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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 2000 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free
  16  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 #include <config.h>
  20
  21 #include <string.h>
  22
  23 #include "gtkmodules.h"
  24 #include "gtksettings.h"
  25 #include "gtkrc.h"
  26 #include "gtkintl.h"
  27 #include "gtkwidget.h"
  28 #include "gtkprivate.h"
  29 #include "gtkalias.h"
  30
  31 #ifdef GDK_WINDOWING_X11
  32 #include "x11/gdkx.h"
  33 #endif
  34
  35 #define DEFAULT_TIMEOUT_INITIAL 200
  36 #define DEFAULT_TIMEOUT_REPEAT   20
  37 #define DEFAULT_TIMEOUT_EXPAND  500
  38
  39 typedef struct _GtkSettingsValuePrivate GtkSettingsValuePrivate;
  40
  41 typedef enum
  42 {
  43   GTK_SETTINGS_SOURCE_DEFAULT,
  44   GTK_SETTINGS_SOURCE_RC_FILE,
  45   GTK_SETTINGS_SOURCE_XSETTING,
  46   GTK_SETTINGS_SOURCE_APPLICATION
  47 } GtkSettingsSource;
  48
  49 struct _GtkSettingsValuePrivate
  50 {
  51   GtkSettingsValue public;
  52   GtkSettingsSource source;
  53 };
  54
  55 struct _GtkSettingsPropertyValue
  56 {
  57   GValue value;
  58   GtkSettingsSource source;
  59 };
  60
  61 enum {
  62   PROP_0,
  63   PROP_DOUBLE_CLICK_TIME,
  64   PROP_DOUBLE_CLICK_DISTANCE,
  65   PROP_CURSOR_BLINK,
  66   PROP_CURSOR_BLINK_TIME,
  67   PROP_CURSOR_BLINK_TIMEOUT,
  68   PROP_SPLIT_CURSOR,
  69   PROP_THEME_NAME,
  70   PROP_ICON_THEME_NAME,
  71   PROP_FALLBACK_ICON_THEME,
  72   PROP_KEY_THEME_NAME,
  73   PROP_MENU_BAR_ACCEL,
  74   PROP_DND_DRAG_THRESHOLD,
  75   PROP_FONT_NAME,
  76   PROP_ICON_SIZES,
  77   PROP_MODULES,
  78 #ifdef GDK_WINDOWING_X11
  79   PROP_XFT_ANTIALIAS,
  80   PROP_XFT_HINTING,
  81   PROP_XFT_HINTSTYLE,
  82   PROP_XFT_RGBA,
  83   PROP_XFT_DPI,
  84   PROP_CURSOR_THEME_NAME,
  85   PROP_CURSOR_THEME_SIZE,
  86 #endif
  87   PROP_ALTERNATIVE_BUTTON_ORDER,
  88   PROP_ALTERNATIVE_SORT_ARROWS,
  89   PROP_SHOW_INPUT_METHOD_MENU,
  90   PROP_SHOW_UNICODE_MENU,
  91   PROP_TIMEOUT_INITIAL,
  92   PROP_TIMEOUT_REPEAT,
  93   PROP_TIMEOUT_EXPAND,
  94   PROP_COLOR_SCHEME,
  95   PROP_ENABLE_ANIMATIONS,
  96   PROP_TOUCHSCREEN_MODE,
  97   PROP_TOOLTIP_TIMEOUT,
  98   PROP_TOOLTIP_BROWSE_TIMEOUT,
  99   PROP_TOOLTIP_BROWSE_MODE_TIMEOUT,
 100   PROP_KEYNAV_CURSOR_ONLY,
 101   PROP_KEYNAV_WRAP_AROUND,
 102   PROP_ERROR_BELL,
 103   PROP_COLOR_HASH,
 104   PROP_FILE_CHOOSER_BACKEND,
 105   PROP_PRINT_BACKENDS,
 106   PROP_PRINT_PREVIEW_COMMAND,
 107   PROP_ENABLE_MNEMONICS,
 108   PROP_ENABLE_ACCELS
 109 };
 110
 111
 112 /* --- prototypes --- */
 113 static void     gtk_settings_finalize            (GObject               *object);
 114 static void     gtk_settings_get_property        (GObject               *object,
 115                                                   guint                  property_id,
 116                                                   GValue                *value,
 117                                                   GParamSpec            *pspec);
 118 static void     gtk_settings_set_property        (GObject               *object,
 119                                                   guint                  property_id,
 120                                                   const GValue          *value,
 121                                                   GParamSpec            *pspec);
 122 static void     gtk_settings_notify              (GObject               *object,
 123                                                   GParamSpec            *pspec);
 124 static guint    settings_install_property_parser (GtkSettingsClass      *class,
 125                                                   GParamSpec            *pspec,
 126                                                   GtkRcPropertyParser    parser);
 127 static void    settings_update_double_click      (GtkSettings           *settings);
 128 static void    settings_update_modules           (GtkSettings           *settings);
 129
 130 #ifdef GDK_WINDOWING_X11
 131 static void    settings_update_cursor_theme      (GtkSettings           *settings);
 132 static void    settings_update_resolution        (GtkSettings           *settings);
 133 static void    settings_update_font_options      (GtkSettings           *settings);
 134 #endif
 135 static void    settings_update_color_scheme      (GtkSettings *settings);
 136
 137 static void    merge_color_scheme                (GtkSettings           *settings,
 138                                                   const GValue          *value,
 139                                                   GtkSettingsSource      source);
 140 static gchar  *get_color_scheme                  (GtkSettings           *settings);
 141 static GHashTable *get_color_hash                (GtkSettings           *settings);
 142
 143
 144 /* --- variables --- */
 145 static GQuark            quark_property_parser = 0;
 146 static GSList           *object_list = NULL;
 147 static guint             class_n_properties = 0;
 148
 149
 150 G_DEFINE_TYPE (GtkSettings, gtk_settings, G_TYPE_OBJECT)
 151
 152 /* --- functions --- */
 153 static void
 154 gtk_settings_init (GtkSettings *settings)
 155 {
 156   GParamSpec **pspecs, **p;
 157   guint i = 0;
 158
 159   g_datalist_init (&settings->queued_settings);
 160   object_list = g_slist_prepend (object_list, settings);
 161
 162   /* build up property array for all yet existing properties and queue
 163    * notification for them (at least notification for internal properties
 164    * will instantly be caught)
 165    */
 166   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
 167   for (p = pspecs; *p; p++)
 168     if ((*p)->owner_type == G_OBJECT_TYPE (settings))
 169       i++;
 170   settings->property_values = g_new0 (GtkSettingsPropertyValue, i);
 171   i = 0;
 172   g_object_freeze_notify (G_OBJECT (settings));
 173   for (p = pspecs; *p; p++)
 174     {
 175       GParamSpec *pspec = *p;
 176
 177       if (pspec->owner_type != G_OBJECT_TYPE (settings))
 178         continue;
 179       g_value_init (&settings->property_values[i].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 180       g_param_value_set_default (pspec, &settings->property_values[i].value);
 181       g_object_notify (G_OBJECT (settings), pspec->name);
 182       settings->property_values[i].source = GTK_SETTINGS_SOURCE_DEFAULT;
 183       i++;
 184     }
 185   g_object_thaw_notify (G_OBJECT (settings));
 186   g_free (pspecs);
 187 }
 188
 189 static void
 190 gtk_settings_class_init (GtkSettingsClass *class)
 191 {
 192   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 193   guint result;
 194
 195   gobject_class->finalize = gtk_settings_finalize;
 196   gobject_class->get_property = gtk_settings_get_property;
 197   gobject_class->set_property = gtk_settings_set_property;
 198   gobject_class->notify = gtk_settings_notify;
 199
 200   quark_property_parser = g_quark_from_static_string ("gtk-rc-property-parser");
 201   result = settings_install_property_parser (class,
 202                                              g_param_spec_int ("gtk-double-click-time",
 203                                                                P_("Double Click Time"),
 204                                                                P_("Maximum time allowed between two clicks for them to be considered a double click (in milliseconds)"),
 205                                                                0, G_MAXINT, 250,
 206                                                                GTK_PARAM_READWRITE),
 207                                              NULL);
 208   g_assert (result == PROP_DOUBLE_CLICK_TIME);
 209   result = settings_install_property_parser (class,
 210                                              g_param_spec_int ("gtk-double-click-distance",
 211                                                                P_("Double Click Distance"),
 212                                                                P_("Maximum distance allowed between two clicks for them to be considered a double click (in pixels)"),
 213                                                                0, G_MAXINT, 5,
 214                                                                GTK_PARAM_READWRITE),
 215                                              NULL);
 216   g_assert (result == PROP_DOUBLE_CLICK_DISTANCE);
 217
 218   /**
 219    * GtkSettings:gtk-cursor-blink:
 220    *
 221    * Whether the cursor should blink.
 222    *
 223    * Also see the gtk-cursor-blink-timeout setting, which allows
 224    * more flexible control over cursor blinking.
 225    */
 226   result = settings_install_property_parser (class,
 227                                              g_param_spec_boolean ("gtk-cursor-blink",
 228                                                                    P_("Cursor Blink"),
 229                                                                    P_("Whether the cursor should blink"),
 230                                                                    TRUE,
 231                                                                    GTK_PARAM_READWRITE),
 232                                              NULL);
 233   g_assert (result == PROP_CURSOR_BLINK);
 234   result = settings_install_property_parser (class,
 235                                              g_param_spec_int ("gtk-cursor-blink-time",
 236                                                                P_("Cursor Blink Time"),
 237                                                                P_("Length of the cursor blink cycle, in milliseconds"),
 238                                                                100, G_MAXINT, 1200,
 239                                                                GTK_PARAM_READWRITE),
 240                                              NULL);
 241   g_assert (result == PROP_CURSOR_BLINK_TIME);
 242
 243   /**
 244    * GtkSettings:gtk-cursor-blink-timeout:
 245    *
 246    * Time after which the cursor stops blinking, in seconds.
 247    * The timer is reset after each user interaction.
 248    *
 249    * Setting this to zero has the same effect as setting
 250    * gtk-cursor-blinks to %FALSE.
 251    *
 252    * Since: 2.12
 253    */
 254   result = settings_install_property_parser (class,
 255                                              g_param_spec_int ("gtk-cursor-blink-timeout",
 256                                                                P_("Cursor Blink Timeout"),
 257                                                                P_("Time after which the cursor stops blinking, in seconds"),
 258                                                                1, G_MAXINT, G_MAXINT,
 259                                                                GTK_PARAM_READWRITE),
 260                                              NULL);
 261   g_assert (result == PROP_CURSOR_BLINK_TIMEOUT);
 262   result = settings_install_property_parser (class,
 263                                              g_param_spec_boolean ("gtk-split-cursor",
 264                                                                    P_("Split Cursor"),
 265                                                                    P_("Whether two cursors should be displayed for mixed left-to-right and right-to-left text"),
 266                                                                    TRUE,
 267                                                                    GTK_PARAM_READWRITE),
 268                                              NULL);
 269   g_assert (result == PROP_SPLIT_CURSOR);
 270   result = settings_install_property_parser (class,
 271                                              g_param_spec_string ("gtk-theme-name",
 272                                                                    P_("Theme Name"),
 273                                                                    P_("Name of theme RC file to load"),
 274                                                                   "Raleigh",
 275                                                                   GTK_PARAM_READWRITE),
 276                                              NULL);
 277   g_assert (result == PROP_THEME_NAME);
 278
 279   result = settings_install_property_parser (class,
 280                                              g_param_spec_string ("gtk-icon-theme-name",
 281                                                                   P_("Icon Theme Name"),
 282                                                                   P_("Name of icon theme to use"),
 283                                                                   "hicolor",
 284                                                                   GTK_PARAM_READWRITE),
 285                                              NULL);
 286   g_assert (result == PROP_ICON_THEME_NAME);
 287
 288   result = settings_install_property_parser (class,
 289                                              g_param_spec_string ("gtk-fallback-icon-theme",
 290                                                                   P_("Fallback Icon Theme Name"),
 291                                                                   P_("Name of a icon theme to fall back to"),
 292                                                                   NULL,
 293                                                                   GTK_PARAM_READWRITE),
 294                                              NULL);
 295   g_assert (result == PROP_FALLBACK_ICON_THEME);
 296
 297   result = settings_install_property_parser (class,
 298                                              g_param_spec_string ("gtk-key-theme-name",
 299                                                                   P_("Key Theme Name"),
 300                                                                   P_("Name of key theme RC file to load"),
 301                                                                   NULL,
 302                                                                   GTK_PARAM_READWRITE),
 303                                              NULL);
 304   g_assert (result == PROP_KEY_THEME_NAME);
 305
 306   result = settings_install_property_parser (class,
 307                                              g_param_spec_string ("gtk-menu-bar-accel",
 308                                                                   P_("Menu bar accelerator"),
 309                                                                   P_("Keybinding to activate the menu bar"),
 310                                                                   "F10",
 311                                                                   GTK_PARAM_READWRITE),
 312                                              NULL);
 313   g_assert (result == PROP_MENU_BAR_ACCEL);
 314
 315   result = settings_install_property_parser (class,
 316                                              g_param_spec_int ("gtk-dnd-drag-threshold",
 317                                                                P_("Drag threshold"),
 318                                                                P_("Number of pixels the cursor can move before dragging"),
 319                                                                1, G_MAXINT, 8,
 320                                                                GTK_PARAM_READWRITE),
 321                                              NULL);
 322   g_assert (result == PROP_DND_DRAG_THRESHOLD);
 323
 324   result = settings_install_property_parser (class,
 325                                              g_param_spec_string ("gtk-font-name",
 326                                                                    P_("Font Name"),
 327                                                                    P_("Name of default font to use"),
 328                                                                   "Sans 10",
 329                                                                   GTK_PARAM_READWRITE),
 330                                              NULL);
 331   g_assert (result == PROP_FONT_NAME);
 332
 333   result = settings_install_property_parser (class,
 334                                              g_param_spec_string ("gtk-icon-sizes",
 335                                                                    P_("Icon Sizes"),
 336                                                                    P_("List of icon sizes (gtk-menu=16,16:gtk-button=20,20..."),
 337                                                                   NULL,
 338                                                                   GTK_PARAM_READWRITE),
 339                                              NULL);
 340   g_assert (result == PROP_ICON_SIZES);
 341
 342   result = settings_install_property_parser (class,
 343                                              g_param_spec_string ("gtk-modules",
 344                                                                   P_("GTK Modules"),
 345                                                                   P_("List of currently active GTK modules"),
 346                                                                   NULL,
 347                                                                   GTK_PARAM_READWRITE),
 348                                              NULL);
 349   g_assert (result == PROP_MODULES);
 350
 351 #ifdef GDK_WINDOWING_X11
 352   result = settings_install_property_parser (class,
 353                                              g_param_spec_int ("gtk-xft-antialias",
 354                                                                P_("Xft Antialias"),
 355                                                                P_("Whether to antialias Xft fonts; 0=no, 1=yes, -1=default"),
 356                                                                -1, 1, -1,
 357                                                                GTK_PARAM_READWRITE),
 358                                              NULL);
 359
 360   g_assert (result == PROP_XFT_ANTIALIAS);
 361
 362   result = settings_install_property_parser (class,
 363                                              g_param_spec_int ("gtk-xft-hinting",
 364                                                                P_("Xft Hinting"),
 365                                                                P_("Whether to hint Xft fonts; 0=no, 1=yes, -1=default"),
 366                                                                -1, 1, -1,
 367                                                                GTK_PARAM_READWRITE),
 368                                              NULL);
 369
 370   g_assert (result == PROP_XFT_HINTING);
 371
 372   result = settings_install_property_parser (class,
 373                                              g_param_spec_string ("gtk-xft-hintstyle",
 374                                                                   P_("Xft Hint Style"),
 375                                                                   P_("What degree of hinting to use; hintnone, hintslight, hintmedium, or hintfull"),
 376                                                                   NULL,
 377                                                                   GTK_PARAM_READWRITE),
 378                                               NULL);
 379
 380   g_assert (result == PROP_XFT_HINTSTYLE);
 381
 382   result = settings_install_property_parser (class,
 383                                              g_param_spec_string ("gtk-xft-rgba",
 384                                                                   P_("Xft RGBA"),
 385                                                                   P_("Type of subpixel antialiasing; none, rgb, bgr, vrgb, vbgr"),
 386                                                                   NULL,
 387                                                                   GTK_PARAM_READWRITE),
 388                                              NULL);
 389
 390   g_assert (result == PROP_XFT_RGBA);
 391
 392   result = settings_install_property_parser (class,
 393                                              g_param_spec_int ("gtk-xft-dpi",
 394                                                                P_("Xft DPI"),
 395                                                                P_("Resolution for Xft, in 1024 * dots/inch. -1 to use default value"),
 396                                                                -1, 1024*1024, -1,
 397                                                                GTK_PARAM_READWRITE),
 398                                              NULL);
 399
 400   g_assert (result == PROP_XFT_DPI);
 401
 402   result = settings_install_property_parser (class,
 403                                              g_param_spec_string ("gtk-cursor-theme-name",
 404                                                                   P_("Cursor theme name"),
 405                                                                   P_("Name of the cursor theme to use, or NULL to use the default theme"),
 406                                                                   NULL,
 407                                                                   GTK_PARAM_READWRITE),
 408                                              NULL);
 409   g_assert (result == PROP_CURSOR_THEME_NAME);
 410
 411   result = settings_install_property_parser (class,
 412                                              g_param_spec_int ("gtk-cursor-theme-size",
 413                                                                P_("Cursor theme size"),
 414                                                                P_("Size to use for cursors, or 0 to use the default size"),
 415                                                                0, 128, 0,
 416                                                                GTK_PARAM_READWRITE),
 417                                              NULL);
 418
 419   g_assert (result == PROP_CURSOR_THEME_SIZE);
 420
 421 #endif  /* GDK_WINDOWING_X11 */
 422   result = settings_install_property_parser (class,
 423                                              g_param_spec_boolean ("gtk-alternative-button-order",
 424                                                                    P_("Alternative button order"),
 425                                                                    P_("Whether buttons in dialogs should use the alternative button order"),
 426                                                                    FALSE,
 427                                                                    GTK_PARAM_READWRITE),
 428                                              NULL);
 429   g_assert (result == PROP_ALTERNATIVE_BUTTON_ORDER);
 430
 431   /**
 432    * GtkSettings:gtk-alternative-sort-arrows:
 433    *
 434    * Controls the direction of the sort indicators in sorted list and tree
 435    * views.  By default an arrow pointing down means the column is sorted
 436    * in ascending order.  When set to %TRUE, this order will be inverted.
 437    *
 438    * Since: 2.12
 439    */
 440   result = settings_install_property_parser (class,
 441                                              g_param_spec_boolean ("gtk-alternative-sort-arrows",
 442                                                                    P_("Alternative sort indicator direction"),
 443                                                                    P_("Whether the direction of the sort indicators in list and tree views is inverted compared to the default (where down means ascending)"),
 444                                                                    FALSE,
 445                                                                    GTK_PARAM_READWRITE),
 446                                              NULL);
 447   g_assert (result == PROP_ALTERNATIVE_SORT_ARROWS);
 448
 449   result = settings_install_property_parser (class,
 450                                              g_param_spec_boolean ("gtk-show-input-method-menu",
 451                                                                    P_("Show the 'Input Methods' menu"),
 452                                                                    P_("Whether the context menus of entries and text views should offer to change the input method"),
 453                                                                    TRUE,
 454                                                                    GTK_PARAM_READWRITE),
 455                                              NULL);
 456   g_assert (result == PROP_SHOW_INPUT_METHOD_MENU);
 457
 458   result = settings_install_property_parser (class,
 459                                              g_param_spec_boolean ("gtk-show-unicode-menu",
 460                                                                    P_("Show the 'Insert Unicode Control Character' menu"),
 461                                                                    P_("Whether the context menus of entries and text views should offer to insert control characters"),
 462                                                                    TRUE,
 463                                                                    GTK_PARAM_READWRITE),
 464                                              NULL);
 465   g_assert (result == PROP_SHOW_UNICODE_MENU);
 466
 467   result = settings_install_property_parser (class,
 468                                              g_param_spec_int ("gtk-timeout-initial",
 469                                                                P_("Start timeout"),
 470                                                                P_("Starting value for timeouts, when button is pressed"),
 471                                                                0, G_MAXINT, DEFAULT_TIMEOUT_INITIAL,
 472                                                                GTK_PARAM_READWRITE),
 473                                              NULL);
 474
 475   g_assert (result == PROP_TIMEOUT_INITIAL);
 476
 477   result = settings_install_property_parser (class,
 478                                              g_param_spec_int ("gtk-timeout-repeat",
 479                                                                P_("Repeat timeout"),
 480                                                                P_("Repeat value for timeouts, when button is pressed"),
 481                                                                0, G_MAXINT, DEFAULT_TIMEOUT_REPEAT,
 482                                                                GTK_PARAM_READWRITE),
 483                                              NULL);
 484
 485   g_assert (result == PROP_TIMEOUT_REPEAT);
 486
 487   result = settings_install_property_parser (class,
 488                                              g_param_spec_int ("gtk-timeout-expand",
 489                                                                P_("Expand timeout"),
 490                                                                P_("Expand value for timeouts, when a widget is expanding a new region"),
 491                                                                0, G_MAXINT, DEFAULT_TIMEOUT_EXPAND,
 492                                                                GTK_PARAM_READWRITE),
 493                                              NULL);
 494
 495   g_assert (result == PROP_TIMEOUT_EXPAND);
 496
 497   /**
 498    * GtkSettings:gtk-color-scheme:
 499    *
 500    * A palette of named colors for use in themes. The format of the string is
 501    * <programlisting>
 502    * name1: color1
 503    * name2: color2
 504    * ...
 505    * </programlisting>
 506    * Color names must be acceptable as identifiers in the
 507    * <link linkend="gtk-Resource-Files">gtkrc</link> syntax, and
 508    * color specifications must be in the format accepted by
 509    * gdk_color_parse().
 510    *
 511    * Note that due to the way the color tables from different sources are
 512    * merged, color specifications will be converted to hexadecimal form
 513    * when getting this property.
 514    *
 515    * Starting with GTK+ 2.12, the entries can alternatively be separated
 516    * by ';' instead of newlines:
 517    * <programlisting>
 518    * name1: color1; name2: color2; ...
 519    * </programlisting>
 520    *
 521    * Since: 2.10
 522    */
 523   result = settings_install_property_parser (class,
 524                                              g_param_spec_string ("gtk-color-scheme",
 525                                                                   P_("Color scheme"),
 526                                                                   P_("A palette of named colors for use in themes"),
 527                                                                   "",
 528                                                                   GTK_PARAM_READWRITE),
 529                                              NULL);
 530
 531   g_assert (result == PROP_COLOR_SCHEME);
 532
 533   result = settings_install_property_parser (class,
 534                                              g_param_spec_boolean ("gtk-enable-animations",
 535                                                                    P_("Enable Animations"),
 536                                                                    P_("Whether to enable toolkit-wide animations."),
 537                                                                    TRUE,
 538                                                                    GTK_PARAM_READWRITE),
 539                                              NULL);
 540
 541   g_assert (result == PROP_ENABLE_ANIMATIONS);
 542
 543   /**
 544    * GtkSettings:gtk-touchscreen-mode:
 545    *
 546    * When %TRUE, there are no motion notify events delivered on this screen,
 547    * and widgets can't use the pointer hovering them for any essential
 548    * functionality.
 549    *
 550    * Since: 2.10
 551    */
 552   result = settings_install_property_parser (class,
 553                                              g_param_spec_boolean ("gtk-touchscreen-mode",
 554                                                                    P_("Enable Touchscreen Mode"),
 555                                                                    P_("When TRUE, there are no motion notify events delivered on this screen"),
 556                                                                    FALSE,
 557                                                                    GTK_PARAM_READWRITE),
 558                                              NULL);
 559
 560   g_assert (result == PROP_TOUCHSCREEN_MODE);
 561
 562   /**
 563    * GtkSettings:gtk-tooltip-timeout:
 564    *
 565    * Time, in milliseconds, after which a tooltip could appear if the
 566    * cursor is hovering on top of a widget.
 567    *
 568    * Since: 2.12
 569    */
 570   result = settings_install_property_parser (class,
 571                                              g_param_spec_int ("gtk-tooltip-timeout",
 572                                                                P_("Tooltip timeout"),
 573                                                                P_("Timeout before tooltip is shown"),
 574                                                                0, G_MAXINT,
 575                                                                1500,
 576                                                                GTK_PARAM_READWRITE),
 577                                              NULL);
 578
 579   g_assert (result == PROP_TOOLTIP_TIMEOUT);
 580
 581   /**
 582    * GtkSettings:gtk-tooltip-browse-timeout:
 583    *
 584    * Controls the time after which tooltips will appear when
 585    * browse mode is enabled, in milliseconds.
 586    *
 587    * Browse mode is enabled when the mouse pointer moves off an object
 588    * where a tooltip was currently being displayed.  If the mouse pointer
 589    * hits another object before the browse mode timeout expires (see
 590    * gtk-tooltip-browse-mode-timeout), it will take the amount of
 591    * milliseconds specified by this setting to popup the tooltip
 592    * for the new object.
 593    *
 594    * Since: 2.12
 595    */
 596   result = settings_install_property_parser (class,
 597                                              g_param_spec_int ("gtk-tooltip-browse-timeout",
 598                                                                P_("Tooltip browse timeout"),
 599                                                                P_("Timeout before tooltip is shown when browse mode is enabled"),
 600                                                                0, G_MAXINT,
 601                                                                100,
 602                                                                GTK_PARAM_READWRITE),
 603                                              NULL);
 604
 605   g_assert (result == PROP_TOOLTIP_BROWSE_TIMEOUT);
 606
 607   /**
 608    * GtkSettings:gtk-tooltip-browse-mode-timeout:
 609    *
 610    * Amount of time, in milliseconds, after which the browse mode
 611    * will be disabled.
 612    *
 613    * See GtkSettings:gtk-tooltip-browse-timeout for more information
 614    * about browse mode.
 615    *
 616    * Since: 2.12
 617    */
 618   result = settings_install_property_parser (class,
 619                                              g_param_spec_int ("gtk-tooltip-browse-mode-timeout",
 620                                                                P_("Tooltip browse mode timeout"),
 621                                                                P_("Timeout after which browse mode is disabled"),
 622                                                                0, G_MAXINT,
 623                                                                500,
 624                                                                GTK_PARAM_READWRITE),
 625                                              NULL);
 626
 627   g_assert (result == PROP_TOOLTIP_BROWSE_MODE_TIMEOUT);
 628
 629   /**
 630    * GtkSettings:gtk-keynav-cursor-only:
 631    *
 632    * When %TRUE, keyboard navigation should be able to reach all widgets
 633    * by using the cursor keys only. Tab, Shift etc. keys can't be expected
 634    * to be present on the used input device.
 635    *
 636    * Since: 2.12
 637    */
 638   result = settings_install_property_parser (class,
 639                                              g_param_spec_boolean ("gtk-keynav-cursor-only",
 640                                                                    P_("Keynav Cursor Only"),
 641                                                                    P_("When TRUE, there are only cursor keys available to navigate widgets"),
 642                                                                    FALSE,
 643                                                                    GTK_PARAM_READWRITE),
 644                                              NULL);
 645
 646   g_assert (result == PROP_KEYNAV_CURSOR_ONLY);
 647
 648   /**
 649    * GtkSettings:gtk-keynav-wrap-around:
 650    *
 651    * When %TRUE, some widgets will wrap around when doing keyboard
 652    * navigation, such as menus, menubars and notebooks.
 653    *
 654    * Since: 2.12
 655    */
 656   result = settings_install_property_parser (class,
 657                                              g_param_spec_boolean ("gtk-keynav-wrap-around",
 658                                                                    P_("Keynav Wrap Around"),
 659                                                                    P_("Whether to wrap around when keyboard-navigating widgets"),
 660                                                                    TRUE,
 661                                                                    GTK_PARAM_READWRITE),
 662                                              NULL);
 663
 664   g_assert (result == PROP_KEYNAV_WRAP_AROUND);
 665
 666   /**
 667    * GtkSettings:gtk-error-bell:
 668    *
 669    * When %TRUE, keyboard navigation and other input-related errors
 670    * will cause a beep. Since the error bell is implemented using
 671    * gdk_window_beep(), the windowing system may offer ways to
 672    * configure the error bell in many ways, such as flashing the
 673    * window or similar visual effects.
 674    *
 675    * Since: 2.12
 676    */
 677   result = settings_install_property_parser (class,
 678                                              g_param_spec_boolean ("gtk-error-bell",
 679                                                                    P_("Error Bell"),
 680                                                                    P_("When TRUE, keyboard navigation and other errors will cause a beep"),
 681                                                                    TRUE,
 682                                                                    GTK_PARAM_READWRITE),
 683                                              NULL);
 684
 685   g_assert (result == PROP_ERROR_BELL);
 686
 687   /**
 688    * GtkSettings:color-hash:
 689    *
 690    * Holds a hash table representation of the gtk-color-scheme setting,
 691    * mapping color names to #GdkColor<!-- -->s.
 692    *
 693    * Since: 2.10
 694    */
 695   result = settings_install_property_parser (class,
 696                                              g_param_spec_boxed ("color-hash",
 697                                                                  P_("Color Hash"),
 698                                                                  P_("A hash table representation of the color scheme."),
 699                                                                  G_TYPE_HASH_TABLE,
 700                                                                  GTK_PARAM_READABLE),
 701                                              NULL);
 702   g_assert (result == PROP_COLOR_HASH);
 703
 704   result = settings_install_property_parser (class,
 705                                              g_param_spec_string ("gtk-file-chooser-backend",
 706                                                                   P_("Default file chooser backend"),
 707                                                                   P_("Name of the GtkFileChooser backend to use by default"),
 708                                                                   NULL,
 709                                                                   GTK_PARAM_READWRITE),
 710                                              NULL);
 711   g_assert (result == PROP_FILE_CHOOSER_BACKEND);
 712
 713   /**
 714    * GtkSettings:gtk-print-backends:
 715    *
 716    * A comma-separated list of print backends to use in the print
 717    * dialog. Available print backends depend on the GTK+ installation,
 718    * and may include "pdf", "cups" or "lpr".
 719    *
 720    * Since: 2.10
 721    */
 722   result = settings_install_property_parser (class,
 723                                              g_param_spec_string ("gtk-print-backends",
 724                                                                   P_("Default print backend"),
 725                                                                   P_("List of the GtkPrintBackend backends to use by default"),
 726                                                                   GTK_PRINT_BACKENDS,
 727                                                                   GTK_PARAM_READWRITE),
 728                                              NULL);
 729   g_assert (result == PROP_PRINT_BACKENDS);
 730
 731   /**
 732    * GtkSettings:gtk-print-preview-command:
 733    *
 734    * A command to run for displaying the print preview. The command
 735    * should contain a %f placeholder, which will get replaced by
 736    * the path to the pdf file.
 737    *
 738    * The preview application is responsible for removing the pdf file
 739    * when it is done.
 740    *
 741    * Since: 2.10
 742    */
 743   result = settings_install_property_parser (class,
 744                                              g_param_spec_string ("gtk-print-preview-command",
 745                                                                   P_("Default command to run when displaying a print preview"),
 746                                                                   P_("Command to run when displaying a print preview"),
 747                                                                   GTK_PRINT_PREVIEW_COMMAND,
 748                                                                   GTK_PARAM_READWRITE),
 749                                              NULL);
 750   g_assert (result == PROP_PRINT_PREVIEW_COMMAND);
 751
 752   /**
 753    * GtkSettings:gtk-enable-mnemonics:
 754    *
 755    * Whether labels and menu items should have visible mnemonics which
 756    * can be activated.
 757    *
 758    * Since: 2.12
 759    */
 760   result = settings_install_property_parser (class,
 761                                              g_param_spec_boolean ("gtk-enable-mnemonics",
 762                                                                    P_("Enable Mnemonics"),
 763                                                                    P_("Whether labels should have mnemonics"),
 764                                                                    TRUE,
 765                                                                    GTK_PARAM_READWRITE),
 766                                              NULL);
 767   g_assert (result == PROP_ENABLE_MNEMONICS);
 768
 769   /**
 770    * GtkSettings:gtk-enable-accels:
 771    *
 772    * Whether menu items should have visible accelerators which can be
 773    * activated.
 774    *
 775    * Since: 2.12
 776    */
 777   result = settings_install_property_parser (class,
 778                                              g_param_spec_boolean ("gtk-enable-accels",
 779                                                                    P_("Enable Accelerators"),
 780                                                                    P_("Whether menu items should have accelerators"),
 781                                                                    TRUE,
 782                                                                    GTK_PARAM_READWRITE),
 783                                              NULL);
 784   g_assert (result == PROP_ENABLE_ACCELS);
 785 }
 786
 787 static void
 788 gtk_settings_finalize (GObject *object)
 789 {
 790   GtkSettings *settings = GTK_SETTINGS (object);
 791   guint i;
 792
 793   object_list = g_slist_remove (object_list, settings);
 794
 795   _gtk_rc_context_destroy (settings);
 796
 797   for (i = 0; i < class_n_properties; i++)
 798     g_value_unset (&settings->property_values[i].value);
 799   g_free (settings->property_values);
 800
 801   g_datalist_clear (&settings->queued_settings);
 802
 803   G_OBJECT_CLASS (gtk_settings_parent_class)->finalize (object);
 804 }
 805
 806 /**
 807  * gtk_settings_get_for_screen:
 808  * @screen : a #GdkScreen.
 809  *
 810  * Gets the #GtkSettings object for @screen, creating it if necessary.
 811  *
 812  * Return value: a #GtkSettings object.
 813  *
 814  * Since: 2.2
 815  */
 816 GtkSettings*
 817 gtk_settings_get_for_screen (GdkScreen *screen)
 818 {
 819   GtkSettings *settings;
 820
 821   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 822
 823   settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
 824   if (!settings)
 825     {
 826       settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
 827       settings->screen = screen;
 828       g_object_set_data_full (G_OBJECT (screen), I_("gtk-settings"),
 829                               settings, g_object_unref);
 830
 831       gtk_rc_reparse_all_for_settings (settings, TRUE);
 832       settings_update_double_click (settings);
 833 #ifdef GDK_WINDOWING_X11
 834       settings_update_cursor_theme (settings);
 835       settings_update_resolution (settings);
 836       settings_update_font_options (settings);
 837 #endif
 838       settings_update_color_scheme (settings);
 839     }
 840
 841   return settings;
 842 }
 843
 844 /**
 845  * gtk_settings_get_default:
 846  *
 847  * Gets the #GtkSettings object for the default GDK screen, creating
 848  * it if necessary. See gtk_settings_get_for_screen().
 849  *
 850  * Return value: a #GtkSettings object. If there is no default
 851  *  screen, then returns %NULL.
 852  **/
 853 GtkSettings*
 854 gtk_settings_get_default (void)
 855 {
 856   GdkScreen *screen = gdk_screen_get_default ();
 857
 858   if (screen)
 859     return gtk_settings_get_for_screen (screen);
 860   else
 861     return NULL;
 862 }
 863
 864 static void
 865 gtk_settings_set_property (GObject      *object,
 866                            guint         property_id,
 867                            const GValue *value,
 868                            GParamSpec   *pspec)
 869 {
 870   GtkSettings *settings = GTK_SETTINGS (object);
 871
 872   g_value_copy (value, &settings->property_values[property_id - 1].value);
 873   settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
 874
 875   if (pspec->param_id == PROP_COLOR_SCHEME)
 876     merge_color_scheme (settings, value, GTK_SETTINGS_SOURCE_APPLICATION);
 877 }
 878
 879 static void
 880 gtk_settings_get_property (GObject     *object,
 881                            guint        property_id,
 882                            GValue      *value,
 883                            GParamSpec  *pspec)
 884 {
 885   GtkSettings *settings = GTK_SETTINGS (object);
 886   GType value_type = G_VALUE_TYPE (value);
 887   GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
 888
 889   /* handle internal properties */
 890   switch (property_id)
 891     {
 892     case PROP_COLOR_HASH:
 893       g_value_set_boxed (value, get_color_hash (settings));
 894       return;
 895     case PROP_COLOR_SCHEME:
 896       g_value_take_string (value, get_color_scheme (settings));
 897       return;
 898     default: ;
 899     }
 900
 901   /* For enums and strings, we need to get the value as a string,
 902    * not as an int, since we support using names/nicks as the setting
 903    * value.
 904    */
 905   if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
 906        !(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
 907       g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
 908       g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
 909     {
 910       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 911           !gdk_screen_get_setting (settings->screen, pspec->name, value))
 912         g_value_copy (&settings->property_values[property_id - 1].value, value);
 913       else
 914         g_param_value_validate (pspec, value);
 915     }
 916   else
 917     {
 918       GValue val = { 0, };
 919
 920       /* Try to get xsetting as a string and parse it. */
 921
 922       g_value_init (&val, G_TYPE_STRING);
 923
 924       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 925           !gdk_screen_get_setting (settings->screen, pspec->name, &val))
 926         {
 927           g_value_copy (&settings->property_values[property_id - 1].value, value);
 928         }
 929       else
 930         {
 931           GValue tmp_value = { 0, };
 932           GValue gstring_value = { 0, };
 933           GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
 934
 935           g_value_init (&gstring_value, G_TYPE_GSTRING);
 936           g_value_take_boxed (&gstring_value,
 937                               g_string_new (g_value_get_string (&val)));
 938
 939           g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 940
 941           if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
 942                                                      pspec, &tmp_value))
 943             {
 944               g_value_copy (&tmp_value, value);
 945               g_param_value_validate (pspec, value);
 946             }
 947           else
 948             {
 949               g_value_copy (&settings->property_values[property_id - 1].value, value);
 950             }
 951
 952           g_value_unset (&gstring_value);
 953           g_value_unset (&tmp_value);
 954         }
 955
 956       g_value_unset (&val);
 957     }
 958 }
 959
 960 static void
 961 gtk_settings_notify (GObject    *object,
 962                      GParamSpec *pspec)
 963 {
 964   GtkSettings *settings = GTK_SETTINGS (object);
 965   guint property_id = pspec->param_id;
 966
 967   if (settings->screen == NULL) /* initialization */
 968     return;
 969
 970   switch (property_id)
 971     {
 972     case PROP_MODULES:
 973       settings_update_modules (settings);
 974       break;
 975     case PROP_DOUBLE_CLICK_TIME:
 976     case PROP_DOUBLE_CLICK_DISTANCE:
 977       settings_update_double_click (settings);
 978       break;
 979     case PROP_COLOR_SCHEME:
 980       settings_update_color_scheme (settings);
 981       break;
 982 #ifdef GDK_WINDOWING_X11
 983     case PROP_XFT_DPI:
 984       settings_update_resolution (settings);
 985       /* This is a hack because with gtk_rc_reset_styles() doesn't get
 986        * widgets with gtk_widget_style_set(), and also causes more
 987        * recomputation than necessary.
 988        */
 989       gtk_rc_reset_styles (GTK_SETTINGS (object));
 990       break;
 991     case PROP_XFT_ANTIALIAS:
 992     case PROP_XFT_HINTING:
 993     case PROP_XFT_HINTSTYLE:
 994     case PROP_XFT_RGBA:
 995       settings_update_font_options (settings);
 996       gtk_rc_reset_styles (GTK_SETTINGS (object));
 997       break;
 998     case PROP_CURSOR_THEME_NAME:
 999     case PROP_CURSOR_THEME_SIZE:
1000       settings_update_cursor_theme (settings);
1001       break;
1002 #endif /* GDK_WINDOWING_X11 */
1003     }
1004 }
1005
1006 gboolean
1007 _gtk_settings_parse_convert (GtkRcPropertyParser parser,
1008                              const GValue       *src_value,
1009                              GParamSpec         *pspec,
1010                              GValue             *dest_value)
1011 {
1012   gboolean success = FALSE;
1013
1014   g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
1015
1016   if (parser)
1017     {
1018       GString *gstring;
1019       gboolean free_gstring = TRUE;
1020
1021       if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1022         {
1023           gstring = g_value_get_boxed (src_value);
1024           free_gstring = FALSE;
1025         }
1026       else if (G_VALUE_HOLDS_LONG (src_value))
1027         {
1028           gstring = g_string_new (NULL);
1029           g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
1030         }
1031       else if (G_VALUE_HOLDS_DOUBLE (src_value))
1032         {
1033           gstring = g_string_new (NULL);
1034           g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
1035         }
1036       else if (G_VALUE_HOLDS_STRING (src_value))
1037         {
1038           gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
1039
1040           gstring = g_string_new ("\"");
1041           g_string_append (gstring, tstr);
1042           g_string_append_c (gstring, '\"');
1043           g_free (tstr);
1044         }
1045       else
1046         {
1047           g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
1048           gstring = NULL; /* silence compiler */
1049         }
1050
1051       success = (parser (pspec, gstring, dest_value) &&
1052                  !g_param_value_validate (pspec, dest_value));
1053
1054       if (free_gstring)
1055         g_string_free (gstring, TRUE);
1056     }
1057   else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1058     {
1059       if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
1060         {
1061           GString *gstring = g_value_get_boxed (src_value);
1062
1063           g_value_set_string (dest_value, gstring ? gstring->str : NULL);
1064           success = !g_param_value_validate (pspec, dest_value);
1065         }
1066     }
1067   else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
1068     success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
1069
1070   return success;
1071 }
1072
1073 static void
1074 apply_queued_setting (GtkSettings             *data,
1075                       GParamSpec              *pspec,
1076                       GtkSettingsValuePrivate *qvalue)
1077 {
1078   GValue tmp_value = { 0, };
1079   GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
1080
1081   g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1082   if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
1083                                    pspec, &tmp_value))
1084     {
1085       if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
1086         {
1087           g_value_copy (&tmp_value, &data->property_values[pspec->param_id - 1].value);
1088           data->property_values[pspec->param_id - 1].source = qvalue->source;
1089           g_object_notify (G_OBJECT (data), g_param_spec_get_name (pspec));
1090         }
1091
1092       if (pspec->param_id == PROP_COLOR_SCHEME)
1093         merge_color_scheme (data, &tmp_value, qvalue->source);
1094     }
1095   else
1096     {
1097       gchar *debug = g_strdup_value_contents (&qvalue->public.value);
1098
1099       g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
1100                  qvalue->public.origin ? qvalue->public.origin : "(for origin information, set GTK_DEBUG)",
1101                  pspec->name,
1102                  g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
1103                  debug,
1104                  G_VALUE_TYPE_NAME (&tmp_value));
1105       g_free (debug);
1106     }
1107   g_value_unset (&tmp_value);
1108 }
1109
1110 static guint
1111 settings_install_property_parser (GtkSettingsClass   *class,
1112                                   GParamSpec         *pspec,
1113                                   GtkRcPropertyParser parser)
1114 {
1115   GSList *node, *next;
1116
1117   switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
1118     {
1119     case G_TYPE_BOOLEAN:
1120     case G_TYPE_UCHAR:
1121     case G_TYPE_CHAR:
1122     case G_TYPE_UINT:
1123     case G_TYPE_INT:
1124     case G_TYPE_ULONG:
1125     case G_TYPE_LONG:
1126     case G_TYPE_FLOAT:
1127     case G_TYPE_DOUBLE:
1128     case G_TYPE_STRING:
1129       break;
1130     case G_TYPE_BOXED:
1131       if (strcmp (g_param_spec_get_name (pspec), "color-hash") == 0)
1132         {
1133           break;
1134         }
1135       /* fall through */
1136     default:
1137       if (!parser)
1138         {
1139           g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
1140                      pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
1141           return 0;
1142         }
1143     }
1144   if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
1145     {
1146       g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
1147                  pspec->name);
1148       return 0;
1149     }
1150
1151   for (node = object_list; node; node = node->next)
1152     g_object_freeze_notify (node->data);
1153
1154   g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
1155   g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
1156
1157   for (node = object_list; node; node = node->next)
1158     {
1159       GtkSettings *settings = node->data;
1160       GtkSettingsValuePrivate *qvalue;
1161
1162       settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
1163       settings->property_values[class_n_properties - 1].value.g_type = 0;
1164       g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1165       g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
1166       settings->property_values[class_n_properties - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
1167       g_object_notify (G_OBJECT (settings), pspec->name);
1168
1169       qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
1170       if (qvalue)
1171         apply_queued_setting (settings, pspec, qvalue);
1172     }
1173
1174   for (node = object_list; node; node = next)
1175     {
1176       next = node->next;
1177       g_object_thaw_notify (node->data);
1178     }
1179
1180   return class_n_properties;
1181 }
1182
1183 GtkRcPropertyParser
1184 _gtk_rc_property_parser_from_type (GType type)
1185 {
1186   if (type == GDK_TYPE_COLOR)
1187     return gtk_rc_property_parse_color;
1188   else if (type == GTK_TYPE_REQUISITION)
1189     return gtk_rc_property_parse_requisition;
1190   else if (type == GTK_TYPE_BORDER)
1191     return gtk_rc_property_parse_border;
1192   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
1193     return gtk_rc_property_parse_enum;
1194   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
1195     return gtk_rc_property_parse_flags;
1196   else
1197     return NULL;
1198 }
1199
1200 void
1201 gtk_settings_install_property (GParamSpec *pspec)
1202 {
1203   GtkRcPropertyParser parser;
1204
1205   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1206
1207   parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
1208
1209   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
1210 }
1211
1212 void
1213 gtk_settings_install_property_parser (GParamSpec          *pspec,
1214                                       GtkRcPropertyParser  parser)
1215 {
1216   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1217   g_return_if_fail (parser != NULL);
1218
1219   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
1220 }
1221
1222 static void
1223 free_value (gpointer data)
1224 {
1225   GtkSettingsValuePrivate *qvalue = data;
1226
1227   g_value_unset (&qvalue->public.value);
1228   g_free (qvalue->public.origin);
1229   g_free (qvalue);
1230 }
1231
1232 static void
1233 gtk_settings_set_property_value_internal (GtkSettings            *settings,
1234                                           const gchar            *prop_name,
1235                                           const GtkSettingsValue *new_value,
1236                                           GtkSettingsSource       source)
1237 {
1238   GtkSettingsValuePrivate *qvalue;
1239   GParamSpec *pspec;
1240   gchar *name;
1241   GQuark name_quark;
1242
1243   if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
1244       !G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
1245       !G_VALUE_HOLDS_STRING (&new_value->value) &&
1246       !G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
1247     {
1248       g_warning (G_STRLOC ": value type invalid");
1249       return;
1250     }
1251
1252   name = g_strdup (prop_name);
1253   g_strcanon (name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
1254   name_quark = g_quark_from_string (name);
1255   g_free (name);
1256
1257   qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
1258   if (!qvalue)
1259     {
1260       qvalue = g_new0 (GtkSettingsValuePrivate, 1);
1261       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
1262     }
1263   else
1264     {
1265       g_free (qvalue->public.origin);
1266       g_value_unset (&qvalue->public.value);
1267     }
1268   qvalue->public.origin = g_strdup (new_value->origin);
1269   g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
1270   g_value_copy (&new_value->value, &qvalue->public.value);
1271   qvalue->source = source;
1272   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
1273   if (pspec)
1274     apply_queued_setting (settings, pspec, qvalue);
1275 }
1276
1277 void
1278 gtk_settings_set_property_value (GtkSettings            *settings,
1279                                  const gchar            *prop_name,
1280                                  const GtkSettingsValue *new_value)
1281 {
1282   g_return_if_fail (GTK_SETTINGS (settings));
1283   g_return_if_fail (prop_name != NULL);
1284   g_return_if_fail (new_value != NULL);
1285
1286   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1287                                             GTK_SETTINGS_SOURCE_APPLICATION);
1288 }
1289
1290 void
1291 _gtk_settings_set_property_value_from_rc (GtkSettings            *settings,
1292                                           const gchar            *prop_name,
1293                                           const GtkSettingsValue *new_value)
1294 {
1295   g_return_if_fail (GTK_SETTINGS (settings));
1296   g_return_if_fail (prop_name != NULL);
1297   g_return_if_fail (new_value != NULL);
1298
1299   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1300                                             GTK_SETTINGS_SOURCE_RC_FILE);
1301 }
1302
1303 void
1304 gtk_settings_set_string_property (GtkSettings *settings,
1305                                   const gchar *name,
1306                                   const gchar *v_string,
1307                                   const gchar *origin)
1308 {
1309   GtkSettingsValue svalue = { NULL, { 0, }, };
1310
1311   g_return_if_fail (GTK_SETTINGS (settings));
1312   g_return_if_fail (name != NULL);
1313   g_return_if_fail (v_string != NULL);
1314
1315   svalue.origin = (gchar*) origin;
1316   g_value_init (&svalue.value, G_TYPE_STRING);
1317   g_value_set_static_string (&svalue.value, v_string);
1318   gtk_settings_set_property_value (settings, name, &svalue);
1319   g_value_unset (&svalue.value);
1320 }
1321
1322 void
1323 gtk_settings_set_long_property (GtkSettings *settings,
1324                                 const gchar *name,
1325                                 glong        v_long,
1326                                 const gchar *origin)
1327 {
1328   GtkSettingsValue svalue = { NULL, { 0, }, };
1329
1330   g_return_if_fail (GTK_SETTINGS (settings));
1331   g_return_if_fail (name != NULL);
1332
1333   svalue.origin = (gchar*) origin;
1334   g_value_init (&svalue.value, G_TYPE_LONG);
1335   g_value_set_long (&svalue.value, v_long);
1336   gtk_settings_set_property_value (settings, name, &svalue);
1337   g_value_unset (&svalue.value);
1338 }
1339
1340 void
1341 gtk_settings_set_double_property (GtkSettings *settings,
1342                                   const gchar *name,
1343                                   gdouble      v_double,
1344                                   const gchar *origin)
1345 {
1346   GtkSettingsValue svalue = { NULL, { 0, }, };
1347
1348   g_return_if_fail (GTK_SETTINGS (settings));
1349   g_return_if_fail (name != NULL);
1350
1351   svalue.origin = (gchar*) origin;
1352   g_value_init (&svalue.value, G_TYPE_DOUBLE);
1353   g_value_set_double (&svalue.value, v_double);
1354   gtk_settings_set_property_value (settings, name, &svalue);
1355   g_value_unset (&svalue.value);
1356 }
1357
1358 /**
1359  * gtk_rc_property_parse_color:
1360  * @pspec: a #GParamSpec
1361  * @gstring: the #GString to be parsed
1362  * @property_value: a #GValue which must hold #GdkColor values.
1363  *
1364  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1365  * or gtk_widget_class_install_style_property_parser() which parses a
1366  * color given either by its name or in the form
1367  * <literal>{ red, green, blue }</literal> where %red, %green and
1368  * %blue are integers between 0 and 65535 or floating-point numbers
1369  * between 0 and 1.
1370  *
1371  * Return value: %TRUE if @gstring could be parsed and @property_value
1372  * has been set to the resulting #GdkColor.
1373  **/
1374 gboolean
1375 gtk_rc_property_parse_color (const GParamSpec *pspec,
1376                              const GString    *gstring,
1377                              GValue           *property_value)
1378 {
1379   GdkColor color = { 0, 0, 0, 0, };
1380   GScanner *scanner;
1381   gboolean success;
1382
1383   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1384   g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
1385
1386   scanner = gtk_rc_scanner_new ();
1387   g_scanner_input_text (scanner, gstring->str, gstring->len);
1388   if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
1389       g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
1390     {
1391       g_value_set_boxed (property_value, &color);
1392       success = TRUE;
1393     }
1394   else
1395     success = FALSE;
1396   g_scanner_destroy (scanner);
1397
1398   return success;
1399 }
1400
1401 /**
1402  * gtk_rc_property_parse_enum:
1403  * @pspec: a #GParamSpec
1404  * @gstring: the #GString to be parsed
1405  * @property_value: a #GValue which must hold enum values.
1406  *
1407  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1408  * or gtk_widget_class_install_style_property_parser() which parses a single
1409  * enumeration value.
1410  *
1411  * The enumeration value can be specified by its name, its nickname or
1412  * its numeric value. For consistency with flags parsing, the value
1413  * may be surrounded by parentheses.
1414  *
1415  * Return value: %TRUE if @gstring could be parsed and @property_value
1416  * has been set to the resulting #GEnumValue.
1417  **/
1418 gboolean
1419 gtk_rc_property_parse_enum (const GParamSpec *pspec,
1420                             const GString    *gstring,
1421                             GValue           *property_value)
1422 {
1423   gboolean need_closing_brace = FALSE, success = FALSE;
1424   GScanner *scanner;
1425   GEnumValue *enum_value = NULL;
1426
1427   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1428   g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
1429
1430   scanner = gtk_rc_scanner_new ();
1431   g_scanner_input_text (scanner, gstring->str, gstring->len);
1432
1433   /* we just want to parse _one_ value, but for consistency with flags parsing
1434    * we support optional parenthesis
1435    */
1436   g_scanner_get_next_token (scanner);
1437   if (scanner->token == '(')
1438     {
1439       need_closing_brace = TRUE;
1440       g_scanner_get_next_token (scanner);
1441     }
1442   if (scanner->token == G_TOKEN_IDENTIFIER)
1443     {
1444       GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
1445
1446       enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
1447       if (!enum_value)
1448         enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
1449       if (enum_value)
1450         {
1451           g_value_set_enum (property_value, enum_value->value);
1452           success = TRUE;
1453         }
1454     }
1455   else if (scanner->token == G_TOKEN_INT)
1456     {
1457       g_value_set_enum (property_value, scanner->value.v_int);
1458       success = TRUE;
1459     }
1460   if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
1461     success = FALSE;
1462   if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
1463     success = FALSE;
1464
1465   g_scanner_destroy (scanner);
1466
1467   return success;
1468 }
1469
1470 static guint
1471 parse_flags_value (GScanner    *scanner,
1472                    GFlagsClass *class,
1473                    guint       *number)
1474 {
1475   g_scanner_get_next_token (scanner);
1476   if (scanner->token == G_TOKEN_IDENTIFIER)
1477     {
1478       GFlagsValue *flags_value;
1479
1480       flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
1481       if (!flags_value)
1482         flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
1483       if (flags_value)
1484         {
1485           *number |= flags_value->value;
1486           return G_TOKEN_NONE;
1487         }
1488     }
1489   else if (scanner->token == G_TOKEN_INT)
1490     {
1491       *number |= scanner->value.v_int;
1492       return G_TOKEN_NONE;
1493     }
1494   return G_TOKEN_IDENTIFIER;
1495 }
1496
1497 /**
1498  * gtk_rc_property_parse_flags:
1499  * @pspec: a #GParamSpec
1500  * @gstring: the #GString to be parsed
1501  * @property_value: a #GValue which must hold flags values.
1502  *
1503  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1504  * or gtk_widget_class_install_style_property_parser() which parses flags.
1505  *
1506  * Flags can be specified by their name, their nickname or
1507  * numerically. Multiple flags can be specified in the form
1508  * <literal>"( flag1 | flag2 | ... )"</literal>.
1509  *
1510  * Return value: %TRUE if @gstring could be parsed and @property_value
1511  * has been set to the resulting flags value.
1512  **/
1513 gboolean
1514 gtk_rc_property_parse_flags (const GParamSpec *pspec,
1515                              const GString    *gstring,
1516                              GValue           *property_value)
1517 {
1518   GFlagsClass *class;
1519    gboolean success = FALSE;
1520   GScanner *scanner;
1521
1522   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1523   g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
1524
1525   class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
1526   scanner = gtk_rc_scanner_new ();
1527   g_scanner_input_text (scanner, gstring->str, gstring->len);
1528
1529   /* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
1530   if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
1531       scanner->next_token == G_TOKEN_INT)
1532     {
1533       guint token, flags_value = 0;
1534
1535       token = parse_flags_value (scanner, class, &flags_value);
1536
1537       if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1538         {
1539           success = TRUE;
1540           g_value_set_flags (property_value, flags_value);
1541         }
1542
1543     }
1544   else if (g_scanner_get_next_token (scanner) == '(')
1545     {
1546       guint token, flags_value = 0;
1547
1548       /* parse first value */
1549       token = parse_flags_value (scanner, class, &flags_value);
1550
1551       /* parse nth values, preceeded by '|' */
1552       while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
1553         token = parse_flags_value (scanner, class, &flags_value);
1554
1555       /* done, last token must have closed expression */
1556       if (token == G_TOKEN_NONE && scanner->token == ')' &&
1557           g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1558         {
1559           g_value_set_flags (property_value, flags_value);
1560           success = TRUE;
1561         }
1562     }
1563   g_scanner_destroy (scanner);
1564
1565   return success;
1566 }
1567
1568 static gboolean
1569 get_braced_int (GScanner *scanner,
1570                 gboolean  first,
1571                 gboolean  last,
1572                 gint     *value)
1573 {
1574   if (first)
1575     {
1576       g_scanner_get_next_token (scanner);
1577       if (scanner->token != '{')
1578         return FALSE;
1579     }
1580
1581   g_scanner_get_next_token (scanner);
1582   if (scanner->token != G_TOKEN_INT)
1583     return FALSE;
1584
1585   *value = scanner->value.v_int;
1586
1587   if (last)
1588     {
1589       g_scanner_get_next_token (scanner);
1590       if (scanner->token != '}')
1591         return FALSE;
1592     }
1593   else
1594     {
1595       g_scanner_get_next_token (scanner);
1596       if (scanner->token != ',')
1597         return FALSE;
1598     }
1599
1600   return TRUE;
1601 }
1602
1603 /**
1604  * gtk_rc_property_parse_requisition:
1605  * @pspec: a #GParamSpec
1606  * @gstring: the #GString to be parsed
1607  * @property_value: a #GValue which must hold boxed values.
1608  *
1609  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1610  * or gtk_widget_class_install_style_property_parser() which parses a
1611  * requisition in the form
1612  * <literal>"{ width, height }"</literal> for integers %width and %height.
1613  *
1614  * Return value: %TRUE if @gstring could be parsed and @property_value
1615  * has been set to the resulting #GtkRequisition.
1616  **/
1617 gboolean
1618 gtk_rc_property_parse_requisition  (const GParamSpec *pspec,
1619                                     const GString    *gstring,
1620                                     GValue           *property_value)
1621 {
1622   GtkRequisition requisition;
1623   GScanner *scanner;
1624   gboolean success = FALSE;
1625
1626   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1627   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1628
1629   scanner = gtk_rc_scanner_new ();
1630   g_scanner_input_text (scanner, gstring->str, gstring->len);
1631
1632   if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
1633       get_braced_int (scanner, FALSE, TRUE, &requisition.height))
1634     {
1635       g_value_set_boxed (property_value, &requisition);
1636       success = TRUE;
1637     }
1638
1639   g_scanner_destroy (scanner);
1640
1641   return success;
1642 }
1643
1644 /**
1645  * gtk_rc_property_parse_border:
1646  * @pspec: a #GParamSpec
1647  * @gstring: the #GString to be parsed
1648  * @property_value: a #GValue which must hold boxed values.
1649  *
1650  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1651  * or gtk_widget_class_install_style_property_parser() which parses
1652  * borders in the form
1653  * <literal>"{ left, right, top, bottom }"</literal> for integers
1654  * %left, %right, %top and %bottom.
1655  *
1656  * Return value: %TRUE if @gstring could be parsed and @property_value
1657  * has been set to the resulting #GtkBorder.
1658  **/
1659 gboolean
1660 gtk_rc_property_parse_border (const GParamSpec *pspec,
1661                               const GString    *gstring,
1662                               GValue           *property_value)
1663 {
1664   GtkBorder border;
1665   GScanner *scanner;
1666   gboolean success = FALSE;
1667
1668   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1669   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1670
1671   scanner = gtk_rc_scanner_new ();
1672   g_scanner_input_text (scanner, gstring->str, gstring->len);
1673
1674   if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
1675       get_braced_int (scanner, FALSE, FALSE, &border.right) &&
1676       get_braced_int (scanner, FALSE, FALSE, &border.top) &&
1677       get_braced_int (scanner, FALSE, TRUE, &border.bottom))
1678     {
1679       g_value_set_boxed (property_value, &border);
1680       success = TRUE;
1681     }
1682
1683   g_scanner_destroy (scanner);
1684
1685   return success;
1686 }
1687
1688 void
1689 _gtk_settings_handle_event (GdkEventSetting *event)
1690 {
1691   GtkSettings *settings;
1692   GParamSpec *pspec;
1693   guint property_id;
1694
1695   settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
1696   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name);
1697
1698   if (pspec)
1699     {
1700       property_id = pspec->param_id;
1701
1702       if (property_id == PROP_COLOR_SCHEME)
1703         {
1704           GValue value = { 0, };
1705
1706           g_value_init (&value, G_TYPE_STRING);
1707           if (!gdk_screen_get_setting (settings->screen, pspec->name, &value))
1708             g_value_set_static_string (&value, "");
1709           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
1710           g_value_unset (&value);
1711         }
1712
1713       g_object_notify (G_OBJECT (settings), pspec->name);
1714    }
1715 }
1716
1717 static void
1718 reset_rc_values_foreach (GQuark    key_id,
1719                          gpointer  data,
1720                          gpointer  user_data)
1721 {
1722   GtkSettingsValuePrivate *qvalue = data;
1723   GSList **to_reset = user_data;
1724
1725   if (qvalue->source == GTK_SETTINGS_SOURCE_RC_FILE)
1726     *to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
1727 }
1728
1729 void
1730 _gtk_settings_reset_rc_values (GtkSettings *settings)
1731 {
1732   GSList *to_reset = NULL;
1733   GSList *tmp_list;
1734   GParamSpec **pspecs, **p;
1735   gint i;
1736
1737   /* Remove any queued settings
1738    */
1739   g_datalist_foreach (&settings->queued_settings,
1740                       reset_rc_values_foreach,
1741                       &to_reset);
1742
1743   for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
1744     {
1745       GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
1746       g_datalist_id_remove_data (&settings->queued_settings, key_id);
1747     }
1748
1749    g_slist_free (to_reset);
1750
1751   /* Now reset the active settings
1752    */
1753   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
1754   i = 0;
1755
1756   g_object_freeze_notify (G_OBJECT (settings));
1757   for (p = pspecs; *p; p++)
1758     {
1759       if (settings->property_values[i].source == GTK_SETTINGS_SOURCE_RC_FILE)
1760         {
1761           GParamSpec *pspec = *p;
1762
1763           g_param_value_set_default (pspec, &settings->property_values[i].value);
1764           g_object_notify (G_OBJECT (settings), pspec->name);
1765         }
1766       i++;
1767     }
1768   g_object_thaw_notify (G_OBJECT (settings));
1769   g_free (pspecs);
1770 }
1771
1772 static void
1773 settings_update_double_click (GtkSettings *settings)
1774 {
1775   if (gdk_screen_get_number (settings->screen) == 0)
1776     {
1777       GdkDisplay *display = gdk_screen_get_display (settings->screen);
1778       gint double_click_time;
1779       gint double_click_distance;
1780
1781       g_object_get (settings,
1782                     "gtk-double-click-time", &double_click_time,
1783                     "gtk-double-click-distance", &double_click_distance,
1784                     NULL);
1785
1786       gdk_display_set_double_click_time (display, double_click_time);
1787       gdk_display_set_double_click_distance (display, double_click_distance);
1788     }
1789 }
1790
1791 static void
1792 settings_update_modules (GtkSettings *settings)
1793 {
1794   gchar *modules;
1795
1796   g_object_get (settings,
1797                 "gtk-modules", &modules,
1798                 NULL);
1799
1800   _gtk_modules_settings_changed (settings, modules);
1801
1802   g_free (modules);
1803 }
1804
1805 #ifdef GDK_WINDOWING_X11
1806 static void
1807 settings_update_cursor_theme (GtkSettings *settings)
1808 {
1809   GdkDisplay *display = gdk_screen_get_display (settings->screen);
1810   gchar *theme = NULL;
1811   gint size = 0;
1812
1813   g_object_get (settings,
1814                 "gtk-cursor-theme-name", &theme,
1815                 "gtk-cursor-theme-size", &size,
1816                 NULL);
1817
1818   gdk_x11_display_set_cursor_theme (display, theme, size);
1819
1820   g_free (theme);
1821 }
1822
1823 static void
1824 settings_update_font_options (GtkSettings *settings)
1825 {
1826   gint hinting;
1827   gchar *hint_style_str;
1828   cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_DEFAULT;
1829   gint antialias;
1830   cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_DEFAULT;
1831   gchar *rgba_str;
1832   cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
1833   cairo_font_options_t *options;
1834
1835   g_object_get (settings,
1836                 "gtk-xft-antialias", &antialias,
1837                 "gtk-xft-hinting", &hinting,
1838                 "gtk-xft-hintstyle", &hint_style_str,
1839                 "gtk-xft-rgba", &rgba_str,
1840                 NULL);
1841
1842   options = cairo_font_options_create ();
1843
1844   /* hint_metrics = FALSE should never be set for user interface code.
1845    */
1846   cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
1847
1848   if (hinting >= 0 && !hinting)
1849     {
1850       hint_style = CAIRO_HINT_STYLE_NONE;
1851     }
1852   else if (hint_style_str)
1853     {
1854       if (strcmp (hint_style_str, "hintnone") == 0)
1855         hint_style = CAIRO_HINT_STYLE_NONE;
1856       else if (strcmp (hint_style_str, "hintslight") == 0)
1857         hint_style = CAIRO_HINT_STYLE_SLIGHT;
1858       else if (strcmp (hint_style_str, "hintmedium") == 0)
1859         hint_style = CAIRO_HINT_STYLE_MEDIUM;
1860       else if (strcmp (hint_style_str, "hintfull") == 0)
1861         hint_style = CAIRO_HINT_STYLE_FULL;
1862     }
1863
1864   g_free (hint_style_str);
1865
1866   cairo_font_options_set_hint_style (options, hint_style);
1867
1868   if (rgba_str)
1869     {
1870       if (strcmp (rgba_str, "rgb") == 0)
1871         subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
1872       else if (strcmp (rgba_str, "bgr") == 0)
1873         subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
1874       else if (strcmp (rgba_str, "vrgb") == 0)
1875         subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
1876       else if (strcmp (rgba_str, "vbgr") == 0)
1877         subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
1878
1879       g_free (rgba_str);
1880     }
1881
1882   cairo_font_options_set_subpixel_order (options, subpixel_order);
1883
1884   if (antialias >= 0 && !antialias)
1885     antialias_mode = CAIRO_ANTIALIAS_NONE;
1886   else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
1887     antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
1888   else if (antialias >= 0)
1889     antialias_mode = CAIRO_ANTIALIAS_GRAY;
1890
1891   cairo_font_options_set_antialias (options, antialias_mode);
1892
1893   gdk_screen_set_font_options (settings->screen, options);
1894
1895   cairo_font_options_destroy (options);
1896 }
1897
1898 static void
1899 settings_update_resolution (GtkSettings *settings)
1900 {
1901   gint dpi_int;
1902   double dpi;
1903
1904   g_object_get (settings,
1905                 "gtk-xft-dpi", &dpi_int,
1906                 NULL);
1907
1908   if (dpi_int > 0)
1909     dpi = dpi_int / 1024.;
1910   else
1911     dpi = -1.;
1912
1913   gdk_screen_set_resolution (settings->screen, dpi);
1914 }
1915 #endif
1916
1917 typedef struct {
1918   GHashTable *color_hash;
1919   GHashTable *tables[GTK_SETTINGS_SOURCE_APPLICATION + 1];
1920   gchar *lastentry[GTK_SETTINGS_SOURCE_APPLICATION + 1];
1921 } ColorSchemeData;
1922
1923 static void
1924 color_scheme_data_free (ColorSchemeData *data)
1925 {
1926   gint i;
1927
1928   g_hash_table_unref (data->color_hash);
1929
1930   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
1931     {
1932       if (data->tables[i])
1933         g_hash_table_unref (data->tables[i]);
1934       g_free (data->lastentry[i]);
1935     }
1936
1937   g_free (data);
1938 }
1939
1940 static void
1941 settings_update_color_scheme (GtkSettings *settings)
1942 {
1943   if (!g_object_get_data (G_OBJECT (settings), "gtk-color-scheme"))
1944     {
1945       ColorSchemeData *data;
1946       GValue value = { 0, };
1947
1948       data = g_new0 (ColorSchemeData, 1);
1949       g_object_set_data_full (G_OBJECT (settings), "gtk-color-scheme",
1950                               data, (GDestroyNotify) color_scheme_data_free);
1951
1952       g_value_init (&value, G_TYPE_STRING);
1953       if (gdk_screen_get_setting (settings->screen, "gtk-color-scheme", &value))
1954         {
1955           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
1956           g_value_unset (&value);
1957         }
1958    }
1959 }
1960
1961 static gboolean
1962 add_color_to_hash (gchar      *name,
1963                    GdkColor   *color,
1964                    GHashTable *target)
1965 {
1966   GdkColor *old;
1967
1968   old = g_hash_table_lookup (target, name);
1969   if (!old || !gdk_color_equal (old, color))
1970     {
1971       g_hash_table_insert (target, g_strdup (name), gdk_color_copy (color));
1972
1973       return TRUE;
1974     }
1975
1976   return FALSE;
1977 }
1978
1979 static gboolean
1980 add_colors_to_hash_from_string (GHashTable  *hash,
1981                                 const gchar *colors)
1982 {
1983   gchar *s, *p, *name;
1984   GdkColor color;
1985   gboolean changed = FALSE;
1986   gchar *copy;
1987
1988   copy = g_strdup (colors);
1989   s = copy;
1990   while (s && *s)
1991     {
1992       name = s;
1993       p = strchr (s, ':');
1994       if (p)
1995         {
1996           *p = '\0';
1997           p++;
1998         }
1999       else
2000         break;
2001
2002       while (*p == ' ')
2003         p++;
2004
2005       s = p;
2006       while (*s)
2007         {
2008           if (*s == '\n' || *s == ';')
2009             {
2010               *s = '\0';
2011               s++;
2012               break;
2013             }
2014           s++;
2015         }
2016
2017       if (gdk_color_parse (p, &color))
2018         changed |= add_color_to_hash (name, &color, hash);
2019     }
2020
2021   g_free (copy);
2022
2023   return changed;
2024 }
2025
2026 static gboolean
2027 update_color_hash (ColorSchemeData   *data,
2028                    const gchar       *str,
2029                    GtkSettingsSource  source)
2030 {
2031   gboolean changed = FALSE;
2032   gint i;
2033
2034   if ((str == NULL || *str == '\0') &&
2035       (data->lastentry[source] == NULL || data->lastentry[source][0] == '\0'))
2036     return FALSE;
2037
2038   if (str && data->lastentry[source] && strcmp (str, data->lastentry[source]) == 0)
2039     return FALSE;
2040
2041   /* For the RC_FILE source we merge the values rather than over-writing
2042    * them, since multiple rc files might define independent sets of colors
2043    */
2044   if ((source != GTK_SETTINGS_SOURCE_RC_FILE) &&
2045       data->tables[source] && g_hash_table_size (data->tables[source]) > 0)
2046     {
2047       g_hash_table_unref (data->tables[source]);
2048       data->tables[source] = NULL;
2049       changed = TRUE; /* We can't rely on the code below since str might be "" */
2050     }
2051
2052   if (data->tables[source] == NULL)
2053     data->tables[source] = g_hash_table_new_full (g_str_hash, g_str_equal,
2054                                                   g_free,
2055                                                   (GDestroyNotify) gdk_color_free);
2056
2057   g_free (data->lastentry[source]);
2058   data->lastentry[source] = g_strdup (str);
2059
2060   changed |= add_colors_to_hash_from_string (data->tables[source], str);
2061
2062   if (!changed)
2063     return FALSE;
2064
2065   /* Rebuild the merged hash table. */
2066   if (data->color_hash)
2067     g_hash_table_unref (data->color_hash);
2068   data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
2069                                             (GDestroyNotify) gdk_color_free);
2070   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
2071     {
2072       if (data->tables[i])
2073         g_hash_table_foreach (data->tables[i], (GHFunc) add_color_to_hash,
2074                               data->color_hash);
2075     }
2076
2077   return TRUE;
2078 }
2079
2080 static void
2081 merge_color_scheme (GtkSettings       *settings,
2082                     const GValue      *value,
2083                     GtkSettingsSource  source)
2084 {
2085   ColorSchemeData *data;
2086   const gchar *colors;
2087
2088   g_object_freeze_notify (G_OBJECT (settings));
2089
2090   colors = g_value_get_string (value);
2091
2092   settings_update_color_scheme (settings);
2093
2094   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2095                                                 "gtk-color-scheme");
2096
2097   if (update_color_hash (data, colors, source))
2098     g_object_notify (G_OBJECT (settings), "color-hash");
2099
2100   g_object_thaw_notify (G_OBJECT (settings));
2101 }
2102
2103 static GHashTable *
2104 get_color_hash (GtkSettings *settings)
2105 {
2106   ColorSchemeData *data;
2107
2108   settings_update_color_scheme (settings);
2109
2110   data = (ColorSchemeData *)g_object_get_data (G_OBJECT (settings),
2111                                                "gtk-color-scheme");
2112
2113   return data->color_hash;
2114 }
2115
2116 static void
2117 append_color_scheme (gpointer key,
2118                      gpointer value,
2119                      gpointer data)
2120 {
2121   gchar *name = (gchar *)key;
2122   GdkColor *color = (GdkColor *)value;
2123   GString *string = (GString *)data;
2124
2125   g_string_append_printf (string, "%s: #%04x%04x%04x\n",
2126                           name, color->red, color->green, color->blue);
2127 }
2128
2129 static gchar *
2130 get_color_scheme (GtkSettings *settings)
2131 {
2132   ColorSchemeData *data;
2133   GString *string;
2134
2135   settings_update_color_scheme (settings);
2136
2137   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2138                                                 "gtk-color-scheme");
2139
2140   string = g_string_new ("");
2141
2142   g_hash_table_foreach (data->color_hash, append_color_scheme, string);
2143
2144   return g_string_free (string, FALSE);
2145 }
2146
2147
2148 #define __GTK_SETTINGS_C__
2149 #include "gtkaliasdef.c"