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 #GtkSettings:gtk-cursor-blink-timeout setting,
 224    * which allows 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    * #GtkSettings:gtk-cursor-blink 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    * #GtkSettings:gtk-tooltip-browse-mode-timeout), it will take the
 591    * amount of 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 #GtkSettings:gtk-color-scheme
 691    * setting, 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. The command may also contain a %s
 737    * placeholder, which will get replaced by the path to a file
 738    * containing the print settings in the format produced by
 739    * gtk_print_settings_to_file().
 740    *
 741    * The preview application is responsible for removing the pdf file
 742    * and the print settings file when it is done.
 743    *
 744    * Since: 2.10
 745    */
 746   result = settings_install_property_parser (class,
 747                                              g_param_spec_string ("gtk-print-preview-command",
 748                                                                   P_("Default command to run when displaying a print preview"),
 749                                                                   P_("Command to run when displaying a print preview"),
 750                                                                   GTK_PRINT_PREVIEW_COMMAND,
 751                                                                   GTK_PARAM_READWRITE),
 752                                              NULL);
 753   g_assert (result == PROP_PRINT_PREVIEW_COMMAND);
 754
 755   /**
 756    * GtkSettings:gtk-enable-mnemonics:
 757    *
 758    * Whether labels and menu items should have visible mnemonics which
 759    * can be activated.
 760    *
 761    * Since: 2.12
 762    */
 763   result = settings_install_property_parser (class,
 764                                              g_param_spec_boolean ("gtk-enable-mnemonics",
 765                                                                    P_("Enable Mnemonics"),
 766                                                                    P_("Whether labels should have mnemonics"),
 767                                                                    TRUE,
 768                                                                    GTK_PARAM_READWRITE),
 769                                              NULL);
 770   g_assert (result == PROP_ENABLE_MNEMONICS);
 771
 772   /**
 773    * GtkSettings:gtk-enable-accels:
 774    *
 775    * Whether menu items should have visible accelerators which can be
 776    * activated.
 777    *
 778    * Since: 2.12
 779    */
 780   result = settings_install_property_parser (class,
 781                                              g_param_spec_boolean ("gtk-enable-accels",
 782                                                                    P_("Enable Accelerators"),
 783                                                                    P_("Whether menu items should have accelerators"),
 784                                                                    TRUE,
 785                                                                    GTK_PARAM_READWRITE),
 786                                              NULL);
 787   g_assert (result == PROP_ENABLE_ACCELS);
 788 }
 789
 790 static void
 791 gtk_settings_finalize (GObject *object)
 792 {
 793   GtkSettings *settings = GTK_SETTINGS (object);
 794   guint i;
 795
 796   object_list = g_slist_remove (object_list, settings);
 797
 798   _gtk_rc_context_destroy (settings);
 799
 800   for (i = 0; i < class_n_properties; i++)
 801     g_value_unset (&settings->property_values[i].value);
 802   g_free (settings->property_values);
 803
 804   g_datalist_clear (&settings->queued_settings);
 805
 806   G_OBJECT_CLASS (gtk_settings_parent_class)->finalize (object);
 807 }
 808
 809 /**
 810  * gtk_settings_get_for_screen:
 811  * @screen : a #GdkScreen.
 812  *
 813  * Gets the #GtkSettings object for @screen, creating it if necessary.
 814  *
 815  * Return value: a #GtkSettings object.
 816  *
 817  * Since: 2.2
 818  */
 819 GtkSettings*
 820 gtk_settings_get_for_screen (GdkScreen *screen)
 821 {
 822   GtkSettings *settings;
 823
 824   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 825
 826   settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
 827   if (!settings)
 828     {
 829       settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
 830       settings->screen = screen;
 831       g_object_set_data_full (G_OBJECT (screen), I_("gtk-settings"),
 832                               settings, g_object_unref);
 833
 834       gtk_rc_reparse_all_for_settings (settings, TRUE);
 835       settings_update_double_click (settings);
 836 #ifdef GDK_WINDOWING_X11
 837       settings_update_cursor_theme (settings);
 838       settings_update_resolution (settings);
 839       settings_update_font_options (settings);
 840 #endif
 841       settings_update_color_scheme (settings);
 842     }
 843
 844   return settings;
 845 }
 846
 847 /**
 848  * gtk_settings_get_default:
 849  *
 850  * Gets the #GtkSettings object for the default GDK screen, creating
 851  * it if necessary. See gtk_settings_get_for_screen().
 852  *
 853  * Return value: a #GtkSettings object. If there is no default
 854  *  screen, then returns %NULL.
 855  **/
 856 GtkSettings*
 857 gtk_settings_get_default (void)
 858 {
 859   GdkScreen *screen = gdk_screen_get_default ();
 860
 861   if (screen)
 862     return gtk_settings_get_for_screen (screen);
 863   else
 864     return NULL;
 865 }
 866
 867 static void
 868 gtk_settings_set_property (GObject      *object,
 869                            guint         property_id,
 870                            const GValue *value,
 871                            GParamSpec   *pspec)
 872 {
 873   GtkSettings *settings = GTK_SETTINGS (object);
 874
 875   g_value_copy (value, &settings->property_values[property_id - 1].value);
 876   settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
 877
 878   if (pspec->param_id == PROP_COLOR_SCHEME)
 879     merge_color_scheme (settings, value, GTK_SETTINGS_SOURCE_APPLICATION);
 880 }
 881
 882 static void
 883 gtk_settings_get_property (GObject     *object,
 884                            guint        property_id,
 885                            GValue      *value,
 886                            GParamSpec  *pspec)
 887 {
 888   GtkSettings *settings = GTK_SETTINGS (object);
 889   GType value_type = G_VALUE_TYPE (value);
 890   GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
 891
 892   /* handle internal properties */
 893   switch (property_id)
 894     {
 895     case PROP_COLOR_HASH:
 896       g_value_set_boxed (value, get_color_hash (settings));
 897       return;
 898     case PROP_COLOR_SCHEME:
 899       g_value_take_string (value, get_color_scheme (settings));
 900       return;
 901     default: ;
 902     }
 903
 904   /* For enums and strings, we need to get the value as a string,
 905    * not as an int, since we support using names/nicks as the setting
 906    * value.
 907    */
 908   if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
 909        !(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
 910       g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
 911       g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
 912     {
 913       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 914           !gdk_screen_get_setting (settings->screen, pspec->name, value))
 915         g_value_copy (&settings->property_values[property_id - 1].value, value);
 916       else
 917         g_param_value_validate (pspec, value);
 918     }
 919   else
 920     {
 921       GValue val = { 0, };
 922
 923       /* Try to get xsetting as a string and parse it. */
 924
 925       g_value_init (&val, G_TYPE_STRING);
 926
 927       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 928           !gdk_screen_get_setting (settings->screen, pspec->name, &val))
 929         {
 930           g_value_copy (&settings->property_values[property_id - 1].value, value);
 931         }
 932       else
 933         {
 934           GValue tmp_value = { 0, };
 935           GValue gstring_value = { 0, };
 936           GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
 937
 938           g_value_init (&gstring_value, G_TYPE_GSTRING);
 939           g_value_take_boxed (&gstring_value,
 940                               g_string_new (g_value_get_string (&val)));
 941
 942           g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 943
 944           if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
 945                                                      pspec, &tmp_value))
 946             {
 947               g_value_copy (&tmp_value, value);
 948               g_param_value_validate (pspec, value);
 949             }
 950           else
 951             {
 952               g_value_copy (&settings->property_values[property_id - 1].value, value);
 953             }
 954
 955           g_value_unset (&gstring_value);
 956           g_value_unset (&tmp_value);
 957         }
 958
 959       g_value_unset (&val);
 960     }
 961 }
 962
 963 static void
 964 gtk_settings_notify (GObject    *object,
 965                      GParamSpec *pspec)
 966 {
 967   GtkSettings *settings = GTK_SETTINGS (object);
 968   guint property_id = pspec->param_id;
 969
 970   if (settings->screen == NULL) /* initialization */
 971     return;
 972
 973   switch (property_id)
 974     {
 975     case PROP_MODULES:
 976       settings_update_modules (settings);
 977       break;
 978     case PROP_DOUBLE_CLICK_TIME:
 979     case PROP_DOUBLE_CLICK_DISTANCE:
 980       settings_update_double_click (settings);
 981       break;
 982     case PROP_COLOR_SCHEME:
 983       settings_update_color_scheme (settings);
 984       break;
 985 #ifdef GDK_WINDOWING_X11
 986     case PROP_XFT_DPI:
 987       settings_update_resolution (settings);
 988       /* This is a hack because with gtk_rc_reset_styles() doesn't get
 989        * widgets with gtk_widget_style_set(), and also causes more
 990        * recomputation than necessary.
 991        */
 992       gtk_rc_reset_styles (GTK_SETTINGS (object));
 993       break;
 994     case PROP_XFT_ANTIALIAS:
 995     case PROP_XFT_HINTING:
 996     case PROP_XFT_HINTSTYLE:
 997     case PROP_XFT_RGBA:
 998       settings_update_font_options (settings);
 999       gtk_rc_reset_styles (GTK_SETTINGS (object));
1000       break;
1001     case PROP_CURSOR_THEME_NAME:
1002     case PROP_CURSOR_THEME_SIZE:
1003       settings_update_cursor_theme (settings);
1004       break;
1005 #endif /* GDK_WINDOWING_X11 */
1006     }
1007 }
1008
1009 gboolean
1010 _gtk_settings_parse_convert (GtkRcPropertyParser parser,
1011                              const GValue       *src_value,
1012                              GParamSpec         *pspec,
1013                              GValue             *dest_value)
1014 {
1015   gboolean success = FALSE;
1016
1017   g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
1018
1019   if (parser)
1020     {
1021       GString *gstring;
1022       gboolean free_gstring = TRUE;
1023
1024       if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1025         {
1026           gstring = g_value_get_boxed (src_value);
1027           free_gstring = FALSE;
1028         }
1029       else if (G_VALUE_HOLDS_LONG (src_value))
1030         {
1031           gstring = g_string_new (NULL);
1032           g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
1033         }
1034       else if (G_VALUE_HOLDS_DOUBLE (src_value))
1035         {
1036           gstring = g_string_new (NULL);
1037           g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
1038         }
1039       else if (G_VALUE_HOLDS_STRING (src_value))
1040         {
1041           gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
1042
1043           gstring = g_string_new ("\"");
1044           g_string_append (gstring, tstr);
1045           g_string_append_c (gstring, '\"');
1046           g_free (tstr);
1047         }
1048       else
1049         {
1050           g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
1051           gstring = NULL; /* silence compiler */
1052         }
1053
1054       success = (parser (pspec, gstring, dest_value) &&
1055                  !g_param_value_validate (pspec, dest_value));
1056
1057       if (free_gstring)
1058         g_string_free (gstring, TRUE);
1059     }
1060   else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
1061     {
1062       if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
1063         {
1064           GString *gstring = g_value_get_boxed (src_value);
1065
1066           g_value_set_string (dest_value, gstring ? gstring->str : NULL);
1067           success = !g_param_value_validate (pspec, dest_value);
1068         }
1069     }
1070   else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
1071     success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
1072
1073   return success;
1074 }
1075
1076 static void
1077 apply_queued_setting (GtkSettings             *data,
1078                       GParamSpec              *pspec,
1079                       GtkSettingsValuePrivate *qvalue)
1080 {
1081   GValue tmp_value = { 0, };
1082   GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
1083
1084   g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1085   if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
1086                                    pspec, &tmp_value))
1087     {
1088       if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
1089         {
1090           g_value_copy (&tmp_value, &data->property_values[pspec->param_id - 1].value);
1091           data->property_values[pspec->param_id - 1].source = qvalue->source;
1092           g_object_notify (G_OBJECT (data), g_param_spec_get_name (pspec));
1093         }
1094
1095       if (pspec->param_id == PROP_COLOR_SCHEME)
1096         merge_color_scheme (data, &tmp_value, qvalue->source);
1097     }
1098   else
1099     {
1100       gchar *debug = g_strdup_value_contents (&qvalue->public.value);
1101
1102       g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
1103                  qvalue->public.origin ? qvalue->public.origin : "(for origin information, set GTK_DEBUG)",
1104                  pspec->name,
1105                  g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
1106                  debug,
1107                  G_VALUE_TYPE_NAME (&tmp_value));
1108       g_free (debug);
1109     }
1110   g_value_unset (&tmp_value);
1111 }
1112
1113 static guint
1114 settings_install_property_parser (GtkSettingsClass   *class,
1115                                   GParamSpec         *pspec,
1116                                   GtkRcPropertyParser parser)
1117 {
1118   GSList *node, *next;
1119
1120   switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
1121     {
1122     case G_TYPE_BOOLEAN:
1123     case G_TYPE_UCHAR:
1124     case G_TYPE_CHAR:
1125     case G_TYPE_UINT:
1126     case G_TYPE_INT:
1127     case G_TYPE_ULONG:
1128     case G_TYPE_LONG:
1129     case G_TYPE_FLOAT:
1130     case G_TYPE_DOUBLE:
1131     case G_TYPE_STRING:
1132       break;
1133     case G_TYPE_BOXED:
1134       if (strcmp (g_param_spec_get_name (pspec), "color-hash") == 0)
1135         {
1136           break;
1137         }
1138       /* fall through */
1139     default:
1140       if (!parser)
1141         {
1142           g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
1143                      pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
1144           return 0;
1145         }
1146     }
1147   if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
1148     {
1149       g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
1150                  pspec->name);
1151       return 0;
1152     }
1153
1154   for (node = object_list; node; node = node->next)
1155     g_object_freeze_notify (node->data);
1156
1157   g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
1158   g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
1159
1160   for (node = object_list; node; node = node->next)
1161     {
1162       GtkSettings *settings = node->data;
1163       GtkSettingsValuePrivate *qvalue;
1164
1165       settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
1166       settings->property_values[class_n_properties - 1].value.g_type = 0;
1167       g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
1168       g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
1169       settings->property_values[class_n_properties - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
1170       g_object_notify (G_OBJECT (settings), pspec->name);
1171
1172       qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
1173       if (qvalue)
1174         apply_queued_setting (settings, pspec, qvalue);
1175     }
1176
1177   for (node = object_list; node; node = next)
1178     {
1179       next = node->next;
1180       g_object_thaw_notify (node->data);
1181     }
1182
1183   return class_n_properties;
1184 }
1185
1186 GtkRcPropertyParser
1187 _gtk_rc_property_parser_from_type (GType type)
1188 {
1189   if (type == GDK_TYPE_COLOR)
1190     return gtk_rc_property_parse_color;
1191   else if (type == GTK_TYPE_REQUISITION)
1192     return gtk_rc_property_parse_requisition;
1193   else if (type == GTK_TYPE_BORDER)
1194     return gtk_rc_property_parse_border;
1195   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
1196     return gtk_rc_property_parse_enum;
1197   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
1198     return gtk_rc_property_parse_flags;
1199   else
1200     return NULL;
1201 }
1202
1203 void
1204 gtk_settings_install_property (GParamSpec *pspec)
1205 {
1206   GtkRcPropertyParser parser;
1207
1208   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1209
1210   parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
1211
1212   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
1213 }
1214
1215 void
1216 gtk_settings_install_property_parser (GParamSpec          *pspec,
1217                                       GtkRcPropertyParser  parser)
1218 {
1219   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
1220   g_return_if_fail (parser != NULL);
1221
1222   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
1223 }
1224
1225 static void
1226 free_value (gpointer data)
1227 {
1228   GtkSettingsValuePrivate *qvalue = data;
1229
1230   g_value_unset (&qvalue->public.value);
1231   g_free (qvalue->public.origin);
1232   g_free (qvalue);
1233 }
1234
1235 static void
1236 gtk_settings_set_property_value_internal (GtkSettings            *settings,
1237                                           const gchar            *prop_name,
1238                                           const GtkSettingsValue *new_value,
1239                                           GtkSettingsSource       source)
1240 {
1241   GtkSettingsValuePrivate *qvalue;
1242   GParamSpec *pspec;
1243   gchar *name;
1244   GQuark name_quark;
1245
1246   if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
1247       !G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
1248       !G_VALUE_HOLDS_STRING (&new_value->value) &&
1249       !G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
1250     {
1251       g_warning (G_STRLOC ": value type invalid");
1252       return;
1253     }
1254
1255   name = g_strdup (prop_name);
1256   g_strcanon (name, G_CSET_DIGITS "-" G_CSET_a_2_z G_CSET_A_2_Z, '-');
1257   name_quark = g_quark_from_string (name);
1258   g_free (name);
1259
1260   qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
1261   if (!qvalue)
1262     {
1263       qvalue = g_new0 (GtkSettingsValuePrivate, 1);
1264       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
1265     }
1266   else
1267     {
1268       g_free (qvalue->public.origin);
1269       g_value_unset (&qvalue->public.value);
1270     }
1271   qvalue->public.origin = g_strdup (new_value->origin);
1272   g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
1273   g_value_copy (&new_value->value, &qvalue->public.value);
1274   qvalue->source = source;
1275   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
1276   if (pspec)
1277     apply_queued_setting (settings, pspec, qvalue);
1278 }
1279
1280 void
1281 gtk_settings_set_property_value (GtkSettings            *settings,
1282                                  const gchar            *prop_name,
1283                                  const GtkSettingsValue *new_value)
1284 {
1285   g_return_if_fail (GTK_SETTINGS (settings));
1286   g_return_if_fail (prop_name != NULL);
1287   g_return_if_fail (new_value != NULL);
1288
1289   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1290                                             GTK_SETTINGS_SOURCE_APPLICATION);
1291 }
1292
1293 void
1294 _gtk_settings_set_property_value_from_rc (GtkSettings            *settings,
1295                                           const gchar            *prop_name,
1296                                           const GtkSettingsValue *new_value)
1297 {
1298   g_return_if_fail (GTK_SETTINGS (settings));
1299   g_return_if_fail (prop_name != NULL);
1300   g_return_if_fail (new_value != NULL);
1301
1302   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1303                                             GTK_SETTINGS_SOURCE_RC_FILE);
1304 }
1305
1306 void
1307 gtk_settings_set_string_property (GtkSettings *settings,
1308                                   const gchar *name,
1309                                   const gchar *v_string,
1310                                   const gchar *origin)
1311 {
1312   GtkSettingsValue svalue = { NULL, { 0, }, };
1313
1314   g_return_if_fail (GTK_SETTINGS (settings));
1315   g_return_if_fail (name != NULL);
1316   g_return_if_fail (v_string != NULL);
1317
1318   svalue.origin = (gchar*) origin;
1319   g_value_init (&svalue.value, G_TYPE_STRING);
1320   g_value_set_static_string (&svalue.value, v_string);
1321   gtk_settings_set_property_value (settings, name, &svalue);
1322   g_value_unset (&svalue.value);
1323 }
1324
1325 void
1326 gtk_settings_set_long_property (GtkSettings *settings,
1327                                 const gchar *name,
1328                                 glong        v_long,
1329                                 const gchar *origin)
1330 {
1331   GtkSettingsValue svalue = { NULL, { 0, }, };
1332
1333   g_return_if_fail (GTK_SETTINGS (settings));
1334   g_return_if_fail (name != NULL);
1335
1336   svalue.origin = (gchar*) origin;
1337   g_value_init (&svalue.value, G_TYPE_LONG);
1338   g_value_set_long (&svalue.value, v_long);
1339   gtk_settings_set_property_value (settings, name, &svalue);
1340   g_value_unset (&svalue.value);
1341 }
1342
1343 void
1344 gtk_settings_set_double_property (GtkSettings *settings,
1345                                   const gchar *name,
1346                                   gdouble      v_double,
1347                                   const gchar *origin)
1348 {
1349   GtkSettingsValue svalue = { NULL, { 0, }, };
1350
1351   g_return_if_fail (GTK_SETTINGS (settings));
1352   g_return_if_fail (name != NULL);
1353
1354   svalue.origin = (gchar*) origin;
1355   g_value_init (&svalue.value, G_TYPE_DOUBLE);
1356   g_value_set_double (&svalue.value, v_double);
1357   gtk_settings_set_property_value (settings, name, &svalue);
1358   g_value_unset (&svalue.value);
1359 }
1360
1361 /**
1362  * gtk_rc_property_parse_color:
1363  * @pspec: a #GParamSpec
1364  * @gstring: the #GString to be parsed
1365  * @property_value: a #GValue which must hold #GdkColor values.
1366  *
1367  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1368  * or gtk_widget_class_install_style_property_parser() which parses a
1369  * color given either by its name or in the form
1370  * <literal>{ red, green, blue }</literal> where %red, %green and
1371  * %blue are integers between 0 and 65535 or floating-point numbers
1372  * between 0 and 1.
1373  *
1374  * Return value: %TRUE if @gstring could be parsed and @property_value
1375  * has been set to the resulting #GdkColor.
1376  **/
1377 gboolean
1378 gtk_rc_property_parse_color (const GParamSpec *pspec,
1379                              const GString    *gstring,
1380                              GValue           *property_value)
1381 {
1382   GdkColor color = { 0, 0, 0, 0, };
1383   GScanner *scanner;
1384   gboolean success;
1385
1386   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1387   g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
1388
1389   scanner = gtk_rc_scanner_new ();
1390   g_scanner_input_text (scanner, gstring->str, gstring->len);
1391   if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
1392       g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
1393     {
1394       g_value_set_boxed (property_value, &color);
1395       success = TRUE;
1396     }
1397   else
1398     success = FALSE;
1399   g_scanner_destroy (scanner);
1400
1401   return success;
1402 }
1403
1404 /**
1405  * gtk_rc_property_parse_enum:
1406  * @pspec: a #GParamSpec
1407  * @gstring: the #GString to be parsed
1408  * @property_value: a #GValue which must hold enum values.
1409  *
1410  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1411  * or gtk_widget_class_install_style_property_parser() which parses a single
1412  * enumeration value.
1413  *
1414  * The enumeration value can be specified by its name, its nickname or
1415  * its numeric value. For consistency with flags parsing, the value
1416  * may be surrounded by parentheses.
1417  *
1418  * Return value: %TRUE if @gstring could be parsed and @property_value
1419  * has been set to the resulting #GEnumValue.
1420  **/
1421 gboolean
1422 gtk_rc_property_parse_enum (const GParamSpec *pspec,
1423                             const GString    *gstring,
1424                             GValue           *property_value)
1425 {
1426   gboolean need_closing_brace = FALSE, success = FALSE;
1427   GScanner *scanner;
1428   GEnumValue *enum_value = NULL;
1429
1430   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1431   g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
1432
1433   scanner = gtk_rc_scanner_new ();
1434   g_scanner_input_text (scanner, gstring->str, gstring->len);
1435
1436   /* we just want to parse _one_ value, but for consistency with flags parsing
1437    * we support optional parenthesis
1438    */
1439   g_scanner_get_next_token (scanner);
1440   if (scanner->token == '(')
1441     {
1442       need_closing_brace = TRUE;
1443       g_scanner_get_next_token (scanner);
1444     }
1445   if (scanner->token == G_TOKEN_IDENTIFIER)
1446     {
1447       GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
1448
1449       enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
1450       if (!enum_value)
1451         enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
1452       if (enum_value)
1453         {
1454           g_value_set_enum (property_value, enum_value->value);
1455           success = TRUE;
1456         }
1457     }
1458   else if (scanner->token == G_TOKEN_INT)
1459     {
1460       g_value_set_enum (property_value, scanner->value.v_int);
1461       success = TRUE;
1462     }
1463   if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
1464     success = FALSE;
1465   if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
1466     success = FALSE;
1467
1468   g_scanner_destroy (scanner);
1469
1470   return success;
1471 }
1472
1473 static guint
1474 parse_flags_value (GScanner    *scanner,
1475                    GFlagsClass *class,
1476                    guint       *number)
1477 {
1478   g_scanner_get_next_token (scanner);
1479   if (scanner->token == G_TOKEN_IDENTIFIER)
1480     {
1481       GFlagsValue *flags_value;
1482
1483       flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
1484       if (!flags_value)
1485         flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
1486       if (flags_value)
1487         {
1488           *number |= flags_value->value;
1489           return G_TOKEN_NONE;
1490         }
1491     }
1492   else if (scanner->token == G_TOKEN_INT)
1493     {
1494       *number |= scanner->value.v_int;
1495       return G_TOKEN_NONE;
1496     }
1497   return G_TOKEN_IDENTIFIER;
1498 }
1499
1500 /**
1501  * gtk_rc_property_parse_flags:
1502  * @pspec: a #GParamSpec
1503  * @gstring: the #GString to be parsed
1504  * @property_value: a #GValue which must hold flags values.
1505  *
1506  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1507  * or gtk_widget_class_install_style_property_parser() which parses flags.
1508  *
1509  * Flags can be specified by their name, their nickname or
1510  * numerically. Multiple flags can be specified in the form
1511  * <literal>"( flag1 | flag2 | ... )"</literal>.
1512  *
1513  * Return value: %TRUE if @gstring could be parsed and @property_value
1514  * has been set to the resulting flags value.
1515  **/
1516 gboolean
1517 gtk_rc_property_parse_flags (const GParamSpec *pspec,
1518                              const GString    *gstring,
1519                              GValue           *property_value)
1520 {
1521   GFlagsClass *class;
1522    gboolean success = FALSE;
1523   GScanner *scanner;
1524
1525   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1526   g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
1527
1528   class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
1529   scanner = gtk_rc_scanner_new ();
1530   g_scanner_input_text (scanner, gstring->str, gstring->len);
1531
1532   /* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
1533   if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
1534       scanner->next_token == G_TOKEN_INT)
1535     {
1536       guint token, flags_value = 0;
1537
1538       token = parse_flags_value (scanner, class, &flags_value);
1539
1540       if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1541         {
1542           success = TRUE;
1543           g_value_set_flags (property_value, flags_value);
1544         }
1545
1546     }
1547   else if (g_scanner_get_next_token (scanner) == '(')
1548     {
1549       guint token, flags_value = 0;
1550
1551       /* parse first value */
1552       token = parse_flags_value (scanner, class, &flags_value);
1553
1554       /* parse nth values, preceeded by '|' */
1555       while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
1556         token = parse_flags_value (scanner, class, &flags_value);
1557
1558       /* done, last token must have closed expression */
1559       if (token == G_TOKEN_NONE && scanner->token == ')' &&
1560           g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1561         {
1562           g_value_set_flags (property_value, flags_value);
1563           success = TRUE;
1564         }
1565     }
1566   g_scanner_destroy (scanner);
1567
1568   return success;
1569 }
1570
1571 static gboolean
1572 get_braced_int (GScanner *scanner,
1573                 gboolean  first,
1574                 gboolean  last,
1575                 gint     *value)
1576 {
1577   if (first)
1578     {
1579       g_scanner_get_next_token (scanner);
1580       if (scanner->token != '{')
1581         return FALSE;
1582     }
1583
1584   g_scanner_get_next_token (scanner);
1585   if (scanner->token != G_TOKEN_INT)
1586     return FALSE;
1587
1588   *value = scanner->value.v_int;
1589
1590   if (last)
1591     {
1592       g_scanner_get_next_token (scanner);
1593       if (scanner->token != '}')
1594         return FALSE;
1595     }
1596   else
1597     {
1598       g_scanner_get_next_token (scanner);
1599       if (scanner->token != ',')
1600         return FALSE;
1601     }
1602
1603   return TRUE;
1604 }
1605
1606 /**
1607  * gtk_rc_property_parse_requisition:
1608  * @pspec: a #GParamSpec
1609  * @gstring: the #GString to be parsed
1610  * @property_value: a #GValue which must hold boxed values.
1611  *
1612  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1613  * or gtk_widget_class_install_style_property_parser() which parses a
1614  * requisition in the form
1615  * <literal>"{ width, height }"</literal> for integers %width and %height.
1616  *
1617  * Return value: %TRUE if @gstring could be parsed and @property_value
1618  * has been set to the resulting #GtkRequisition.
1619  **/
1620 gboolean
1621 gtk_rc_property_parse_requisition  (const GParamSpec *pspec,
1622                                     const GString    *gstring,
1623                                     GValue           *property_value)
1624 {
1625   GtkRequisition requisition;
1626   GScanner *scanner;
1627   gboolean success = FALSE;
1628
1629   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1630   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1631
1632   scanner = gtk_rc_scanner_new ();
1633   g_scanner_input_text (scanner, gstring->str, gstring->len);
1634
1635   if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
1636       get_braced_int (scanner, FALSE, TRUE, &requisition.height))
1637     {
1638       g_value_set_boxed (property_value, &requisition);
1639       success = TRUE;
1640     }
1641
1642   g_scanner_destroy (scanner);
1643
1644   return success;
1645 }
1646
1647 /**
1648  * gtk_rc_property_parse_border:
1649  * @pspec: a #GParamSpec
1650  * @gstring: the #GString to be parsed
1651  * @property_value: a #GValue which must hold boxed values.
1652  *
1653  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1654  * or gtk_widget_class_install_style_property_parser() which parses
1655  * borders in the form
1656  * <literal>"{ left, right, top, bottom }"</literal> for integers
1657  * %left, %right, %top and %bottom.
1658  *
1659  * Return value: %TRUE if @gstring could be parsed and @property_value
1660  * has been set to the resulting #GtkBorder.
1661  **/
1662 gboolean
1663 gtk_rc_property_parse_border (const GParamSpec *pspec,
1664                               const GString    *gstring,
1665                               GValue           *property_value)
1666 {
1667   GtkBorder border;
1668   GScanner *scanner;
1669   gboolean success = FALSE;
1670
1671   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1672   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1673
1674   scanner = gtk_rc_scanner_new ();
1675   g_scanner_input_text (scanner, gstring->str, gstring->len);
1676
1677   if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
1678       get_braced_int (scanner, FALSE, FALSE, &border.right) &&
1679       get_braced_int (scanner, FALSE, FALSE, &border.top) &&
1680       get_braced_int (scanner, FALSE, TRUE, &border.bottom))
1681     {
1682       g_value_set_boxed (property_value, &border);
1683       success = TRUE;
1684     }
1685
1686   g_scanner_destroy (scanner);
1687
1688   return success;
1689 }
1690
1691 void
1692 _gtk_settings_handle_event (GdkEventSetting *event)
1693 {
1694   GtkSettings *settings;
1695   GParamSpec *pspec;
1696   guint property_id;
1697
1698   settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
1699   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name);
1700
1701   if (pspec)
1702     {
1703       property_id = pspec->param_id;
1704
1705       if (property_id == PROP_COLOR_SCHEME)
1706         {
1707           GValue value = { 0, };
1708
1709           g_value_init (&value, G_TYPE_STRING);
1710           if (!gdk_screen_get_setting (settings->screen, pspec->name, &value))
1711             g_value_set_static_string (&value, "");
1712           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
1713           g_value_unset (&value);
1714         }
1715
1716       g_object_notify (G_OBJECT (settings), pspec->name);
1717    }
1718 }
1719
1720 static void
1721 reset_rc_values_foreach (GQuark    key_id,
1722                          gpointer  data,
1723                          gpointer  user_data)
1724 {
1725   GtkSettingsValuePrivate *qvalue = data;
1726   GSList **to_reset = user_data;
1727
1728   if (qvalue->source == GTK_SETTINGS_SOURCE_RC_FILE)
1729     *to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
1730 }
1731
1732 void
1733 _gtk_settings_reset_rc_values (GtkSettings *settings)
1734 {
1735   GSList *to_reset = NULL;
1736   GSList *tmp_list;
1737   GParamSpec **pspecs, **p;
1738   gint i;
1739
1740   /* Remove any queued settings
1741    */
1742   g_datalist_foreach (&settings->queued_settings,
1743                       reset_rc_values_foreach,
1744                       &to_reset);
1745
1746   for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
1747     {
1748       GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
1749       g_datalist_id_remove_data (&settings->queued_settings, key_id);
1750     }
1751
1752    g_slist_free (to_reset);
1753
1754   /* Now reset the active settings
1755    */
1756   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
1757   i = 0;
1758
1759   g_object_freeze_notify (G_OBJECT (settings));
1760   for (p = pspecs; *p; p++)
1761     {
1762       if (settings->property_values[i].source == GTK_SETTINGS_SOURCE_RC_FILE)
1763         {
1764           GParamSpec *pspec = *p;
1765
1766           g_param_value_set_default (pspec, &settings->property_values[i].value);
1767           g_object_notify (G_OBJECT (settings), pspec->name);
1768         }
1769       i++;
1770     }
1771   g_object_thaw_notify (G_OBJECT (settings));
1772   g_free (pspecs);
1773 }
1774
1775 static void
1776 settings_update_double_click (GtkSettings *settings)
1777 {
1778   if (gdk_screen_get_number (settings->screen) == 0)
1779     {
1780       GdkDisplay *display = gdk_screen_get_display (settings->screen);
1781       gint double_click_time;
1782       gint double_click_distance;
1783
1784       g_object_get (settings,
1785                     "gtk-double-click-time", &double_click_time,
1786                     "gtk-double-click-distance", &double_click_distance,
1787                     NULL);
1788
1789       gdk_display_set_double_click_time (display, double_click_time);
1790       gdk_display_set_double_click_distance (display, double_click_distance);
1791     }
1792 }
1793
1794 static void
1795 settings_update_modules (GtkSettings *settings)
1796 {
1797   gchar *modules;
1798
1799   g_object_get (settings,
1800                 "gtk-modules", &modules,
1801                 NULL);
1802
1803   _gtk_modules_settings_changed (settings, modules);
1804
1805   g_free (modules);
1806 }
1807
1808 #ifdef GDK_WINDOWING_X11
1809 static void
1810 settings_update_cursor_theme (GtkSettings *settings)
1811 {
1812   GdkDisplay *display = gdk_screen_get_display (settings->screen);
1813   gchar *theme = NULL;
1814   gint size = 0;
1815
1816   g_object_get (settings,
1817                 "gtk-cursor-theme-name", &theme,
1818                 "gtk-cursor-theme-size", &size,
1819                 NULL);
1820
1821   gdk_x11_display_set_cursor_theme (display, theme, size);
1822
1823   g_free (theme);
1824 }
1825
1826 static void
1827 settings_update_font_options (GtkSettings *settings)
1828 {
1829   gint hinting;
1830   gchar *hint_style_str;
1831   cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_DEFAULT;
1832   gint antialias;
1833   cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_DEFAULT;
1834   gchar *rgba_str;
1835   cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
1836   cairo_font_options_t *options;
1837
1838   g_object_get (settings,
1839                 "gtk-xft-antialias", &antialias,
1840                 "gtk-xft-hinting", &hinting,
1841                 "gtk-xft-hintstyle", &hint_style_str,
1842                 "gtk-xft-rgba", &rgba_str,
1843                 NULL);
1844
1845   options = cairo_font_options_create ();
1846
1847   if (hinting >= 0 && !hinting)
1848     {
1849       hint_style = CAIRO_HINT_STYLE_NONE;
1850     }
1851   else if (hint_style_str)
1852     {
1853       if (strcmp (hint_style_str, "hintnone") == 0)
1854         hint_style = CAIRO_HINT_STYLE_NONE;
1855       else if (strcmp (hint_style_str, "hintslight") == 0)
1856         hint_style = CAIRO_HINT_STYLE_SLIGHT;
1857       else if (strcmp (hint_style_str, "hintmedium") == 0)
1858         hint_style = CAIRO_HINT_STYLE_MEDIUM;
1859       else if (strcmp (hint_style_str, "hintfull") == 0)
1860         hint_style = CAIRO_HINT_STYLE_FULL;
1861     }
1862
1863   g_free (hint_style_str);
1864
1865   cairo_font_options_set_hint_style (options, hint_style);
1866
1867   if (rgba_str)
1868     {
1869       if (strcmp (rgba_str, "rgb") == 0)
1870         subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
1871       else if (strcmp (rgba_str, "bgr") == 0)
1872         subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
1873       else if (strcmp (rgba_str, "vrgb") == 0)
1874         subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
1875       else if (strcmp (rgba_str, "vbgr") == 0)
1876         subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
1877
1878       g_free (rgba_str);
1879     }
1880
1881   cairo_font_options_set_subpixel_order (options, subpixel_order);
1882
1883   if (antialias >= 0 && !antialias)
1884     antialias_mode = CAIRO_ANTIALIAS_NONE;
1885   else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
1886     antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
1887   else if (antialias >= 0)
1888     antialias_mode = CAIRO_ANTIALIAS_GRAY;
1889
1890   cairo_font_options_set_antialias (options, antialias_mode);
1891
1892   gdk_screen_set_font_options (settings->screen, options);
1893
1894   cairo_font_options_destroy (options);
1895 }
1896
1897 static void
1898 settings_update_resolution (GtkSettings *settings)
1899 {
1900   gint dpi_int;
1901   double dpi;
1902
1903   g_object_get (settings,
1904                 "gtk-xft-dpi", &dpi_int,
1905                 NULL);
1906
1907   if (dpi_int > 0)
1908     dpi = dpi_int / 1024.;
1909   else
1910     dpi = -1.;
1911
1912   gdk_screen_set_resolution (settings->screen, dpi);
1913 }
1914 #endif
1915
1916 typedef struct {
1917   GHashTable *color_hash;
1918   GHashTable *tables[GTK_SETTINGS_SOURCE_APPLICATION + 1];
1919   gchar *lastentry[GTK_SETTINGS_SOURCE_APPLICATION + 1];
1920 } ColorSchemeData;
1921
1922 static void
1923 color_scheme_data_free (ColorSchemeData *data)
1924 {
1925   gint i;
1926
1927   g_hash_table_unref (data->color_hash);
1928
1929   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
1930     {
1931       if (data->tables[i])
1932         g_hash_table_unref (data->tables[i]);
1933       g_free (data->lastentry[i]);
1934     }
1935
1936   g_free (data);
1937 }
1938
1939 static void
1940 settings_update_color_scheme (GtkSettings *settings)
1941 {
1942   if (!g_object_get_data (G_OBJECT (settings), "gtk-color-scheme"))
1943     {
1944       ColorSchemeData *data;
1945       GValue value = { 0, };
1946
1947       data = g_new0 (ColorSchemeData, 1);
1948       data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
1949                                                 (GDestroyNotify) gdk_color_free);
1950       g_object_set_data_full (G_OBJECT (settings), "gtk-color-scheme",
1951                               data, (GDestroyNotify) color_scheme_data_free);
1952
1953       g_value_init (&value, G_TYPE_STRING);
1954       if (gdk_screen_get_setting (settings->screen, "gtk-color-scheme", &value))
1955         {
1956           merge_color_scheme (settings, &value, GTK_SETTINGS_SOURCE_XSETTING);
1957           g_value_unset (&value);
1958         }
1959    }
1960 }
1961
1962 static gboolean
1963 add_color_to_hash (gchar      *name,
1964                    GdkColor   *color,
1965                    GHashTable *target)
1966 {
1967   GdkColor *old;
1968
1969   old = g_hash_table_lookup (target, name);
1970   if (!old || !gdk_color_equal (old, color))
1971     {
1972       g_hash_table_insert (target, g_strdup (name), gdk_color_copy (color));
1973
1974       return TRUE;
1975     }
1976
1977   return FALSE;
1978 }
1979
1980 static gboolean
1981 add_colors_to_hash_from_string (GHashTable  *hash,
1982                                 const gchar *colors)
1983 {
1984   gchar *s, *p, *name;
1985   GdkColor color;
1986   gboolean changed = FALSE;
1987   gchar *copy;
1988
1989   copy = g_strdup (colors);
1990   s = copy;
1991   while (s && *s)
1992     {
1993       name = s;
1994       p = strchr (s, ':');
1995       if (p)
1996         {
1997           *p = '\0';
1998           p++;
1999         }
2000       else
2001         break;
2002
2003       while (*p == ' ')
2004         p++;
2005
2006       s = p;
2007       while (*s)
2008         {
2009           if (*s == '\n' || *s == ';')
2010             {
2011               *s = '\0';
2012               s++;
2013               break;
2014             }
2015           s++;
2016         }
2017
2018       if (gdk_color_parse (p, &color))
2019         changed |= add_color_to_hash (name, &color, hash);
2020     }
2021
2022   g_free (copy);
2023
2024   return changed;
2025 }
2026
2027 static gboolean
2028 update_color_hash (ColorSchemeData   *data,
2029                    const gchar       *str,
2030                    GtkSettingsSource  source)
2031 {
2032   gboolean changed = FALSE;
2033   gint i;
2034
2035   if ((str == NULL || *str == '\0') &&
2036       (data->lastentry[source] == NULL || data->lastentry[source][0] == '\0'))
2037     return FALSE;
2038
2039   if (str && data->lastentry[source] && strcmp (str, data->lastentry[source]) == 0)
2040     return FALSE;
2041
2042   /* For the RC_FILE source we merge the values rather than over-writing
2043    * them, since multiple rc files might define independent sets of colors
2044    */
2045   if ((source != GTK_SETTINGS_SOURCE_RC_FILE) &&
2046       data->tables[source] && g_hash_table_size (data->tables[source]) > 0)
2047     {
2048       g_hash_table_unref (data->tables[source]);
2049       data->tables[source] = NULL;
2050       changed = TRUE; /* We can't rely on the code below since str might be "" */
2051     }
2052
2053   if (data->tables[source] == NULL)
2054     data->tables[source] = g_hash_table_new_full (g_str_hash, g_str_equal,
2055                                                   g_free,
2056                                                   (GDestroyNotify) gdk_color_free);
2057
2058   g_free (data->lastentry[source]);
2059   data->lastentry[source] = g_strdup (str);
2060
2061   changed |= add_colors_to_hash_from_string (data->tables[source], str);
2062
2063   if (!changed)
2064     return FALSE;
2065
2066   /* Rebuild the merged hash table. */
2067   if (data->color_hash)
2068     g_hash_table_unref (data->color_hash);
2069   data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
2070                                             (GDestroyNotify) gdk_color_free);
2071   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
2072     {
2073       if (data->tables[i])
2074         g_hash_table_foreach (data->tables[i], (GHFunc) add_color_to_hash,
2075                               data->color_hash);
2076     }
2077
2078   return TRUE;
2079 }
2080
2081 static void
2082 merge_color_scheme (GtkSettings       *settings,
2083                     const GValue      *value,
2084                     GtkSettingsSource  source)
2085 {
2086   ColorSchemeData *data;
2087   const gchar *colors;
2088
2089   g_object_freeze_notify (G_OBJECT (settings));
2090
2091   colors = g_value_get_string (value);
2092
2093   settings_update_color_scheme (settings);
2094
2095   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2096                                                 "gtk-color-scheme");
2097
2098   if (update_color_hash (data, colors, source))
2099     g_object_notify (G_OBJECT (settings), "color-hash");
2100
2101   g_object_thaw_notify (G_OBJECT (settings));
2102 }
2103
2104 static GHashTable *
2105 get_color_hash (GtkSettings *settings)
2106 {
2107   ColorSchemeData *data;
2108
2109   settings_update_color_scheme (settings);
2110
2111   data = (ColorSchemeData *)g_object_get_data (G_OBJECT (settings),
2112                                                "gtk-color-scheme");
2113
2114   return data->color_hash;
2115 }
2116
2117 static void
2118 append_color_scheme (gpointer key,
2119                      gpointer value,
2120                      gpointer data)
2121 {
2122   gchar *name = (gchar *)key;
2123   GdkColor *color = (GdkColor *)value;
2124   GString *string = (GString *)data;
2125
2126   g_string_append_printf (string, "%s: #%04x%04x%04x\n",
2127                           name, color->red, color->green, color->blue);
2128 }
2129
2130 static gchar *
2131 get_color_scheme (GtkSettings *settings)
2132 {
2133   ColorSchemeData *data;
2134   GString *string;
2135
2136   settings_update_color_scheme (settings);
2137
2138   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
2139                                                 "gtk-color-scheme");
2140
2141   string = g_string_new ("");
2142
2143   g_hash_table_foreach (data->color_hash, append_color_scheme, string);
2144
2145   return g_string_free (string, FALSE);
2146 }
2147
2148
2149 #define __GTK_SETTINGS_C__
2150 #include "gtkaliasdef.c"