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   result = settings_install_property_parser (class,
 979                                              g_param_spec_enum ("gtk-toolbar-style",
 980                                                                    P_("Toolbar style"),
 981                                                                    P_("Whether default toolbars have text only, text and icons, icons only, etc."),
 982                                                                    GTK_TYPE_TOOLBAR_STYLE,
 983                                                                    GTK_TOOLBAR_BOTH,
 984                                                                    GTK_PARAM_READWRITE),
 985                                              gtk_rc_property_parse_enum);
 986   g_assert (result == PROP_TOOLBAR_STYLE);
 987
 988   /**
 989    * GtkSettings:toolbar-icon-size:
 990    *
 991    * The size of icons in default toolbars.
 992    */
 993   result = settings_install_property_parser (class,
 994                                              g_param_spec_enum ("gtk-toolbar-icon-size",
 995                                                                    P_("Toolbar Icon Size"),
 996                                                                    P_("The size of icons in default toolbars."),
 997                                                                    GTK_TYPE_ICON_SIZE,
 998                                                                    GTK_ICON_SIZE_LARGE_TOOLBAR,
 999                                                                    GTK_PARAM_READWRITE),
1000                                              gtk_rc_property_parse_enum);
1001   g_assert (result == PROP_TOOLBAR_ICON_SIZE);
1002 }
1003
1004 static void
1005 gtk_settings_finalize (GObject *object)
1006 {
1007   GtkSettings *settings = GTK_SETTINGS (object);
1008   guint i;
1009
1010   object_list = g_slist_remove (object_list, settings);
1011
1012   _gtk_rc_context_destroy (settings);
1013
1014   for (i = 0; i < class_n_properties; i++)
1015     g_value_unset (&settings->property_values[i].value);
1016   g_free (settings->property_values);
1017
1018   g_datalist_clear (&settings->queued_settings);
1019
1020   G_OBJECT_CLASS (gtk_settings_parent_class)->finalize (object);
1021 }
1022
1023 /**
1024  * gtk_settings_get_for_screen:
1025  * @screen : a #GdkScreen.
1026  *
1027  * Gets the #GtkSettings object for @screen, creating it if necessary.
1028  *
1029  * Return value: a #GtkSettings object.
1030  *
1031  * Since: 2.2
1032  */
1033 GtkSettings*
1034 gtk_settings_get_for_screen (GdkScreen *screen)
1035 {
1036   GtkSettings *settings;
1037
1038   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
1039
1040   settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
1041   if (!settings)
1042     {
1043       settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
1044       settings->screen = screen;
1045       g_object_set_data_full (G_OBJECT (screen), I_("gtk-settings"),
1046                               settings, g_object_unref);
1047
1048       gtk_rc_reparse_all_for_settings (settings, TRUE);
1049       settings_update_double_click (settings);
1050 #ifdef GDK_WINDOWING_X11
1051       settings_update_cursor_theme (settings);
1052       settings_update_resolution (settings);
1053       settings_update_font_options (settings);
1054 #endif
1055       settings_update_color_scheme (settings);
1056     }
1057
1058   return settings;
1059 }
1060
1061 /**
1062  * gtk_settings_get_default:
1063  *
1064  * Gets the #GtkSettings object for the default GDK screen, creating
1065  * it if necessary. See gtk_settings_get_for_screen().
1066  *
1067  * Return value: (transfer none): a #GtkSettings object. If there is no default
1068  *  screen, then returns %NULL.
1069  **/
1070 GtkSettings*
1071 gtk_settings_get_default (void)
1072 {
1073   GdkScreen *screen = gdk_screen_get_default ();
1074
1075   if (screen)
1076     return gtk_settings_get_for_screen (screen);
1077   else
1078     return NULL;
1079 }
1080
1081 static void
1082 gtk_settings_set_property (GObject      *object,
1083                            guint         property_id,
1084                            const GValue *value,
1085                            GParamSpec   *pspec)
1086 {
1087   GtkSettings *settings = GTK_SETTINGS (object);
1088
1089   g_value_copy (value, &settings->property_values[property_id - 1].value);
1090   settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
1091
1092   if (pspec->param_id == PROP_COLOR_SCHEME)
1093     merge_color_scheme (settings, value, GTK_SETTINGS_SOURCE_APPLICATION);
1094 }
1095
1096 static void
1097 gtk_settings_get_property (GObject     *object,
1098                            guint        property_id,
1099                            GValue      *value,
1100                            GParamSpec  *pspec)
1101 {
1102   GtkSettings *settings = GTK_SETTINGS (object);
1103   GType value_type = G_VALUE_TYPE (value);
1104   GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
1105
1106   /* handle internal properties */
1107   switch (property_id)
1108     {
1109     case PROP_COLOR_HASH:
1110       g_value_set_boxed (value, get_color_hash (settings));
1111       return;
1112     case PROP_COLOR_SCHEME:
1113       g_value_take_string (value, get_color_scheme (settings));
1114       return;
1115     default: ;
1116     }
1117
1118   /* For enums and strings, we need to get the value as a string,
1119    * not as an int, since we support using names/nicks as the setting
1120    * value.
1121    */
1122   if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
1123        !(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
1124       g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
1125       g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
1126     {
1127       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
1128           !gdk_screen_get_setting (settings->screen, pspec->name, value))
1129         g_value_copy (&settings->property_values[property_id - 1].value, value);
1130       else
1131         g_param_value_validate (pspec, value);
1132     }
1133   else
1134     {
1135       GValue val = { 0, };
1136
1137       /* Try to get xsetting as a string and parse it. */
1138
1139       g_value_init (&val, G_TYPE_STRING);
1140
1141       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
1142           !gdk_screen_get_setting (settings->screen, pspec->name, &val))
1143         {
1144           g_value_copy (&settings->property_values[property_id - 1].value, value);
1145         }
1146       else
1147         {
1148           GValue tmp_value = { 0, };
1149           GValue gstring_value = { 0, };
1150           GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
1151
1152           g_value_init (&gstring_value, G_TYPE_GSTRING);
1153           g_value_take_boxed (&gstring_value,
1154                               g_string_new (g_value_get_string (&val)));
1155
1156           g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1157
1158           if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
1159                                                      pspec, &tmp_value))
1160             {
1161               g_value_copy (&tmp_value, value);
1162               g_param_value_validate (pspec, value);
1163             }
1164           else
1165             {
1166               g_value_copy (&settings->property_values[property_id - 1].value, value);
1167             }
1168
1169           g_value_unset (&gstring_value);
1170           g_value_unset (&tmp_value);
1171         }
1172
1173       g_value_unset (&val);
1174     }
1175 }
1176
1177 static void
1178 gtk_settings_notify (GObject    *object,
1179                      GParamSpec *pspec)
1180 {
1181   GtkSettings *settings = GTK_SETTINGS (object);
1182   guint property_id = pspec->param_id;
1183
1184   if (settings->screen == NULL) /* initialization */
1185     return;
1186
1187   switch (property_id)
1188     {
1189     case PROP_MODULES:
1190       settings_update_modules (settings);
1191       break;
1192     case PROP_DOUBLE_CLICK_TIME:
1193     case PROP_DOUBLE_CLICK_DISTANCE:
1194       settings_update_double_click (settings);
1195       break;
1196     case PROP_COLOR_SCHEME:
1197       settings_update_color_scheme (settings);
1198       break;
1199 #ifdef GDK_WINDOWING_X11
1200     case PROP_XFT_DPI:
1201       settings_update_resolution (settings);
1202       /* This is a hack because with gtk_rc_reset_styles() doesn't get
1203        * widgets with gtk_widget_style_set(), and also causes more
1204        * recomputation than necessary.
1205        */
1206       gtk_rc_reset_styles (GTK_SETTINGS (object));
1207       break;
1208     case PROP_XFT_ANTIALIAS:
1209     case PROP_XFT_HINTING:
1210     case PROP_XFT_HINTSTYLE:
1211     case PROP_XFT_RGBA:
1212       settings_update_font_options (settings);
1213       gtk_rc_reset_styles (GTK_SETTINGS (object));
1214       break;
1215     case PROP_FONTCONFIG_TIMESTAMP:
1216       if (settings_update_fontconfig (settings))
1217         gtk_rc_reset_styles (GTK_SETTINGS (object));
1218       break;
1219     case PROP_CURSOR_THEME_NAME:
1220     case PROP_CURSOR_THEME_SIZE:
1221       settings_update_cursor_theme (settings);
1222       break;
1223 #endif /* GDK_WINDOWING_X11 */
1224     }
1225 }
1226
1227 gboolean
1228 _gtk_settings_parse_convert (GtkRcPropertyParser parser,
1229                              const GValue       *src_value,
1230                              GParamSpec         *pspec,
1231                              GValue             *dest_value)
1232 {
1233   gboolean success = FALSE;
1234
1235   g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
1236
1237   if (parser)
1238     {
1239       GString *gstring;
1240       gboolean free_gstring = TRUE;
1241
1242       if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1243         {
1244           gstring = g_value_get_boxed (src_value);
1245           free_gstring = FALSE;
1246         }
1247       else if (G_VALUE_HOLDS_LONG (src_value))
1248         {
1249           gstring = g_string_new (NULL);
1250           g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
1251         }
1252       else if (G_VALUE_HOLDS_DOUBLE (src_value))
1253         {
1254           gstring = g_string_new (NULL);
1255           g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
1256         }
1257       else if (G_VALUE_HOLDS_STRING (src_value))
1258         {
1259           gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
1260
1261           gstring = g_string_new ("\"");
1262           g_string_append (gstring, tstr);
1263           g_string_append_c (gstring, '\"');
1264           g_free (tstr);
1265         }
1266       else
1267         {
1268           g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
1269           gstring = NULL; /* silence compiler */
1270         }
1271
1272       success = (parser (pspec, gstring, dest_value) &&
1273                  !g_param_value_validate (pspec, dest_value));
1274
1275       if (free_gstring)
1276         g_string_free (gstring, TRUE);
1277     }
1278   else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1279     {
1280       if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
1281         {
1282           GString *gstring = g_value_get_boxed (src_value);
1283
1284           g_value_set_string (dest_value, gstring ? gstring->str : NULL);
1285           success = !g_param_value_validate (pspec, dest_value);
1286         }
1287     }
1288   else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
1289     success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
1290
1291   return success;
1292 }
1293
1294 static void
1295 apply_queued_setting (GtkSettings             *data,
1296                       GParamSpec              *pspec,
1297                       GtkSettingsValuePrivate *qvalue)
1298 {
1299   GValue tmp_value = { 0, };
1300   GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
1301
1302   g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1303   if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
1304                                    pspec, &tmp_value))
1305     {
1306       if (pspec->param_id == PROP_COLOR_SCHEME)
1307         merge_color_scheme (data, &tmp_value, qvalue->source);
1308
1309       if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
1310         {
1311           g_value_copy (&tmp_value, &data->property_values[pspec->param_id - 1].value);
1312           data->property_values[pspec->param_id - 1].source = qvalue->source;
1313           g_object_notify (G_OBJECT (data), g_param_spec_get_name (pspec));
1314         }
1315
1316     }
1317   else
1318     {
1319       gchar *debug = g_strdup_value_contents (&qvalue->public.value);
1320
1321       g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
1322                  qvalue->public.origin ? qvalue->public.origin : "(for origin information, set GTK_DEBUG)",
1323                  pspec->name,
1324                  g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
1325                  debug,
1326                  G_VALUE_TYPE_NAME (&tmp_value));
1327       g_free (debug);
1328     }
1329   g_value_unset (&tmp_value);
1330 }
1331
1332 static guint
1333 settings_install_property_parser (GtkSettingsClass   *class,
1334                                   GParamSpec         *pspec,
1335                                   GtkRcPropertyParser parser)
1336 {
1337   GSList *node, *next;
1338
1339   switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
1340     {
1341     case G_TYPE_BOOLEAN:
1342     case G_TYPE_UCHAR:
1343     case G_TYPE_CHAR:
1344     case G_TYPE_UINT:
1345     case G_TYPE_INT:
1346     case G_TYPE_ULONG:
1347     case G_TYPE_LONG:
1348     case G_TYPE_FLOAT:
1349     case G_TYPE_DOUBLE:
1350     case G_TYPE_STRING:
1351     case G_TYPE_ENUM:
1352       break;
1353     case G_TYPE_BOXED:
1354       if (strcmp (g_param_spec_get_name (pspec), "color-hash") == 0)
1355         {
1356           break;
1357         }
1358       /* fall through */
1359     default:
1360       if (!parser)
1361         {
1362           g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
1363                      pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
1364           return 0;
1365         }
1366     }
1367   if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
1368     {
1369       g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
1370                  pspec->name);
1371       return 0;
1372     }
1373
1374   for (node = object_list; node; node = node->next)
1375     g_object_freeze_notify (node->data);
1376
1377   g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
1378   g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
1379
1380   for (node = object_list; node; node = node->next)
1381     {
1382       GtkSettings *settings = node->data;
1383       GtkSettingsValuePrivate *qvalue;
1384
1385       settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
1386       settings->property_values[class_n_properties - 1].value.g_type = 0;
1387       g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1388       g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
1389       settings->property_values[class_n_properties - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
1390       g_object_notify (G_OBJECT (settings), pspec->name);
1391
1392       qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
1393       if (qvalue)
1394         apply_queued_setting (settings, pspec, qvalue);
1395     }
1396
1397   for (node = object_list; node; node = next)
1398     {
1399       next = node->next;
1400       g_object_thaw_notify (node->data);
1401     }
1402
1403   return class_n_properties;
1404 }
1405
1406 GtkRcPropertyParser
1407 _gtk_rc_property_parser_from_type (GType type)
1408 {
1409   if (type == GDK_TYPE_COLOR)
1410     return gtk_rc_property_parse_color;
1411   else if (type == GTK_TYPE_REQUISITION)
1412     return gtk_rc_property_parse_requisition;
1413   else if (type == GTK_TYPE_BORDER)
1414     return gtk_rc_property_parse_border;
1415   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
1416     return gtk_rc_property_parse_enum;
1417   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
1418     return gtk_rc_property_parse_flags;
1419   else
1420     return NULL;
1421 }
1422
1423 void
1424 gtk_settings_install_property (GParamSpec *pspec)
1425 {
1426   static GtkSettingsClass *klass = NULL;
1427
1428   GtkRcPropertyParser parser;
1429
1430   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1431
1432   if (! klass)
1433     klass = g_type_class_ref (GTK_TYPE_SETTINGS);
1434
1435   parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
1436
1437   settings_install_property_parser (klass, pspec, parser);
1438 }
1439
1440 void
1441 gtk_settings_install_property_parser (GParamSpec          *pspec,
1442                                       GtkRcPropertyParser  parser)
1443 {
1444   static GtkSettingsClass *klass = NULL;
1445
1446   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1447   g_return_if_fail (parser != NULL);
1448
1449   if (! klass)
1450     klass = g_type_class_ref (GTK_TYPE_SETTINGS);
1451
1452   settings_install_property_parser (klass, pspec, parser);
1453 }
1454
1455 static void
1456 free_value (gpointer data)
1457 {
1458   GtkSettingsValuePrivate *qvalue = data;
1459
1460   g_value_unset (&qvalue->public.value);
1461   g_free (qvalue->public.origin);
1462   g_slice_free (GtkSettingsValuePrivate, qvalue);
1463 }
1464
1465 static void
1466 gtk_settings_set_property_value_internal (GtkSettings            *settings,
1467                                           const gchar            *prop_name,
1468                                           const GtkSettingsValue *new_value,
1469                                           GtkSettingsSource       source)
1470 {
1471   GtkSettingsValuePrivate *qvalue;
1472   GParamSpec *pspec;
1473   gchar *name;
1474   GQuark name_quark;
1475
1476   if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
1477       !G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
1478       !G_VALUE_HOLDS_STRING (&new_value->value) &&
1479       !G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
1480     {
1481       g_warning (G_STRLOC ": value type invalid");
1482       return;
1483     }
1484
1485   name = g_strdup (prop_name);
1486   g_strcanon (name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
1487   name_quark = g_quark_from_string (name);
1488   g_free (name);
1489
1490   qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
1491   if (!qvalue)
1492     {
1493       qvalue = g_slice_new0 (GtkSettingsValuePrivate);
1494       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
1495     }
1496   else
1497     {
1498       g_free (qvalue->public.origin);
1499       g_value_unset (&qvalue->public.value);
1500     }
1501   qvalue->public.origin = g_strdup (new_value->origin);
1502   g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
1503   g_value_copy (&new_value->value, &qvalue->public.value);
1504   qvalue->source = source;
1505   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
1506   if (pspec)
1507     apply_queued_setting (settings, pspec, qvalue);
1508 }
1509
1510 void
1511 gtk_settings_set_property_value (GtkSettings            *settings,
1512                                  const gchar            *prop_name,
1513                                  const GtkSettingsValue *new_value)
1514 {
1515   g_return_if_fail (GTK_SETTINGS (settings));
1516   g_return_if_fail (prop_name != NULL);
1517   g_return_if_fail (new_value != NULL);
1518
1519   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1520                                             GTK_SETTINGS_SOURCE_APPLICATION);
1521 }
1522
1523 void
1524 _gtk_settings_set_property_value_from_rc (GtkSettings            *settings,
1525                                           const gchar            *prop_name,
1526                                           const GtkSettingsValue *new_value)
1527 {
1528   g_return_if_fail (GTK_SETTINGS (settings));
1529   g_return_if_fail (prop_name != NULL);
1530   g_return_if_fail (new_value != NULL);
1531
1532   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1533                                             GTK_SETTINGS_SOURCE_RC_FILE);
1534 }
1535
1536 void
1537 gtk_settings_set_string_property (GtkSettings *settings,
1538                                   const gchar *name,
1539                                   const gchar *v_string,
1540                                   const gchar *origin)
1541 {
1542   GtkSettingsValue svalue = { NULL, { 0, }, };
1543
1544   g_return_if_fail (GTK_SETTINGS (settings));
1545   g_return_if_fail (name != NULL);
1546   g_return_if_fail (v_string != NULL);
1547
1548   svalue.origin = (gchar*) origin;
1549   g_value_init (&svalue.value, G_TYPE_STRING);
1550   g_value_set_static_string (&svalue.value, v_string);
1551   gtk_settings_set_property_value (settings, name, &svalue);
1552   g_value_unset (&svalue.value);
1553 }
1554
1555 void
1556 gtk_settings_set_long_property (GtkSettings *settings,
1557                                 const gchar *name,
1558                                 glong        v_long,
1559                                 const gchar *origin)
1560 {
1561   GtkSettingsValue svalue = { NULL, { 0, }, };
1562
1563   g_return_if_fail (GTK_SETTINGS (settings));
1564   g_return_if_fail (name != NULL);
1565
1566   svalue.origin = (gchar*) origin;
1567   g_value_init (&svalue.value, G_TYPE_LONG);
1568   g_value_set_long (&svalue.value, v_long);
1569   gtk_settings_set_property_value (settings, name, &svalue);
1570   g_value_unset (&svalue.value);
1571 }
1572
1573 void
1574 gtk_settings_set_double_property (GtkSettings *settings,
1575                                   const gchar *name,
1576                                   gdouble      v_double,
1577                                   const gchar *origin)
1578 {
1579   GtkSettingsValue svalue = { NULL, { 0, }, };
1580
1581   g_return_if_fail (GTK_SETTINGS (settings));
1582   g_return_if_fail (name != NULL);
1583
1584   svalue.origin = (gchar*) origin;
1585   g_value_init (&svalue.value, G_TYPE_DOUBLE);
1586   g_value_set_double (&svalue.value, v_double);
1587   gtk_settings_set_property_value (settings, name, &svalue);
1588   g_value_unset (&svalue.value);
1589 }
1590
1591 /**
1592  * gtk_rc_property_parse_color:
1593  * @pspec: a #GParamSpec
1594  * @gstring: the #GString to be parsed
1595  * @property_value: a #GValue which must hold #GdkColor values.
1596  *
1597  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1598  * or gtk_widget_class_install_style_property_parser() which parses a
1599  * color given either by its name or in the form
1600  * <literal>{ red, green, blue }</literal> where %red, %green and
1601  * %blue are integers between 0 and 65535 or floating-point numbers
1602  * between 0 and 1.
1603  *
1604  * Return value: %TRUE if @gstring could be parsed and @property_value
1605  * has been set to the resulting #GdkColor.
1606  **/
1607 gboolean
1608 gtk_rc_property_parse_color (const GParamSpec *pspec,
1609                              const GString    *gstring,
1610                              GValue           *property_value)
1611 {
1612   GdkColor color = { 0, 0, 0, 0, };
1613   GScanner *scanner;
1614   gboolean success;
1615
1616   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1617   g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
1618
1619   scanner = gtk_rc_scanner_new ();
1620   g_scanner_input_text (scanner, gstring->str, gstring->len);
1621   if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
1622       g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
1623     {
1624       g_value_set_boxed (property_value, &color);
1625       success = TRUE;
1626     }
1627   else
1628     success = FALSE;
1629   g_scanner_destroy (scanner);
1630
1631   return success;
1632 }
1633
1634 /**
1635  * gtk_rc_property_parse_enum:
1636  * @pspec: a #GParamSpec
1637  * @gstring: the #GString to be parsed
1638  * @property_value: a #GValue which must hold enum values.
1639  *
1640  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1641  * or gtk_widget_class_install_style_property_parser() which parses a single
1642  * enumeration value.
1643  *
1644  * The enumeration value can be specified by its name, its nickname or
1645  * its numeric value. For consistency with flags parsing, the value
1646  * may be surrounded by parentheses.
1647  *
1648  * Return value: %TRUE if @gstring could be parsed and @property_value
1649  * has been set to the resulting #GEnumValue.
1650  **/
1651 gboolean
1652 gtk_rc_property_parse_enum (const GParamSpec *pspec,
1653                             const GString    *gstring,
1654                             GValue           *property_value)
1655 {
1656   gboolean need_closing_brace = FALSE, success = FALSE;
1657   GScanner *scanner;
1658   GEnumValue *enum_value = NULL;
1659
1660   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1661   g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
1662
1663   scanner = gtk_rc_scanner_new ();
1664   g_scanner_input_text (scanner, gstring->str, gstring->len);
1665
1666   /* we just want to parse _one_ value, but for consistency with flags parsing
1667    * we support optional parenthesis
1668    */
1669   g_scanner_get_next_token (scanner);
1670   if (scanner->token == '(')
1671     {
1672       need_closing_brace = TRUE;
1673       g_scanner_get_next_token (scanner);
1674     }
1675   if (scanner->token == G_TOKEN_IDENTIFIER)
1676     {
1677       GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
1678
1679       enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
1680       if (!enum_value)
1681         enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
1682       if (enum_value)
1683         {
1684           g_value_set_enum (property_value, enum_value->value);
1685           success = TRUE;
1686         }
1687     }
1688   else if (scanner->token == G_TOKEN_INT)
1689     {
1690       g_value_set_enum (property_value, scanner->value.v_int);
1691       success = TRUE;
1692     }
1693   if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
1694     success = FALSE;
1695   if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
1696     success = FALSE;
1697
1698   g_scanner_destroy (scanner);
1699
1700   return success;
1701 }
1702
1703 static guint
1704 parse_flags_value (GScanner    *scanner,
1705                    GFlagsClass *class,
1706                    guint       *number)
1707 {
1708   g_scanner_get_next_token (scanner);
1709   if (scanner->token == G_TOKEN_IDENTIFIER)
1710     {
1711       GFlagsValue *flags_value;
1712
1713       flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
1714       if (!flags_value)
1715         flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
1716       if (flags_value)
1717         {
1718           *number |= flags_value->value;
1719           return G_TOKEN_NONE;
1720         }
1721     }
1722   else if (scanner->token == G_TOKEN_INT)
1723     {
1724       *number |= scanner->value.v_int;
1725       return G_TOKEN_NONE;
1726     }
1727   return G_TOKEN_IDENTIFIER;
1728 }
1729
1730 /**
1731  * gtk_rc_property_parse_flags:
1732  * @pspec: a #GParamSpec
1733  * @gstring: the #GString to be parsed
1734  * @property_value: a #GValue which must hold flags values.
1735  *
1736  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1737  * or gtk_widget_class_install_style_property_parser() which parses flags.
1738  *
1739  * Flags can be specified by their name, their nickname or
1740  * numerically. Multiple flags can be specified in the form
1741  * <literal>"( flag1 | flag2 | ... )"</literal>.
1742  *
1743  * Return value: %TRUE if @gstring could be parsed and @property_value
1744  * has been set to the resulting flags value.
1745  **/
1746 gboolean
1747 gtk_rc_property_parse_flags (const GParamSpec *pspec,
1748                              const GString    *gstring,
1749                              GValue           *property_value)
1750 {
1751   GFlagsClass *class;
1752    gboolean success = FALSE;
1753   GScanner *scanner;
1754
1755   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1756   g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
1757
1758   class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
1759   scanner = gtk_rc_scanner_new ();
1760   g_scanner_input_text (scanner, gstring->str, gstring->len);
1761
1762   /* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
1763   if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
1764       scanner->next_token == G_TOKEN_INT)
1765     {
1766       guint token, flags_value = 0;
1767
1768       token = parse_flags_value (scanner, class, &flags_value);
1769
1770       if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1771         {
1772           success = TRUE;
1773           g_value_set_flags (property_value, flags_value);
1774         }
1775
1776     }
1777   else if (g_scanner_get_next_token (scanner) == '(')
1778     {
1779       guint token, flags_value = 0;
1780
1781       /* parse first value */
1782       token = parse_flags_value (scanner, class, &flags_value);
1783
1784       /* parse nth values, preceeded by '|' */
1785       while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
1786         token = parse_flags_value (scanner, class, &flags_value);
1787
1788       /* done, last token must have closed expression */
1789       if (token == G_TOKEN_NONE && scanner->token == ')' &&
1790           g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1791         {
1792           g_value_set_flags (property_value, flags_value);
1793           success = TRUE;
1794         }
1795     }
1796   g_scanner_destroy (scanner);
1797
1798   return success;
1799 }
1800
1801 static gboolean
1802 get_braced_int (GScanner *scanner,
1803                 gboolean  first,
1804                 gboolean  last,
1805                 gint     *value)
1806 {
1807   if (first)
1808     {
1809       g_scanner_get_next_token (scanner);
1810       if (scanner->token != '{')
1811         return FALSE;
1812     }
1813
1814   g_scanner_get_next_token (scanner);
1815   if (scanner->token != G_TOKEN_INT)
1816     return FALSE;
1817
1818   *value = scanner->value.v_int;
1819
1820   if (last)
1821     {
1822       g_scanner_get_next_token (scanner);
1823       if (scanner->token != '}')
1824         return FALSE;
1825     }
1826   else
1827     {
1828       g_scanner_get_next_token (scanner);
1829       if (scanner->token != ',')
1830         return FALSE;
1831     }
1832
1833   return TRUE;
1834 }
1835
1836 /**
1837  * gtk_rc_property_parse_requisition:
1838  * @pspec: a #GParamSpec
1839  * @gstring: the #GString to be parsed
1840  * @property_value: a #GValue which must hold boxed values.
1841  *
1842  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1843  * or gtk_widget_class_install_style_property_parser() which parses a
1844  * requisition in the form
1845  * <literal>"{ width, height }"</literal> for integers %width and %height.
1846  *
1847  * Return value: %TRUE if @gstring could be parsed and @property_value
1848  * has been set to the resulting #GtkRequisition.
1849  **/
1850 gboolean
1851 gtk_rc_property_parse_requisition  (const GParamSpec *pspec,
1852                                     const GString    *gstring,
1853                                     GValue           *property_value)
1854 {
1855   GtkRequisition requisition;
1856   GScanner *scanner;
1857   gboolean success = FALSE;
1858
1859   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1860   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1861
1862   scanner = gtk_rc_scanner_new ();
1863   g_scanner_input_text (scanner, gstring->str, gstring->len);
1864
1865   if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
1866       get_braced_int (scanner, FALSE, TRUE, &requisition.height))
1867     {
1868       g_value_set_boxed (property_value, &requisition);
1869       success = TRUE;
1870     }
1871
1872   g_scanner_destroy (scanner);
1873
1874   return success;
1875 }
1876
1877 /**
1878  * gtk_rc_property_parse_border:
1879  * @pspec: a #GParamSpec
1880  * @gstring: the #GString to be parsed
1881  * @property_value: a #GValue which must hold boxed values.
1882  *
1883  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1884  * or gtk_widget_class_install_style_property_parser() which parses
1885  * borders in the form
1886  * <literal>"{ left, right, top, bottom }"</literal> for integers
1887  * %left, %right, %top and %bottom.
1888  *
1889  * Return value: %TRUE if @gstring could be parsed and @property_value
1890  * has been set to the resulting #GtkBorder.
1891  **/
1892 gboolean
1893 gtk_rc_property_parse_border (const GParamSpec *pspec,
1894                               const GString    *gstring,
1895                               GValue           *property_value)
1896 {
1897   GtkBorder border;
1898   GScanner *scanner;
1899   gboolean success = FALSE;
1900
1901   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1902   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1903
1904   scanner = gtk_rc_scanner_new ();
1905   g_scanner_input_text (scanner, gstring->str, gstring->len);
1906
1907   if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
1908       get_braced_int (scanner, FALSE, FALSE, &border.right) &&
1909       get_braced_int (scanner, FALSE, FALSE, &border.top) &&
1910       get_braced_int (scanner, FALSE, TRUE, &border.bottom))
1911     {
1912       g_value_set_boxed (property_value, &border);
1913       success = TRUE;
1914     }
1915
1916   g_scanner_destroy (scanner);
1917
1918   return success;
1919 }
1920
1921 void
1922 _gtk_settings_handle_event (GdkEventSetting *event)
1923 {
1924   GtkSettings *settings;
1925   GParamSpec *pspec;
1926   guint property_id;
1927
1928   settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
1929   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name);
1930
1931   if (pspec)
1932     {
1933       property_id = pspec->param_id;
1934
1935       if (property_id == PROP_COLOR_SCHEME)
1936         {
1937           GValue value = { 0, };
1938
1939           g_value_init (&value, G_TYPE_STRING);
1940           if (!gdk_screen_get_setting (settings->screen, pspec->name, &value))
1941             g_value_set_static_string (&value, "");
1942           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
1943           g_value_unset (&value);
1944         }
1945       g_object_notify (G_OBJECT (settings), pspec->name);
1946    }
1947 }
1948
1949 static void
1950 reset_rc_values_foreach (GQuark    key_id,
1951                          gpointer  data,
1952                          gpointer  user_data)
1953 {
1954   GtkSettingsValuePrivate *qvalue = data;
1955   GSList **to_reset = user_data;
1956
1957   if (qvalue->source == GTK_SETTINGS_SOURCE_RC_FILE)
1958     *to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
1959 }
1960
1961 void
1962 _gtk_settings_reset_rc_values (GtkSettings *settings)
1963 {
1964   GSList *to_reset = NULL;
1965   GSList *tmp_list;
1966   GParamSpec **pspecs, **p;
1967   gint i;
1968
1969   /* Remove any queued settings
1970    */
1971   g_datalist_foreach (&settings->queued_settings,
1972                       reset_rc_values_foreach,
1973                       &to_reset);
1974
1975   for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
1976     {
1977       GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
1978       g_datalist_id_remove_data (&settings->queued_settings, key_id);
1979     }
1980
1981    g_slist_free (to_reset);
1982
1983   /* Now reset the active settings
1984    */
1985   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
1986   i = 0;
1987
1988   g_object_freeze_notify (G_OBJECT (settings));
1989   for (p = pspecs; *p; p++)
1990     {
1991       if (settings->property_values[i].source == GTK_SETTINGS_SOURCE_RC_FILE)
1992         {
1993           GParamSpec *pspec = *p;
1994
1995           g_param_value_set_default (pspec, &settings->property_values[i].value);
1996           g_object_notify (G_OBJECT (settings), pspec->name);
1997         }
1998       i++;
1999     }
2000   g_object_thaw_notify (G_OBJECT (settings));
2001   g_free (pspecs);
2002 }
2003
2004 static void
2005 settings_update_double_click (GtkSettings *settings)
2006 {
2007   if (gdk_screen_get_number (settings->screen) == 0)
2008     {
2009       GdkDisplay *display = gdk_screen_get_display (settings->screen);
2010       gint double_click_time;
2011       gint double_click_distance;
2012
2013       g_object_get (settings,
2014                     "gtk-double-click-time", &double_click_time,
2015                     "gtk-double-click-distance", &double_click_distance,
2016                     NULL);
2017
2018       gdk_display_set_double_click_time (display, double_click_time);
2019       gdk_display_set_double_click_distance (display, double_click_distance);
2020     }
2021 }
2022
2023 static void
2024 settings_update_modules (GtkSettings *settings)
2025 {
2026   gchar *modules;
2027
2028   g_object_get (settings,
2029                 "gtk-modules", &modules,
2030                 NULL);
2031
2032   _gtk_modules_settings_changed (settings, modules);
2033
2034   g_free (modules);
2035 }
2036
2037 #ifdef GDK_WINDOWING_X11
2038 static void
2039 settings_update_cursor_theme (GtkSettings *settings)
2040 {
2041   GdkDisplay *display = gdk_screen_get_display (settings->screen);
2042   gchar *theme = NULL;
2043   gint size = 0;
2044
2045   g_object_get (settings,
2046                 "gtk-cursor-theme-name", &theme,
2047                 "gtk-cursor-theme-size", &size,
2048                 NULL);
2049
2050   gdk_x11_display_set_cursor_theme (display, theme, size);
2051
2052   g_free (theme);
2053 }
2054
2055 static void
2056 settings_update_font_options (GtkSettings *settings)
2057 {
2058   gint hinting;
2059   gchar *hint_style_str;
2060   cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_NONE;
2061   gint antialias;
2062   cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_GRAY;
2063   gchar *rgba_str;
2064   cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
2065   cairo_font_options_t *options;
2066
2067   g_object_get (settings,
2068                 "gtk-xft-antialias", &antialias,
2069                 "gtk-xft-hinting", &hinting,
2070                 "gtk-xft-hintstyle", &hint_style_str,
2071                 "gtk-xft-rgba", &rgba_str,
2072                 NULL);
2073
2074   options = cairo_font_options_create ();
2075
2076   cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
2077
2078   if (hinting >= 0 && !hinting)
2079     {
2080       hint_style = CAIRO_HINT_STYLE_NONE;
2081     }
2082   else if (hint_style_str)
2083     {
2084       if (strcmp (hint_style_str, "hintnone") == 0)
2085         hint_style = CAIRO_HINT_STYLE_NONE;
2086       else if (strcmp (hint_style_str, "hintslight") == 0)
2087         hint_style = CAIRO_HINT_STYLE_SLIGHT;
2088       else if (strcmp (hint_style_str, "hintmedium") == 0)
2089         hint_style = CAIRO_HINT_STYLE_MEDIUM;
2090       else if (strcmp (hint_style_str, "hintfull") == 0)
2091         hint_style = CAIRO_HINT_STYLE_FULL;
2092     }
2093
2094   g_free (hint_style_str);
2095
2096   cairo_font_options_set_hint_style (options, hint_style);
2097
2098   if (rgba_str)
2099     {
2100       if (strcmp (rgba_str, "rgb") == 0)
2101         subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
2102       else if (strcmp (rgba_str, "bgr") == 0)
2103         subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
2104       else if (strcmp (rgba_str, "vrgb") == 0)
2105         subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
2106       else if (strcmp (rgba_str, "vbgr") == 0)
2107         subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
2108
2109       g_free (rgba_str);
2110     }
2111
2112   cairo_font_options_set_subpixel_order (options, subpixel_order);
2113
2114   if (antialias >= 0 && !antialias)
2115     antialias_mode = CAIRO_ANTIALIAS_NONE;
2116   else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
2117     antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
2118   else if (antialias >= 0)
2119     antialias_mode = CAIRO_ANTIALIAS_GRAY;
2120
2121   cairo_font_options_set_antialias (options, antialias_mode);
2122
2123   gdk_screen_set_font_options (settings->screen, options);
2124
2125   cairo_font_options_destroy (options);
2126 }
2127
2128 #ifdef GDK_WINDOWING_X11
2129 static gboolean
2130 settings_update_fontconfig (GtkSettings *settings)
2131 {
2132   static guint    last_update_timestamp;
2133   static gboolean last_update_needed;
2134
2135   guint timestamp;
2136
2137   g_object_get (settings,
2138                 "gtk-fontconfig-timestamp", &timestamp,
2139                 NULL);
2140
2141   /* if timestamp is the same as last_update_timestamp, we already have
2142    * updated fontconig on this timestamp (another screen requested it perhaps?),
2143    * just return the cached result.*/
2144
2145   if (timestamp != last_update_timestamp)
2146     {
2147       PangoFontMap *fontmap = pango_cairo_font_map_get_default ();
2148       gboolean update_needed = FALSE;
2149
2150       /* bug 547680 */
2151       if (PANGO_IS_FC_FONT_MAP (fontmap) && !FcConfigUptoDate (NULL))
2152         {
2153           pango_fc_font_map_cache_clear (PANGO_FC_FONT_MAP (fontmap));
2154           if (FcInitReinitialize ())
2155             update_needed = TRUE;
2156         }
2157
2158       last_update_timestamp = timestamp;
2159       last_update_needed = update_needed;
2160     }
2161
2162   return last_update_needed;
2163 }
2164 #endif /* GDK_WINDOWING_X11 */
2165
2166 static void
2167 settings_update_resolution (GtkSettings *settings)
2168 {
2169   gint dpi_int;
2170   double dpi;
2171
2172   g_object_get (settings,
2173                 "gtk-xft-dpi", &dpi_int,
2174                 NULL);
2175
2176   if (dpi_int > 0)
2177     dpi = dpi_int / 1024.;
2178   else
2179     dpi = -1.;
2180
2181   gdk_screen_set_resolution (settings->screen, dpi);
2182 }
2183 #endif
2184
2185 typedef struct {
2186   GHashTable *color_hash;
2187   GHashTable *tables[GTK_SETTINGS_SOURCE_APPLICATION + 1];
2188   gchar *lastentry[GTK_SETTINGS_SOURCE_APPLICATION + 1];
2189 } ColorSchemeData;
2190
2191 static void
2192 color_scheme_data_free (ColorSchemeData *data)
2193 {
2194   gint i;
2195
2196   g_hash_table_unref (data->color_hash);
2197
2198   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
2199     {
2200       if (data->tables[i])
2201         g_hash_table_unref (data->tables[i]);
2202       g_free (data->lastentry[i]);
2203     }
2204
2205   g_slice_free (ColorSchemeData, data);
2206 }
2207
2208 static void
2209 settings_update_color_scheme (GtkSettings *settings)
2210 {
2211   if (!g_object_get_data (G_OBJECT (settings), "gtk-color-scheme"))
2212     {
2213       ColorSchemeData *data;
2214       GValue value = { 0, };
2215
2216       data = g_slice_new0 (ColorSchemeData);
2217       data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
2218                                                 (GDestroyNotify) gdk_color_free);
2219       g_object_set_data_full (G_OBJECT (settings), "gtk-color-scheme",
2220                               data, (GDestroyNotify) color_scheme_data_free);
2221
2222       g_value_init (&value, G_TYPE_STRING);
2223       if (gdk_screen_get_setting (settings->screen, "gtk-color-scheme", &value))
2224         {
2225           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
2226           g_value_unset (&value);
2227         }
2228    }
2229 }
2230
2231 static gboolean
2232 add_color_to_hash (gchar      *name,
2233                    GdkColor   *color,
2234                    GHashTable *target)
2235 {
2236   GdkColor *old;
2237
2238   old = g_hash_table_lookup (target, name);
2239   if (!old || !gdk_color_equal (old, color))
2240     {
2241       g_hash_table_insert (target, g_strdup (name), gdk_color_copy (color));
2242
2243       return TRUE;
2244     }
2245
2246   return FALSE;
2247 }
2248
2249 static gboolean
2250 add_colors_to_hash_from_string (GHashTable  *hash,
2251                                 const gchar *colors)
2252 {
2253   gchar *s, *p, *name;
2254   GdkColor color;
2255   gboolean changed = FALSE;
2256   gchar *copy;
2257
2258   copy = g_strdup (colors);
2259   s = copy;
2260   while (s && *s)
2261     {
2262       name = s;
2263       p = strchr (s, ':');
2264       if (p)
2265         {
2266           *p = '\0';
2267           p++;
2268         }
2269       else
2270         break;
2271
2272       while (*p == ' ')
2273         p++;
2274
2275       s = p;
2276       while (*s)
2277         {
2278           if (*s == '\n' || *s == ';')
2279             {
2280               *s = '\0';
2281               s++;
2282               break;
2283             }
2284           s++;
2285         }
2286
2287       if (gdk_color_parse (p, &color))
2288         changed |= add_color_to_hash (name, &color, hash);
2289     }
2290
2291   g_free (copy);
2292
2293   return changed;
2294 }
2295
2296 static gboolean
2297 update_color_hash (ColorSchemeData   *data,
2298                    const gchar       *str,
2299                    GtkSettingsSource  source)
2300 {
2301   gboolean changed = FALSE;
2302   gint i;
2303   GHashTable *old_hash;
2304   GHashTableIter iter;
2305   gpointer name;
2306   gpointer color;
2307
2308   if ((str == NULL || *str == '\0') &&
2309       (data->lastentry[source] == NULL || data->lastentry[source][0] == '\0'))
2310     return FALSE;
2311
2312   if (str && data->lastentry[source] && strcmp (str, data->lastentry[source]) == 0)
2313     return FALSE;
2314
2315   /* For the RC_FILE source we merge the values rather than over-writing
2316    * them, since multiple rc files might define independent sets of colors
2317    */
2318   if ((source != GTK_SETTINGS_SOURCE_RC_FILE) &&
2319       data->tables[source] && g_hash_table_size (data->tables[source]) > 0)
2320     {
2321       g_hash_table_unref (data->tables[source]);
2322       data->tables[source] = NULL;
2323       changed = TRUE; /* We can't rely on the code below since str might be "" */
2324     }
2325
2326   if (data->tables[source] == NULL)
2327     data->tables[source] = g_hash_table_new_full (g_str_hash, g_str_equal,
2328                                                   g_free,
2329                                                   (GDestroyNotify) gdk_color_free);
2330
2331   g_free (data->lastentry[source]);
2332   data->lastentry[source] = g_strdup (str);
2333
2334   changed |= add_colors_to_hash_from_string (data->tables[source], str);
2335
2336   if (!changed)
2337     return FALSE;
2338
2339   /* Rebuild the merged hash table. */
2340   if (data->color_hash)
2341     {
2342       old_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
2343                                         (GDestroyNotify) gdk_color_free);
2344
2345       g_hash_table_iter_init (&iter, data->color_hash);
2346       while (g_hash_table_iter_next (&iter, &name, &color))
2347         {
2348           g_hash_table_insert (old_hash, name, color);
2349           g_hash_table_iter_steal (&iter);
2350         }
2351     }
2352   else
2353     {
2354       old_hash = NULL;
2355     }
2356
2357   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
2358     {
2359       if (data->tables[i])
2360         g_hash_table_foreach (data->tables[i], (GHFunc) add_color_to_hash,
2361                               data->color_hash);
2362     }
2363
2364   if (old_hash)
2365     {
2366       /* now check if the merged hash has changed */
2367       changed = FALSE;
2368       if (g_hash_table_size (old_hash) != g_hash_table_size (data->color_hash))
2369         changed = TRUE;
2370       else
2371         {
2372           GHashTableIter iter;
2373           gpointer key, value, new_value;
2374
2375           g_hash_table_iter_init (&iter, old_hash);
2376           while (g_hash_table_iter_next (&iter, &key, &value))
2377             {
2378               new_value = g_hash_table_lookup (data->color_hash, key);
2379               if (!new_value || !gdk_color_equal (value, new_value))
2380                 {
2381                   changed = TRUE;
2382                   break;
2383                 }
2384             }
2385         }
2386
2387       g_hash_table_unref (old_hash);
2388     }
2389   else
2390     changed = TRUE;
2391
2392   return changed;
2393 }
2394
2395 static void
2396 merge_color_scheme (GtkSettings       *settings,
2397                     const GValue      *value,
2398                     GtkSettingsSource  source)
2399 {
2400   ColorSchemeData *data;
2401   const gchar *colors;
2402
2403   g_object_freeze_notify (G_OBJECT (settings));
2404
2405   colors = g_value_get_string (value);
2406
2407   settings_update_color_scheme (settings);
2408
2409   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2410                                                 "gtk-color-scheme");
2411
2412   if (update_color_hash (data, colors, source))
2413     g_object_notify (G_OBJECT (settings), "color-hash");
2414
2415   g_object_thaw_notify (G_OBJECT (settings));
2416 }
2417
2418 static GHashTable *
2419 get_color_hash (GtkSettings *settings)
2420 {
2421   ColorSchemeData *data;
2422
2423   settings_update_color_scheme (settings);
2424
2425   data = (ColorSchemeData *)g_object_get_data (G_OBJECT (settings),
2426                                                "gtk-color-scheme");
2427
2428   return data->color_hash;
2429 }
2430
2431 static void
2432 append_color_scheme (gpointer key,
2433                      gpointer value,
2434                      gpointer data)
2435 {
2436   gchar *name = (gchar *)key;
2437   GdkColor *color = (GdkColor *)value;
2438   GString *string = (GString *)data;
2439
2440   g_string_append_printf (string, "%s: #%04x%04x%04x\n",
2441                           name, color->red, color->green, color->blue);
2442 }
2443
2444 static gchar *
2445 get_color_scheme (GtkSettings *settings)
2446 {
2447   ColorSchemeData *data;
2448   GString *string;
2449
2450   settings_update_color_scheme (settings);
2451
2452   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2453                                                 "gtk-color-scheme");
2454
2455   string = g_string_new ("");
2456
2457   g_hash_table_foreach (data->color_hash, append_color_scheme, string);
2458
2459   return g_string_free (string, FALSE);
2460 }
2461
2462
2463 #define __GTK_SETTINGS_C__
2464 #include "gtkaliasdef.c"