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 #include <ctype.h>
  20 #include <string.h>
  21 #ifdef USE_XIM
  22 #include "gdk/gdkx.h"
  23 #endif
  24 #include "gdk/gdkkeysyms.h"
  25 #include "gdk/gdki18n.h"
  26 #include "gtkentry.h"
  27 #include "gtkmain.h"
  28 #include "gtkselection.h"
  29 #include "gtksignal.h"
  30 #include "gtkprivate.h"
  31
  32 #define MIN_ENTRY_WIDTH  150
  33 #define DRAW_TIMEOUT     20
  34 #define INNER_BORDER     2
  35
  36 static void gtk_entry_class_init          (GtkEntryClass     *klass);
  37 static void gtk_entry_init                (GtkEntry          *entry);
  38 static void gtk_entry_finalize            (GtkObject         *object);
  39 static void gtk_entry_realize             (GtkWidget         *widget);
  40 static void gtk_entry_unrealize           (GtkWidget         *widget);
  41 static void gtk_entry_draw_focus          (GtkWidget         *widget);
  42 static void gtk_entry_size_request        (GtkWidget         *widget,
  43                                            GtkRequisition    *requisition);
  44 static void gtk_entry_size_allocate       (GtkWidget         *widget,
  45                                            GtkAllocation     *allocation);
  46 static void gtk_entry_make_backing_pixmap (GtkEntry *entry,
  47                                            gint width, gint height);
  48 static void gtk_entry_draw                (GtkWidget         *widget,
  49                                            GdkRectangle      *area);
  50 static gint gtk_entry_expose              (GtkWidget         *widget,
  51                                            GdkEventExpose    *event);
  52 static gint gtk_entry_button_press        (GtkWidget         *widget,
  53                                            GdkEventButton    *event);
  54 static gint gtk_entry_button_release      (GtkWidget         *widget,
  55                                            GdkEventButton    *event);
  56 static gint gtk_entry_motion_notify       (GtkWidget         *widget,
  57                                            GdkEventMotion    *event);
  58 static gint gtk_entry_key_press           (GtkWidget         *widget,
  59                                            GdkEventKey       *event);
  60 static gint gtk_entry_focus_in            (GtkWidget         *widget,
  61                                            GdkEventFocus     *event);
  62 static gint gtk_entry_focus_out           (GtkWidget         *widget,
  63                                            GdkEventFocus     *event);
  64 static void gtk_entry_draw_text           (GtkEntry          *entry);
  65 static void gtk_entry_draw_cursor         (GtkEntry          *entry);
  66 static void gtk_entry_draw_cursor_on_drawable
  67                                           (GtkEntry          *entry,
  68                                            GdkDrawable       *drawable);
  69 static void gtk_entry_style_set           (GtkWidget         *widget,
  70                                            GtkStyle          *previous_style);
  71 static void gtk_entry_queue_draw          (GtkEntry          *entry);
  72 static gint gtk_entry_timer               (gpointer           data);
  73 static gint gtk_entry_position            (GtkEntry          *entry,
  74                                            gint               x);
  75 void gtk_entry_adjust_scroll       (GtkEntry          *entry);
  76 static void gtk_entry_grow_text           (GtkEntry          *entry);
  77 static void gtk_entry_insert_text         (GtkEditable       *editable,
  78                                            const gchar       *new_text,
  79                                            gint               new_text_length,
  80                                            gint              *position);
  81 static void gtk_entry_delete_text         (GtkEditable       *editable,
  82                                            gint               start_pos,
  83                                            gint               end_pos);
  84 static void gtk_entry_update_text         (GtkEditable       *editable,
  85                                            gint               start_pos,
  86                                            gint               end_pos);
  87 static gchar *gtk_entry_get_chars         (GtkEditable       *editable,
  88                                            gint               start_pos,
  89                                            gint               end_pos);
  90
  91 /* Binding actions */
  92 static void gtk_entry_move_cursor         (GtkEditable *editable,
  93                                            gint         x,
  94                                            gint         y);
  95 static void gtk_entry_move_word           (GtkEditable *editable,
  96                                            gint         n);
  97 static void gtk_entry_move_to_column      (GtkEditable *editable,
  98                                            gint         row);
  99 static void gtk_entry_kill_char           (GtkEditable *editable,
 100                                            gint         direction);
 101 static void gtk_entry_kill_word           (GtkEditable *editable,
 102                                            gint         direction);
 103 static void gtk_entry_kill_line           (GtkEditable *editable,
 104                                            gint         direction);
 105
 106 /* To be removed */
 107 static void gtk_move_forward_character    (GtkEntry          *entry);
 108 static void gtk_move_backward_character   (GtkEntry          *entry);
 109 static void gtk_move_forward_word         (GtkEntry          *entry);
 110 static void gtk_move_backward_word        (GtkEntry          *entry);
 111 static void gtk_move_beginning_of_line    (GtkEntry          *entry);
 112 static void gtk_move_end_of_line          (GtkEntry          *entry);
 113 static void gtk_delete_forward_character  (GtkEntry          *entry);
 114 static void gtk_delete_backward_character (GtkEntry          *entry);
 115 static void gtk_delete_forward_word       (GtkEntry          *entry);
 116 static void gtk_delete_backward_word      (GtkEntry          *entry);
 117 static void gtk_delete_line               (GtkEntry          *entry);
 118 static void gtk_delete_to_line_end        (GtkEntry          *entry);
 119 static void gtk_select_word               (GtkEntry          *entry,
 120                                            guint32            time);
 121 static void gtk_select_line               (GtkEntry          *entry,
 122                                            guint32            time);
 123
 124
 125 static void gtk_entry_set_selection       (GtkEditable       *editable,
 126                                            gint               start,
 127                                            gint               end);
 128
 129 static void gtk_entry_recompute_offsets   (GtkEntry          *entry);
 130 static gint gtk_entry_find_char           (GtkEntry          *entry,
 131                                            gint               position);
 132 static gint gtk_entry_find_position       (GtkEntry          *entry,
 133                                            gint               position);
 134 static void gtk_entry_set_position_from_editable (GtkEditable *editable,
 135                                                   gint         position);
 136
 137 static GtkWidgetClass *parent_class = NULL;
 138 static GdkAtom ctext_atom = GDK_NONE;
 139
 140 static GtkTextFunction control_keys[26] =
 141 {
 142   (GtkTextFunction)gtk_move_beginning_of_line,    /* a */
 143   (GtkTextFunction)gtk_move_backward_character,   /* b */
 144   (GtkTextFunction)gtk_editable_copy_clipboard,   /* c */
 145   (GtkTextFunction)gtk_delete_forward_character,  /* d */
 146   (GtkTextFunction)gtk_move_end_of_line,          /* e */
 147   (GtkTextFunction)gtk_move_forward_character,    /* f */
 148   NULL,                                           /* g */
 149   (GtkTextFunction)gtk_delete_backward_character, /* h */
 150   NULL,                                           /* i */
 151   NULL,                                           /* j */
 152   (GtkTextFunction)gtk_delete_to_line_end,        /* k */
 153   NULL,                                           /* l */
 154   NULL,                                           /* m */
 155   NULL,                                           /* n */
 156   NULL,                                           /* o */
 157   NULL,                                           /* p */
 158   NULL,                                           /* q */
 159   NULL,                                           /* r */
 160   NULL,                                           /* s */
 161   NULL,                                           /* t */
 162   (GtkTextFunction)gtk_delete_line,               /* u */
 163   (GtkTextFunction)gtk_editable_paste_clipboard,  /* v */
 164   (GtkTextFunction)gtk_delete_backward_word,      /* w */
 165   (GtkTextFunction)gtk_editable_cut_clipboard,    /* x */
 166   NULL,                                           /* y */
 167   NULL,                                           /* z */
 168 };
 169
 170 static GtkTextFunction alt_keys[26] =
 171 {
 172   NULL,                                           /* a */
 173   (GtkTextFunction)gtk_move_backward_word,        /* b */
 174   NULL,                                           /* c */
 175   (GtkTextFunction)gtk_delete_forward_word,       /* d */
 176   NULL,                                           /* e */
 177   (GtkTextFunction)gtk_move_forward_word,         /* f */
 178   NULL,                                           /* g */
 179   NULL,                                           /* h */
 180   NULL,                                           /* i */
 181   NULL,                                           /* j */
 182   NULL,                                           /* k */
 183   NULL,                                           /* l */
 184   NULL,                                           /* m */
 185   NULL,                                           /* n */
 186   NULL,                                           /* o */
 187   NULL,                                           /* p */
 188   NULL,                                           /* q */
 189   NULL,                                           /* r */
 190   NULL,                                           /* s */
 191   NULL,                                           /* t */
 192   NULL,                                           /* u */
 193   NULL,                                           /* v */
 194   NULL,                                           /* w */
 195   NULL,                                           /* x */
 196   NULL,                                           /* y */
 197   NULL,                                           /* z */
 198 };
 199
 200
 201 guint
 202 gtk_entry_get_type (void)
 203 {
 204   static guint entry_type = 0;
 205
 206   if (!entry_type)
 207     {
 208       GtkTypeInfo entry_info =
 209       {
 210         "GtkEntry",
 211         sizeof (GtkEntry),
 212         sizeof (GtkEntryClass),
 213         (GtkClassInitFunc) gtk_entry_class_init,
 214         (GtkObjectInitFunc) gtk_entry_init,
 215         (GtkArgSetFunc) NULL,
 216         (GtkArgGetFunc) NULL,
 217       };
 218
 219       entry_type = gtk_type_unique (gtk_editable_get_type (), &entry_info);
 220     }
 221
 222   return entry_type;
 223 }
 224
 225 static void
 226 gtk_entry_class_init (GtkEntryClass *class)
 227 {
 228   GtkObjectClass *object_class;
 229   GtkWidgetClass *widget_class;
 230   GtkEditableClass *editable_class;
 231
 232   object_class = (GtkObjectClass*) class;
 233   widget_class = (GtkWidgetClass*) class;
 234   editable_class = (GtkEditableClass*) class;
 235
 236   parent_class = gtk_type_class (gtk_editable_get_type ());
 237
 238   object_class->finalize = gtk_entry_finalize;
 239
 240   widget_class->realize = gtk_entry_realize;
 241   widget_class->unrealize = gtk_entry_unrealize;
 242   widget_class->draw_focus = gtk_entry_draw_focus;
 243   widget_class->size_request = gtk_entry_size_request;
 244   widget_class->size_allocate = gtk_entry_size_allocate;
 245   widget_class->draw = gtk_entry_draw;
 246   widget_class->expose_event = gtk_entry_expose;
 247   widget_class->button_press_event = gtk_entry_button_press;
 248   widget_class->button_release_event = gtk_entry_button_release;
 249   widget_class->motion_notify_event = gtk_entry_motion_notify;
 250   widget_class->key_press_event = gtk_entry_key_press;
 251   widget_class->focus_in_event = gtk_entry_focus_in;
 252   widget_class->focus_out_event = gtk_entry_focus_out;
 253   widget_class->style_set    = gtk_entry_style_set;
 254
 255   editable_class->insert_text = gtk_entry_insert_text;
 256   editable_class->delete_text = gtk_entry_delete_text;
 257   editable_class->changed = (void (*)(GtkEditable *)) gtk_entry_adjust_scroll;
 258
 259   editable_class->move_cursor = gtk_entry_move_cursor;
 260   editable_class->move_word = gtk_entry_move_word;
 261   editable_class->move_to_column = gtk_entry_move_to_column;
 262
 263   editable_class->kill_char = gtk_entry_kill_char;
 264   editable_class->kill_word = gtk_entry_kill_word;
 265   editable_class->kill_line = gtk_entry_kill_line;
 266
 267   editable_class->update_text = gtk_entry_update_text;
 268   editable_class->get_chars   = gtk_entry_get_chars;
 269   editable_class->set_selection = gtk_entry_set_selection;
 270   editable_class->set_position = gtk_entry_set_position_from_editable;
 271 }
 272
 273 static void
 274 gtk_entry_init (GtkEntry *entry)
 275 {
 276   GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS);
 277
 278   entry->text_area = NULL;
 279   entry->backing_pixmap = NULL;
 280   entry->text = NULL;
 281   entry->text_size = 0;
 282   entry->text_length = 0;
 283   entry->text_max_length = 0;
 284   entry->scroll_offset = 0;
 285   entry->timer = 0;
 286   entry->button = 0;
 287   entry->visible = 1;
 288
 289   entry->nchars = 0;
 290   entry->char_pos = NULL;
 291   entry->char_offset = NULL;
 292
 293   gtk_entry_grow_text (entry);
 294 }
 295
 296 GtkWidget*
 297 gtk_entry_new (void)
 298 {
 299   return GTK_WIDGET (gtk_type_new (gtk_entry_get_type ()));
 300 }
 301
 302 GtkWidget*
 303 gtk_entry_new_with_max_length (guint16 max)
 304 {
 305   GtkEntry *entry;
 306   entry = gtk_type_new (gtk_entry_get_type ());
 307   entry->text_max_length = max;
 308   return GTK_WIDGET (entry);
 309 }
 310
 311 void
 312 gtk_entry_set_text (GtkEntry *entry,
 313                     const gchar *text)
 314 {
 315   gint tmp_pos;
 316
 317   GtkEditable *editable;
 318
 319   g_return_if_fail (entry != NULL);
 320   g_return_if_fail (GTK_IS_ENTRY (entry));
 321   g_return_if_fail (text != NULL);
 322
 323   editable = GTK_EDITABLE (entry);
 324
 325   gtk_entry_delete_text (GTK_EDITABLE(entry), 0, entry->text_length);
 326
 327   tmp_pos = 0;
 328   gtk_editable_insert_text (editable, text, strlen (text), &tmp_pos);
 329   editable->current_pos = tmp_pos;
 330
 331   editable->selection_start_pos = 0;
 332   editable->selection_end_pos = 0;
 333
 334   if (GTK_WIDGET_DRAWABLE (entry))
 335     gtk_entry_draw_text (entry);
 336 }
 337
 338 void
 339 gtk_entry_append_text (GtkEntry *entry,
 340                        const gchar *text)
 341 {
 342   gint tmp_pos;
 343
 344   g_return_if_fail (entry != NULL);
 345   g_return_if_fail (GTK_IS_ENTRY (entry));
 346   g_return_if_fail (text != NULL);
 347
 348   tmp_pos = entry->text_length;
 349   gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos);
 350   GTK_EDITABLE(entry)->current_pos = tmp_pos;
 351 }
 352
 353 void
 354 gtk_entry_prepend_text (GtkEntry *entry,
 355                         const gchar *text)
 356 {
 357   gint tmp_pos;
 358
 359   g_return_if_fail (entry != NULL);
 360   g_return_if_fail (GTK_IS_ENTRY (entry));
 361   g_return_if_fail (text != NULL);
 362
 363   tmp_pos = 0;
 364   gtk_editable_insert_text (GTK_EDITABLE(entry), text, strlen (text), &tmp_pos);
 365   GTK_EDITABLE(entry)->current_pos = tmp_pos;
 366 }
 367
 368 void
 369 gtk_entry_set_position (GtkEntry *entry,
 370                         gint      position)
 371 {
 372   g_return_if_fail (entry != NULL);
 373   g_return_if_fail (GTK_IS_ENTRY (entry));
 374
 375   if ((position == -1) || (position > entry->text_length))
 376     GTK_EDITABLE(entry)->current_pos = entry->text_length;
 377   else
 378     GTK_EDITABLE(entry)->current_pos = position;
 379 }
 380
 381 static void
 382 gtk_entry_set_position_from_editable (GtkEditable *editable,
 383                                       gint position)
 384 {
 385   gtk_entry_set_position (GTK_ENTRY (editable), position);
 386 }
 387
 388 void
 389 gtk_entry_set_visibility (GtkEntry *entry,
 390                           gboolean visible)
 391 {
 392   g_return_if_fail (entry != NULL);
 393   g_return_if_fail (GTK_IS_ENTRY (entry));
 394
 395   entry->visible = visible;
 396   gtk_entry_recompute_offsets (entry);
 397   gtk_widget_queue_draw (GTK_WIDGET (entry));
 398 }
 399
 400 void
 401 gtk_entry_set_editable(GtkEntry *entry,
 402                        gboolean editable)
 403 {
 404   g_return_if_fail (entry != NULL);
 405   g_return_if_fail (GTK_IS_ENTRY (entry));
 406
 407   GTK_EDITABLE (entry)->editable = editable;
 408   gtk_entry_queue_draw (entry);
 409 }
 410
 411 gchar*
 412 gtk_entry_get_text (GtkEntry *entry)
 413 {
 414   static char empty_str[2] = "";
 415
 416   g_return_val_if_fail (entry != NULL, NULL);
 417   g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL);
 418
 419   if (!entry->text)
 420     return empty_str;
 421   return entry->text;
 422 }
 423
 424 static void
 425 gtk_entry_finalize (GtkObject *object)
 426 {
 427   GtkEntry *entry;
 428
 429   g_return_if_fail (object != NULL);
 430   g_return_if_fail (GTK_IS_ENTRY (object));
 431
 432   entry = GTK_ENTRY (object);
 433
 434 #ifdef USE_XIM
 435   if (GTK_EDITABLE(entry)->ic)
 436     {
 437       gdk_ic_destroy (GTK_EDITABLE(entry)->ic);
 438       GTK_EDITABLE(entry)->ic = NULL;
 439     }
 440 #endif
 441
 442   if (entry->timer)
 443     gtk_timeout_remove (entry->timer);
 444
 445   entry->text_size = 0;
 446   if (entry->text)
 447     g_free (entry->text);
 448   if (entry->char_pos)
 449     g_free (entry->char_pos);
 450   if (entry->char_offset)
 451     g_free (entry->char_offset);
 452   entry->text = NULL;
 453
 454   if (entry->backing_pixmap)
 455     gdk_pixmap_unref (entry->backing_pixmap);
 456
 457   (* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
 458 }
 459
 460 static void
 461 gtk_entry_realize (GtkWidget *widget)
 462 {
 463   GtkEntry *entry;
 464   GtkEditable *editable;
 465   GdkWindowAttr attributes;
 466   gint attributes_mask;
 467
 468   g_return_if_fail (widget != NULL);
 469   g_return_if_fail (GTK_IS_ENTRY (widget));
 470
 471   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 472   entry = GTK_ENTRY (widget);
 473   editable = GTK_EDITABLE (widget);
 474
 475   attributes.window_type = GDK_WINDOW_CHILD;
 476   attributes.x = widget->allocation.x;
 477   attributes.y = widget->allocation.y + (widget->allocation.height -
 478                                          widget->requisition.height) / 2;
 479   attributes.width = widget->allocation.width;
 480   attributes.height = widget->requisition.height;
 481   attributes.wclass = GDK_INPUT_OUTPUT;
 482   attributes.visual = gtk_widget_get_visual (widget);
 483   attributes.colormap = gtk_widget_get_colormap (widget);
 484   attributes.event_mask = gtk_widget_get_events (widget);
 485   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 486                             GDK_BUTTON_PRESS_MASK |
 487                             GDK_BUTTON_RELEASE_MASK |
 488                             GDK_BUTTON1_MOTION_MASK |
 489                             GDK_BUTTON3_MOTION_MASK |
 490                             GDK_POINTER_MOTION_HINT_MASK |
 491                             GDK_ENTER_NOTIFY_MASK |
 492                             GDK_LEAVE_NOTIFY_MASK |
 493                             GDK_KEY_PRESS_MASK);
 494   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 495
 496   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
 497   gdk_window_set_user_data (widget->window, entry);
 498
 499   attributes.x = widget->style->klass->xthickness + INNER_BORDER;
 500   attributes.y = widget->style->klass->ythickness + INNER_BORDER;
 501   attributes.width = widget->allocation.width - attributes.x * 2;
 502   attributes.height = widget->requisition.height - attributes.y * 2;
 503   attributes.cursor = entry->cursor = gdk_cursor_new (GDK_XTERM);
 504   attributes_mask |= GDK_WA_CURSOR;
 505
 506   entry->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
 507   gdk_window_set_user_data (entry->text_area, entry);
 508
 509   widget->style = gtk_style_attach (widget->style, widget->window);
 510
 511   gdk_window_set_background (widget->window, &widget->style->base[GTK_STATE_NORMAL]);
 512   gdk_window_set_background (entry->text_area, &widget->style->base[GTK_STATE_NORMAL]);
 513
 514 #ifdef USE_XIM
 515   if (gdk_im_ready ())
 516     {
 517       GdkPoint spot;
 518       GdkRectangle rect;
 519       gint width, height;
 520       GdkEventMask mask;
 521       GdkIMStyle style;
 522       GdkIMStyle supported_style = GdkIMPreeditNone | GdkIMPreeditNothing |
 523                         GdkIMPreeditPosition |
 524                         GdkIMStatusNone | GdkIMStatusNothing;
 525
 526       if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
 527         supported_style &= ~GdkIMPreeditPosition;
 528
 529       style = gdk_im_decide_style (supported_style);
 530       switch (style & GdkIMPreeditMask)
 531         {
 532         case GdkIMPreeditPosition:
 533           if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
 534             {
 535               g_warning ("over-the-spot style requires fontset");
 536               break;
 537             }
 538           gdk_window_get_size (entry->text_area, &width, &height);
 539           rect.x = 0;
 540           rect.y = 0;
 541           rect.width = width;
 542           rect.height = height;
 543           spot.x = 0;
 544           spot.y = height;
 545           editable->ic = gdk_ic_new (entry->text_area, entry->text_area,
 546                                style,
 547                                "spotLocation", &spot,
 548                                "area", &rect,
 549                                "fontSet", GDK_FONT_XFONT (widget->style->font),
 550                                NULL);
 551           break;
 552         default:
 553           editable->ic = gdk_ic_new (entry->text_area, entry->text_area,
 554                                   style, NULL);
 555         }
 556
 557       if (editable->ic == NULL)
 558         g_warning ("Can't create input context.");
 559       else
 560         {
 561           GdkColormap *colormap;
 562
 563           mask = gdk_window_get_events (entry->text_area);
 564           mask |= gdk_ic_get_events (editable->ic);
 565           gdk_window_set_events (entry->text_area, mask);
 566
 567           if ((colormap = gtk_widget_get_colormap (widget)) !=
 568                 gtk_widget_get_default_colormap ())
 569             {
 570               gdk_ic_set_attr (editable->ic, "preeditAttributes",
 571                                "colorMap", GDK_COLORMAP_XCOLORMAP (colormap),
 572                                NULL);
 573             }
 574           gdk_ic_set_attr (editable->ic,"preeditAttributes",
 575                      "foreground", widget->style->fg[GTK_STATE_NORMAL].pixel,
 576                      "background", widget->style->base[GTK_STATE_NORMAL].pixel,
 577                      NULL);
 578         }
 579     }
 580 #endif
 581
 582   gdk_window_show (entry->text_area);
 583
 584   if (editable->selection_start_pos != editable->selection_end_pos)
 585     gtk_editable_claim_selection (editable, TRUE, GDK_CURRENT_TIME);
 586
 587   gtk_entry_recompute_offsets (entry);
 588 }
 589
 590 static void
 591 gtk_entry_unrealize (GtkWidget *widget)
 592 {
 593   GtkEntry *entry;
 594
 595   g_return_if_fail (widget != NULL);
 596   g_return_if_fail (GTK_IS_ENTRY (widget));
 597
 598   entry = GTK_ENTRY (widget);
 599
 600   if (entry->text_area)
 601     {
 602       gdk_window_set_user_data (entry->text_area, NULL);
 603       gdk_window_destroy (entry->text_area);
 604       entry->text_area = NULL;
 605       gdk_cursor_destroy (entry->cursor);
 606       entry->cursor = NULL;
 607     }
 608
 609   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 610     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 611 }
 612
 613 static void
 614 gtk_entry_draw_focus (GtkWidget *widget)
 615 {
 616   gint width, height;
 617   gint x, y;
 618
 619   g_return_if_fail (widget != NULL);
 620   g_return_if_fail (GTK_IS_ENTRY (widget));
 621
 622   if (GTK_WIDGET_DRAWABLE (widget))
 623     {
 624       x = 0;
 625       y = 0;
 626       gdk_window_get_size (widget->window, &width, &height);
 627
 628       if (GTK_WIDGET_HAS_FOCUS (widget))
 629         {
 630           x += 1;
 631           y += 1;
 632           width -= 2;
 633           height -= 2;
 634         }
 635       else
 636         {
 637           gdk_draw_rectangle (widget->window,
 638                               widget->style->base_gc[GTK_WIDGET_STATE(widget)],
 639                               FALSE, x + 2, y + 2, width - 5, height - 5);
 640         }
 641
 642       gtk_draw_shadow (widget->style, widget->window,
 643                        GTK_STATE_NORMAL, GTK_SHADOW_IN,
 644                        x, y, width, height);
 645
 646       if (GTK_WIDGET_HAS_FOCUS (widget))
 647         {
 648           gdk_window_get_size (widget->window, &width, &height);
 649           gdk_draw_rectangle (widget->window, widget->style->fg_gc[GTK_STATE_NORMAL],
 650                               FALSE, 0, 0, width - 1, height - 1);
 651         }
 652
 653       if (GTK_EDITABLE (widget)->editable)
 654         gtk_entry_draw_cursor (GTK_ENTRY (widget));
 655     }
 656 }
 657
 658 static void
 659 gtk_entry_size_request (GtkWidget      *widget,
 660                         GtkRequisition *requisition)
 661 {
 662   g_return_if_fail (widget != NULL);
 663   g_return_if_fail (GTK_IS_ENTRY (widget));
 664   g_return_if_fail (requisition != NULL);
 665
 666   requisition->width = MIN_ENTRY_WIDTH + (widget->style->klass->xthickness + INNER_BORDER) * 2;
 667   requisition->height = (widget->style->font->ascent +
 668                          widget->style->font->descent +
 669                          (widget->style->klass->ythickness + INNER_BORDER) * 2);
 670 }
 671
 672 static void
 673 gtk_entry_size_allocate (GtkWidget     *widget,
 674                          GtkAllocation *allocation)
 675 {
 676   GtkEntry *entry;
 677   GtkEditable *editable;
 678
 679   g_return_if_fail (widget != NULL);
 680   g_return_if_fail (GTK_IS_ENTRY (widget));
 681   g_return_if_fail (allocation != NULL);
 682
 683   widget->allocation = *allocation;
 684   entry = GTK_ENTRY (widget);
 685   editable = GTK_EDITABLE (widget);
 686
 687   if (GTK_WIDGET_REALIZED (widget))
 688     {
 689       gdk_window_move_resize (widget->window,
 690                               allocation->x,
 691                               allocation->y + (allocation->height - widget->requisition.height) / 2,
 692                               allocation->width, widget->requisition.height);
 693       gdk_window_move_resize (entry->text_area,
 694                               widget->style->klass->xthickness + INNER_BORDER,
 695                               widget->style->klass->ythickness + INNER_BORDER,
 696                               allocation->width - (widget->style->klass->xthickness + INNER_BORDER) * 2,
 697                               widget->requisition.height - (widget->style->klass->ythickness + INNER_BORDER) * 2);
 698
 699       /* And make sure the cursor is on screen */
 700       gtk_entry_adjust_scroll (entry);
 701
 702 #ifdef USE_XIM
 703       if (editable->ic && (gdk_ic_get_style (editable->ic) & GdkIMPreeditPosition))
 704         {
 705           gint width, height;
 706           GdkRectangle rect;
 707
 708           gdk_window_get_size (entry->text_area, &width, &height);
 709           rect.x = 0;
 710           rect.y = 0;
 711           rect.width = width;
 712           rect.height = height;
 713           gdk_ic_set_attr (editable->ic, "preeditAttributes", "area", &rect, NULL);
 714         }
 715 #endif
 716     }
 717 }
 718
 719 static void
 720 gtk_entry_draw (GtkWidget    *widget,
 721                 GdkRectangle *area)
 722 {
 723   g_return_if_fail (widget != NULL);
 724   g_return_if_fail (GTK_IS_ENTRY (widget));
 725   g_return_if_fail (area != NULL);
 726
 727   if (GTK_WIDGET_DRAWABLE (widget))
 728     {
 729       gtk_widget_draw_focus (widget);
 730       gtk_entry_draw_text (GTK_ENTRY (widget));
 731     }
 732 }
 733
 734 static gint
 735 gtk_entry_expose (GtkWidget      *widget,
 736                   GdkEventExpose *event)
 737 {
 738   GtkEntry *entry;
 739
 740   g_return_val_if_fail (widget != NULL, FALSE);
 741   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 742   g_return_val_if_fail (event != NULL, FALSE);
 743
 744   entry = GTK_ENTRY (widget);
 745
 746   if (widget->window == event->window)
 747     gtk_widget_draw_focus (widget);
 748   else if (entry->text_area == event->window)
 749     gtk_entry_draw_text (GTK_ENTRY (widget));
 750
 751   return FALSE;
 752 }
 753
 754 static gint
 755 gtk_entry_button_press (GtkWidget      *widget,
 756                         GdkEventButton *event)
 757 {
 758   GtkEntry *entry;
 759   GtkEditable *editable;
 760   gint tmp_pos;
 761
 762   g_return_val_if_fail (widget != NULL, FALSE);
 763   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 764   g_return_val_if_fail (event != NULL, FALSE);
 765
 766   if (ctext_atom == GDK_NONE)
 767     ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
 768
 769   entry = GTK_ENTRY (widget);
 770   editable = GTK_EDITABLE (widget);
 771
 772   if (entry->button && (event->button != entry->button))
 773     return FALSE;
 774
 775   entry->button = event->button;
 776
 777   if (!GTK_WIDGET_HAS_FOCUS (widget))
 778     gtk_widget_grab_focus (widget);
 779
 780   if (event->button == 1)
 781     {
 782       switch (event->type)
 783         {
 784         case GDK_BUTTON_PRESS:
 785           gtk_grab_add (widget);
 786
 787           tmp_pos = gtk_entry_position (entry, event->x + entry->scroll_offset);
 788           /* Set it now, so we display things right. We'll unset it
 789            * later if things don't work out */
 790           editable->has_selection = TRUE;
 791           gtk_entry_set_selection (editable, tmp_pos, tmp_pos);
 792           editable->current_pos = editable->selection_start_pos;
 793           break;
 794
 795         case GDK_2BUTTON_PRESS:
 796           gtk_select_word (entry, event->time);
 797           break;
 798
 799         case GDK_3BUTTON_PRESS:
 800           gtk_select_line (entry, event->time);
 801           break;
 802
 803         default:
 804           break;
 805         }
 806     }
 807   else if (event->type == GDK_BUTTON_PRESS)
 808     {
 809       if ((event->button == 2) && editable->editable)
 810         {
 811           if (editable->selection_start_pos == editable->selection_end_pos ||
 812               editable->has_selection)
 813             editable->current_pos = gtk_entry_position (entry, event->x + entry->scroll_offset);
 814           gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
 815                                  ctext_atom, event->time);
 816         }
 817       else
 818         {
 819           gtk_grab_add (widget);
 820
 821           tmp_pos = gtk_entry_position (entry, event->x + entry->scroll_offset);
 822           gtk_entry_set_selection (editable, tmp_pos, tmp_pos);
 823           editable->has_selection = FALSE;
 824           editable->current_pos = editable->selection_start_pos;
 825
 826           if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
 827             gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
 828         }
 829     }
 830
 831   return FALSE;
 832 }
 833
 834 static gint
 835 gtk_entry_button_release (GtkWidget      *widget,
 836                           GdkEventButton *event)
 837 {
 838   GtkEntry *entry;
 839   GtkEditable *editable;
 840
 841   g_return_val_if_fail (widget != NULL, FALSE);
 842   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 843   g_return_val_if_fail (event != NULL, FALSE);
 844
 845   entry = GTK_ENTRY (widget);
 846   editable = GTK_EDITABLE (widget);
 847
 848   if (entry->button != event->button)
 849     return FALSE;
 850
 851   entry->button = 0;
 852
 853   if (event->button == 1)
 854     {
 855       gtk_grab_remove (widget);
 856
 857       editable->has_selection = FALSE;
 858       if (editable->selection_start_pos != editable->selection_end_pos)
 859         {
 860           if (gtk_selection_owner_set (widget,
 861                                        GDK_SELECTION_PRIMARY,
 862                                        event->time))
 863             editable->has_selection = TRUE;
 864           else
 865             gtk_entry_queue_draw (entry);
 866         }
 867       else
 868         {
 869           if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
 870             gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, event->time);
 871         }
 872     }
 873   else if (event->button == 3)
 874     {
 875       gtk_grab_remove (widget);
 876     }
 877
 878   return FALSE;
 879 }
 880
 881 static gint
 882 gtk_entry_motion_notify (GtkWidget      *widget,
 883                          GdkEventMotion *event)
 884 {
 885   GtkEntry *entry;
 886   gint x;
 887
 888   g_return_val_if_fail (widget != NULL, FALSE);
 889   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
 890   g_return_val_if_fail (event != NULL, FALSE);
 891
 892   entry = GTK_ENTRY (widget);
 893
 894   if (entry->button == 0)
 895     return FALSE;
 896
 897   x = event->x;
 898   if (event->is_hint || (entry->text_area != event->window))
 899     gdk_window_get_pointer (entry->text_area, &x, NULL, NULL);
 900
 901   GTK_EDITABLE(entry)->selection_end_pos = gtk_entry_position (entry, x + entry->scroll_offset);
 902   GTK_EDITABLE(entry)->current_pos = GTK_EDITABLE(entry)->selection_end_pos;
 903   gtk_entry_adjust_scroll (entry);
 904   gtk_entry_queue_draw (entry);
 905
 906   return FALSE;
 907 }
 908
 909 static gint
 910 gtk_entry_key_press (GtkWidget   *widget,
 911                      GdkEventKey *event)
 912 {
 913   GtkEntry *entry;
 914   GtkEditable *editable;
 915
 916   gint return_val;
 917   gint key;
 918   guint initial_pos;
 919   gint extend_selection;
 920   gint extend_start;
 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   editable = GTK_EDITABLE (widget);
 928   return_val = FALSE;
 929
 930   if(editable->editable == FALSE)
 931     return FALSE;
 932
 933   initial_pos = editable->current_pos;
 934
 935   extend_selection = event->state & GDK_SHIFT_MASK;
 936   extend_start = FALSE;
 937
 938   if (extend_selection)
 939     {
 940       if (editable->selection_start_pos == editable->selection_end_pos)
 941         {
 942           editable->selection_start_pos = editable->current_pos;
 943           editable->selection_end_pos = editable->current_pos;
 944         }
 945
 946       extend_start = (editable->current_pos == editable->selection_start_pos);
 947     }
 948
 949   switch (event->keyval)
 950     {
 951     case GDK_BackSpace:
 952       return_val = TRUE;
 953       if (event->state & GDK_CONTROL_MASK)
 954         gtk_delete_backward_word (entry);
 955       else
 956         gtk_delete_backward_character (entry);
 957       break;
 958     case GDK_Clear:
 959       return_val = TRUE;
 960       gtk_delete_line (entry);
 961       break;
 962     case GDK_Insert:
 963       return_val = TRUE;
 964       if (event->state & GDK_SHIFT_MASK)
 965         {
 966           extend_selection = FALSE;
 967           gtk_editable_paste_clipboard (editable);
 968         }
 969       else if (event->state & GDK_CONTROL_MASK)
 970         {
 971           gtk_editable_copy_clipboard (editable);
 972         }
 973       else
 974         {
 975           /* gtk_toggle_insert(entry) -- IMPLEMENT */
 976         }
 977       break;
 978     case GDK_Delete:
 979       return_val = TRUE;
 980       if (event->state & GDK_CONTROL_MASK)
 981         gtk_delete_forward_word (entry);
 982       else if (event->state & GDK_SHIFT_MASK)
 983         {
 984           extend_selection = FALSE;
 985           gtk_editable_cut_clipboard (editable);
 986         }
 987       else
 988         gtk_delete_forward_character (entry);
 989       break;
 990     case GDK_Home:
 991       return_val = TRUE;
 992       gtk_move_beginning_of_line (entry);
 993       break;
 994     case GDK_End:
 995       return_val = TRUE;
 996       gtk_move_end_of_line (entry);
 997       break;
 998     case GDK_Left:
 999       return_val = TRUE;
1000       if (event->state & GDK_CONTROL_MASK)
1001         gtk_move_backward_word (entry);
1002       else
1003         gtk_move_backward_character (entry);
1004       break;
1005     case GDK_Right:
1006       return_val = TRUE;
1007       if (event->state & GDK_CONTROL_MASK)
1008         gtk_move_forward_word (entry);
1009       else
1010         gtk_move_forward_character (entry);
1011       break;
1012     case GDK_Return:
1013       return_val = TRUE;
1014       gtk_signal_emit_by_name (GTK_OBJECT (entry), "activate");
1015       break;
1016     /* The next two keys should not be inserted literally. Any others ??? */
1017     case GDK_Tab:
1018     case GDK_Escape:
1019       break;
1020     default:
1021       if ((event->keyval >= 0x20) && (event->keyval <= 0xFF))
1022         {
1023           key = event->keyval;
1024
1025           if (event->state & GDK_CONTROL_MASK)
1026             {
1027               if ((key >= 'A') && (key <= 'Z'))
1028                 key -= 'A' - 'a';
1029
1030               if ((key >= 'a') && (key <= 'z') && control_keys[key - 'a'])
1031                 {
1032                   (* control_keys[key - 'a']) (editable, event->time);
1033                   return_val = TRUE;
1034                 }
1035               break;
1036             }
1037           else if (event->state & GDK_MOD1_MASK)
1038             {
1039               if ((key >= 'A') && (key <= 'Z'))
1040                 key -= 'A' - 'a';
1041
1042               if ((key >= 'a') && (key <= 'z') && alt_keys[key - 'a'])
1043                 {
1044                   (* alt_keys[key - 'a']) (editable, event->time);
1045                   return_val = TRUE;
1046                 }
1047               break;
1048             }
1049         }
1050       if (event->length > 0)
1051         {
1052           gint tmp_pos;
1053
1054           extend_selection = FALSE;
1055           gtk_editable_delete_selection (editable);
1056
1057           tmp_pos = editable->current_pos;
1058           gtk_editable_insert_text (editable, event->string, event->length, &tmp_pos);
1059           editable->current_pos = tmp_pos;
1060
1061           return_val = TRUE;
1062         }
1063       break;
1064     }
1065
1066   if (return_val && (editable->current_pos != initial_pos))
1067     {
1068       if (extend_selection)
1069         {
1070           if (editable->current_pos < editable->selection_start_pos)
1071             editable->selection_start_pos = editable->current_pos;
1072           else if (editable->current_pos > editable->selection_end_pos)
1073             editable->selection_end_pos = editable->current_pos;
1074           else
1075             {
1076               if (extend_start)
1077                 editable->selection_start_pos = editable->current_pos;
1078               else
1079                 editable->selection_end_pos = editable->current_pos;
1080             }
1081         }
1082       else
1083         {
1084           editable->selection_start_pos = 0;
1085           editable->selection_end_pos = 0;
1086         }
1087
1088       gtk_editable_claim_selection (editable,
1089                                     editable->selection_start_pos != editable->selection_end_pos,
1090                                     event->time);
1091
1092       gtk_entry_adjust_scroll (entry);
1093       gtk_entry_queue_draw (entry);
1094     }
1095
1096   return return_val;
1097 }
1098
1099 static gint
1100 gtk_entry_focus_in (GtkWidget     *widget,
1101                     GdkEventFocus *event)
1102 {
1103   g_return_val_if_fail (widget != NULL, FALSE);
1104   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
1105   g_return_val_if_fail (event != NULL, FALSE);
1106
1107   GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
1108   gtk_widget_draw_focus (widget);
1109
1110 #ifdef USE_XIM
1111   if (GTK_EDITABLE(widget)->ic)
1112     gdk_im_begin (GTK_EDITABLE(widget)->ic, GTK_ENTRY(widget)->text_area);
1113 #endif
1114
1115   return FALSE;
1116 }
1117
1118 static gint
1119 gtk_entry_focus_out (GtkWidget     *widget,
1120                      GdkEventFocus *event)
1121 {
1122   g_return_val_if_fail (widget != NULL, FALSE);
1123   g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
1124   g_return_val_if_fail (event != NULL, FALSE);
1125
1126   GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
1127   gtk_widget_draw_focus (widget);
1128
1129 #ifdef USE_XIM
1130   gdk_im_end ();
1131 #endif
1132
1133   return FALSE;
1134 }
1135
1136 static void
1137 gtk_entry_make_backing_pixmap (GtkEntry *entry, gint width, gint height)
1138 {
1139   gint pixmap_width, pixmap_height;
1140
1141   if (!entry->backing_pixmap)
1142     {
1143       /* allocate */
1144       entry->backing_pixmap = gdk_pixmap_new (entry->text_area,
1145                                               width, height,
1146                                               -1);
1147     }
1148   else
1149     {
1150       /* reallocate if sizes don't match */
1151       gdk_window_get_size (entry->backing_pixmap,
1152                            &pixmap_width, &pixmap_height);
1153       if ((pixmap_width != width) || (pixmap_height != height))
1154         {
1155           gdk_pixmap_unref (entry->backing_pixmap);
1156           entry->backing_pixmap = gdk_pixmap_new (entry->text_area,
1157                                                   width, height,
1158                                                   -1);
1159         }
1160     }
1161 }
1162
1163 static void
1164 gtk_entry_draw_text (GtkEntry *entry)
1165 {
1166   GtkWidget *widget;
1167   GtkEditable *editable;
1168   GtkStateType selected_state;
1169   gint start_char;
1170   gint start_pos;
1171   gint end_pos;
1172   gint end_char;
1173   gint start_xoffset;
1174   gint selection_start_char;
1175   gint selection_end_char;
1176   gint selection_start_pos;
1177   gint selection_end_pos;
1178   gint selection_start_xoffset;
1179   gint selection_end_xoffset;
1180   gint width, height;
1181   gint y;
1182   GdkDrawable *drawable;
1183   gint use_backing_pixmap;
1184   gchar *stars;
1185   gchar *toprint;
1186
1187   g_return_if_fail (entry != NULL);
1188   g_return_if_fail (GTK_IS_ENTRY (entry));
1189
1190   if (entry->timer)
1191     {
1192       gtk_timeout_remove (entry->timer);
1193       entry->timer = 0;
1194     }
1195
1196   if (GTK_WIDGET_DRAWABLE (entry))
1197     {
1198       widget = GTK_WIDGET (entry);
1199       editable = GTK_EDITABLE (entry);
1200
1201       if (!entry->text)
1202         {
1203           gdk_window_clear (entry->text_area);
1204           if (editable->editable)
1205             gtk_entry_draw_cursor (entry);
1206           return;
1207         }
1208
1209       gdk_window_get_size (entry->text_area, &width, &height);
1210
1211       /*
1212         If the widget has focus, draw on a backing pixmap to avoid flickering
1213         and copy it to the text_area.
1214         Otherwise draw to text_area directly for better speed.
1215       */
1216       use_backing_pixmap = GTK_WIDGET_HAS_FOCUS (widget) && (entry->text != NULL);
1217       if (use_backing_pixmap)
1218         {
1219           gtk_entry_make_backing_pixmap (entry, width, height);
1220           drawable = entry->backing_pixmap;
1221           gdk_draw_rectangle (drawable,
1222                               widget->style->base_gc[GTK_WIDGET_STATE(widget)],
1223                               TRUE,
1224                               0, 0,
1225                               width,
1226                               height);
1227         }
1228       else
1229         {
1230           drawable = entry->text_area;
1231           gdk_window_clear (entry->text_area);
1232         }
1233
1234       y = (height - (widget->style->font->ascent + widget->style->font->descent)) / 2;
1235       y += widget->style->font->ascent;
1236
1237       start_char = gtk_entry_find_position (entry, entry->scroll_offset);
1238       start_pos = entry->char_pos[start_char];
1239       start_xoffset = entry->char_offset[start_char] - entry->scroll_offset;
1240
1241       end_char = gtk_entry_find_position (entry, entry->scroll_offset + width);
1242       end_pos = entry->char_pos[end_char];
1243       if (end_pos < entry->text_length)
1244         end_pos += 1;
1245
1246       selected_state = GTK_STATE_SELECTED;
1247       if (!editable->has_selection)
1248         selected_state = GTK_STATE_ACTIVE;
1249
1250       selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
1251       selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
1252
1253       selection_start_pos = CLAMP (selection_start_pos, start_pos, end_pos);
1254       selection_end_pos = CLAMP (selection_end_pos, start_pos, end_pos);
1255
1256       selection_start_char = gtk_entry_find_char(entry,selection_start_pos);
1257       selection_end_char = gtk_entry_find_char(entry,selection_end_pos);
1258
1259       selection_start_xoffset =
1260         entry->char_offset[selection_start_char] - entry->scroll_offset;
1261       selection_end_xoffset =
1262         entry->char_offset[selection_end_char] -entry->scroll_offset;
1263
1264       /* if entry->visible, print a bunch of stars.  If not, print the standard text. */
1265       if (entry->visible)
1266         {
1267           toprint = entry->text + start_pos;
1268         }
1269       else
1270         {
1271           gint i;
1272
1273           stars = g_malloc (end_char - start_char);
1274           for (i = 0; i < end_char - start_char; i++)
1275             stars[i] = '*';
1276           toprint = stars;
1277
1278           /* Since '*' is always one byte, work in bytes */
1279           start_pos = start_char;
1280           selection_start_pos = selection_start_char;
1281           selection_end_pos = selection_end_char;
1282           end_pos = end_char;
1283         }
1284
1285       if (selection_start_pos > start_pos)
1286         gdk_draw_text (drawable, widget->style->font,
1287                        widget->style->fg_gc[GTK_STATE_NORMAL],
1288                        start_xoffset, y,
1289                        toprint,
1290                        selection_start_pos - start_pos);
1291
1292       if ((selection_end_pos >= start_pos) &&
1293           (selection_start_pos < end_pos) &&
1294           (selection_start_pos != selection_end_pos))
1295         {
1296           gdk_draw_rectangle (drawable,
1297                               widget->style->bg_gc[selected_state],
1298                               TRUE,
1299                               selection_start_xoffset,
1300                               0,
1301                               selection_end_xoffset - selection_start_xoffset,
1302                               -1);
1303
1304           gdk_draw_text (drawable, widget->style->font,
1305                          widget->style->fg_gc[selected_state],
1306                          selection_start_xoffset, y,
1307                          toprint + selection_start_pos - start_pos,
1308                          selection_end_pos - selection_start_pos);
1309         }
1310
1311       if (selection_end_pos < end_pos)
1312         gdk_draw_text (drawable, widget->style->font,
1313                        widget->style->fg_gc[GTK_STATE_NORMAL],
1314                        selection_end_xoffset, y,
1315                        toprint + selection_end_pos - start_pos,
1316                        end_pos - selection_end_pos);
1317
1318       /* free the space allocated for the stars if it's neccessary. */
1319       if (!entry->visible)
1320         g_free (toprint);
1321
1322       if (editable->editable)
1323         gtk_entry_draw_cursor_on_drawable (entry, drawable);
1324
1325       if (use_backing_pixmap)
1326         gdk_draw_pixmap(entry->text_area,
1327                         widget->style->fg_gc[GTK_STATE_NORMAL],
1328                         entry->backing_pixmap,
1329                         0, 0, 0, 0, width, height);
1330     }
1331 }
1332
1333 static void
1334 gtk_entry_draw_cursor (GtkEntry *entry)
1335 {
1336   g_return_if_fail (entry != NULL);
1337   g_return_if_fail (GTK_IS_ENTRY (entry));
1338
1339   gtk_entry_draw_cursor_on_drawable (entry, entry->text_area);
1340 }
1341
1342 static void
1343 gtk_entry_draw_cursor_on_drawable (GtkEntry *entry, GdkDrawable *drawable)
1344 {
1345   GtkWidget *widget;
1346   GtkEditable *editable;
1347   GdkGC *gc;
1348   gint xoffset;
1349   gint text_area_height;
1350
1351   g_return_if_fail (entry != NULL);
1352   g_return_if_fail (GTK_IS_ENTRY (entry));
1353
1354   if (GTK_WIDGET_DRAWABLE (entry))
1355     {
1356       widget = GTK_WIDGET (entry);
1357       editable = GTK_EDITABLE (entry);
1358
1359       xoffset = entry->char_offset[gtk_entry_find_char (entry, editable->current_pos)];
1360       xoffset -= entry->scroll_offset;
1361
1362       if (GTK_WIDGET_HAS_FOCUS (widget) &&
1363           (editable->selection_start_pos == editable->selection_end_pos))
1364         gc = widget->style->fg_gc[GTK_STATE_NORMAL];
1365       else
1366         gc = widget->style->base_gc[GTK_WIDGET_STATE(widget)];
1367
1368       gdk_window_get_size (entry->text_area, NULL, &text_area_height);
1369       gdk_draw_line (drawable, gc, xoffset, 0, xoffset, text_area_height);
1370 #ifdef USE_XIM
1371       if (gdk_im_ready() && editable->ic &&
1372           gdk_ic_get_style (editable->ic) & GdkIMPreeditPosition)
1373         {
1374           GdkPoint spot;
1375
1376           spot.x = xoffset;
1377           spot.y = (text_area_height + (widget->style->font->ascent - widget->style->font->descent) + 1) / 2;
1378           gdk_ic_set_attr (editable->ic, "preeditAttributes", "spotLocation", &spot, NULL);
1379         }
1380 #endif
1381     }
1382 }
1383
1384 static void
1385 gtk_entry_queue_draw (GtkEntry *entry)
1386 {
1387   g_return_if_fail (entry != NULL);
1388   g_return_if_fail (GTK_IS_ENTRY (entry));
1389
1390   if (!entry->timer)
1391     entry->timer = gtk_timeout_add (DRAW_TIMEOUT, gtk_entry_timer, entry);
1392 }
1393
1394 static gint
1395 gtk_entry_timer (gpointer data)
1396 {
1397   GtkEntry *entry;
1398
1399   g_return_val_if_fail (data != NULL, FALSE);
1400
1401   entry = GTK_ENTRY (data);
1402   entry->timer = 0;
1403   gtk_entry_draw_text (entry);
1404
1405   return FALSE;
1406 }
1407
1408 static gint
1409 gtk_entry_find_position (GtkEntry *entry,
1410                          gint      x)
1411 {
1412   gint start = 0;
1413   gint end = entry->nchars;
1414   gint half;
1415
1416   if (x <= 0)
1417     return 0;
1418   if (x >= entry->char_offset[end])
1419     return end;
1420
1421   /* invariant - char_offset[start] <= x < char_offset[end] */
1422
1423   while (start != end)
1424     {
1425       half = (start+end)/2;
1426       if (half == start)
1427         return half;
1428       else if (entry->char_offset[half] <= x)
1429         start = half;
1430       else
1431         end = half;
1432     }
1433
1434   return start;
1435 }
1436
1437 static gint
1438 gtk_entry_position (GtkEntry *entry,
1439                     gint      x)
1440 {
1441   return entry->char_pos[gtk_entry_find_position(entry, x)];
1442 }
1443
1444 void
1445 gtk_entry_adjust_scroll (GtkEntry *entry)
1446 {
1447   gint xoffset, max_offset;
1448   gint text_area_width;
1449
1450   g_return_if_fail (entry != NULL);
1451   g_return_if_fail (GTK_IS_ENTRY (entry));
1452
1453   if (!entry->text_area)
1454     return;
1455
1456   gdk_window_get_size (entry->text_area, &text_area_width, NULL);
1457
1458   /* Display as much text as we can */
1459   max_offset = MAX(0, entry->char_offset[entry->nchars] - text_area_width);
1460
1461   if (entry->scroll_offset > max_offset)
1462     entry->scroll_offset = max_offset;
1463
1464   /* And make sure cursor is on screen */
1465   xoffset = entry->char_offset[gtk_entry_find_char (entry, GTK_EDITABLE(entry)->current_pos)];
1466   xoffset -= entry->scroll_offset;
1467
1468   if (xoffset < 0)
1469     entry->scroll_offset += xoffset;
1470
1471   else if (xoffset > text_area_width)
1472     entry->scroll_offset += xoffset - text_area_width + 1;
1473 }
1474
1475 static void
1476 gtk_entry_grow_text (GtkEntry *entry)
1477 {
1478   gint previous_size;
1479   gint i;
1480
1481   g_return_if_fail (entry != NULL);
1482   g_return_if_fail (GTK_IS_ENTRY (entry));
1483
1484   previous_size = entry->text_size;
1485   if (!entry->text_size)
1486     entry->text_size = 128;
1487   else
1488     entry->text_size *= 2;
1489   entry->text = g_realloc (entry->text, entry->text_size);
1490   entry->char_pos = g_realloc (entry->char_pos,
1491                                entry->text_size * sizeof(guint16));
1492   entry->char_offset = g_realloc (entry->char_offset,
1493                                   entry->text_size * sizeof(guint));
1494
1495   if (entry->text_length == 0)  /* initial allocation */
1496     {
1497       entry->char_pos[0] = 0;
1498       entry->char_offset[0] = 0;
1499     }
1500
1501   for (i = previous_size; i < entry->text_size; i++)
1502     entry->text[i] = '\0';
1503 }
1504
1505 static void
1506 gtk_entry_insert_text (GtkEditable *editable,
1507                        const gchar *new_text,
1508                        gint         new_text_length,
1509                        gint        *position)
1510 {
1511   gchar *text;
1512   gint start_char;
1513   gint end_char;
1514   gint start_pos;
1515   gint last_char;
1516   gint end_pos;
1517   gint last_pos;
1518   gint max_length;
1519   gint i;
1520
1521   gint insertion_chars;
1522   guint16 *insertion_pos = NULL; /* Quiet the compiler */
1523
1524   GtkEntry *entry;
1525
1526   g_return_if_fail (editable != NULL);
1527   g_return_if_fail (GTK_IS_ENTRY (editable));
1528
1529   entry = GTK_ENTRY (editable);
1530
1531   if (new_text_length < 0)
1532     new_text_length = strlen (new_text);
1533
1534   /* The algorithms here will work as long as, the text size (a
1535    * multiple of 2), fits into a guint16 but we specify a shorter
1536    * maximum length so that if the user pastes a very long text, there
1537    * is not a long hang from the slow X_LOCALE functions.  */
1538
1539   if (entry->text_max_length == 0)
1540     max_length = 2047;
1541   else
1542     max_length = MIN (2047, entry->text_max_length);
1543
1544   /* Make sure we do not exceed the maximum size of the entry. */
1545   if (new_text_length + entry->text_length > max_length)
1546     new_text_length = max_length - entry->text_length;
1547
1548   /* Don't insert anything, if there was nothing to insert. */
1549   if (new_text_length <= 0)
1550     return;
1551
1552   /* Find the length of the inserted text in characters, chop off
1553      partial/invalid characters */
1554   if (gtk_use_mb)
1555     {
1556       gint len = 0;
1557
1558       insertion_pos = g_new (guint16, new_text_length+1);
1559       insertion_chars = 0;
1560
1561       for (i=0; i<new_text_length; i+=len)
1562         {
1563           len = mblen (&new_text[i], MIN(MB_CUR_MAX,new_text_length-i));
1564           if (len < 0)
1565             break;
1566           insertion_pos[insertion_chars] =  i;
1567           insertion_chars++;
1568         }
1569       insertion_pos[insertion_chars] =  i;
1570
1571       new_text_length = i;
1572     }
1573   else
1574     insertion_chars = new_text_length;
1575
1576   /* Make sure we are inserting at integral character position */
1577   start_char = gtk_entry_find_char (entry, *position);
1578   start_pos = entry->char_pos[start_char];
1579
1580   end_pos = start_pos + new_text_length;
1581   last_pos = new_text_length + entry->text_length;
1582
1583   if (editable->selection_start_pos >= *position)
1584     editable->selection_start_pos += new_text_length;
1585   if (editable->selection_end_pos >= *position)
1586     editable->selection_end_pos += new_text_length;
1587
1588   while (last_pos >= entry->text_size)
1589     gtk_entry_grow_text (entry);
1590
1591   text = entry->text;
1592   for (i = last_pos - 1; i >= end_pos; i--)
1593     text[i] = text[i- (end_pos - start_pos)];
1594   for (i = start_pos; i < end_pos; i++)
1595     text[i] = new_text[i - start_pos];
1596
1597   if (gtk_use_mb)
1598     {
1599       /* Fix up the character positions */
1600
1601       end_char = start_char + insertion_chars;
1602       last_char = entry->nchars + insertion_chars;
1603
1604       for (i = last_char; i >= end_char; i--)
1605         entry->char_pos[i]
1606           = entry->char_pos[i - insertion_chars] + new_text_length;
1607
1608       for (i = 1; i < insertion_chars ; i++)
1609         entry->char_pos[start_char+i] =
1610           entry->char_pos[start_char] + insertion_pos[i];
1611
1612       g_free (insertion_pos);
1613     }
1614   else
1615     {
1616       end_char = end_pos;
1617       last_char = last_pos;
1618
1619       for (i = start_char ; i <= last_char ; i++)
1620         entry->char_pos[i] = i;
1621     }
1622
1623   /* Fix up the the character offsets */
1624
1625   if (GTK_WIDGET_REALIZED (entry))
1626     {
1627       gint offset = 0;
1628
1629       for (i = last_char; i >= end_char; i--)
1630         entry->char_offset[i]
1631           = entry->char_offset[i - insertion_chars];
1632
1633       for (i=start_char; i<end_char; i++)
1634         {
1635           entry->char_offset[i] = entry->char_offset[start_char] + offset;
1636           if (entry->visible)
1637             {
1638               offset += gdk_text_width (GTK_WIDGET (entry)->style->font,
1639                                         entry->text + entry->char_pos[i],
1640                                         entry->char_pos[i+1] - entry->char_pos[i]);
1641             }
1642           else
1643             {
1644               offset += gdk_text_width (GTK_WIDGET (entry)->style->font, "*", 1);
1645             }
1646         }
1647       for (i = end_char ; i <= last_char ; i++)
1648         entry->char_offset[i] += offset;
1649     }
1650
1651   entry->text_length += new_text_length;
1652   entry->nchars += insertion_chars;
1653   *position = end_pos;
1654
1655   gtk_entry_queue_draw (entry);
1656 }
1657
1658 /* Recompute the x offsets of all characters in the buffer */
1659 static void
1660 gtk_entry_recompute_offsets (GtkEntry *entry)
1661 {
1662   gint i;
1663   gint offset = 0;
1664
1665   for (i=0; i<entry->nchars; i++)
1666     {
1667       entry->char_offset[i] = offset;
1668       if (entry->visible)
1669         {
1670           offset += gdk_text_width (GTK_WIDGET (entry)->style->font,
1671                                     entry->text + entry->char_pos[i],
1672                                     entry->char_pos[i+1] - entry->char_pos[i]);
1673         }
1674       else
1675         {
1676           offset += gdk_text_width (GTK_WIDGET (entry)->style->font, "*", 1);
1677         }
1678     }
1679
1680   entry->char_offset[i] = offset;
1681 }
1682
1683 /* Given a position in the entry, find the character index of the
1684  * last character with position <= the given position
1685  */
1686 static gint
1687 gtk_entry_find_char (GtkEntry *entry, gint position)
1688 {
1689   gint start = 0;
1690   gint end = entry->nchars;
1691   gint half;
1692
1693   if (position >= entry->char_pos[end])
1694     return end;
1695   if (position < 0)
1696     return 0;
1697
1698   /* invariant - char_pos[start] <= position < char_pos[end] */
1699
1700   while (start != end)
1701     {
1702       half = (start+end)/2;
1703       if (half == start)
1704         return half;
1705       else if (entry->char_pos[half] <= position)
1706         start = half;
1707       else
1708         end = half;
1709     }
1710
1711   return start;
1712 }
1713
1714 static void
1715 gtk_entry_delete_text (GtkEditable *editable,
1716                        gint         start_pos,
1717                        gint         end_pos)
1718 {
1719   gchar *text;
1720   gint deletion_length;
1721   gint start_char;
1722   gint end_char;
1723   gint i;
1724
1725   GtkEntry *entry;
1726
1727   g_return_if_fail (editable != NULL);
1728   g_return_if_fail (GTK_IS_ENTRY (editable));
1729
1730   entry = GTK_ENTRY (editable);
1731
1732   if (end_pos < 0)
1733     end_pos = entry->text_length;
1734
1735   start_char = gtk_entry_find_char (entry, start_pos);
1736   end_char = gtk_entry_find_char (entry, end_pos);
1737   start_pos = entry->char_pos[start_char];
1738   end_pos = entry->char_pos[end_char];
1739
1740   if (editable->selection_start_pos > start_pos)
1741     editable->selection_start_pos -= MIN(end_pos, editable->selection_start_pos) - start_pos;
1742   if (editable->selection_end_pos > start_pos)
1743     editable->selection_end_pos -= MIN(end_pos, editable->selection_end_pos) - start_pos;
1744
1745   if ((start_pos < end_pos) &&
1746       (start_pos >= 0) &&
1747       (end_pos <= entry->text_length))
1748     {
1749       text = entry->text;
1750       deletion_length = end_pos - start_pos;
1751
1752       /* Fix up the character offsets */
1753       if (GTK_WIDGET_REALIZED (entry))
1754         {
1755           gint deletion_width =
1756             entry->char_offset[end_char] - entry->char_offset[start_char];
1757
1758           for (i = 0 ; i <= entry->nchars - end_char; i++)
1759             entry->char_offset[start_char+i] = entry->char_offset[end_char+i] - deletion_width;
1760         }
1761
1762       for (i = end_pos; i < entry->text_length; i++)
1763         text[i - deletion_length] = text[i];
1764
1765       for (i = entry->text_length - deletion_length; i < entry->text_length; i++)
1766         text[i] = '\0';
1767
1768       for (i = 0 ; i <= entry->nchars - end_char; i++)
1769         entry->char_pos[start_char+i] = entry->char_pos[end_char+i] - deletion_length;
1770
1771       entry->nchars -= end_char - start_char;
1772
1773       entry->text_length -= deletion_length;
1774       editable->current_pos = start_pos;
1775     }
1776
1777   gtk_entry_queue_draw (entry);
1778 }
1779
1780 static void
1781 gtk_entry_update_text (GtkEditable *editable,
1782                        gint         start_pos,
1783                        gint         end_pos)
1784 {
1785   gtk_entry_queue_draw (GTK_ENTRY(editable));
1786 }
1787
1788 static gchar *
1789 gtk_entry_get_chars      (GtkEditable   *editable,
1790                           gint           start_pos,
1791                           gint           end_pos)
1792 {
1793   gchar *retval;
1794   GtkEntry *entry;
1795   gchar c;
1796
1797   g_return_val_if_fail (editable != NULL, NULL);
1798   g_return_val_if_fail (GTK_IS_ENTRY (editable), NULL);
1799
1800   entry = GTK_ENTRY (editable);
1801
1802   if (end_pos < 0)
1803     end_pos = entry->text_length;
1804
1805   start_pos = MIN(entry->text_length, start_pos);
1806   end_pos = MIN(entry->text_length, end_pos);
1807
1808   if (start_pos <= end_pos)
1809     {
1810       c = entry->text[end_pos];
1811       entry->text[end_pos] = '\0';
1812
1813       retval = g_strdup (&entry->text[start_pos]);
1814
1815       entry->text[end_pos] = c;
1816
1817       return retval;
1818     }
1819   else
1820     return NULL;
1821 }
1822
1823 static void
1824 gtk_entry_move_cursor (GtkEditable *editable,
1825                        gint         x,
1826                        gint         y)
1827 {
1828   gint len;
1829
1830   GtkEntry *entry;
1831   entry = GTK_ENTRY (editable);
1832
1833   /* Horizontal motion */
1834   if (x > 0)
1835     {
1836       while (x-- != 0)
1837         {
1838           if (gtk_use_mb)
1839             {
1840               if (editable->current_pos < entry->text_length)
1841                 {
1842                   len = mblen (entry->text+editable->current_pos, MB_CUR_MAX);
1843                   editable->current_pos += (len>0)? len:1;
1844                 }
1845           if (editable->current_pos > entry->text_length)
1846             editable->current_pos = entry->text_length;
1847             }
1848           else
1849             {
1850               if (editable->current_pos < entry->text_length)
1851                 editable->current_pos ++;
1852             }
1853         }
1854     }
1855   else if (x < 0)
1856     {
1857       while (x++ != 0)
1858         {
1859           if (0 < editable->current_pos)
1860             {
1861               if (gtk_use_mb)
1862                 editable->current_pos =
1863                   entry->char_pos[gtk_entry_find_char (entry, editable->current_pos - 1)];
1864               else
1865                 editable->current_pos--;
1866             }
1867         }
1868     }
1869
1870   /* Ignore vertical motion */
1871 }
1872
1873 static void
1874 gtk_move_forward_character (GtkEntry *entry)
1875 {
1876   gtk_entry_move_cursor (GTK_EDITABLE (entry), 1, 0);
1877 }
1878
1879 static void
1880 gtk_move_backward_character (GtkEntry *entry)
1881 {
1882   gtk_entry_move_cursor (GTK_EDITABLE (entry), -1, 0);
1883 }
1884
1885 static void
1886 gtk_entry_move_word (GtkEditable *editable,
1887                      gint         n)
1888 {
1889   if (n > 0)
1890     {
1891       while (n-- != 0)
1892         gtk_move_forward_word (GTK_ENTRY (editable));
1893     }
1894   else if (n < 0)
1895     {
1896       while (n++ != 0)
1897         gtk_move_backward_word (GTK_ENTRY (editable));
1898     }
1899 }
1900
1901 static void
1902 gtk_move_forward_word (GtkEntry *entry)
1903 {
1904   GtkEditable *editable;
1905   gchar *text;
1906   gint i;
1907   wchar_t c;
1908   gint len;
1909
1910   editable = GTK_EDITABLE (entry);
1911
1912   if (entry->text && (editable->current_pos < entry->text_length))
1913     {
1914       text = entry->text;
1915       i = editable->current_pos;
1916
1917       if (gtk_use_mb)
1918         {
1919           len = mbtowc (&c, text+i, MB_CUR_MAX);
1920           if (!iswalnum(c))
1921             for (; i < entry->text_length; i+=len)
1922               {
1923                 len = mbtowc (&c, text+i, MB_CUR_MAX);
1924                 if (len < 1 || iswalnum(c))
1925                   break;
1926               }
1927
1928           for (; i < entry->text_length; i+=len)
1929             {
1930               len = mbtowc (&c, text+i, MB_CUR_MAX);
1931               if (len < 1 || !iswalnum(c))
1932                 break;
1933             }
1934
1935           editable->current_pos = i;
1936           if (editable->current_pos > entry->text_length)
1937             editable->current_pos = entry->text_length;
1938         }
1939       else
1940         {
1941           if (!isalnum (text[i]))
1942             for (; i < entry->text_length; i++)
1943               {
1944                 if (isalnum(text[i]))
1945                   break;
1946               }
1947
1948           for (; i < entry->text_length; i++)
1949             {
1950               if (!isalnum(text[i]))
1951                 break;
1952             }
1953
1954           editable->current_pos = i;
1955         }
1956     }
1957 }
1958
1959 static void
1960 gtk_move_backward_word (GtkEntry *entry)
1961 {
1962   GtkEditable *editable;
1963   gchar *text;
1964   gint i;
1965   wchar_t c;
1966
1967   editable = GTK_EDITABLE (entry);
1968
1969   if (entry->text && editable->current_pos > 0)
1970     {
1971       text = entry->text;
1972
1973       if (gtk_use_mb)
1974         {
1975           i = gtk_entry_find_char (entry, editable->current_pos - 1);
1976
1977           mbtowc (&c, text+entry->char_pos[i], MB_CUR_MAX);
1978           if (!iswalnum(c))
1979             for (; i >= 0; i--)
1980               {
1981                 mbtowc (&c, text+entry->char_pos[i], MB_CUR_MAX);
1982                 if (iswalnum(c))
1983                   break;
1984               }
1985
1986           for (; i >= 0; i--)
1987             {
1988               mbtowc (&c, text+entry->char_pos[i], MB_CUR_MAX);
1989               if (!iswalnum(c))
1990                 {
1991                   i++;
1992                   break;
1993                 }
1994             }
1995
1996           if (i < 0)
1997             i = 0;
1998
1999           editable->current_pos = entry->char_pos[i];
2000         }
2001       else
2002         {
2003           i = editable->current_pos - 1;
2004
2005           if (!isalnum(text[i]))
2006             for (; i >= 0; i--)
2007               {
2008                 if (isalnum(text[i]))
2009                   break;
2010               }
2011
2012           for (; i >= 0; i--)
2013             {
2014               if (!isalnum(text[i]))
2015                 {
2016                   i++;
2017                   break;
2018                 }
2019             }
2020
2021           if (i < 0)
2022             i = 0;
2023
2024           editable->current_pos = i;
2025         }
2026
2027     }
2028 }
2029
2030 static void
2031 gtk_entry_move_to_column (GtkEditable *editable, gint column)
2032 {
2033   GtkEntry *entry;
2034
2035   entry = GTK_ENTRY (editable);
2036
2037   if (column < 0 || column > entry->nchars)
2038     editable->current_pos = entry->text_length;
2039   else
2040     editable->current_pos = entry->char_pos[column];
2041 }
2042
2043 static void
2044 gtk_move_beginning_of_line (GtkEntry *entry)
2045 {
2046   gtk_entry_move_to_column (GTK_EDITABLE (entry), 0);
2047 }
2048
2049 static void
2050 gtk_move_end_of_line (GtkEntry *entry)
2051 {
2052   gtk_entry_move_to_column (GTK_EDITABLE (entry), -1);
2053 }
2054
2055 static void
2056 gtk_entry_kill_char (GtkEditable *editable,
2057                      gint         direction)
2058 {
2059   if (editable->selection_start_pos != editable->selection_end_pos)
2060     gtk_editable_delete_selection (editable);
2061   else
2062     {
2063       gint old_pos = editable->current_pos;
2064       if (direction >= 0)
2065         {
2066           gtk_entry_move_cursor (editable, 1, 0);
2067           gtk_editable_delete_text (editable, old_pos, editable->current_pos);
2068         }
2069       else
2070         {
2071           gtk_entry_move_cursor (editable, -1, 0);
2072           gtk_editable_delete_text (editable, editable->current_pos, old_pos);
2073         }
2074     }
2075 }
2076
2077 static void
2078 gtk_delete_forward_character (GtkEntry *entry)
2079 {
2080   gtk_entry_kill_char (GTK_EDITABLE (entry), 1);
2081 }
2082
2083 static void
2084 gtk_delete_backward_character (GtkEntry *entry)
2085 {
2086   gtk_entry_kill_char (GTK_EDITABLE (entry), -1);
2087 }
2088
2089 static void
2090 gtk_entry_kill_word (GtkEditable *editable,
2091                      gint         direction)
2092 {
2093   if (editable->selection_start_pos != editable->selection_end_pos)
2094     gtk_editable_delete_selection (editable);
2095   else
2096     {
2097       gint old_pos = editable->current_pos;
2098       if (direction >= 0)
2099         {
2100           gtk_entry_move_word (editable, 1);
2101           gtk_editable_delete_text (editable, old_pos, editable->current_pos);
2102         }
2103       else
2104         {
2105           gtk_entry_move_word (editable, -1);
2106           gtk_editable_delete_text (editable, editable->current_pos, old_pos);
2107         }
2108     }
2109 }
2110
2111 static void
2112 gtk_delete_forward_word (GtkEntry *entry)
2113 {
2114   gtk_entry_kill_word (GTK_EDITABLE (entry), 1);
2115 }
2116
2117 static void
2118 gtk_delete_backward_word (GtkEntry *entry)
2119 {
2120   gtk_entry_kill_word (GTK_EDITABLE (entry), -1);
2121 }
2122
2123 static void
2124 gtk_entry_kill_line (GtkEditable *editable,
2125                      gint         direction)
2126 {
2127   gint old_pos = editable->current_pos;
2128   if (direction >= 0)
2129     {
2130       gtk_entry_move_to_column (editable, -1);
2131       gtk_editable_delete_text (editable, old_pos, editable->current_pos);
2132     }
2133   else
2134     {
2135       gtk_entry_move_to_column (editable, 0);
2136       gtk_editable_delete_text (editable, editable->current_pos, old_pos);
2137     }
2138 }
2139
2140 static void
2141 gtk_delete_line (GtkEntry *entry)
2142 {
2143   gtk_entry_move_to_column (GTK_EDITABLE (entry), 0);
2144   gtk_entry_kill_line (GTK_EDITABLE (entry), 1);
2145 }
2146
2147 static void
2148 gtk_delete_to_line_end (GtkEntry *entry)
2149 {
2150   gtk_editable_delete_text (GTK_EDITABLE(entry), GTK_EDITABLE(entry)->current_pos, entry->text_length);
2151 }
2152
2153 static void
2154 gtk_select_word (GtkEntry *entry,
2155                  guint32   time)
2156 {
2157   GtkEditable *editable;
2158   gint start_pos;
2159   gint end_pos;
2160
2161   editable = GTK_EDITABLE (entry);
2162
2163   gtk_move_backward_word (entry);
2164   start_pos = editable->current_pos;
2165
2166   gtk_move_forward_word (entry);
2167   end_pos = editable->current_pos;
2168
2169   editable->has_selection = TRUE;
2170   gtk_entry_set_selection (editable, start_pos, end_pos);
2171   gtk_editable_claim_selection (editable, start_pos != end_pos, time);
2172 }
2173
2174 static void
2175 gtk_select_line (GtkEntry *entry,
2176                  guint32   time)
2177 {
2178   GtkEditable *editable;
2179
2180   editable = GTK_EDITABLE (entry);
2181
2182   editable->has_selection = TRUE;
2183   gtk_entry_set_selection (editable, 0, entry->text_length);
2184   gtk_editable_claim_selection (editable, entry->text_length != 0, time);
2185
2186   editable->current_pos = editable->selection_end_pos;
2187 }
2188
2189 static void
2190 gtk_entry_set_selection (GtkEditable       *editable,
2191                          gint               start,
2192                          gint               end)
2193 {
2194   g_return_if_fail (editable != NULL);
2195   g_return_if_fail (GTK_IS_ENTRY (editable));
2196
2197   if (end < 0)
2198     end = GTK_ENTRY (editable)->text_length;
2199
2200   editable->selection_start_pos = start;
2201   editable->selection_end_pos = end;
2202
2203   gtk_entry_queue_draw (GTK_ENTRY (editable));
2204 }
2205
2206 void
2207 gtk_entry_select_region  (GtkEntry       *entry,
2208                           gint            start,
2209                           gint            end)
2210 {
2211   gtk_editable_select_region (GTK_EDITABLE (entry), start, end);
2212 }
2213
2214 void
2215 gtk_entry_set_max_length (GtkEntry     *entry,
2216                           guint16       max)
2217 {
2218   g_return_if_fail (entry != NULL);
2219   g_return_if_fail (GTK_IS_ENTRY (entry));
2220
2221   if (max && entry->text_length > max)
2222         gtk_editable_delete_text(GTK_EDITABLE(entry), max, -1);
2223   entry->text_max_length = max;
2224 }
2225
2226 static void
2227 gtk_entry_style_set     (GtkWidget      *widget,
2228                          GtkStyle       *previous_style)
2229 {
2230   GtkEntry *entry;
2231   gint scroll_char;
2232
2233   g_return_if_fail (widget != NULL);
2234   g_return_if_fail (GTK_IS_ENTRY (widget));
2235
2236   if (previous_style && GTK_WIDGET_REALIZED (widget))
2237     {
2238       entry = GTK_ENTRY (widget);
2239
2240       scroll_char = gtk_entry_find_position (entry, entry->scroll_offset);
2241       gtk_entry_recompute_offsets (GTK_ENTRY (widget));
2242       entry->scroll_offset = entry->char_offset[scroll_char];
2243       gtk_entry_adjust_scroll (entry);
2244
2245       gdk_window_set_background (widget->window, &widget->style->base[GTK_STATE_NORMAL]);
2246       gdk_window_set_background (entry->text_area, &widget->style->base[GTK_STATE_NORMAL]);
2247     }
2248
2249   if (GTK_WIDGET_DRAWABLE (widget))
2250     gdk_window_clear (widget->window);
2251 }