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 #define PANGO_ENABLE_BACKEND /* for pango_fc_font_map_cache_clear() */
  20
  21 #include "config.h"
  22
  23 #include <string.h>
  24
  25 #include "gtkmodules.h"
  26 #include "gtksettings.h"
  27 #include "gtkrc.h"
  28 #include "gtkintl.h"
  29 #include "gtkwidget.h"
  30 #include "gtkprivate.h"
  31 #include "gtkalias.h"
  32
  33 #ifdef GDK_WINDOWING_X11
  34 #include "x11/gdkx.h"
  35 #include <pango/pangofc-fontmap.h>
  36 #endif
  37
  38 #ifdef GDK_WINDOWING_QUARTZ
  39 #define DEFAULT_KEY_THEME "Mac"
  40 #else
  41 #define DEFAULT_KEY_THEME NULL
  42 #endif
  43
  44 #define DEFAULT_TIMEOUT_INITIAL 200
  45 #define DEFAULT_TIMEOUT_REPEAT   20
  46 #define DEFAULT_TIMEOUT_EXPAND  500
  47
  48 typedef struct _GtkSettingsValuePrivate GtkSettingsValuePrivate;
  49
  50 typedef enum
  51 {
  52   GTK_SETTINGS_SOURCE_DEFAULT,
  53   GTK_SETTINGS_SOURCE_RC_FILE,
  54   GTK_SETTINGS_SOURCE_XSETTING,
  55   GTK_SETTINGS_SOURCE_APPLICATION
  56 } GtkSettingsSource;
  57
  58 struct _GtkSettingsValuePrivate
  59 {
  60   GtkSettingsValue public;
  61   GtkSettingsSource source;
  62 };
  63
  64 struct _GtkSettingsPropertyValue
  65 {
  66   GValue value;
  67   GtkSettingsSource source;
  68 };
  69
  70 enum {
  71   PROP_0,
  72   PROP_DOUBLE_CLICK_TIME,
  73   PROP_DOUBLE_CLICK_DISTANCE,
  74   PROP_CURSOR_BLINK,
  75   PROP_CURSOR_BLINK_TIME,
  76   PROP_CURSOR_BLINK_TIMEOUT,
  77   PROP_SPLIT_CURSOR,
  78   PROP_THEME_NAME,
  79   PROP_ICON_THEME_NAME,
  80   PROP_FALLBACK_ICON_THEME,
  81   PROP_KEY_THEME_NAME,
  82   PROP_MENU_BAR_ACCEL,
  83   PROP_DND_DRAG_THRESHOLD,
  84   PROP_FONT_NAME,
  85   PROP_ICON_SIZES,
  86   PROP_MODULES,
  87 #ifdef GDK_WINDOWING_X11
  88   PROP_XFT_ANTIALIAS,
  89   PROP_XFT_HINTING,
  90   PROP_XFT_HINTSTYLE,
  91   PROP_XFT_RGBA,
  92   PROP_XFT_DPI,
  93   PROP_CURSOR_THEME_NAME,
  94   PROP_CURSOR_THEME_SIZE,
  95 #endif
  96   PROP_ALTERNATIVE_BUTTON_ORDER,
  97   PROP_ALTERNATIVE_SORT_ARROWS,
  98   PROP_SHOW_INPUT_METHOD_MENU,
  99   PROP_SHOW_UNICODE_MENU,
 100   PROP_TIMEOUT_INITIAL,
 101   PROP_TIMEOUT_REPEAT,
 102   PROP_TIMEOUT_EXPAND,
 103   PROP_COLOR_SCHEME,
 104   PROP_ENABLE_ANIMATIONS,
 105   PROP_TOUCHSCREEN_MODE,
 106   PROP_TOOLTIP_TIMEOUT,
 107   PROP_TOOLTIP_BROWSE_TIMEOUT,
 108   PROP_TOOLTIP_BROWSE_MODE_TIMEOUT,
 109   PROP_KEYNAV_CURSOR_ONLY,
 110   PROP_KEYNAV_WRAP_AROUND,
 111   PROP_ERROR_BELL,
 112   PROP_COLOR_HASH,
 113   PROP_FILE_CHOOSER_BACKEND,
 114   PROP_PRINT_BACKENDS,
 115   PROP_PRINT_PREVIEW_COMMAND,
 116   PROP_ENABLE_MNEMONICS,
 117   PROP_ENABLE_ACCELS,
 118   PROP_RECENT_FILES_LIMIT,
 119   PROP_IM_MODULE,
 120   PROP_RECENT_FILES_MAX_AGE,
 121   PROP_FONTCONFIG_TIMESTAMP,
 122   PROP_SOUND_THEME_NAME,
 123   PROP_ENABLE_INPUT_FEEDBACK_SOUNDS,
 124   PROP_ENABLE_EVENT_SOUNDS,
 125   PROP_ENABLE_TOOLTIPS,
 126   PROP_TOOLBAR_STYLE,
 127   PROP_TOOLBAR_ICON_SIZE
 128 };
 129
 130
 131 /* --- prototypes --- */
 132 static void     gtk_settings_finalize            (GObject               *object);
 133 static void     gtk_settings_get_property        (GObject               *object,
 134                                                   guint                  property_id,
 135                                                   GValue                *value,
 136                                                   GParamSpec            *pspec);
 137 static void     gtk_settings_set_property        (GObject               *object,
 138                                                   guint                  property_id,
 139                                                   const GValue          *value,
 140                                                   GParamSpec            *pspec);
 141 static void     gtk_settings_notify              (GObject               *object,
 142                                                   GParamSpec            *pspec);
 143 static guint    settings_install_property_parser (GtkSettingsClass      *class,
 144                                                   GParamSpec            *pspec,
 145                                                   GtkRcPropertyParser    parser);
 146 static void    settings_update_double_click      (GtkSettings           *settings);
 147 static void    settings_update_modules           (GtkSettings           *settings);
 148
 149 #ifdef GDK_WINDOWING_X11
 150 static void    settings_update_cursor_theme      (GtkSettings           *settings);
 151 static void    settings_update_resolution        (GtkSettings           *settings);
 152 static void    settings_update_font_options      (GtkSettings           *settings);
 153 static gboolean settings_update_fontconfig       (GtkSettings           *settings);
 154 #endif
 155 static void    settings_update_color_scheme      (GtkSettings *settings);
 156
 157 static void    merge_color_scheme                (GtkSettings           *settings,
 158                                                   const GValue          *value,
 159                                                   GtkSettingsSource      source);
 160 static gchar  *get_color_scheme                  (GtkSettings           *settings);
 161 static GHashTable *get_color_hash                (GtkSettings           *settings);
 162
 163
 164 /* --- variables --- */
 165 static GQuark            quark_property_parser = 0;
 166 static GSList           *object_list = NULL;
 167 static guint             class_n_properties = 0;
 168
 169
 170 G_DEFINE_TYPE (GtkSettings, gtk_settings, G_TYPE_OBJECT)
 171
 172 /* --- functions --- */
 173 static void
 174 gtk_settings_init (GtkSettings *settings)
 175 {
 176   GParamSpec **pspecs, **p;
 177   guint i = 0;
 178
 179   g_datalist_init (&settings->queued_settings);
 180   object_list = g_slist_prepend (object_list, settings);
 181
 182   /* build up property array for all yet existing properties and queue
 183    * notification for them (at least notification for internal properties
 184    * will instantly be caught)
 185    */
 186   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
 187   for (p = pspecs; *p; p++)
 188     if ((*p)->owner_type == G_OBJECT_TYPE (settings))
 189       i++;
 190   settings->property_values = g_new0 (GtkSettingsPropertyValue, i);
 191   i = 0;
 192   g_object_freeze_notify (G_OBJECT (settings));
 193   for (p = pspecs; *p; p++)
 194     {
 195       GParamSpec *pspec = *p;
 196
 197       if (pspec->owner_type != G_OBJECT_TYPE (settings))
 198         continue;
 199       g_value_init (&settings->property_values[i].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 200       g_param_value_set_default (pspec, &settings->property_values[i].value);
 201       g_object_notify (G_OBJECT (settings), pspec->name);
 202       settings->property_values[i].source = GTK_SETTINGS_SOURCE_DEFAULT;
 203       i++;
 204     }
 205   g_object_thaw_notify (G_OBJECT (settings));
 206   g_free (pspecs);
 207 }
 208
 209 static void
 210 gtk_settings_class_init (GtkSettingsClass *class)
 211 {
 212   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 213   guint result;
 214
 215   gobject_class->finalize = gtk_settings_finalize;
 216   gobject_class->get_property = gtk_settings_get_property;
 217   gobject_class->set_property = gtk_settings_set_property;
 218   gobject_class->notify = gtk_settings_notify;
 219
 220   quark_property_parser = g_quark_from_static_string ("gtk-rc-property-parser");
 221   result = settings_install_property_parser (class,
 222                                              g_param_spec_int ("gtk-double-click-time",
 223                                                                P_("Double Click Time"),
 224                                                                P_("Maximum time allowed between two clicks for them to be considered a double click (in milliseconds)"),
 225                                                                0, G_MAXINT, 250,
 226                                                                GTK_PARAM_READWRITE),
 227                                              NULL);
 228   g_assert (result == PROP_DOUBLE_CLICK_TIME);
 229   result = settings_install_property_parser (class,
 230                                              g_param_spec_int ("gtk-double-click-distance",
 231                                                                P_("Double Click Distance"),
 232                                                                P_("Maximum distance allowed between two clicks for them to be considered a double click (in pixels)"),
 233                                                                0, G_MAXINT, 5,
 234                                                                GTK_PARAM_READWRITE),
 235                                              NULL);
 236   g_assert (result == PROP_DOUBLE_CLICK_DISTANCE);
 237
 238   /**
 239    * GtkSettings:gtk-cursor-blink:
 240    *
 241    * Whether the cursor should blink.
 242    *
 243    * Also see the #GtkSettings:gtk-cursor-blink-timeout setting,
 244    * which allows more flexible control over cursor blinking.
 245    */
 246   result = settings_install_property_parser (class,
 247                                              g_param_spec_boolean ("gtk-cursor-blink",
 248                                                                    P_("Cursor Blink"),
 249                                                                    P_("Whether the cursor should blink"),
 250                                                                    TRUE,
 251                                                                    GTK_PARAM_READWRITE),
 252                                              NULL);
 253   g_assert (result == PROP_CURSOR_BLINK);
 254   result = settings_install_property_parser (class,
 255                                              g_param_spec_int ("gtk-cursor-blink-time",
 256                                                                P_("Cursor Blink Time"),
 257                                                                P_("Length of the cursor blink cycle, in milliseconds"),
 258                                                                100, G_MAXINT, 1200,
 259                                                                GTK_PARAM_READWRITE),
 260                                              NULL);
 261   g_assert (result == PROP_CURSOR_BLINK_TIME);
 262
 263   /**
 264    * GtkSettings:gtk-cursor-blink-timeout:
 265    *
 266    * Time after which the cursor stops blinking, in seconds.
 267    * The timer is reset after each user interaction.
 268    *
 269    * Setting this to zero has the same effect as setting
 270    * #GtkSettings:gtk-cursor-blink to %FALSE.
 271    *
 272    * Since: 2.12
 273    */
 274   result = settings_install_property_parser (class,
 275                                              g_param_spec_int ("gtk-cursor-blink-timeout",
 276                                                                P_("Cursor Blink Timeout"),
 277                                                                P_("Time after which the cursor stops blinking, in seconds"),
 278                                                                1, G_MAXINT, G_MAXINT,
 279                                                                GTK_PARAM_READWRITE),
 280                                              NULL);
 281   g_assert (result == PROP_CURSOR_BLINK_TIMEOUT);
 282   result = settings_install_property_parser (class,
 283                                              g_param_spec_boolean ("gtk-split-cursor",
 284                                                                    P_("Split Cursor"),
 285                                                                    P_("Whether two cursors should be displayed for mixed left-to-right and right-to-left text"),
 286                                                                    TRUE,
 287                                                                    GTK_PARAM_READWRITE),
 288                                              NULL);
 289   g_assert (result == PROP_SPLIT_CURSOR);
 290   result = settings_install_property_parser (class,
 291                                              g_param_spec_string ("gtk-theme-name",
 292                                                                    P_("Theme Name"),
 293                                                                    P_("Name of theme RC file to load"),
 294                                                                   "Raleigh",
 295                                                                   GTK_PARAM_READWRITE),
 296                                              NULL);
 297   g_assert (result == PROP_THEME_NAME);
 298
 299   result = settings_install_property_parser (class,
 300                                              g_param_spec_string ("gtk-icon-theme-name",
 301                                                                   P_("Icon Theme Name"),
 302                                                                   P_("Name of icon theme to use"),
 303                                                                   "hicolor",
 304                                                                   GTK_PARAM_READWRITE),
 305                                              NULL);
 306   g_assert (result == PROP_ICON_THEME_NAME);
 307
 308   result = settings_install_property_parser (class,
 309                                              g_param_spec_string ("gtk-fallback-icon-theme",
 310                                                                   P_("Fallback Icon Theme Name"),
 311                                                                   P_("Name of a icon theme to fall back to"),
 312                                                                   NULL,
 313                                                                   GTK_PARAM_READWRITE),
 314                                              NULL);
 315   g_assert (result == PROP_FALLBACK_ICON_THEME);
 316
 317   result = settings_install_property_parser (class,
 318                                              g_param_spec_string ("gtk-key-theme-name",
 319                                                                   P_("Key Theme Name"),
 320                                                                   P_("Name of key theme RC file to load"),
 321                                                                   DEFAULT_KEY_THEME,
 322                                                                   GTK_PARAM_READWRITE),
 323                                              NULL);
 324   g_assert (result == PROP_KEY_THEME_NAME);
 325
 326   result = settings_install_property_parser (class,
 327                                              g_param_spec_string ("gtk-menu-bar-accel",
 328                                                                   P_("Menu bar accelerator"),
 329                                                                   P_("Keybinding to activate the menu bar"),
 330                                                                   "F10",
 331                                                                   GTK_PARAM_READWRITE),
 332                                              NULL);
 333   g_assert (result == PROP_MENU_BAR_ACCEL);
 334
 335   result = settings_install_property_parser (class,
 336                                              g_param_spec_int ("gtk-dnd-drag-threshold",
 337                                                                P_("Drag threshold"),
 338                                                                P_("Number of pixels the cursor can move before dragging"),
 339                                                                1, G_MAXINT, 8,
 340                                                                GTK_PARAM_READWRITE),
 341                                              NULL);
 342   g_assert (result == PROP_DND_DRAG_THRESHOLD);
 343
 344   result = settings_install_property_parser (class,
 345                                              g_param_spec_string ("gtk-font-name",
 346                                                                    P_("Font Name"),
 347                                                                    P_("Name of default font to use"),
 348                                                                   "Sans 10",
 349                                                                   GTK_PARAM_READWRITE),
 350                                              NULL);
 351   g_assert (result == PROP_FONT_NAME);
 352
 353   /**
 354    * GtkSettings:gtk-icon-sizes:
 355    *
 356    * A list of icon sizes. The list is separated by colons, and
 357    * item has the form:
 358    *
 359    * <replaceable>size-name</replaceable> = <replaceable>width</replaceable> , <replaceable>height</replaceable>
 360    *
 361    * E.g. "gtk-menu=16,16:gtk-button=20,20:gtk-dialog=48,48".
 362    * GTK+ itself use the following named icon sizes: gtk-menu,
 363    * gtk-button, gtk-small-toolbar, gtk-large-toolbar, gtk-dnd,
 364    * gtk-dialog. Applications can register their own named icon
 365    * sizes with gtk_icon_size_register().
 366    */
 367   result = settings_install_property_parser (class,
 368                                              g_param_spec_string ("gtk-icon-sizes",
 369                                                                    P_("Icon Sizes"),
 370                                                                    P_("List of icon sizes (gtk-menu=16,16:gtk-button=20,20..."),
 371                                                                   NULL,
 372                                                                   GTK_PARAM_READWRITE),
 373                                              NULL);
 374   g_assert (result == PROP_ICON_SIZES);
 375
 376   result = settings_install_property_parser (class,
 377                                              g_param_spec_string ("gtk-modules",
 378                                                                   P_("GTK Modules"),
 379                                                                   P_("List of currently active GTK modules"),
 380                                                                   NULL,
 381                                                                   GTK_PARAM_READWRITE),
 382                                              NULL);
 383   g_assert (result == PROP_MODULES);
 384
 385 #ifdef GDK_WINDOWING_X11
 386   result = settings_install_property_parser (class,
 387                                              g_param_spec_int ("gtk-xft-antialias",
 388                                                                P_("Xft Antialias"),
 389                                                                P_("Whether to antialias Xft fonts; 0=no, 1=yes, -1=default"),
 390                                                                -1, 1, -1,
 391                                                                GTK_PARAM_READWRITE),
 392                                              NULL);
 393
 394   g_assert (result == PROP_XFT_ANTIALIAS);
 395
 396   result = settings_install_property_parser (class,
 397                                              g_param_spec_int ("gtk-xft-hinting",
 398                                                                P_("Xft Hinting"),
 399                                                                P_("Whether to hint Xft fonts; 0=no, 1=yes, -1=default"),
 400                                                                -1, 1, -1,
 401                                                                GTK_PARAM_READWRITE),
 402                                              NULL);
 403
 404   g_assert (result == PROP_XFT_HINTING);
 405
 406   result = settings_install_property_parser (class,
 407                                              g_param_spec_string ("gtk-xft-hintstyle",
 408                                                                   P_("Xft Hint Style"),
 409                                                                   P_("What degree of hinting to use; hintnone, hintslight, hintmedium, or hintfull"),
 410                                                                   NULL,
 411                                                                   GTK_PARAM_READWRITE),
 412                                               NULL);
 413
 414   g_assert (result == PROP_XFT_HINTSTYLE);
 415
 416   result = settings_install_property_parser (class,
 417                                              g_param_spec_string ("gtk-xft-rgba",
 418                                                                   P_("Xft RGBA"),
 419                                                                   P_("Type of subpixel antialiasing; none, rgb, bgr, vrgb, vbgr"),
 420                                                                   NULL,
 421                                                                   GTK_PARAM_READWRITE),
 422                                              NULL);
 423
 424   g_assert (result == PROP_XFT_RGBA);
 425
 426   result = settings_install_property_parser (class,
 427                                              g_param_spec_int ("gtk-xft-dpi",
 428                                                                P_("Xft DPI"),
 429                                                                P_("Resolution for Xft, in 1024 * dots/inch. -1 to use default value"),
 430                                                                -1, 1024*1024, -1,
 431                                                                GTK_PARAM_READWRITE),
 432                                              NULL);
 433
 434   g_assert (result == PROP_XFT_DPI);
 435
 436   result = settings_install_property_parser (class,
 437                                              g_param_spec_string ("gtk-cursor-theme-name",
 438                                                                   P_("Cursor theme name"),
 439                                                                   P_("Name of the cursor theme to use, or NULL to use the default theme"),
 440                                                                   NULL,
 441                                                                   GTK_PARAM_READWRITE),
 442                                              NULL);
 443   g_assert (result == PROP_CURSOR_THEME_NAME);
 444
 445   result = settings_install_property_parser (class,
 446                                              g_param_spec_int ("gtk-cursor-theme-size",
 447                                                                P_("Cursor theme size"),
 448                                                                P_("Size to use for cursors, or 0 to use the default size"),
 449                                                                0, 128, 0,
 450                                                                GTK_PARAM_READWRITE),
 451                                              NULL);
 452
 453   g_assert (result == PROP_CURSOR_THEME_SIZE);
 454
 455 #endif  /* GDK_WINDOWING_X11 */
 456   result = settings_install_property_parser (class,
 457                                              g_param_spec_boolean ("gtk-alternative-button-order",
 458                                                                    P_("Alternative button order"),
 459                                                                    P_("Whether buttons in dialogs should use the alternative button order"),
 460                                                                    FALSE,
 461                                                                    GTK_PARAM_READWRITE),
 462                                              NULL);
 463   g_assert (result == PROP_ALTERNATIVE_BUTTON_ORDER);
 464
 465   /**
 466    * GtkSettings:gtk-alternative-sort-arrows:
 467    *
 468    * Controls the direction of the sort indicators in sorted list and tree
 469    * views. By default an arrow pointing down means the column is sorted
 470    * in ascending order. When set to %TRUE, this order will be inverted.
 471    *
 472    * Since: 2.12
 473    */
 474   result = settings_install_property_parser (class,
 475                                              g_param_spec_boolean ("gtk-alternative-sort-arrows",
 476                                                                    P_("Alternative sort indicator direction"),
 477                                                                    P_("Whether the direction of the sort indicators in list and tree views is inverted compared to the default (where down means ascending)"),
 478                                                                    FALSE,
 479                                                                    GTK_PARAM_READWRITE),
 480                                              NULL);
 481   g_assert (result == PROP_ALTERNATIVE_SORT_ARROWS);
 482
 483   result = settings_install_property_parser (class,
 484                                              g_param_spec_boolean ("gtk-show-input-method-menu",
 485                                                                    P_("Show the 'Input Methods' menu"),
 486                                                                    P_("Whether the context menus of entries and text views should offer to change the input method"),
 487                                                                    TRUE,
 488                                                                    GTK_PARAM_READWRITE),
 489                                              NULL);
 490   g_assert (result == PROP_SHOW_INPUT_METHOD_MENU);
 491
 492   result = settings_install_property_parser (class,
 493                                              g_param_spec_boolean ("gtk-show-unicode-menu",
 494                                                                    P_("Show the 'Insert Unicode Control Character' menu"),
 495                                                                    P_("Whether the context menus of entries and text views should offer to insert control characters"),
 496                                                                    TRUE,
 497                                                                    GTK_PARAM_READWRITE),
 498                                              NULL);
 499   g_assert (result == PROP_SHOW_UNICODE_MENU);
 500
 501   result = settings_install_property_parser (class,
 502                                              g_param_spec_int ("gtk-timeout-initial",
 503                                                                P_("Start timeout"),
 504                                                                P_("Starting value for timeouts, when button is pressed"),
 505                                                                0, G_MAXINT, DEFAULT_TIMEOUT_INITIAL,
 506                                                                GTK_PARAM_READWRITE),
 507                                              NULL);
 508
 509   g_assert (result == PROP_TIMEOUT_INITIAL);
 510
 511   result = settings_install_property_parser (class,
 512                                              g_param_spec_int ("gtk-timeout-repeat",
 513                                                                P_("Repeat timeout"),
 514                                                                P_("Repeat value for timeouts, when button is pressed"),
 515                                                                0, G_MAXINT, DEFAULT_TIMEOUT_REPEAT,
 516                                                                GTK_PARAM_READWRITE),
 517                                              NULL);
 518
 519   g_assert (result == PROP_TIMEOUT_REPEAT);
 520
 521   result = settings_install_property_parser (class,
 522                                              g_param_spec_int ("gtk-timeout-expand",
 523                                                                P_("Expand timeout"),
 524                                                                P_("Expand value for timeouts, when a widget is expanding a new region"),
 525                                                                0, G_MAXINT, DEFAULT_TIMEOUT_EXPAND,
 526                                                                GTK_PARAM_READWRITE),
 527                                              NULL);
 528
 529   g_assert (result == PROP_TIMEOUT_EXPAND);
 530
 531   /**
 532    * GtkSettings:gtk-color-scheme:
 533    *
 534    * A palette of named colors for use in themes. The format of the string is
 535    * <programlisting>
 536    * name1: color1
 537    * name2: color2
 538    * ...
 539    * </programlisting>
 540    * Color names must be acceptable as identifiers in the
 541    * <link linkend="gtk-Resource-Files">gtkrc</link> syntax, and
 542    * color specifications must be in the format accepted by
 543    * gdk_color_parse().
 544    *
 545    * Note that due to the way the color tables from different sources are
 546    * merged, color specifications will be converted to hexadecimal form
 547    * when getting this property.
 548    *
 549    * Starting with GTK+ 2.12, the entries can alternatively be separated
 550    * by ';' instead of newlines:
 551    * <programlisting>
 552    * name1: color1; name2: color2; ...
 553    * </programlisting>
 554    *
 555    * Since: 2.10
 556    */
 557   result = settings_install_property_parser (class,
 558                                              g_param_spec_string ("gtk-color-scheme",
 559                                                                   P_("Color scheme"),
 560                                                                   P_("A palette of named colors for use in themes"),
 561                                                                   "",
 562                                                                   GTK_PARAM_READWRITE),
 563                                              NULL);
 564
 565   g_assert (result == PROP_COLOR_SCHEME);
 566
 567   result = settings_install_property_parser (class,
 568                                              g_param_spec_boolean ("gtk-enable-animations",
 569                                                                    P_("Enable Animations"),
 570                                                                    P_("Whether to enable toolkit-wide animations."),
 571                                                                    TRUE,
 572                                                                    GTK_PARAM_READWRITE),
 573                                              NULL);
 574
 575   g_assert (result == PROP_ENABLE_ANIMATIONS);
 576
 577   /**
 578    * GtkSettings:gtk-touchscreen-mode:
 579    *
 580    * When %TRUE, there are no motion notify events delivered on this screen,
 581    * and widgets can't use the pointer hovering them for any essential
 582    * functionality.
 583    *
 584    * Since: 2.10
 585    */
 586   result = settings_install_property_parser (class,
 587                                              g_param_spec_boolean ("gtk-touchscreen-mode",
 588                                                                    P_("Enable Touchscreen Mode"),
 589                                                                    P_("When TRUE, there are no motion notify events delivered on this screen"),
 590                                                                    FALSE,
 591                                                                    GTK_PARAM_READWRITE),
 592                                              NULL);
 593
 594   g_assert (result == PROP_TOUCHSCREEN_MODE);
 595
 596   /**
 597    * GtkSettings:gtk-tooltip-timeout:
 598    *
 599    * Time, in milliseconds, after which a tooltip could appear if the
 600    * cursor is hovering on top of a widget.
 601    *
 602    * Since: 2.12
 603    */
 604   result = settings_install_property_parser (class,
 605                                              g_param_spec_int ("gtk-tooltip-timeout",
 606                                                                P_("Tooltip timeout"),
 607                                                                P_("Timeout before tooltip is shown"),
 608                                                                0, G_MAXINT,
 609                                                                500,
 610                                                                GTK_PARAM_READWRITE),
 611                                              NULL);
 612
 613   g_assert (result == PROP_TOOLTIP_TIMEOUT);
 614
 615   /**
 616    * GtkSettings:gtk-tooltip-browse-timeout:
 617    *
 618    * Controls the time after which tooltips will appear when
 619    * browse mode is enabled, in milliseconds.
 620    *
 621    * Browse mode is enabled when the mouse pointer moves off an object
 622    * where a tooltip was currently being displayed. If the mouse pointer
 623    * hits another object before the browse mode timeout expires (see
 624    * #GtkSettings:gtk-tooltip-browse-mode-timeout), it will take the
 625    * amount of milliseconds specified by this setting to popup the tooltip
 626    * for the new object.
 627    *
 628    * Since: 2.12
 629    */
 630   result = settings_install_property_parser (class,
 631                                              g_param_spec_int ("gtk-tooltip-browse-timeout",
 632                                                                P_("Tooltip browse timeout"),
 633                                                                P_("Timeout before tooltip is shown when browse mode is enabled"),
 634                                                                0, G_MAXINT,
 635                                                                60,
 636                                                                GTK_PARAM_READWRITE),
 637                                              NULL);
 638
 639   g_assert (result == PROP_TOOLTIP_BROWSE_TIMEOUT);
 640
 641   /**
 642    * GtkSettings:gtk-tooltip-browse-mode-timeout:
 643    *
 644    * Amount of time, in milliseconds, after which the browse mode
 645    * will be disabled.
 646    *
 647    * See #GtkSettings:gtk-tooltip-browse-timeout for more information
 648    * about browse mode.
 649    *
 650    * Since: 2.12
 651    */
 652   result = settings_install_property_parser (class,
 653                                              g_param_spec_int ("gtk-tooltip-browse-mode-timeout",
 654                                                                P_("Tooltip browse mode timeout"),
 655                                                                P_("Timeout after which browse mode is disabled"),
 656                                                                0, G_MAXINT,
 657                                                                500,
 658                                                                GTK_PARAM_READWRITE),
 659                                              NULL);
 660
 661   g_assert (result == PROP_TOOLTIP_BROWSE_MODE_TIMEOUT);
 662
 663   /**
 664    * GtkSettings:gtk-keynav-cursor-only:
 665    *
 666    * When %TRUE, keyboard navigation should be able to reach all widgets
 667    * by using the cursor keys only. Tab, Shift etc. keys can't be expected
 668    * to be present on the used input device.
 669    *
 670    * Since: 2.12
 671    */
 672   result = settings_install_property_parser (class,
 673                                              g_param_spec_boolean ("gtk-keynav-cursor-only",
 674                                                                    P_("Keynav Cursor Only"),
 675                                                                    P_("When TRUE, there are only cursor keys available to navigate widgets"),
 676                                                                    FALSE,
 677                                                                    GTK_PARAM_READWRITE),
 678                                              NULL);
 679
 680   g_assert (result == PROP_KEYNAV_CURSOR_ONLY);
 681
 682   /**
 683    * GtkSettings:gtk-keynav-wrap-around:
 684    *
 685    * When %TRUE, some widgets will wrap around when doing keyboard
 686    * navigation, such as menus, menubars and notebooks.
 687    *
 688    * Since: 2.12
 689    */
 690   result = settings_install_property_parser (class,
 691                                              g_param_spec_boolean ("gtk-keynav-wrap-around",
 692                                                                    P_("Keynav Wrap Around"),
 693                                                                    P_("Whether to wrap around when keyboard-navigating widgets"),
 694                                                                    TRUE,
 695                                                                    GTK_PARAM_READWRITE),
 696                                              NULL);
 697
 698   g_assert (result == PROP_KEYNAV_WRAP_AROUND);
 699
 700   /**
 701    * GtkSettings:gtk-error-bell:
 702    *
 703    * When %TRUE, keyboard navigation and other input-related errors
 704    * will cause a beep. Since the error bell is implemented using
 705    * gdk_window_beep(), the windowing system may offer ways to
 706    * configure the error bell in many ways, such as flashing the
 707    * window or similar visual effects.
 708    *
 709    * Since: 2.12
 710    */
 711   result = settings_install_property_parser (class,
 712                                              g_param_spec_boolean ("gtk-error-bell",
 713                                                                    P_("Error Bell"),
 714                                                                    P_("When TRUE, keyboard navigation and other errors will cause a beep"),
 715                                                                    TRUE,
 716                                                                    GTK_PARAM_READWRITE),
 717                                              NULL);
 718
 719   g_assert (result == PROP_ERROR_BELL);
 720
 721   /**
 722    * GtkSettings:color-hash:
 723    *
 724    * Holds a hash table representation of the #GtkSettings:gtk-color-scheme
 725    * setting, mapping color names to #GdkColor<!-- -->s.
 726    *
 727    * Since: 2.10
 728    */
 729   result = settings_install_property_parser (class,
 730                                              g_param_spec_boxed ("color-hash",
 731                                                                  P_("Color Hash"),
 732                                                                  P_("A hash table representation of the color scheme."),
 733                                                                  G_TYPE_HASH_TABLE,
 734                                                                  GTK_PARAM_READABLE),
 735                                              NULL);
 736   g_assert (result == PROP_COLOR_HASH);
 737
 738   result = settings_install_property_parser (class,
 739                                              g_param_spec_string ("gtk-file-chooser-backend",
 740                                                                   P_("Default file chooser backend"),
 741                                                                   P_("Name of the GtkFileChooser backend to use by default"),
 742                                                                   NULL,
 743                                                                   GTK_PARAM_READWRITE),
 744                                              NULL);
 745   g_assert (result == PROP_FILE_CHOOSER_BACKEND);
 746
 747   /**
 748    * GtkSettings:gtk-print-backends:
 749    *
 750    * A comma-separated list of print backends to use in the print
 751    * dialog. Available print backends depend on the GTK+ installation,
 752    * and may include "file", "cups", "lpr" or "papi".
 753    *
 754    * Since: 2.10
 755    */
 756   result = settings_install_property_parser (class,
 757                                              g_param_spec_string ("gtk-print-backends",
 758                                                                   P_("Default print backend"),
 759                                                                   P_("List of the GtkPrintBackend backends to use by default"),
 760                                                                   GTK_PRINT_BACKENDS,
 761                                                                   GTK_PARAM_READWRITE),
 762                                              NULL);
 763   g_assert (result == PROP_PRINT_BACKENDS);
 764
 765   /**
 766    * GtkSettings:gtk-print-preview-command:
 767    *
 768    * A command to run for displaying the print preview. The command
 769    * should contain a %f placeholder, which will get replaced by
 770    * the path to the pdf file. The command may also contain a %s
 771    * placeholder, which will get replaced by the path to a file
 772    * containing the print settings in the format produced by
 773    * gtk_print_settings_to_file().
 774    *
 775    * The preview application is responsible for removing the pdf file
 776    * and the print settings file when it is done.
 777    *
 778    * Since: 2.10
 779    */
 780   result = settings_install_property_parser (class,
 781                                              g_param_spec_string ("gtk-print-preview-command",
 782                                                                   P_("Default command to run when displaying a print preview"),
 783                                                                   P_("Command to run when displaying a print preview"),
 784                                                                   GTK_PRINT_PREVIEW_COMMAND,
 785                                                                   GTK_PARAM_READWRITE),
 786                                              NULL);
 787   g_assert (result == PROP_PRINT_PREVIEW_COMMAND);
 788
 789   /**
 790    * GtkSettings:gtk-enable-mnemonics:
 791    *
 792    * Whether labels and menu items should have visible mnemonics which
 793    * can be activated.
 794    *
 795    * Since: 2.12
 796    */
 797   result = settings_install_property_parser (class,
 798                                              g_param_spec_boolean ("gtk-enable-mnemonics",
 799                                                                    P_("Enable Mnemonics"),
 800                                                                    P_("Whether labels should have mnemonics"),
 801                                                                    TRUE,
 802                                                                    GTK_PARAM_READWRITE),
 803                                              NULL);
 804   g_assert (result == PROP_ENABLE_MNEMONICS);
 805
 806   /**
 807    * GtkSettings:gtk-enable-accels:
 808    *
 809    * Whether menu items should have visible accelerators which can be
 810    * activated.
 811    *
 812    * Since: 2.12
 813    */
 814   result = settings_install_property_parser (class,
 815                                              g_param_spec_boolean ("gtk-enable-accels",
 816                                                                    P_("Enable Accelerators"),
 817                                                                    P_("Whether menu items should have accelerators"),
 818                                                                    TRUE,
 819                                                                    GTK_PARAM_READWRITE),
 820                                              NULL);
 821   g_assert (result == PROP_ENABLE_ACCELS);
 822
 823   /**
 824    * GtkSettings:gtk-recent-files-limit:
 825    *
 826    * The number of recently used files that should be displayed by default by
 827    * #GtkRecentChooser implementations and by the #GtkFileChooser. A value of
 828    * -1 means every recently used file stored.
 829    *
 830    * Since: 2.12
 831    */
 832   result = settings_install_property_parser (class,
 833                                              g_param_spec_int ("gtk-recent-files-limit",
 834                                                                P_("Recent Files Limit"),
 835                                                                P_("Number of recently used files"),
 836                                                                -1, G_MAXINT,
 837                                                                50,
 838                                                                GTK_PARAM_READWRITE),
 839                                              NULL);
 840   g_assert (result == PROP_RECENT_FILES_LIMIT);
 841
 842   /**
 843    * GtkSettings:gtk-im-module:
 844    *
 845    * Which IM (input method) module should be used by default. This is the
 846    * input method that will be used if the user has not explicitly chosen
 847    * another input method from the IM context menu.
 848    *
 849    * See #GtkIMContext and see the #GtkSettings:gtk-show-input-method-menu property.
 850    */
 851   result = settings_install_property_parser (class,
 852                                              g_param_spec_string ("gtk-im-module",
 853                                                                   P_("Default IM module"),
 854                                                                   P_("Which IM module should be used by default"),
 855                                                                   NULL,
 856                                                                   GTK_PARAM_READWRITE),
 857                                              NULL);
 858   g_assert (result == PROP_IM_MODULE);
 859
 860   /**
 861    * GtkSettings:gtk-recent-files-max-age:
 862    *
 863    * The maximum age, in days, of the items inside the recently used
 864    * resources list. Items older than this setting will be excised
 865    * from the list. If set to 0, the list will always be empty; if
 866    * set to -1, no item will be removed.
 867    *
 868    * Since: 2.14
 869    */
 870   result = settings_install_property_parser (class,
 871                                              g_param_spec_int ("gtk-recent-files-max-age",
 872                                                                P_("Recent Files Max Age"),
 873                                                                P_("Maximum age of recently used files, in days"),
 874                                                                -1, G_MAXINT,
 875                                                                30,
 876                                                                GTK_PARAM_READWRITE),
 877                                              NULL);
 878   g_assert (result == PROP_RECENT_FILES_MAX_AGE);
 879
 880   result = settings_install_property_parser (class,
 881                                              g_param_spec_uint ("gtk-fontconfig-timestamp",
 882                                                                 P_("Fontconfig configuration timestamp"),
 883                                                                 P_("Timestamp of current fontconfig configuration"),
 884                                                                 0, G_MAXUINT, 0,
 885                                                                 GTK_PARAM_READWRITE),
 886                                              NULL);
 887
 888   g_assert (result == PROP_FONTCONFIG_TIMESTAMP);
 889
 890   /**
 891    * GtkSettings:gtk-sound-theme-name:
 892    *
 893    * The XDG sound theme to use for event sounds.
 894    *
 895    * See the <ulink url="http://www.freedesktop.org/wiki/Specifications/sound-theme-spec">Sound Theme spec</ulink>
 896    * for more information on event sounds and sound themes.
 897    *
 898    * GTK+ itself does not support event sounds, you have to use a loadable
 899    * module like the one that comes with libcanberra.
 900    *
 901    * Since: 2.14
 902    */
 903   result = settings_install_property_parser (class,
 904                                              g_param_spec_string ("gtk-sound-theme-name",
 905                                                                   P_("Sound Theme Name"),
 906                                                                   P_("XDG sound theme name"),
 907                                                                   "freedesktop",
 908                                                                   GTK_PARAM_READWRITE),
 909                                              NULL);
 910   g_assert (result == PROP_SOUND_THEME_NAME);
 911
 912   /**
 913    * GtkSettings:gtk-enable-input-feedback-sounds:
 914    *
 915    * Whether to play event sounds as feedback to user input.
 916    *
 917    * See the <ulink url="http://www.freedesktop.org/wiki/Specifications/sound-theme-spec">Sound Theme spec</ulink>
 918    * for more information on event sounds and sound themes.
 919    *
 920    * GTK+ itself does not support event sounds, you have to use a loadable
 921    * module like the one that comes with libcanberra.
 922    *
 923    * Since: 2.14
 924    */
 925   result = settings_install_property_parser (class,
 926                                              g_param_spec_boolean ("gtk-enable-input-feedback-sounds",
 927                                                                    /* Translators: this means sounds that are played as feedback to user input */
 928                                                                    P_("Audible Input Feedback"),
 929                                                                    P_("Whether to play event sounds as feedback to user input"),
 930                                                                    TRUE,
 931                                                                    GTK_PARAM_READWRITE),
 932                                              NULL);
 933   g_assert (result == PROP_ENABLE_INPUT_FEEDBACK_SOUNDS);
 934
 935   /**
 936    * GtkSettings:gtk-enable-event-sounds:
 937    *
 938    * Whether to play any event sounds at all.
 939    *
 940    * See the <ulink url="http://www.freedesktop.org/wiki/Specifications/sound-theme-spec">Sound Theme spec</ulink>
 941    * for more information on event sounds and sound themes.
 942    *
 943    * GTK+ itself does not support event sounds, you have to use a loadable
 944    * module like the one that comes with libcanberra.
 945    *
 946    * Since: 2.14
 947    */
 948   result = settings_install_property_parser (class,
 949                                              g_param_spec_boolean ("gtk-enable-event-sounds",
 950                                                                    P_("Enable Event Sounds"),
 951                                                                    P_("Whether to play any event sounds at all"),
 952                                                                    TRUE,
 953                                                                    GTK_PARAM_READWRITE),
 954                                              NULL);
 955   g_assert (result == PROP_ENABLE_EVENT_SOUNDS);
 956
 957   /**
 958    * GtkSettings:gtk-enable-tooltips:
 959    *
 960    * Whether tooltips should be shown on widgets.
 961    *
 962    * Since: 2.14
 963    */
 964   result = settings_install_property_parser (class,
 965                                              g_param_spec_boolean ("gtk-enable-tooltips",
 966                                                                    P_("Enable Tooltips"),
 967                                                                    P_("Whether tooltips should be shown on widgets"),
 968                                                                    TRUE,
 969                                                                    GTK_PARAM_READWRITE),
 970                                              NULL);
 971   g_assert (result == PROP_ENABLE_TOOLTIPS);
 972
 973   /**
 974    * GtkSettings:toolbar-style:
 975    *
 976    * The size of icons in default toolbars.
 977    *
 978    * Since: 2.18
 979    */
 980   result = settings_install_property_parser (class,
 981                                              g_param_spec_enum ("gtk-toolbar-style",
 982                                                                    P_("Toolbar style"),
 983                                                                    P_("Whether default toolbars have text only, text and icons, icons only, etc."),
 984                                                                    GTK_TYPE_TOOLBAR_STYLE,
 985                                                                    GTK_TOOLBAR_BOTH,
 986                                                                    GTK_PARAM_READWRITE),
 987                                              NULL);
 988   g_assert (result == PROP_TOOLBAR_STYLE);
 989
 990   /**
 991    * GtkSettings:toolbar-icon-size:
 992    *
 993    * The size of icons in default toolbars.
 994    *
 995    * Since: 2.18
 996    */
 997   result = settings_install_property_parser (class,
 998                                              g_param_spec_enum ("gtk-toolbar-icon-size",
 999                                                                    P_("Toolbar Icon Size"),
1000                                                                    P_("The size of icons in default toolbars."),
1001                                                                    GTK_TYPE_ICON_SIZE,
1002                                                                    GTK_ICON_SIZE_LARGE_TOOLBAR,
1003                                                                    GTK_PARAM_READWRITE),
1004                                              NULL);
1005   g_assert (result == PROP_TOOLBAR_ICON_SIZE);
1006 }
1007
1008 static void
1009 gtk_settings_finalize (GObject *object)
1010 {
1011   GtkSettings *settings = GTK_SETTINGS (object);
1012   guint i;
1013
1014   object_list = g_slist_remove (object_list, settings);
1015
1016   _gtk_rc_context_destroy (settings);
1017
1018   for (i = 0; i < class_n_properties; i++)
1019     g_value_unset (&settings->property_values[i].value);
1020   g_free (settings->property_values);
1021
1022   g_datalist_clear (&settings->queued_settings);
1023
1024   G_OBJECT_CLASS (gtk_settings_parent_class)->finalize (object);
1025 }
1026
1027 /**
1028  * gtk_settings_get_for_screen:
1029  * @screen : a #GdkScreen.
1030  *
1031  * Gets the #GtkSettings object for @screen, creating it if necessary.
1032  *
1033  * Return value: a #GtkSettings object.
1034  *
1035  * Since: 2.2
1036  */
1037 GtkSettings*
1038 gtk_settings_get_for_screen (GdkScreen *screen)
1039 {
1040   GtkSettings *settings;
1041
1042   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
1043
1044   settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
1045   if (!settings)
1046     {
1047       settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
1048       settings->screen = screen;
1049       g_object_set_data_full (G_OBJECT (screen), I_("gtk-settings"),
1050                               settings, g_object_unref);
1051
1052       gtk_rc_reparse_all_for_settings (settings, TRUE);
1053       settings_update_double_click (settings);
1054 #ifdef GDK_WINDOWING_X11
1055       settings_update_cursor_theme (settings);
1056       settings_update_resolution (settings);
1057       settings_update_font_options (settings);
1058 #endif
1059       settings_update_color_scheme (settings);
1060     }
1061
1062   return settings;
1063 }
1064
1065 /**
1066  * gtk_settings_get_default:
1067  *
1068  * Gets the #GtkSettings object for the default GDK screen, creating
1069  * it if necessary. See gtk_settings_get_for_screen().
1070  *
1071  * Return value: a #GtkSettings object. If there is no default
1072  *  screen, then returns %NULL.
1073  **/
1074 GtkSettings*
1075 gtk_settings_get_default (void)
1076 {
1077   GdkScreen *screen = gdk_screen_get_default ();
1078
1079   if (screen)
1080     return gtk_settings_get_for_screen (screen);
1081   else
1082     return NULL;
1083 }
1084
1085 static void
1086 gtk_settings_set_property (GObject      *object,
1087                            guint         property_id,
1088                            const GValue *value,
1089                            GParamSpec   *pspec)
1090 {
1091   GtkSettings *settings = GTK_SETTINGS (object);
1092
1093   g_value_copy (value, &settings->property_values[property_id - 1].value);
1094   settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
1095
1096   if (pspec->param_id == PROP_COLOR_SCHEME)
1097     merge_color_scheme (settings, value, GTK_SETTINGS_SOURCE_APPLICATION);
1098 }
1099
1100 static void
1101 gtk_settings_get_property (GObject     *object,
1102                            guint        property_id,
1103                            GValue      *value,
1104                            GParamSpec  *pspec)
1105 {
1106   GtkSettings *settings = GTK_SETTINGS (object);
1107   GType value_type = G_VALUE_TYPE (value);
1108   GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
1109
1110   /* handle internal properties */
1111   switch (property_id)
1112     {
1113     case PROP_COLOR_HASH:
1114       g_value_set_boxed (value, get_color_hash (settings));
1115       return;
1116     case PROP_COLOR_SCHEME:
1117       g_value_take_string (value, get_color_scheme (settings));
1118       return;
1119     default: ;
1120     }
1121
1122   /* For enums and strings, we need to get the value as a string,
1123    * not as an int, since we support using names/nicks as the setting
1124    * value.
1125    */
1126   if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
1127        !(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
1128       g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
1129       g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
1130     {
1131       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
1132           !gdk_screen_get_setting (settings->screen, pspec->name, value))
1133         g_value_copy (&settings->property_values[property_id - 1].value, value);
1134       else
1135         g_param_value_validate (pspec, value);
1136     }
1137   else
1138     {
1139       GValue val = { 0, };
1140
1141       /* Try to get xsetting as a string and parse it. */
1142
1143       g_value_init (&val, G_TYPE_STRING);
1144
1145       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
1146           !gdk_screen_get_setting (settings->screen, pspec->name, &val))
1147         {
1148           g_value_copy (&settings->property_values[property_id - 1].value, value);
1149         }
1150       else
1151         {
1152           GValue tmp_value = { 0, };
1153           GValue gstring_value = { 0, };
1154           GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
1155
1156           g_value_init (&gstring_value, G_TYPE_GSTRING);
1157           g_value_take_boxed (&gstring_value,
1158                               g_string_new (g_value_get_string (&val)));
1159
1160           g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1161
1162           if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
1163                                                      pspec, &tmp_value))
1164             {
1165               g_value_copy (&tmp_value, value);
1166               g_param_value_validate (pspec, value);
1167             }
1168           else
1169             {
1170               g_value_copy (&settings->property_values[property_id - 1].value, value);
1171             }
1172
1173           g_value_unset (&gstring_value);
1174           g_value_unset (&tmp_value);
1175         }
1176
1177       g_value_unset (&val);
1178     }
1179 }
1180
1181 static void
1182 gtk_settings_notify (GObject    *object,
1183                      GParamSpec *pspec)
1184 {
1185   GtkSettings *settings = GTK_SETTINGS (object);
1186   guint property_id = pspec->param_id;
1187
1188   if (settings->screen == NULL) /* initialization */
1189     return;
1190
1191   switch (property_id)
1192     {
1193     case PROP_MODULES:
1194       settings_update_modules (settings);
1195       break;
1196     case PROP_DOUBLE_CLICK_TIME:
1197     case PROP_DOUBLE_CLICK_DISTANCE:
1198       settings_update_double_click (settings);
1199       break;
1200     case PROP_COLOR_SCHEME:
1201       settings_update_color_scheme (settings);
1202       break;
1203 #ifdef GDK_WINDOWING_X11
1204     case PROP_XFT_DPI:
1205       settings_update_resolution (settings);
1206       /* This is a hack because with gtk_rc_reset_styles() doesn't get
1207        * widgets with gtk_widget_style_set(), and also causes more
1208        * recomputation than necessary.
1209        */
1210       gtk_rc_reset_styles (GTK_SETTINGS (object));
1211       break;
1212     case PROP_XFT_ANTIALIAS:
1213     case PROP_XFT_HINTING:
1214     case PROP_XFT_HINTSTYLE:
1215     case PROP_XFT_RGBA:
1216       settings_update_font_options (settings);
1217       gtk_rc_reset_styles (GTK_SETTINGS (object));
1218       break;
1219     case PROP_FONTCONFIG_TIMESTAMP:
1220       if (settings_update_fontconfig (settings))
1221         gtk_rc_reset_styles (GTK_SETTINGS (object));
1222       break;
1223     case PROP_CURSOR_THEME_NAME:
1224     case PROP_CURSOR_THEME_SIZE:
1225       settings_update_cursor_theme (settings);
1226       break;
1227 #endif /* GDK_WINDOWING_X11 */
1228     }
1229 }
1230
1231 gboolean
1232 _gtk_settings_parse_convert (GtkRcPropertyParser parser,
1233                              const GValue       *src_value,
1234                              GParamSpec         *pspec,
1235                              GValue             *dest_value)
1236 {
1237   gboolean success = FALSE;
1238
1239   g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
1240
1241   if (parser)
1242     {
1243       GString *gstring;
1244       gboolean free_gstring = TRUE;
1245
1246       if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1247         {
1248           gstring = g_value_get_boxed (src_value);
1249           free_gstring = FALSE;
1250         }
1251       else if (G_VALUE_HOLDS_LONG (src_value))
1252         {
1253           gstring = g_string_new (NULL);
1254           g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
1255         }
1256       else if (G_VALUE_HOLDS_DOUBLE (src_value))
1257         {
1258           gstring = g_string_new (NULL);
1259           g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
1260         }
1261       else if (G_VALUE_HOLDS_STRING (src_value))
1262         {
1263           gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
1264
1265           gstring = g_string_new ("\"");
1266           g_string_append (gstring, tstr);
1267           g_string_append_c (gstring, '\"');
1268           g_free (tstr);
1269         }
1270       else
1271         {
1272           g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
1273           gstring = NULL; /* silence compiler */
1274         }
1275
1276       success = (parser (pspec, gstring, dest_value) &&
1277                  !g_param_value_validate (pspec, dest_value));
1278
1279       if (free_gstring)
1280         g_string_free (gstring, TRUE);
1281     }
1282   else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1283     {
1284       if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
1285         {
1286           GString *gstring = g_value_get_boxed (src_value);
1287
1288           g_value_set_string (dest_value, gstring ? gstring->str : NULL);
1289           success = !g_param_value_validate (pspec, dest_value);
1290         }
1291     }
1292   else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
1293     success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
1294
1295   return success;
1296 }
1297
1298 static void
1299 apply_queued_setting (GtkSettings             *data,
1300                       GParamSpec              *pspec,
1301                       GtkSettingsValuePrivate *qvalue)
1302 {
1303   GValue tmp_value = { 0, };
1304   GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
1305
1306   g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1307   if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
1308                                    pspec, &tmp_value))
1309     {
1310       if (pspec->param_id == PROP_COLOR_SCHEME)
1311         merge_color_scheme (data, &tmp_value, qvalue->source);
1312
1313       if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
1314         {
1315           g_value_copy (&tmp_value, &data->property_values[pspec->param_id - 1].value);
1316           data->property_values[pspec->param_id - 1].source = qvalue->source;
1317           g_object_notify (G_OBJECT (data), g_param_spec_get_name (pspec));
1318         }
1319
1320     }
1321   else
1322     {
1323       gchar *debug = g_strdup_value_contents (&qvalue->public.value);
1324
1325       g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
1326                  qvalue->public.origin ? qvalue->public.origin : "(for origin information, set GTK_DEBUG)",
1327                  pspec->name,
1328                  g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
1329                  debug,
1330                  G_VALUE_TYPE_NAME (&tmp_value));
1331       g_free (debug);
1332     }
1333   g_value_unset (&tmp_value);
1334 }
1335
1336 static guint
1337 settings_install_property_parser (GtkSettingsClass   *class,
1338                                   GParamSpec         *pspec,
1339                                   GtkRcPropertyParser parser)
1340 {
1341   GSList *node, *next;
1342
1343   switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
1344     {
1345     case G_TYPE_BOOLEAN:
1346     case G_TYPE_UCHAR:
1347     case G_TYPE_CHAR:
1348     case G_TYPE_UINT:
1349     case G_TYPE_INT:
1350     case G_TYPE_ULONG:
1351     case G_TYPE_LONG:
1352     case G_TYPE_FLOAT:
1353     case G_TYPE_DOUBLE:
1354     case G_TYPE_STRING:
1355     case G_TYPE_ENUM:
1356       break;
1357     case G_TYPE_BOXED:
1358       if (strcmp (g_param_spec_get_name (pspec), "color-hash") == 0)
1359         {
1360           break;
1361         }
1362       /* fall through */
1363     default:
1364       if (!parser)
1365         {
1366           g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
1367                      pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
1368           return 0;
1369         }
1370     }
1371   if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
1372     {
1373       g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
1374                  pspec->name);
1375       return 0;
1376     }
1377
1378   for (node = object_list; node; node = node->next)
1379     g_object_freeze_notify (node->data);
1380
1381   g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
1382   g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
1383
1384   for (node = object_list; node; node = node->next)
1385     {
1386       GtkSettings *settings = node->data;
1387       GtkSettingsValuePrivate *qvalue;
1388
1389       settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
1390       settings->property_values[class_n_properties - 1].value.g_type = 0;
1391       g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1392       g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
1393       settings->property_values[class_n_properties - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
1394       g_object_notify (G_OBJECT (settings), pspec->name);
1395
1396       qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
1397       if (qvalue)
1398         apply_queued_setting (settings, pspec, qvalue);
1399     }
1400
1401   for (node = object_list; node; node = next)
1402     {
1403       next = node->next;
1404       g_object_thaw_notify (node->data);
1405     }
1406
1407   return class_n_properties;
1408 }
1409
1410 GtkRcPropertyParser
1411 _gtk_rc_property_parser_from_type (GType type)
1412 {
1413   if (type == GDK_TYPE_COLOR)
1414     return gtk_rc_property_parse_color;
1415   else if (type == GTK_TYPE_REQUISITION)
1416     return gtk_rc_property_parse_requisition;
1417   else if (type == GTK_TYPE_BORDER)
1418     return gtk_rc_property_parse_border;
1419   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
1420     return gtk_rc_property_parse_enum;
1421   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
1422     return gtk_rc_property_parse_flags;
1423   else
1424     return NULL;
1425 }
1426
1427 void
1428 gtk_settings_install_property (GParamSpec *pspec)
1429 {
1430   static GtkSettingsClass *klass = NULL;
1431
1432   GtkRcPropertyParser parser;
1433
1434   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1435
1436   if (! klass)
1437     klass = g_type_class_ref (GTK_TYPE_SETTINGS);
1438
1439   parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
1440
1441   settings_install_property_parser (klass, pspec, parser);
1442 }
1443
1444 void
1445 gtk_settings_install_property_parser (GParamSpec          *pspec,
1446                                       GtkRcPropertyParser  parser)
1447 {
1448   static GtkSettingsClass *klass = NULL;
1449
1450   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1451   g_return_if_fail (parser != NULL);
1452
1453   if (! klass)
1454     klass = g_type_class_ref (GTK_TYPE_SETTINGS);
1455
1456   settings_install_property_parser (klass, pspec, parser);
1457 }
1458
1459 static void
1460 free_value (gpointer data)
1461 {
1462   GtkSettingsValuePrivate *qvalue = data;
1463
1464   g_value_unset (&qvalue->public.value);
1465   g_free (qvalue->public.origin);
1466   g_slice_free (GtkSettingsValuePrivate, qvalue);
1467 }
1468
1469 static void
1470 gtk_settings_set_property_value_internal (GtkSettings            *settings,
1471                                           const gchar            *prop_name,
1472                                           const GtkSettingsValue *new_value,
1473                                           GtkSettingsSource       source)
1474 {
1475   GtkSettingsValuePrivate *qvalue;
1476   GParamSpec *pspec;
1477   gchar *name;
1478   GQuark name_quark;
1479
1480   if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
1481       !G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
1482       !G_VALUE_HOLDS_STRING (&new_value->value) &&
1483       !G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
1484     {
1485       g_warning (G_STRLOC ": value type invalid");
1486       return;
1487     }
1488
1489   name = g_strdup (prop_name);
1490   g_strcanon (name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
1491   name_quark = g_quark_from_string (name);
1492   g_free (name);
1493
1494   qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
1495   if (!qvalue)
1496     {
1497       qvalue = g_slice_new0 (GtkSettingsValuePrivate);
1498       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
1499     }
1500   else
1501     {
1502       g_free (qvalue->public.origin);
1503       g_value_unset (&qvalue->public.value);
1504     }
1505   qvalue->public.origin = g_strdup (new_value->origin);
1506   g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
1507   g_value_copy (&new_value->value, &qvalue->public.value);
1508   qvalue->source = source;
1509   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
1510   if (pspec)
1511     apply_queued_setting (settings, pspec, qvalue);
1512 }
1513
1514 void
1515 gtk_settings_set_property_value (GtkSettings            *settings,
1516                                  const gchar            *prop_name,
1517                                  const GtkSettingsValue *new_value)
1518 {
1519   g_return_if_fail (GTK_SETTINGS (settings));
1520   g_return_if_fail (prop_name != NULL);
1521   g_return_if_fail (new_value != NULL);
1522
1523   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1524                                             GTK_SETTINGS_SOURCE_APPLICATION);
1525 }
1526
1527 void
1528 _gtk_settings_set_property_value_from_rc (GtkSettings            *settings,
1529                                           const gchar            *prop_name,
1530                                           const GtkSettingsValue *new_value)
1531 {
1532   g_return_if_fail (GTK_SETTINGS (settings));
1533   g_return_if_fail (prop_name != NULL);
1534   g_return_if_fail (new_value != NULL);
1535
1536   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1537                                             GTK_SETTINGS_SOURCE_RC_FILE);
1538 }
1539
1540 void
1541 gtk_settings_set_string_property (GtkSettings *settings,
1542                                   const gchar *name,
1543                                   const gchar *v_string,
1544                                   const gchar *origin)
1545 {
1546   GtkSettingsValue svalue = { NULL, { 0, }, };
1547
1548   g_return_if_fail (GTK_SETTINGS (settings));
1549   g_return_if_fail (name != NULL);
1550   g_return_if_fail (v_string != NULL);
1551
1552   svalue.origin = (gchar*) origin;
1553   g_value_init (&svalue.value, G_TYPE_STRING);
1554   g_value_set_static_string (&svalue.value, v_string);
1555   gtk_settings_set_property_value (settings, name, &svalue);
1556   g_value_unset (&svalue.value);
1557 }
1558
1559 void
1560 gtk_settings_set_long_property (GtkSettings *settings,
1561                                 const gchar *name,
1562                                 glong        v_long,
1563                                 const gchar *origin)
1564 {
1565   GtkSettingsValue svalue = { NULL, { 0, }, };
1566
1567   g_return_if_fail (GTK_SETTINGS (settings));
1568   g_return_if_fail (name != NULL);
1569
1570   svalue.origin = (gchar*) origin;
1571   g_value_init (&svalue.value, G_TYPE_LONG);
1572   g_value_set_long (&svalue.value, v_long);
1573   gtk_settings_set_property_value (settings, name, &svalue);
1574   g_value_unset (&svalue.value);
1575 }
1576
1577 void
1578 gtk_settings_set_double_property (GtkSettings *settings,
1579                                   const gchar *name,
1580                                   gdouble      v_double,
1581                                   const gchar *origin)
1582 {
1583   GtkSettingsValue svalue = { NULL, { 0, }, };
1584
1585   g_return_if_fail (GTK_SETTINGS (settings));
1586   g_return_if_fail (name != NULL);
1587
1588   svalue.origin = (gchar*) origin;
1589   g_value_init (&svalue.value, G_TYPE_DOUBLE);
1590   g_value_set_double (&svalue.value, v_double);
1591   gtk_settings_set_property_value (settings, name, &svalue);
1592   g_value_unset (&svalue.value);
1593 }
1594
1595 /**
1596  * gtk_rc_property_parse_color:
1597  * @pspec: a #GParamSpec
1598  * @gstring: the #GString to be parsed
1599  * @property_value: a #GValue which must hold #GdkColor values.
1600  *
1601  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1602  * or gtk_widget_class_install_style_property_parser() which parses a
1603  * color given either by its name or in the form
1604  * <literal>{ red, green, blue }</literal> where %red, %green and
1605  * %blue are integers between 0 and 65535 or floating-point numbers
1606  * between 0 and 1.
1607  *
1608  * Return value: %TRUE if @gstring could be parsed and @property_value
1609  * has been set to the resulting #GdkColor.
1610  **/
1611 gboolean
1612 gtk_rc_property_parse_color (const GParamSpec *pspec,
1613                              const GString    *gstring,
1614                              GValue           *property_value)
1615 {
1616   GdkColor color = { 0, 0, 0, 0, };
1617   GScanner *scanner;
1618   gboolean success;
1619
1620   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1621   g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
1622
1623   scanner = gtk_rc_scanner_new ();
1624   g_scanner_input_text (scanner, gstring->str, gstring->len);
1625   if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
1626       g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
1627     {
1628       g_value_set_boxed (property_value, &color);
1629       success = TRUE;
1630     }
1631   else
1632     success = FALSE;
1633   g_scanner_destroy (scanner);
1634
1635   return success;
1636 }
1637
1638 /**
1639  * gtk_rc_property_parse_enum:
1640  * @pspec: a #GParamSpec
1641  * @gstring: the #GString to be parsed
1642  * @property_value: a #GValue which must hold enum values.
1643  *
1644  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1645  * or gtk_widget_class_install_style_property_parser() which parses a single
1646  * enumeration value.
1647  *
1648  * The enumeration value can be specified by its name, its nickname or
1649  * its numeric value. For consistency with flags parsing, the value
1650  * may be surrounded by parentheses.
1651  *
1652  * Return value: %TRUE if @gstring could be parsed and @property_value
1653  * has been set to the resulting #GEnumValue.
1654  **/
1655 gboolean
1656 gtk_rc_property_parse_enum (const GParamSpec *pspec,
1657                             const GString    *gstring,
1658                             GValue           *property_value)
1659 {
1660   gboolean need_closing_brace = FALSE, success = FALSE;
1661   GScanner *scanner;
1662   GEnumValue *enum_value = NULL;
1663
1664   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1665   g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
1666
1667   scanner = gtk_rc_scanner_new ();
1668   g_scanner_input_text (scanner, gstring->str, gstring->len);
1669
1670   /* we just want to parse _one_ value, but for consistency with flags parsing
1671    * we support optional parenthesis
1672    */
1673   g_scanner_get_next_token (scanner);
1674   if (scanner->token == '(')
1675     {
1676       need_closing_brace = TRUE;
1677       g_scanner_get_next_token (scanner);
1678     }
1679   if (scanner->token == G_TOKEN_IDENTIFIER)
1680     {
1681       GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
1682
1683       enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
1684       if (!enum_value)
1685         enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
1686       if (enum_value)
1687         {
1688           g_value_set_enum (property_value, enum_value->value);
1689           success = TRUE;
1690         }
1691     }
1692   else if (scanner->token == G_TOKEN_INT)
1693     {
1694       g_value_set_enum (property_value, scanner->value.v_int);
1695       success = TRUE;
1696     }
1697   if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
1698     success = FALSE;
1699   if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
1700     success = FALSE;
1701
1702   g_scanner_destroy (scanner);
1703
1704   return success;
1705 }
1706
1707 static guint
1708 parse_flags_value (GScanner    *scanner,
1709                    GFlagsClass *class,
1710                    guint       *number)
1711 {
1712   g_scanner_get_next_token (scanner);
1713   if (scanner->token == G_TOKEN_IDENTIFIER)
1714     {
1715       GFlagsValue *flags_value;
1716
1717       flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
1718       if (!flags_value)
1719         flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
1720       if (flags_value)
1721         {
1722           *number |= flags_value->value;
1723           return G_TOKEN_NONE;
1724         }
1725     }
1726   else if (scanner->token == G_TOKEN_INT)
1727     {
1728       *number |= scanner->value.v_int;
1729       return G_TOKEN_NONE;
1730     }
1731   return G_TOKEN_IDENTIFIER;
1732 }
1733
1734 /**
1735  * gtk_rc_property_parse_flags:
1736  * @pspec: a #GParamSpec
1737  * @gstring: the #GString to be parsed
1738  * @property_value: a #GValue which must hold flags values.
1739  *
1740  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1741  * or gtk_widget_class_install_style_property_parser() which parses flags.
1742  *
1743  * Flags can be specified by their name, their nickname or
1744  * numerically. Multiple flags can be specified in the form
1745  * <literal>"( flag1 | flag2 | ... )"</literal>.
1746  *
1747  * Return value: %TRUE if @gstring could be parsed and @property_value
1748  * has been set to the resulting flags value.
1749  **/
1750 gboolean
1751 gtk_rc_property_parse_flags (const GParamSpec *pspec,
1752                              const GString    *gstring,
1753                              GValue           *property_value)
1754 {
1755   GFlagsClass *class;
1756    gboolean success = FALSE;
1757   GScanner *scanner;
1758
1759   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1760   g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
1761
1762   class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
1763   scanner = gtk_rc_scanner_new ();
1764   g_scanner_input_text (scanner, gstring->str, gstring->len);
1765
1766   /* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
1767   if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
1768       scanner->next_token == G_TOKEN_INT)
1769     {
1770       guint token, flags_value = 0;
1771
1772       token = parse_flags_value (scanner, class, &flags_value);
1773
1774       if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1775         {
1776           success = TRUE;
1777           g_value_set_flags (property_value, flags_value);
1778         }
1779
1780     }
1781   else if (g_scanner_get_next_token (scanner) == '(')
1782     {
1783       guint token, flags_value = 0;
1784
1785       /* parse first value */
1786       token = parse_flags_value (scanner, class, &flags_value);
1787
1788       /* parse nth values, preceeded by '|' */
1789       while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
1790         token = parse_flags_value (scanner, class, &flags_value);
1791
1792       /* done, last token must have closed expression */
1793       if (token == G_TOKEN_NONE && scanner->token == ')' &&
1794           g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1795         {
1796           g_value_set_flags (property_value, flags_value);
1797           success = TRUE;
1798         }
1799     }
1800   g_scanner_destroy (scanner);
1801
1802   return success;
1803 }
1804
1805 static gboolean
1806 get_braced_int (GScanner *scanner,
1807                 gboolean  first,
1808                 gboolean  last,
1809                 gint     *value)
1810 {
1811   if (first)
1812     {
1813       g_scanner_get_next_token (scanner);
1814       if (scanner->token != '{')
1815         return FALSE;
1816     }
1817
1818   g_scanner_get_next_token (scanner);
1819   if (scanner->token != G_TOKEN_INT)
1820     return FALSE;
1821
1822   *value = scanner->value.v_int;
1823
1824   if (last)
1825     {
1826       g_scanner_get_next_token (scanner);
1827       if (scanner->token != '}')
1828         return FALSE;
1829     }
1830   else
1831     {
1832       g_scanner_get_next_token (scanner);
1833       if (scanner->token != ',')
1834         return FALSE;
1835     }
1836
1837   return TRUE;
1838 }
1839
1840 /**
1841  * gtk_rc_property_parse_requisition:
1842  * @pspec: a #GParamSpec
1843  * @gstring: the #GString to be parsed
1844  * @property_value: a #GValue which must hold boxed values.
1845  *
1846  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1847  * or gtk_widget_class_install_style_property_parser() which parses a
1848  * requisition in the form
1849  * <literal>"{ width, height }"</literal> for integers %width and %height.
1850  *
1851  * Return value: %TRUE if @gstring could be parsed and @property_value
1852  * has been set to the resulting #GtkRequisition.
1853  **/
1854 gboolean
1855 gtk_rc_property_parse_requisition  (const GParamSpec *pspec,
1856                                     const GString    *gstring,
1857                                     GValue           *property_value)
1858 {
1859   GtkRequisition requisition;
1860   GScanner *scanner;
1861   gboolean success = FALSE;
1862
1863   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1864   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1865
1866   scanner = gtk_rc_scanner_new ();
1867   g_scanner_input_text (scanner, gstring->str, gstring->len);
1868
1869   if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
1870       get_braced_int (scanner, FALSE, TRUE, &requisition.height))
1871     {
1872       g_value_set_boxed (property_value, &requisition);
1873       success = TRUE;
1874     }
1875
1876   g_scanner_destroy (scanner);
1877
1878   return success;
1879 }
1880
1881 /**
1882  * gtk_rc_property_parse_border:
1883  * @pspec: a #GParamSpec
1884  * @gstring: the #GString to be parsed
1885  * @property_value: a #GValue which must hold boxed values.
1886  *
1887  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1888  * or gtk_widget_class_install_style_property_parser() which parses
1889  * borders in the form
1890  * <literal>"{ left, right, top, bottom }"</literal> for integers
1891  * %left, %right, %top and %bottom.
1892  *
1893  * Return value: %TRUE if @gstring could be parsed and @property_value
1894  * has been set to the resulting #GtkBorder.
1895  **/
1896 gboolean
1897 gtk_rc_property_parse_border (const GParamSpec *pspec,
1898                               const GString    *gstring,
1899                               GValue           *property_value)
1900 {
1901   GtkBorder border;
1902   GScanner *scanner;
1903   gboolean success = FALSE;
1904
1905   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1906   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1907
1908   scanner = gtk_rc_scanner_new ();
1909   g_scanner_input_text (scanner, gstring->str, gstring->len);
1910
1911   if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
1912       get_braced_int (scanner, FALSE, FALSE, &border.right) &&
1913       get_braced_int (scanner, FALSE, FALSE, &border.top) &&
1914       get_braced_int (scanner, FALSE, TRUE, &border.bottom))
1915     {
1916       g_value_set_boxed (property_value, &border);
1917       success = TRUE;
1918     }
1919
1920   g_scanner_destroy (scanner);
1921
1922   return success;
1923 }
1924
1925 void
1926 _gtk_settings_handle_event (GdkEventSetting *event)
1927 {
1928   GtkSettings *settings;
1929   GParamSpec *pspec;
1930   guint property_id;
1931
1932   settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
1933   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name);
1934
1935   if (pspec)
1936     {
1937       property_id = pspec->param_id;
1938
1939       if (property_id == PROP_COLOR_SCHEME)
1940         {
1941           GValue value = { 0, };
1942
1943           g_value_init (&value, G_TYPE_STRING);
1944           if (!gdk_screen_get_setting (settings->screen, pspec->name, &value))
1945             g_value_set_static_string (&value, "");
1946           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
1947           g_value_unset (&value);
1948         }
1949       g_object_notify (G_OBJECT (settings), pspec->name);
1950    }
1951 }
1952
1953 static void
1954 reset_rc_values_foreach (GQuark    key_id,
1955                          gpointer  data,
1956                          gpointer  user_data)
1957 {
1958   GtkSettingsValuePrivate *qvalue = data;
1959   GSList **to_reset = user_data;
1960
1961   if (qvalue->source == GTK_SETTINGS_SOURCE_RC_FILE)
1962     *to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
1963 }
1964
1965 void
1966 _gtk_settings_reset_rc_values (GtkSettings *settings)
1967 {
1968   GSList *to_reset = NULL;
1969   GSList *tmp_list;
1970   GParamSpec **pspecs, **p;
1971   gint i;
1972
1973   /* Remove any queued settings
1974    */
1975   g_datalist_foreach (&settings->queued_settings,
1976                       reset_rc_values_foreach,
1977                       &to_reset);
1978
1979   for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
1980     {
1981       GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
1982       g_datalist_id_remove_data (&settings->queued_settings, key_id);
1983     }
1984
1985    g_slist_free (to_reset);
1986
1987   /* Now reset the active settings
1988    */
1989   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
1990   i = 0;
1991
1992   g_object_freeze_notify (G_OBJECT (settings));
1993   for (p = pspecs; *p; p++)
1994     {
1995       if (settings->property_values[i].source == GTK_SETTINGS_SOURCE_RC_FILE)
1996         {
1997           GParamSpec *pspec = *p;
1998
1999           g_param_value_set_default (pspec, &settings->property_values[i].value);
2000           g_object_notify (G_OBJECT (settings), pspec->name);
2001         }
2002       i++;
2003     }
2004   g_object_thaw_notify (G_OBJECT (settings));
2005   g_free (pspecs);
2006 }
2007
2008 static void
2009 settings_update_double_click (GtkSettings *settings)
2010 {
2011   if (gdk_screen_get_number (settings->screen) == 0)
2012     {
2013       GdkDisplay *display = gdk_screen_get_display (settings->screen);
2014       gint double_click_time;
2015       gint double_click_distance;
2016
2017       g_object_get (settings,
2018                     "gtk-double-click-time", &double_click_time,
2019                     "gtk-double-click-distance", &double_click_distance,
2020                     NULL);
2021
2022       gdk_display_set_double_click_time (display, double_click_time);
2023       gdk_display_set_double_click_distance (display, double_click_distance);
2024     }
2025 }
2026
2027 static void
2028 settings_update_modules (GtkSettings *settings)
2029 {
2030   gchar *modules;
2031
2032   g_object_get (settings,
2033                 "gtk-modules", &modules,
2034                 NULL);
2035
2036   _gtk_modules_settings_changed (settings, modules);
2037
2038   g_free (modules);
2039 }
2040
2041 #ifdef GDK_WINDOWING_X11
2042 static void
2043 settings_update_cursor_theme (GtkSettings *settings)
2044 {
2045   GdkDisplay *display = gdk_screen_get_display (settings->screen);
2046   gchar *theme = NULL;
2047   gint size = 0;
2048
2049   g_object_get (settings,
2050                 "gtk-cursor-theme-name", &theme,
2051                 "gtk-cursor-theme-size", &size,
2052                 NULL);
2053
2054   gdk_x11_display_set_cursor_theme (display, theme, size);
2055
2056   g_free (theme);
2057 }
2058
2059 static void
2060 settings_update_font_options (GtkSettings *settings)
2061 {
2062   gint hinting;
2063   gchar *hint_style_str;
2064   cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_NONE;
2065   gint antialias;
2066   cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_GRAY;
2067   gchar *rgba_str;
2068   cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
2069   cairo_font_options_t *options;
2070
2071   g_object_get (settings,
2072                 "gtk-xft-antialias", &antialias,
2073                 "gtk-xft-hinting", &hinting,
2074                 "gtk-xft-hintstyle", &hint_style_str,
2075                 "gtk-xft-rgba", &rgba_str,
2076                 NULL);
2077
2078   options = cairo_font_options_create ();
2079
2080   cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
2081
2082   if (hinting >= 0 && !hinting)
2083     {
2084       hint_style = CAIRO_HINT_STYLE_NONE;
2085     }
2086   else if (hint_style_str)
2087     {
2088       if (strcmp (hint_style_str, "hintnone") == 0)
2089         hint_style = CAIRO_HINT_STYLE_NONE;
2090       else if (strcmp (hint_style_str, "hintslight") == 0)
2091         hint_style = CAIRO_HINT_STYLE_SLIGHT;
2092       else if (strcmp (hint_style_str, "hintmedium") == 0)
2093         hint_style = CAIRO_HINT_STYLE_MEDIUM;
2094       else if (strcmp (hint_style_str, "hintfull") == 0)
2095         hint_style = CAIRO_HINT_STYLE_FULL;
2096     }
2097
2098   g_free (hint_style_str);
2099
2100   cairo_font_options_set_hint_style (options, hint_style);
2101
2102   if (rgba_str)
2103     {
2104       if (strcmp (rgba_str, "rgb") == 0)
2105         subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
2106       else if (strcmp (rgba_str, "bgr") == 0)
2107         subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
2108       else if (strcmp (rgba_str, "vrgb") == 0)
2109         subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
2110       else if (strcmp (rgba_str, "vbgr") == 0)
2111         subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
2112
2113       g_free (rgba_str);
2114     }
2115
2116   cairo_font_options_set_subpixel_order (options, subpixel_order);
2117
2118   if (antialias >= 0 && !antialias)
2119     antialias_mode = CAIRO_ANTIALIAS_NONE;
2120   else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
2121     antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
2122   else if (antialias >= 0)
2123     antialias_mode = CAIRO_ANTIALIAS_GRAY;
2124
2125   cairo_font_options_set_antialias (options, antialias_mode);
2126
2127   gdk_screen_set_font_options (settings->screen, options);
2128
2129   cairo_font_options_destroy (options);
2130 }
2131
2132 #ifdef GDK_WINDOWING_X11
2133 static gboolean
2134 settings_update_fontconfig (GtkSettings *settings)
2135 {
2136   static guint    last_update_timestamp;
2137   static gboolean last_update_needed;
2138
2139   guint timestamp;
2140
2141   g_object_get (settings,
2142                 "gtk-fontconfig-timestamp", &timestamp,
2143                 NULL);
2144
2145   /* if timestamp is the same as last_update_timestamp, we already have
2146    * updated fontconig on this timestamp (another screen requested it perhaps?),
2147    * just return the cached result.*/
2148
2149   if (timestamp != last_update_timestamp)
2150     {
2151       PangoFontMap *fontmap = pango_cairo_font_map_get_default ();
2152       gboolean update_needed = FALSE;
2153
2154       /* bug 547680 */
2155       if (PANGO_IS_FC_FONT_MAP (fontmap) && !FcConfigUptoDate (NULL))
2156         {
2157           pango_fc_font_map_cache_clear (PANGO_FC_FONT_MAP (fontmap));
2158           if (FcInitReinitialize ())
2159             update_needed = TRUE;
2160         }
2161
2162       last_update_timestamp = timestamp;
2163       last_update_needed = update_needed;
2164     }
2165
2166   return last_update_needed;
2167 }
2168 #endif /* GDK_WINDOWING_X11 */
2169
2170 static void
2171 settings_update_resolution (GtkSettings *settings)
2172 {
2173   gint dpi_int;
2174   double dpi;
2175
2176   g_object_get (settings,
2177                 "gtk-xft-dpi", &dpi_int,
2178                 NULL);
2179
2180   if (dpi_int > 0)
2181     dpi = dpi_int / 1024.;
2182   else
2183     dpi = -1.;
2184
2185   gdk_screen_set_resolution (settings->screen, dpi);
2186 }
2187 #endif
2188
2189 typedef struct {
2190   GHashTable *color_hash;
2191   GHashTable *tables[GTK_SETTINGS_SOURCE_APPLICATION + 1];
2192   gchar *lastentry[GTK_SETTINGS_SOURCE_APPLICATION + 1];
2193 } ColorSchemeData;
2194
2195 static void
2196 color_scheme_data_free (ColorSchemeData *data)
2197 {
2198   gint i;
2199
2200   g_hash_table_unref (data->color_hash);
2201
2202   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
2203     {
2204       if (data->tables[i])
2205         g_hash_table_unref (data->tables[i]);
2206       g_free (data->lastentry[i]);
2207     }
2208
2209   g_slice_free (ColorSchemeData, data);
2210 }
2211
2212 static void
2213 settings_update_color_scheme (GtkSettings *settings)
2214 {
2215   if (!g_object_get_data (G_OBJECT (settings), "gtk-color-scheme"))
2216     {
2217       ColorSchemeData *data;
2218       GValue value = { 0, };
2219
2220       data = g_slice_new0 (ColorSchemeData);
2221       data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
2222                                                 (GDestroyNotify) gdk_color_free);
2223       g_object_set_data_full (G_OBJECT (settings), "gtk-color-scheme",
2224                               data, (GDestroyNotify) color_scheme_data_free);
2225
2226       g_value_init (&value, G_TYPE_STRING);
2227       if (gdk_screen_get_setting (settings->screen, "gtk-color-scheme", &value))
2228         {
2229           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
2230           g_value_unset (&value);
2231         }
2232    }
2233 }
2234
2235 static gboolean
2236 add_color_to_hash (gchar      *name,
2237                    GdkColor   *color,
2238                    GHashTable *target)
2239 {
2240   GdkColor *old;
2241
2242   old = g_hash_table_lookup (target, name);
2243   if (!old || !gdk_color_equal (old, color))
2244     {
2245       g_hash_table_insert (target, g_strdup (name), gdk_color_copy (color));
2246
2247       return TRUE;
2248     }
2249
2250   return FALSE;
2251 }
2252
2253 static gboolean
2254 add_colors_to_hash_from_string (GHashTable  *hash,
2255                                 const gchar *colors)
2256 {
2257   gchar *s, *p, *name;
2258   GdkColor color;
2259   gboolean changed = FALSE;
2260   gchar *copy;
2261
2262   copy = g_strdup (colors);
2263   s = copy;
2264   while (s && *s)
2265     {
2266       name = s;
2267       p = strchr (s, ':');
2268       if (p)
2269         {
2270           *p = '\0';
2271           p++;
2272         }
2273       else
2274         break;
2275
2276       while (*p == ' ')
2277         p++;
2278
2279       s = p;
2280       while (*s)
2281         {
2282           if (*s == '\n' || *s == ';')
2283             {
2284               *s = '\0';
2285               s++;
2286               break;
2287             }
2288           s++;
2289         }
2290
2291       if (gdk_color_parse (p, &color))
2292         changed |= add_color_to_hash (name, &color, hash);
2293     }
2294
2295   g_free (copy);
2296
2297   return changed;
2298 }
2299
2300 static gboolean
2301 update_color_hash (ColorSchemeData   *data,
2302                    const gchar       *str,
2303                    GtkSettingsSource  source)
2304 {
2305   gboolean changed = FALSE;
2306   gint i;
2307   GHashTable *old_hash;
2308   GHashTableIter iter;
2309   gpointer name;
2310   gpointer color;
2311
2312   if ((str == NULL || *str == '\0') &&
2313       (data->lastentry[source] == NULL || data->lastentry[source][0] == '\0'))
2314     return FALSE;
2315
2316   if (str && data->lastentry[source] && strcmp (str, data->lastentry[source]) == 0)
2317     return FALSE;
2318
2319   /* For the RC_FILE source we merge the values rather than over-writing
2320    * them, since multiple rc files might define independent sets of colors
2321    */
2322   if ((source != GTK_SETTINGS_SOURCE_RC_FILE) &&
2323       data->tables[source] && g_hash_table_size (data->tables[source]) > 0)
2324     {
2325       g_hash_table_unref (data->tables[source]);
2326       data->tables[source] = NULL;
2327       changed = TRUE; /* We can't rely on the code below since str might be "" */
2328     }
2329
2330   if (data->tables[source] == NULL)
2331     data->tables[source] = g_hash_table_new_full (g_str_hash, g_str_equal,
2332                                                   g_free,
2333                                                   (GDestroyNotify) gdk_color_free);
2334
2335   g_free (data->lastentry[source]);
2336   data->lastentry[source] = g_strdup (str);
2337
2338   changed |= add_colors_to_hash_from_string (data->tables[source], str);
2339
2340   if (!changed)
2341     return FALSE;
2342
2343   /* Rebuild the merged hash table. */
2344   if (data->color_hash)
2345     {
2346       old_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
2347                                         (GDestroyNotify) gdk_color_free);
2348
2349       g_hash_table_iter_init (&iter, data->color_hash);
2350       while (g_hash_table_iter_next (&iter, &name, &color))
2351         {
2352           g_hash_table_insert (old_hash, name, color);
2353           g_hash_table_iter_steal (&iter);
2354         }
2355     }
2356   else
2357     {
2358       old_hash = NULL;
2359     }
2360
2361   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
2362     {
2363       if (data->tables[i])
2364         g_hash_table_foreach (data->tables[i], (GHFunc) add_color_to_hash,
2365                               data->color_hash);
2366     }
2367
2368   if (old_hash)
2369     {
2370       /* now check if the merged hash has changed */
2371       changed = FALSE;
2372       if (g_hash_table_size (old_hash) != g_hash_table_size (data->color_hash))
2373         changed = TRUE;
2374       else
2375         {
2376           GHashTableIter iter;
2377           gpointer key, value, new_value;
2378
2379           g_hash_table_iter_init (&iter, old_hash);
2380           while (g_hash_table_iter_next (&iter, &key, &value))
2381             {
2382               new_value = g_hash_table_lookup (data->color_hash, key);
2383               if (!new_value || !gdk_color_equal (value, new_value))
2384                 {
2385                   changed = TRUE;
2386                   break;
2387                 }
2388             }
2389         }
2390
2391       g_hash_table_unref (old_hash);
2392     }
2393   else
2394     changed = TRUE;
2395
2396   return changed;
2397 }
2398
2399 static void
2400 merge_color_scheme (GtkSettings       *settings,
2401                     const GValue      *value,
2402                     GtkSettingsSource  source)
2403 {
2404   ColorSchemeData *data;
2405   const gchar *colors;
2406
2407   g_object_freeze_notify (G_OBJECT (settings));
2408
2409   colors = g_value_get_string (value);
2410
2411   settings_update_color_scheme (settings);
2412
2413   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2414                                                 "gtk-color-scheme");
2415
2416   if (update_color_hash (data, colors, source))
2417     g_object_notify (G_OBJECT (settings), "color-hash");
2418
2419   g_object_thaw_notify (G_OBJECT (settings));
2420 }
2421
2422 static GHashTable *
2423 get_color_hash (GtkSettings *settings)
2424 {
2425   ColorSchemeData *data;
2426
2427   settings_update_color_scheme (settings);
2428
2429   data = (ColorSchemeData *)g_object_get_data (G_OBJECT (settings),
2430                                                "gtk-color-scheme");
2431
2432   return data->color_hash;
2433 }
2434
2435 static void
2436 append_color_scheme (gpointer key,
2437                      gpointer value,
2438                      gpointer data)
2439 {
2440   gchar *name = (gchar *)key;
2441   GdkColor *color = (GdkColor *)value;
2442   GString *string = (GString *)data;
2443
2444   g_string_append_printf (string, "%s: #%04x%04x%04x\n",
2445                           name, color->red, color->green, color->blue);
2446 }
2447
2448 static gchar *
2449 get_color_scheme (GtkSettings *settings)
2450 {
2451   ColorSchemeData *data;
2452   GString *string;
2453
2454   settings_update_color_scheme (settings);
2455
2456   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2457                                                 "gtk-color-scheme");
2458
2459   string = g_string_new ("");
2460
2461   g_hash_table_foreach (data->color_hash, append_color_scheme, string);
2462
2463   return g_string_free (string, FALSE);
2464 }
2465
2466
2467 #define __GTK_SETTINGS_C__
2468 #include "gtkaliasdef.c"