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 Library 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  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library 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 1997-1999.  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 <ctype.h>
  28 #include <string.h>
  29 #include "gdk/gdkkeysyms.h"
  30 #include "gdk/gdki18n.h"
  31 #include "gtkentry.h"
  32 #include "gtkimmulticontext.h"
  33 #include "gtkmain.h"
  34 #include "gtkselection.h"
  35 #include "gtksignal.h"
  36 #include "gtkstyle.h"
  37
  38 #include <pango/pango.h>
  39 #include <glib-object.h>
  40
  41 #define MIN_ENTRY_WIDTH  150
  42 #define DRAW_TIMEOUT     20
  43 #define INNER_BORDER     2
  44
  45 /* Initial size of buffer, in bytes */
  46 #define MIN_SIZE 16
  47
  48 /* Maximum size of text buffer, in bytes */
  49 #define MAX_SIZE G_MAXUSHORT
  50
  51 enum {
  52   ARG_0,
  53   ARG_MAX_LENGTH,
  54   ARG_VISIBILITY
  55 };
  56
  57
  58 static void   gtk_entry_class_init           (GtkEntryClass    *klass);
  59 static void   gtk_entry_init                 (GtkEntry         *entry);
  60 static void   gtk_entry_set_arg              (GtkObject        *object,
  61                                               GtkArg           *arg,
  62                                               guint             arg_id);
  63 static void   gtk_entry_get_arg              (GtkObject        *object,
  64                                               GtkArg           *arg,
  65                                               guint             arg_id);
  66 static void   gtk_entry_finalize             (GObject          *object);
  67 static void   gtk_entry_realize              (GtkWidget        *widget);
  68 static void   gtk_entry_unrealize            (GtkWidget        *widget);
  69 static void   gtk_entry_draw_focus           (GtkWidget        *widget);
  70 static void   gtk_entry_size_request         (GtkWidget        *widget,
  71                                               GtkRequisition   *requisition);
  72 static void   gtk_entry_size_allocate        (GtkWidget        *widget,
  73                                               GtkAllocation    *allocation);
  74 static void   gtk_entry_draw                 (GtkWidget        *widget,
  75                                               GdkRectangle     *area);
  76 static gint   gtk_entry_expose               (GtkWidget        *widget,
  77                                               GdkEventExpose   *event);
  78 static gint   gtk_entry_button_press         (GtkWidget        *widget,
  79                                               GdkEventButton   *event);
  80 static gint   gtk_entry_button_release       (GtkWidget        *widget,
  81                                               GdkEventButton   *event);
  82 static gint   gtk_entry_motion_notify        (GtkWidget        *widget,
  83                                               GdkEventMotion   *event);
  84 static gint   gtk_entry_key_press            (GtkWidget        *widget,
  85                                               GdkEventKey      *event);
  86 static gint   gtk_entry_focus_in             (GtkWidget        *widget,
  87                                               GdkEventFocus    *event);
  88 static gint   gtk_entry_focus_out            (GtkWidget        *widget,
  89                                               GdkEventFocus    *event);
  90 static void   gtk_entry_draw_text            (GtkEntry         *entry);
  91 static void   gtk_entry_ensure_layout        (GtkEntry         *entry);
  92 static void   gtk_entry_draw_cursor          (GtkEntry         *entry);
  93 static void   gtk_entry_style_set            (GtkWidget        *widget,
  94                                               GtkStyle         *previous_style);
  95 static void   gtk_entry_direction_changed    (GtkWidget        *widget,
  96                                               GtkTextDirection  previous_dir);
  97 static void   gtk_entry_state_changed        (GtkWidget        *widget,
  98                                               GtkStateType      previous_state);
  99 static void   gtk_entry_queue_draw           (GtkEntry         *entry);
 100 static gint   gtk_entry_find_position        (GtkEntry         *entry,
 101                                               gint              x);
 102 static void   gtk_entry_get_cursor_locations (GtkEntry         *entry,
 103                                               gint             *strong_x,
 104                                               gint             *weak_x);
 105 static void   entry_adjust_scroll            (GtkEntry         *entry);
 106 static void   gtk_entry_insert_text          (GtkEditable      *editable,
 107                                               const gchar      *new_text,
 108                                               gint              new_text_length,
 109                                               gint             *position);
 110 static void   gtk_entry_delete_text          (GtkEditable      *editable,
 111                                               gint              start_pos,
 112                                               gint              end_pos);
 113 static void   gtk_entry_update_text          (GtkEditable      *editable,
 114                                               gint              start_pos,
 115                                               gint              end_pos);
 116 static gchar *gtk_entry_get_chars            (GtkEditable      *editable,
 117                                               gint              start_pos,
 118                                               gint              end_pos);
 119
 120 /* Binding actions */
 121 static void gtk_entry_move_cursor         (GtkEditable *editable,
 122                                            gint         x,
 123                                            gint         y);
 124 static void gtk_entry_move_word           (GtkEditable *editable,
 125                                            gint         n);
 126 static void gtk_entry_move_to_column      (GtkEditable *editable,
 127                                            gint         row);
 128 static void gtk_entry_kill_char           (GtkEditable *editable,
 129                                            gint         direction);
 130 static void gtk_entry_kill_word           (GtkEditable *editable,
 131                                            gint         direction);
 132 static void gtk_entry_kill_line           (GtkEditable *editable,
 133                                            gint         direction);
 134
 135 /* To be removed */
 136 static void gtk_move_forward_character    (GtkEntry          *entry);
 137 static void gtk_move_backward_character   (GtkEntry          *entry);
 138 static void gtk_move_forward_word         (GtkEntry          *entry);
 139 static void gtk_move_backward_word        (GtkEntry          *entry);
 140 static void gtk_move_beginning_of_line    (GtkEntry          *entry);
 141 static void gtk_move_end_of_line          (GtkEntry          *entry);
 142 static void gtk_delete_forward_character  (GtkEntry          *entry);
 143 static void gtk_delete_backward_character (GtkEntry          *entry);
 144 static void gtk_delete_forward_word       (GtkEntry          *entry);
 145 static void gtk_delete_backward_word      (GtkEntry          *entry);
 146 static void gtk_delete_line               (GtkEntry          *entry);
 147 static void gtk_delete_to_line_end        (GtkEntry          *entry);
 148 static void gtk_select_word               (GtkEntry          *entry,
 149                                            guint32            time);
 150 static void gtk_select_line               (GtkEntry          *entry,
 151                                            guint32            time);
 152
 153
 154 static void gtk_entry_set_selection       (GtkEditable       *editable,
 155                                            gint               start,
 156                                            gint               end);
 157
 158 static void gtk_entry_set_position_from_editable (GtkEditable *editable,
 159                                                   gint         position);
 160
 161 static void gtk_entry_commit_cb           (GtkIMContext      *context,
 162                                            const gchar       *str,
 163                                            GtkEntry          *entry);
 164
 165
 166 static GtkWidgetClass *parent_class = NULL;
 167 static GdkAtom ctext_atom = GDK_NONE;
 168
 169 static const GtkTextFunction control_keys[26] =
 170 {
 171   (GtkTextFunction)gtk_move_beginning_of_line,    /* a */
 172   (GtkTextFunction)gtk_move_backward_character,   /* b */
 173   (GtkTextFunction)gtk_editable_copy_clipboard,   /* c */
 174   (GtkTextFunction)gtk_delete_forward_character,  /* d */
 175   (GtkTextFunction)gtk_move_end_of_line,          /* e */
 176   (GtkTextFunction)gtk_move_forward_character,    /* f */
 177   NULL,                                           /* g */
 178   (GtkTextFunction)gtk_delete_backward_character, /* h */
 179   NULL,                                           /* i */
 180   NULL,                                           /* j */
 181   (GtkTextFunction)gtk_delete_to_line_end,        /* k */
 182   NULL,                                           /* l */
 183   NULL,                                           /* m */
 184   NULL,                                           /* n */
 185   NULL,                                           /* o */
 186   NULL,                                           /* p */
 187   NULL,                                           /* q */
 188   NULL,                                           /* r */
 189   NULL,                                           /* s */
 190   NULL,                                           /* t */
 191   (GtkTextFunction)gtk_delete_line,               /* u */
 192   (GtkTextFunction)gtk_editable_paste_clipboard,  /* v */
 193   (GtkTextFunction)gtk_delete_backward_word,      /* w */
 194   (GtkTextFunction)gtk_editable_cut_clipboard,    /* x */
 195   NULL,                                           /* y */
 196   NULL,                                           /* z */
 197 };
 198
 199 static const GtkTextFunction alt_keys[26] =
 200 {
 201   NULL,                                           /* a */
 202   (GtkTextFunction)gtk_move_backward_word,        /* b */
 203   NULL,                                           /* c */
 204   (GtkTextFunction)gtk_delete_forward_word,       /* d */
 205   NULL,                                           /* e */
 206   (GtkTextFunction)gtk_move_forward_word,         /* f */
 207   NULL,                                           /* g */
 208   NULL,                                           /* h */
 209   NULL,                                           /* i */
 210   NULL,                                           /* j */
 211   NULL,                                           /* k */
 212   NULL,                                           /* l */
 213   NULL,                                           /* m */
 214   NULL,                                           /* n */
 215   NULL,                                           /* o */
 216   NULL,                                           /* p */
 217   NULL,                                           /* q */
 218   NULL,                                           /* r */
 219   NULL,                                           /* s */
 220   NULL,                                           /* t */
 221   NULL,                                           /* u */
 222   NULL,                                           /* v */
 223   NULL,                                           /* w */
 224   NULL,                                           /* x */
 225   NULL,                                           /* y */
 226   NULL,                                           /* z */
 227 };
 228
 229
 230 GtkType
 231 gtk_entry_get_type (void)
 232 {
 233   static GtkType entry_type = 0;
 234
 235   if (!entry_type)
 236     {
 237       static const GtkTypeInfo entry_info =
 238       {
 239         "GtkEntry",
 240         sizeof (GtkEntry),
 241         sizeof (GtkEntryClass),
 242         (GtkClassInitFunc) gtk_entry_class_init,
 243         (GtkObjectInitFunc) gtk_entry_init,
 244         /* reserved_1 */ NULL,
 245         /* reserved_2 */ NULL,
 246         (GtkClassInitFunc) NULL,
 247       };
 248
 249       entry_type = gtk_type_unique (GTK_TYPE_EDITABLE, &entry_info);
 250     }
 251
 252   return entry_type;
 253 }
 254
 255 static void
 256 gtk_entry_class_init (GtkEntryClass *class)
 257 {
 258   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 259   GtkObjectClass *object_class;
 260   GtkWidgetClass *widget_class;
 261   GtkEditableClass *editable_class;
 262
 263   object_class = (GtkObjectClass*) class;
 264   widget_class = (GtkWidgetClass*) class;
 265   editable_class = (GtkEditableClass*) class;
 266   parent_class = gtk_type_class (GTK_TYPE_EDITABLE);
 267
 268   gobject_class->finalize = gtk_entry_finalize;
 269
 270   gtk_object_add_arg_type ("GtkEntry::max_length", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_MAX_LENGTH);
 271   gtk_object_add_arg_type ("GtkEntry::visibility", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_VISIBILITY);
 272
 273   object_class->set_arg = gtk_entry_set_arg;
 274   object_class->get_arg = gtk_entry_get_arg;
 275
 276   widget_class->realize = gtk_entry_realize;
 277   widget_class->unrealize = gtk_entry_unrealize;
 278   widget_class->draw_focus = gtk_entry_draw_focus;
 279   widget_class->size_request = gtk_entry_size_request;
 280   widget_class->size_allocate = gtk_entry_size_allocate;
 281   widget_class->draw = gtk_entry_draw;
 282   widget_class->expose_event = gtk_entry_expose;
 283   widget_class->button_press_event = gtk_entry_button_press;
 284   widget_class->button_release_event = gtk_entry_button_release;
 285   widget_class->motion_notify_event = gtk_entry_motion_notify;
 286   widget_class->key_press_event = gtk_entry_key_press;
 287   widget_class->focus_in_event = gtk_entry_focus_in;
 288   widget_class->focus_out_event = gtk_entry_focus_out;
 289   widget_class->style_set = gtk_entry_style_set;
 290   widget_class->direction_changed = gtk_entry_direction_changed;
 291   widget_class->state_changed = gtk_entry_state_changed;
 292
 293   editable_class->insert_text = gtk_entry_insert_text;
 294   editable_class->delete_text = gtk_entry_delete_text;
 295   editable_class->changed = (void (*)(GtkEditable *)) entry_adjust_scroll;
 296
 297   editable_class->move_cursor = gtk_entry_move_cursor;
 298   editable_class->move_word = gtk_entry_move_word;
 299   editable_class->move_to_column = gtk_entry_move_to_column;
 300
 301   editable_class->kill_char = gtk_entry_kill_char;
 302   editable_class->kill_word = gtk_entry_kill_word;
 303   editable_class->kill_line = gtk_entry_kill_line;
 304
 305   editable_class->update_text = gtk_entry_update_text;
 306   editable_class->get_chars   = gtk_entry_get_chars;
 307   editable_class->set_selection = gtk_entry_set_selection;
 308   editable_class->set_position = gtk_entry_set_position_from_editable;
 309 }
 310
 311 static void
 312 gtk_entry_set_arg (GtkObject      *object,
 313                    GtkArg         *arg,
 314                    guint           arg_id)
 315 {
 316   GtkEntry *entry;
 317
 318   entry = GTK_ENTRY (object);
 319
 320   switch (arg_id)
 321     {
 322     case ARG_MAX_LENGTH:
 323       gtk_entry_set_max_length (entry, GTK_VALUE_UINT (*arg));
 324       break;
 325     case ARG_VISIBILITY:
 326       gtk_entry_set_visibility (entry, GTK_VALUE_BOOL (*arg));
 327       break;
 328     default:
 329       break;
 330     }
 331 }
 332
 333 static void
 334 gtk_entry_get_arg (GtkObject      *object,
 335                    GtkArg         *arg,
 336                    guint           arg_id)
 337 {
 338   GtkEntry *entry;
 339
 340   entry = GTK_ENTRY (object);
 341
 342   switch (arg_id)
 343     {
 344     case ARG_MAX_LENGTH:
 345       GTK_VALUE_UINT (*arg) = entry->text_max_length;
 346       break;
 347     case ARG_VISIBILITY:
 348       GTK_VALUE_BOOL (*arg) = GTK_EDITABLE (entry)->visible;
 349       break;
 350     default:
 351       arg->type = GTK_TYPE_INVALID;
 352       break;
 353     }
 354 }
 355
 356 static void
 357 gtk_entry_init (GtkEntry *entry)
 358 {
 359   GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS);
 360
 361   entry->text_area = NULL;
 362
 363   entry->text_size = MIN_SIZE;
 364   entry->text = g_malloc (entry->text_size);
 365   entry->text[0] = '\0';
 366
 367   entry->text_length = 0;
 368   entry->text_max_length = 0;
 369   entry->n_bytes = 0;
 370   entry->scroll_offset = 0;
 371   entry->timer = 0;
 372   entry->button = 0;
 373   entry->ascent = 0;
 374
 375   /* This object is completely private. No external entity can gain a reference
 376    * to it; so we create it here and destroy it in finalize().
 377    */
 378   entry->im_context = gtk_im_multicontext_new ();
 379
 380   gtk_signal_connect (GTK_OBJECT (entry->im_context), "commit",
 381                       GTK_SIGNAL_FUNC (gtk_entry_commit_cb), entry);
 382 }
 383
 384 GtkWidget*
 385 gtk_entry_new (void)
 386 {
 387   return GTK_WIDGET (gtk_type_new (GTK_TYPE_ENTRY));
 388 }
 389
 390 GtkWidget*
 391 gtk_entry_new_with_max_length (guint16 max)
 392 {
 393   GtkEntry *entry;
 394
 395   entry = gtk_type_new (GTK_TYPE_ENTRY);
 396   entry->text_max_length = max;
 397
 398   return GTK_WIDGET (entry);
 399 }
 400
 401 void
 402 gtk_entry_set_text (GtkEntry *entry,
 403                     const gchar *text)
 404 {
 405   gint tmp_pos;
 406
 407   GtkEditable *editable;
 408
 409   g_return_if_fail (entry != NULL);
 410   g_return_if_fail (GTK_IS_ENTRY (entry));
 411   g_return_if_fail (text != NULL);
 412
 413   editable = GTK_EDITABLE (entry);
 414
 415   gtk_entry_delete_text (GTK_EDITABLE(entry), 0, entry->text_length);
 416
 417   tmp_pos = 0;
 418   gtk_editable_insert_text (editable, text, strlen (text), &tmp_pos);
 419   editable->current_pos = tmp_pos;
 420 }
 421
 422 void
 423 gtk_entry_append_text (GtkEntry *entry,
 424                        const gchar *text)
 425 {
 426   gint tmp_pos;
 427
 428   g_return_if_fail (entry != NULL);
 429   g_return_if_fail (GTK_IS_ENTRY (entry));
 430   g_return_if_fail (text != NULL);
 431
 432   tmp_pos = entry->text_length;
 433   gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos);
 434 }
 435
 436 void
 437 gtk_entry_prepend_text (GtkEntry *entry,
 438                         const gchar *text)
 439 {
 440   gint tmp_pos;
 441
 442   g_return_if_fail (entry != NULL);
 443   g_return_if_fail (GTK_IS_ENTRY (entry));
 444   g_return_if_fail (text != NULL);
 445
 446   tmp_pos = 0;
 447   gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos);
 448 }
 449
 450 void
 451 gtk_entry_set_position (GtkEntry *entry,
 452                         gint      position)
 453 {
 454   g_return_if_fail (entry != NULL);
 455   g_return_if_fail (GTK_IS_ENTRY (entry));
 456
 457   if ((position == -1) || (position > entry->text_length))
 458     GTK_EDITABLE(entry)->current_pos = entry->text_length;
 459   else
 460     GTK_EDITABLE(entry)->current_pos = position;
 461   entry_adjust_scroll (entry);
 462 }
 463
 464 static void
 465 gtk_entry_set_position_from_editable (GtkEditable *editable,
 466                                       gint position)
 467 {
 468   gtk_entry_set_position (GTK_ENTRY (editable), position);
 469 }
 470
 471 void
 472 gtk_entry_set_visibility (GtkEntry *entry,
 473                           gboolean visible)
 474 {
 475   g_return_if_fail (entry != NULL);
 476   g_return_if_fail (GTK_IS_ENTRY (entry));
 477
 478   GTK_EDITABLE (entry)->visible = visible ? TRUE : FALSE;
 479
 480   gtk_entry_queue_draw (entry);
 481 }
 482
 483 void
 484 gtk_entry_set_editable(GtkEntry *entry,
 485                        gboolean  editable)
 486 {
 487   g_return_if_fail (entry != NULL);
 488   g_return_if_fail (GTK_IS_ENTRY (entry));
 489
 490   gtk_editable_set_editable (GTK_EDITABLE (entry), editable);
 491 }
 492
 493 gchar*
 494 gtk_entry_get_text (GtkEntry *entry)
 495 {
 496   g_return_val_if_fail (entry != NULL, NULL);
 497   g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL);
 498
 499   return entry->text;
 500 }
 501
 502 static void
 503 gtk_entry_finalize (GObject *object)
 504 {
 505   GtkEntry *entry;
 506
 507   g_return_if_fail (GTK_IS_ENTRY (object));
 508
 509   entry = GTK_ENTRY (object);
 510
 511   if (entry->layout)
 512     g_object_unref (G_OBJECT (entry->layout));
 513
 514   gtk_object_unref (GTK_OBJECT (entry->im_context));
 515
 516   if (entry->timer)
 517     gtk_timeout_remove (entry->timer);
 518
 519   entry->text_size = 0;
 520
 521   if (entry->text)
 522     g_free (entry->text);
 523   entry->text = NULL;
 524
 525   G_OBJECT_CLASS (parent_class)->finalize (object);
 526 }
 527
 528 static void
 529 gtk_entry_realize (GtkWidget *widget)
 530 {
 531   GtkEntry *entry;
 532   GtkEditable *editable;
 533   GtkRequisition requisition;
 534   GdkWindowAttr attributes;
 535   gint attributes_mask;
 536
 537   g_return_if_fail (widget != NULL);
 538   g_return_if_fail (GTK_IS_ENTRY (widget));
 539
 540   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 541   entry = GTK_ENTRY (widget);
 542   editable = GTK_EDITABLE (widget);
 543
 544   gtk_widget_get_child_requisition (widget, &requisition);
 545
 546   attributes.window_type = GDK_WINDOW_CHILD;
 547   attributes.x = widget->allocation.x;
 548   attributes.y = widget->allocation.y + (widget->allocation.height -
 549                                          requisition.height) / 2;
 550   attributes.width = widget->allocation.width;
 551   attributes.height = requisition.height;
 552   attributes.wclass = GDK_INPUT_OUTPUT;
 553   attributes.visual = gtk_widget_get_visual (widget);
 554   attributes.colormap = gtk_widget_get_colormap (widget);
 555   attributes.event_mask = gtk_widget_get_events (widget);
 556   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 557                             GDK_BUTTON_PRESS_MASK |
 558                             GDK_BUTTON_RELEASE_MASK |
 559                             GDK_BUTTON1_MOTION_MASK |
 560                             GDK_BUTTON3_MOTION_MASK |
 561                             GDK_POINTER_MOTION_HINT_MASK |
 562                             GDK_ENTER_NOTIFY_MASK |
 563                             GDK_LEAVE_NOTIFY_MASK |
 564                             GDK_KEY_PRESS_MASK);
 565   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 566
 567   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
 568   gdk_window_set_user_data (widget->window, entry);
 569
 570   attributes.x = widget->style->xthickness;
 571   attributes.y = widget->style->ythickness;
 572   attributes.width = widget->allocation.width - attributes.x * 2;
 573   attributes.height = requisition.height - attributes.y * 2;
 574   attributes.cursor = entry->cursor = gdk_cursor_new (GDK_XTERM);
 575   attributes_mask |= GDK_WA_CURSOR;
 576
 577   entry->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
 578   gdk_window_set_user_data (entry->text_area, entry);
 579
 580   widget->style = gtk_style_attach (widget->style, widget->window);
 581
 582   gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
 583   gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
 584
 585   gdk_window_show (entry->text_area);
 586
 587   if (editable->selection_start_pos != editable->selection_end_pos)
 588     gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
 589
 590   gtk_im_context_set_client_window (entry->im_context, entry->text_area);
 591 }
 592
 593 static void
 594 gtk_entry_unrealize (GtkWidget *widget)
 595 {
 596   GtkEntry *entry;
 597
 598   g_return_if_fail (widget != NULL);
 599   g_return_if_fail (GTK_IS_ENTRY (widget));
 600
 601   entry = GTK_ENTRY (widget);
 602
 603   gtk_im_context_set_client_window (entry->im_context, entry->text_area);
 604
 605   if (entry->text_area)
 606     {
 607       gdk_window_set_user_data (entry->text_area, NULL);
 608       gdk_window_destroy (entry->text_area);
 609       entry->text_area = NULL;
 610       gdk_cursor_destroy (entry->cursor);
 611       entry->cursor = NULL;
 612     }
 613
 614   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 615     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 616 }
 617
 618 static void
 619 gtk_entry_draw_focus (GtkWidget *widget)
 620 {
 621   gint width, height;
 622   gint x, y;
 623
 624   g_return_if_fail (widget != NULL);
 625   g_return_if_fail (GTK_IS_ENTRY (widget));
 626
 627   if (GTK_WIDGET_DRAWABLE (widget))
 628     {
 629       x = 0;
 630       y = 0;
 631       gdk_window_get_size (widget->window, &width, &height);
 632
 633       if (GTK_WIDGET_HAS_FOCUS (widget))
 634         {
 635           x += 1;
 636           y += 1;
 637           width -= 2;
 638           height -= 2;
 639         }
 640
 641       gtk_paint_shadow (widget->style, widget->window,
 642                         GTK_STATE_NORMAL, GTK_SHADOW_IN,
 643                         NULL, widget, "entry",
 644                         x, y, width, height);
 645
 646       if (GTK_WIDGET_HAS_FOCUS (widget))
 647         {
 648            gdk_window_get_size (widget->window, &width, &height);
 649            gtk_paint_focus (widget->style, widget->window,
 650                             NULL, widget, "entry",
 651                             0, 0, width - 1, height - 1);
 652         }
 653     }
 654 }
 655
 656 static void
 657 gtk_entry_size_request (GtkWidget      *widget,
 658                         GtkRequisition *requisition)
 659 {
 660   GtkEntry *entry;
 661   PangoFontMetrics metrics;
 662   PangoFont *font;
 663   gchar *lang;
 664
 665   g_return_if_fail (widget != NULL);
 666   g_return_if_fail (GTK_IS_ENTRY (widget));
 667   g_return_if_fail (requisition != NULL);
 668
 669   entry = GTK_ENTRY (widget);
 670
 671   gtk_entry_ensure_layout (entry);
 672
 673   /* hackish for now, get metrics
 674    */
 675   font = pango_context_load_font (pango_layout_get_context (entry->layout),
 676                                   widget->style->font_desc);
 677   lang = pango_context_get_lang (pango_layout_get_context (entry->layout));
 678   pango_font_get_metrics (font, lang, &metrics);
 679   g_free (lang);
 680
 681   g_object_unref (G_OBJECT (font));
 682
 683   entry->ascent = metrics.ascent;
 684
 685   requisition->width = MIN_ENTRY_WIDTH + (widget->style->xthickness + INNER_BORDER) * 2;
 686   requisition->height = ((metrics.ascent + metrics.descent) / PANGO_SCALE +
 687                          (widget->style->ythickness + INNER_BORDER) * 2);
 688 }
 689
 690 static void
 691 gtk_entry_size_allocate (GtkWidget     *widget,
 692                          GtkAllocation *allocation)
 693 {
 694   GtkEntry *entry;
 695   GtkEditable *editable;
 696
 697   g_return_if_fail (widget != NULL);
 698   g_return_if_fail (GTK_IS_ENTRY (widget));
 699   g_return_if_fail (allocation != NULL);
 700
 701   widget->allocation = *allocation;
 702   entry = GTK_ENTRY (widget);
 703   editable = GTK_EDITABLE (widget);
 704
 705   if (GTK_WIDGET_REALIZED (widget))
 706     {
 707       /* We call gtk_widget_get_child_requisition, since we want (for
 708        * backwards compatibility reasons) the realization here to
 709        * be affected by the usize of the entry, if set
 710        */
 711       GtkRequisition requisition;
 712       gtk_widget_get_child_requisition (widget, &requisition);
 713
 714       gdk_window_move_resize (widget->window,
 715                               allocation->x,
 716                               allocation->y + (allocation->height - requisition.height) / 2,
 717                               allocation->width, requisition.height);
 718       gdk_window_move_resize (entry->text_area,
 719                               widget->style->xthickness,
 720                               widget->style->ythickness,
 721                               allocation->width - widget->style->xthickness * 2,
 722                               requisition.height - widget->style->ythickness * 2);
 723
 724     }
 725
 726   /* And make sure the cursor is on screen */
 727   entry_adjust_scroll (entry);
 728 }
 729
 730 static void
 731 gtk_entry_draw (GtkWidget    *widget,
 732                 GdkRectangle *area)
 733 {
 734   GtkEntry *entry;
 735
 736   g_return_if_fail (widget != NULL);
 737   g_return_if_fail (GTK_IS_ENTRY (widget));
 738   g_return_if_fail (area != NULL);
 739
 740   entry = GTK_ENTRY (widget);
 741
 742   if (GTK_WIDGET_DRAWABLE (widget))
 743     {
 744       GdkRectangle tmp_area = *area;
 745
 746       tmp_area.x -= widget->style->xthickness;
 747       tmp_area.y -= widget->style->xthickness;
 748
 749       gdk_window_begin_paint_rect (entry->text_area, &tmp_area);
 750       gtk_widget_draw_focus (widget);
 751       gtk_entry_draw_text (GTK_ENTRY (widget));
 752       gtk_entry_draw_cursor (GTK_ENTRY (widget));
 753       gdk_window_end_paint (entry->text_area);
 754     }
 755 }
 756
 757 static gint
 758 gtk_entry_expose (GtkWidget      *widget,
 759                   GdkEventExpose *event)
 760 {
 761   GtkEntry *entry;
 762
 763   g_return_val_if_fail (widget != NULL, FALSE);
 764   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 765   g_return_val_if_fail (event != NULL, FALSE);
 766
 767   entry = GTK_ENTRY (widget);
 768
 769   if (widget->window == event->window)
 770     gtk_widget_draw_focus (widget);
 771   else if (entry->text_area == event->window)
 772     {
 773       gtk_entry_draw_text (GTK_ENTRY (widget));
 774       gtk_entry_draw_cursor (GTK_ENTRY (widget));
 775     }
 776
 777   return FALSE;
 778 }
 779
 780 static gint
 781 gtk_entry_button_press (GtkWidget      *widget,
 782                         GdkEventButton *event)
 783 {
 784   GtkEntry *entry;
 785   GtkEditable *editable;
 786   gint tmp_pos;
 787
 788   g_return_val_if_fail (widget != NULL, FALSE);
 789   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 790   g_return_val_if_fail (event != NULL, FALSE);
 791
 792   if (ctext_atom == GDK_NONE)
 793     ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
 794
 795   entry = GTK_ENTRY (widget);
 796   editable = GTK_EDITABLE (widget);
 797
 798   if (entry->button && (event->button != entry->button))
 799     return FALSE;
 800
 801   entry->button = event->button;
 802
 803   if (!GTK_WIDGET_HAS_FOCUS (widget))
 804     gtk_widget_grab_focus (widget);
 805
 806   if (event->button == 1)
 807     {
 808       switch (event->type)
 809         {
 810         case GDK_BUTTON_PRESS:
 811           gtk_grab_add (widget);
 812
 813           tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
 814           /* Set it now, so we display things right. We'll unset it
 815            * later if things don't work out */
 816           editable->has_selection = TRUE;
 817           gtk_entry_set_selection (editable, tmp_pos, tmp_pos);
 818           editable->current_pos = editable->selection_start_pos;
 819           break;
 820
 821         case GDK_2BUTTON_PRESS:
 822           gtk_select_word (entry, event->time);
 823           break;
 824
 825         case GDK_3BUTTON_PRESS:
 826           gtk_select_line (entry, event->time);
 827           break;
 828
 829         default:
 830           break;
 831         }
 832
 833       return TRUE;
 834     }
 835   else if (event->type == GDK_BUTTON_PRESS)
 836     {
 837       if ((event->button == 2) && editable->editable)
 838         {
 839           if (editable->selection_start_pos == editable->selection_end_pos ||
 840               editable->has_selection)
 841             editable->current_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
 842           gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
 843                                  ctext_atom, event->time);
 844         }
 845       else
 846         {
 847           gtk_grab_add (widget);
 848
 849           tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
 850           gtk_entry_set_selection (editable, tmp_pos, tmp_pos);
 851           editable->has_selection = FALSE;
 852           editable->current_pos = editable->selection_start_pos;
 853
 854           if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
 855             gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
 856         }
 857
 858       return TRUE;
 859     }
 860
 861   return FALSE;
 862 }
 863
 864 static gint
 865 gtk_entry_button_release (GtkWidget      *widget,
 866                           GdkEventButton *event)
 867 {
 868   GtkEntry *entry;
 869   GtkEditable *editable;
 870
 871   g_return_val_if_fail (widget != NULL, FALSE);
 872   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 873   g_return_val_if_fail (event != NULL, FALSE);
 874
 875   entry = GTK_ENTRY (widget);
 876   editable = GTK_EDITABLE (widget);
 877
 878   if (entry->button != event->button)
 879     return FALSE;
 880
 881   entry->button = 0;
 882
 883   if (event->button == 1)
 884     {
 885       gtk_grab_remove (widget);
 886
 887       editable->has_selection = FALSE;
 888       if (editable->selection_start_pos != editable->selection_end_pos)
 889         {
 890           if (gtk_selection_owner_set (widget,
 891                                        GDK_SELECTION_PRIMARY,
 892                                        event->time))
 893             editable->has_selection = TRUE;
 894           else
 895             gtk_entry_queue_draw (entry);
 896         }
 897       else
 898         {
 899           if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
 900             gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
 901         }
 902
 903       return TRUE;
 904     }
 905   else if (event->button == 3)
 906     {
 907       gtk_grab_remove (widget);
 908
 909       return TRUE;
 910     }
 911
 912   return FALSE;
 913 }
 914
 915 static gint
 916 gtk_entry_motion_notify (GtkWidget      *widget,
 917                          GdkEventMotion *event)
 918 {
 919   GtkEntry *entry;
 920   gint x;
 921
 922   g_return_val_if_fail (widget != NULL, FALSE);
 923   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 924   g_return_val_if_fail (event != NULL, FALSE);
 925
 926   entry = GTK_ENTRY (widget);
 927
 928   if (entry->button == 0)
 929     return FALSE;
 930
 931   x = event->x;
 932   if (event->is_hint || (entry->text_area != event->window))
 933     gdk_window_get_pointer (entry->text_area, &x, NULL, NULL);
 934
 935   GTK_EDITABLE(entry)->selection_end_pos = gtk_entry_find_position (entry, x + entry->scroll_offset);
 936   GTK_EDITABLE(entry)->current_pos = GTK_EDITABLE(entry)->selection_end_pos;
 937   entry_adjust_scroll (entry);
 938   gtk_entry_queue_draw (entry);
 939
 940   return TRUE;
 941 }
 942
 943 static gint
 944 gtk_entry_key_press (GtkWidget   *widget,
 945                      GdkEventKey *event)
 946 {
 947   GtkEntry *entry;
 948   GtkEditable *editable;
 949
 950   gint return_val;
 951   gint key;
 952   guint initial_pos;
 953   gint extend_selection;
 954   gint extend_start;
 955
 956   g_return_val_if_fail (widget != NULL, FALSE);
 957   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 958   g_return_val_if_fail (event != NULL, FALSE);
 959
 960   entry = GTK_ENTRY (widget);
 961   editable = GTK_EDITABLE (widget);
 962   return_val = FALSE;
 963
 964   if(editable->editable == FALSE)
 965     return FALSE;
 966
 967   initial_pos = editable->current_pos;
 968
 969   extend_selection = event->state & GDK_SHIFT_MASK;
 970   extend_start = FALSE;
 971
 972   if (extend_selection)
 973     {
 974       if (editable->selection_start_pos == editable->selection_end_pos)
 975         {
 976           editable->selection_start_pos = editable->current_pos;
 977           editable->selection_end_pos = editable->current_pos;
 978         }
 979
 980       extend_start = (editable->current_pos == editable->selection_start_pos);
 981     }
 982
 983   switch (event->keyval)
 984     {
 985     case GDK_BackSpace:
 986       return_val = TRUE;
 987       if (event->state & GDK_CONTROL_MASK)
 988         gtk_delete_backward_word (entry);
 989       else
 990         gtk_delete_backward_character (entry);
 991       break;
 992     case GDK_Clear:
 993       return_val = TRUE;
 994       gtk_delete_line (entry);
 995       break;
 996     case GDK_Insert:
 997       return_val = TRUE;
 998       if (event->state & GDK_SHIFT_MASK)
 999         {
1000           extend_selection = FALSE;
1001           gtk_editable_paste_clipboard (editable);
1002         }
1003       else if (event->state & GDK_CONTROL_MASK)
1004         {
1005           gtk_editable_copy_clipboard (editable);
1006         }
1007       else
1008         {
1009           /* gtk_toggle_insert(entry) -- IMPLEMENT */
1010         }
1011       break;
1012     case GDK_Delete:
1013       return_val = TRUE;
1014       if (event->state & GDK_CONTROL_MASK)
1015         gtk_delete_forward_word (entry);
1016       else if (event->state & GDK_SHIFT_MASK)
1017         {
1018           extend_selection = FALSE;
1019           gtk_editable_cut_clipboard (editable);
1020         }
1021       else
1022         gtk_delete_forward_character (entry);
1023       break;
1024     case GDK_Home:
1025       return_val = TRUE;
1026       gtk_move_beginning_of_line (entry);
1027       break;
1028     case GDK_End:
1029       return_val = TRUE;
1030       gtk_move_end_of_line (entry);
1031       break;
1032     case GDK_Left:
1033       return_val = TRUE;
1034       if (event->state & GDK_CONTROL_MASK)
1035         gtk_move_backward_word (entry);
1036       else
1037         gtk_move_backward_character (entry);
1038       break;
1039     case GDK_Right:
1040       return_val = TRUE;
1041       if (event->state & GDK_CONTROL_MASK)
1042         gtk_move_forward_word (entry);
1043       else
1044         gtk_move_forward_character (entry);
1045       break;
1046     case GDK_Return:
1047       return_val = TRUE;
1048       gtk_widget_activate (widget);
1049       break;
1050     /* The next two keys should not be inserted literally. Any others ??? */
1051     case GDK_Tab:
1052     case GDK_Escape:
1053       break;
1054     default:
1055       if ((event->keyval >= 0x20) && (event->keyval <= 0xFF))
1056         {
1057           key = event->keyval;
1058
1059           if (event->state & GDK_CONTROL_MASK)
1060             {
1061               if ((key >= 'A') && (key <= 'Z'))
1062                 key -= 'A' - 'a';
1063
1064               if ((key >= 'a') && (key <= 'z') && control_keys[key - 'a'])
1065                 {
1066                   (* control_keys[key - 'a']) (editable, event->time);
1067                   return_val = TRUE;
1068                 }
1069               break;
1070             }
1071           else if (event->state & GDK_MOD1_MASK)
1072             {
1073               if ((key >= 'A') && (key <= 'Z'))
1074                 key -= 'A' - 'a';
1075
1076               if ((key >= 'a') && (key <= 'z') && alt_keys[key - 'a'])
1077                 {
1078                   (* alt_keys[key - 'a']) (editable, event->time);
1079                   return_val = TRUE;
1080                 }
1081               break;
1082             }
1083         }
1084       gtk_im_context_filter_keypress (entry->im_context, event);
1085
1086       break;
1087     }
1088
1089   /* since we emit signals from within the above code,
1090    * the widget might already be destroyed or at least
1091    * unrealized.
1092    */
1093   if (GTK_WIDGET_REALIZED (editable) &&
1094       return_val && (editable->current_pos != initial_pos))
1095     {
1096       if (extend_selection)
1097         {
1098           if (editable->current_pos < editable->selection_start_pos)
1099             editable->selection_start_pos = editable->current_pos;
1100           else if (editable->current_pos > editable->selection_end_pos)
1101             editable->selection_end_pos = editable->current_pos;
1102           else
1103             {
1104               if (extend_start)
1105                 editable->selection_start_pos = editable->current_pos;
1106               else
1107                 editable->selection_end_pos = editable->current_pos;
1108             }
1109         }
1110       else
1111         {
1112           editable->selection_start_pos = 0;
1113           editable->selection_end_pos = 0;
1114         }
1115
1116       gtk_editable_claim_selection (editable,
1117                                     editable->selection_start_pos != editable->selection_end_pos,
1118                                     event->time);
1119
1120       entry_adjust_scroll (entry);
1121       gtk_entry_queue_draw (entry);
1122     }
1123
1124   return return_val;
1125 }
1126
1127 static gint
1128 gtk_entry_focus_in (GtkWidget     *widget,
1129                     GdkEventFocus *event)
1130 {
1131   g_return_val_if_fail (widget != NULL, FALSE);
1132   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
1133   g_return_val_if_fail (event != NULL, FALSE);
1134
1135   GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
1136   gtk_widget_draw_focus (widget);
1137   gtk_entry_queue_draw (GTK_ENTRY (widget));
1138
1139   gtk_im_context_focus_in (GTK_ENTRY (widget)->im_context);
1140
1141   return FALSE;
1142 }
1143
1144 static gint
1145 gtk_entry_focus_out (GtkWidget     *widget,
1146                      GdkEventFocus *event)
1147 {
1148   g_return_val_if_fail (widget != NULL, FALSE);
1149   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
1150   g_return_val_if_fail (event != NULL, FALSE);
1151
1152   GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
1153   gtk_widget_draw_focus (widget);
1154   gtk_entry_queue_draw (GTK_ENTRY (widget));
1155
1156   gtk_im_context_focus_out (GTK_ENTRY (widget)->im_context);
1157
1158   return FALSE;
1159 }
1160
1161 static void
1162 gtk_entry_ensure_layout (GtkEntry *entry)
1163 {
1164   GtkWidget *widget = GTK_WIDGET (entry);
1165
1166   if (!entry->layout)
1167     {
1168       entry->layout = gtk_widget_create_pango_layout (widget, NULL);
1169       pango_layout_set_text (entry->layout, entry->text, entry->n_bytes);
1170     }
1171 }
1172
1173 static void
1174 gtk_entry_draw_text (GtkEntry *entry)
1175 {
1176   GtkWidget *widget;
1177   PangoLayoutLine *line;
1178   GtkEditable *editable = GTK_EDITABLE (entry);
1179
1180   g_return_if_fail (entry != NULL);
1181   g_return_if_fail (GTK_IS_ENTRY (entry));
1182
1183   if (GTK_WIDGET_DRAWABLE (entry))
1184     {
1185       PangoRectangle logical_rect;
1186       int area_height;
1187
1188       gdk_window_get_size (entry->text_area, NULL, &area_height);
1189       area_height = PANGO_SCALE * (area_height - 2 * INNER_BORDER);
1190
1191       widget = GTK_WIDGET (entry);
1192
1193       gtk_entry_ensure_layout (entry);
1194
1195       line = pango_layout_get_lines (entry->layout)->data;
1196       pango_layout_line_get_extents (line, NULL, &logical_rect);
1197
1198       gdk_draw_layout (entry->text_area, widget->style->text_gc [widget->state],
1199                        INNER_BORDER - entry->scroll_offset,
1200                        INNER_BORDER + ((area_height - logical_rect.height) / 2 +
1201                                        entry->ascent + logical_rect.y) / PANGO_SCALE,
1202                        entry->layout);
1203
1204       if (editable->selection_start_pos != editable->selection_end_pos)
1205         {
1206           gint *ranges;
1207           gint n_ranges, i;
1208           gint start_index = g_utf8_offset_to_pointer (entry->text,
1209                                                        MIN (editable->selection_start_pos, editable->selection_end_pos)) - entry->text;
1210           gint end_index = g_utf8_offset_to_pointer (entry->text,
1211                                                      MAX (editable->selection_start_pos, editable->selection_end_pos)) - entry->text;
1212           GtkStateType selected_state = editable->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE;
1213           GdkRegion *clip_region = gdk_region_new ();
1214
1215           pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
1216
1217           for (i=0; i < n_ranges; i++)
1218             {
1219               GdkRectangle rect;
1220
1221               rect.x = INNER_BORDER - entry->scroll_offset + ranges[2*i] / PANGO_SCALE;
1222               rect.y = INNER_BORDER + (entry->ascent + logical_rect.y) / PANGO_SCALE;
1223               rect.width = (ranges[2*i + 1] - ranges[2*i]) / PANGO_SCALE;
1224               rect.height = logical_rect.height / PANGO_SCALE;
1225
1226               gdk_draw_rectangle (entry->text_area, widget->style->bg_gc [selected_state], TRUE,
1227                                   rect.x, rect.y, rect.width, rect.height);
1228
1229               gdk_region_union_with_rect (clip_region, &rect);
1230             }
1231
1232           gdk_gc_set_clip_region (widget->style->fg_gc [selected_state], clip_region);
1233           gdk_draw_layout (entry->text_area, widget->style->fg_gc [selected_state],
1234                            INNER_BORDER - entry->scroll_offset,
1235                            INNER_BORDER + ((area_height - logical_rect.height) / 2 +
1236                                            entry->ascent + logical_rect.y) / PANGO_SCALE,
1237                            entry->layout);
1238           gdk_gc_set_clip_region (widget->style->fg_gc [selected_state], NULL);
1239
1240           gdk_region_destroy (clip_region);
1241           g_free (ranges);
1242         }
1243     }
1244 }
1245
1246 static void
1247 gtk_entry_draw_cursor (GtkEntry *entry)
1248 {
1249   g_return_if_fail (entry != NULL);
1250   g_return_if_fail (GTK_IS_ENTRY (entry));
1251
1252   if (GTK_WIDGET_DRAWABLE (entry))
1253     {
1254       GtkWidget *widget = GTK_WIDGET (entry);
1255       GtkEditable *editable = GTK_EDITABLE (entry);
1256
1257       if (GTK_WIDGET_HAS_FOCUS (widget) &&
1258           (editable->selection_start_pos == editable->selection_end_pos))
1259         {
1260           gint xoffset = INNER_BORDER - entry->scroll_offset;
1261           gint strong_x, weak_x;
1262           gint text_area_height;
1263
1264           gdk_window_get_size (entry->text_area, NULL, &text_area_height);
1265
1266           gtk_entry_get_cursor_locations (entry, &strong_x, &weak_x);
1267
1268           gdk_draw_line (entry->text_area, widget->style->bg_gc[GTK_STATE_SELECTED],
1269                          xoffset + strong_x, INNER_BORDER,
1270                          xoffset + strong_x, text_area_height - INNER_BORDER);
1271
1272           if (weak_x != strong_x)
1273             gdk_draw_line (entry->text_area, widget->style->fg_gc[GTK_STATE_NORMAL],
1274                            xoffset + weak_x, INNER_BORDER,
1275                            xoffset + weak_x, text_area_height - INNER_BORDER);
1276
1277         }
1278     }
1279 }
1280
1281 static void
1282 gtk_entry_queue_draw (GtkEntry *entry)
1283 {
1284   g_return_if_fail (entry != NULL);
1285   g_return_if_fail (GTK_IS_ENTRY (entry));
1286
1287   if (GTK_WIDGET_REALIZED (entry))
1288     {
1289       GdkRectangle rect = { 0 };
1290
1291       gdk_window_get_size (entry->text_area, &rect.width, &rect.height);
1292       gdk_window_invalidate_rect (entry->text_area, &rect, 0);
1293     }
1294 }
1295
1296 #if 0
1297 static gint
1298 gtk_entry_timer (gpointer data)
1299 {
1300   GtkEntry *entry;
1301
1302   GDK_THREADS_ENTER ();
1303
1304   entry = GTK_ENTRY (data);
1305   entry->timer = 0;
1306
1307   GDK_THREADS_LEAVE ();
1308
1309   return FALSE;
1310 }
1311 #endif
1312
1313 static gint
1314 gtk_entry_find_position (GtkEntry *entry,
1315                          gint      x)
1316 {
1317   PangoLayoutLine *line;
1318   gint index;
1319   gboolean trailing;
1320
1321   gtk_entry_ensure_layout (entry);
1322
1323   line = pango_layout_get_lines (entry->layout)->data;
1324   pango_layout_line_x_to_index (line, x * PANGO_SCALE, &index, &trailing);
1325
1326   if (trailing)
1327     index = g_utf8_next_char (entry->text + index) - entry->text;
1328
1329   return index;
1330 }
1331
1332 static void
1333 gtk_entry_get_cursor_locations (GtkEntry *entry,
1334                                 gint     *strong_x,
1335                                 gint     *weak_x)
1336 {
1337   GtkEditable *editable = GTK_EDITABLE (entry);
1338   int index;
1339
1340   PangoRectangle strong_pos, weak_pos;
1341
1342   gtk_entry_ensure_layout (entry);
1343
1344   index = g_utf8_offset_to_pointer (entry->text, editable->current_pos) - entry->text;
1345   pango_layout_get_cursor_pos (entry->layout, index, &strong_pos, &weak_pos);
1346
1347   if (strong_x)
1348     *strong_x = strong_pos.x / PANGO_SCALE;
1349
1350   if (weak_x)
1351     *weak_x = weak_pos.x / PANGO_SCALE;
1352 }
1353
1354 static void
1355 entry_adjust_scroll (GtkEntry *entry)
1356 {
1357   GtkWidget *widget;
1358   gint min_offset, max_offset;
1359   gint text_area_width;
1360   gint strong_x, weak_x;
1361   gint strong_xoffset, weak_xoffset;
1362   PangoLayoutLine *line;
1363   PangoRectangle logical_rect;
1364
1365   g_return_if_fail (entry != NULL);
1366   g_return_if_fail (GTK_IS_ENTRY (entry));
1367
1368   widget = GTK_WIDGET (entry);
1369   text_area_width = widget->allocation.width - 2 * (widget->style->xthickness + INNER_BORDER);
1370
1371   if (!entry->layout)
1372     return;
1373
1374   line = pango_layout_get_lines (entry->layout)->data;
1375
1376   /* Display as much text as we can */
1377
1378   pango_layout_line_get_extents (line, NULL, &logical_rect);
1379
1380   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
1381     {
1382       min_offset = 0;
1383       max_offset = MAX (min_offset, logical_rect.width / PANGO_SCALE - text_area_width);
1384     }
1385   else
1386     {
1387       max_offset = logical_rect.width / PANGO_SCALE - text_area_width;
1388       min_offset = MIN (0, max_offset);
1389     }
1390
1391   entry->scroll_offset = CLAMP (entry->scroll_offset, min_offset, max_offset);
1392
1393   /* And make sure cursors are on screen. Note that the cursor is
1394    * actually drawn one pixel into the INNER_BORDER space on
1395    * the right, when the scroll is at the utmost right. This
1396    * looks better to to me than confining the cursor inside the
1397    * border entirely, though it means that the cursor gets one
1398    * pixel closer to the the edge of the widget on the right than
1399    * on the left. This might need changing if one changed
1400    * INNER_BORDER from 2 to 1, as one would do on a
1401    * small-screen-real-estate display.
1402    *
1403    * We always make sure that the strong cursor is on screen, and
1404    * put the weak cursor on screen if possible.
1405    */
1406
1407   gtk_entry_get_cursor_locations (entry, &strong_x, &weak_x);
1408
1409   strong_xoffset = strong_x - entry->scroll_offset;
1410
1411   if (strong_xoffset < 0)
1412     {
1413       entry->scroll_offset += strong_xoffset;
1414       strong_xoffset = 0;
1415     }
1416   else if (strong_xoffset > text_area_width)
1417     {
1418       entry->scroll_offset += strong_xoffset - text_area_width;
1419       strong_xoffset = text_area_width;
1420     }
1421
1422   weak_xoffset = weak_x - entry->scroll_offset;
1423
1424   if (weak_xoffset < 0 && strong_xoffset - weak_xoffset <= text_area_width)
1425     {
1426       entry->scroll_offset += weak_xoffset;
1427     }
1428   else if (weak_xoffset > text_area_width &&
1429            strong_xoffset - (weak_xoffset - text_area_width) >= 0)
1430     {
1431       entry->scroll_offset += weak_xoffset - text_area_width;
1432     }
1433
1434   gtk_widget_queue_draw (GTK_WIDGET (entry));
1435 }
1436
1437 static void
1438 gtk_entry_insert_text (GtkEditable *editable,
1439                        const gchar *new_text,
1440                        gint         new_text_length,
1441                        gint        *position)
1442 {
1443   gint index;
1444   gint n_chars;
1445   GtkEntry *entry;
1446   GtkWidget *widget;
1447
1448   g_return_if_fail (editable != NULL);
1449   g_return_if_fail (GTK_IS_ENTRY (editable));
1450   g_return_if_fail (position != NULL);
1451   g_return_if_fail (*position >= 0 || *position < GTK_ENTRY (editable)->text_size);
1452
1453   entry = GTK_ENTRY (editable);
1454   widget = GTK_WIDGET (editable);
1455
1456   if (new_text_length < 0)
1457     new_text_length = strlen (new_text);
1458
1459   n_chars = g_utf8_strlen (new_text, new_text_length);
1460   if (entry->text_max_length > 0 && n_chars + entry->text_length > entry->text_max_length)
1461     {
1462       gdk_beep ();
1463       n_chars = entry->text_max_length - entry->text_length;
1464     }
1465
1466   if (new_text_length + entry->n_bytes + 1 > entry->text_size)
1467     {
1468       while (new_text_length + entry->n_bytes + 1 > entry->text_size)
1469         {
1470           if (entry->text_size == 0)
1471             entry->text_size = MIN_SIZE;
1472           else
1473             {
1474               if (2 * (guint)entry->text_size < MAX_SIZE &&
1475                   2 * (guint)entry->text_size > entry->text_size)
1476                 entry->text_size *= 2;
1477               else
1478                 {
1479                   entry->text_size = MAX_SIZE;
1480                   new_text_length = entry->text_size - new_text_length - 1;
1481                   break;
1482                 }
1483             }
1484         }
1485
1486       entry->text = g_realloc (entry->text, entry->text_size);
1487     }
1488
1489   index = g_utf8_offset_to_pointer (entry->text, *position) - entry->text;
1490
1491   g_memmove (entry->text + index + new_text_length, entry->text + index, entry->n_bytes - index);
1492   memcpy (entry->text + index, new_text, new_text_length);
1493
1494   entry->n_bytes += new_text_length;
1495   entry->text_length += n_chars;
1496
1497   /* NUL terminate for safety and convenience */
1498   entry->text[entry->n_bytes] = '\0';
1499
1500   if (editable->current_pos > *position)
1501     editable->current_pos += n_chars;
1502
1503   if (editable->selection_start_pos > *position)
1504     editable->selection_start_pos += n_chars;
1505
1506   if (editable->selection_end_pos > *position)
1507     editable->selection_end_pos += n_chars;
1508
1509   *position += n_chars;
1510
1511   if (entry->layout)
1512     pango_layout_set_text (entry->layout, entry->text, entry->n_bytes);
1513
1514   gtk_entry_queue_draw (entry);
1515 }
1516
1517 static void
1518 gtk_entry_delete_text (GtkEditable *editable,
1519                        gint         start_pos,
1520                        gint         end_pos)
1521 {
1522   GtkEntry *entry;
1523
1524   g_return_if_fail (editable != NULL);
1525   g_return_if_fail (GTK_IS_ENTRY (editable));
1526
1527   entry = GTK_ENTRY (editable);
1528
1529   if (end_pos < 0)
1530     end_pos = entry->text_length;
1531
1532   if ((start_pos < end_pos) &&
1533       (start_pos >= 0) &&
1534       (end_pos <= entry->text_length))
1535     {
1536       gint start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
1537       gint end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
1538
1539       g_memmove (entry->text + start_index, entry->text + end_index, entry->n_bytes - end_index);
1540       entry->text_length -= (end_pos - start_pos);
1541       entry->n_bytes -= (end_index - start_index);
1542
1543       if (editable->current_pos > start_pos)
1544         editable->current_pos -= MIN (editable->current_pos, end_pos) - start_pos;
1545
1546       if (editable->selection_start_pos > start_pos)
1547         editable->selection_start_pos -= MIN (editable->selection_start_pos, end_pos) - start_pos;
1548
1549       if (editable->selection_end_pos > start_pos)
1550         editable->selection_end_pos -= MIN (editable->selection_end_pos, end_pos) - start_pos;
1551
1552     }
1553
1554   gtk_entry_queue_draw (entry);
1555
1556   if (entry->layout)
1557     pango_layout_set_text (entry->layout, entry->text, entry->n_bytes);
1558 }
1559
1560 static void
1561 gtk_entry_update_text (GtkEditable *editable,
1562                        gint         start_pos,
1563                        gint         end_pos)
1564 {
1565   GtkEntry *entry = GTK_ENTRY (editable);
1566
1567   gtk_entry_queue_draw (entry);
1568 }
1569
1570 static gchar *
1571 gtk_entry_get_chars      (GtkEditable   *editable,
1572                           gint           start_pos,
1573                           gint           end_pos)
1574 {
1575   GtkEntry *entry;
1576   gint start_index, end_index;
1577
1578   g_return_val_if_fail (editable != NULL, NULL);
1579   g_return_val_if_fail (GTK_IS_ENTRY (editable), NULL);
1580
1581   entry = GTK_ENTRY (editable);
1582
1583   if (end_pos < 0)
1584     end_pos = entry->text_length;
1585
1586   start_pos = MIN (entry->text_length, start_pos);
1587   end_pos = MIN (entry->text_length, end_pos);
1588
1589   start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
1590   end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
1591
1592   return g_strndup (entry->text + start_index, end_index - start_index);
1593 }
1594
1595 static void
1596 gtk_entry_move_cursor (GtkEditable *editable,
1597                        gint         x,
1598                        gint         y)
1599 {
1600   GtkEntry *entry;
1601   gint index;
1602
1603   entry = GTK_ENTRY (editable);
1604
1605   index = g_utf8_offset_to_pointer (entry->text, editable->current_pos) - entry->text;
1606
1607   /* Horizontal motion */
1608
1609   if ((gint)editable->current_pos < -x)
1610     editable->current_pos = 0;
1611   else if (editable->current_pos + x > entry->text_length)
1612     editable->current_pos = entry->text_length;
1613   else
1614     editable->current_pos += x;
1615
1616   /* Ignore vertical motion */
1617 }
1618
1619 static void
1620 gtk_entry_move_cursor_visually (GtkEditable *editable,
1621                                 gint         count)
1622 {
1623   GtkEntry *entry;
1624   gint index;
1625
1626   entry = GTK_ENTRY (editable);
1627
1628   index = g_utf8_offset_to_pointer (entry->text, editable->current_pos) - entry->text;
1629
1630   gtk_entry_ensure_layout (entry);
1631
1632   while (count != 0)
1633     {
1634       int new_index, new_trailing;
1635
1636       if (count > 0)
1637         {
1638           pango_layout_move_cursor_visually (entry->layout, index, 0, 1, &new_index, &new_trailing);
1639           count--;
1640         }
1641       else
1642         {
1643           pango_layout_move_cursor_visually (entry->layout, index, 0, -1, &new_index, &new_trailing);
1644           count++;
1645         }
1646
1647       if (new_index < 0 || new_index == G_MAXINT)
1648         break;
1649
1650       if (new_trailing)
1651         index = g_utf8_next_char (entry->text + new_index) - entry->text;
1652       else
1653         index = new_index;
1654     }
1655
1656   editable->current_pos = g_utf8_pointer_to_offset (entry->text, entry->text + index);
1657 }
1658
1659 static void
1660 gtk_move_forward_character (GtkEntry *entry)
1661 {
1662   gtk_entry_move_cursor_visually (GTK_EDITABLE (entry), 1);
1663 }
1664
1665 static void
1666 gtk_move_backward_character (GtkEntry *entry)
1667 {
1668   gtk_entry_move_cursor_visually (GTK_EDITABLE (entry), -1);
1669 }
1670
1671 static void
1672 gtk_entry_move_word (GtkEditable *editable,
1673                      gint         n)
1674 {
1675   while (n-- > 0)
1676     gtk_move_forward_word (GTK_ENTRY (editable));
1677   while (n++ < 0)
1678     gtk_move_backward_word (GTK_ENTRY (editable));
1679 }
1680
1681 static void
1682 gtk_move_forward_word (GtkEntry *entry)
1683 {
1684   GtkEditable *editable;
1685   gint i;
1686
1687   editable = GTK_EDITABLE (entry);
1688
1689   /* Prevent any leak of information */
1690   if (!editable->visible)
1691     {
1692       editable->current_pos = entry->text_length;
1693       return;
1694     }
1695
1696   if (entry->text && (editable->current_pos < entry->text_length))
1697     {
1698       PangoLogAttr *log_attrs;
1699       gint n_attrs, old_pos;
1700
1701       gtk_entry_ensure_layout (entry);
1702       pango_layout_get_log_attrs (entry->layout, &log_attrs, &n_attrs);
1703
1704       i = old_pos = editable->current_pos;
1705
1706       /* Advance over white space */
1707       while (i < n_attrs && log_attrs[i].is_white)
1708         i++;
1709
1710       /* Find the next word beginning */
1711       i++;
1712       while (i < n_attrs && !log_attrs[i].is_word_stop)
1713         i++;
1714
1715       editable->current_pos = MAX (entry->text_length, i);
1716
1717       /* Back up over white space */
1718       while (i > 0 && log_attrs[i - 1].is_white)
1719         i--;
1720
1721       if (i != old_pos)
1722         editable->current_pos = i;
1723
1724       g_free (log_attrs);
1725     }
1726 }
1727
1728 static void
1729 gtk_move_backward_word (GtkEntry *entry)
1730 {
1731   GtkEditable *editable;
1732   gint i;
1733
1734   editable = GTK_EDITABLE (entry);
1735
1736   /* Prevent any leak of information */
1737   if (!editable->visible)
1738     {
1739       editable->current_pos = 0;
1740       return;
1741     }
1742
1743   if (entry->text && editable->current_pos > 0)
1744     {
1745       PangoLogAttr *log_attrs;
1746       gint n_attrs;
1747
1748       gtk_entry_ensure_layout (entry);
1749       pango_layout_get_log_attrs (entry->layout, &log_attrs, &n_attrs);
1750
1751       i = editable->current_pos - 1;
1752
1753       /* Find the previous word beginning */
1754       while (i > 0 && !log_attrs[i].is_word_stop)
1755         i--;
1756
1757       g_free (log_attrs);
1758     }
1759 }
1760
1761 static void
1762 gtk_entry_move_to_column (GtkEditable *editable, gint column)
1763 {
1764   GtkEntry *entry;
1765
1766   entry = GTK_ENTRY (editable);
1767
1768   if (column < 0 || column > entry->text_length)
1769     editable->current_pos = entry->text_length;
1770   else
1771     editable->current_pos = column;
1772 }
1773
1774 static void
1775 gtk_move_beginning_of_line (GtkEntry *entry)
1776 {
1777   gtk_entry_move_to_column (GTK_EDITABLE (entry), 0);
1778 }
1779
1780 static void
1781 gtk_move_end_of_line (GtkEntry *entry)
1782 {
1783   gtk_entry_move_to_column (GTK_EDITABLE (entry), -1);
1784 }
1785
1786 static void
1787 gtk_entry_kill_char (GtkEditable *editable,
1788                      gint         direction)
1789 {
1790   if (editable->selection_start_pos != editable->selection_end_pos)
1791     gtk_editable_delete_selection (editable);
1792   else
1793     {
1794       gint old_pos = editable->current_pos;
1795       if (direction >= 0)
1796         {
1797           gtk_entry_move_cursor (editable, 1, 0);
1798           gtk_editable_delete_text (editable, old_pos, editable->current_pos);
1799         }
1800       else
1801         {
1802           gtk_entry_move_cursor (editable, -1, 0);
1803           gtk_editable_delete_text (editable, editable->current_pos, old_pos);
1804         }
1805     }
1806 }
1807
1808 static void
1809 gtk_delete_forward_character (GtkEntry *entry)
1810 {
1811   gtk_entry_kill_char (GTK_EDITABLE (entry), 1);
1812 }
1813
1814 static void
1815 gtk_delete_backward_character (GtkEntry *entry)
1816 {
1817   gtk_entry_kill_char (GTK_EDITABLE (entry), -1);
1818 }
1819
1820 static void
1821 gtk_entry_kill_word (GtkEditable *editable,
1822                      gint         direction)
1823 {
1824   if (editable->selection_start_pos != editable->selection_end_pos)
1825     gtk_editable_delete_selection (editable);
1826   else
1827     {
1828       gint old_pos = editable->current_pos;
1829       if (direction >= 0)
1830         {
1831           gtk_entry_move_word (editable, 1);
1832           gtk_editable_delete_text (editable, old_pos, editable->current_pos);
1833         }
1834       else
1835         {
1836           gtk_entry_move_word (editable, -1);
1837           gtk_editable_delete_text (editable, editable->current_pos, old_pos);
1838         }
1839     }
1840 }
1841
1842 static void
1843 gtk_delete_forward_word (GtkEntry *entry)
1844 {
1845   gtk_entry_kill_word (GTK_EDITABLE (entry), 1);
1846 }
1847
1848 static void
1849 gtk_delete_backward_word (GtkEntry *entry)
1850 {
1851   gtk_entry_kill_word (GTK_EDITABLE (entry), -1);
1852 }
1853
1854 static void
1855 gtk_entry_kill_line (GtkEditable *editable,
1856                      gint         direction)
1857 {
1858   gint old_pos = editable->current_pos;
1859   if (direction >= 0)
1860     {
1861       gtk_entry_move_to_column (editable, -1);
1862       gtk_editable_delete_text (editable, old_pos, editable->current_pos);
1863     }
1864   else
1865     {
1866       gtk_entry_move_to_column (editable, 0);
1867       gtk_editable_delete_text (editable, editable->current_pos, old_pos);
1868     }
1869 }
1870
1871 static void
1872 gtk_delete_line (GtkEntry *entry)
1873 {
1874   gtk_entry_move_to_column (GTK_EDITABLE (entry), 0);
1875   gtk_entry_kill_line (GTK_EDITABLE (entry), 1);
1876 }
1877
1878 static void
1879 gtk_delete_to_line_end (GtkEntry *entry)
1880 {
1881   gtk_editable_delete_text (GTK_EDITABLE(entry), GTK_EDITABLE(entry)->current_pos, entry->text_length);
1882 }
1883
1884 static void
1885 gtk_select_word (GtkEntry *entry,
1886                  guint32   time)
1887 {
1888   GtkEditable *editable;
1889   gint start_pos;
1890   gint end_pos;
1891
1892   editable = GTK_EDITABLE (entry);
1893
1894   gtk_move_backward_word (entry);
1895   start_pos = editable->current_pos;
1896
1897   gtk_move_forward_word (entry);
1898   end_pos = editable->current_pos;
1899
1900   editable->has_selection = TRUE;
1901   gtk_entry_set_selection (editable, start_pos, end_pos);
1902   gtk_editable_claim_selection (editable, start_pos != end_pos, time);
1903 }
1904
1905 static void
1906 gtk_select_line (GtkEntry *entry,
1907                  guint32   time)
1908 {
1909   GtkEditable *editable;
1910
1911   editable = GTK_EDITABLE (entry);
1912
1913   editable->has_selection = TRUE;
1914   gtk_entry_set_selection (editable, 0, entry->text_length);
1915   gtk_editable_claim_selection (editable, entry->text_length != 0, time);
1916
1917   editable->current_pos = editable->selection_end_pos;
1918 }
1919
1920 static void
1921 gtk_entry_set_selection (GtkEditable       *editable,
1922                          gint               start,
1923                          gint               end)
1924 {
1925   GtkEntry *entry;
1926
1927   g_return_if_fail (editable != NULL);
1928   g_return_if_fail (GTK_IS_ENTRY (editable));
1929
1930   entry = GTK_ENTRY (editable);
1931
1932   if (end < 0)
1933     end = GTK_ENTRY (editable)->text_length;
1934
1935   editable->selection_start_pos = start;
1936   editable->selection_end_pos = end;
1937
1938   gtk_entry_queue_draw (GTK_ENTRY (editable));
1939 }
1940
1941 void
1942 gtk_entry_select_region  (GtkEntry       *entry,
1943                           gint            start,
1944                           gint            end)
1945 {
1946   gtk_editable_select_region (GTK_EDITABLE (entry), start, end);
1947 }
1948
1949 void
1950 gtk_entry_set_max_length (GtkEntry     *entry,
1951                           guint16       max)
1952 {
1953   g_return_if_fail (entry != NULL);
1954   g_return_if_fail (GTK_IS_ENTRY (entry));
1955
1956   if (max && entry->text_length > max)
1957     gtk_editable_delete_text (GTK_EDITABLE(entry), max, -1);
1958
1959   entry->text_max_length = max;
1960 }
1961
1962
1963 static void
1964 gtk_entry_style_set     (GtkWidget      *widget,
1965                          GtkStyle       *previous_style)
1966 {
1967   GtkEntry *entry = GTK_ENTRY (widget);
1968
1969   if (previous_style && GTK_WIDGET_REALIZED (widget))
1970     {
1971       entry_adjust_scroll (entry);
1972
1973       gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1974       gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
1975     }
1976
1977   if (entry->layout)
1978     pango_layout_context_changed (entry->layout);
1979 }
1980
1981 static void
1982 gtk_entry_direction_changed (GtkWidget        *widget,
1983                              GtkTextDirection  previous_dir)
1984 {
1985   GtkEntry *entry = GTK_ENTRY (widget);
1986
1987   if (entry->layout)
1988     pango_layout_context_changed (entry->layout);
1989
1990   GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
1991 }
1992
1993 static void
1994 gtk_entry_state_changed (GtkWidget      *widget,
1995                          GtkStateType    previous_state)
1996 {
1997   g_return_if_fail (widget != NULL);
1998   g_return_if_fail (GTK_IS_ENTRY (widget));
1999
2000   if (GTK_WIDGET_REALIZED (widget))
2001     {
2002       gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
2003       gdk_window_set_background (GTK_ENTRY (widget)->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
2004     }
2005
2006   if (GTK_WIDGET_DRAWABLE (widget))
2007     gtk_widget_queue_clear(widget);
2008 }
2009
2010 static void
2011 gtk_entry_commit_cb (GtkIMContext *context,
2012                      const gchar  *str,
2013                      GtkEntry     *entry)
2014 {
2015   GtkEditable *editable = GTK_EDITABLE (entry);
2016   gint tmp_pos = editable->current_pos;
2017
2018   gtk_editable_insert_text (editable, str, strlen (str), &tmp_pos);
2019   editable->current_pos = tmp_pos;
2020 }
2021