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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include <ctype.h>
  28 #include <string.h>
  29 #include "gdk/gdkkeysyms.h"
  30 #include "gdk/gdki18n.h"
  31 #include "gtkclipboard.h"
  32 #include "gtkoldeditable.h"
  33 #include "gtkmain.h"
  34 #include "gtkselection.h"
  35 #include "gtksignal.h"
  36
  37 #define MIN_EDITABLE_WIDTH  150
  38 #define DRAW_TIMEOUT     20
  39 #define INNER_BORDER     2
  40
  41 enum {
  42   CHANGED,
  43   INSERT_TEXT,
  44   DELETE_TEXT,
  45   /* Binding actions */
  46   ACTIVATE,
  47   SET_EDITABLE,
  48   MOVE_CURSOR,
  49   MOVE_WORD,
  50   MOVE_PAGE,
  51   MOVE_TO_ROW,
  52   MOVE_TO_COLUMN,
  53   KILL_CHAR,
  54   KILL_WORD,
  55   KILL_LINE,
  56   CUT_CLIPBOARD,
  57   COPY_CLIPBOARD,
  58   PASTE_CLIPBOARD,
  59   LAST_SIGNAL
  60 };
  61
  62 enum {
  63   ARG_0,
  64   ARG_TEXT_POSITION,
  65   ARG_EDITABLE
  66 };
  67
  68 /* values for selection info */
  69
  70 enum {
  71   TARGET_STRING,
  72   TARGET_TEXT,
  73   TARGET_COMPOUND_TEXT
  74 };
  75
  76 static void  gtk_old_editable_class_init           (GtkOldEditableClass *klass);
  77 static void  gtk_old_editable_editable_init        (GtkEditableClass    *iface);
  78 static void  gtk_old_editable_init                 (GtkOldEditable      *editable);
  79 static void  gtk_old_editable_set_arg              (GtkObject           *object,
  80                                                     GtkArg              *arg,
  81                                                     guint                arg_id);
  82 static void  gtk_old_editable_get_arg              (GtkObject           *object,
  83                                                     GtkArg              *arg,
  84                                                     guint                arg_id);
  85 static void *gtk_old_editable_get_public_chars     (GtkOldEditable      *old_editable,
  86                                                     gint                 start,
  87                                                     gint                 end);
  88
  89 static gint gtk_old_editable_selection_clear    (GtkWidget         *widget,
  90                                                  GdkEventSelection *event);
  91 static void gtk_old_editable_selection_get      (GtkWidget         *widget,
  92                                                  GtkSelectionData  *selection_data,
  93                                                  guint              info,
  94                                                  guint              time);
  95 static void gtk_old_editable_selection_received (GtkWidget         *widget,
  96                                                  GtkSelectionData  *selection_data,
  97                                                  guint              time);
  98
  99 static void  gtk_old_editable_set_selection        (GtkOldEditable      *old_editable,
 100                                                     gint                 start,
 101                                                     gint                 end);
 102
 103 static void gtk_old_editable_real_set_editable    (GtkOldEditable *old_editable,
 104                                                    gboolean        is_editable);
 105 static void gtk_old_editable_real_cut_clipboard   (GtkOldEditable *old_editable);
 106 static void gtk_old_editable_real_copy_clipboard  (GtkOldEditable *old_editable);
 107 static void gtk_old_editable_real_paste_clipboard (GtkOldEditable *old_editable);
 108
 109 static void     gtk_old_editable_insert_text         (GtkEditable *editable,
 110                                                       const gchar *new_text,
 111                                                       gint         new_text_length,
 112                                                       gint        *position);
 113 static void     gtk_old_editable_delete_text         (GtkEditable *editable,
 114                                                       gint         start_pos,
 115                                                       gint         end_pos);
 116 static gchar *  gtk_old_editable_get_chars           (GtkEditable *editable,
 117                                                       gint         start,
 118                                                       gint         end);
 119 static void     gtk_old_editable_set_selection_bounds (GtkEditable *editable,
 120                                                        gint         start,
 121                                                        gint         end);
 122 static gboolean gtk_old_editable_get_selection_bounds (GtkEditable *editable,
 123                                                        gint        *start,
 124                                                        gint        *end);
 125 static void     gtk_old_editable_set_position        (GtkEditable *editable,
 126                                                       gint         position);
 127 static gint     gtk_old_editable_get_position        (GtkEditable *editable);
 128
 129 static GtkWidgetClass *parent_class = NULL;
 130 static guint editable_signals[LAST_SIGNAL] = { 0 };
 131
 132 GtkType
 133 gtk_old_editable_get_type (void)
 134 {
 135   static GtkType old_editable_type = 0;
 136
 137   if (!old_editable_type)
 138     {
 139       static const GtkTypeInfo old_editable_info =
 140       {
 141         "GtkOldEditable",
 142         sizeof (GtkOldEditable),
 143         sizeof (GtkOldEditableClass),
 144         (GtkClassInitFunc) gtk_old_editable_class_init,
 145         (GtkObjectInitFunc) gtk_old_editable_init,
 146         /* reserved_1 */ NULL,
 147         /* reserved_2 */ NULL,
 148         (GtkClassInitFunc) NULL,
 149       };
 150
 151       static const GInterfaceInfo editable_info =
 152       {
 153         (GInterfaceInitFunc) gtk_old_editable_editable_init,     /* interface_init */
 154         NULL,                                                    /* interface_finalize */
 155         NULL                                                     /* interface_data */
 156       };
 157
 158       old_editable_type = gtk_type_unique (GTK_TYPE_WIDGET, &old_editable_info);
 159       g_type_add_interface_static (old_editable_type,
 160                                    GTK_TYPE_EDITABLE,
 161                                    &editable_info);
 162     }
 163
 164   return old_editable_type;
 165 }
 166
 167 static void
 168 gtk_old_editable_class_init (GtkOldEditableClass *class)
 169 {
 170   GtkObjectClass *object_class;
 171   GtkWidgetClass *widget_class;
 172
 173   object_class = (GtkObjectClass*) class;
 174   widget_class = (GtkWidgetClass*) class;
 175
 176   parent_class = gtk_type_class (GTK_TYPE_WIDGET);
 177
 178   object_class->set_arg = gtk_old_editable_set_arg;
 179   object_class->get_arg = gtk_old_editable_get_arg;
 180
 181   widget_class->selection_clear_event = gtk_old_editable_selection_clear;
 182   widget_class->selection_received = gtk_old_editable_selection_received;
 183   widget_class->selection_get = gtk_old_editable_selection_get;
 184
 185   class->insert_text = NULL;
 186   class->delete_text = NULL;
 187
 188   class->activate = NULL;
 189   class->set_editable = gtk_old_editable_real_set_editable;
 190
 191   class->move_cursor = NULL;
 192   class->move_word = NULL;
 193   class->move_page = NULL;
 194   class->move_to_row = NULL;
 195   class->move_to_column = NULL;
 196
 197   class->kill_char = NULL;
 198   class->kill_word = NULL;
 199   class->kill_line = NULL;
 200
 201   class->cut_clipboard = gtk_old_editable_real_cut_clipboard;
 202   class->copy_clipboard = gtk_old_editable_real_copy_clipboard;
 203   class->paste_clipboard = gtk_old_editable_real_paste_clipboard;
 204
 205   class->update_text = NULL;
 206   class->get_chars = NULL;
 207   class->set_selection = NULL;
 208   class->set_position = NULL;
 209
 210   editable_signals[CHANGED] =
 211     gtk_signal_new ("changed",
 212                     GTK_RUN_LAST,
 213                     GTK_CLASS_TYPE (object_class),
 214                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, changed),
 215                     gtk_marshal_NONE__NONE,
 216                     GTK_TYPE_NONE, 0);
 217
 218   editable_signals[INSERT_TEXT] =
 219     gtk_signal_new ("insert_text",
 220                     GTK_RUN_LAST,
 221                     GTK_CLASS_TYPE (object_class),
 222                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, insert_text),
 223                     gtk_marshal_NONE__STRING_INT_POINTER,
 224                     GTK_TYPE_NONE,
 225                     3,
 226                     GTK_TYPE_STRING,
 227                     GTK_TYPE_INT,
 228                     GTK_TYPE_POINTER);
 229
 230   editable_signals[DELETE_TEXT] =
 231     gtk_signal_new ("delete_text",
 232                     GTK_RUN_LAST,
 233                     GTK_CLASS_TYPE (object_class),
 234                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, delete_text),
 235                     gtk_marshal_NONE__INT_INT,
 236                     GTK_TYPE_NONE,
 237                     2,
 238                     GTK_TYPE_INT,
 239                     GTK_TYPE_INT);
 240
 241   editable_signals[ACTIVATE] =
 242     gtk_signal_new ("activate",
 243                     GTK_RUN_LAST | GTK_RUN_ACTION,
 244                     GTK_CLASS_TYPE (object_class),
 245                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, activate),
 246                     gtk_marshal_NONE__NONE,
 247                     GTK_TYPE_NONE, 0);
 248   widget_class->activate_signal = editable_signals[ACTIVATE];
 249
 250   editable_signals[SET_EDITABLE] =
 251     gtk_signal_new ("set-editable",
 252                     GTK_RUN_LAST | GTK_RUN_ACTION,
 253                     GTK_CLASS_TYPE (object_class),
 254                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, set_editable),
 255                     gtk_marshal_NONE__BOOL,
 256                     GTK_TYPE_NONE, 1,
 257                     GTK_TYPE_BOOL);
 258
 259   editable_signals[MOVE_CURSOR] =
 260     gtk_signal_new ("move_cursor",
 261                     GTK_RUN_LAST | GTK_RUN_ACTION,
 262                     GTK_CLASS_TYPE (object_class),
 263                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, move_cursor),
 264                     gtk_marshal_NONE__INT_INT,
 265                     GTK_TYPE_NONE, 2,
 266                     GTK_TYPE_INT,
 267                     GTK_TYPE_INT);
 268
 269   editable_signals[MOVE_WORD] =
 270     gtk_signal_new ("move_word",
 271                     GTK_RUN_LAST | GTK_RUN_ACTION,
 272                     GTK_CLASS_TYPE (object_class),
 273                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, move_word),
 274                     gtk_marshal_NONE__INT,
 275                     GTK_TYPE_NONE, 1,
 276                     GTK_TYPE_INT);
 277
 278   editable_signals[MOVE_PAGE] =
 279     gtk_signal_new ("move_page",
 280                     GTK_RUN_LAST | GTK_RUN_ACTION,
 281                     GTK_CLASS_TYPE (object_class),
 282                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, move_page),
 283                     gtk_marshal_NONE__INT_INT,
 284                     GTK_TYPE_NONE, 2,
 285                     GTK_TYPE_INT,
 286                     GTK_TYPE_INT);
 287
 288   editable_signals[MOVE_TO_ROW] =
 289     gtk_signal_new ("move_to_row",
 290                     GTK_RUN_LAST | GTK_RUN_ACTION,
 291                     GTK_CLASS_TYPE (object_class),
 292                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, move_to_row),
 293                     gtk_marshal_NONE__INT,
 294                     GTK_TYPE_NONE, 1,
 295                     GTK_TYPE_INT);
 296
 297   editable_signals[MOVE_TO_COLUMN] =
 298     gtk_signal_new ("move_to_column",
 299                     GTK_RUN_LAST | GTK_RUN_ACTION,
 300                     GTK_CLASS_TYPE (object_class),
 301                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, move_to_column),
 302                     gtk_marshal_NONE__INT,
 303                     GTK_TYPE_NONE, 1,
 304                     GTK_TYPE_INT);
 305
 306   editable_signals[KILL_CHAR] =
 307     gtk_signal_new ("kill_char",
 308                     GTK_RUN_LAST | GTK_RUN_ACTION,
 309                     GTK_CLASS_TYPE (object_class),
 310                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, kill_char),
 311                     gtk_marshal_NONE__INT,
 312                     GTK_TYPE_NONE, 1,
 313                     GTK_TYPE_INT);
 314
 315   editable_signals[KILL_WORD] =
 316     gtk_signal_new ("kill_word",
 317                     GTK_RUN_LAST | GTK_RUN_ACTION,
 318                     GTK_CLASS_TYPE (object_class),
 319                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, kill_word),
 320                     gtk_marshal_NONE__INT,
 321                     GTK_TYPE_NONE, 1,
 322                     GTK_TYPE_INT);
 323
 324   editable_signals[KILL_LINE] =
 325     gtk_signal_new ("kill_line",
 326                     GTK_RUN_LAST | GTK_RUN_ACTION,
 327                     GTK_CLASS_TYPE (object_class),
 328                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, kill_line),
 329                     gtk_marshal_NONE__INT,
 330                     GTK_TYPE_NONE, 1,
 331                     GTK_TYPE_INT);
 332
 333   editable_signals[CUT_CLIPBOARD] =
 334     gtk_signal_new ("cut_clipboard",
 335                     GTK_RUN_LAST | GTK_RUN_ACTION,
 336                     GTK_CLASS_TYPE (object_class),
 337                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, cut_clipboard),
 338                     gtk_marshal_NONE__NONE,
 339                     GTK_TYPE_NONE, 0);
 340
 341   editable_signals[COPY_CLIPBOARD] =
 342     gtk_signal_new ("copy_clipboard",
 343                     GTK_RUN_LAST | GTK_RUN_ACTION,
 344                     GTK_CLASS_TYPE (object_class),
 345                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, copy_clipboard),
 346                     gtk_marshal_NONE__NONE,
 347                     GTK_TYPE_NONE, 0);
 348
 349   editable_signals[PASTE_CLIPBOARD] =
 350     gtk_signal_new ("paste_clipboard",
 351                     GTK_RUN_LAST | GTK_RUN_ACTION,
 352                     GTK_CLASS_TYPE (object_class),
 353                     GTK_SIGNAL_OFFSET (GtkOldEditableClass, paste_clipboard),
 354                     gtk_marshal_NONE__NONE,
 355                     GTK_TYPE_NONE, 0);
 356
 357   gtk_object_add_arg_type ("GtkOldEditable::text_position", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_TEXT_POSITION);
 358   gtk_object_add_arg_type ("GtkOldEditable::editable", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_EDITABLE);
 359 }
 360
 361 static void
 362 gtk_old_editable_editable_init (GtkEditableClass *iface)
 363 {
 364   iface->insert_text = gtk_old_editable_insert_text;
 365   iface->delete_text = gtk_old_editable_delete_text;
 366   iface->get_chars = gtk_old_editable_get_chars;
 367   iface->set_selection_bounds = gtk_old_editable_set_selection_bounds;
 368   iface->get_selection_bounds = gtk_old_editable_get_selection_bounds;
 369   iface->set_position = gtk_old_editable_set_position;
 370   iface->get_position = gtk_old_editable_get_position;
 371 }
 372
 373 static void
 374 gtk_old_editable_set_arg (GtkObject *object,
 375                           GtkArg    *arg,
 376                           guint      arg_id)
 377 {
 378   GtkEditable *editable = GTK_EDITABLE (object);
 379
 380   switch (arg_id)
 381     {
 382     case ARG_TEXT_POSITION:
 383       gtk_editable_set_position (editable, GTK_VALUE_INT (*arg));
 384       break;
 385     case ARG_EDITABLE:
 386       gtk_signal_emit (object, editable_signals[SET_EDITABLE],
 387                        GTK_VALUE_BOOL (*arg) != FALSE);
 388       break;
 389     default:
 390       break;
 391     }
 392 }
 393
 394 static void
 395 gtk_old_editable_get_arg (GtkObject *object,
 396                           GtkArg    *arg,
 397                           guint      arg_id)
 398 {
 399   GtkOldEditable *old_editable;
 400
 401   old_editable = GTK_OLD_EDITABLE (object);
 402
 403   switch (arg_id)
 404     {
 405     case ARG_TEXT_POSITION:
 406       GTK_VALUE_INT (*arg) = old_editable->current_pos;
 407       break;
 408     case ARG_EDITABLE:
 409       GTK_VALUE_BOOL (*arg) = old_editable->editable;
 410       break;
 411     default:
 412       arg->type = GTK_TYPE_INVALID;
 413       break;
 414     }
 415 }
 416
 417 static void
 418 gtk_old_editable_init (GtkOldEditable *old_editable)
 419 {
 420   static const GtkTargetEntry targets[] = {
 421     { "UTF8_STRING", 0, 0 },
 422     { "STRING", 0, 0 },
 423     { "TEXT",   0, 0 },
 424     { "COMPOUND_TEXT", 0, 0 }
 425   };
 426
 427   GTK_WIDGET_SET_FLAGS (old_editable, GTK_CAN_FOCUS);
 428
 429   old_editable->selection_start_pos = 0;
 430   old_editable->selection_end_pos = 0;
 431   old_editable->has_selection = FALSE;
 432   old_editable->editable = 1;
 433   old_editable->visible = 1;
 434   old_editable->clipboard_text = NULL;
 435
 436   gtk_selection_add_targets (GTK_WIDGET (old_editable), GDK_SELECTION_PRIMARY,
 437                              targets, G_N_ELEMENTS (targets));
 438 }
 439
 440 static void
 441 gtk_old_editable_insert_text (GtkEditable *editable,
 442                               const gchar *new_text,
 443                               gint         new_text_length,
 444                               gint        *position)
 445 {
 446   gchar buf[64];
 447   gchar *text;
 448
 449   gtk_widget_ref (GTK_WIDGET (editable));
 450
 451   if (new_text_length <= 63)
 452     text = buf;
 453   else
 454     text = g_new (gchar, new_text_length + 1);
 455
 456   text[new_text_length] = '\0';
 457   strncpy (text, new_text, new_text_length);
 458
 459   gtk_signal_emit (GTK_OBJECT (editable), editable_signals[INSERT_TEXT], text, new_text_length, position);
 460   gtk_signal_emit (GTK_OBJECT (editable), editable_signals[CHANGED]);
 461
 462   if (new_text_length > 63)
 463     g_free (text);
 464
 465   gtk_widget_unref (GTK_WIDGET (editable));
 466 }
 467
 468 static void
 469 gtk_old_editable_delete_text (GtkEditable *editable,
 470                               gint         start_pos,
 471                               gint         end_pos)
 472 {
 473   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (editable);
 474
 475   gtk_widget_ref (GTK_WIDGET (old_editable));
 476
 477   gtk_signal_emit (GTK_OBJECT (old_editable), editable_signals[DELETE_TEXT], start_pos, end_pos);
 478   gtk_signal_emit (GTK_OBJECT (old_editable), editable_signals[CHANGED]);
 479
 480   if (old_editable->selection_start_pos == old_editable->selection_end_pos &&
 481       old_editable->has_selection)
 482     gtk_old_editable_claim_selection (old_editable, FALSE, GDK_CURRENT_TIME);
 483
 484   gtk_widget_unref (GTK_WIDGET (old_editable));
 485 }
 486
 487 static void
 488 gtk_old_editable_update_text (GtkOldEditable *old_editable,
 489                               gint            start_pos,
 490                               gint            end_pos)
 491 {
 492   GtkOldEditableClass *klass = GTK_OLD_EDITABLE_GET_CLASS (old_editable);
 493   klass->update_text (GTK_OLD_EDITABLE (old_editable), start_pos, end_pos);
 494 }
 495
 496 static gchar *
 497 gtk_old_editable_get_chars  (GtkEditable      *editable,
 498                              gint              start,
 499                              gint              end)
 500 {
 501   GtkOldEditableClass *klass = GTK_OLD_EDITABLE_GET_CLASS (editable);
 502   return klass->get_chars (GTK_OLD_EDITABLE (editable), start, end);
 503 }
 504
 505 /*
 506  * Like gtk_editable_get_chars, but if the editable is not
 507  * visible, return asterisks; also convert result to UTF-8.
 508  */
 509 static void *
 510 gtk_old_editable_get_public_chars (GtkOldEditable   *old_editable,
 511                                    gint              start,
 512                                    gint              end)
 513 {
 514   gchar *str = NULL;
 515   gchar *charset;
 516   gboolean need_conversion = !g_get_charset (&charset);
 517
 518   if (old_editable->visible)
 519     {
 520       GError *error;
 521       gchar *tmp = gtk_editable_get_chars (GTK_EDITABLE (old_editable), start, end);
 522
 523       if (need_conversion)
 524         {
 525           str = g_convert (tmp, -1,
 526                            "UTF-8", charset,
 527                            NULL, NULL, &error);
 528
 529           if (!str)
 530             {
 531               g_warning ("Cannot convert text from charset to UTF-8 %s: %s", charset, error->message);
 532               g_error_free (error);
 533             }
 534
 535           g_free (tmp);
 536         }
 537       else
 538         str = tmp;
 539     }
 540   else
 541     {
 542       gint i;
 543       gint nchars = end - start;
 544
 545       if (nchars < 0)
 546         nchars = -nchars;
 547
 548       str = g_new (gchar, nchars + 1);
 549       for (i = 0; i<nchars; i++)
 550         str[i] = '*';
 551       str[i] = '\0';
 552     }
 553
 554   return str;
 555 }
 556
 557 static void
 558 gtk_old_editable_set_selection (GtkOldEditable *old_editable,
 559                                 gint            start_pos,
 560                                 gint            end_pos)
 561 {
 562   GtkOldEditableClass *klass = GTK_OLD_EDITABLE_GET_CLASS (old_editable);
 563   klass->set_selection (old_editable, start_pos, end_pos);
 564 }
 565
 566 static void
 567 gtk_old_editable_set_position (GtkEditable *editable,
 568                                gint            position)
 569 {
 570   GtkOldEditableClass *klass = GTK_OLD_EDITABLE_GET_CLASS (editable);
 571
 572   klass->set_position (GTK_OLD_EDITABLE (editable), position);
 573 }
 574
 575 static gint
 576 gtk_old_editable_get_position (GtkEditable *editable)
 577 {
 578   return GTK_OLD_EDITABLE (editable)->current_pos;
 579 }
 580
 581 static gint
 582 gtk_old_editable_selection_clear (GtkWidget         *widget,
 583                                   GdkEventSelection *event)
 584 {
 585   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (widget);
 586
 587   /* Let the selection handling code know that the selection
 588    * has been changed, since we've overriden the default handler */
 589   if (!gtk_selection_clear (widget, event))
 590     return FALSE;
 591
 592   if (old_editable->has_selection)
 593     {
 594       old_editable->has_selection = FALSE;
 595       gtk_old_editable_update_text (old_editable, old_editable->selection_start_pos,
 596                                     old_editable->selection_end_pos);
 597     }
 598
 599   return TRUE;
 600 }
 601
 602 static void
 603 gtk_old_editable_selection_get (GtkWidget        *widget,
 604                                 GtkSelectionData *selection_data,
 605                                 guint             info,
 606                                 guint             time)
 607 {
 608   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (widget);
 609   gint selection_start_pos;
 610   gint selection_end_pos;
 611
 612   gchar *str;
 613
 614   selection_start_pos = MIN (old_editable->selection_start_pos, old_editable->selection_end_pos);
 615   selection_end_pos = MAX (old_editable->selection_start_pos, old_editable->selection_end_pos);
 616
 617   str = gtk_old_editable_get_public_chars (old_editable,
 618                                            selection_start_pos,
 619                                            selection_end_pos);
 620
 621   if (str)
 622     {
 623       gtk_selection_data_set_text (selection_data, str);
 624       g_free (str);
 625     }
 626 }
 627
 628 static void
 629 gtk_old_editable_paste_received (GtkOldEditable *old_editable,
 630                                  const gchar    *text,
 631                                  gboolean        is_clipboard)
 632 {
 633   const gchar *str = NULL;
 634   gchar *charset;
 635   gboolean need_conversion = FALSE;
 636
 637   if (text)
 638     {
 639       GError *error;
 640
 641       need_conversion = !g_get_charset (&charset);
 642
 643       if (need_conversion)
 644         {
 645           str = g_convert_with_fallback (text, -1,
 646                                          charset, "UTF-8", NULL,
 647                                          NULL, NULL, &error);
 648           if (!str)
 649             {
 650               g_warning ("Cannot convert text from UTF-8 to %s: %s",
 651                          charset, error->message);
 652               g_error_free (error);
 653               return;
 654             }
 655         }
 656       else
 657         str = text;
 658     }
 659
 660   if (str)
 661     {
 662       gboolean reselect;
 663       gint old_pos;
 664       gint tmp_pos;
 665
 666       reselect = FALSE;
 667
 668       if ((old_editable->selection_start_pos != old_editable->selection_end_pos) &&
 669           (!old_editable->has_selection || is_clipboard))
 670         {
 671           reselect = TRUE;
 672
 673           /* Don't want to call gtk_editable_delete_selection here if we are going
 674            * to reclaim the selection to avoid extra server traffic */
 675           if (old_editable->has_selection)
 676             {
 677               gtk_editable_delete_text (GTK_EDITABLE (old_editable),
 678                                         MIN (old_editable->selection_start_pos, old_editable->selection_end_pos),
 679                                         MAX (old_editable->selection_start_pos, old_editable->selection_end_pos));
 680             }
 681           else
 682             gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
 683         }
 684
 685       tmp_pos = old_pos = old_editable->current_pos;
 686
 687       gtk_editable_insert_text (GTK_EDITABLE (old_editable), str, -1, &tmp_pos);
 688
 689       if (reselect)
 690         gtk_old_editable_set_selection (old_editable, old_pos, old_editable->current_pos);
 691
 692       if (str && str != text)
 693         g_free ((gchar *) str);
 694     }
 695 }
 696
 697 static void
 698 gtk_old_editable_selection_received  (GtkWidget         *widget,
 699                                       GtkSelectionData  *selection_data,
 700                                       guint              time)
 701 {
 702   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (widget);
 703
 704   gchar *text = gtk_selection_data_get_text (selection_data);
 705
 706   if (!text)
 707     {
 708       /* If we asked for UTF8 and didn't get it, try text; if we asked
 709        * for text and didn't get it, try string.  If we asked for
 710        * anything else and didn't get it, give up.
 711        */
 712       if (selection_data->target == gdk_atom_intern ("UTF8_STRING", FALSE))
 713         {
 714           gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
 715                                  gdk_atom_intern ("TEXT", FALSE),
 716                                  time);
 717           return;
 718         }
 719       else if (selection_data->target == gdk_atom_intern ("TEXT", FALSE))
 720         {
 721           gtk_selection_convert (widget, GDK_SELECTION_PRIMARY,
 722                                  GDK_TARGET_STRING,
 723                                  time);
 724           return;
 725         }
 726     }
 727
 728   if (text)
 729     {
 730       gtk_old_editable_paste_received (old_editable, text, FALSE);
 731       g_free (text);
 732     }
 733 }
 734
 735 static void
 736 old_editable_text_received_cb (GtkClipboard *clipboard,
 737                                const gchar  *text,
 738                                gpointer      data)
 739 {
 740   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (data);
 741
 742   gtk_old_editable_paste_received (old_editable, text, TRUE);
 743   g_object_unref (G_OBJECT (old_editable));
 744 }
 745
 746 void
 747 gtk_old_editable_claim_selection (GtkOldEditable *old_editable,
 748                                   gboolean        claim,
 749                                   guint32         time)
 750 {
 751   g_return_if_fail (GTK_IS_OLD_EDITABLE (old_editable));
 752   g_return_if_fail (GTK_WIDGET_REALIZED (old_editable));
 753
 754   old_editable->has_selection = FALSE;
 755
 756   if (claim)
 757     {
 758       if (gtk_selection_owner_set (GTK_WIDGET (old_editable), GDK_SELECTION_PRIMARY, time))
 759         old_editable->has_selection = TRUE;
 760     }
 761   else
 762     {
 763       if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == GTK_WIDGET (old_editable)->window)
 764         gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, time);
 765     }
 766 }
 767
 768 static void
 769 gtk_old_editable_set_selection_bounds (GtkEditable *editable,
 770                                        gint         start,
 771                                        gint         end)
 772 {
 773   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (editable);
 774
 775   if (GTK_WIDGET_REALIZED (editable))
 776     gtk_old_editable_claim_selection (old_editable, start != end, GDK_CURRENT_TIME);
 777
 778   gtk_old_editable_set_selection (old_editable, start, end);
 779 }
 780
 781 static gboolean
 782 gtk_old_editable_get_selection_bounds (GtkEditable *editable,
 783                                        gint        *start,
 784                                        gint        *end)
 785 {
 786   GtkOldEditable *old_editable = GTK_OLD_EDITABLE (editable);
 787
 788   *start = old_editable->selection_start_pos;
 789   *end = old_editable->selection_end_pos;
 790
 791   return (old_editable->selection_start_pos != old_editable->selection_end_pos);
 792 }
 793
 794 static void
 795 gtk_old_editable_real_set_editable (GtkOldEditable *old_editable,
 796                                     gboolean        is_editable)
 797 {
 798   is_editable = is_editable != FALSE;
 799
 800   if (old_editable->editable != is_editable)
 801     {
 802       old_editable->editable = is_editable;
 803       gtk_widget_queue_draw (GTK_WIDGET (old_editable));
 804     }
 805 }
 806
 807 static void
 808 gtk_old_editable_real_cut_clipboard (GtkOldEditable *old_editable)
 809 {
 810   gtk_old_editable_real_copy_clipboard (old_editable);
 811   gtk_editable_delete_selection (GTK_EDITABLE (old_editable));
 812 }
 813
 814 static void
 815 gtk_old_editable_real_copy_clipboard (GtkOldEditable *old_editable)
 816 {
 817   gint selection_start_pos;
 818   gint selection_end_pos;
 819
 820   selection_start_pos = MIN (old_editable->selection_start_pos, old_editable->selection_end_pos);
 821   selection_end_pos = MAX (old_editable->selection_start_pos, old_editable->selection_end_pos);
 822
 823   if (selection_start_pos != selection_end_pos)
 824     {
 825       gchar *text = gtk_old_editable_get_public_chars (old_editable,
 826                                                        selection_start_pos,
 827                                                        selection_end_pos);
 828
 829       if (text)
 830         {
 831           gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), text, -1);
 832           g_free (text);
 833         }
 834     }
 835 }
 836
 837 static void
 838 gtk_old_editable_real_paste_clipboard (GtkOldEditable *old_editable)
 839 {
 840   g_object_ref (G_OBJECT (old_editable));
 841   gtk_clipboard_request_text (gtk_clipboard_get (GDK_NONE),
 842                               old_editable_text_received_cb, old_editable);
 843 }
 844
 845 void
 846 gtk_old_editable_changed (GtkOldEditable *old_editable)
 847 {
 848   g_return_if_fail (GTK_IS_OLD_EDITABLE (old_editable));
 849
 850   gtk_signal_emit (GTK_OBJECT (old_editable), editable_signals[CHANGED]);
 851 }