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
  38 typedef struct _GtkSettingsValuePrivate GtkSettingsValuePrivate;
  39
  40 typedef enum
  41 {
  42   GTK_SETTINGS_SOURCE_DEFAULT,
  43   GTK_SETTINGS_SOURCE_RC_FILE,
  44   GTK_SETTINGS_SOURCE_XSETTING,
  45   GTK_SETTINGS_SOURCE_APPLICATION
  46 } GtkSettingsSource;
  47
  48 struct _GtkSettingsValuePrivate
  49 {
  50   GtkSettingsValue public;
  51   GtkSettingsSource source;
  52 };
  53
  54 struct _GtkSettingsPropertyValue
  55 {
  56   GValue value;
  57   GtkSettingsSource source;
  58 };
  59
  60 enum {
  61   PROP_0,
  62   PROP_DOUBLE_CLICK_TIME,
  63   PROP_DOUBLE_CLICK_DISTANCE,
  64   PROP_CURSOR_BLINK,
  65   PROP_CURSOR_BLINK_TIME,
  66   PROP_SPLIT_CURSOR,
  67   PROP_THEME_NAME,
  68   PROP_ICON_THEME_NAME,
  69   PROP_KEY_THEME_NAME,
  70   PROP_MENU_BAR_ACCEL,
  71   PROP_DND_DRAG_THRESHOLD,
  72   PROP_FONT_NAME,
  73   PROP_ICON_SIZES,
  74   PROP_MODULES,
  75 #ifdef GDK_WINDOWING_X11
  76   PROP_XFT_ANTIALIAS,
  77   PROP_XFT_HINTING,
  78   PROP_XFT_HINTSTYLE,
  79   PROP_XFT_RGBA,
  80   PROP_XFT_DPI,
  81   PROP_CURSOR_THEME_NAME,
  82   PROP_CURSOR_THEME_SIZE,
  83 #endif
  84   PROP_ALTERNATIVE_BUTTON_ORDER,
  85   PROP_SHOW_INPUT_METHOD_MENU,
  86   PROP_SHOW_UNICODE_MENU,
  87   PROP_TIMEOUT_INITIAL,
  88   PROP_TIMEOUT_REPEAT,
  89   PROP_COLOR_SCHEME,
  90   PROP_ENABLE_ANIMATIONS,
  91   PROP_COLOR_HASH
  92 };
  93
  94
  95 /* --- prototypes --- */
  96 static void     gtk_settings_init                (GtkSettings           *settings);
  97 static void     gtk_settings_class_init          (GtkSettingsClass      *class);
  98 static void     gtk_settings_finalize            (GObject               *object);
  99 static void     gtk_settings_get_property        (GObject               *object,
 100                                                   guint                  property_id,
 101                                                   GValue                *value,
 102                                                   GParamSpec            *pspec);
 103 static void     gtk_settings_set_property        (GObject               *object,
 104                                                   guint                  property_id,
 105                                                   const GValue          *value,
 106                                                   GParamSpec            *pspec);
 107 static void     gtk_settings_notify              (GObject               *object,
 108                                                   GParamSpec            *pspec);
 109 static guint    settings_install_property_parser (GtkSettingsClass      *class,
 110                                                   GParamSpec            *pspec,
 111                                                   GtkRcPropertyParser    parser);
 112 static void    settings_update_double_click      (GtkSettings           *settings);
 113 static void    settings_update_modules           (GtkSettings           *settings);
 114
 115 #ifdef GDK_WINDOWING_X11
 116 static void    settings_update_cursor_theme      (GtkSettings           *settings);
 117 static void    settings_update_resolution        (GtkSettings           *settings);
 118 static void    settings_update_font_options      (GtkSettings           *settings);
 119 #endif
 120 static void    settings_update_color_scheme      (GtkSettings *settings);
 121
 122 static void    merge_color_scheme                (GtkSettings           *settings,
 123                                                   GValue                *value,
 124                                                   GtkSettingsSource      source);
 125 static gchar  *get_color_scheme                  (GtkSettings           *settings);
 126 static GHashTable *get_color_hash                (GtkSettings           *settings);
 127
 128
 129 /* --- variables --- */
 130 static gpointer          parent_class = NULL;
 131 static GQuark            quark_property_parser = 0;
 132 static GSList           *object_list = NULL;
 133 static guint             class_n_properties = 0;
 134
 135
 136 /* --- functions --- */
 137 GType
 138 gtk_settings_get_type (void)
 139 {
 140   static GType settings_type = 0;
 141
 142   if (!settings_type)
 143     {
 144       static const GTypeInfo settings_info =
 145       {
 146         sizeof (GtkSettingsClass),
 147         NULL,           /* base_init */
 148         NULL,           /* base_finalize */
 149         (GClassInitFunc) gtk_settings_class_init,
 150         NULL,           /* class_finalize */
 151         NULL,           /* class_data */
 152         sizeof (GtkSettings),
 153         0,              /* n_preallocs */
 154         (GInstanceInitFunc) gtk_settings_init,
 155       };
 156
 157       settings_type = g_type_register_static (G_TYPE_OBJECT, I_("GtkSettings"),
 158                                               &settings_info, 0);
 159     }
 160
 161   return settings_type;
 162 }
 163
 164 static void
 165 gtk_settings_init (GtkSettings *settings)
 166 {
 167   GParamSpec **pspecs, **p;
 168   guint i = 0;
 169
 170   g_datalist_init (&settings->queued_settings);
 171   object_list = g_slist_prepend (object_list, settings);
 172
 173   /* build up property array for all yet existing properties and queue
 174    * notification for them (at least notification for internal properties
 175    * will instantly be caught)
 176    */
 177   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
 178   for (p = pspecs; *p; p++)
 179     if ((*p)->owner_type == G_OBJECT_TYPE (settings))
 180       i++;
 181   settings->property_values = g_new0 (GtkSettingsPropertyValue, i);
 182   i = 0;
 183   g_object_freeze_notify (G_OBJECT (settings));
 184   for (p = pspecs; *p; p++)
 185     {
 186       GParamSpec *pspec = *p;
 187
 188       if (pspec->owner_type != G_OBJECT_TYPE (settings))
 189         continue;
 190       g_value_init (&settings->property_values[i].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 191       g_param_value_set_default (pspec, &settings->property_values[i].value);
 192       g_object_notify (G_OBJECT (settings), pspec->name);
 193       settings->property_values[i].source = GTK_SETTINGS_SOURCE_DEFAULT;
 194       i++;
 195     }
 196   g_object_thaw_notify (G_OBJECT (settings));
 197   g_free (pspecs);
 198 }
 199
 200 static void
 201 gtk_settings_class_init (GtkSettingsClass *class)
 202 {
 203   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 204   guint result;
 205
 206   parent_class = g_type_class_peek_parent (class);
 207
 208   gobject_class->finalize = gtk_settings_finalize;
 209   gobject_class->get_property = gtk_settings_get_property;
 210   gobject_class->set_property = gtk_settings_set_property;
 211   gobject_class->notify = gtk_settings_notify;
 212
 213   quark_property_parser = g_quark_from_static_string ("gtk-rc-property-parser");
 214
 215   result = settings_install_property_parser (class,
 216                                              g_param_spec_int ("gtk-double-click-time",
 217                                                                P_("Double Click Time"),
 218                                                                P_("Maximum time allowed between two clicks for them to be considered a double click (in milliseconds)"),
 219                                                                0, G_MAXINT, 250,
 220                                                                GTK_PARAM_READWRITE),
 221                                              NULL);
 222   g_assert (result == PROP_DOUBLE_CLICK_TIME);
 223   result = settings_install_property_parser (class,
 224                                              g_param_spec_int ("gtk-double-click-distance",
 225                                                                P_("Double Click Distance"),
 226                                                                P_("Maximum distance allowed between two clicks for them to be considered a double click (in pixels)"),
 227                                                                0, G_MAXINT, 5,
 228                                                                GTK_PARAM_READWRITE),
 229                                              NULL);
 230   g_assert (result == PROP_DOUBLE_CLICK_DISTANCE);
 231   result = settings_install_property_parser (class,
 232                                              g_param_spec_boolean ("gtk-cursor-blink",
 233                                                                    P_("Cursor Blink"),
 234                                                                    P_("Whether the cursor should blink"),
 235                                                                    TRUE,
 236                                                                    GTK_PARAM_READWRITE),
 237                                              NULL);
 238   g_assert (result == PROP_CURSOR_BLINK);
 239   result = settings_install_property_parser (class,
 240                                              g_param_spec_int ("gtk-cursor-blink-time",
 241                                                                P_("Cursor Blink Time"),
 242                                                                P_("Length of the cursor blink cycle, in milleseconds"),
 243                                                                100, G_MAXINT, 1200,
 244                                                                GTK_PARAM_READWRITE),
 245                                              NULL);
 246   g_assert (result == PROP_CURSOR_BLINK_TIME);
 247   result = settings_install_property_parser (class,
 248                                              g_param_spec_boolean ("gtk-split-cursor",
 249                                                                    P_("Split Cursor"),
 250                                                                    P_("Whether two cursors should be displayed for mixed left-to-right and right-to-left text"),
 251                                                                    TRUE,
 252                                                                    GTK_PARAM_READWRITE),
 253                                              NULL);
 254   g_assert (result == PROP_SPLIT_CURSOR);
 255   result = settings_install_property_parser (class,
 256                                              g_param_spec_string ("gtk-theme-name",
 257                                                                    P_("Theme Name"),
 258                                                                    P_("Name of theme RC file to load"),
 259                                                                   "Raleigh",
 260                                                                   GTK_PARAM_READWRITE),
 261                                              NULL);
 262   g_assert (result == PROP_THEME_NAME);
 263   result = settings_install_property_parser (class,
 264                                              g_param_spec_string ("gtk-icon-theme-name",
 265                                                                   P_("Icon Theme Name"),
 266                                                                   P_("Name of icon theme to use"),
 267                                                                   "hicolor",
 268                                                                   GTK_PARAM_READWRITE),
 269                                              NULL);
 270   g_assert (result == PROP_ICON_THEME_NAME);
 271
 272   result = settings_install_property_parser (class,
 273                                              g_param_spec_string ("gtk-key-theme-name",
 274                                                                   P_("Key Theme Name"),
 275                                                                   P_("Name of key theme RC file to load"),
 276                                                                   NULL,
 277                                                                   GTK_PARAM_READWRITE),
 278                                              NULL);
 279   g_assert (result == PROP_KEY_THEME_NAME);
 280
 281   result = settings_install_property_parser (class,
 282                                              g_param_spec_string ("gtk-menu-bar-accel",
 283                                                                   P_("Menu bar accelerator"),
 284                                                                   P_("Keybinding to activate the menu bar"),
 285                                                                   "F10",
 286                                                                   GTK_PARAM_READWRITE),
 287                                              NULL);
 288   g_assert (result == PROP_MENU_BAR_ACCEL);
 289
 290   result = settings_install_property_parser (class,
 291                                              g_param_spec_int ("gtk-dnd-drag-threshold",
 292                                                                P_("Drag threshold"),
 293                                                                P_("Number of pixels the cursor can move before dragging"),
 294                                                                1, G_MAXINT, 8,
 295                                                                GTK_PARAM_READWRITE),
 296                                              NULL);
 297   g_assert (result == PROP_DND_DRAG_THRESHOLD);
 298
 299   result = settings_install_property_parser (class,
 300                                              g_param_spec_string ("gtk-font-name",
 301                                                                    P_("Font Name"),
 302                                                                    P_("Name of default font to use"),
 303                                                                   "Sans 10",
 304                                                                   GTK_PARAM_READWRITE),
 305                                              NULL);
 306   g_assert (result == PROP_FONT_NAME);
 307
 308   result = settings_install_property_parser (class,
 309                                              g_param_spec_string ("gtk-icon-sizes",
 310                                                                    P_("Icon Sizes"),
 311                                                                    P_("List of icon sizes (gtk-menu=16,16:gtk-button=20,20..."),
 312                                                                   NULL,
 313                                                                   GTK_PARAM_READWRITE),
 314                                              NULL);
 315   g_assert (result == PROP_ICON_SIZES);
 316
 317   result = settings_install_property_parser (class,
 318                                              g_param_spec_string ("gtk-modules",
 319                                                                   P_("GTK Modules"),
 320                                                                   P_("List of currently active GTK modules"),
 321                                                                   NULL,
 322                                                                   GTK_PARAM_READWRITE),
 323                                              NULL);
 324   g_assert (result == PROP_MODULES);
 325
 326 #ifdef GDK_WINDOWING_X11
 327   result = settings_install_property_parser (class,
 328                                              g_param_spec_int ("gtk-xft-antialias",
 329                                                                P_("Xft Antialias"),
 330                                                                P_("Whether to antialias Xft fonts; 0=no, 1=yes, -1=default"),
 331                                                                -1, 1, -1,
 332                                                                GTK_PARAM_READWRITE),
 333                                              NULL);
 334
 335   g_assert (result == PROP_XFT_ANTIALIAS);
 336
 337   result = settings_install_property_parser (class,
 338                                              g_param_spec_int ("gtk-xft-hinting",
 339                                                                P_("Xft Hinting"),
 340                                                                P_("Whether to hint Xft fonts; 0=no, 1=yes, -1=default"),
 341                                                                -1, 1, -1,
 342                                                                GTK_PARAM_READWRITE),
 343                                              NULL);
 344
 345   g_assert (result == PROP_XFT_HINTING);
 346
 347   result = settings_install_property_parser (class,
 348                                              g_param_spec_string ("gtk-xft-hintstyle",
 349                                                                   P_("Xft Hint Style"),
 350                                                                   P_("What degree of hinting to use; hintnone, hintslight, hintmedium, or hintfull"),
 351                                                                   NULL,
 352                                                                   GTK_PARAM_READWRITE),
 353                                               NULL);
 354
 355   g_assert (result == PROP_XFT_HINTSTYLE);
 356
 357   result = settings_install_property_parser (class,
 358                                              g_param_spec_string ("gtk-xft-rgba",
 359                                                                   P_("Xft RGBA"),
 360                                                                   P_("Type of subpixel antialiasing; none, rgb, bgr, vrgb, vbgr"),
 361                                                                   NULL,
 362                                                                   GTK_PARAM_READWRITE),
 363                                              NULL);
 364
 365   g_assert (result == PROP_XFT_RGBA);
 366
 367   result = settings_install_property_parser (class,
 368                                              g_param_spec_int ("gtk-xft-dpi",
 369                                                                P_("Xft DPI"),
 370                                                                P_("Resolution for Xft, in 1024 * dots/inch. -1 to use default value"),
 371                                                                -1, 1024*1024, -1,
 372                                                                GTK_PARAM_READWRITE),
 373                                              NULL);
 374
 375   g_assert (result == PROP_XFT_DPI);
 376
 377   result = settings_install_property_parser (class,
 378                                              g_param_spec_string ("gtk-cursor-theme-name",
 379                                                                   P_("Cursor theme name"),
 380                                                                   P_("Name of the cursor theme to use"),
 381                                                                   NULL,
 382                                                                   GTK_PARAM_READWRITE),
 383                                              NULL);
 384   g_assert (result == PROP_CURSOR_THEME_NAME);
 385
 386   result = settings_install_property_parser (class,
 387                                              g_param_spec_int ("gtk-cursor-theme-size",
 388                                                                P_("Cursor theme size"),
 389                                                                P_("Size to use for cursors"),
 390                                                                0, 128, 24,
 391                                                                GTK_PARAM_READWRITE),
 392                                              NULL);
 393
 394   g_assert (result == PROP_CURSOR_THEME_SIZE);
 395
 396 #endif  /* GDK_WINDOWING_X11 */
 397   result = settings_install_property_parser (class,
 398                                              g_param_spec_boolean ("gtk-alternative-button-order",
 399                                                                    P_("Alternative button order"),
 400                                                                    P_("Whether buttons in dialogs should use the alternative button order"),
 401                                                                    FALSE,
 402                                                                    GTK_PARAM_READWRITE),
 403                                              NULL);
 404   g_assert (result == PROP_ALTERNATIVE_BUTTON_ORDER);
 405
 406   result = settings_install_property_parser (class,
 407                                              g_param_spec_boolean ("gtk-show-input-method-menu",
 408                                                                    P_("Show the 'Input Methods' menu"),
 409                                                                    P_("Whether the context menus of entries and text views should offer to change the input method"),
 410                                                                    TRUE,
 411                                                                    GTK_PARAM_READWRITE),
 412                                              NULL);
 413   g_assert (result == PROP_SHOW_INPUT_METHOD_MENU);
 414
 415   result = settings_install_property_parser (class,
 416                                              g_param_spec_boolean ("gtk-show-unicode-menu",
 417                                                                    P_("Show the 'Insert Unicode Control Character' menu"),
 418                                                                    P_("Whether the context menus of entries and text views should offer to insert control characters"),
 419                                                                    TRUE,
 420                                                                    GTK_PARAM_READWRITE),
 421                                              NULL);
 422   g_assert (result == PROP_SHOW_UNICODE_MENU);
 423
 424   result = settings_install_property_parser (class,
 425                                              g_param_spec_int ("gtk-timeout-initial",
 426                                                                P_("Start timeout"),
 427                                                                P_("Starting value for timeouts, when button is pressed"),
 428                                                                0, G_MAXINT, DEFAULT_TIMEOUT_INITIAL,
 429                                                                GTK_PARAM_READWRITE),
 430                                              NULL);
 431
 432   g_assert (result == PROP_TIMEOUT_INITIAL);
 433
 434   result = settings_install_property_parser (class,
 435                                              g_param_spec_int ("gtk-timeout-repeat",
 436                                                                P_("Repeat timeout"),
 437                                                                P_("Repeat value for timeouts, when button is pressed"),
 438                                                                0, G_MAXINT, DEFAULT_TIMEOUT_REPEAT,
 439                                                                GTK_PARAM_READWRITE),
 440                                              NULL);
 441
 442   g_assert (result == PROP_TIMEOUT_REPEAT);
 443
 444   /**
 445    * GtkSettings:gtk-color-scheme:
 446    *
 447    * A palette of named colors for use in themes. The format of the string is
 448    * <programlisting>
 449    * name1: color1
 450    * name2: color2
 451    * ...
 452    * </programlisting>
 453    * Color names must be acceptable as identifiers in the
 454    * <link linkend="gtk-Resource-Files">gtkrc</link> syntax, and
 455    * color specifications must be in the format accepted by
 456    * gdk_color_parse().
 457    *
 458    * Note that due to the way the color tables from different sources are
 459    * merged, color specifications will be converted to hexadecimal form
 460    * when getting this property.
 461    *
 462    * Since: 2.10
 463    */
 464   result = settings_install_property_parser (class,
 465                                              g_param_spec_string ("gtk-color-scheme",
 466                                                                   P_("Color scheme"),
 467                                                                   P_("A palette of named colors for use in themes"),
 468                                                                   "foreground:black\nbackground:gray",
 469                                                                   GTK_PARAM_READWRITE),
 470                                              NULL);
 471
 472   g_assert (result == PROP_COLOR_SCHEME);
 473
 474   result = settings_install_property_parser (class,
 475                                              g_param_spec_boolean ("gtk-enable-animations",
 476                                                                    P_("Enable Animations"),
 477                                                                    P_("Whether to enable toolkit-wide animations."),
 478                                                                    TRUE,
 479                                                                    GTK_PARAM_READWRITE),
 480                                              NULL);
 481
 482   g_assert (result == PROP_ENABLE_ANIMATIONS);
 483
 484   /**
 485    * GtkSettings:color-hash:
 486    *
 487    * Holds a hash table representation of the gtk-color-scheme setting,
 488    * mapping color names to #GdkColor<!-- -->s.
 489    *
 490    * Since: 2.10
 491    */
 492   g_object_class_install_property (gobject_class,
 493                                    PROP_COLOR_HASH,
 494                                    g_param_spec_boxed ("color-hash",
 495                                                        P_("Color Hash"),
 496                                                        P_("A hash table resentation of the color scheme."),
 497                                                        G_TYPE_HASH_TABLE,
 498                                                        GTK_PARAM_READABLE));
 499 }
 500
 501 static void
 502 gtk_settings_finalize (GObject *object)
 503 {
 504   GtkSettings *settings = GTK_SETTINGS (object);
 505   guint i;
 506
 507   object_list = g_slist_remove (object_list, settings);
 508
 509   for (i = 0; i < class_n_properties; i++)
 510     g_value_unset (&settings->property_values[i].value);
 511   g_free (settings->property_values);
 512
 513   g_datalist_clear (&settings->queued_settings);
 514
 515   G_OBJECT_CLASS (parent_class)->finalize (object);
 516 }
 517
 518 /**
 519  * gtk_settings_get_for_screen:
 520  * @screen : a #GdkScreen.
 521  *
 522  * Gets the #GtkSettings object for @screen, creating it if necessary.
 523  *
 524  * Return value: a #GtkSettings object.
 525  *
 526  * Since: 2.2
 527  */
 528 GtkSettings*
 529 gtk_settings_get_for_screen (GdkScreen *screen)
 530 {
 531   GtkSettings *settings;
 532
 533   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 534
 535   settings = g_object_get_data (G_OBJECT (screen), "gtk-settings");
 536   if (!settings)
 537     {
 538       settings = g_object_new (GTK_TYPE_SETTINGS, NULL);
 539       settings->screen = screen;
 540       g_object_set_data (G_OBJECT (screen), I_("gtk-settings"), settings);
 541
 542       gtk_rc_reparse_all_for_settings (settings, TRUE);
 543       settings_update_double_click (settings);
 544 #ifdef GDK_WINDOWING_X11
 545       settings_update_cursor_theme (settings);
 546       settings_update_resolution (settings);
 547       settings_update_font_options (settings);
 548 #endif
 549       settings_update_color_scheme (settings);
 550     }
 551
 552   return settings;
 553 }
 554
 555 /**
 556  * gtk_settings_get_default:
 557  *
 558  * Gets the #GtkSettings object for the default GDK screen, creating
 559  * it if necessary. See gtk_settings_get_for_screen().
 560  *
 561  * Return value: a #GtkSettings object. If there is no default
 562  *  screen, then returns %NULL.
 563  **/
 564 GtkSettings*
 565 gtk_settings_get_default (void)
 566 {
 567   GdkScreen *screen = gdk_screen_get_default ();
 568
 569   if (screen)
 570     return gtk_settings_get_for_screen (screen);
 571   else
 572     return NULL;
 573 }
 574
 575 static void
 576 gtk_settings_set_property (GObject      *object,
 577                            guint         property_id,
 578                            const GValue *value,
 579                            GParamSpec   *pspec)
 580 {
 581   GtkSettings *settings = GTK_SETTINGS (object);
 582
 583   g_value_copy (value, &settings->property_values[property_id - 1].value);
 584   settings->property_values[property_id - 1].source = GTK_SETTINGS_SOURCE_APPLICATION;
 585 }
 586
 587 static void
 588 gtk_settings_get_property (GObject     *object,
 589                            guint        property_id,
 590                            GValue      *value,
 591                            GParamSpec  *pspec)
 592 {
 593   GtkSettings *settings = GTK_SETTINGS (object);
 594   GType value_type = G_VALUE_TYPE (value);
 595   GType fundamental_type = G_TYPE_FUNDAMENTAL (value_type);
 596
 597   if (property_id == PROP_COLOR_HASH)
 598     {
 599       g_value_set_boxed (value, get_color_hash (settings));
 600       return;
 601     }
 602
 603   /* For enums and strings, we need to get the value as a string,
 604    * not as an int, since we support using names/nicks as the setting
 605    * value.
 606    */
 607   if ((g_value_type_transformable (G_TYPE_INT, value_type) &&
 608        !(fundamental_type == G_TYPE_ENUM || fundamental_type == G_TYPE_FLAGS)) ||
 609       g_value_type_transformable (G_TYPE_STRING, G_VALUE_TYPE (value)) ||
 610       g_value_type_transformable (GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
 611     {
 612       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 613           !gdk_screen_get_setting (settings->screen, pspec->name, value))
 614         g_value_copy (&settings->property_values[property_id - 1].value, value);
 615       else
 616         {
 617           if (pspec->param_id == PROP_COLOR_SCHEME)
 618             {
 619               merge_color_scheme (settings, value, GTK_SETTINGS_SOURCE_XSETTING);
 620               g_value_set_string (value, get_color_scheme (settings));
 621             }
 622
 623           g_param_value_validate (pspec, value);
 624         }
 625     }
 626   else
 627     {
 628       GValue val = { 0, };
 629
 630       /* Try to get xsetting as a string and parse it. */
 631
 632       g_value_init (&val, G_TYPE_STRING);
 633
 634       if (settings->property_values[property_id - 1].source == GTK_SETTINGS_SOURCE_APPLICATION ||
 635           !gdk_screen_get_setting (settings->screen, pspec->name, &val))
 636         {
 637           g_value_copy (&settings->property_values[property_id - 1].value, value);
 638         }
 639       else
 640         {
 641           GValue tmp_value = { 0, };
 642           GValue gstring_value = { 0, };
 643           GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
 644
 645           g_value_init (&gstring_value, G_TYPE_GSTRING);
 646           g_value_take_boxed (&gstring_value,
 647                               g_string_new (g_value_get_string (&val)));
 648
 649           g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 650
 651           if (parser && _gtk_settings_parse_convert (parser, &gstring_value,
 652                                                      pspec, &tmp_value))
 653             {
 654               g_value_copy (&tmp_value, value);
 655               g_param_value_validate (pspec, value);
 656             }
 657           else
 658             {
 659               g_value_copy (&settings->property_values[property_id - 1].value, value);
 660             }
 661
 662           g_value_unset (&gstring_value);
 663           g_value_unset (&tmp_value);
 664         }
 665
 666       g_value_unset (&val);
 667     }
 668 }
 669
 670 static void
 671 gtk_settings_notify (GObject    *object,
 672                      GParamSpec *pspec)
 673 {
 674   GtkSettings *settings = GTK_SETTINGS (object);
 675   guint property_id = pspec->param_id;
 676
 677   if (settings->screen == NULL) /* initialization */
 678     return;
 679
 680   switch (property_id)
 681     {
 682     case PROP_MODULES:
 683       settings_update_modules (settings);
 684       break;
 685     case PROP_DOUBLE_CLICK_TIME:
 686     case PROP_DOUBLE_CLICK_DISTANCE:
 687       settings_update_double_click (settings);
 688       break;
 689     case PROP_COLOR_SCHEME:
 690       settings_update_color_scheme (settings);
 691       break;
 692 #ifdef GDK_WINDOWING_X11
 693     case PROP_XFT_DPI:
 694       settings_update_resolution (settings);
 695       /* This is a hack because with gtk_rc_reset_styles() doesn't get
 696        * widgets with gtk_widget_style_set(), and also causes more
 697        * recomputation than necessary.
 698        */
 699       gtk_rc_reset_styles (GTK_SETTINGS (object));
 700       break;
 701     case PROP_XFT_ANTIALIAS:
 702     case PROP_XFT_HINTING:
 703     case PROP_XFT_HINTSTYLE:
 704     case PROP_XFT_RGBA:
 705       settings_update_font_options (settings);
 706       gtk_rc_reset_styles (GTK_SETTINGS (object));
 707       break;
 708     case PROP_CURSOR_THEME_NAME:
 709     case PROP_CURSOR_THEME_SIZE:
 710       settings_update_cursor_theme (settings);
 711       break;
 712 #endif /* GDK_WINDOWING_X11 */
 713     }
 714 }
 715
 716 gboolean
 717 _gtk_settings_parse_convert (GtkRcPropertyParser parser,
 718                              const GValue       *src_value,
 719                              GParamSpec         *pspec,
 720                              GValue             *dest_value)
 721 {
 722   gboolean success = FALSE;
 723
 724   g_return_val_if_fail (G_VALUE_HOLDS (dest_value, G_PARAM_SPEC_VALUE_TYPE (pspec)), FALSE);
 725
 726   if (parser)
 727     {
 728       GString *gstring;
 729       gboolean free_gstring = TRUE;
 730
 731       if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
 732         {
 733           gstring = g_value_get_boxed (src_value);
 734           free_gstring = FALSE;
 735         }
 736       else if (G_VALUE_HOLDS_LONG (src_value))
 737         {
 738           gstring = g_string_new (NULL);
 739           g_string_append_printf (gstring, "%ld", g_value_get_long (src_value));
 740         }
 741       else if (G_VALUE_HOLDS_DOUBLE (src_value))
 742         {
 743           gstring = g_string_new (NULL);
 744           g_string_append_printf (gstring, "%f", g_value_get_double (src_value));
 745         }
 746       else if (G_VALUE_HOLDS_STRING (src_value))
 747         {
 748           gchar *tstr = g_strescape (g_value_get_string (src_value), NULL);
 749
 750           gstring = g_string_new ("\"");
 751           g_string_append (gstring, tstr);
 752           g_string_append_c (gstring, '\"');
 753           g_free (tstr);
 754         }
 755       else
 756         {
 757           g_return_val_if_fail (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING), FALSE);
 758           gstring = NULL; /* silence compiler */
 759         }
 760
 761       success = (parser (pspec, gstring, dest_value) &&
 762                  !g_param_value_validate (pspec, dest_value));
 763
 764       if (free_gstring)
 765         g_string_free (gstring, TRUE);
 766     }
 767   else if (G_VALUE_HOLDS (src_value, G_TYPE_GSTRING))
 768     {
 769       if (G_VALUE_HOLDS (dest_value, G_TYPE_STRING))
 770         {
 771           GString *gstring = g_value_get_boxed (src_value);
 772
 773           g_value_set_string (dest_value, gstring ? gstring->str : NULL);
 774           success = !g_param_value_validate (pspec, dest_value);
 775         }
 776     }
 777   else if (g_value_type_transformable (G_VALUE_TYPE (src_value), G_VALUE_TYPE (dest_value)))
 778     success = g_param_value_convert (pspec, src_value, dest_value, TRUE);
 779
 780   return success;
 781 }
 782
 783 static void
 784 apply_queued_setting (GtkSettings             *data,
 785                       GParamSpec              *pspec,
 786                       GtkSettingsValuePrivate *qvalue)
 787 {
 788   GValue tmp_value = { 0, };
 789   GtkRcPropertyParser parser = (GtkRcPropertyParser) g_param_spec_get_qdata (pspec, quark_property_parser);
 790
 791   g_value_init (&tmp_value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 792   if (_gtk_settings_parse_convert (parser, &qvalue->public.value,
 793                                    pspec, &tmp_value))
 794     {
 795       if (pspec->param_id == PROP_COLOR_SCHEME)
 796         {
 797           merge_color_scheme (data, &tmp_value, qvalue->source);
 798           g_object_set_property (G_OBJECT (data), pspec->name, &tmp_value);
 799           data->property_values[pspec->param_id - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
 800         }
 801
 802       else if (data->property_values[pspec->param_id - 1].source <= qvalue->source)
 803         {
 804           g_object_set_property (G_OBJECT (data), pspec->name, &tmp_value);
 805           data->property_values[pspec->param_id - 1].source = qvalue->source;
 806         }
 807     }
 808   else
 809     {
 810       gchar *debug = g_strdup_value_contents (&qvalue->public.value);
 811
 812       g_message ("%s: failed to retrieve property `%s' of type `%s' from rc file value \"%s\" of type `%s'",
 813                  qvalue->public.origin,
 814                  pspec->name,
 815                  g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
 816                  debug,
 817                  G_VALUE_TYPE_NAME (&tmp_value));
 818       g_free (debug);
 819     }
 820   g_value_unset (&tmp_value);
 821 }
 822
 823 static guint
 824 settings_install_property_parser (GtkSettingsClass   *class,
 825                                   GParamSpec         *pspec,
 826                                   GtkRcPropertyParser parser)
 827 {
 828   GSList *node, *next;
 829
 830   switch (G_TYPE_FUNDAMENTAL (G_PARAM_SPEC_VALUE_TYPE (pspec)))
 831     {
 832     case G_TYPE_BOOLEAN:
 833     case G_TYPE_UCHAR:
 834     case G_TYPE_CHAR:
 835     case G_TYPE_UINT:
 836     case G_TYPE_INT:
 837     case G_TYPE_ULONG:
 838     case G_TYPE_LONG:
 839     case G_TYPE_FLOAT:
 840     case G_TYPE_DOUBLE:
 841     case G_TYPE_STRING:
 842       break;
 843     default:
 844       if (!parser)
 845         {
 846           g_warning (G_STRLOC ": parser needs to be specified for property \"%s\" of type `%s'",
 847                      pspec->name, g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)));
 848           return 0;
 849         }
 850     }
 851   if (g_object_class_find_property (G_OBJECT_CLASS (class), pspec->name))
 852     {
 853       g_warning (G_STRLOC ": an rc-data property \"%s\" already exists",
 854                  pspec->name);
 855       return 0;
 856     }
 857
 858   for (node = object_list; node; node = node->next)
 859     g_object_freeze_notify (node->data);
 860
 861   g_object_class_install_property (G_OBJECT_CLASS (class), ++class_n_properties, pspec);
 862   g_param_spec_set_qdata (pspec, quark_property_parser, (gpointer) parser);
 863
 864   for (node = object_list; node; node = node->next)
 865     {
 866       GtkSettings *settings = node->data;
 867       GtkSettingsValuePrivate *qvalue;
 868
 869       settings->property_values = g_renew (GtkSettingsPropertyValue, settings->property_values, class_n_properties);
 870       settings->property_values[class_n_properties - 1].value.g_type = 0;
 871       g_value_init (&settings->property_values[class_n_properties - 1].value, G_PARAM_SPEC_VALUE_TYPE (pspec));
 872       g_param_value_set_default (pspec, &settings->property_values[class_n_properties - 1].value);
 873       settings->property_values[class_n_properties - 1].source = GTK_SETTINGS_SOURCE_DEFAULT;
 874       g_object_notify (G_OBJECT (settings), pspec->name);
 875
 876       qvalue = g_datalist_get_data (&settings->queued_settings, pspec->name);
 877       if (qvalue)
 878         apply_queued_setting (settings, pspec, qvalue);
 879     }
 880
 881   for (node = object_list; node; node = next)
 882     {
 883       next = node->next;
 884       g_object_thaw_notify (node->data);
 885     }
 886
 887   return class_n_properties;
 888 }
 889
 890 GtkRcPropertyParser
 891 _gtk_rc_property_parser_from_type (GType type)
 892 {
 893   if (type == GDK_TYPE_COLOR)
 894     return gtk_rc_property_parse_color;
 895   else if (type == GTK_TYPE_REQUISITION)
 896     return gtk_rc_property_parse_requisition;
 897   else if (type == GTK_TYPE_BORDER)
 898     return gtk_rc_property_parse_border;
 899   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM && G_TYPE_IS_DERIVED (type))
 900     return gtk_rc_property_parse_enum;
 901   else if (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS && G_TYPE_IS_DERIVED (type))
 902     return gtk_rc_property_parse_flags;
 903   else
 904     return NULL;
 905 }
 906
 907 void
 908 gtk_settings_install_property (GParamSpec *pspec)
 909 {
 910   GtkRcPropertyParser parser;
 911
 912   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
 913
 914   parser = _gtk_rc_property_parser_from_type (G_PARAM_SPEC_VALUE_TYPE (pspec));
 915
 916   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
 917 }
 918
 919 void
 920 gtk_settings_install_property_parser (GParamSpec          *pspec,
 921                                       GtkRcPropertyParser  parser)
 922 {
 923   g_return_if_fail (G_IS_PARAM_SPEC (pspec));
 924   g_return_if_fail (parser != NULL);
 925
 926   settings_install_property_parser (gtk_type_class (GTK_TYPE_SETTINGS), pspec, parser);
 927 }
 928
 929 static void
 930 free_value (gpointer data)
 931 {
 932   GtkSettingsValuePrivate *qvalue = data;
 933
 934   g_value_unset (&qvalue->public.value);
 935   g_free (qvalue->public.origin);
 936   g_free (qvalue);
 937 }
 938
 939 static void
 940 gtk_settings_set_property_value_internal (GtkSettings            *settings,
 941                                           const gchar            *prop_name,
 942                                           const GtkSettingsValue *new_value,
 943                                           GtkSettingsSource       source)
 944 {
 945   GtkSettingsValuePrivate *qvalue;
 946   GParamSpec *pspec;
 947   gchar *name;
 948   GQuark name_quark;
 949
 950   if (!G_VALUE_HOLDS_LONG (&new_value->value) &&
 951       !G_VALUE_HOLDS_DOUBLE (&new_value->value) &&
 952       !G_VALUE_HOLDS_STRING (&new_value->value) &&
 953       !G_VALUE_HOLDS (&new_value->value, G_TYPE_GSTRING))
 954     {
 955       g_warning (G_STRLOC ": value type invalid");
 956       return;
 957     }
 958
 959   name = g_strdup (prop_name);
 960   g_strcanon (name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
 961   name_quark = g_quark_from_string (name);
 962   g_free (name);
 963
 964   qvalue = g_datalist_id_get_data (&settings->queued_settings, name_quark);
 965   if (!qvalue)
 966     {
 967       qvalue = g_new0 (GtkSettingsValuePrivate, 1);
 968       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
 969     }
 970   else
 971     {
 972       g_free (qvalue->public.origin);
 973       g_value_unset (&qvalue->public.value);
 974     }
 975   qvalue->public.origin = g_strdup (new_value->origin);
 976   g_value_init (&qvalue->public.value, G_VALUE_TYPE (&new_value->value));
 977   g_value_copy (&new_value->value, &qvalue->public.value);
 978   qvalue->source = source;
 979   pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (settings), g_quark_to_string (name_quark));
 980   if (pspec)
 981     apply_queued_setting (settings, pspec, qvalue);
 982 }
 983
 984 void
 985 gtk_settings_set_property_value (GtkSettings            *settings,
 986                                  const gchar            *prop_name,
 987                                  const GtkSettingsValue *new_value)
 988 {
 989   g_return_if_fail (GTK_SETTINGS (settings));
 990   g_return_if_fail (prop_name != NULL);
 991   g_return_if_fail (new_value != NULL);
 992   g_return_if_fail (new_value->origin != NULL);
 993
 994   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
 995                                             GTK_SETTINGS_SOURCE_APPLICATION);
 996 }
 997
 998 void
 999 _gtk_settings_set_property_value_from_rc (GtkSettings            *settings,
1000                                           const gchar            *prop_name,
1001                                           const GtkSettingsValue *new_value)
1002 {
1003   g_return_if_fail (GTK_SETTINGS (settings));
1004   g_return_if_fail (prop_name != NULL);
1005   g_return_if_fail (new_value != NULL);
1006   g_return_if_fail (new_value->origin != NULL);
1007
1008   gtk_settings_set_property_value_internal (settings, prop_name, new_value,
1009                                             GTK_SETTINGS_SOURCE_RC_FILE);
1010 }
1011
1012 void
1013 gtk_settings_set_string_property (GtkSettings *settings,
1014                                   const gchar *name,
1015                                   const gchar *v_string,
1016                                   const gchar *origin)
1017 {
1018   GtkSettingsValue svalue = { NULL, { 0, }, };
1019
1020   g_return_if_fail (GTK_SETTINGS (settings));
1021   g_return_if_fail (name != NULL);
1022   g_return_if_fail (v_string != NULL);
1023   g_return_if_fail (origin != NULL);
1024
1025   svalue.origin = (gchar*) origin;
1026   g_value_init (&svalue.value, G_TYPE_STRING);
1027   g_value_set_static_string (&svalue.value, v_string);
1028   gtk_settings_set_property_value (settings, name, &svalue);
1029   g_value_unset (&svalue.value);
1030 }
1031
1032 void
1033 gtk_settings_set_long_property (GtkSettings *settings,
1034                                 const gchar *name,
1035                                 glong        v_long,
1036                                 const gchar *origin)
1037 {
1038   GtkSettingsValue svalue = { NULL, { 0, }, };
1039
1040   g_return_if_fail (GTK_SETTINGS (settings));
1041   g_return_if_fail (name != NULL);
1042   g_return_if_fail (origin != NULL);
1043
1044   svalue.origin = (gchar*) origin;
1045   g_value_init (&svalue.value, G_TYPE_LONG);
1046   g_value_set_long (&svalue.value, v_long);
1047   gtk_settings_set_property_value (settings, name, &svalue);
1048   g_value_unset (&svalue.value);
1049 }
1050
1051 void
1052 gtk_settings_set_double_property (GtkSettings *settings,
1053                                   const gchar *name,
1054                                   gdouble      v_double,
1055                                   const gchar *origin)
1056 {
1057   GtkSettingsValue svalue = { NULL, { 0, }, };
1058
1059   g_return_if_fail (GTK_SETTINGS (settings));
1060   g_return_if_fail (name != NULL);
1061   g_return_if_fail (origin != NULL);
1062
1063   svalue.origin = (gchar*) origin;
1064   g_value_init (&svalue.value, G_TYPE_DOUBLE);
1065   g_value_set_double (&svalue.value, v_double);
1066   gtk_settings_set_property_value (settings, name, &svalue);
1067   g_value_unset (&svalue.value);
1068 }
1069
1070 /**
1071  * gtk_rc_property_parse_color:
1072  * @pspec: a #GParamSpec
1073  * @gstring: the #GString to be parsed
1074  * @property_value: a #GValue which must hold #GdkColor values.
1075  *
1076  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1077  * or gtk_widget_class_install_style_property_parser() which parses a
1078  * color given either by its name or in the form
1079  * <literal>{ red, green, blue }</literal> where %red, %green and
1080  * %blue are integers between 0 and 65535 or floating-point numbers
1081  * between 0 and 1.
1082  *
1083  * Return value: %TRUE if @gstring could be parsed and @property_value
1084  * has been set to the resulting #GdkColor.
1085  **/
1086 gboolean
1087 gtk_rc_property_parse_color (const GParamSpec *pspec,
1088                              const GString    *gstring,
1089                              GValue           *property_value)
1090 {
1091   GdkColor color = { 0, 0, 0, 0, };
1092   GScanner *scanner;
1093   gboolean success;
1094
1095   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1096   g_return_val_if_fail (G_VALUE_HOLDS (property_value, GDK_TYPE_COLOR), FALSE);
1097
1098   scanner = gtk_rc_scanner_new ();
1099   g_scanner_input_text (scanner, gstring->str, gstring->len);
1100   if (gtk_rc_parse_color (scanner, &color) == G_TOKEN_NONE &&
1101       g_scanner_get_next_token (scanner) == G_TOKEN_EOF)
1102     {
1103       g_value_set_boxed (property_value, &color);
1104       success = TRUE;
1105     }
1106   else
1107     success = FALSE;
1108   g_scanner_destroy (scanner);
1109
1110   return success;
1111 }
1112
1113 /**
1114  * gtk_rc_property_parse_enum:
1115  * @pspec: a #GParamSpec
1116  * @gstring: the #GString to be parsed
1117  * @property_value: a #GValue which must hold enum values.
1118  *
1119  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1120  * or gtk_widget_class_install_style_property_parser() which parses a single
1121  * enumeration value.
1122  *
1123  * The enumeration value can be specified by its name, its nickname or
1124  * its numeric value. For consistency with flags parsing, the value
1125  * may be surrounded by parentheses.
1126  *
1127  * Return value: %TRUE if @gstring could be parsed and @property_value
1128  * has been set to the resulting #GEnumValue.
1129  **/
1130 gboolean
1131 gtk_rc_property_parse_enum (const GParamSpec *pspec,
1132                             const GString    *gstring,
1133                             GValue           *property_value)
1134 {
1135   gboolean need_closing_brace = FALSE, success = FALSE;
1136   GScanner *scanner;
1137   GEnumValue *enum_value = NULL;
1138
1139   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1140   g_return_val_if_fail (G_VALUE_HOLDS_ENUM (property_value), FALSE);
1141
1142   scanner = gtk_rc_scanner_new ();
1143   g_scanner_input_text (scanner, gstring->str, gstring->len);
1144
1145   /* we just want to parse _one_ value, but for consistency with flags parsing
1146    * we support optional parenthesis
1147    */
1148   g_scanner_get_next_token (scanner);
1149   if (scanner->token == '(')
1150     {
1151       need_closing_brace = TRUE;
1152       g_scanner_get_next_token (scanner);
1153     }
1154   if (scanner->token == G_TOKEN_IDENTIFIER)
1155     {
1156       GEnumClass *class = G_PARAM_SPEC_ENUM (pspec)->enum_class;
1157
1158       enum_value = g_enum_get_value_by_name (class, scanner->value.v_identifier);
1159       if (!enum_value)
1160         enum_value = g_enum_get_value_by_nick (class, scanner->value.v_identifier);
1161       if (enum_value)
1162         {
1163           g_value_set_enum (property_value, enum_value->value);
1164           success = TRUE;
1165         }
1166     }
1167   else if (scanner->token == G_TOKEN_INT)
1168     {
1169       g_value_set_enum (property_value, scanner->value.v_int);
1170       success = TRUE;
1171     }
1172   if (need_closing_brace && g_scanner_get_next_token (scanner) != ')')
1173     success = FALSE;
1174   if (g_scanner_get_next_token (scanner) != G_TOKEN_EOF)
1175     success = FALSE;
1176
1177   g_scanner_destroy (scanner);
1178
1179   return success;
1180 }
1181
1182 static guint
1183 parse_flags_value (GScanner    *scanner,
1184                    GFlagsClass *class,
1185                    guint       *number)
1186 {
1187   g_scanner_get_next_token (scanner);
1188   if (scanner->token == G_TOKEN_IDENTIFIER)
1189     {
1190       GFlagsValue *flags_value;
1191
1192       flags_value = g_flags_get_value_by_name (class, scanner->value.v_identifier);
1193       if (!flags_value)
1194         flags_value = g_flags_get_value_by_nick (class, scanner->value.v_identifier);
1195       if (flags_value)
1196         {
1197           *number |= flags_value->value;
1198           return G_TOKEN_NONE;
1199         }
1200     }
1201   else if (scanner->token == G_TOKEN_INT)
1202     {
1203       *number |= scanner->value.v_int;
1204       return G_TOKEN_NONE;
1205     }
1206   return G_TOKEN_IDENTIFIER;
1207 }
1208
1209 /**
1210  * gtk_rc_property_parse_flags:
1211  * @pspec: a #GParamSpec
1212  * @gstring: the #GString to be parsed
1213  * @property_value: a #GValue which must hold flags values.
1214  *
1215  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1216  * or gtk_widget_class_install_style_property_parser() which parses flags.
1217  *
1218  * Flags can be specified by their name, their nickname or
1219  * numerically. Multiple flags can be specified in the form
1220  * <literal>"( flag1 | flag2 | ... )"</literal>.
1221  *
1222  * Return value: %TRUE if @gstring could be parsed and @property_value
1223  * has been set to the resulting flags value.
1224  **/
1225 gboolean
1226 gtk_rc_property_parse_flags (const GParamSpec *pspec,
1227                              const GString    *gstring,
1228                              GValue           *property_value)
1229 {
1230   GFlagsClass *class;
1231    gboolean success = FALSE;
1232   GScanner *scanner;
1233
1234   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1235   g_return_val_if_fail (G_VALUE_HOLDS_FLAGS (property_value), FALSE);
1236
1237   class = G_PARAM_SPEC_FLAGS (pspec)->flags_class;
1238   scanner = gtk_rc_scanner_new ();
1239   g_scanner_input_text (scanner, gstring->str, gstring->len);
1240
1241   /* parse either a single flags value or a "\( ... [ \| ... ] \)" compound */
1242   if (g_scanner_peek_next_token (scanner) == G_TOKEN_IDENTIFIER ||
1243       scanner->next_token == G_TOKEN_INT)
1244     {
1245       guint token, flags_value = 0;
1246
1247       token = parse_flags_value (scanner, class, &flags_value);
1248
1249       if (token == G_TOKEN_NONE && g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1250         {
1251           success = TRUE;
1252           g_value_set_flags (property_value, flags_value);
1253         }
1254
1255     }
1256   else if (g_scanner_get_next_token (scanner) == '(')
1257     {
1258       guint token, flags_value = 0;
1259
1260       /* parse first value */
1261       token = parse_flags_value (scanner, class, &flags_value);
1262
1263       /* parse nth values, preceeded by '|' */
1264       while (token == G_TOKEN_NONE && g_scanner_get_next_token (scanner) == '|')
1265         token = parse_flags_value (scanner, class, &flags_value);
1266
1267       /* done, last token must have closed expression */
1268       if (token == G_TOKEN_NONE && scanner->token == ')' &&
1269           g_scanner_peek_next_token (scanner) == G_TOKEN_EOF)
1270         {
1271           g_value_set_flags (property_value, flags_value);
1272           success = TRUE;
1273         }
1274     }
1275   g_scanner_destroy (scanner);
1276
1277   return success;
1278 }
1279
1280 static gboolean
1281 get_braced_int (GScanner *scanner,
1282                 gboolean  first,
1283                 gboolean  last,
1284                 gint     *value)
1285 {
1286   if (first)
1287     {
1288       g_scanner_get_next_token (scanner);
1289       if (scanner->token != '{')
1290         return FALSE;
1291     }
1292
1293   g_scanner_get_next_token (scanner);
1294   if (scanner->token != G_TOKEN_INT)
1295     return FALSE;
1296
1297   *value = scanner->value.v_int;
1298
1299   if (last)
1300     {
1301       g_scanner_get_next_token (scanner);
1302       if (scanner->token != '}')
1303         return FALSE;
1304     }
1305   else
1306     {
1307       g_scanner_get_next_token (scanner);
1308       if (scanner->token != ',')
1309         return FALSE;
1310     }
1311
1312   return TRUE;
1313 }
1314
1315 /**
1316  * gtk_rc_property_parse_requisition:
1317  * @pspec: a #GParamSpec
1318  * @gstring: the #GString to be parsed
1319  * @property_value: a #GValue which must hold boxed values.
1320  *
1321  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1322  * or gtk_widget_class_install_style_property_parser() which parses a
1323  * requisition in the form
1324  * <literal>"{ width, height }"</literal> for integers %width and %height.
1325  *
1326  * Return value: %TRUE if @gstring could be parsed and @property_value
1327  * has been set to the resulting #GtkRequisition.
1328  **/
1329 gboolean
1330 gtk_rc_property_parse_requisition  (const GParamSpec *pspec,
1331                                     const GString    *gstring,
1332                                     GValue           *property_value)
1333 {
1334   GtkRequisition requisition;
1335   GScanner *scanner;
1336   gboolean success = FALSE;
1337
1338   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1339   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1340
1341   scanner = gtk_rc_scanner_new ();
1342   g_scanner_input_text (scanner, gstring->str, gstring->len);
1343
1344   if (get_braced_int (scanner, TRUE, FALSE, &requisition.width) &&
1345       get_braced_int (scanner, FALSE, TRUE, &requisition.height))
1346     {
1347       g_value_set_boxed (property_value, &requisition);
1348       success = TRUE;
1349     }
1350
1351   g_scanner_destroy (scanner);
1352
1353   return success;
1354 }
1355
1356 /**
1357  * gtk_rc_property_parse_border:
1358  * @pspec: a #GParamSpec
1359  * @gstring: the #GString to be parsed
1360  * @property_value: a #GValue which must hold boxed values.
1361  *
1362  * A #GtkRcPropertyParser for use with gtk_settings_install_property_parser()
1363  * or gtk_widget_class_install_style_property_parser() which parses
1364  * borders in the form
1365  * <literal>"{ left, right, top, bottom }"</literal> for integers
1366  * %left, %right, %top and %bottom.
1367  *
1368  * Return value: %TRUE if @gstring could be parsed and @property_value
1369  * has been set to the resulting #GtkBorder.
1370  **/
1371 gboolean
1372 gtk_rc_property_parse_border (const GParamSpec *pspec,
1373                               const GString    *gstring,
1374                               GValue           *property_value)
1375 {
1376   GtkBorder border;
1377   GScanner *scanner;
1378   gboolean success = FALSE;
1379
1380   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1381   g_return_val_if_fail (G_VALUE_HOLDS_BOXED (property_value), FALSE);
1382
1383   scanner = gtk_rc_scanner_new ();
1384   g_scanner_input_text (scanner, gstring->str, gstring->len);
1385
1386   if (get_braced_int (scanner, TRUE, FALSE, &border.left) &&
1387       get_braced_int (scanner, FALSE, FALSE, &border.right) &&
1388       get_braced_int (scanner, FALSE, FALSE, &border.top) &&
1389       get_braced_int (scanner, FALSE, TRUE, &border.bottom))
1390     {
1391       g_value_set_boxed (property_value, &border);
1392       success = TRUE;
1393     }
1394
1395   g_scanner_destroy (scanner);
1396
1397   return success;
1398 }
1399
1400 void
1401 _gtk_settings_handle_event (GdkEventSetting *event)
1402 {
1403   GtkSettings *settings = gtk_settings_get_for_screen (gdk_drawable_get_screen (event->window));
1404
1405   if (g_object_class_find_property (G_OBJECT_GET_CLASS (settings), event->name))
1406     g_object_notify (G_OBJECT (settings), event->name);
1407 }
1408
1409 static void
1410 reset_rc_values_foreach (GQuark    key_id,
1411                          gpointer  data,
1412                          gpointer  user_data)
1413 {
1414   GtkSettingsValuePrivate *qvalue = data;
1415   GSList **to_reset = user_data;
1416
1417   if (qvalue->source == GTK_SETTINGS_SOURCE_RC_FILE)
1418     *to_reset = g_slist_prepend (*to_reset, GUINT_TO_POINTER (key_id));
1419 }
1420
1421 void
1422 _gtk_settings_reset_rc_values (GtkSettings *settings)
1423 {
1424   GSList *to_reset = NULL;
1425   GSList *tmp_list;
1426   GParamSpec **pspecs, **p;
1427   gint i;
1428
1429   /* Remove any queued settings
1430    */
1431   g_datalist_foreach (&settings->queued_settings,
1432                       reset_rc_values_foreach,
1433                       &to_reset);
1434
1435   for (tmp_list = to_reset; tmp_list; tmp_list = tmp_list->next)
1436     {
1437       GQuark key_id = GPOINTER_TO_UINT (tmp_list->data);
1438       g_datalist_id_remove_data (&settings->queued_settings, key_id);
1439     }
1440
1441   /* Now reset the active settings
1442    */
1443   pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (settings), NULL);
1444   i = 0;
1445
1446   g_object_freeze_notify (G_OBJECT (settings));
1447   for (p = pspecs; *p; p++)
1448     {
1449       if (settings->property_values[i].source == GTK_SETTINGS_SOURCE_RC_FILE)
1450         {
1451           GParamSpec *pspec = *p;
1452
1453           g_param_value_set_default (pspec, &settings->property_values[i].value);
1454           g_object_notify (G_OBJECT (settings), pspec->name);
1455         }
1456       i++;
1457     }
1458   g_object_thaw_notify (G_OBJECT (settings));
1459   g_free (pspecs);
1460 }
1461
1462 static void
1463 settings_update_double_click (GtkSettings *settings)
1464 {
1465   if (gdk_screen_get_number (settings->screen) == 0)
1466     {
1467       GdkDisplay *display = gdk_screen_get_display (settings->screen);
1468       gint double_click_time;
1469       gint double_click_distance;
1470
1471       g_object_get (settings,
1472                     "gtk-double-click-time", &double_click_time,
1473                     "gtk-double-click-distance", &double_click_distance,
1474                     NULL);
1475
1476       gdk_display_set_double_click_time (display, double_click_time);
1477       gdk_display_set_double_click_distance (display, double_click_distance);
1478     }
1479 }
1480
1481 static void
1482 settings_update_modules (GtkSettings *settings)
1483 {
1484   gchar *modules;
1485
1486   g_object_get (settings,
1487                 "gtk-modules", &modules,
1488                 NULL);
1489
1490   _gtk_modules_settings_changed (settings, modules);
1491
1492   g_free (modules);
1493 }
1494
1495 #ifdef GDK_WINDOWING_X11
1496 static void
1497 settings_update_cursor_theme (GtkSettings *settings)
1498 {
1499   GdkDisplay *display = gdk_screen_get_display (settings->screen);
1500   gchar *theme = NULL;
1501   gint size = 0;
1502
1503   g_object_get (settings,
1504                 "gtk-cursor-theme-name", &theme,
1505                 "gtk-cursor-theme-size", &size,
1506                 NULL);
1507
1508   gdk_x11_display_set_cursor_theme (display, theme, size);
1509
1510   g_free (theme);
1511 }
1512
1513 static void
1514 settings_update_font_options (GtkSettings *settings)
1515 {
1516   gint hinting;
1517   gchar *hint_style_str;
1518   cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_DEFAULT;
1519   gint antialias;
1520   cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_DEFAULT;
1521   gchar *rgba_str;
1522   cairo_subpixel_order_t subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
1523   cairo_font_options_t *options;
1524
1525   g_object_get (settings,
1526                 "gtk-xft-antialias", &antialias,
1527                 "gtk-xft-hinting", &hinting,
1528                 "gtk-xft-hintstyle", &hint_style_str,
1529                 "gtk-xft-rgba", &rgba_str,
1530                 NULL);
1531
1532   options = cairo_font_options_create ();
1533
1534   /* hint_metrics = FALSE should never be set for user interface code.
1535    */
1536   cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
1537
1538   if (hinting >= 0 && !hinting)
1539     {
1540       hint_style = CAIRO_HINT_STYLE_NONE;
1541     }
1542   else if (hint_style_str)
1543     {
1544       if (strcmp (hint_style_str, "hintnone") == 0)
1545         hint_style = CAIRO_HINT_STYLE_NONE;
1546       else if (strcmp (hint_style_str, "hintslight") == 0)
1547         hint_style = CAIRO_HINT_STYLE_SLIGHT;
1548       else if (strcmp (hint_style_str, "hintmedium") == 0)
1549         hint_style = CAIRO_HINT_STYLE_MEDIUM;
1550       else if (strcmp (hint_style_str, "hintfull") == 0)
1551         hint_style = CAIRO_HINT_STYLE_FULL;
1552     }
1553
1554   if (hint_style_str)
1555     g_free (hint_style_str);
1556
1557   cairo_font_options_set_hint_style (options, hint_style);
1558
1559   if (rgba_str)
1560     {
1561       if (strcmp (rgba_str, "rgb") == 0)
1562         subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
1563       else if (strcmp (rgba_str, "bgr") == 0)
1564         subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
1565       else if (strcmp (rgba_str, "vrgb") == 0)
1566         subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
1567       else if (strcmp (rgba_str, "vbgr") == 0)
1568         subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
1569
1570       g_free (rgba_str);
1571     }
1572
1573   cairo_font_options_set_subpixel_order (options, subpixel_order);
1574
1575   if (antialias >= 0 && !antialias)
1576     antialias_mode = CAIRO_ANTIALIAS_NONE;
1577   else if (subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
1578     antialias_mode = CAIRO_ANTIALIAS_SUBPIXEL;
1579   else if (antialias >= 0)
1580     antialias_mode = CAIRO_ANTIALIAS_GRAY;
1581
1582   cairo_font_options_set_antialias (options, antialias_mode);
1583
1584   gdk_screen_set_font_options (settings->screen, options);
1585
1586   cairo_font_options_destroy (options);
1587 }
1588
1589 static void
1590 settings_update_resolution (GtkSettings *settings)
1591 {
1592   gint dpi_int;
1593   double dpi;
1594
1595   g_object_get (settings,
1596                 "gtk-xft-dpi", &dpi_int,
1597                 NULL);
1598
1599   if (dpi_int > 0)
1600     dpi = dpi_int / 1024.;
1601   else
1602     dpi = -1.;
1603
1604   gdk_screen_set_resolution (settings->screen, dpi);
1605 }
1606 #endif
1607
1608 static void
1609 settings_update_color_scheme (GtkSettings *settings)
1610 {
1611   gchar *dummy;
1612
1613   g_object_get (settings, "gtk-color-scheme", &dummy, NULL);
1614
1615   /* nothing to do here, the color hash is updated as a
1616    * side effect of getting the color scheme
1617    */
1618
1619   g_free (dummy);
1620 }
1621
1622
1623 typedef struct {
1624   GHashTable *color_hash;
1625   gchar *tables[GTK_SETTINGS_SOURCE_APPLICATION + 1];
1626 } ColorSchemeData;
1627
1628
1629 static gboolean
1630 update_color_hash (ColorSchemeData   *data,
1631                    const gchar       *str,
1632                    GtkSettingsSource  source)
1633 {
1634   gchar *copy, *s, *p, *name;
1635   GdkColor color;
1636   gboolean changed = FALSE;
1637
1638   if (data->tables[source] == NULL && str == NULL)
1639     return FALSE;
1640
1641   if (data->tables[source] != NULL && str != NULL &&
1642       strcmp (data->tables[source], str) == 0)
1643     return FALSE;
1644
1645   g_free (data->tables[source]);
1646   data->tables[source] = g_strdup (str);
1647
1648   copy = g_strdup (str);
1649
1650   s = copy;
1651   while (s && *s)
1652     {
1653       name = s;
1654       p = strchr (s, ':');
1655       if (p)
1656         {
1657           *p = '\0';
1658           p++;
1659         }
1660       else
1661         break;
1662
1663       while (*p == ' ')
1664         p++;
1665
1666       s = p;
1667       while (*s)
1668         {
1669           if (*s == '\n')
1670             {
1671               *s = '\0';
1672               s++;
1673               break;
1674             }
1675           s++;
1676         }
1677
1678       if (gdk_color_parse (p, &color))
1679         {
1680           GdkColor *old;
1681
1682           old = g_hash_table_lookup (data->color_hash, name);
1683           if (!old ||
1684               (old->pixel <= source && !gdk_color_equal (old, &color)))
1685             {
1686               GdkColor *new;
1687
1688               new = gdk_color_copy (&color);
1689               new->pixel = source;
1690
1691               g_hash_table_insert (data->color_hash, g_strdup (name), new);
1692
1693               changed = TRUE;
1694             }
1695         }
1696     }
1697
1698   g_free (copy);
1699
1700   return changed;
1701 }
1702
1703 static void
1704 color_scheme_data_free (ColorSchemeData *data)
1705 {
1706   gint i;
1707
1708   g_hash_table_unref (data->color_hash);
1709
1710   for (i = 0; i <= GTK_SETTINGS_SOURCE_APPLICATION; i++)
1711     g_free (data->tables[i]);
1712
1713   g_free (data);
1714 }
1715
1716 static void
1717 merge_color_scheme (GtkSettings       *settings,
1718                     GValue            *value,
1719                     GtkSettingsSource  source)
1720 {
1721   ColorSchemeData *data;
1722   const gchar *colors;
1723
1724   colors = g_value_get_string (value);
1725
1726   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
1727                                                  "gtk-color-scheme");
1728   if (!data)
1729     {
1730       data = g_new0 (ColorSchemeData, 1);
1731       data->color_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
1732                                                 (GDestroyNotify) gdk_color_free);
1733       g_object_set_data_full (G_OBJECT (settings), "gtk-color-scheme",
1734                               data, (GDestroyNotify) color_scheme_data_free);
1735     }
1736
1737   if (update_color_hash (data, colors, source))
1738     g_object_notify (G_OBJECT (settings), "color-hash");
1739 }
1740
1741 static GHashTable *
1742 get_color_hash (GtkSettings *settings)
1743 {
1744   ColorSchemeData *data;
1745
1746   if (!g_object_get_data (G_OBJECT (settings), "gtk-color-scheme"))
1747     settings_update_color_scheme (settings);
1748
1749   data = (ColorSchemeData *)g_object_get_data (G_OBJECT (settings),
1750                                                "gtk-color-scheme");
1751
1752   if (!data)
1753     return NULL;
1754
1755   return data->color_hash;
1756 }
1757
1758 static void
1759 append_color_scheme (gpointer key,
1760                      gpointer value,
1761                      gpointer data)
1762 {
1763   gchar *name = (gchar *)key;
1764   GdkColor *color = (GdkColor *)value;
1765   GString *string = (GString *)data;
1766
1767   g_string_append_printf (string, "%s: #%04x%04x%04x\n",
1768                           name, color->red, color->green, color->blue);
1769 }
1770
1771 static gchar *
1772 get_color_scheme (GtkSettings *settings)
1773 {
1774   ColorSchemeData *data;
1775   GString *string;
1776
1777   data = (ColorSchemeData *) g_object_get_data (G_OBJECT (settings),
1778                                                 "gtk-color-scheme");
1779
1780   string = g_string_new ("");
1781
1782   g_hash_table_foreach (data->color_hash, append_color_scheme, string);
1783
1784   return g_string_free (string, FALSE);
1785 }
1786
1787
1788 #define __GTK_SETTINGS_C__
1789 #include "gtkaliasdef.c"