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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 2000 Red Hat, Inc.
   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 Free
  16  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 #include <config.h>
  20
  21 #include <string.h>
  22
  23 #include "gtkmodules.h"
  24 #include "gtksettings.h"
  25 #include "gtkrc.h"
  26 #include "gtkintl.h"
  27 #include "gtkwidget.h"
  28 #include "gtkprivate.h"
  29 #include "gtkalias.h"
  30
  31 #ifdef GDK_WINDOWING_X11
  32 #include "x11/gdkx.h"
  33 #endif
  34
  35 typedef struct _GtkSettingsValuePrivate GtkSettingsValuePrivate;
  36
  37 typedef enum
  38 {
  39   GTK_SETTINGS_SOURCE_DEFAULT,
  40   GTK_SETTINGS_SOURCE_RC_FILE,
  41   GTK_SETTINGS_SOURCE_APPLICATION
  42 } GtkSettingsSource;
  43
  44 struct _GtkSettingsValuePrivate
  45 {
  46   GtkSettingsValue public;
  47   GtkSettingsSource source;
  48 };
  49
  50 struct _GtkSettingsPropertyValue
  51 {
  52   GValue value;
  53   GtkSettingsSource source;
  54 };
  55
  56 enum {
  57   PROP_0,
  58   PROP_DOUBLE_CLICK_TIME,
  59   PROP_DOUBLE_CLICK_DISTANCE,
  60   PROP_CURSOR_BLINK,
  61   PROP_CURSOR_BLINK_TIME,
  62   PROP_SPLIT_CURSOR,
  63   PROP_THEME_NAME,
  64   PROP_ICON_THEME_NAME,
  65   PROP_KEY_THEME_NAME,
  66   PROP_MENU_BAR_ACCEL,
  67   PROP_DND_DRAG_THRESHOLD,
  68   PROP_FONT_NAME,
  69   PROP_ICON_SIZES,
  70   PROP_MODULES,
  71 #ifdef GDK_WINDOWING_X11
  72   PROP_XFT_ANTIALIAS,
  73   PROP_XFT_HINTING,
  74   PROP_XFT_HINTSTYLE,
  75   PROP_XFT_RGBA,
  76   PROP_XFT_DPI,
  77   PROP_CURSOR_THEME_NAME,
  78   PROP_CURSOR_THEME_SIZE,
  79 #endif
  80   PROP_ALTERNATIVE_BUTTON_ORDER
  81 };
  82
  83
  84 /* --- prototypes --- */
  85 static void     gtk_settings_init                (GtkSettings           *settings);
  86 static void     gtk_settings_class_init          (GtkSettingsClass      *class);
  87 static void     gtk_settings_finalize            (GObject               *object);
  88 static void     gtk_settings_get_property        (GObject               *object,
  89                                                   guint                  property_id,
  90                                                   GValue                *value,
  91                                                   GParamSpec            *pspec);
  92 static void     gtk_settings_set_property        (GObject               *object,
  93                                                   guint                  property_id,
  94                                                   const GValue          *value,
  95                                                   GParamSpec            *pspec);
  96 static void     gtk_settings_notify              (GObject               *object,
  97                                                   GParamSpec            *pspec);
  98 static guint    settings_install_property_parser (GtkSettingsClass      *class,
  99                                                   GParamSpec            *pspec,
 100                                                   GtkRcPropertyParser    parser);
 101 static void    settings_update_double_click      (GtkSettings           *settings);
 102 static void    settings_update_modules           (GtkSettings           *settings);
 103
 104 #ifdef GDK_WINDOWING_X11
 105 static void    settings_update_cursor_theme      (GtkSettings           *settings);
 106 static void    settings_update_resolution        (GtkSettings           *settings);
 107 static void    settings_update_font_options      (GtkSettings           *settings);
 108 #endif
 109
 110
 111
 112 /* --- variables --- */
 113 static gpointer          parent_class = NULL;
 114 static GQuark            quark_property_parser = 0;
 115 static GSList           *object_list = NULL;
 116 static guint             class_n_properties = 0;
 117
 118
 119 /* --- functions --- */
 120 GType
 121 gtk_settings_get_type (void)
 122 {
 123   static GType settings_type = 0;
 124
 125   if (!settings_type)
 126     {
 127       static const GTypeInfo settings_info =
 128       {
 129         sizeof (GtkSettingsClass),
 130         NULL,           /* base_init */
 131         NULL,           /* base_finalize */
 132         (GClassInitFunc) gtk_settings_class_init,
 133         NULL,           /* class_finalize */
 134         NULL,           /* class_data */
 135         sizeof (GtkSettings),
 136         0,              /* n_preallocs */
 137         (GInstanceInitFunc) gtk_settings_init,
 138       };
 139
 140       settings_type = g_type_register_static (G_TYPE_OBJECT, I_("GtkSettings"),
 141                                               &settings_info, 0);
 142     }
 143
 144   return settings_type;
 145 }
 146
 147 static void
 148 gtk_settings_init (GtkSettings *settings)
 149 {
 150   GParamSpec **pspecs, **p;
 151   guint i = 0;
 152
 153   g_datalist_init (&settings->queued_settings);
 154   object_list = g_slist_prepend (object_list, settings);
 155
 156   /* build up property array for all yet existing properties and queue
 157    * notification for them (at least notification for internal properties
 158    * will instantly be caught)
 159    */
 160   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
 161   for (p = pspecs; *p; p++)
 162     if ((*p)->owner_type == G_OBJECT_TYPE (settings))
 163       i++;
 164   settings->property_values = g_new0 (GtkSettingsPropertyValue, i);
 165   i = 0;
 166   g_object_freeze_notify (G_OBJECT (settings));
 167   for (p = pspecs; *p; p++)
 168     {
 169       GParamSpec *pspec = *p;
 170
 171       if (pspec->owner_type != G_OBJECT_TYPE (settings))
 172         continue;
 173       g_value_init (&settings->property_values[i].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 174       g_param_value_set_default (pspec, &settings->property_values[i].value);
 175       g_object_notify (G_OBJECT (settings), pspec->name);
 176       settings->property_values[i].source = GTK_SETTINGS_SOURCE_DEFAULT;
 177       i++;
 178     }
 179   g_object_thaw_notify (G_OBJECT (settings));
 180   g_free (pspecs);
 181 }
 182
 183 static void
 184 gtk_settings_class_init (GtkSettingsClass *class)
 185 {
 186   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 187   guint result;
 188
 189   parent_class = g_type_class_peek_parent (class);
 190
 191   gobject_class->finalize = gtk_settings_finalize;
 192   gobject_class->get_property = gtk_settings_get_property;
 193   gobject_class->set_property = gtk_settings_set_property;
 194   gobject_class->notify = gtk_settings_notify;
 195
 196   quark_property_parser = g_quark_from_static_string ("gtk-rc-property-parser");
 197
 198   result = settings_install_property_parser (class,
 199                                              g_param_spec_int ("gtk-double-click-time",
 200                                                                P_("Double Click Time"),
 201                                                                P_("Maximum time allowed between two clicks for them to be considered a double click (in milliseconds)"),
 202                                                                0, G_MAXINT, 250,
 203                                                                GTK_PARAM_READWRITE),
 204                                              NULL);
 205   g_assert (result == PROP_DOUBLE_CLICK_TIME);
 206   result = settings_install_property_parser (class,
 207                                              g_param_spec_int ("gtk-double-click-distance",
 208                                                                P_("Double Click Distance"),
 209                                                                P_("Maximum distance allowed between two clicks for them to be considered a double click (in pixels)"),
 210                                                                0, G_MAXINT, 5,
 211                                                                GTK_PARAM_READWRITE),
 212                                              NULL);
 213   g_assert (result == PROP_DOUBLE_CLICK_DISTANCE);
 214   result = settings_install_property_parser (class,
 215                                              g_param_spec_boolean ("gtk-cursor-blink",
 216                                                                    P_("Cursor Blink"),
 217                                                                    P_("Whether the cursor should blink"),
 218                                                                    TRUE,
 219                                                                    GTK_PARAM_READWRITE),
 220                                              NULL);
 221   g_assert (result == PROP_CURSOR_BLINK);
 222   result = settings_install_property_parser (class,
 223                                              g_param_spec_int ("gtk-cursor-blink-time",
 224                                                                P_("Cursor Blink Time"),
 225                                                                P_("Length of the cursor blink cycle, in milleseconds"),
 226                                                                100, G_MAXINT, 1200,
 227                                                                GTK_PARAM_READWRITE),
 228                                              NULL);
 229   g_assert (result == PROP_CURSOR_BLINK_TIME);
 230   result = settings_install_property_parser (class,
 231                                              g_param_spec_boolean ("gtk-split-cursor",
 232                                                                    P_("Split Cursor"),
 233                                                                    P_("Whether two cursors should be displayed for mixed left-to-right and right-to-left text"),
 234                                                                    TRUE,
 235                                                                    GTK_PARAM_READWRITE),
 236                                              NULL);
 237   g_assert (result == PROP_SPLIT_CURSOR);
 238   result = settings_install_property_parser (class,
 239                                              g_param_spec_string ("gtk-theme-name",
 240                                                                    P_("Theme Name"),
 241                                                                    P_("Name of theme RC file to load"),
 242                                                                   "Raleigh",
 243                                                                   GTK_PARAM_READWRITE),
 244                                              NULL);
 245   g_assert (result == PROP_THEME_NAME);
 246   result = settings_install_property_parser (class,
 247                                              g_param_spec_string ("gtk-icon-theme-name",
 248                                                                   P_("Icon Theme Name"),
 249                                                                   P_("Name of icon theme to use"),
 250                                                                   "hicolor",
 251                                                                   GTK_PARAM_READWRITE),
 252                                              NULL);
 253   g_assert (result == PROP_ICON_THEME_NAME);
 254
 255   result = settings_install_property_parser (class,
 256                                              g_param_spec_string ("gtk-key-theme-name",
 257                                                                   P_("Key Theme Name"),
 258                                                                   P_("Name of key theme RC file to load"),
 259                                                                   NULL,
 260                                                                   GTK_PARAM_READWRITE),
 261                                              NULL);
 262   g_assert (result == PROP_KEY_THEME_NAME);
 263
 264   result = settings_install_property_parser (class,
 265                                              g_param_spec_string ("gtk-menu-bar-accel",
 266                                                                   P_("Menu bar accelerator"),
 267                                                                   P_("Keybinding to activate the menu bar"),
 268                                                                   "F10",
 269                                                                   GTK_PARAM_READWRITE),
 270                                              NULL);
 271   g_assert (result == PROP_MENU_BAR_ACCEL);
 272
 273   result = settings_install_property_parser (class,
 274                                              g_param_spec_int ("gtk-dnd-drag-threshold",
 275                                                                P_("Drag threshold"),
 276                                                                P_("Number of pixels the cursor can move before dragging"),
 277                                                                1, G_MAXINT, 8,
 278                                                                GTK_PARAM_READWRITE),
 279                                              NULL);
 280   g_assert (result == PROP_DND_DRAG_THRESHOLD);
 281
 282   result = settings_install_property_parser (class,
 283                                              g_param_spec_string ("gtk-font-name",
 284                                                                    P_("Font Name"),
 285                                                                    P_("Name of default font to use"),
 286                                                                   "Sans 10",
 287                                                                   GTK_PARAM_READWRITE),
 288                                              NULL);
 289   g_assert (result == PROP_FONT_NAME);
 290
 291   result = settings_install_property_parser (class,
 292                                              g_param_spec_string ("gtk-icon-sizes",
 293                                                                    P_("Icon Sizes"),
 294                                                                    P_("List of icon sizes (gtk-menu=16,16:gtk-button=20,20..."),
 295                                                                   NULL,
 296                                                                   GTK_PARAM_READWRITE),
 297                                              NULL);
 298   g_assert (result == PROP_ICON_SIZES);
 299
 300   result = settings_install_property_parser (class,
 301                                              g_param_spec_string ("gtk-modules",
 302                                                                   P_("GTK Modules"),
 303                                                                   P_("List of currently active GTK modules"),
 304                                                                   NULL,
 305                                                                   GTK_PARAM_READWRITE),
 306                                              NULL);
 307   g_assert (result == PROP_MODULES);
 308
 309 #ifdef GDK_WINDOWING_X11
 310   result = settings_install_property_parser (class,
 311                                              g_param_spec_int ("gtk-xft-antialias",
 312                                                                P_("Xft Antialias"),
 313                                                                P_("Whether to antialias Xft fonts; 0=no, 1=yes, -1=default"),
 314                                                                -1, 1, -1,
 315                                                                GTK_PARAM_READWRITE),
 316                                              NULL);
 317
 318   g_assert (result == PROP_XFT_ANTIALIAS);
 319
 320   result = settings_install_property_parser (class,
 321                                              g_param_spec_int ("gtk-xft-hinting",
 322                                                                P_("Xft Hinting"),
 323                                                                P_("Whether to hint Xft fonts; 0=no, 1=yes, -1=default"),
 324                                                                -1, 1, -1,
 325                                                                GTK_PARAM_READWRITE),
 326                                              NULL);
 327
 328   g_assert (result == PROP_XFT_HINTING);
 329
 330   result = settings_install_property_parser (class,
 331                                              g_param_spec_string ("gtk-xft-hintstyle",
 332                                                                   P_("Xft Hint Style"),
 333                                                                   P_("What degree of hinting to use; hintnone, hintslight, hintmedium, or hintfull"),
 334                                                                   NULL,
 335                                                                   GTK_PARAM_READWRITE),
 336                                               NULL);
 337
 338   g_assert (result == PROP_XFT_HINTSTYLE);
 339
 340   result = settings_install_property_parser (class,
 341                                              g_param_spec_string ("gtk-xft-rgba",
 342                                                                   P_("Xft RGBA"),
 343                                                                   P_("Type of subpixel antialiasing; none, rgb, bgr, vrgb, vbgr"),
 344                                                                   NULL,
 345                                                                   GTK_PARAM_READWRITE),
 346                                              NULL);
 347
 348   g_assert (result == PROP_XFT_RGBA);
 349
 350   result = settings_install_property_parser (class,
 351                                              g_param_spec_int ("gtk-xft-dpi",
 352                                                                P_("Xft DPI"),
 353                                                                P_("Resolution for Xft, in 1024 * dots/inch. -1 to use default value"),
 354                                                                -1, 1024*1024, -1,
 355                                                                GTK_PARAM_READWRITE),
 356                                              NULL);
 357
 358   g_assert (result == PROP_XFT_DPI);
 359
 360   result = settings_install_property_parser (class,
 361                                              g_param_spec_string ("gtk-cursor-theme-name",
 362                                                                   P_("Cursor theme name"),
 363                                                                   P_("Name of the cursor theme to use"),
 364                                                                   NULL,
 365                                                                   GTK_PARAM_READWRITE),
 366                                              NULL);
 367   g_assert (result == PROP_CURSOR_THEME_NAME);
 368
 369   result = settings_install_property_parser (class,
 370                                              g_param_spec_int ("gtk-cursor-theme-size",
 371                                                                P_("Cursor theme size"),
 372                                                                P_("Size to use for cursors"),
 373                                                                0, 128, 24,
 374                                                                GTK_PARAM_READWRITE),
 375                                              NULL);
 376
 377   g_assert (result == PROP_CURSOR_THEME_SIZE);
 378
 379 #endif  /* GDK_WINDOWING_X11 */
 380   result = settings_install_property_parser (class,
 381                                              g_param_spec_boolean ("gtk-alternative-button-order",
 382                                                                    P_("Alternative button order"),
 383                                                                    P_("Whether buttons in dialogs should use the alternative button order"),
 384                                                                    FALSE,
 385                                                                    GTK_PARAM_READWRITE),
 386                                              NULL);
 387   g_assert (result == PROP_ALTERNATIVE_BUTTON_ORDER);
 388 }
 389
 390 static void
 391 gtk_settings_finalize (GObject *object)
 392 {
 393   GtkSettings *settings = GTK_SETTINGS (object);
 394   guint i;
 395
 396   object_list = g_slist_remove (object_list, settings);
 397
 398   for (i = 0; i < class_n_properties; i++)
 399     g_value_unset (&settings->property_values[i].value);
 400   g_free (settings->property_values);
 401
 402   g_datalist_clear (&settings->queued_settings);
 403
 404   G_OBJECT_CLASS (parent_class)->finalize (object);
 405 }
 406
 407 /**
 408  * gtk_settings_get_for_screen:
 409  * @screen : a #GdkScreen.
 410  *
 411  * Gets the #GtkSettings object for @screen, creating it if necessary.
 412  *
 413  * Return value: a #GtkSettings object.
 414  *
 415  * Since: 2.2
 416  */
 417 GtkSettings*
 418 gtk_settings_get_for_screen (GdkScreen *screen)
 419 {
 420   GtkSettings *settings;
 421
 422   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 423
 424   settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
 425   if (!settings)
 426     {
 427       settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
 428       settings->screen = screen;
 429       g_object_set_data (G_OBJECT (screen), I_("gtk-settings"), settings);
 430
 431       gtk_rc_reparse_all_for_settings (settings, TRUE);
 432       settings_update_double_click (settings);
 433 #ifdef GDK_WINDOWING_X11
 434       settings_update_cursor_theme (settings);
 435       settings_update_resolution (settings);
 436       settings_update_font_options (settings);
 437 #endif
 438     }
 439
 440   return settings;
 441 }
 442
 443 /**
 444  * gtk_settings_get_default:
 445  *
 446  * Gets the #GtkSettings object for the default GDK screen, creating
 447  * it if necessary. See gtk_settings_get_for_screen().
 448  *
 449  * Return value: a #GtkSettings object. If there is no default
 450  *  screen, then returns %NULL.
 451  **/
 452 GtkSettings*
 453 gtk_settings_get_default (void)
 454 {
 455   GdkScreen *screen = gdk_screen_get_default ();
 456
 457   if (screen)
 458     return gtk_settings_get_for_screen (screen);
 459   else
 460     return NULL;
 461 }
 462
 463 static void
 464 gtk_settings_set_property (GObject      *object,
 465                            guint         property_id,
 466                            const GValue *value,
 467                            GParamSpec   *pspec)
 468 {
 469   GtkSettings *settings = GTK_SETTINGS (object);
 470
 471   g_value_copy (value, &settings->property_values[property_id - 1].value);
 472   settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
 473 }
 474
 475 static void
 476 gtk_settings_get_property (GObject     *object,
 477                            guint        property_id,
 478                            GValue      *value,
 479                            GParamSpec  *pspec)
 480 {
 481   GtkSettings *settings = GTK_SETTINGS (object);
 482   GType value_type = G_VALUE_TYPE (value);
 483   GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
 484
 485   /* For enums and strings, we need to get the value as a string,
 486    * not as an int, since we support using names/nicks as the setting
 487    * value.
 488    */
 489   if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
 490        !(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
 491       g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
 492       g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
 493     {
 494       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 495           !gdk_screen_get_setting (settings->screen, pspec->name, value))
 496         g_value_copy (&settings->property_values[property_id - 1].value, value);
 497       else
 498         g_param_value_validate (pspec, value);
 499     }
 500   else
 501     {
 502       GValue val = { 0, };
 503
 504       /* Try to get xsetting as a string and parse it. */
 505
 506       g_value_init (&val, G_TYPE_STRING);
 507
 508       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 509           !gdk_screen_get_setting (settings->screen, pspec->name, &val))
 510         {
 511           g_value_copy (&settings->property_values[property_id - 1].value, value);
 512         }
 513       else
 514         {
 515           GValue tmp_value = { 0, };
 516           GValue gstring_value = { 0, };
 517           GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
 518
 519           g_value_init (&gstring_value, G_TYPE_GSTRING);
 520
 521           g_value_take_boxed (&gstring_value,
 522                               g_string_new (g_value_get_string (&val)));
 523
 524           g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 525
 526           if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
 527                                                      pspec, &tmp_value))
 528             {
 529               g_value_copy (&tmp_value, value);
 530               g_param_value_validate (pspec, value);
 531             }
 532           else
 533             {
 534               g_value_copy (&settings->property_values[property_id - 1].value, value);
 535             }
 536
 537           g_value_unset (&gstring_value);
 538           g_value_unset (&tmp_value);
 539         }
 540
 541       g_value_unset (&val);
 542     }
 543 }
 544
 545 static void
 546 gtk_settings_notify (GObject    *object,
 547                      GParamSpec *pspec)
 548 {
 549   GtkSettings *settings = GTK_SETTINGS (object);
 550   guint property_id = pspec->param_id;
 551
 552   if (settings->screen == NULL) /* initialization */
 553     return;
 554
 555   switch (property_id)
 556     {
 557     case PROP_MODULES:
 558       settings_update_modules (settings);
 559       break;
 560     case PROP_DOUBLE_CLICK_TIME:
 561     case PROP_DOUBLE_CLICK_DISTANCE:
 562       settings_update_double_click (settings);
 563       break;
 564 #ifdef GDK_WINDOWING_X11
 565     case PROP_XFT_DPI:
 566       settings_update_resolution (settings);
 567       /* This is a hack because with gtk_rc_reset_styles() doesn't get
 568        * widgets with gtk_widget_style_set(), and also causes more
 569        * recomputation than necessary.
 570        */
 571       gtk_rc_reset_styles (GTK_SETTINGS (object));
 572       break;
 573     case PROP_XFT_ANTIALIAS:
 574     case PROP_XFT_HINTING:
 575     case PROP_XFT_HINTSTYLE:
 576     case PROP_XFT_RGBA:
 577       settings_update_font_options (settings);
 578       gtk_rc_reset_styles (GTK_SETTINGS (object));
 579       break;
 580     case PROP_CURSOR_THEME_NAME:
 581     case PROP_CURSOR_THEME_SIZE:
 582       settings_update_cursor_theme (settings);
 583       break;
 584 #endif /* GDK_WINDOWING_X11 */
 585     }
 586 }
 587
 588 gboolean
 589 _gtk_settings_parse_convert (GtkRcPropertyParser parser,
 590                              const GValue       *src_value,
 591                              GParamSpec         *pspec,
 592                              GValue             *dest_value)
 593 {
 594   gboolean success = FALSE;
 595
 596   g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
 597
 598   if (parser)
 599     {
 600       GString *gstring;
 601       gboolean free_gstring = TRUE;
 602
 603       if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
 604         {
 605           gstring = g_value_get_boxed (src_value);
 606           free_gstring = FALSE;
 607         }
 608       else if (G_VALUE_HOLDS_LONG (src_value))
 609         {
 610           gstring = g_string_new (NULL);
 611           g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
 612         }
 613       else if (G_VALUE_HOLDS_DOUBLE (src_value))
 614         {
 615           gstring = g_string_new (NULL);
 616           g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
 617         }
 618       else if (G_VALUE_HOLDS_STRING (src_value))
 619         {
 620           gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
 621
 622           gstring = g_string_new ("\"");
 623           g_string_append (gstring, tstr);
 624           g_string_append_c (gstring, '\"');
 625           g_free (tstr);
 626         }
 627       else
 628         {
 629           g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
 630           gstring = NULL; /* silence compiler */
 631         }
 632
 633       success = (parser (pspec, gstring, dest_value) &&
 634                  !g_param_value_validate (pspec, dest_value));
 635
 636       if (free_gstring)
 637         g_string_free (gstring, TRUE);
 638     }
 639   else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
 640     {
 641       if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
 642         {
 643           GString *gstring = g_value_get_boxed (src_value);
 644
 645           g_value_set_string (dest_value, gstring ? gstring->str : NULL);
 646           success = !g_param_value_validate (pspec, dest_value);
 647         }
 648     }
 649   else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
 650     success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
 651
 652   return success;
 653 }
 654
 655 static void
 656 apply_queued_setting (GtkSettings             *data,
 657                       GParamSpec              *pspec,
 658                       GtkSettingsValuePrivate *qvalue)
 659 {
 660   GValue tmp_value = { 0, };
 661   GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
 662
 663   g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 664   if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
 665                                    pspec, &tmp_value))
 666     {
 667       if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
 668         {
 669           g_object_set_property (G_OBJECT (data), pspec->name, &tmp_value);
 670           data->property_values[pspec->param_id - 1].source = qvalue->source;
 671         }
 672     }
 673   else
 674     {
 675       gchar *debug = g_strdup_value_contents (&qvalue->public.value);
 676
 677       g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
 678                  qvalue->public.origin,
 679                  pspec->name,
 680                  g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
 681                  debug,
 682                  G_VALUE_TYPE_NAME (&tmp_value));
 683       g_free (debug);
 684     }
 685   g_value_unset (&tmp_value);
 686 }
 687
 688 static guint
 689 settings_install_property_parser (GtkSettingsClass   *class,
 690                                   GParamSpec         *pspec,
 691                                   GtkRcPropertyParser parser)
 692 {
 693   GSList *node, *next;
 694
 695   switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
 696     {
 697     case G_TYPE_BOOLEAN:
 698     case G_TYPE_UCHAR:
 699     case G_TYPE_CHAR:
 700     case G_TYPE_UINT:
 701     case G_TYPE_INT:
 702     case G_TYPE_ULONG:
 703     case G_TYPE_LONG:
 704     case G_TYPE_FLOAT:
 705     case G_TYPE_DOUBLE:
 706     case G_TYPE_STRING:
 707       break;
 708     default:
 709       if (!parser)
 710         {
 711           g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
 712                      pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
 713           return 0;
 714         }
 715     }
 716   if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
 717     {
 718       g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
 719                  pspec->name);
 720       return 0;
 721     }
 722
 723   for (node = object_list; node; node = node->next)
 724     g_object_freeze_notify (node->data);
 725
 726   g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
 727   g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
 728
 729   for (node = object_list; node; node = node->next)
 730     {
 731       GtkSettings *settings = node->data;
 732       GtkSettingsValuePrivate *qvalue;
 733
 734       settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
 735       settings->property_values[class_n_properties - 1].value.g_type = 0;
 736       g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 737       g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
 738       settings->property_values[class_n_properties - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
 739       g_object_notify (G_OBJECT (settings), pspec->name);
 740
 741       qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
 742       if (qvalue)
 743         apply_queued_setting (settings, pspec, qvalue);
 744     }
 745
 746   for (node = object_list; node; node = next)
 747     {
 748       next = node->next;
 749       g_object_thaw_notify (node->data);
 750     }
 751
 752   return class_n_properties;
 753 }
 754
 755 GtkRcPropertyParser
 756 _gtk_rc_property_parser_from_type (GType type)
 757 {
 758   if (type == GDK_TYPE_COLOR)
 759     return gtk_rc_property_parse_color;
 760   else if (type == GTK_TYPE_REQUISITION)
 761     return gtk_rc_property_parse_requisition;
 762   else if (type == GTK_TYPE_BORDER)
 763     return gtk_rc_property_parse_border;
 764   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
 765     return gtk_rc_property_parse_enum;
 766   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
 767     return gtk_rc_property_parse_flags;
 768   else
 769     return NULL;
 770 }
 771
 772 void
 773 gtk_settings_install_property (GParamSpec *pspec)
 774 {
 775   GtkRcPropertyParser parser;
 776
 777   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
 778
 779   parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
 780
 781   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
 782 }
 783
 784 void
 785 gtk_settings_install_property_parser (GParamSpec          *pspec,
 786                                       GtkRcPropertyParser  parser)
 787 {
 788   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
 789   g_return_if_fail (parser != NULL);
 790
 791   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
 792 }
 793
 794 static void
 795 free_value (gpointer data)
 796 {
 797   GtkSettingsValuePrivate *qvalue = data;
 798
 799   g_value_unset (&qvalue->public.value);
 800   g_free (qvalue->public.origin);
 801   g_free (qvalue);
 802 }
 803
 804 static void
 805 gtk_settings_set_property_value_internal (GtkSettings            *settings,
 806                                           const gchar            *prop_name,
 807                                           const GtkSettingsValue *new_value,
 808                                           GtkSettingsSource       source)
 809 {
 810   GtkSettingsValuePrivate *qvalue;
 811   GParamSpec *pspec;
 812   gchar *name;
 813   GQuark name_quark;
 814
 815   if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
 816       !G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
 817       !G_VALUE_HOLDS_STRING (&new_value->value) &&
 818       !G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
 819     {
 820       g_warning (G_STRLOC ": value type invalid");
 821       return;
 822     }
 823
 824   name = g_strdup (prop_name);
 825   g_strcanon (name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
 826   name_quark = g_quark_from_string (name);
 827   g_free (name);
 828
 829   qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
 830   if (!qvalue)
 831     {
 832       qvalue = g_new0 (GtkSettingsValuePrivate, 1);
 833       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
 834     }
 835   else
 836     {
 837       g_free (qvalue->public.origin);
 838       g_value_unset (&qvalue->public.value);
 839     }
 840   qvalue->public.origin = g_strdup (new_value->origin);
 841   g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
 842   g_value_copy (&new_value->value, &qvalue->public.value);
 843   qvalue->source = source;
 844   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
 845   if (pspec)
 846     apply_queued_setting (settings, pspec, qvalue);
 847 }
 848
 849 void
 850 gtk_settings_set_property_value (GtkSettings            *settings,
 851                                  const gchar            *prop_name,
 852                                  const GtkSettingsValue *new_value)
 853 {
 854   g_return_if_fail (GTK_SETTINGS (settings));
 855   g_return_if_fail (prop_name != NULL);
 856   g_return_if_fail (new_value != NULL);
 857   g_return_if_fail (new_value->origin != NULL);
 858
 859   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
 860                                             GTK_SETTINGS_SOURCE_APPLICATION);
 861 }
 862
 863 void
 864 _gtk_settings_set_property_value_from_rc (GtkSettings            *settings,
 865                                           const gchar            *prop_name,
 866                                           const GtkSettingsValue *new_value)
 867 {
 868   g_return_if_fail (GTK_SETTINGS (settings));
 869   g_return_if_fail (prop_name != NULL);
 870   g_return_if_fail (new_value != NULL);
 871   g_return_if_fail (new_value->origin != NULL);
 872
 873   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
 874                                             GTK_SETTINGS_SOURCE_RC_FILE);
 875 }
 876
 877 void
 878 gtk_settings_set_string_property (GtkSettings *settings,
 879                                   const gchar *name,
 880                                   const gchar *v_string,
 881                                   const gchar *origin)
 882 {
 883   GtkSettingsValue svalue = { NULL, { 0, }, };
 884
 885   g_return_if_fail (GTK_SETTINGS (settings));
 886   g_return_if_fail (name != NULL);
 887   g_return_if_fail (v_string != NULL);
 888   g_return_if_fail (origin != NULL);
 889
 890   svalue.origin = (gchar*) origin;
 891   g_value_init (&svalue.value, G_TYPE_STRING);
 892   g_value_set_static_string (&svalue.value, v_string);
 893   gtk_settings_set_property_value (settings, name, &svalue);
 894   g_value_unset (&svalue.value);
 895 }
 896
 897 void
 898 gtk_settings_set_long_property (GtkSettings *settings,
 899                                 const gchar *name,
 900                                 glong        v_long,
 901                                 const gchar *origin)
 902 {
 903   GtkSettingsValue svalue = { NULL, { 0, }, };
 904
 905   g_return_if_fail (GTK_SETTINGS (settings));
 906   g_return_if_fail (name != NULL);
 907   g_return_if_fail (origin != NULL);
 908
 909   svalue.origin = (gchar*) origin;
 910   g_value_init (&svalue.value, G_TYPE_LONG);
 911   g_value_set_long (&svalue.value, v_long);
 912   gtk_settings_set_property_value (settings, name, &svalue);
 913   g_value_unset (&svalue.value);
 914 }
 915
 916 void
 917 gtk_settings_set_double_property (GtkSettings *settings,
 918                                   const gchar *name,
 919                                   gdouble      v_double,
 920                                   const gchar *origin)
 921 {
 922   GtkSettingsValue svalue = { NULL, { 0, }, };
 923
 924   g_return_if_fail (GTK_SETTINGS (settings));
 925   g_return_if_fail (name != NULL);
 926   g_return_if_fail (origin != NULL);
 927
 928   svalue.origin = (gchar*) origin;
 929   g_value_init (&svalue.value, G_TYPE_DOUBLE);
 930   g_value_set_double (&svalue.value, v_double);
 931   gtk_settings_set_property_value (settings, name, &svalue);
 932   g_value_unset (&svalue.value);
 933 }
 934
 935 /**
 936  * gtk_rc_property_parse_color:
 937  * @pspec: a #GParamSpec
 938  * @gstring: the #GString to be parsed
 939  * @property_value: a #GValue which must hold #GdkColor values.
 940  *
 941  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
 942  * or gtk_widget_class_install_style_property_parser() which parses a
 943  * color given either by its name or in the form
 944  * <literal>{ red, green, blue }</literal> where %red, %green and
 945  * %blue are integers between 0 and 65535 or floating-point numbers
 946  * between 0 and 1.
 947  *
 948  * Return value: %TRUE if @gstring could be parsed and @property_value
 949  * has been set to the resulting #GdkColor.
 950  **/
 951 gboolean
 952 gtk_rc_property_parse_color (const GParamSpec *pspec,
 953                              const GString    *gstring,
 954                              GValue           *property_value)
 955 {
 956   GdkColor color = { 0, 0, 0, 0, };
 957   GScanner *scanner;
 958   gboolean success;
 959
 960   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
 961   g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
 962
 963   scanner = gtk_rc_scanner_new ();
 964   g_scanner_input_text (scanner, gstring->str, gstring->len);
 965   if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
 966       g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
 967     {
 968       g_value_set_boxed (property_value, &color);
 969       success = TRUE;
 970     }
 971   else
 972     success = FALSE;
 973   g_scanner_destroy (scanner);
 974
 975   return success;
 976 }
 977
 978 /**
 979  * gtk_rc_property_parse_enum:
 980  * @pspec: a #GParamSpec
 981  * @gstring: the #GString to be parsed
 982  * @property_value: a #GValue which must hold enum values.
 983  *
 984  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
 985  * or gtk_widget_class_install_style_property_parser() which parses a single
 986  * enumeration value.
 987  *
 988  * The enumeration value can be specified by its name, its nickname or
 989  * its numeric value. For consistency with flags parsing, the value
 990  * may be surrounded by parentheses.
 991  *
 992  * Return value: %TRUE if @gstring could be parsed and @property_value
 993  * has been set to the resulting #GEnumValue.
 994  **/
 995 gboolean
 996 gtk_rc_property_parse_enum (const GParamSpec *pspec,
 997                             const GString    *gstring,
 998                             GValue           *property_value)
 999 {
1000   gboolean need_closing_brace = FALSE, success = FALSE;
1001   GScanner *scanner;
1002   GEnumValue *enum_value = NULL;
1003
1004   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1005   g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
1006
1007   scanner = gtk_rc_scanner_new ();
1008   g_scanner_input_text (scanner, gstring->str, gstring->len);
1009
1010   /* we just want to parse _one_ value, but for consistency with flags parsing
1011    * we support optional parenthesis
1012    */
1013   g_scanner_get_next_token (scanner);
1014   if (scanner->token == '(')
1015     {
1016       need_closing_brace = TRUE;
1017       g_scanner_get_next_token (scanner);
1018     }
1019   if (scanner->token == G_TOKEN_IDENTIFIER)
1020     {
1021       GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
1022
1023       enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
1024       if (!enum_value)
1025         enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
1026       if (enum_value)
1027         {
1028           g_value_set_enum (property_value, enum_value->value);
1029           success = TRUE;
1030         }
1031     }
1032   else if (scanner->token == G_TOKEN_INT)
1033     {
1034       g_value_set_enum (property_value, scanner->value.v_int);
1035       success = TRUE;
1036     }
1037   if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
1038     success = FALSE;
1039   if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
1040     success = FALSE;
1041
1042   g_scanner_destroy (scanner);
1043
1044   return success;
1045 }
1046
1047 static guint
1048 parse_flags_value (GScanner    *scanner,
1049                    GFlagsClass *class,
1050                    guint       *number)
1051 {
1052   g_scanner_get_next_token (scanner);
1053   if (scanner->token == G_TOKEN_IDENTIFIER)
1054     {
1055       GFlagsValue *flags_value;
1056
1057       flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
1058       if (!flags_value)
1059         flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
1060       if (flags_value)
1061         {
1062           *number |= flags_value->value;
1063           return G_TOKEN_NONE;
1064         }
1065     }
1066   else if (scanner->token == G_TOKEN_INT)
1067     {
1068       *number |= scanner->value.v_int;
1069       return G_TOKEN_NONE;
1070     }
1071   return G_TOKEN_IDENTIFIER;
1072 }
1073
1074 /**
1075  * gtk_rc_property_parse_flags:
1076  * @pspec: a #GParamSpec
1077  * @gstring: the #GString to be parsed
1078  * @property_value: a #GValue which must hold flags values.
1079  *
1080  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1081  * or gtk_widget_class_install_style_property_parser() which parses flags.
1082  *
1083  * Flags can be specified by their name, their nickname or
1084  * numerically. Multiple flags can be specified in the form
1085  * <literal>"( flag1 | flag2 | ... )"</literal>.
1086  *
1087  * Return value: %TRUE if @gstring could be parsed and @property_value
1088  * has been set to the resulting flags value.
1089  **/
1090 gboolean
1091 gtk_rc_property_parse_flags (const GParamSpec *pspec,
1092                              const GString    *gstring,
1093                              GValue           *property_value)
1094 {
1095   GFlagsClass *class;
1096    gboolean success = FALSE;
1097   GScanner *scanner;
1098
1099   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1100   g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
1101
1102   class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
1103   scanner = gtk_rc_scanner_new ();
1104   g_scanner_input_text (scanner, gstring->str, gstring->len);
1105
1106   /* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
1107   if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
1108       scanner->next_token == G_TOKEN_INT)
1109     {
1110       guint token, flags_value = 0;
1111
1112       token = parse_flags_value (scanner, class, &flags_value);
1113
1114       if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1115         {
1116           success = TRUE;
1117           g_value_set_flags (property_value, flags_value);
1118         }
1119
1120     }
1121   else if (g_scanner_get_next_token (scanner) == '(')
1122     {
1123       guint token, flags_value = 0;
1124
1125       /* parse first value */
1126       token = parse_flags_value (scanner, class, &flags_value);
1127
1128       /* parse nth values, preceeded by '|' */
1129       while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
1130         token = parse_flags_value (scanner, class, &flags_value);
1131
1132       /* done, last token must have closed expression */
1133       if (token == G_TOKEN_NONE && scanner->token == ')' &&
1134           g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1135         {
1136           g_value_set_flags (property_value, flags_value);
1137           success = TRUE;
1138         }
1139     }
1140   g_scanner_destroy (scanner);
1141
1142   return success;
1143 }
1144
1145 static gboolean
1146 get_braced_int (GScanner *scanner,
1147                 gboolean  first,
1148                 gboolean  last,
1149                 gint     *value)
1150 {
1151   if (first)
1152     {
1153       g_scanner_get_next_token (scanner);
1154       if (scanner->token != '{')
1155         return FALSE;
1156     }
1157
1158   g_scanner_get_next_token (scanner);
1159   if (scanner->token != G_TOKEN_INT)
1160     return FALSE;
1161
1162   *value = scanner->value.v_int;
1163
1164   if (last)
1165     {
1166       g_scanner_get_next_token (scanner);
1167       if (scanner->token != '}')
1168         return FALSE;
1169     }
1170   else
1171     {
1172       g_scanner_get_next_token (scanner);
1173       if (scanner->token != ',')
1174         return FALSE;
1175     }
1176
1177   return TRUE;
1178 }
1179
1180 /**
1181  * gtk_rc_property_parse_requisition:
1182  * @pspec: a #GParamSpec
1183  * @gstring: the #GString to be parsed
1184  * @property_value: a #GValue which must hold boxed values.
1185  *
1186  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1187  * or gtk_widget_class_install_style_property_parser() which parses a
1188  * requisition in the form
1189  * <literal>"{ width, height }"</literal> for integers %width and %height.
1190  *
1191  * Return value: %TRUE if @gstring could be parsed and @property_value
1192  * has been set to the resulting #GtkRequisition.
1193  **/
1194 gboolean
1195 gtk_rc_property_parse_requisition  (const GParamSpec *pspec,
1196                                     const GString    *gstring,
1197                                     GValue           *property_value)
1198 {
1199   GtkRequisition requisition;
1200   GScanner *scanner;
1201   gboolean success = FALSE;
1202
1203   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1204   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1205
1206   scanner = gtk_rc_scanner_new ();
1207   g_scanner_input_text (scanner, gstring->str, gstring->len);
1208
1209   if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
1210       get_braced_int (scanner, FALSE, TRUE, &requisition.height))
1211     {
1212       g_value_set_boxed (property_value, &requisition);
1213       success = TRUE;
1214     }
1215
1216   g_scanner_destroy (scanner);
1217
1218   return success;
1219 }
1220
1221 /**
1222  * gtk_rc_property_parse_border:
1223  * @pspec: a #GParamSpec
1224  * @gstring: the #GString to be parsed
1225  * @property_value: a #GValue which must hold boxed values.
1226  *
1227  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1228  * or gtk_widget_class_install_style_property_parser() which parses
1229  * borders in the form
1230  * <literal>"{ left, right, top, bottom }"</literal> for integers
1231  * %left, %right, %top and %bottom.
1232  *
1233  * Return value: %TRUE if @gstring could be parsed and @property_value
1234  * has been set to the resulting #GtkBorder.
1235  **/
1236 gboolean
1237 gtk_rc_property_parse_border (const GParamSpec *pspec,
1238                               const GString    *gstring,
1239                               GValue           *property_value)
1240 {
1241   GtkBorder border;
1242   GScanner *scanner;
1243   gboolean success = FALSE;
1244
1245   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1246   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1247
1248   scanner = gtk_rc_scanner_new ();
1249   g_scanner_input_text (scanner, gstring->str, gstring->len);
1250
1251   if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
1252       get_braced_int (scanner, FALSE, FALSE, &border.right) &&
1253       get_braced_int (scanner, FALSE, FALSE, &border.top) &&
1254       get_braced_int (scanner, FALSE, TRUE, &border.bottom))
1255     {
1256       g_value_set_boxed (property_value, &border);
1257       success = TRUE;
1258     }
1259
1260   g_scanner_destroy (scanner);
1261
1262   return success;
1263 }
1264
1265 void
1266 _gtk_settings_handle_event (GdkEventSetting *event)
1267 {
1268   GtkSettings *settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
1269
1270   if (g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name))
1271     g_object_notify (G_OBJECT (settings), event->name);
1272 }
1273
1274 static void
1275 reset_rc_values_foreach (GQuark    key_id,
1276                          gpointer  data,
1277                          gpointer  user_data)
1278 {
1279   GtkSettingsValuePrivate *qvalue = data;
1280   GSList **to_reset = user_data;
1281
1282   if (qvalue->source == GTK_SETTINGS_SOURCE_RC_FILE)
1283     *to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
1284 }
1285
1286 void
1287 _gtk_settings_reset_rc_values (GtkSettings *settings)
1288 {
1289   GSList *to_reset = NULL;
1290   GSList *tmp_list;
1291   GParamSpec **pspecs, **p;
1292   gint i;
1293
1294   /* Remove any queued settings
1295    */
1296   g_datalist_foreach (&settings->queued_settings,
1297                       reset_rc_values_foreach,
1298                       &to_reset);
1299
1300   for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
1301     {
1302       GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
1303       g_datalist_id_remove_data (&settings->queued_settings, key_id);
1304     }
1305
1306   /* Now reset the active settings
1307    */
1308   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
1309   i = 0;
1310
1311   g_object_freeze_notify (G_OBJECT (settings));
1312   for (p = pspecs; *p; p++)
1313     {
1314       if (settings->property_values[i].source == GTK_SETTINGS_SOURCE_RC_FILE)
1315         {
1316           GParamSpec *pspec = *p;
1317
1318           g_param_value_set_default (pspec, &settings->property_values[i].value);
1319           g_object_notify (G_OBJECT (settings), pspec->name);
1320         }
1321       i++;
1322     }
1323   g_object_thaw_notify (G_OBJECT (settings));
1324   g_free (pspecs);
1325 }
1326
1327 static void
1328 settings_update_double_click (GtkSettings *settings)
1329 {
1330   if (gdk_screen_get_number (settings->screen) == 0)
1331     {
1332       GdkDisplay *display = gdk_screen_get_display (settings->screen);
1333       gint double_click_time;
1334       gint double_click_distance;
1335
1336       g_object_get (settings,
1337                     "gtk-double-click-time", &double_click_time,
1338                     "gtk-double-click-distance", &double_click_distance,
1339                     NULL);
1340
1341       gdk_display_set_double_click_time (display, double_click_time);
1342       gdk_display_set_double_click_distance (display, double_click_distance);
1343     }
1344 }
1345
1346 static void
1347 settings_update_modules (GtkSettings *settings)
1348 {
1349   gchar *modules;
1350
1351   g_object_get (settings,
1352                 "gtk-modules", &modules,
1353                 NULL);
1354
1355   _gtk_modules_settings_changed (settings, modules);
1356
1357   g_free (modules);
1358 }
1359
1360 #ifdef GDK_WINDOWING_X11
1361 static void
1362 settings_update_cursor_theme (GtkSettings *settings)
1363 {
1364   GdkDisplay *display = gdk_screen_get_display (settings->screen);
1365   gchar *theme = NULL;
1366   gint size = 0;
1367
1368   g_object_get (settings,
1369                 "gtk-cursor-theme-name", &theme,
1370                 "gtk-cursor-theme-size", &size,
1371                 NULL);
1372
1373   gdk_x11_display_set_cursor_theme (display, theme, size);
1374
1375   g_free (theme);
1376 }
1377
1378 static void
1379 settings_update_font_options (GtkSettings *settings)
1380 {
1381   gint hinting;
1382   gchar *hint_style_str;
1383   cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_DEFAULT;
1384   gint antialias;
1385   cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_DEFAULT;
1386   gchar *rgba_str;
1387   cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
1388   gint dpi_int;
1389   double dpi;
1390   cairo_font_options_t *options;
1391
1392   g_object_get (settings,
1393                 "gtk-xft-antialias", &antialias,
1394                 "gtk-xft-hinting", &hinting,
1395                 "gtk-xft-hintstyle", &hint_style_str,
1396                 "gtk-xft-rgba", &rgba_str,
1397                 "gtk-xft-dpi", &dpi_int,
1398                 NULL);
1399
1400   if (dpi_int > 0)
1401     dpi = dpi_int / 1024.;
1402   else
1403     dpi = -1.;
1404
1405   options = cairo_font_options_create ();
1406
1407   if (hinting >= 0 && !hinting)
1408     {
1409       hint_style = CAIRO_HINT_STYLE_NONE;
1410     }
1411   else if (hint_style_str)
1412     {
1413       if (strcmp (hint_style_str, "hintnone") == 0)
1414         hint_style = CAIRO_HINT_STYLE_NONE;
1415       else if (strcmp (hint_style_str, "hintslight") == 0)
1416         hint_style = CAIRO_HINT_STYLE_SLIGHT;
1417       else if (strcmp (hint_style_str, "hintmedium") == 0)
1418         hint_style = CAIRO_HINT_STYLE_MEDIUM;
1419       else if (strcmp (hint_style_str, "hintfull") == 0)
1420         hint_style = CAIRO_HINT_STYLE_FULL;
1421     }
1422
1423   if (hint_style_str)
1424     g_free (hint_style_str);
1425
1426   cairo_font_options_set_hint_style (options, hint_style);
1427
1428   if (rgba_str)
1429     {
1430       if (strcmp (rgba_str, "rgb") == 0)
1431         subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
1432       else if (strcmp (rgba_str, "bgr") == 0)
1433         subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
1434       else if (strcmp (rgba_str, "vrgb") == 0)
1435         subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
1436       else if (strcmp (rgba_str, "vbgr") == 0)
1437         subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
1438
1439       g_free (rgba_str);
1440     }
1441
1442   cairo_font_options_set_subpixel_order (options, subpixel_order);
1443
1444   if (antialias >= 0 && !antialias)
1445     antialias_mode = CAIRO_ANTIALIAS_NONE;
1446   else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
1447     antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
1448   else if (antialias >= 0)
1449     antialias_mode = CAIRO_ANTIALIAS_GRAY;
1450
1451   cairo_font_options_set_antialias (options, antialias_mode);
1452
1453   gdk_screen_set_font_options (settings->screen, options);
1454
1455   cairo_font_options_destroy (options);
1456 }
1457
1458 static void
1459 settings_update_resolution (GtkSettings *settings)
1460 {
1461   gint dpi_int;
1462   double dpi;
1463
1464   g_object_get (settings,
1465                 "gtk-xft-dpi", &dpi_int,
1466                 NULL);
1467
1468   if (dpi_int > 0)
1469     dpi = dpi_int / 1024.;
1470   else
1471     dpi = -1.;
1472
1473   gdk_screen_set_resolution (settings->screen, dpi);
1474 }
1475 #endif
1476
1477 #define __GTK_SETTINGS_C__
1478 #include "gtkaliasdef.c"