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