Pileus Git - ~andy/gtk/blob - gtk/gtkentry.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include <string.h>
  28
  29 #include <pango/pango.h>
  30
  31 #include "gdk/gdkkeysyms.h"
  32 #include "gtkbindings.h"
  33 #include "gtkcelleditable.h"
  34 #include "gtkclipboard.h"
  35 #include "gtkdnd.h"
  36 #include "gtkentry.h"
  37 #include "gtkimagemenuitem.h"
  38 #include "gtkimmulticontext.h"
  39 #include "gtkintl.h"
  40 #include "gtkmain.h"
  41 #include "gtkmarshalers.h"
  42 #include "gtkmenu.h"
  43 #include "gtkmenuitem.h"
  44 #include "gtkseparatormenuitem.h"
  45 #include "gtkselection.h"
  46 #include "gtksettings.h"
  47 #include "gtkstock.h"
  48 #include "gtksignal.h"
  49 #include "gtktextutil.h"
  50 #include "gtkwindow.h"
  51
  52 #define MIN_ENTRY_WIDTH  150
  53 #define DRAW_TIMEOUT     20
  54 #define INNER_BORDER     2
  55
  56 /* Initial size of buffer, in bytes */
  57 #define MIN_SIZE 16
  58
  59 /* Maximum size of text buffer, in bytes */
  60 #define MAX_SIZE G_MAXUSHORT
  61
  62 enum {
  63   ACTIVATE,
  64   POPULATE_POPUP,
  65   MOVE_CURSOR,
  66   INSERT_AT_CURSOR,
  67   DELETE_FROM_CURSOR,
  68   CUT_CLIPBOARD,
  69   COPY_CLIPBOARD,
  70   PASTE_CLIPBOARD,
  71   TOGGLE_OVERWRITE,
  72   LAST_SIGNAL
  73 };
  74
  75 enum {
  76   PROP_0,
  77   PROP_CURSOR_POSITION,
  78   PROP_SELECTION_BOUND,
  79   PROP_EDITABLE,
  80   PROP_MAX_LENGTH,
  81   PROP_VISIBILITY,
  82   PROP_HAS_FRAME,
  83   PROP_INVISIBLE_CHAR,
  84   PROP_ACTIVATES_DEFAULT,
  85   PROP_WIDTH_CHARS,
  86   PROP_SCROLL_OFFSET,
  87   PROP_TEXT
  88 };
  89
  90 static guint signals[LAST_SIGNAL] = { 0 };
  91
  92 typedef enum {
  93   CURSOR_STANDARD,
  94   CURSOR_DND
  95 } CursorType;
  96
  97 static GtkTargetEntry target_table[] = {
  98   { "UTF8_STRING",   0, 0 },
  99   { "COMPOUND_TEXT", 0, 0 },
 100   { "TEXT",          0, 0 },
 101   { "STRING",        0, 0 }
 102 };
 103
 104 /* GObject, GtkObject methods
 105  */
 106 static void   gtk_entry_class_init           (GtkEntryClass        *klass);
 107 static void   gtk_entry_editable_init        (GtkEditableClass     *iface);
 108 static void   gtk_entry_cell_editable_init   (GtkCellEditableIface *iface);
 109 static void   gtk_entry_init                 (GtkEntry         *entry);
 110 static void   gtk_entry_set_property (GObject         *object,
 111                                       guint            prop_id,
 112                                       const GValue    *value,
 113                                       GParamSpec      *pspec);
 114 static void   gtk_entry_get_property (GObject         *object,
 115                                       guint            prop_id,
 116                                       GValue          *value,
 117                                       GParamSpec      *pspec);
 118 static void   gtk_entry_finalize             (GObject          *object);
 119
 120 /* GtkWidget methods
 121  */
 122 static void   gtk_entry_realize              (GtkWidget        *widget);
 123 static void   gtk_entry_unrealize            (GtkWidget        *widget);
 124 static void   gtk_entry_size_request         (GtkWidget        *widget,
 125                                               GtkRequisition   *requisition);
 126 static void   gtk_entry_size_allocate        (GtkWidget        *widget,
 127                                               GtkAllocation    *allocation);
 128 static void   gtk_entry_draw_frame           (GtkWidget        *widget);
 129 static gint   gtk_entry_expose               (GtkWidget        *widget,
 130                                               GdkEventExpose   *event);
 131 static gint   gtk_entry_button_press         (GtkWidget        *widget,
 132                                               GdkEventButton   *event);
 133 static gint   gtk_entry_button_release       (GtkWidget        *widget,
 134                                               GdkEventButton   *event);
 135 static gint   gtk_entry_motion_notify        (GtkWidget        *widget,
 136                                               GdkEventMotion   *event);
 137 static gint   gtk_entry_key_press            (GtkWidget        *widget,
 138                                               GdkEventKey      *event);
 139 static gint   gtk_entry_key_release          (GtkWidget        *widget,
 140                                               GdkEventKey      *event);
 141 static gint   gtk_entry_focus_in             (GtkWidget        *widget,
 142                                               GdkEventFocus    *event);
 143 static gint   gtk_entry_focus_out            (GtkWidget        *widget,
 144                                               GdkEventFocus    *event);
 145 static void   gtk_entry_grab_focus           (GtkWidget        *widget);
 146 static void   gtk_entry_style_set            (GtkWidget        *widget,
 147                                               GtkStyle         *previous_style);
 148 static void   gtk_entry_direction_changed    (GtkWidget        *widget,
 149                                               GtkTextDirection  previous_dir);
 150 static void   gtk_entry_state_changed        (GtkWidget        *widget,
 151                                               GtkStateType      previous_state);
 152
 153 static gboolean gtk_entry_drag_drop          (GtkWidget        *widget,
 154                                               GdkDragContext   *context,
 155                                               gint              x,
 156                                               gint              y,
 157                                               guint             time);
 158 static gboolean gtk_entry_drag_motion        (GtkWidget        *widget,
 159                                               GdkDragContext   *context,
 160                                               gint              x,
 161                                               gint              y,
 162                                               guint             time);
 163 static void     gtk_entry_drag_leave         (GtkWidget        *widget,
 164                                               GdkDragContext   *context,
 165                                               guint             time);
 166 static void     gtk_entry_drag_data_received (GtkWidget        *widget,
 167                                               GdkDragContext   *context,
 168                                               gint              x,
 169                                               gint              y,
 170                                               GtkSelectionData *selection_data,
 171                                               guint             info,
 172                                               guint             time);
 173 static void     gtk_entry_drag_data_get      (GtkWidget        *widget,
 174                                               GdkDragContext   *context,
 175                                               GtkSelectionData *selection_data,
 176                                               guint             info,
 177                                               guint             time);
 178 static void     gtk_entry_drag_data_delete   (GtkWidget        *widget,
 179                                               GdkDragContext   *context);
 180
 181 /* GtkEditable method implementations
 182  */
 183 static void     gtk_entry_insert_text          (GtkEditable *editable,
 184                                                 const gchar *new_text,
 185                                                 gint         new_text_length,
 186                                                 gint        *position);
 187 static void     gtk_entry_delete_text          (GtkEditable *editable,
 188                                                 gint         start_pos,
 189                                                 gint         end_pos);
 190 static gchar *  gtk_entry_get_chars            (GtkEditable *editable,
 191                                                 gint         start_pos,
 192                                                 gint         end_pos);
 193 static void     gtk_entry_real_set_position    (GtkEditable *editable,
 194                                                 gint         position);
 195 static gint     gtk_entry_get_position         (GtkEditable *editable);
 196 static void     gtk_entry_set_selection_bounds (GtkEditable *editable,
 197                                                 gint         start,
 198                                                 gint         end);
 199 static gboolean gtk_entry_get_selection_bounds (GtkEditable *editable,
 200                                                 gint        *start,
 201                                                 gint        *end);
 202
 203 /* GtkCellEditable method implementations
 204  */
 205 static void gtk_entry_start_editing (GtkCellEditable *cell_editable,
 206                                      GdkEvent        *event);
 207
 208 /* Default signal handlers
 209  */
 210 static void gtk_entry_real_insert_text   (GtkEditable     *editable,
 211                                           const gchar     *new_text,
 212                                           gint             new_text_length,
 213                                           gint            *position);
 214 static void gtk_entry_real_delete_text   (GtkEditable     *editable,
 215                                           gint             start_pos,
 216                                           gint             end_pos);
 217 static void gtk_entry_move_cursor        (GtkEntry        *entry,
 218                                           GtkMovementStep  step,
 219                                           gint             count,
 220                                           gboolean         extend_selection);
 221 static void gtk_entry_insert_at_cursor   (GtkEntry        *entry,
 222                                           const gchar     *str);
 223 static void gtk_entry_delete_from_cursor (GtkEntry        *entry,
 224                                           GtkDeleteType    type,
 225                                           gint             count);
 226 static void gtk_entry_cut_clipboard      (GtkEntry        *entry);
 227 static void gtk_entry_copy_clipboard     (GtkEntry        *entry);
 228 static void gtk_entry_paste_clipboard    (GtkEntry        *entry);
 229 static void gtk_entry_toggle_overwrite   (GtkEntry        *entry);
 230 static void gtk_entry_select_all         (GtkEntry        *entry);
 231 static void gtk_entry_real_activate      (GtkEntry        *entry);
 232 static gboolean gtk_entry_popup_menu     (GtkWidget      *widget);
 233
 234 static void gtk_entry_keymap_direction_changed (GdkKeymap *keymap,
 235                                                 GtkEntry  *entry);
 236 /* IM Context Callbacks
 237  */
 238 static void     gtk_entry_commit_cb               (GtkIMContext *context,
 239                                                    const gchar  *str,
 240                                                    GtkEntry     *entry);
 241 static void     gtk_entry_preedit_changed_cb      (GtkIMContext *context,
 242                                                    GtkEntry     *entry);
 243 static gboolean gtk_entry_retrieve_surrounding_cb (GtkIMContext *context,
 244                                                    GtkEntry     *entry);
 245 static gboolean gtk_entry_delete_surrounding_cb   (GtkIMContext *context,
 246                                                    gint          offset,
 247                                                    gint          n_chars,
 248                                                    GtkEntry     *entry);
 249
 250 /* Internal routines
 251  */
 252 static void         gtk_entry_enter_text               (GtkEntry       *entry,
 253                                                         const gchar    *str);
 254 static void         gtk_entry_set_positions            (GtkEntry       *entry,
 255                                                         gint            current_pos,
 256                                                         gint            selection_bound);
 257 static void         gtk_entry_draw_text                (GtkEntry       *entry);
 258 static void         gtk_entry_draw_cursor              (GtkEntry       *entry,
 259                                                         CursorType      type);
 260 static PangoLayout *gtk_entry_ensure_layout            (GtkEntry       *entry,
 261                                                         gboolean        include_preedit);
 262 static void         gtk_entry_queue_draw               (GtkEntry       *entry);
 263 static void         gtk_entry_reset_im_context         (GtkEntry       *entry);
 264 static void         gtk_entry_recompute                (GtkEntry       *entry);
 265 static gint         gtk_entry_find_position            (GtkEntry       *entry,
 266                                                         gint            x);
 267 static void         gtk_entry_get_cursor_locations     (GtkEntry       *entry,
 268                                                         CursorType      type,
 269                                                         gint           *strong_x,
 270                                                         gint           *weak_x);
 271 static void         gtk_entry_adjust_scroll            (GtkEntry       *entry);
 272 static gint         gtk_entry_move_visually            (GtkEntry       *editable,
 273                                                         gint            start,
 274                                                         gint            count);
 275 static gint         gtk_entry_move_logically           (GtkEntry       *entry,
 276                                                         gint            start,
 277                                                         gint            count);
 278 static gint         gtk_entry_move_forward_word        (GtkEntry       *entry,
 279                                                         gint            start);
 280 static gint         gtk_entry_move_backward_word       (GtkEntry       *entry,
 281                                                         gint            start);
 282 static void         gtk_entry_delete_whitespace        (GtkEntry       *entry);
 283 static void         gtk_entry_select_word              (GtkEntry       *entry);
 284 static void         gtk_entry_select_line              (GtkEntry       *entry);
 285 static char *       gtk_entry_get_public_chars         (GtkEntry       *entry,
 286                                                         gint            start,
 287                                                         gint            end);
 288 static void         gtk_entry_paste                    (GtkEntry       *entry,
 289                                                         GdkAtom         selection);
 290 static void         gtk_entry_update_primary_selection (GtkEntry       *entry);
 291 static void         gtk_entry_do_popup                 (GtkEntry       *entry,
 292                                                         GdkEventButton *event);
 293 static gboolean     gtk_entry_mnemonic_activate        (GtkWidget      *widget,
 294                                                         gboolean        group_cycling);
 295 static void         gtk_entry_state_changed            (GtkWidget      *widget,
 296                                                         GtkStateType    previous_state);
 297 static void         gtk_entry_check_cursor_blink       (GtkEntry       *entry);
 298 static void         gtk_entry_pend_cursor_blink        (GtkEntry       *entry);
 299 static void         get_text_area_size                 (GtkEntry       *entry,
 300                                                         gint           *x,
 301                                                         gint           *y,
 302                                                         gint           *width,
 303                                                         gint           *height);
 304 static void         get_widget_window_size             (GtkEntry       *entry,
 305                                                         gint           *x,
 306                                                         gint           *y,
 307                                                         gint           *width,
 308                                                         gint           *height);
 309
 310 static GtkWidgetClass *parent_class = NULL;
 311
 312 GtkType
 313 gtk_entry_get_type (void)
 314 {
 315   static GtkType entry_type = 0;
 316
 317   if (!entry_type)
 318     {
 319       static const GtkTypeInfo entry_info =
 320       {
 321         "GtkEntry",
 322         sizeof (GtkEntry),
 323         sizeof (GtkEntryClass),
 324         (GtkClassInitFunc) gtk_entry_class_init,
 325         (GtkObjectInitFunc) gtk_entry_init,
 326         /* reserved_1 */ NULL,
 327         /* reserved_2 */ NULL,
 328         (GtkClassInitFunc) NULL,
 329       };
 330
 331       static const GInterfaceInfo editable_info =
 332       {
 333         (GInterfaceInitFunc) gtk_entry_editable_init,    /* interface_init */
 334         NULL,                                            /* interface_finalize */
 335         NULL                                             /* interface_data */
 336       };
 337
 338       static const GInterfaceInfo cell_editable_info =
 339       {
 340         (GInterfaceInitFunc) gtk_entry_cell_editable_init,    /* interface_init */
 341         NULL,                                                 /* interface_finalize */
 342         NULL                                                  /* interface_data */
 343       };
 344
 345       entry_type = gtk_type_unique (GTK_TYPE_WIDGET, &entry_info);
 346       g_type_add_interface_static (entry_type,
 347                                    GTK_TYPE_EDITABLE,
 348                                    &editable_info);
 349       g_type_add_interface_static (entry_type,
 350                                    GTK_TYPE_CELL_EDITABLE,
 351                                    &cell_editable_info);
 352     }
 353
 354   return entry_type;
 355 }
 356
 357 static void
 358 add_move_binding (GtkBindingSet  *binding_set,
 359                   guint           keyval,
 360                   guint           modmask,
 361                   GtkMovementStep step,
 362                   gint            count)
 363 {
 364   g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
 365
 366   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
 367                                 "move_cursor", 3,
 368                                 GTK_TYPE_ENUM, step,
 369                                 G_TYPE_INT, count,
 370                                 G_TYPE_BOOLEAN, FALSE);
 371
 372   /* Selection-extending version */
 373   gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
 374                                 "move_cursor", 3,
 375                                 GTK_TYPE_ENUM, step,
 376                                 G_TYPE_INT, count,
 377                                 G_TYPE_BOOLEAN, TRUE);
 378 }
 379
 380 static void
 381 gtk_entry_class_init (GtkEntryClass *class)
 382 {
 383   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 384   GtkObjectClass *object_class;
 385   GtkWidgetClass *widget_class;
 386   GtkBindingSet *binding_set;
 387
 388   object_class = (GtkObjectClass*) class;
 389   widget_class = (GtkWidgetClass*) class;
 390   parent_class = gtk_type_class (GTK_TYPE_WIDGET);
 391
 392   gobject_class->finalize = gtk_entry_finalize;
 393   gobject_class->set_property = gtk_entry_set_property;
 394   gobject_class->get_property = gtk_entry_get_property;
 395
 396   widget_class->realize = gtk_entry_realize;
 397   widget_class->unrealize = gtk_entry_unrealize;
 398   widget_class->size_request = gtk_entry_size_request;
 399   widget_class->size_allocate = gtk_entry_size_allocate;
 400   widget_class->expose_event = gtk_entry_expose;
 401   widget_class->button_press_event = gtk_entry_button_press;
 402   widget_class->button_release_event = gtk_entry_button_release;
 403   widget_class->motion_notify_event = gtk_entry_motion_notify;
 404   widget_class->key_press_event = gtk_entry_key_press;
 405   widget_class->key_release_event = gtk_entry_key_release;
 406   widget_class->focus_in_event = gtk_entry_focus_in;
 407   widget_class->focus_out_event = gtk_entry_focus_out;
 408   widget_class->grab_focus = gtk_entry_grab_focus;
 409   widget_class->style_set = gtk_entry_style_set;
 410   widget_class->direction_changed = gtk_entry_direction_changed;
 411   widget_class->state_changed = gtk_entry_state_changed;
 412   widget_class->mnemonic_activate = gtk_entry_mnemonic_activate;
 413
 414   widget_class->drag_drop = gtk_entry_drag_drop;
 415   widget_class->drag_motion = gtk_entry_drag_motion;
 416   widget_class->drag_leave = gtk_entry_drag_leave;
 417   widget_class->drag_data_received = gtk_entry_drag_data_received;
 418   widget_class->drag_data_get = gtk_entry_drag_data_get;
 419   widget_class->drag_data_delete = gtk_entry_drag_data_delete;
 420
 421   widget_class->popup_menu = gtk_entry_popup_menu;
 422
 423   class->move_cursor = gtk_entry_move_cursor;
 424   class->insert_at_cursor = gtk_entry_insert_at_cursor;
 425   class->delete_from_cursor = gtk_entry_delete_from_cursor;
 426   class->cut_clipboard = gtk_entry_cut_clipboard;
 427   class->copy_clipboard = gtk_entry_copy_clipboard;
 428   class->paste_clipboard = gtk_entry_paste_clipboard;
 429   class->toggle_overwrite = gtk_entry_toggle_overwrite;
 430   class->activate = gtk_entry_real_activate;
 431
 432   g_object_class_install_property (gobject_class,
 433                                    PROP_CURSOR_POSITION,
 434                                    g_param_spec_int ("cursor_position",
 435                                                      _("Cursor Position"),
 436                                                      _("The current position of the insertion cursor in chars."),
 437                                                      0,
 438                                                      G_MAXINT,
 439                                                      0,
 440                                                      G_PARAM_READABLE));
 441
 442   g_object_class_install_property (gobject_class,
 443                                    PROP_SELECTION_BOUND,
 444                                    g_param_spec_int ("selection_bound",
 445                                                      _("Selection Bound"),
 446                                                      _("The position of the opposite end of the selection from the cursor in chars."),
 447                                                      0,
 448                                                      G_MAXINT,
 449                                                      0,
 450                                                      G_PARAM_READABLE));
 451
 452   g_object_class_install_property (gobject_class,
 453                                    PROP_EDITABLE,
 454                                    g_param_spec_boolean ("editable",
 455                                                          _("Editable"),
 456                                                          _("Whether the entry contents can be edited"),
 457                                                          TRUE,
 458                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 459
 460   g_object_class_install_property (gobject_class,
 461                                    PROP_MAX_LENGTH,
 462                                    g_param_spec_int ("max_length",
 463                                                      _("Maximum length"),
 464                                                      _("Maximum number of characters for this entry"),
 465                                                      -1,
 466                                                      G_MAXINT,
 467                                                      -1,
 468                                                      G_PARAM_READABLE | G_PARAM_WRITABLE));
 469   g_object_class_install_property (gobject_class,
 470                                    PROP_VISIBILITY,
 471                                    g_param_spec_boolean ("visibility",
 472                                                          _("Visibility"),
 473                                                          _("FALSE displays the \"invisible char\" instead of the actual text (password mode)"),
 474                                                          TRUE,
 475                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 476
 477   g_object_class_install_property (gobject_class,
 478                                    PROP_HAS_FRAME,
 479                                    g_param_spec_boolean ("has_frame",
 480                                                          _("Has Frame"),
 481                                                          _("FALSE removes outside bevel from entry."),
 482                                                          TRUE,
 483                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 484
 485     g_object_class_install_property (gobject_class,
 486                                    PROP_INVISIBLE_CHAR,
 487                                    g_param_spec_unichar ("invisible_char",
 488                                                          _("Invisible character"),
 489                                                          _("The character to use when masking entry contents (in \"password mode\")"),
 490                                                          '*',
 491                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 492
 493   g_object_class_install_property (gobject_class,
 494                                    PROP_ACTIVATES_DEFAULT,
 495                                    g_param_spec_boolean ("activates_default",
 496                                                          _("Activates default"),
 497                                                          _("Whether to activate the default widget (such as the default button in a dialog) when Enter is pressed."),
 498                                                          FALSE,
 499                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 500   g_object_class_install_property (gobject_class,
 501                                    PROP_WIDTH_CHARS,
 502                                    g_param_spec_int ("width_chars",
 503                                                      _("Width in chars"),
 504                                                      _("Number of characters to leave space for in the entry."),
 505                                                      -1,
 506                                                      G_MAXINT,
 507                                                      -1,
 508                                                      G_PARAM_READABLE | G_PARAM_WRITABLE));
 509
 510   g_object_class_install_property (gobject_class,
 511                                    PROP_SCROLL_OFFSET,
 512                                    g_param_spec_int ("scroll_offset",
 513                                                      _("Scroll offset"),
 514                                                      _("Number of pixels of the entry scrolled off the screen to the left"),
 515                                                      0,
 516                                                      G_MAXINT,
 517                                                      0,
 518                                                      G_PARAM_READABLE));
 519
 520   g_object_class_install_property (gobject_class,
 521                                    PROP_TEXT,
 522                                    g_param_spec_string ("text",
 523                                                         _("Text"),
 524                                                         _("The contents of the entry"),
 525                                                         "",
 526                                                         G_PARAM_READABLE | G_PARAM_WRITABLE));
 527
 528   signals[POPULATE_POPUP] =
 529     gtk_signal_new ("populate_popup",
 530                     GTK_RUN_LAST,
 531                     GTK_CLASS_TYPE (object_class),
 532                     GTK_SIGNAL_OFFSET (GtkEntryClass, populate_popup),
 533                     _gtk_marshal_VOID__OBJECT,
 534                     GTK_TYPE_NONE, 1, GTK_TYPE_MENU);
 535
 536  /* Action signals */
 537
 538   signals[ACTIVATE] =
 539     gtk_signal_new ("activate",
 540                     GTK_RUN_LAST | GTK_RUN_ACTION,
 541                     GTK_CLASS_TYPE (object_class),
 542                     GTK_SIGNAL_OFFSET (GtkEntryClass, activate),
 543                     _gtk_marshal_VOID__VOID,
 544                     GTK_TYPE_NONE, 0);
 545   widget_class->activate_signal = signals[ACTIVATE];
 546
 547   signals[MOVE_CURSOR] =
 548       gtk_signal_new ("move_cursor",
 549                       GTK_RUN_LAST | GTK_RUN_ACTION,
 550                       GTK_CLASS_TYPE (object_class),
 551                       GTK_SIGNAL_OFFSET (GtkEntryClass, move_cursor),
 552                       _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
 553                       GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL);
 554
 555   signals[INSERT_AT_CURSOR] =
 556       gtk_signal_new ("insert_at_cursor",
 557                       GTK_RUN_LAST | GTK_RUN_ACTION,
 558                       GTK_CLASS_TYPE (object_class),
 559                       GTK_SIGNAL_OFFSET (GtkEntryClass, insert_at_cursor),
 560                       _gtk_marshal_VOID__STRING,
 561                       GTK_TYPE_NONE, 1, GTK_TYPE_STRING);
 562
 563   signals[DELETE_FROM_CURSOR] =
 564       gtk_signal_new ("delete_from_cursor",
 565                       GTK_RUN_LAST | GTK_RUN_ACTION,
 566                       GTK_CLASS_TYPE (object_class),
 567                       GTK_SIGNAL_OFFSET (GtkEntryClass, delete_from_cursor),
 568                       _gtk_marshal_VOID__ENUM_INT,
 569                       GTK_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, GTK_TYPE_INT);
 570
 571   signals[CUT_CLIPBOARD] =
 572     gtk_signal_new ("cut_clipboard",
 573                     GTK_RUN_LAST | GTK_RUN_ACTION,
 574                     GTK_CLASS_TYPE (object_class),
 575                     GTK_SIGNAL_OFFSET (GtkEntryClass, cut_clipboard),
 576                     _gtk_marshal_VOID__VOID,
 577                     GTK_TYPE_NONE, 0);
 578
 579   signals[COPY_CLIPBOARD] =
 580     gtk_signal_new ("copy_clipboard",
 581                     GTK_RUN_LAST | GTK_RUN_ACTION,
 582                     GTK_CLASS_TYPE (object_class),
 583                     GTK_SIGNAL_OFFSET (GtkEntryClass, copy_clipboard),
 584                     _gtk_marshal_VOID__VOID,
 585                     GTK_TYPE_NONE, 0);
 586
 587   signals[PASTE_CLIPBOARD] =
 588     gtk_signal_new ("paste_clipboard",
 589                     GTK_RUN_LAST | GTK_RUN_ACTION,
 590                     GTK_CLASS_TYPE (object_class),
 591                     GTK_SIGNAL_OFFSET (GtkEntryClass, paste_clipboard),
 592                     _gtk_marshal_VOID__VOID,
 593                     GTK_TYPE_NONE, 0);
 594
 595   signals[TOGGLE_OVERWRITE] =
 596     gtk_signal_new ("toggle_overwrite",
 597                     GTK_RUN_LAST | GTK_RUN_ACTION,
 598                     GTK_CLASS_TYPE (object_class),
 599                     GTK_SIGNAL_OFFSET (GtkEntryClass, toggle_overwrite),
 600                     _gtk_marshal_VOID__VOID,
 601                     GTK_TYPE_NONE, 0);
 602
 603   /*
 604    * Key bindings
 605    */
 606
 607   binding_set = gtk_binding_set_by_class (class);
 608
 609   /* Moving the insertion point */
 610   add_move_binding (binding_set, GDK_Right, 0,
 611                     GTK_MOVEMENT_VISUAL_POSITIONS, 1);
 612
 613   add_move_binding (binding_set, GDK_Left, 0,
 614                     GTK_MOVEMENT_VISUAL_POSITIONS, -1);
 615
 616   add_move_binding (binding_set, GDK_KP_Right, 0,
 617                     GTK_MOVEMENT_VISUAL_POSITIONS, 1);
 618
 619   add_move_binding (binding_set, GDK_KP_Left, 0,
 620                     GTK_MOVEMENT_VISUAL_POSITIONS, -1);
 621
 622   add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
 623                     GTK_MOVEMENT_WORDS, 1);
 624
 625   add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
 626                     GTK_MOVEMENT_WORDS, -1);
 627
 628   add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
 629                     GTK_MOVEMENT_WORDS, 1);
 630
 631   add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
 632                     GTK_MOVEMENT_WORDS, -1);
 633
 634   add_move_binding (binding_set, GDK_Home, 0,
 635                     GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
 636
 637   add_move_binding (binding_set, GDK_End, 0,
 638                     GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
 639
 640   add_move_binding (binding_set, GDK_KP_Home, 0,
 641                     GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
 642
 643   add_move_binding (binding_set, GDK_KP_End, 0,
 644                     GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
 645
 646   add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
 647                     GTK_MOVEMENT_BUFFER_ENDS, -1);
 648
 649   add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
 650                     GTK_MOVEMENT_BUFFER_ENDS, 1);
 651
 652   add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
 653                     GTK_MOVEMENT_BUFFER_ENDS, -1);
 654
 655   add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
 656                     GTK_MOVEMENT_BUFFER_ENDS, 1);
 657
 658   /* Select all
 659    */
 660   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
 661                                 "move_cursor", 3,
 662                                 GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
 663                                 GTK_TYPE_INT, -1,
 664                                 GTK_TYPE_BOOL, FALSE);
 665   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
 666                                 "move_cursor", 3,
 667                                 GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
 668                                 GTK_TYPE_INT, 1,
 669                                 GTK_TYPE_BOOL, TRUE);
 670
 671
 672   /* Activate
 673    */
 674   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
 675                                 "activate", 0);
 676   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
 677                                 "activate", 0);
 678
 679   /* Deleting text */
 680   gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
 681                                 "delete_from_cursor", 2,
 682                                 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
 683                                 GTK_TYPE_INT, 1);
 684
 685   gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
 686                                 "delete_from_cursor", 2,
 687                                 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
 688                                 GTK_TYPE_INT, 1);
 689
 690   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
 691                                 "delete_from_cursor", 2,
 692                                 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
 693                                 GTK_TYPE_INT, -1);
 694
 695   gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
 696                                 "delete_from_cursor", 2,
 697                                 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
 698                                 GTK_TYPE_INT, 1);
 699
 700   gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
 701                                 "delete_from_cursor", 2,
 702                                 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
 703                                 GTK_TYPE_INT, 1);
 704
 705   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
 706                                 "delete_from_cursor", 2,
 707                                 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
 708                                 GTK_TYPE_INT, -1);
 709
 710   /* Cut/copy/paste */
 711
 712   gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
 713                                 "cut_clipboard", 0);
 714
 715   gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
 716                                 "copy_clipboard", 0);
 717
 718   gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
 719                                 "paste_clipboard", 0);
 720
 721   /* Overwrite */
 722   gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
 723                                 "toggle_overwrite", 0);
 724   gtk_binding_entry_add_signal (binding_set, GDK_KP_Insert, 0,
 725                                 "toggle_overwrite", 0);
 726
 727   gtk_settings_install_property (g_param_spec_boolean ("gtk-entry-select-on-focus",
 728                                                        _("Select on focus"),
 729                                                        _("Whether to select the contents of an entry when it is focused."),
 730                                                        TRUE,
 731                                                        G_PARAM_READWRITE));
 732 }
 733
 734 static void
 735 gtk_entry_editable_init (GtkEditableClass *iface)
 736 {
 737   iface->do_insert_text = gtk_entry_insert_text;
 738   iface->do_delete_text = gtk_entry_delete_text;
 739   iface->insert_text = gtk_entry_real_insert_text;
 740   iface->delete_text = gtk_entry_real_delete_text;
 741   iface->get_chars = gtk_entry_get_chars;
 742   iface->set_selection_bounds = gtk_entry_set_selection_bounds;
 743   iface->get_selection_bounds = gtk_entry_get_selection_bounds;
 744   iface->set_position = gtk_entry_real_set_position;
 745   iface->get_position = gtk_entry_get_position;
 746 }
 747
 748 static void
 749 gtk_entry_cell_editable_init (GtkCellEditableIface *iface)
 750 {
 751   iface->start_editing = gtk_entry_start_editing;
 752 }
 753
 754 static void
 755 gtk_entry_set_property (GObject         *object,
 756                         guint            prop_id,
 757                         const GValue    *value,
 758                         GParamSpec      *pspec)
 759 {
 760   GtkEntry *entry = GTK_ENTRY (object);
 761
 762   switch (prop_id)
 763     {
 764     case PROP_EDITABLE:
 765       {
 766         gboolean new_value = g_value_get_boolean (value);
 767
 768         if (new_value != entry->editable)
 769           {
 770             entry->editable = new_value;
 771             gtk_entry_queue_draw (entry);
 772
 773             if (!entry->editable)
 774               gtk_entry_reset_im_context (entry);
 775           }
 776       }
 777       break;
 778
 779     case PROP_MAX_LENGTH:
 780       gtk_entry_set_max_length (entry, g_value_get_int (value));
 781       break;
 782
 783     case PROP_VISIBILITY:
 784       gtk_entry_set_visibility (entry, g_value_get_boolean (value));
 785       break;
 786
 787     case PROP_HAS_FRAME:
 788       gtk_entry_set_has_frame (entry, g_value_get_boolean (value));
 789       break;
 790
 791     case PROP_INVISIBLE_CHAR:
 792       gtk_entry_set_invisible_char (entry, g_value_get_uint (value));
 793       break;
 794
 795     case PROP_ACTIVATES_DEFAULT:
 796       gtk_entry_set_activates_default (entry, g_value_get_boolean (value));
 797       break;
 798
 799     case PROP_WIDTH_CHARS:
 800       gtk_entry_set_width_chars (entry, g_value_get_int (value));
 801       break;
 802
 803     case PROP_TEXT:
 804       gtk_entry_set_text (entry, g_value_get_string (value));
 805       break;
 806
 807     case PROP_SCROLL_OFFSET:
 808     case PROP_CURSOR_POSITION:
 809     default:
 810       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 811       break;
 812     }
 813 }
 814
 815 static void
 816 gtk_entry_get_property (GObject         *object,
 817                         guint            prop_id,
 818                         GValue          *value,
 819                         GParamSpec      *pspec)
 820 {
 821   GtkEntry *entry = GTK_ENTRY (object);
 822
 823   switch (prop_id)
 824     {
 825     case PROP_CURSOR_POSITION:
 826       g_value_set_int (value, entry->current_pos);
 827       break;
 828     case PROP_SELECTION_BOUND:
 829       g_value_set_int (value, entry->selection_bound);
 830       break;
 831     case PROP_EDITABLE:
 832       g_value_set_boolean (value, entry->editable);
 833       break;
 834     case PROP_MAX_LENGTH:
 835       g_value_set_int (value, entry->text_max_length);
 836       break;
 837     case PROP_VISIBILITY:
 838       g_value_set_boolean (value, entry->visible);
 839       break;
 840     case PROP_HAS_FRAME:
 841       g_value_set_boolean (value, entry->has_frame);
 842       break;
 843     case PROP_INVISIBLE_CHAR:
 844       g_value_set_uint (value, entry->invisible_char);
 845       break;
 846     case PROP_ACTIVATES_DEFAULT:
 847       g_value_set_boolean (value, entry->activates_default);
 848       break;
 849     case PROP_WIDTH_CHARS:
 850       g_value_set_int (value, entry->width_chars);
 851       break;
 852     case PROP_SCROLL_OFFSET:
 853       g_value_set_int (value, entry->scroll_offset);
 854       break;
 855     case PROP_TEXT:
 856       g_value_set_string (value, gtk_entry_get_text (entry));
 857       break;
 858
 859     default:
 860       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 861       break;
 862     }
 863 }
 864
 865 static void
 866 gtk_entry_init (GtkEntry *entry)
 867 {
 868   GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS);
 869
 870   entry->text_size = MIN_SIZE;
 871   entry->text = g_malloc (entry->text_size);
 872   entry->text[0] = '\0';
 873
 874   entry->editable = TRUE;
 875   entry->visible = TRUE;
 876   entry->invisible_char = '*';
 877   entry->dnd_position = -1;
 878   entry->width_chars = -1;
 879   entry->is_cell_renderer = FALSE;
 880   entry->editing_canceled = FALSE;
 881   entry->has_frame = TRUE;
 882
 883   gtk_drag_dest_set (GTK_WIDGET (entry),
 884                      GTK_DEST_DEFAULT_HIGHLIGHT,
 885                      target_table, G_N_ELEMENTS (target_table),
 886                      GDK_ACTION_COPY | GDK_ACTION_MOVE);
 887
 888   /* This object is completely private. No external entity can gain a reference
 889    * to it; so we create it here and destroy it in finalize().
 890    */
 891   entry->im_context = gtk_im_multicontext_new ();
 892
 893   g_signal_connect (G_OBJECT (entry->im_context), "commit",
 894                     G_CALLBACK (gtk_entry_commit_cb), entry);
 895   g_signal_connect (G_OBJECT (entry->im_context), "preedit_changed",
 896                     G_CALLBACK (gtk_entry_preedit_changed_cb), entry);
 897   g_signal_connect (G_OBJECT (entry->im_context), "retrieve_surrounding",
 898                     G_CALLBACK (gtk_entry_retrieve_surrounding_cb), entry);
 899   g_signal_connect (G_OBJECT (entry->im_context), "delete_surrounding",
 900                     G_CALLBACK (gtk_entry_delete_surrounding_cb), entry);
 901 }
 902
 903 static void
 904 gtk_entry_finalize (GObject *object)
 905 {
 906   GtkEntry *entry = GTK_ENTRY (object);
 907
 908   if (entry->cached_layout)
 909     g_object_unref (G_OBJECT (entry->cached_layout));
 910
 911   g_object_unref (G_OBJECT (entry->im_context));
 912
 913   if (entry->blink_timeout)
 914     g_source_remove (entry->blink_timeout);
 915
 916   if (entry->recompute_idle)
 917     g_source_remove (entry->recompute_idle);
 918
 919   entry->text_size = 0;
 920
 921   if (entry->text)
 922     g_free (entry->text);
 923   entry->text = NULL;
 924
 925   G_OBJECT_CLASS (parent_class)->finalize (object);
 926 }
 927
 928 static void
 929 gtk_entry_realize_cursor_gc (GtkEntry *entry)
 930 {
 931   GdkColor *cursor_color;
 932   GdkColor red = {0, 0xffff, 0x0000, 0x0000};
 933
 934   if (entry->cursor_gc)
 935     gdk_gc_unref (entry->cursor_gc);
 936
 937   gtk_widget_style_get (GTK_WIDGET (entry), "cursor-color", &cursor_color, NULL);
 938       entry->cursor_gc = gdk_gc_new (entry->text_area);
 939   if (cursor_color)
 940     gdk_gc_set_rgb_fg_color (entry->cursor_gc, cursor_color);
 941   else
 942     gdk_gc_set_rgb_fg_color (entry->cursor_gc, &red);
 943 }
 944
 945 static void
 946 gtk_entry_realize (GtkWidget *widget)
 947 {
 948   GtkEntry *entry;
 949   GtkEditable *editable;
 950   GdkWindowAttr attributes;
 951   gint attributes_mask;
 952
 953   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 954   entry = GTK_ENTRY (widget);
 955   editable = GTK_EDITABLE (widget);
 956
 957   attributes.window_type = GDK_WINDOW_CHILD;
 958
 959   get_widget_window_size (entry, &attributes.x, &attributes.y, &attributes.width, &attributes.height);
 960
 961   attributes.wclass = GDK_INPUT_OUTPUT;
 962   attributes.visual = gtk_widget_get_visual (widget);
 963   attributes.colormap = gtk_widget_get_colormap (widget);
 964   attributes.event_mask = gtk_widget_get_events (widget);
 965   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 966                             GDK_BUTTON_PRESS_MASK |
 967                             GDK_BUTTON_RELEASE_MASK |
 968                             GDK_BUTTON1_MOTION_MASK |
 969                             GDK_BUTTON3_MOTION_MASK |
 970                             GDK_POINTER_MOTION_HINT_MASK |
 971                             GDK_POINTER_MOTION_MASK |
 972                             GDK_ENTER_NOTIFY_MASK |
 973                             GDK_LEAVE_NOTIFY_MASK);
 974   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 975
 976   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
 977   gdk_window_set_user_data (widget->window, entry);
 978
 979   get_text_area_size (entry, &attributes.x, &attributes.y, &attributes.width, &attributes.height);
 980
 981   attributes.cursor = gdk_cursor_new (GDK_XTERM);
 982   attributes_mask |= GDK_WA_CURSOR;
 983
 984   entry->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
 985   gdk_window_set_user_data (entry->text_area, entry);
 986
 987   gdk_cursor_unref (attributes.cursor);
 988
 989   widget->style = gtk_style_attach (widget->style, widget->window);
 990
 991   gtk_entry_realize_cursor_gc (entry);
 992
 993   gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
 994   gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
 995
 996   gdk_window_show (entry->text_area);
 997
 998   gtk_im_context_set_client_window (entry->im_context, entry->text_area);
 999
1000   gtk_entry_adjust_scroll (entry);
1001 }
1002
1003 static void
1004 gtk_entry_unrealize (GtkWidget *widget)
1005 {
1006   GtkEntry *entry = GTK_ENTRY (widget);
1007
1008   gtk_im_context_set_client_window (entry->im_context, entry->text_area);
1009
1010   if (entry->text_area)
1011     {
1012       gdk_window_set_user_data (entry->text_area, NULL);
1013       gdk_window_destroy (entry->text_area);
1014       entry->text_area = NULL;
1015     }
1016
1017   if (entry->cursor_gc)
1018     {
1019       gdk_gc_unref (entry->cursor_gc);
1020       entry->cursor_gc = NULL;
1021     }
1022
1023   if (entry->popup_menu)
1024     {
1025       gtk_widget_destroy (entry->popup_menu);
1026       entry->popup_menu = NULL;
1027     }
1028
1029   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
1030     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
1031 }
1032
1033 static void
1034 get_borders (GtkEntry *entry,
1035              gint     *xborder,
1036              gint     *yborder)
1037 {
1038   GtkWidget *widget = GTK_WIDGET (entry);
1039   gint focus_width;
1040   gboolean interior_focus;
1041
1042   gtk_widget_style_get (widget,
1043                         "interior-focus", &interior_focus,
1044                         "focus-line-width", &focus_width,
1045                         NULL);
1046
1047   if (entry->has_frame)
1048     {
1049       *xborder = widget->style->xthickness;
1050       *yborder = widget->style->ythickness;
1051     }
1052   else
1053     {
1054       *xborder = 0;
1055       *yborder = 0;
1056     }
1057
1058   if (!interior_focus)
1059     {
1060       *xborder += focus_width;
1061       *yborder += focus_width;
1062     }
1063 }
1064
1065 static void
1066 gtk_entry_size_request (GtkWidget      *widget,
1067                         GtkRequisition *requisition)
1068 {
1069   GtkEntry *entry = GTK_ENTRY (widget);
1070   PangoFontMetrics *metrics;
1071   gint xborder, yborder;
1072   PangoContext *context;
1073
1074   context = gtk_widget_get_pango_context (widget);
1075   metrics = pango_context_get_metrics (context,
1076                                        widget->style->font_desc,
1077                                        pango_context_get_language (context));
1078
1079   entry->ascent = pango_font_metrics_get_ascent (metrics);
1080   entry->descent = pango_font_metrics_get_descent (metrics);
1081
1082   get_borders (entry, &xborder, &yborder);
1083
1084   xborder += INNER_BORDER;
1085   yborder += INNER_BORDER;
1086
1087   if (entry->width_chars < 0)
1088     requisition->width = MIN_ENTRY_WIDTH + xborder * 2;
1089   else
1090     {
1091       gint char_width = pango_font_metrics_get_approximate_char_width (metrics);
1092       requisition->width = PANGO_PIXELS (char_width) * entry->width_chars + xborder * 2;
1093     }
1094
1095   requisition->height = PANGO_PIXELS (entry->ascent + entry->descent) + yborder * 2;
1096
1097   pango_font_metrics_unref (metrics);
1098 }
1099
1100 static void
1101 get_text_area_size (GtkEntry *entry,
1102                     gint     *x,
1103                     gint     *y,
1104                     gint     *width,
1105                     gint     *height)
1106 {
1107   gint xborder, yborder;
1108   GtkRequisition requisition;
1109   GtkWidget *widget = GTK_WIDGET (entry);
1110
1111   gtk_widget_get_child_requisition (widget, &requisition);
1112
1113   get_borders (entry, &xborder, &yborder);
1114
1115   if (x)
1116     *x = xborder;
1117
1118   if (y)
1119     *y = yborder;
1120
1121   if (width)
1122     *width = GTK_WIDGET (entry)->allocation.width - xborder * 2;
1123
1124   if (height)
1125     *height = requisition.height - yborder * 2;
1126 }
1127
1128 static void
1129 get_widget_window_size (GtkEntry *entry,
1130                         gint     *x,
1131                         gint     *y,
1132                         gint     *width,
1133                         gint     *height)
1134 {
1135   GtkRequisition requisition;
1136   GtkWidget *widget = GTK_WIDGET (entry);
1137
1138   gtk_widget_get_child_requisition (widget, &requisition);
1139
1140   if (x)
1141     *x = widget->allocation.x;
1142
1143   if (y)
1144     {
1145       if (entry->is_cell_renderer)
1146         *y = widget->allocation.y;
1147       else
1148         *y = widget->allocation.y + (widget->allocation.height - requisition.height) / 2;
1149     }
1150
1151   if (width)
1152     *width = widget->allocation.width;
1153
1154   if (height)
1155     {
1156       if (entry->is_cell_renderer)
1157         *height = widget->allocation.height;
1158       else
1159         *height = requisition.height;
1160     }
1161 }
1162
1163 static void
1164 gtk_entry_size_allocate (GtkWidget     *widget,
1165                          GtkAllocation *allocation)
1166 {
1167   GtkEntry *entry = GTK_ENTRY (widget);
1168
1169   widget->allocation = *allocation;
1170
1171   if (GTK_WIDGET_REALIZED (widget))
1172     {
1173       /* We call gtk_widget_get_child_requisition, since we want (for
1174        * backwards compatibility reasons) the realization here to
1175        * be affected by the usize of the entry, if set
1176        */
1177       gint x, y, width, height;
1178
1179       get_widget_window_size (entry, &x, &y, &width, &height);
1180
1181       gdk_window_move_resize (widget->window,
1182                               x, y, width, height);
1183
1184       get_text_area_size (entry, &x, &y, &width, &height);
1185
1186       gdk_window_move_resize (entry->text_area,
1187                               x, y, width, height);
1188
1189       gtk_entry_recompute (entry);
1190     }
1191 }
1192
1193 static void
1194 gtk_entry_draw_frame (GtkWidget *widget)
1195 {
1196   gint x = 0, y = 0;
1197   gint width, height;
1198   gboolean interior_focus;
1199   gint focus_width;
1200
1201   gtk_widget_style_get (widget,
1202                         "interior-focus", &interior_focus,
1203                         "focus-line-width", &focus_width,
1204                         NULL);
1205
1206   gdk_window_get_size (widget->window, &width, &height);
1207
1208   if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
1209     {
1210       x += focus_width;
1211       y += focus_width;
1212       width -= 2 * focus_width;
1213       height -= 2 * focus_width;
1214     }
1215
1216   gtk_paint_shadow (widget->style, widget->window,
1217                     GTK_STATE_NORMAL, GTK_SHADOW_IN,
1218                     NULL, widget, "entry",
1219                     x, y, width, height);
1220
1221   if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
1222     {
1223       x -= focus_width;
1224       y -= focus_width;
1225       width += 2 * focus_width;
1226       height += 2 * focus_width;
1227
1228       gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
1229                        NULL, widget, "entry",
1230                        0, 0, width, height);
1231     }
1232 }
1233
1234 static gint
1235 gtk_entry_expose (GtkWidget      *widget,
1236                   GdkEventExpose *event)
1237 {
1238   GtkEntry *entry = GTK_ENTRY (widget);
1239
1240   if (widget->window == event->window)
1241     gtk_entry_draw_frame (widget);
1242   else if (entry->text_area == event->window)
1243     {
1244       gtk_entry_draw_text (GTK_ENTRY (widget));
1245
1246       if ((entry->visible || entry->invisible_char != 0) &&
1247           GTK_WIDGET_HAS_FOCUS (widget) &&
1248           entry->selection_bound == entry->current_pos && entry->cursor_visible)
1249         gtk_entry_draw_cursor (GTK_ENTRY (widget), CURSOR_STANDARD);
1250
1251       if (entry->dnd_position != -1)
1252         gtk_entry_draw_cursor (GTK_ENTRY (widget), CURSOR_DND);
1253     }
1254
1255   return FALSE;
1256 }
1257
1258 static gint
1259 gtk_entry_button_press (GtkWidget      *widget,
1260                         GdkEventButton *event)
1261 {
1262   GtkEntry *entry = GTK_ENTRY (widget);
1263   GtkEditable *editable = GTK_EDITABLE (widget);
1264   gint tmp_pos;
1265   gint sel_start, sel_end;
1266
1267   if (event->window != entry->text_area ||
1268       (entry->button && event->button != entry->button))
1269     return FALSE;
1270
1271   entry->button = event->button;
1272
1273   if (!GTK_WIDGET_HAS_FOCUS (widget))
1274     {
1275       entry->in_click = TRUE;
1276       gtk_widget_grab_focus (widget);
1277       entry->in_click = FALSE;
1278     }
1279
1280   tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
1281
1282   if (event->button == 1)
1283     {
1284       gboolean have_selection = gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end);
1285
1286       if (event->state & GDK_SHIFT_MASK)
1287         {
1288           gtk_entry_reset_im_context (entry);
1289
1290           if (!have_selection) /* select from the current position to the clicked position */
1291             sel_start = sel_end = entry->current_pos;
1292
1293           if (tmp_pos > sel_start && tmp_pos < sel_end)
1294             {
1295               /* Truncate current selection */
1296               gtk_entry_set_positions (entry, tmp_pos, -1);
1297             }
1298           else
1299             {
1300               gboolean extend_to_left;
1301               gint start, end;
1302
1303               /* Figure out what click selects and extend current selection */
1304               switch (event->type)
1305                 {
1306                 case GDK_BUTTON_PRESS:
1307                   gtk_entry_set_positions (entry, tmp_pos, tmp_pos);
1308                   break;
1309
1310                 case GDK_2BUTTON_PRESS:
1311                   gtk_entry_select_word (entry);
1312                   break;
1313
1314                 case GDK_3BUTTON_PRESS:
1315                   gtk_entry_select_line (entry);
1316                   break;
1317
1318                 default:
1319                   break;
1320                 }
1321
1322               start = MIN (entry->current_pos, entry->selection_bound);
1323               start = MIN (sel_start, start);
1324
1325               end = MAX (entry->current_pos, entry->selection_bound);
1326               end = MAX (sel_end, end);
1327
1328               if (tmp_pos == sel_start || tmp_pos == sel_end)
1329                 extend_to_left = (tmp_pos == start);
1330               else
1331                 extend_to_left = (end == sel_end);
1332
1333               if (extend_to_left)
1334                 gtk_entry_set_positions (entry, start, end);
1335               else
1336                 gtk_entry_set_positions (entry, end, start);
1337             }
1338         }
1339       else /* no shift key */
1340         switch (event->type)
1341         {
1342         case GDK_BUTTON_PRESS:
1343           if (have_selection && tmp_pos >= sel_start && tmp_pos <= sel_end)
1344             {
1345               /* Click inside the selection - we'll either start a drag, or
1346                * clear the selection
1347                */
1348
1349               entry->in_drag = TRUE;
1350               entry->drag_start_x = event->x + entry->scroll_offset;
1351               entry->drag_start_y = event->y + entry->scroll_offset;
1352             }
1353           else
1354             gtk_editable_set_position (editable, tmp_pos);
1355
1356           break;
1357
1358
1359         case GDK_2BUTTON_PRESS:
1360           /* We ALWAYS receive a GDK_BUTTON_PRESS immediately before
1361            * receiving a GDK_2BUTTON_PRESS so we need to reset
1362            * entry->in_drag which may have been set above
1363            */
1364           entry->in_drag = FALSE;
1365           gtk_entry_select_word (entry);
1366           break;
1367
1368         case GDK_3BUTTON_PRESS:
1369           /* We ALWAYS receive a GDK_BUTTON_PRESS immediately before
1370            * receiving a GDK_3BUTTON_PRESS so we need to reset
1371            * entry->in_drag which may have been set above
1372            */
1373           entry->in_drag = FALSE;
1374           gtk_entry_select_line (entry);
1375           break;
1376
1377         default:
1378           break;
1379         }
1380
1381       return TRUE;
1382     }
1383   else if (event->button == 2 && event->type == GDK_BUTTON_PRESS && entry->editable)
1384     {
1385       gtk_editable_select_region (editable, tmp_pos, tmp_pos);
1386       gtk_entry_paste (entry, GDK_SELECTION_PRIMARY);
1387
1388       return TRUE;
1389     }
1390   else if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
1391     {
1392       gtk_entry_do_popup (entry, event);
1393       entry->button = 0;        /* Don't wait for release, since the menu will gtk_grab_add */
1394
1395       return TRUE;
1396     }
1397
1398   return FALSE;
1399 }
1400
1401 static gint
1402 gtk_entry_button_release (GtkWidget      *widget,
1403                           GdkEventButton *event)
1404 {
1405   GtkEntry *entry = GTK_ENTRY (widget);
1406
1407   if (event->window != entry->text_area || entry->button != event->button)
1408     return FALSE;
1409
1410   if (entry->in_drag)
1411     {
1412       gint tmp_pos = gtk_entry_find_position (entry, entry->drag_start_x);
1413
1414       gtk_editable_set_position (GTK_EDITABLE (entry), tmp_pos);
1415
1416       entry->in_drag = 0;
1417     }
1418
1419   entry->button = 0;
1420
1421   gtk_entry_update_primary_selection (entry);
1422
1423   return TRUE;
1424 }
1425
1426 static gint
1427 gtk_entry_motion_notify (GtkWidget      *widget,
1428                          GdkEventMotion *event)
1429 {
1430   GtkEntry *entry = GTK_ENTRY (widget);
1431   gint tmp_pos;
1432
1433   if (entry->mouse_cursor_obscured)
1434     {
1435       GdkCursor *cursor;
1436
1437       cursor = gdk_cursor_new (GDK_XTERM);
1438       gdk_window_set_cursor (entry->text_area, cursor);
1439       gdk_cursor_unref (cursor);
1440       entry->mouse_cursor_obscured = FALSE;
1441     }
1442
1443   if (event->window != entry->text_area || entry->button !=1)
1444     return FALSE;
1445
1446   if (event->is_hint || (entry->text_area != event->window))
1447     gdk_window_get_pointer (entry->text_area, NULL, NULL, NULL);
1448
1449   if (entry->in_drag)
1450     {
1451       if (gtk_drag_check_threshold (widget,
1452                                     entry->drag_start_x, entry->drag_start_y,
1453                                     event->x + entry->scroll_offset, event->y))
1454         {
1455           GdkDragContext *context;
1456           GtkTargetList *target_list = gtk_target_list_new (target_table, G_N_ELEMENTS (target_table));
1457           guint actions = entry->editable ? GDK_ACTION_COPY | GDK_ACTION_MOVE : GDK_ACTION_COPY;
1458
1459           context = gtk_drag_begin (widget, target_list, actions,
1460                           entry->button, (GdkEvent *)event);
1461
1462
1463           entry->in_drag = FALSE;
1464           entry->button = 0;
1465
1466           gtk_target_list_unref (target_list);
1467           gtk_drag_set_icon_default (context);
1468         }
1469     }
1470   else
1471     {
1472       gint height;
1473       gdk_window_get_size (entry->text_area, NULL, &height);
1474
1475       if (event->y < 0)
1476         tmp_pos = 0;
1477       else if (event->y >= height)
1478         tmp_pos = entry->text_length;
1479       else
1480         tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
1481
1482       gtk_entry_set_positions (entry, tmp_pos, -1);
1483     }
1484
1485   return TRUE;
1486 }
1487
1488 static void
1489 set_invisible_cursor (GdkWindow *window)
1490 {
1491   GdkBitmap *empty_bitmap;
1492   GdkCursor *cursor;
1493   GdkColor useless;
1494   char invisible_cursor_bits[] = { 0x0 };
1495
1496   useless.red = useless.green = useless.blue = 0;
1497   useless.pixel = 0;
1498
1499   empty_bitmap = gdk_bitmap_create_from_data (window,
1500                                               invisible_cursor_bits,
1501                                               1, 1);
1502
1503   cursor = gdk_cursor_new_from_pixmap (empty_bitmap,
1504                                        empty_bitmap,
1505                                        &useless,
1506                                        &useless, 0, 0);
1507
1508   gdk_window_set_cursor (window, cursor);
1509
1510   gdk_cursor_unref (cursor);
1511
1512   g_object_unref (empty_bitmap);
1513 }
1514
1515 static void
1516 gtk_entry_obscure_mouse_cursor (GtkEntry *entry)
1517 {
1518   if (entry->mouse_cursor_obscured)
1519     return;
1520
1521   set_invisible_cursor (entry->text_area);
1522
1523   entry->mouse_cursor_obscured = TRUE;
1524 }
1525
1526 static gint
1527 gtk_entry_key_press (GtkWidget   *widget,
1528                      GdkEventKey *event)
1529 {
1530   GtkEntry *entry = GTK_ENTRY (widget);
1531
1532   gtk_entry_pend_cursor_blink (entry);
1533
1534   if (entry->editable)
1535     {
1536       if (gtk_im_context_filter_keypress (entry->im_context, event))
1537         {
1538           gtk_entry_obscure_mouse_cursor (entry);
1539           entry->need_im_reset = TRUE;
1540           return TRUE;
1541         }
1542     }
1543
1544   if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
1545     /* Activate key bindings
1546      */
1547     return TRUE;
1548
1549   return FALSE;
1550 }
1551
1552 static gint
1553 gtk_entry_key_release (GtkWidget   *widget,
1554                        GdkEventKey *event)
1555 {
1556   GtkEntry *entry = GTK_ENTRY (widget);
1557
1558   if (!entry->editable)
1559     {
1560       if (gtk_im_context_filter_keypress (entry->im_context, event))
1561         {
1562           entry->need_im_reset = TRUE;
1563           return TRUE;
1564         }
1565     }
1566
1567   return GTK_WIDGET_CLASS (parent_class)->key_release_event (widget, event);
1568 }
1569
1570 static gint
1571 gtk_entry_focus_in (GtkWidget     *widget,
1572                     GdkEventFocus *event)
1573 {
1574   GtkEntry *entry = GTK_ENTRY (widget);
1575
1576   gtk_widget_queue_draw (widget);
1577
1578   entry->need_im_reset = TRUE;
1579   gtk_im_context_focus_in (entry->im_context);
1580
1581   g_signal_connect (gdk_keymap_get_default (),
1582                     "direction_changed",
1583                     G_CALLBACK (gtk_entry_keymap_direction_changed), entry);
1584
1585   gtk_entry_check_cursor_blink (entry);
1586
1587   return FALSE;
1588 }
1589
1590 static gint
1591 gtk_entry_focus_out (GtkWidget     *widget,
1592                      GdkEventFocus *event)
1593 {
1594   GtkEntry *entry = GTK_ENTRY (widget);
1595
1596   gtk_widget_queue_draw (widget);
1597
1598   entry->need_im_reset = TRUE;
1599   gtk_im_context_focus_out (entry->im_context);
1600
1601   gtk_entry_check_cursor_blink (entry);
1602
1603   g_signal_handlers_disconnect_by_func (gdk_keymap_get_default (),
1604                                         gtk_entry_keymap_direction_changed,
1605                                         entry);
1606
1607   return FALSE;
1608 }
1609
1610 static void
1611 gtk_entry_grab_focus (GtkWidget        *widget)
1612 {
1613   GtkEntry *entry = GTK_ENTRY (widget);
1614   gboolean select_on_focus;
1615
1616   GTK_WIDGET_CLASS (parent_class)->grab_focus (widget);
1617
1618   g_object_get (G_OBJECT (gtk_settings_get_default ()),
1619                 "gtk-entry-select-on-focus",
1620                 &select_on_focus,
1621                 NULL);
1622
1623   if (select_on_focus && entry->editable && !entry->in_click)
1624     gtk_editable_select_region (GTK_EDITABLE (widget), 0, -1);
1625 }
1626
1627 static void
1628 gtk_entry_direction_changed (GtkWidget        *widget,
1629                              GtkTextDirection  previous_dir)
1630 {
1631   GtkEntry *entry = GTK_ENTRY (widget);
1632
1633   gtk_entry_recompute (entry);
1634
1635   GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
1636 }
1637
1638 static void
1639 gtk_entry_state_changed (GtkWidget      *widget,
1640                          GtkStateType    previous_state)
1641 {
1642   GtkEntry *entry = GTK_ENTRY (widget);
1643
1644   if (GTK_WIDGET_REALIZED (widget))
1645     {
1646       gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1647       gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1648     }
1649
1650   if (!GTK_WIDGET_IS_SENSITIVE (widget))
1651     {
1652       /* Clear any selection */
1653       gtk_editable_select_region (GTK_EDITABLE (entry), entry->current_pos, entry->current_pos);
1654     }
1655
1656   gtk_widget_queue_clear (widget);
1657 }
1658
1659 /* GtkEditable method implementations
1660  */
1661 static void
1662 gtk_entry_insert_text (GtkEditable *editable,
1663                        const gchar *new_text,
1664                        gint         new_text_length,
1665                        gint        *position)
1666 {
1667   GtkEntry *entry = GTK_ENTRY (editable);
1668   gchar buf[64];
1669   gchar *text;
1670
1671   if (*position < 0 || *position > entry->text_length)
1672     *position = entry->text_length;
1673
1674   g_object_ref (G_OBJECT (editable));
1675
1676   if (new_text_length <= 63)
1677     text = buf;
1678   else
1679     text = g_new (gchar, new_text_length + 1);
1680
1681   text[new_text_length] = '\0';
1682   strncpy (text, new_text, new_text_length);
1683
1684   g_signal_emit_by_name (editable, "insert_text", text, new_text_length, position);
1685
1686   if (new_text_length > 63)
1687     g_free (text);
1688
1689   g_object_unref (G_OBJECT (editable));
1690 }
1691
1692 static void
1693 gtk_entry_delete_text (GtkEditable *editable,
1694                        gint         start_pos,
1695                        gint         end_pos)
1696 {
1697   GtkEntry *entry = GTK_ENTRY (editable);
1698
1699   if (end_pos < 0 || end_pos > entry->text_length)
1700     end_pos = entry->text_length;
1701   if (start_pos < 0)
1702     start_pos = 0;
1703   if (start_pos > end_pos)
1704     start_pos = end_pos;
1705
1706   g_object_ref (G_OBJECT (editable));
1707
1708   g_signal_emit_by_name (editable, "delete_text", start_pos, end_pos);
1709
1710   g_object_unref (G_OBJECT (editable));
1711 }
1712
1713 static gchar *
1714 gtk_entry_get_chars      (GtkEditable   *editable,
1715                           gint           start_pos,
1716                           gint           end_pos)
1717 {
1718   GtkEntry *entry = GTK_ENTRY (editable);
1719   gint start_index, end_index;
1720
1721   if (end_pos < 0)
1722     end_pos = entry->text_length;
1723
1724   start_pos = MIN (entry->text_length, start_pos);
1725   end_pos = MIN (entry->text_length, end_pos);
1726
1727   start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
1728   end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
1729
1730   return g_strndup (entry->text + start_index, end_index - start_index);
1731 }
1732
1733 static void
1734 gtk_entry_real_set_position (GtkEditable *editable,
1735                              gint         position)
1736 {
1737   GtkEntry *entry = GTK_ENTRY (editable);
1738
1739   if (position < 0 || position > entry->text_length)
1740     position = entry->text_length;
1741
1742   if (position != entry->current_pos ||
1743       position != entry->selection_bound)
1744     {
1745       gtk_entry_reset_im_context (entry);
1746       gtk_entry_set_positions (entry, position, position);
1747     }
1748 }
1749
1750 static gint
1751 gtk_entry_get_position (GtkEditable *editable)
1752 {
1753   return GTK_ENTRY (editable)->current_pos;
1754 }
1755
1756 static void
1757 gtk_entry_set_selection_bounds (GtkEditable *editable,
1758                                 gint         start,
1759                                 gint         end)
1760 {
1761   GtkEntry *entry = GTK_ENTRY (editable);
1762
1763   if (start < 0)
1764     start = entry->text_length;
1765   if (end < 0)
1766     end = entry->text_length;
1767
1768   gtk_entry_reset_im_context (entry);
1769
1770   gtk_entry_set_positions (entry,
1771                            MIN (end, entry->text_length),
1772                            MIN (start, entry->text_length));
1773
1774   gtk_entry_update_primary_selection (entry);
1775 }
1776
1777 static gboolean
1778 gtk_entry_get_selection_bounds (GtkEditable *editable,
1779                                 gint        *start,
1780                                 gint        *end)
1781 {
1782   GtkEntry *entry = GTK_ENTRY (editable);
1783
1784   *start = entry->selection_bound;
1785   *end = entry->current_pos;
1786
1787   return (entry->selection_bound != entry->current_pos);
1788 }
1789
1790 static void
1791 gtk_entry_style_set     (GtkWidget      *widget,
1792                          GtkStyle       *previous_style)
1793 {
1794   GtkEntry *entry = GTK_ENTRY (widget);
1795
1796   if (previous_style && GTK_WIDGET_REALIZED (widget))
1797     {
1798       gtk_entry_recompute (entry);
1799
1800       gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1801       gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1802
1803       gtk_entry_realize_cursor_gc (entry);
1804     }
1805 }
1806
1807 /* GtkCellEditable method implementations
1808  */
1809 static void
1810 gtk_cell_editable_entry_activated (GtkEntry *entry, gpointer data)
1811 {
1812   gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));
1813   gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
1814 }
1815
1816 static gboolean
1817 gtk_cell_editable_key_press_event (GtkEntry    *entry,
1818                                    GdkEventKey *key_event,
1819                                    gpointer     data)
1820 {
1821     if (key_event->keyval == GDK_Escape)
1822       {
1823         entry->editing_canceled = TRUE;
1824         gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));
1825         gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
1826
1827         return TRUE;
1828       }
1829
1830     return FALSE;
1831 }
1832
1833 static void
1834 gtk_entry_start_editing (GtkCellEditable *cell_editable,
1835                          GdkEvent        *event)
1836 {
1837   GTK_ENTRY (cell_editable)->is_cell_renderer = TRUE;
1838
1839   g_signal_connect (G_OBJECT (cell_editable), "activate",
1840                     G_CALLBACK (gtk_cell_editable_entry_activated), NULL);
1841   g_signal_connect (G_OBJECT (cell_editable), "key_press_event",
1842                     G_CALLBACK (gtk_cell_editable_key_press_event), NULL);
1843 }
1844
1845 /* Default signal handlers
1846  */
1847 static void
1848 gtk_entry_real_insert_text (GtkEditable *editable,
1849                             const gchar *new_text,
1850                             gint         new_text_length,
1851                             gint        *position)
1852 {
1853   gint index;
1854   gint n_chars;
1855
1856   GtkEntry *entry = GTK_ENTRY (editable);
1857
1858   if (new_text_length < 0)
1859     new_text_length = strlen (new_text);
1860
1861   n_chars = g_utf8_strlen (new_text, new_text_length);
1862   if (entry->text_max_length > 0 && n_chars + entry->text_length > entry->text_max_length)
1863     {
1864       gdk_beep ();
1865       n_chars = entry->text_max_length - entry->text_length;
1866       new_text_length = g_utf8_offset_to_pointer (new_text, n_chars) - new_text;
1867     }
1868
1869   if (new_text_length + entry->n_bytes + 1 > entry->text_size)
1870     {
1871       while (new_text_length + entry->n_bytes + 1 > entry->text_size)
1872         {
1873           if (entry->text_size == 0)
1874             entry->text_size = MIN_SIZE;
1875           else
1876             {
1877               if (2 * (guint)entry->text_size < MAX_SIZE &&
1878                   2 * (guint)entry->text_size > entry->text_size)
1879                 entry->text_size *= 2;
1880               else
1881                 {
1882                   entry->text_size = MAX_SIZE;
1883                   new_text_length = entry->text_size - entry->n_bytes - 1;
1884                   break;
1885                 }
1886             }
1887         }
1888
1889       entry->text = g_realloc (entry->text, entry->text_size);
1890     }
1891
1892   index = g_utf8_offset_to_pointer (entry->text, *position) - entry->text;
1893
1894   g_memmove (entry->text + index + new_text_length, entry->text + index, entry->n_bytes - index);
1895   memcpy (entry->text + index, new_text, new_text_length);
1896
1897   entry->n_bytes += new_text_length;
1898   entry->text_length += n_chars;
1899
1900   /* NUL terminate for safety and convenience */
1901   entry->text[entry->n_bytes] = '\0';
1902
1903   if (entry->current_pos > *position)
1904     entry->current_pos += n_chars;
1905
1906   if (entry->selection_bound > *position)
1907     entry->selection_bound += n_chars;
1908
1909   *position += n_chars;
1910
1911   gtk_entry_recompute (entry);
1912
1913   g_signal_emit_by_name (editable, "changed");
1914   g_object_notify (G_OBJECT (editable), "text");
1915 }
1916
1917 static void
1918 gtk_entry_real_delete_text (GtkEditable *editable,
1919                             gint         start_pos,
1920                             gint         end_pos)
1921 {
1922   GtkEntry *entry = GTK_ENTRY (editable);
1923
1924   if (start_pos < 0)
1925     start_pos = 0;
1926   if (end_pos < 0 || end_pos > entry->text_length)
1927     end_pos = entry->text_length;
1928
1929   if (start_pos < end_pos)
1930     {
1931       gint start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
1932       gint end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
1933
1934       g_memmove (entry->text + start_index, entry->text + end_index, entry->n_bytes + 1 - end_index);
1935       entry->text_length -= (end_pos - start_pos);
1936       entry->n_bytes -= (end_index - start_index);
1937
1938       if (entry->current_pos > start_pos)
1939         entry->current_pos -= MIN (entry->current_pos, end_pos) - start_pos;
1940
1941       if (entry->selection_bound > start_pos)
1942         entry->selection_bound -= MIN (entry->selection_bound, end_pos) - start_pos;
1943       /* We might have deleted the selection
1944        */
1945       gtk_entry_update_primary_selection (entry);
1946
1947       gtk_entry_recompute (entry);
1948
1949       g_signal_emit_by_name (editable, "changed");
1950       g_object_notify (G_OBJECT (editable), "text");
1951     }
1952 }
1953
1954 /* Compute the X position for an offset that corresponds to the "more important
1955  * cursor position for that offset. We use this when trying to guess to which
1956  * end of the selection we should go to when the user hits the left or
1957  * right arrow key.
1958  */
1959 static gint
1960 get_better_cursor_x (GtkEntry *entry,
1961                      gint      offset)
1962 {
1963   GtkTextDirection keymap_direction =
1964     (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
1965     GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
1966   GtkTextDirection widget_direction = gtk_widget_get_direction (GTK_WIDGET (entry));
1967   gboolean split_cursor;
1968
1969   PangoLayout *layout = gtk_entry_ensure_layout (entry, TRUE);
1970   gint index = g_utf8_offset_to_pointer (entry->text, offset) - entry->text;
1971
1972   PangoRectangle strong_pos, weak_pos;
1973
1974   g_object_get (gtk_widget_get_settings (GTK_WIDGET (entry)),
1975                 "gtk-split-cursor", &split_cursor,
1976                 NULL);
1977
1978   pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
1979
1980   if (split_cursor)
1981     return strong_pos.x / PANGO_SCALE;
1982   else
1983     return (keymap_direction == widget_direction) ? strong_pos.x / PANGO_SCALE : weak_pos.x / PANGO_SCALE;
1984 }
1985
1986 static void
1987 gtk_entry_move_cursor (GtkEntry       *entry,
1988                        GtkMovementStep step,
1989                        gint            count,
1990                        gboolean        extend_selection)
1991 {
1992   gint new_pos = entry->current_pos;
1993
1994   gtk_entry_reset_im_context (entry);
1995
1996   if (entry->current_pos != entry->selection_bound && !extend_selection)
1997     {
1998       /* If we have a current selection and aren't extending it, move to the
1999        * start/or end of the selection as appropriate
2000        */
2001       switch (step)
2002         {
2003         case GTK_MOVEMENT_VISUAL_POSITIONS:
2004           {
2005             gint current_x = get_better_cursor_x (entry, entry->current_pos);
2006             gint bound_x = get_better_cursor_x (entry, entry->selection_bound);
2007
2008             if (count < 0)
2009               new_pos = current_x < bound_x ? entry->current_pos : entry->selection_bound;
2010             else
2011               new_pos = current_x > bound_x ? entry->current_pos : entry->selection_bound;
2012
2013             break;
2014           }
2015         case GTK_MOVEMENT_LOGICAL_POSITIONS:
2016         case GTK_MOVEMENT_WORDS:
2017           if (count < 0)
2018             new_pos = MIN (entry->current_pos, entry->selection_bound);
2019           else
2020             new_pos = MAX (entry->current_pos, entry->selection_bound);
2021           break;
2022         case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
2023         case GTK_MOVEMENT_PARAGRAPH_ENDS:
2024         case GTK_MOVEMENT_BUFFER_ENDS:
2025           new_pos = count < 0 ? 0 : entry->text_length;
2026           break;
2027         case GTK_MOVEMENT_DISPLAY_LINES:
2028         case GTK_MOVEMENT_PARAGRAPHS:
2029         case GTK_MOVEMENT_PAGES:
2030           break;
2031         }
2032     }
2033   else
2034     {
2035       switch (step)
2036         {
2037         case GTK_MOVEMENT_LOGICAL_POSITIONS:
2038           new_pos = gtk_entry_move_logically (entry, new_pos, count);
2039           break;
2040         case GTK_MOVEMENT_VISUAL_POSITIONS:
2041           new_pos = gtk_entry_move_visually (entry, new_pos, count);
2042           break;
2043         case GTK_MOVEMENT_WORDS:
2044           while (count > 0)
2045             {
2046               new_pos = gtk_entry_move_forward_word (entry, new_pos);
2047               count--;
2048             }
2049           while (count < 0)
2050             {
2051               new_pos = gtk_entry_move_backward_word (entry, new_pos);
2052               count++;
2053             }
2054           break;
2055         case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
2056         case GTK_MOVEMENT_PARAGRAPH_ENDS:
2057         case GTK_MOVEMENT_BUFFER_ENDS:
2058           new_pos = count < 0 ? 0 : entry->text_length;
2059           break;
2060         case GTK_MOVEMENT_DISPLAY_LINES:
2061         case GTK_MOVEMENT_PARAGRAPHS:
2062         case GTK_MOVEMENT_PAGES:
2063           break;
2064         }
2065     }
2066
2067   if (extend_selection)
2068     gtk_editable_select_region (GTK_EDITABLE (entry), entry->selection_bound, new_pos);
2069   else
2070     gtk_editable_set_position (GTK_EDITABLE (entry), new_pos);
2071
2072   gtk_entry_pend_cursor_blink (entry);
2073 }
2074
2075 static void
2076 gtk_entry_insert_at_cursor (GtkEntry    *entry,
2077                             const gchar *str)
2078 {
2079   GtkEditable *editable = GTK_EDITABLE (entry);
2080   gint pos = entry->current_pos;
2081
2082   if (entry->editable)
2083     {
2084       gtk_entry_reset_im_context (entry);
2085
2086       gtk_editable_insert_text (editable, str, -1, &pos);
2087       gtk_editable_set_position (editable, pos);
2088     }
2089 }
2090
2091 static void
2092 gtk_entry_delete_from_cursor (GtkEntry       *entry,
2093                               GtkDeleteType   type,
2094                               gint            count)
2095 {
2096   GtkEditable *editable = GTK_EDITABLE (entry);
2097   gint start_pos = entry->current_pos;
2098   gint end_pos = entry->current_pos;
2099
2100   gtk_entry_reset_im_context (entry);
2101
2102   if (!entry->editable)
2103     return;
2104
2105   if (entry->selection_bound != entry->current_pos)
2106     {
2107       gtk_editable_delete_selection (editable);
2108       return;
2109     }
2110
2111   switch (type)
2112     {
2113     case GTK_DELETE_CHARS:
2114       end_pos = gtk_entry_move_logically (entry, entry->current_pos, count);
2115       gtk_editable_delete_text (editable, MIN (start_pos, end_pos), MAX (start_pos, end_pos));
2116       break;
2117     case GTK_DELETE_WORDS:
2118       if (count < 0)
2119         {
2120           /* Move to end of current word, or if not on a word, end of previous word */
2121           end_pos = gtk_entry_move_backward_word (entry, end_pos);
2122           end_pos = gtk_entry_move_forward_word (entry, end_pos);
2123         }
2124       else if (count > 0)
2125         {
2126           /* Move to beginning of current word, or if not on a word, begining of next word */
2127           start_pos = gtk_entry_move_forward_word (entry, start_pos);
2128           start_pos = gtk_entry_move_backward_word (entry, start_pos);
2129         }
2130
2131       /* Fall through */
2132     case GTK_DELETE_WORD_ENDS:
2133       while (count < 0)
2134         {
2135           start_pos = gtk_entry_move_backward_word (entry, start_pos);
2136           count++;
2137         }
2138       while (count > 0)
2139         {
2140           end_pos = gtk_entry_move_forward_word (entry, end_pos);
2141           count--;
2142         }
2143       gtk_editable_delete_text (editable, start_pos, end_pos);
2144       break;
2145     case GTK_DELETE_DISPLAY_LINE_ENDS:
2146     case GTK_DELETE_PARAGRAPH_ENDS:
2147       if (count < 0)
2148         gtk_editable_delete_text (editable, 0, entry->current_pos);
2149       else
2150         gtk_editable_delete_text (editable, entry->current_pos, -1);
2151       break;
2152     case GTK_DELETE_DISPLAY_LINES:
2153     case GTK_DELETE_PARAGRAPHS:
2154       gtk_editable_delete_text (editable, 0, -1);
2155       break;
2156     case GTK_DELETE_WHITESPACE:
2157       gtk_entry_delete_whitespace (entry);
2158       break;
2159     }
2160
2161   gtk_entry_pend_cursor_blink (entry);
2162 }
2163
2164 static void
2165 gtk_entry_copy_clipboard (GtkEntry *entry)
2166 {
2167   GtkEditable *editable = GTK_EDITABLE (entry);
2168   gint start, end;
2169
2170   if (gtk_editable_get_selection_bounds (editable, &start, &end))
2171     {
2172       gchar *str = gtk_entry_get_public_chars (entry, start, end);
2173       gtk_clipboard_set_text (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD), str, -1);
2174       g_free (str);
2175     }
2176 }
2177
2178 static void
2179 gtk_entry_cut_clipboard (GtkEntry *entry)
2180 {
2181   GtkEditable *editable = GTK_EDITABLE (entry);
2182   gint start, end;
2183
2184   gtk_entry_copy_clipboard (entry);
2185
2186   if (entry->editable)
2187     {
2188       if (gtk_editable_get_selection_bounds (editable, &start, &end))
2189         gtk_editable_delete_text (editable, start, end);
2190     }
2191 }
2192
2193 static void
2194 gtk_entry_paste_clipboard (GtkEntry *entry)
2195 {
2196   if (entry->editable)
2197     gtk_entry_paste (entry, GDK_NONE);
2198 }
2199
2200 static void
2201 gtk_entry_toggle_overwrite (GtkEntry *entry)
2202 {
2203   entry->overwrite_mode = !entry->overwrite_mode;
2204 }
2205
2206 static void
2207 gtk_entry_select_all (GtkEntry *entry)
2208 {
2209   gtk_entry_select_line (entry);
2210 }
2211
2212 static void
2213 gtk_entry_real_activate (GtkEntry *entry)
2214 {
2215   GtkWindow *window;
2216   GtkWidget *toplevel;
2217   GtkWidget *widget;
2218
2219   widget = GTK_WIDGET (entry);
2220
2221   if (entry->activates_default)
2222     {
2223       toplevel = gtk_widget_get_toplevel (widget);
2224       if (GTK_IS_WINDOW (toplevel))
2225         {
2226           window = GTK_WINDOW (toplevel);
2227
2228           if (window &&
2229               widget != window->default_widget &&
2230               !(!window->default_widget && widget == window->focus_widget))
2231             gtk_window_activate_default (window);
2232         }
2233     }
2234 }
2235
2236 static void
2237 gtk_entry_keymap_direction_changed (GdkKeymap *keymap,
2238                                     GtkEntry  *entry)
2239 {
2240   gtk_entry_queue_draw (entry);
2241 }
2242
2243 /* IM Context Callbacks
2244  */
2245
2246 static void
2247 gtk_entry_commit_cb (GtkIMContext *context,
2248                      const gchar  *str,
2249                      GtkEntry     *entry)
2250 {
2251   gtk_entry_enter_text (entry, str);
2252 }
2253
2254 static void
2255 gtk_entry_preedit_changed_cb (GtkIMContext *context,
2256                               GtkEntry     *entry)
2257 {
2258   gchar *preedit_string;
2259   gint cursor_pos;
2260
2261   gtk_im_context_get_preedit_string (entry->im_context,
2262                                      &preedit_string, NULL,
2263                                      &cursor_pos);
2264   entry->preedit_length = strlen (preedit_string);
2265   cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1));
2266   entry->preedit_cursor = cursor_pos;
2267   g_free (preedit_string);
2268
2269   gtk_entry_recompute (entry);
2270 }
2271
2272 static gboolean
2273 gtk_entry_retrieve_surrounding_cb (GtkIMContext *context,
2274                                GtkEntry     *entry)
2275 {
2276   gtk_im_context_set_surrounding (context,
2277                                   entry->text,
2278                                   entry->n_bytes,
2279                                   g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text);
2280
2281   return TRUE;
2282 }
2283
2284 static gboolean
2285 gtk_entry_delete_surrounding_cb (GtkIMContext *slave,
2286                                  gint          offset,
2287                                  gint          n_chars,
2288                                  GtkEntry     *entry)
2289 {
2290   gtk_editable_delete_text (GTK_EDITABLE (entry),
2291                             entry->current_pos + offset,
2292                             entry->current_pos + offset + n_chars);
2293
2294   return TRUE;
2295 }
2296
2297 /* Internal functions
2298  */
2299
2300 /* Used for im_commit_cb and inserting Unicode chars */
2301 static void
2302 gtk_entry_enter_text (GtkEntry       *entry,
2303                       const gchar    *str)
2304 {
2305   GtkEditable *editable = GTK_EDITABLE (entry);
2306   gint tmp_pos;
2307
2308   if (gtk_editable_get_selection_bounds (editable, NULL, NULL))
2309     gtk_editable_delete_selection (editable);
2310   else
2311     {
2312       if (entry->overwrite_mode)
2313         gtk_entry_delete_from_cursor (entry, GTK_DELETE_CHARS, 1);
2314     }
2315
2316   tmp_pos = entry->current_pos;
2317   gtk_editable_insert_text (editable, str, strlen (str), &tmp_pos);
2318   gtk_editable_set_position (editable, tmp_pos);
2319 }
2320
2321 /* All changes to entry->current_pos and entry->selection_bound
2322  * should go through this function.
2323  */
2324 static void
2325 gtk_entry_set_positions (GtkEntry *entry,
2326                          gint      current_pos,
2327                          gint      selection_bound)
2328 {
2329   gboolean changed = FALSE;
2330
2331   g_object_freeze_notify (G_OBJECT (entry));
2332
2333   if (current_pos != -1 &&
2334       entry->current_pos != current_pos)
2335     {
2336       entry->current_pos = current_pos;
2337       changed = TRUE;
2338
2339       g_object_notify (G_OBJECT (entry), "cursor_position");
2340     }
2341
2342   if (selection_bound != -1 &&
2343       entry->selection_bound != selection_bound)
2344     {
2345       entry->selection_bound = selection_bound;
2346       changed = TRUE;
2347
2348       g_object_notify (G_OBJECT (entry), "selection_bound");
2349     }
2350
2351   g_object_thaw_notify (G_OBJECT (entry));
2352
2353   if (changed)
2354     gtk_entry_recompute (entry);
2355 }
2356
2357 static void
2358 gtk_entry_reset_layout (GtkEntry *entry)
2359 {
2360   if (entry->cached_layout)
2361     {
2362       g_object_unref (G_OBJECT (entry->cached_layout));
2363       entry->cached_layout = NULL;
2364     }
2365 }
2366
2367 static void
2368 update_im_cursor_location (GtkEntry *entry)
2369 {
2370   GdkRectangle area;
2371   gint strong_x;
2372   gint strong_xoffset;
2373   gint x, y, area_width, area_height;
2374
2375   gtk_entry_get_cursor_locations (entry, CURSOR_STANDARD, &strong_x, NULL)
2376 ;
2377   get_text_area_size (entry, &x, &y, &area_width, &area_height);
2378
2379   strong_xoffset = strong_x - entry->scroll_offset;
2380   if (strong_xoffset < 0)
2381     {
2382       strong_xoffset = 0;
2383     }
2384   else if (strong_xoffset > area_width)
2385     {
2386       strong_xoffset = area_width;
2387     }
2388   area.x = x + strong_xoffset;
2389   area.y = y + area_height;
2390   area.width = area_width;
2391   area.height = area_height;
2392
2393   gtk_im_context_set_cursor_location (entry->im_context, &area);
2394 }
2395
2396 static gboolean
2397 recompute_idle_func (gpointer data)
2398 {
2399   GtkEntry *entry;
2400
2401   GDK_THREADS_ENTER ();
2402
2403   entry = GTK_ENTRY (data);
2404
2405   gtk_entry_adjust_scroll (entry);
2406   gtk_entry_queue_draw (entry);
2407
2408   entry->recompute_idle = FALSE;
2409
2410   update_im_cursor_location (entry);
2411
2412   GDK_THREADS_LEAVE ();
2413
2414   return FALSE;
2415 }
2416
2417 static void
2418 gtk_entry_recompute (GtkEntry *entry)
2419 {
2420   gtk_entry_reset_layout (entry);
2421   gtk_entry_check_cursor_blink (entry);
2422
2423   if (!entry->recompute_idle)
2424     {
2425       entry->recompute_idle = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 15, /* between resize and redraw */
2426                                                recompute_idle_func, entry, NULL);
2427     }
2428 }
2429
2430 static void
2431 append_char (GString *str,
2432              gunichar ch,
2433              gint     count)
2434 {
2435   gint i;
2436   gint char_len;
2437   gchar buf[7];
2438
2439   char_len = g_unichar_to_utf8 (ch, buf);
2440
2441   i = 0;
2442   while (i < count)
2443     {
2444       g_string_append_len (str, buf, char_len);
2445       ++i;
2446     }
2447 }
2448
2449 static PangoLayout *
2450 gtk_entry_create_layout (GtkEntry *entry,
2451                          gboolean  include_preedit)
2452 {
2453   PangoLayout *layout = gtk_widget_create_pango_layout (GTK_WIDGET (entry), NULL);
2454   PangoAttrList *tmp_attrs = pango_attr_list_new ();
2455
2456   gchar *preedit_string = NULL;
2457   gint preedit_length = 0;
2458   PangoAttrList *preedit_attrs = NULL;
2459
2460   pango_layout_set_single_paragraph_mode (layout, TRUE);
2461
2462   if (include_preedit)
2463     {
2464       gtk_im_context_get_preedit_string (entry->im_context,
2465                                          &preedit_string, &preedit_attrs, NULL);
2466       preedit_length = entry->preedit_length;
2467     }
2468
2469   if (preedit_length)
2470     {
2471       GString *tmp_string = g_string_new (NULL);
2472
2473       gint cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text;
2474
2475       if (entry->visible)
2476         {
2477           g_string_prepend_len (tmp_string, entry->text, entry->n_bytes);
2478           g_string_insert (tmp_string, cursor_index, preedit_string);
2479         }
2480       else
2481         {
2482           gint ch_len;
2483           gint preedit_len_chars;
2484           gunichar invisible_char;
2485
2486           ch_len = g_utf8_strlen (entry->text, entry->n_bytes);
2487           preedit_len_chars = g_utf8_strlen (preedit_string, -1);
2488           ch_len += preedit_len_chars;
2489
2490           if (entry->invisible_char != 0)
2491             invisible_char = entry->invisible_char;
2492           else
2493             invisible_char = ' '; /* just pick a char */
2494
2495           append_char (tmp_string, invisible_char, ch_len);
2496
2497           /* Fix cursor index to point to invisible char corresponding
2498            * to the preedit, fix preedit_length to be the length of
2499            * the invisible chars representing the preedit
2500            */
2501           cursor_index =
2502             g_utf8_offset_to_pointer (tmp_string->str, entry->current_pos) -
2503             tmp_string->str;
2504           preedit_length =
2505             preedit_len_chars *
2506             g_unichar_to_utf8 (invisible_char, NULL);
2507         }
2508
2509       pango_layout_set_text (layout, tmp_string->str, tmp_string->len);
2510
2511       pango_attr_list_splice (tmp_attrs, preedit_attrs,
2512                               cursor_index, preedit_length);
2513
2514       g_string_free (tmp_string, TRUE);
2515     }
2516   else
2517     {
2518       if (entry->visible)
2519         {
2520           pango_layout_set_text (layout, entry->text, entry->n_bytes);
2521         }
2522       else
2523         {
2524           GString *str = g_string_new (NULL);
2525           gunichar invisible_char;
2526
2527           if (entry->invisible_char != 0)
2528             invisible_char = entry->invisible_char;
2529           else
2530             invisible_char = ' '; /* just pick a char */
2531
2532           append_char (str, invisible_char, entry->text_length);
2533           pango_layout_set_text (layout, str->str, str->len);
2534           g_string_free (str, TRUE);
2535         }
2536     }
2537
2538   pango_layout_set_attributes (layout, tmp_attrs);
2539
2540   if (preedit_string)
2541     g_free (preedit_string);
2542   if (preedit_attrs)
2543     pango_attr_list_unref (preedit_attrs);
2544
2545   pango_attr_list_unref (tmp_attrs);
2546
2547   return layout;
2548 }
2549
2550 static PangoLayout *
2551 gtk_entry_ensure_layout (GtkEntry *entry,
2552                          gboolean  include_preedit)
2553 {
2554   if (entry->preedit_length > 0 &&
2555       !include_preedit != !entry->cache_includes_preedit)
2556     gtk_entry_reset_layout (entry);
2557
2558   if (!entry->cached_layout)
2559     {
2560       entry->cached_layout = gtk_entry_create_layout (entry, include_preedit);
2561       entry->cache_includes_preedit = include_preedit;
2562     }
2563
2564   return entry->cached_layout;
2565 }
2566
2567 static void
2568 get_layout_position (GtkEntry *entry,
2569                      gint     *x,
2570                      gint     *y)
2571 {
2572   PangoLayout *layout;
2573   PangoRectangle logical_rect;
2574   gint area_width, area_height;
2575   gint y_pos;
2576   PangoLayoutLine *line;
2577
2578   layout = gtk_entry_ensure_layout (entry, TRUE);
2579
2580   get_text_area_size (entry, NULL, NULL, &area_width, &area_height);
2581
2582   area_height = PANGO_SCALE * (area_height - 2 * INNER_BORDER);
2583
2584   line = pango_layout_get_lines (layout)->data;
2585   pango_layout_line_get_extents (line, NULL, &logical_rect);
2586
2587   /* Align primarily for locale's ascent/descent */
2588   y_pos = ((area_height - entry->ascent - entry->descent) / 2 +
2589            entry->ascent + logical_rect.y);
2590
2591   /* Now see if we need to adjust to fit in actual drawn string */
2592   if (logical_rect.height > area_height)
2593     y_pos = (area_height - logical_rect.height) / 2;
2594   else if (y_pos < 0)
2595     y_pos = 0;
2596   else if (y_pos + logical_rect.height > area_height)
2597     y_pos = area_height - logical_rect.height;
2598
2599   y_pos = INNER_BORDER + y_pos / PANGO_SCALE;
2600
2601   if (x)
2602     *x = INNER_BORDER - entry->scroll_offset;
2603
2604   if (y)
2605     *y = y_pos;
2606 }
2607
2608 static void
2609 gtk_entry_draw_text (GtkEntry *entry)
2610 {
2611   GtkWidget *widget;
2612   PangoLayoutLine *line;
2613
2614   if (!entry->visible && entry->invisible_char == 0)
2615     return;
2616
2617   if (GTK_WIDGET_DRAWABLE (entry))
2618     {
2619       PangoLayout *layout = gtk_entry_ensure_layout (entry, TRUE);
2620       gint area_width, area_height;
2621       gint x, y;
2622       gint start_pos, end_pos;
2623
2624       widget = GTK_WIDGET (entry);
2625
2626       get_layout_position (entry, &x, &y);
2627
2628       get_text_area_size (entry, NULL, NULL, &area_width, &area_height);
2629
2630       gtk_paint_flat_box (widget->style, entry->text_area,
2631                           GTK_WIDGET_STATE(widget), GTK_SHADOW_NONE,
2632                           NULL, widget, "entry_bg",
2633                           0, 0, area_width, area_height);
2634
2635       gdk_draw_layout (entry->text_area, widget->style->text_gc [widget->state],
2636                        x, y,
2637                        layout);
2638
2639       if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_pos, &end_pos))
2640         {
2641           gint *ranges;
2642           gint n_ranges, i;
2643           PangoRectangle logical_rect;
2644           const gchar *text = pango_layout_get_text (layout);
2645           gint start_index = g_utf8_offset_to_pointer (text, start_pos) - text;
2646           gint end_index = g_utf8_offset_to_pointer (text, end_pos) - text;
2647           GdkRegion *clip_region = gdk_region_new ();
2648           GdkGC *text_gc;
2649           GdkGC *selection_gc;
2650
2651           line = pango_layout_get_lines (layout)->data;
2652
2653           pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
2654
2655           pango_layout_get_extents (layout, NULL, &logical_rect);
2656
2657           if (GTK_WIDGET_HAS_FOCUS (entry))
2658             {
2659               selection_gc = widget->style->base_gc [GTK_STATE_SELECTED];
2660               text_gc = widget->style->text_gc [GTK_STATE_SELECTED];
2661             }
2662           else
2663             {
2664               selection_gc = widget->style->base_gc [GTK_STATE_ACTIVE];
2665               text_gc = widget->style->text_gc [GTK_STATE_ACTIVE];
2666             }
2667
2668           for (i=0; i < n_ranges; i++)
2669             {
2670               GdkRectangle rect;
2671
2672               rect.x = INNER_BORDER - entry->scroll_offset + ranges[2*i] / PANGO_SCALE;
2673               rect.y = y;
2674               rect.width = (ranges[2*i + 1] - ranges[2*i]) / PANGO_SCALE;
2675               rect.height = logical_rect.height / PANGO_SCALE;
2676
2677               gdk_draw_rectangle (entry->text_area, selection_gc, TRUE,
2678                                   rect.x, rect.y, rect.width, rect.height);
2679
2680               gdk_region_union_with_rect (clip_region, &rect);
2681             }
2682
2683           gdk_gc_set_clip_region (text_gc, clip_region);
2684           gdk_draw_layout (entry->text_area, text_gc,
2685                            x, y,
2686                            layout);
2687           gdk_gc_set_clip_region (text_gc, NULL);
2688
2689           gdk_region_destroy (clip_region);
2690           g_free (ranges);
2691         }
2692     }
2693 }
2694
2695 static void
2696 gtk_entry_draw_cursor (GtkEntry  *entry,
2697                        CursorType type)
2698 {
2699   GtkTextDirection keymap_direction =
2700     (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
2701     GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
2702   GtkTextDirection widget_direction = gtk_widget_get_direction (GTK_WIDGET (entry));
2703
2704   if (GTK_WIDGET_DRAWABLE (entry))
2705     {
2706       GtkWidget *widget = GTK_WIDGET (entry);
2707       GdkRectangle cursor_location;
2708       gboolean split_cursor;
2709
2710       gint xoffset = INNER_BORDER - entry->scroll_offset;
2711       gint strong_x, weak_x;
2712       gint text_area_height;
2713       GdkGC *gc1 = NULL;
2714       GdkGC *gc2 = NULL;
2715       GtkTextDirection dir1 = GTK_TEXT_DIR_NONE;
2716       GtkTextDirection dir2 = GTK_TEXT_DIR_NONE;
2717       gint x1 = 0;
2718       gint x2 = 0;
2719
2720       gdk_window_get_size (entry->text_area, NULL, &text_area_height);
2721
2722       gtk_entry_get_cursor_locations (entry, type, &strong_x, &weak_x);
2723
2724       g_object_get (gtk_widget_get_settings (widget),
2725                     "gtk-split-cursor", &split_cursor,
2726                     NULL);
2727
2728       dir1 = widget_direction;
2729
2730       if (split_cursor)
2731         {
2732           gc1 = entry->cursor_gc;
2733           x1 = strong_x;
2734
2735           if (weak_x != strong_x)
2736             {
2737               dir2 = (widget_direction == GTK_TEXT_DIR_LTR) ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR;
2738
2739               gc2 = widget->style->text_gc[GTK_STATE_NORMAL];
2740               x2 = weak_x;
2741             }
2742         }
2743       else
2744         {
2745           gc1 = entry->cursor_gc;
2746
2747           if (keymap_direction == widget_direction)
2748             x1 = strong_x;
2749           else
2750             x1 = weak_x;
2751         }
2752
2753       cursor_location.x = xoffset + x1;
2754       cursor_location.y = INNER_BORDER;
2755       cursor_location.width = 0;
2756       cursor_location.height = text_area_height - 2 * INNER_BORDER ;
2757
2758       _gtk_draw_insertion_cursor (widget, entry->text_area, gc1,
2759                                   &cursor_location, dir1,
2760                                   dir2 != GTK_TEXT_DIR_NONE);
2761
2762       if (dir2 != GTK_TEXT_DIR_NONE)
2763         {
2764           cursor_location.x = xoffset + x2;
2765           _gtk_draw_insertion_cursor (widget, entry->text_area, gc2,
2766                                       &cursor_location, dir2,
2767                                       TRUE);
2768         }
2769     }
2770 }
2771
2772 static void
2773 gtk_entry_queue_draw (GtkEntry *entry)
2774 {
2775   if (GTK_WIDGET_REALIZED (entry))
2776     gdk_window_invalidate_rect (entry->text_area, NULL, FALSE);
2777 }
2778
2779 static void
2780 gtk_entry_reset_im_context (GtkEntry *entry)
2781 {
2782   if (entry->need_im_reset)
2783     {
2784       entry->need_im_reset = 0;
2785       gtk_im_context_reset (entry->im_context);
2786     }
2787 }
2788
2789 static gint
2790 gtk_entry_find_position (GtkEntry *entry,
2791                          gint      x)
2792 {
2793   PangoLayout *layout;
2794   PangoLayoutLine *line;
2795   gint index;
2796   gint pos;
2797   gboolean trailing;
2798   gint cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text;
2799
2800   layout = gtk_entry_ensure_layout (entry, TRUE);
2801
2802   line = pango_layout_get_lines (layout)->data;
2803   pango_layout_line_x_to_index (line, x * PANGO_SCALE, &index, &trailing);
2804
2805   if (index >= cursor_index && entry->preedit_length)
2806     {
2807       if (index >= cursor_index + entry->preedit_length)
2808         index -= entry->preedit_length;
2809       else
2810         {
2811           index = cursor_index;
2812           trailing = 0;
2813         }
2814     }
2815
2816   pos = g_utf8_pointer_to_offset (entry->text, entry->text + index);
2817   pos += trailing;
2818
2819   return pos;
2820 }
2821
2822 static void
2823 gtk_entry_get_cursor_locations (GtkEntry   *entry,
2824                                 CursorType  type,
2825                                 gint       *strong_x,
2826                                 gint       *weak_x)
2827 {
2828   PangoLayout *layout = gtk_entry_ensure_layout (entry, TRUE);
2829   const gchar *text;
2830   PangoRectangle strong_pos, weak_pos;
2831   gint index;
2832
2833   if (type == CURSOR_STANDARD)
2834     {
2835       text = pango_layout_get_text (layout);
2836       index = g_utf8_offset_to_pointer (text, entry->current_pos + entry->preedit_cursor) - text;
2837     }
2838   else /* type == CURSOR_DND */
2839     {
2840       index = g_utf8_offset_to_pointer (entry->text, entry->dnd_position) - entry->text;
2841       if (entry->dnd_position > entry->current_pos)
2842         index += entry->preedit_length;
2843     }
2844
2845   pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
2846
2847   if (strong_x)
2848     *strong_x = strong_pos.x / PANGO_SCALE;
2849
2850   if (weak_x)
2851     *weak_x = weak_pos.x / PANGO_SCALE;
2852 }
2853
2854 static void
2855 gtk_entry_adjust_scroll (GtkEntry *entry)
2856 {
2857   gint min_offset, max_offset;
2858   gint text_area_width;
2859   gint strong_x, weak_x;
2860   gint strong_xoffset, weak_xoffset;
2861   PangoLayout *layout;
2862   PangoLayoutLine *line;
2863   PangoRectangle logical_rect;
2864
2865   if (!GTK_WIDGET_REALIZED (entry))
2866     return;
2867
2868   gdk_window_get_size (entry->text_area, &text_area_width, NULL);
2869   text_area_width -= 2 * INNER_BORDER;
2870
2871   layout = gtk_entry_ensure_layout (entry, TRUE);
2872   line = pango_layout_get_lines (layout)->data;
2873
2874   pango_layout_line_get_extents (line, NULL, &logical_rect);
2875
2876   /* Display as much text as we can */
2877
2878   if (gtk_widget_get_direction (GTK_WIDGET (entry)) == GTK_TEXT_DIR_LTR)
2879     {
2880       min_offset = 0;
2881       max_offset = MAX (min_offset, logical_rect.width / PANGO_SCALE - text_area_width);
2882     }
2883   else
2884     {
2885       max_offset = logical_rect.width / PANGO_SCALE - text_area_width;
2886       min_offset = MIN (0, max_offset);
2887     }
2888
2889   entry->scroll_offset = CLAMP (entry->scroll_offset, min_offset, max_offset);
2890
2891   /* And make sure cursors are on screen. Note that the cursor is
2892    * actually drawn one pixel into the INNER_BORDER space on
2893    * the right, when the scroll is at the utmost right. This
2894    * looks better to to me than confining the cursor inside the
2895    * border entirely, though it means that the cursor gets one
2896    * pixel closer to the the edge of the widget on the right than
2897    * on the left. This might need changing if one changed
2898    * INNER_BORDER from 2 to 1, as one would do on a
2899    * small-screen-real-estate display.
2900    *
2901    * We always make sure that the strong cursor is on screen, and
2902    * put the weak cursor on screen if possible.
2903    */
2904
2905   gtk_entry_get_cursor_locations (entry, CURSOR_STANDARD, &strong_x, &weak_x);
2906
2907   strong_xoffset = strong_x - entry->scroll_offset;
2908
2909   if (strong_xoffset < 0)
2910     {
2911       entry->scroll_offset += strong_xoffset;
2912       strong_xoffset = 0;
2913     }
2914   else if (strong_xoffset > text_area_width)
2915     {
2916       entry->scroll_offset += strong_xoffset - text_area_width;
2917       strong_xoffset = text_area_width;
2918     }
2919
2920   weak_xoffset = weak_x - entry->scroll_offset;
2921
2922   if (weak_xoffset < 0 && strong_xoffset - weak_xoffset <= text_area_width)
2923     {
2924       entry->scroll_offset += weak_xoffset;
2925     }
2926   else if (weak_xoffset > text_area_width &&
2927            strong_xoffset - (weak_xoffset - text_area_width) >= 0)
2928     {
2929       entry->scroll_offset += weak_xoffset - text_area_width;
2930     }
2931
2932   g_object_notify (G_OBJECT (entry), "scroll_offset");
2933 }
2934
2935 static gint
2936 gtk_entry_move_visually (GtkEntry *entry,
2937                          gint      start,
2938                          gint      count)
2939 {
2940   gint index;
2941   PangoLayout *layout = gtk_entry_ensure_layout (entry, FALSE);
2942   const gchar *text;
2943
2944   text = pango_layout_get_text (layout);
2945
2946   index = g_utf8_offset_to_pointer (text, start) - text;
2947
2948   while (count != 0)
2949     {
2950       int new_index, new_trailing;
2951       gboolean split_cursor;
2952       gboolean strong;
2953
2954       g_object_get (gtk_widget_get_settings (GTK_WIDGET (entry)),
2955                     "gtk-split-cursor", &split_cursor,
2956                     NULL);
2957
2958       if (split_cursor)
2959         strong = TRUE;
2960       else
2961         {
2962           GtkTextDirection keymap_direction =
2963             (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
2964             GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
2965
2966           strong = keymap_direction == gtk_widget_get_direction (GTK_WIDGET (entry));
2967         }
2968
2969       if (count > 0)
2970         {
2971           pango_layout_move_cursor_visually (layout, strong, index, 0, 1, &new_index, &new_trailing);
2972           count--;
2973         }
2974       else
2975         {
2976           pango_layout_move_cursor_visually (layout, strong, index, 0, -1, &new_index, &new_trailing);
2977           count++;
2978         }
2979
2980       if (new_index < 0 || new_index == G_MAXINT)
2981         break;
2982
2983       index = new_index;
2984
2985       while (new_trailing--)
2986         index = g_utf8_next_char (entry->text + new_index) - entry->text;
2987     }
2988
2989   return g_utf8_pointer_to_offset (text, text + index);
2990 }
2991
2992 static gint
2993 gtk_entry_move_logically (GtkEntry *entry,
2994                           gint      start,
2995                           gint      count)
2996 {
2997   gint new_pos = start;
2998
2999   /* Prevent any leak of information */
3000   if (!entry->visible)
3001     {
3002       new_pos = CLAMP (start + count, 0, entry->text_length);
3003     }
3004   else if (entry->text)
3005     {
3006       PangoLayout *layout = gtk_entry_ensure_layout (entry, FALSE);
3007       PangoLogAttr *log_attrs;
3008       gint n_attrs;
3009
3010       pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
3011
3012       while (count > 0 && new_pos < entry->text_length)
3013         {
3014           do
3015             new_pos++;
3016           while (new_pos < entry->text_length && !log_attrs[new_pos].is_cursor_position);
3017
3018           count--;
3019         }
3020       while (count < 0 && new_pos > 0)
3021         {
3022           do
3023             new_pos--;
3024           while (new_pos > 0 && !log_attrs[new_pos].is_cursor_position);
3025
3026           count++;
3027         }
3028
3029       g_free (log_attrs);
3030     }
3031
3032   return new_pos;
3033 }
3034
3035 static gint
3036 gtk_entry_move_forward_word (GtkEntry *entry,
3037                              gint      start)
3038 {
3039   gint new_pos = start;
3040
3041   /* Prevent any leak of information */
3042   if (!entry->visible)
3043     {
3044       new_pos = entry->text_length;
3045     }
3046   else if (entry->text && (new_pos < entry->text_length))
3047     {
3048       PangoLayout *layout = gtk_entry_ensure_layout (entry, FALSE);
3049       PangoLogAttr *log_attrs;
3050       gint n_attrs;
3051
3052       pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
3053
3054       /* Find the next word end */
3055       new_pos++;
3056       while (new_pos < n_attrs && !log_attrs[new_pos].is_word_end)
3057         new_pos++;
3058
3059       g_free (log_attrs);
3060     }
3061
3062   return new_pos;
3063 }
3064
3065
3066 static gint
3067 gtk_entry_move_backward_word (GtkEntry *entry,
3068                               gint      start)
3069 {
3070   gint new_pos = start;
3071
3072   /* Prevent any leak of information */
3073   if (!entry->visible)
3074     {
3075       new_pos = 0;
3076     }
3077   else if (entry->text && start > 0)
3078     {
3079       PangoLayout *layout = gtk_entry_ensure_layout (entry, FALSE);
3080       PangoLogAttr *log_attrs;
3081       gint n_attrs;
3082
3083       pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
3084
3085       new_pos = start - 1;
3086
3087       /* Find the previous word beginning */
3088       while (new_pos > 0 && !log_attrs[new_pos].is_word_start)
3089         new_pos--;
3090
3091       g_free (log_attrs);
3092     }
3093
3094   return new_pos;
3095 }
3096
3097 static void
3098 gtk_entry_delete_whitespace (GtkEntry *entry)
3099 {
3100   PangoLayout *layout = gtk_entry_ensure_layout (entry, FALSE);
3101   PangoLogAttr *log_attrs;
3102   gint n_attrs;
3103   gint start, end;
3104
3105   pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
3106
3107   start = end = entry->current_pos;
3108
3109   while (start > 0 && log_attrs[start-1].is_white)
3110     start--;
3111
3112   while (end < n_attrs && log_attrs[end].is_white)
3113     end++;
3114
3115   g_free (log_attrs);
3116
3117   if (start != end)
3118     gtk_editable_delete_text (GTK_EDITABLE (entry), start, end);
3119 }
3120
3121
3122 static void
3123 gtk_entry_select_word (GtkEntry *entry)
3124 {
3125   gint start_pos = gtk_entry_move_backward_word (entry, entry->current_pos);
3126   gint end_pos = gtk_entry_move_forward_word (entry, entry->current_pos);
3127
3128   gtk_editable_select_region (GTK_EDITABLE (entry), start_pos, end_pos);
3129 }
3130
3131 static void
3132 gtk_entry_select_line (GtkEntry *entry)
3133 {
3134   gtk_editable_select_region (GTK_EDITABLE (entry), 0, -1);
3135 }
3136
3137 /*
3138  * Like gtk_editable_get_chars, but if the editable is not
3139  * visible, return asterisks; also convert result to UTF-8.
3140  */
3141 static char *
3142 gtk_entry_get_public_chars (GtkEntry *entry,
3143                             gint      start,
3144                             gint      end)
3145 {
3146   if (end < 0)
3147     end = entry->text_length;
3148
3149   if (entry->visible)
3150     return gtk_editable_get_chars (GTK_EDITABLE (entry), start, end);
3151   else
3152     {
3153       gchar *str;
3154       gint i;
3155       gint n_chars = end - start;
3156
3157       str = g_malloc (n_chars + 1);
3158       for (i = 0; i < n_chars; i++)
3159         str[i] = '*';
3160       str[i] = '\0';
3161
3162       return str;
3163     }
3164
3165 }
3166
3167 static void
3168 paste_received (GtkClipboard *clipboard,
3169                 const gchar  *text,
3170                 gpointer      data)
3171 {
3172   GtkEntry *entry = GTK_ENTRY (data);
3173   GtkEditable *editable = GTK_EDITABLE (entry);
3174
3175   if (text)
3176     {
3177       gint pos, start, end;
3178
3179       if (gtk_editable_get_selection_bounds (editable, &start, &end))
3180         gtk_editable_delete_text (editable, start, end);
3181
3182       pos = entry->current_pos;
3183       gtk_editable_insert_text (editable, text, -1, &pos);
3184       gtk_editable_set_position (editable, pos);
3185     }
3186
3187   g_object_unref (G_OBJECT (entry));
3188 }
3189
3190 static void
3191 gtk_entry_paste (GtkEntry *entry,
3192                  GdkAtom   selection)
3193 {
3194   g_object_ref (G_OBJECT (entry));
3195   gtk_clipboard_request_text (gtk_clipboard_get (selection),
3196                               paste_received, entry);
3197 }
3198
3199 static void
3200 primary_get_cb (GtkClipboard     *clipboard,
3201                 GtkSelectionData *selection_data,
3202                 guint             info,
3203                 gpointer          data)
3204 {
3205   GtkEntry *entry = GTK_ENTRY (data);
3206   gint start, end;
3207
3208   if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end))
3209     {
3210       gchar *str = gtk_entry_get_public_chars (entry, start, end);
3211       gtk_selection_data_set_text (selection_data, str, -1);
3212       g_free (str);
3213     }
3214 }
3215
3216 static void
3217 primary_clear_cb (GtkClipboard *clipboard,
3218                   gpointer      data)
3219 {
3220   GtkEntry *entry = GTK_ENTRY (data);
3221
3222   gtk_editable_select_region (GTK_EDITABLE (entry), entry->current_pos, entry->current_pos);
3223 }
3224
3225 static void
3226 gtk_entry_update_primary_selection (GtkEntry *entry)
3227 {
3228   static const GtkTargetEntry targets[] = {
3229     { "UTF8_STRING", 0, 0 },
3230     { "STRING", 0, 0 },
3231     { "TEXT",   0, 0 },
3232     { "COMPOUND_TEXT", 0, 0 }
3233   };
3234
3235   GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
3236   gint start, end;
3237
3238   if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end))
3239     {
3240       if (!gtk_clipboard_set_with_owner (clipboard, targets, G_N_ELEMENTS (targets),
3241                                          primary_get_cb, primary_clear_cb, G_OBJECT (entry)))
3242         primary_clear_cb (clipboard, entry);
3243     }
3244   else
3245     {
3246       if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (entry))
3247         gtk_clipboard_clear (clipboard);
3248     }
3249 }
3250
3251 /* Public API
3252  */
3253
3254 GtkWidget*
3255 gtk_entry_new (void)
3256 {
3257   return GTK_WIDGET (gtk_type_new (GTK_TYPE_ENTRY));
3258 }
3259
3260 GtkWidget*
3261 gtk_entry_new_with_max_length (gint max)
3262 {
3263   GtkEntry *entry;
3264
3265   entry = gtk_type_new (GTK_TYPE_ENTRY);
3266   entry->text_max_length = max;
3267
3268   return GTK_WIDGET (entry);
3269 }
3270
3271 void
3272 gtk_entry_set_text (GtkEntry *entry,
3273                     const gchar *text)
3274 {
3275   gint tmp_pos;
3276
3277   g_return_if_fail (GTK_IS_ENTRY (entry));
3278   g_return_if_fail (text != NULL);
3279
3280   gtk_editable_delete_text (GTK_EDITABLE (entry), 0, -1);
3281
3282   tmp_pos = 0;
3283   gtk_editable_insert_text (GTK_EDITABLE (entry), text, strlen (text), &tmp_pos);
3284 }
3285
3286 void
3287 gtk_entry_append_text (GtkEntry *entry,
3288                        const gchar *text)
3289 {
3290   gint tmp_pos;
3291
3292   g_return_if_fail (GTK_IS_ENTRY (entry));
3293   g_return_if_fail (text != NULL);
3294
3295   tmp_pos = entry->text_length;
3296   gtk_editable_insert_text (GTK_EDITABLE (entry), text, -1, &tmp_pos);
3297 }
3298
3299 void
3300 gtk_entry_prepend_text (GtkEntry *entry,
3301                         const gchar *text)
3302 {
3303   gint tmp_pos;
3304
3305   g_return_if_fail (GTK_IS_ENTRY (entry));
3306   g_return_if_fail (text != NULL);
3307
3308   tmp_pos = 0;
3309   gtk_editable_insert_text (GTK_EDITABLE (entry), text, -1, &tmp_pos);
3310 }
3311
3312 void
3313 gtk_entry_set_position (GtkEntry *entry,
3314                         gint       position)
3315 {
3316   g_return_if_fail (GTK_IS_ENTRY (entry));
3317
3318   gtk_editable_set_position (GTK_EDITABLE (entry), position);
3319 }
3320
3321 void
3322 gtk_entry_set_visibility (GtkEntry *entry,
3323                           gboolean visible)
3324 {
3325   g_return_if_fail (GTK_IS_ENTRY (entry));
3326
3327   entry->visible = visible ? TRUE : FALSE;
3328   g_object_notify (G_OBJECT (entry), "visibility");
3329   gtk_entry_recompute (entry);
3330 }
3331
3332 /**
3333  * gtk_entry_get_visibility:
3334  * @entry: a #GtkEntry
3335  *
3336  * Retrieves whether the text in @entry is visible. See
3337  * gtk_entry_set_visibility().
3338  *
3339  * Return value: %TRUE if the text is currently visible
3340  **/
3341 gboolean
3342 gtk_entry_get_visibility (GtkEntry *entry)
3343 {
3344   g_return_val_if_fail (GTK_IS_ENTRY (entry), FALSE);
3345
3346   return entry->visible;
3347 }
3348
3349 /**
3350  * gtk_entry_set_invisible_char:
3351  * @entry: a #GtkEntry
3352  * @ch: a Unicode character
3353  *
3354  * Sets the character to use in place of the actual text when
3355  * gtk_entry_set_visibility() has been called to set text visibility
3356  * to %FALSE. i.e. this is the character used in "password mode" to
3357  * show the user how many characters have been typed. The default
3358  * invisible char is an asterisk ('*').  If you set the invisible char
3359  * to 0, then the user will get no feedback at all; there will be
3360  * no text on the screen as they type.
3361  *
3362  **/
3363 void
3364 gtk_entry_set_invisible_char (GtkEntry *entry,
3365                               gunichar  ch)
3366 {
3367   g_return_if_fail (GTK_IS_ENTRY (entry));
3368
3369   if (ch == entry->invisible_char)
3370     return;
3371
3372   entry->invisible_char = ch;
3373   g_object_notify (G_OBJECT (entry), "invisible_char");
3374   gtk_entry_recompute (entry);
3375 }
3376
3377 /**
3378  * gtk_entry_get_invisible_char:
3379  * @entry: a #GtkEntry
3380  *
3381  * Retrieves the character displayed in place of the real characters
3382  * for entries with visisbility set to false. See gtk_entry_set_invisible_char().
3383  *
3384  * Return value: the current invisible char, or 0, if the entry does not
3385  *               show invisible text at all.
3386  **/
3387 gunichar
3388 gtk_entry_get_invisible_char (GtkEntry *entry)
3389 {
3390   g_return_val_if_fail (GTK_IS_ENTRY (entry), 0);
3391
3392   return entry->invisible_char;
3393 }
3394
3395 void
3396 gtk_entry_set_editable (GtkEntry *entry,
3397                         gboolean  editable)
3398 {
3399   g_return_if_fail (GTK_IS_ENTRY (entry));
3400
3401   gtk_editable_set_editable (GTK_EDITABLE (entry), editable);
3402 }
3403
3404 G_CONST_RETURN gchar*
3405 gtk_entry_get_text (GtkEntry *entry)
3406 {
3407   g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL);
3408
3409   return entry->text;
3410 }
3411
3412 void
3413 gtk_entry_select_region  (GtkEntry       *entry,
3414                           gint            start,
3415                           gint            end)
3416 {
3417   gtk_editable_select_region (GTK_EDITABLE (entry), start, end);
3418 }
3419
3420 void
3421 gtk_entry_set_max_length (GtkEntry     *entry,
3422                           gint          max)
3423 {
3424   g_return_if_fail (GTK_IS_ENTRY (entry));
3425
3426   if (max > 0 && entry->text_length > max)
3427     gtk_editable_delete_text (GTK_EDITABLE (entry), max, -1);
3428
3429   entry->text_max_length = max;
3430   g_object_notify (G_OBJECT (entry), "max_length");
3431 }
3432
3433 /**
3434  * gtk_entry_get_max_length:
3435  * @entry: a #GtkEntry
3436  *
3437  * Retrieves the maximum allowed length of the text in
3438  * @entry. See gtk_entry_set_max_length().
3439  *
3440  * Return value: the maximum allowed number of characters
3441  *               in #GtkEntry, or 0 if there is no maximum.
3442  **/
3443 gint
3444 gtk_entry_get_max_length (GtkEntry *entry)
3445 {
3446   g_return_val_if_fail (GTK_IS_ENTRY (entry), 0);
3447
3448   return entry->text_max_length;
3449 }
3450
3451 /**
3452  * gtk_entry_set_activates_default:
3453  * @entry: a #GtkEntry
3454  * @setting: %TRUE to activate window's default widget on Enter keypress
3455  *
3456  * If @setting is %TRUE, pressing Enter in the @entry will activate the default
3457  * widget for the window containing the entry. This usually means that
3458  * the dialog box containing the entry will be closed, since the default
3459  * widget is usually one of the dialog buttons.
3460  *
3461  * (For experts: if @setting is %TRUE, the entry calls
3462  * gtk_window_activate_default() on the window containing the entry, in
3463  * the default handler for the "activate" signal.)
3464  *
3465  **/
3466 void
3467 gtk_entry_set_activates_default (GtkEntry *entry,
3468                                  gboolean  setting)
3469 {
3470   g_return_if_fail (GTK_IS_ENTRY (entry));
3471   setting = setting != FALSE;
3472
3473   if (setting != entry->activates_default)
3474     {
3475       entry->activates_default = setting;
3476       g_object_notify (G_OBJECT (entry), "activates_default");
3477     }
3478 }
3479
3480 /**
3481  * gtk_entry_get_activates_default:
3482  * @entry: a #GtkEntry
3483  *
3484  * Retrieves the value set by gtk_entry_set_activates_default().
3485  *
3486  * Return value: %TRUE if the entry will activate the default widget
3487  **/
3488 gboolean
3489 gtk_entry_get_activates_default (GtkEntry *entry)
3490 {
3491   g_return_val_if_fail (GTK_IS_ENTRY (entry), FALSE);
3492
3493   return entry->activates_default;
3494 }
3495
3496 /**
3497  * gtk_entry_set_width_chars:
3498  * @entry: a #GtkEntry
3499  * @n_chars: width in chars
3500  *
3501  * Changes the size request of the entry to be about the right size
3502  * for @n_chars characters. Note that it changes the size
3503  * <emphasis>request</emphasis>, the size can still be affected by
3504  * how you pack the widget into containers. If @n_chars is -1, the
3505  * size reverts to the default entry size.
3506  *
3507  **/
3508 void
3509 gtk_entry_set_width_chars (GtkEntry *entry,
3510                            gint      n_chars)
3511 {
3512   g_return_if_fail (GTK_IS_ENTRY (entry));
3513
3514   if (entry->width_chars != n_chars)
3515     {
3516       entry->width_chars = n_chars;
3517       g_object_notify (G_OBJECT (entry), "width_chars");
3518       gtk_widget_queue_resize (GTK_WIDGET (entry));
3519     }
3520 }
3521
3522 /**
3523  * gtk_entry_get_width_chars:
3524  * @entry: a #GtkEntry
3525  *
3526  * Gets the value set by gtk_entry_set_width_chars().
3527  *
3528  * Return value: number of chars to request space for, or negative if unset
3529  **/
3530 gint
3531 gtk_entry_get_width_chars (GtkEntry *entry)
3532 {
3533   g_return_val_if_fail (GTK_IS_ENTRY (entry), 0);
3534
3535   return entry->width_chars;
3536 }
3537
3538 /**
3539  * gtk_entry_set_has_frame:
3540  * @entry: a #GtkEntry
3541  * @setting: new value
3542  *
3543  * Sets whether the entry has a beveled frame around it.
3544  **/
3545 void
3546 gtk_entry_set_has_frame (GtkEntry *entry,
3547                          gboolean  setting)
3548 {
3549   g_return_if_fail (GTK_IS_ENTRY (entry));
3550
3551   setting = (setting != FALSE);
3552
3553   if (entry->has_frame == setting)
3554     return;
3555
3556   gtk_widget_queue_resize (GTK_WIDGET (entry));
3557   entry->has_frame = setting;
3558   g_object_notify (G_OBJECT (entry), "has_frame");
3559 }
3560
3561 /**
3562  * gtk_entry_get_has_frame:
3563  * @entry: a #GtkEntry
3564  *
3565  * Gets the value set by gtk_entry_set_has_frame().
3566  *
3567  * Return value: whether the entry has a beveled frame
3568  **/
3569 gboolean
3570 gtk_entry_get_has_frame (GtkEntry *entry)
3571 {
3572   g_return_val_if_fail (GTK_IS_ENTRY (entry), FALSE);
3573
3574   return entry->has_frame;
3575 }
3576
3577
3578 /**
3579  * gtk_entry_get_layout:
3580  * @entry: a #GtkEntry
3581  *
3582  * Gets the #PangoLayout used to display the entry.
3583  * The layout is useful to e.g. convert text positions to
3584  * pixel positions, in combination with gtk_entry_get_layout_offsets().
3585  * The returned layout is owned by the entry so need not be
3586  * freed by the caller.
3587  *
3588  * Keep in mind that the layout text may contain a preedit string, so
3589  * gtk_entry_layout_index_to_text_index() and
3590  * gtk_entry_text_index_to_layout_index() are needed to convert byte
3591  * indices in the layout to byte indices in the entry contents.
3592  *
3593  * Return value: the #PangoLayout for this entry
3594  **/
3595 PangoLayout*
3596 gtk_entry_get_layout (GtkEntry *entry)
3597 {
3598   PangoLayout *layout;
3599
3600   g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL);
3601
3602   layout = gtk_entry_ensure_layout (entry, TRUE);
3603
3604   return layout;
3605 }
3606
3607
3608 /**
3609  * gtk_entry_layout_index_to_text_index:
3610  * @entry: a #GtkEntry
3611  * @layout_index: byte index into the entry layout text
3612  *
3613  * Converts from a position in the entry contents (returned
3614  * by gtk_entry_get_text()) to a position in the
3615  * entry's #PangoLayout (returned by gtk_entry_get_layout(),
3616  * with text retrieved via pango_layout_get_text()).
3617  *
3618  * Return value: byte index into the entry contents
3619  **/
3620 gint
3621 gtk_entry_layout_index_to_text_index (GtkEntry *entry,
3622                                       gint      layout_index)
3623 {
3624   gint cursor_index;
3625
3626   g_return_val_if_fail (GTK_IS_ENTRY (entry), 0);
3627
3628   cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text;
3629
3630   if (layout_index >= cursor_index && entry->preedit_length)
3631     {
3632       if (layout_index >= cursor_index + entry->preedit_length)
3633         layout_index -= entry->preedit_length;
3634       else
3635         layout_index = cursor_index;
3636     }
3637
3638   return layout_index;
3639 }
3640
3641 /**
3642  * gtk_entry_text_index_to_layout_index:
3643  * @entry: a #GtkEntry
3644  * @text_index: byte index into the entry contents
3645  *
3646  * Converts from a position in the entry's #PangoLayout(returned by
3647  * gtk_entry_get_layout()) to a position in the entry contents
3648  * (returned by gtk_entry_get_text()).
3649  *
3650  * Return value: byte index into the entry layout text
3651  **/
3652 gint
3653 gtk_entry_text_index_to_layout_index (GtkEntry *entry,
3654                                       gint      text_index)
3655 {
3656   gint cursor_index;
3657   g_return_val_if_fail (GTK_IS_ENTRY (entry), 0);
3658
3659   cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text;
3660
3661   if (text_index > cursor_index)
3662     text_index += entry->preedit_length;
3663
3664   return text_index;
3665 }
3666
3667 /**
3668  * gtk_entry_get_layout_offsets:
3669  * @entry: a #GtkEntry
3670  * @x: location to store X offset of layout, or %NULL
3671  * @y: location to store Y offset of layout, or %NULL
3672  *
3673  *
3674  * Obtains the position of the #PangoLayout used to render text
3675  * in the entry, in widget coordinates. Useful if you want to line
3676  * up the text in an entry with some other text, e.g. when using the
3677  * entry to implement editable cells in a sheet widget.
3678  *
3679  * Also useful to convert mouse events into coordinates inside the
3680  * #PangoLayout, e.g. to take some action if some part of the entry text
3681  * is clicked.
3682  *
3683  * Note that as the user scrolls around in the entry the offsets will
3684  * change; you'll need to connect to the "notify::scroll_offset"
3685  * signal to track this. Remember when using the #PangoLayout
3686  * functions you need to convert to and from pixels using
3687  * PANGO_PIXELS() or #PANGO_SCALE.
3688  *
3689  * Keep in mind that the layout text may contain a preedit string, so
3690  * gtk_entry_layout_index_to_text_index() and
3691  * gtk_entry_text_index_to_layout_index() are needed to convert byte
3692  * indices in the layout to byte indices in the entry contents.
3693  *
3694  **/
3695 void
3696 gtk_entry_get_layout_offsets (GtkEntry *entry,
3697                               gint     *x,
3698                               gint     *y)
3699 {
3700   gint text_area_x, text_area_y;
3701
3702   g_return_if_fail (GTK_IS_ENTRY (entry));
3703
3704   /* this gets coords relative to text area */
3705   get_layout_position (entry, x, y);
3706
3707   /* convert to widget coords */
3708   get_text_area_size (entry, &text_area_x, &text_area_y, NULL, NULL);
3709
3710   if (x)
3711     *x += text_area_x;
3712
3713   if (y)
3714     *y += text_area_y;
3715 }
3716
3717 /* Quick hack of a popup menu
3718  */
3719 static void
3720 activate_cb (GtkWidget *menuitem,
3721              GtkEntry  *entry)
3722 {
3723   const gchar *signal = gtk_object_get_data (GTK_OBJECT (menuitem), "gtk-signal");
3724   gtk_signal_emit_by_name (GTK_OBJECT (entry), signal);
3725 }
3726
3727
3728 static gboolean
3729 gtk_entry_mnemonic_activate (GtkWidget *widget,
3730                              gboolean   group_cycling)
3731 {
3732   gtk_widget_grab_focus (widget);
3733   return TRUE;
3734 }
3735
3736 static void
3737 append_action_signal (GtkEntry     *entry,
3738                       GtkWidget    *menu,
3739                       const gchar  *stock_id,
3740                       const gchar  *signal,
3741                       gboolean      sensitive)
3742 {
3743   GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
3744
3745   gtk_object_set_data (GTK_OBJECT (menuitem), "gtk-signal", (char *)signal);
3746   gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
3747                       GTK_SIGNAL_FUNC (activate_cb), entry);
3748
3749   gtk_widget_set_sensitive (menuitem, sensitive);
3750
3751   gtk_widget_show (menuitem);
3752   gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
3753 }
3754
3755 static void
3756 popup_menu_detach (GtkWidget *attach_widget,
3757                    GtkMenu   *menu)
3758 {
3759   GTK_ENTRY (attach_widget)->popup_menu = NULL;
3760 }
3761
3762 static void
3763 popup_position_func (GtkMenu   *menu,
3764                      gint      *x,
3765                      gint      *y,
3766                      gboolean  *push_in,
3767                      gpointer   user_data)
3768 {
3769   GtkEntry *entry = GTK_ENTRY (user_data);
3770   GtkWidget *widget = GTK_WIDGET (entry);
3771   GtkRequisition req;
3772
3773   g_return_if_fail (GTK_WIDGET_REALIZED (entry));
3774
3775   gdk_window_get_origin (widget->window, x, y);
3776
3777   gtk_widget_size_request (entry->popup_menu, &req);
3778
3779   *x += widget->allocation.width / 2;
3780   *y += widget->allocation.height;
3781
3782   *x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
3783   *y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
3784 }
3785
3786
3787 static void
3788 unichar_chosen_func (const char *text,
3789                      gpointer    data)
3790 {
3791   GtkEntry *entry = GTK_ENTRY (data);
3792
3793   if (entry->editable)
3794     gtk_entry_enter_text (entry, text);
3795 }
3796
3797 typedef struct
3798 {
3799   GtkEntry *entry;
3800   gint button;
3801   guint time;
3802 } PopupInfo;
3803
3804 static void
3805 popup_targets_received (GtkClipboard     *clipboard,
3806                         GtkSelectionData *data,
3807                         gpointer          user_data)
3808 {
3809   PopupInfo *info = user_data;
3810   GtkEntry *entry = info->entry;
3811
3812   if (GTK_WIDGET_REALIZED (entry))
3813     {
3814       gboolean clipboard_contains_text = gtk_selection_data_targets_include_text (data);
3815       GtkWidget *menuitem;
3816       GtkWidget *submenu;
3817
3818       if (entry->popup_menu)
3819         gtk_widget_destroy (entry->popup_menu);
3820
3821       entry->popup_menu = gtk_menu_new ();
3822
3823       gtk_menu_attach_to_widget (GTK_MENU (entry->popup_menu),
3824                                  GTK_WIDGET (entry),
3825                                  popup_menu_detach);
3826
3827       append_action_signal (entry, entry->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
3828                             entry->editable && entry->current_pos != entry->selection_bound);
3829       append_action_signal (entry, entry->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
3830                             entry->current_pos != entry->selection_bound);
3831       append_action_signal (entry, entry->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
3832                             entry->editable && clipboard_contains_text);
3833
3834       menuitem = gtk_menu_item_new_with_label (_("Select All"));
3835       gtk_signal_connect_object (GTK_OBJECT (menuitem), "activate",
3836                                  GTK_SIGNAL_FUNC (gtk_entry_select_all), entry);
3837       gtk_widget_show (menuitem);
3838       gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem);
3839
3840       menuitem = gtk_separator_menu_item_new ();
3841       gtk_widget_show (menuitem);
3842       gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem);
3843
3844       menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
3845       gtk_widget_show (menuitem);
3846       submenu = gtk_menu_new ();
3847       gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
3848
3849       gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem);
3850
3851       gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (entry->im_context),
3852                                             GTK_MENU_SHELL (submenu));
3853
3854       menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode control character"));
3855       gtk_widget_show (menuitem);
3856
3857       submenu = gtk_menu_new ();
3858       gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
3859       gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem);
3860
3861       _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
3862                                                     unichar_chosen_func,
3863                                                     entry);
3864       if (!entry->editable)
3865         gtk_widget_set_sensitive (menuitem, FALSE);
3866
3867       gtk_signal_emit (GTK_OBJECT (entry),
3868                        signals[POPULATE_POPUP],
3869                        entry->popup_menu);
3870
3871
3872       if (info->button)
3873         gtk_menu_popup (GTK_MENU (entry->popup_menu), NULL, NULL,
3874                         NULL, NULL,
3875                         info->button, info->time);
3876       else
3877         {
3878           gtk_menu_popup (GTK_MENU (entry->popup_menu), NULL, NULL,
3879                           popup_position_func, entry,
3880                           info->button, info->time);
3881           _gtk_menu_shell_select_first (GTK_MENU_SHELL (entry->popup_menu));
3882         }
3883     }
3884
3885   g_object_unref (entry);
3886   g_free (info);
3887 }
3888
3889 static void
3890 gtk_entry_do_popup (GtkEntry       *entry,
3891                     GdkEventButton *event)
3892 {
3893   PopupInfo *info = g_new (PopupInfo, 1);
3894
3895   /* In order to know what entries we should make sensitive, we
3896    * ask for the current targets of the clipboard, and when
3897    * we get them, then we actually pop up the menu.
3898    */
3899   info->entry = g_object_ref (entry);
3900
3901   if (event)
3902     {
3903       info->button = event->button;
3904       info->time = event->time;
3905     }
3906   else
3907     {
3908       info->button = 0;
3909       info->time = gtk_get_current_event_time ();
3910     }
3911
3912   gtk_clipboard_request_contents (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
3913                                   gdk_atom_intern ("TARGETS", FALSE),
3914                                   popup_targets_received,
3915                                   info);
3916 }
3917
3918 static gboolean
3919 gtk_entry_popup_menu (GtkWidget *widget)
3920 {
3921   gtk_entry_do_popup (GTK_ENTRY (widget), NULL);
3922   return TRUE;
3923 }
3924
3925 static void
3926 gtk_entry_drag_leave (GtkWidget        *widget,
3927                       GdkDragContext   *context,
3928                       guint             time)
3929 {
3930   GtkEntry *entry = GTK_ENTRY (widget);
3931
3932   entry->dnd_position = -1;
3933   gtk_widget_queue_draw (widget);
3934 }
3935
3936 static gboolean
3937 gtk_entry_drag_drop  (GtkWidget        *widget,
3938                       GdkDragContext   *context,
3939                       gint              x,
3940                       gint              y,
3941                       guint             time)
3942 {
3943   GtkEntry *entry = GTK_ENTRY (widget);
3944   GdkAtom target = GDK_NONE;
3945
3946   if (entry->editable)
3947     target = gtk_drag_dest_find_target (widget, context, NULL);
3948
3949   if (target != GDK_NONE)
3950     gtk_drag_get_data (widget, context, target, time);
3951   else
3952     gtk_drag_finish (context, FALSE, FALSE, time);
3953
3954   return TRUE;
3955 }
3956
3957 static gboolean
3958 gtk_entry_drag_motion (GtkWidget        *widget,
3959                        GdkDragContext   *context,
3960                        gint              x,
3961                        gint              y,
3962                        guint             time)
3963 {
3964   GtkEntry *entry = GTK_ENTRY (widget);
3965   GtkWidget *source_widget;
3966   GdkDragAction suggested_action;
3967   gint new_position, old_position;
3968   gint sel1, sel2;
3969
3970   x -= widget->style->xthickness;
3971   y -= widget->style->ythickness;
3972
3973   old_position = entry->dnd_position;
3974   new_position = gtk_entry_find_position (entry, x + entry->scroll_offset);
3975
3976   if (entry->editable)
3977     {
3978       source_widget = gtk_drag_get_source_widget (context);
3979       suggested_action = context->suggested_action;
3980
3981       if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &sel1, &sel2) ||
3982           new_position < sel1 || new_position > sel2)
3983         {
3984           if (source_widget == widget)
3985             {
3986               /* Default to MOVE, unless the user has
3987                * pressed ctrl or alt to affect available actions
3988                */
3989               if ((context->actions & GDK_ACTION_MOVE) != 0)
3990                 suggested_action = GDK_ACTION_MOVE;
3991             }
3992
3993           entry->dnd_position = new_position;
3994         }
3995       else
3996         {
3997           if (source_widget == widget)
3998             suggested_action = 0;       /* Can't drop in selection where drag started */
3999
4000           entry->dnd_position = -1;
4001         }
4002     }
4003   else
4004     {
4005       /* Entry not editable */
4006       suggested_action = 0;
4007       entry->dnd_position = -1;
4008     }
4009
4010   gdk_drag_status (context, suggested_action, time);
4011
4012   if (entry->dnd_position != old_position)
4013     gtk_widget_queue_draw (widget);
4014
4015   return TRUE;
4016 }
4017
4018 static void
4019 gtk_entry_drag_data_received (GtkWidget        *widget,
4020                               GdkDragContext   *context,
4021                               gint              x,
4022                               gint              y,
4023                               GtkSelectionData *selection_data,
4024                               guint             info,
4025                               guint             time)
4026 {
4027   GtkEntry *entry = GTK_ENTRY (widget);
4028   GtkEditable *editable = GTK_EDITABLE (widget);
4029   gchar *str;
4030
4031   str = gtk_selection_data_get_text (selection_data);
4032
4033   if (str && entry->editable)
4034     {
4035       gint new_position;
4036       gint sel1, sel2;
4037
4038       new_position = gtk_entry_find_position (entry, x + entry->scroll_offset);
4039
4040       if (!gtk_editable_get_selection_bounds (editable, &sel1, &sel2) ||
4041           new_position < sel1 || new_position > sel2)
4042         {
4043           gtk_editable_insert_text (editable, str, -1, &new_position);
4044         }
4045       else
4046         {
4047           /* Replacing selection */
4048           gtk_editable_delete_text (editable, sel1, sel2);
4049           gtk_editable_insert_text (editable, str, -1, &sel1);
4050         }
4051
4052       g_free (str);
4053       gtk_drag_finish (context, TRUE, context->action == GDK_ACTION_MOVE, time);
4054     }
4055   else
4056     {
4057       /* Drag and drop didn't happen! */
4058       gtk_drag_finish (context, FALSE, FALSE, time);
4059     }
4060 }
4061
4062 static void
4063 gtk_entry_drag_data_get (GtkWidget        *widget,
4064                          GdkDragContext   *context,
4065                          GtkSelectionData *selection_data,
4066                          guint             info,
4067                          guint             time)
4068 {
4069   gint sel_start, sel_end;
4070
4071   GtkEditable *editable = GTK_EDITABLE (widget);
4072
4073   if (gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end))
4074     {
4075       gchar *str = gtk_editable_get_chars (editable, sel_start, sel_end);
4076
4077       gtk_selection_data_set_text (selection_data, str, -1);
4078
4079       g_free (str);
4080     }
4081
4082 }
4083
4084 static void
4085 gtk_entry_drag_data_delete (GtkWidget      *widget,
4086                             GdkDragContext *context)
4087 {
4088   gint sel_start, sel_end;
4089
4090   GtkEditable *editable = GTK_EDITABLE (widget);
4091
4092   if (GTK_ENTRY (widget)->editable &&
4093       gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end))
4094     gtk_editable_delete_text (editable, sel_start, sel_end);
4095 }
4096
4097 /* We display the cursor when
4098  *
4099  *  - the selection is empty, AND
4100  *  - the widget has focus
4101  */
4102
4103 #define CURSOR_ON_MULTIPLIER 0.66
4104 #define CURSOR_OFF_MULTIPLIER 0.34
4105 #define CURSOR_PEND_MULTIPLIER 1.0
4106
4107 static gboolean
4108 cursor_blinks (GtkEntry *entry)
4109 {
4110   GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (entry));
4111   gboolean blink;
4112
4113   if (GTK_WIDGET_HAS_FOCUS (entry) &&
4114       entry->selection_bound == entry->current_pos)
4115     {
4116       g_object_get (G_OBJECT (settings), "gtk-cursor-blink", &blink, NULL);
4117       return blink;
4118     }
4119   else
4120     return FALSE;
4121 }
4122
4123 static gint
4124 get_cursor_time (GtkEntry *entry)
4125 {
4126   GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (entry));
4127   gint time;
4128
4129   g_object_get (G_OBJECT (settings), "gtk-cursor-blink-time", &time, NULL);
4130
4131   return time;
4132 }
4133
4134 static void
4135 show_cursor (GtkEntry *entry)
4136 {
4137   if (!entry->cursor_visible)
4138     {
4139       entry->cursor_visible = TRUE;
4140
4141       if (GTK_WIDGET_HAS_FOCUS (entry) && entry->selection_bound == entry->current_pos)
4142         gtk_widget_queue_draw (GTK_WIDGET (entry));
4143     }
4144 }
4145
4146 static void
4147 hide_cursor (GtkEntry *entry)
4148 {
4149   if (entry->cursor_visible)
4150     {
4151       entry->cursor_visible = FALSE;
4152
4153       if (GTK_WIDGET_HAS_FOCUS (entry) && entry->selection_bound == entry->current_pos)
4154         gtk_widget_queue_draw (GTK_WIDGET (entry));
4155     }
4156 }
4157
4158 /*
4159  * Blink!
4160  */
4161 static gint
4162 blink_cb (gpointer data)
4163 {
4164   GtkEntry *entry;
4165
4166   GDK_THREADS_ENTER ();
4167
4168   entry = GTK_ENTRY (data);
4169
4170   g_assert (GTK_WIDGET_HAS_FOCUS (entry));
4171   g_assert (entry->selection_bound == entry->current_pos);
4172
4173   if (entry->cursor_visible)
4174     {
4175       hide_cursor (entry);
4176       entry->blink_timeout = gtk_timeout_add (get_cursor_time (entry) * CURSOR_OFF_MULTIPLIER,
4177                                               blink_cb,
4178                                               entry);
4179     }
4180   else
4181     {
4182       show_cursor (entry);
4183       entry->blink_timeout = gtk_timeout_add (get_cursor_time (entry) * CURSOR_ON_MULTIPLIER,
4184                                               blink_cb,
4185                                               entry);
4186     }
4187
4188   GDK_THREADS_LEAVE ();
4189
4190   /* Remove ourselves */
4191   return FALSE;
4192 }
4193
4194 static void
4195 gtk_entry_check_cursor_blink (GtkEntry *entry)
4196 {
4197   if (cursor_blinks (entry))
4198     {
4199       if (!entry->blink_timeout)
4200         {
4201           entry->blink_timeout = gtk_timeout_add (get_cursor_time (entry) * CURSOR_ON_MULTIPLIER,
4202                                                   blink_cb,
4203                                                   entry);
4204           show_cursor (entry);
4205         }
4206     }
4207   else
4208     {
4209       if (entry->blink_timeout)
4210         {
4211           gtk_timeout_remove (entry->blink_timeout);
4212           entry->blink_timeout = 0;
4213         }
4214
4215       entry->cursor_visible = TRUE;
4216     }
4217
4218 }
4219
4220 static void
4221 gtk_entry_pend_cursor_blink (GtkEntry *entry)
4222 {
4223   if (cursor_blinks (entry))
4224     {
4225       if (entry->blink_timeout != 0)
4226         gtk_timeout_remove (entry->blink_timeout);
4227
4228       entry->blink_timeout = gtk_timeout_add (get_cursor_time (entry) * CURSOR_PEND_MULTIPLIER,
4229                                               blink_cb,
4230                                               entry);
4231       show_cursor (entry);
4232     }
4233 }