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