src/widgets/styles/qgtkstyle_p.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
   4 ** Contact: http://www.qt-project.org/legal
   5 **
   6 ** This file is part of the QtGui module of the Qt Toolkit.
   7 **
   8 ** $QT_BEGIN_LICENSE:LGPL$
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  10 ** Licensees holding valid commercial Qt licenses may use this file in
  11 ** accordance with the commercial license agreement provided with the
  12 ** Software or, alternatively, in accordance with the terms contained in
  13 ** a written agreement between you and Digia.  For licensing terms and
  14 ** conditions see http://qt.digia.com/licensing.  For further information
  15 ** use the contact form at http://qt.digia.com/contact-us.
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  18 ** Alternatively, this file may be used under the terms of the GNU Lesser
  19 ** General Public License version 2.1 as published by the Free Software
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  21 ** packaging of this file.  Please review the following information to
  22 ** ensure the GNU Lesser General Public License version 2.1 requirements
  23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  24 **
  25 ** In addition, as a special exception, Digia gives you certain additional
  26 ** rights.  These rights are described in the Digia Qt LGPL Exception
  27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  28 **
  29 ** GNU General Public License Usage
  30 ** Alternatively, this file may be used under the terms of the GNU
  31 ** General Public License version 3.0 as published by the Free Software
  32 ** Foundation and appearing in the file LICENSE.GPL included in the
  33 ** packaging of this file.  Please review the following information to
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  35 ** met: http://www.gnu.org/copyleft/gpl.html.
  36 **
  37 **
  38 ** $QT_END_LICENSE$
  39 **
  40 ****************************************************************************/
  41
  42 #include "qgtkstyle_p.h"
  43
  44 // This file is responsible for resolving all GTK functions we use
  45 // dynamically. This is done to avoid link-time dependancy on GTK
  46 // as well as crashes occurring due to usage of the GTK_QT engines
  47 //
  48 // Additionally we create a map of common GTK widgets that we can pass
  49 // to the GTK theme engine as many engines resort to querying the
  50 // actual widget pointers for details that are not covered by the
  51 // state flags
  52
  53 #include <QtCore/qglobal.h>
  54 #if !defined(QT_NO_STYLE_GTK)
  55
  56 #include <QtCore/QEvent>
  57 #include <QtCore/QFile>
  58 #include <QtCore/QStringList>
  59 #include <QtCore/QTextStream>
  60 #include <QtCore/QHash>
  61 #include <QtCore/QUrl>
  62 #include <QtCore/QLibrary>
  63 #include <QtCore/QDebug>
  64
  65 #include <private/qapplication_p.h>
  66 #include <private/qiconloader_p.h>
  67
  68 #include <QtWidgets/QMenu>
  69 #include <QtWidgets/QStyle>
  70 #include <QtWidgets/QApplication>
  71 #include <QtGui/QPixmapCache>
  72 #include <QtWidgets/QStatusBar>
  73 #include <QtWidgets/QMenuBar>
  74 #include <QtWidgets/QToolBar>
  75 #include <QtWidgets/QToolButton>
  76
  77 // X11 Includes:
  78
  79 // the following is necessary to work around breakage in many versions
  80 // of XFree86's Xlib.h still in use
  81 // ### which versions?
  82 #if defined(_XLIB_H_) // crude hack, but...
  83 #error "cannot include <X11/Xlib.h> before this file"
  84 #endif
  85 #define XRegisterIMInstantiateCallback qt_XRegisterIMInstantiateCallback
  86 #define XUnregisterIMInstantiateCallback qt_XUnregisterIMInstantiateCallback
  87 #define XSetIMValues qt_XSetIMValues
  88 #include <X11/Xlib.h>
  89 #undef XRegisterIMInstantiateCallback
  90 #undef XUnregisterIMInstantiateCallback
  91 #undef XSetIMValues
  92
  93 QT_BEGIN_NAMESPACE
  94
  95 Q_GLOBAL_STATIC(QGtkStyleUpdateScheduler, styleScheduler)
  96
  97 Ptr_gtk_container_forall QGtkStylePrivate::gtk_container_forall = 0;
  98 Ptr_gtk_init QGtkStylePrivate::gtk_init = 0;
  99 Ptr_gtk_style_attach QGtkStylePrivate::gtk_style_attach = 0;
 100 Ptr_gtk_window_new QGtkStylePrivate::gtk_window_new = 0;
 101 Ptr_gtk_widget_destroy QGtkStylePrivate::gtk_widget_destroy = 0;
 102 Ptr_gtk_widget_realize QGtkStylePrivate::gtk_widget_realize = 0;
 103 Ptr_gtk_widget_set_default_direction QGtkStylePrivate::gtk_widget_set_default_direction = 0;
 104 Ptr_gtk_widget_modify_color QGtkStylePrivate::gtk_widget_modify_fg = 0;
 105 Ptr_gtk_widget_modify_color QGtkStylePrivate::gtk_widget_modify_bg = 0;
 106 Ptr_gtk_arrow_new QGtkStylePrivate::gtk_arrow_new = 0;
 107 Ptr_gtk_menu_item_new_with_label QGtkStylePrivate::gtk_menu_item_new_with_label = 0;
 108 Ptr_gtk_check_menu_item_new_with_label QGtkStylePrivate::gtk_check_menu_item_new_with_label = 0;
 109 Ptr_gtk_menu_bar_new QGtkStylePrivate::gtk_menu_bar_new = 0;
 110 Ptr_gtk_menu_new QGtkStylePrivate::gtk_menu_new = 0;
 111 Ptr_gtk_button_new QGtkStylePrivate::gtk_button_new = 0;
 112 Ptr_gtk_tool_button_new QGtkStylePrivate::gtk_tool_button_new = 0;
 113 Ptr_gtk_hbutton_box_new QGtkStylePrivate::gtk_hbutton_box_new = 0;
 114 Ptr_gtk_check_button_new QGtkStylePrivate::gtk_check_button_new = 0;
 115 Ptr_gtk_radio_button_new QGtkStylePrivate::gtk_radio_button_new = 0;
 116 Ptr_gtk_spin_button_new QGtkStylePrivate::gtk_spin_button_new = 0;
 117 Ptr_gtk_frame_new QGtkStylePrivate::gtk_frame_new = 0;
 118 Ptr_gtk_expander_new QGtkStylePrivate::gtk_expander_new = 0;
 119 Ptr_gtk_statusbar_new QGtkStylePrivate::gtk_statusbar_new = 0;
 120 Ptr_gtk_entry_new QGtkStylePrivate::gtk_entry_new = 0;
 121 Ptr_gtk_hscale_new QGtkStylePrivate::gtk_hscale_new = 0;
 122 Ptr_gtk_vscale_new QGtkStylePrivate::gtk_vscale_new = 0;
 123 Ptr_gtk_hscrollbar_new QGtkStylePrivate::gtk_hscrollbar_new = 0;
 124 Ptr_gtk_vscrollbar_new QGtkStylePrivate::gtk_vscrollbar_new = 0;
 125 Ptr_gtk_scrolled_window_new QGtkStylePrivate::gtk_scrolled_window_new = 0;
 126 Ptr_gtk_notebook_new QGtkStylePrivate::gtk_notebook_new = 0;
 127 Ptr_gtk_toolbar_new QGtkStylePrivate::gtk_toolbar_new = 0;
 128 Ptr_gtk_toolbar_insert QGtkStylePrivate::gtk_toolbar_insert = 0;
 129 Ptr_gtk_separator_tool_item_new QGtkStylePrivate::gtk_separator_tool_item_new = 0;
 130 Ptr_gtk_tree_view_new QGtkStylePrivate::gtk_tree_view_new = 0;
 131 Ptr_gtk_combo_box_new QGtkStylePrivate::gtk_combo_box_new = 0;
 132 Ptr_gtk_combo_box_entry_new QGtkStylePrivate::gtk_combo_box_entry_new = 0;
 133 Ptr_gtk_progress_bar_new QGtkStylePrivate::gtk_progress_bar_new = 0;
 134 Ptr_gtk_container_add QGtkStylePrivate::gtk_container_add = 0;
 135 Ptr_gtk_menu_shell_append QGtkStylePrivate::gtk_menu_shell_append = 0;
 136 Ptr_gtk_progress_configure QGtkStylePrivate::gtk_progress_configure = 0;
 137 Ptr_gtk_range_get_adjustment QGtkStylePrivate::gtk_range_get_adjustment = 0;
 138 Ptr_gtk_range_set_adjustment QGtkStylePrivate::gtk_range_set_adjustment = 0;
 139 Ptr_gtk_range_set_inverted QGtkStylePrivate::gtk_range_set_inverted = 0;
 140 Ptr_gtk_icon_factory_lookup_default QGtkStylePrivate::gtk_icon_factory_lookup_default = 0;
 141 Ptr_gtk_icon_theme_get_default QGtkStylePrivate::gtk_icon_theme_get_default = 0;
 142 Ptr_gtk_widget_style_get QGtkStylePrivate::gtk_widget_style_get = 0;
 143 Ptr_gtk_icon_set_render_icon QGtkStylePrivate::gtk_icon_set_render_icon = 0;
 144 Ptr_gtk_fixed_new QGtkStylePrivate::gtk_fixed_new = 0;
 145 Ptr_gtk_tree_view_column_new QGtkStylePrivate::gtk_tree_view_column_new = 0;
 146 Ptr_gtk_tree_view_get_column QGtkStylePrivate::gtk_tree_view_get_column = 0;
 147 Ptr_gtk_tree_view_append_column QGtkStylePrivate::gtk_tree_view_append_column = 0;
 148 Ptr_gtk_paint_check QGtkStylePrivate::gtk_paint_check = 0;
 149 Ptr_gtk_paint_box QGtkStylePrivate::gtk_paint_box = 0;
 150 Ptr_gtk_paint_box_gap QGtkStylePrivate::gtk_paint_box_gap = 0;
 151 Ptr_gtk_paint_flat_box QGtkStylePrivate::gtk_paint_flat_box = 0;
 152 Ptr_gtk_paint_option QGtkStylePrivate::gtk_paint_option = 0;
 153 Ptr_gtk_paint_extension QGtkStylePrivate::gtk_paint_extension = 0;
 154 Ptr_gtk_paint_slider QGtkStylePrivate::gtk_paint_slider = 0;
 155 Ptr_gtk_paint_shadow QGtkStylePrivate::gtk_paint_shadow = 0;
 156 Ptr_gtk_paint_resize_grip QGtkStylePrivate::gtk_paint_resize_grip = 0;
 157 Ptr_gtk_paint_focus QGtkStylePrivate::gtk_paint_focus = 0;
 158 Ptr_gtk_paint_arrow QGtkStylePrivate::gtk_paint_arrow = 0;
 159 Ptr_gtk_paint_handle QGtkStylePrivate::gtk_paint_handle = 0;
 160 Ptr_gtk_paint_expander QGtkStylePrivate::gtk_paint_expander = 0;
 161 Ptr_gtk_adjustment_configure QGtkStylePrivate::gtk_adjustment_configure = 0;
 162 Ptr_gtk_adjustment_new QGtkStylePrivate::gtk_adjustment_new = 0;
 163 Ptr_gtk_paint_hline QGtkStylePrivate::gtk_paint_hline = 0;
 164 Ptr_gtk_paint_vline QGtkStylePrivate::gtk_paint_vline = 0;
 165 Ptr_gtk_menu_item_set_submenu QGtkStylePrivate::gtk_menu_item_set_submenu = 0;
 166 Ptr_gtk_settings_get_default QGtkStylePrivate::gtk_settings_get_default = 0;
 167 Ptr_gtk_separator_menu_item_new QGtkStylePrivate::gtk_separator_menu_item_new = 0;
 168 Ptr_gtk_widget_size_allocate QGtkStylePrivate::gtk_widget_size_allocate = 0;
 169 Ptr_gtk_widget_size_request QGtkStylePrivate::gtk_widget_size_request = 0;
 170 Ptr_gtk_widget_set_direction QGtkStylePrivate::gtk_widget_set_direction = 0;
 171 Ptr_gtk_widget_path QGtkStylePrivate::gtk_widget_path = 0;
 172 Ptr_gtk_container_get_type QGtkStylePrivate::gtk_container_get_type = 0;
 173 Ptr_gtk_window_get_type QGtkStylePrivate::gtk_window_get_type = 0;
 174 Ptr_gtk_widget_get_type QGtkStylePrivate::gtk_widget_get_type = 0;
 175 Ptr_gtk_widget_get_parent QGtkStylePrivate::gtk_widget_get_parent = 0;
 176 Ptr_gtk_widget_is_toplevel QGtkStylePrivate::gtk_widget_is_toplevel = 0;
 177 Ptr_gtk_rc_get_style_by_paths QGtkStylePrivate::gtk_rc_get_style_by_paths = 0;
 178 Ptr_gtk_check_version QGtkStylePrivate::gtk_check_version = 0;
 179 Ptr_gtk_border_free QGtkStylePrivate::gtk_border_free = 0;
 180 Ptr_gtk_widget_get_allocation QGtkStylePrivate::gtk_widget_get_allocation = 0;
 181 Ptr_gtk_widget_set_allocation QGtkStylePrivate::gtk_widget_set_allocation = 0;
 182
 183 Ptr_pango_font_description_get_size QGtkStylePrivate::pango_font_description_get_size = 0;
 184 Ptr_pango_font_description_get_weight QGtkStylePrivate::pango_font_description_get_weight = 0;
 185 Ptr_pango_font_description_get_family QGtkStylePrivate::pango_font_description_get_family = 0;
 186 Ptr_pango_font_description_get_style QGtkStylePrivate::pango_font_description_get_style = 0;
 187
 188 Ptr_gtk_file_filter_new QGtkStylePrivate::gtk_file_filter_new = 0;
 189 Ptr_gtk_file_filter_set_name QGtkStylePrivate::gtk_file_filter_set_name = 0;
 190 Ptr_gtk_file_filter_add_pattern QGtkStylePrivate::gtk_file_filter_add_pattern = 0;
 191 Ptr_gtk_file_chooser_add_filter QGtkStylePrivate::gtk_file_chooser_add_filter = 0;
 192 Ptr_gtk_file_chooser_set_filter QGtkStylePrivate::gtk_file_chooser_set_filter = 0;
 193 Ptr_gtk_file_chooser_get_filter QGtkStylePrivate::gtk_file_chooser_get_filter = 0;
 194 Ptr_gtk_file_chooser_dialog_new QGtkStylePrivate::gtk_file_chooser_dialog_new = 0;
 195 Ptr_gtk_file_chooser_set_current_folder QGtkStylePrivate::gtk_file_chooser_set_current_folder = 0;
 196 Ptr_gtk_file_chooser_get_filename QGtkStylePrivate::gtk_file_chooser_get_filename = 0;
 197 Ptr_gtk_file_chooser_get_filenames QGtkStylePrivate::gtk_file_chooser_get_filenames = 0;
 198 Ptr_gtk_file_chooser_set_current_name QGtkStylePrivate::gtk_file_chooser_set_current_name = 0;
 199 Ptr_gtk_dialog_run QGtkStylePrivate::gtk_dialog_run = 0;
 200 Ptr_gtk_file_chooser_set_filename QGtkStylePrivate::gtk_file_chooser_set_filename = 0;
 201
 202 Ptr_gdk_pixbuf_get_pixels QGtkStylePrivate::gdk_pixbuf_get_pixels = 0;
 203 Ptr_gdk_pixbuf_get_width QGtkStylePrivate::gdk_pixbuf_get_width = 0;
 204 Ptr_gdk_pixbuf_get_height QGtkStylePrivate::gdk_pixbuf_get_height = 0;
 205 Ptr_gdk_pixmap_new QGtkStylePrivate::gdk_pixmap_new = 0;
 206 Ptr_gdk_pixbuf_new QGtkStylePrivate::gdk_pixbuf_new = 0;
 207 Ptr_gdk_pixbuf_get_from_drawable QGtkStylePrivate::gdk_pixbuf_get_from_drawable = 0;
 208 Ptr_gdk_draw_rectangle QGtkStylePrivate::gdk_draw_rectangle = 0;
 209 Ptr_gdk_pixbuf_unref QGtkStylePrivate::gdk_pixbuf_unref = 0;
 210 Ptr_gdk_drawable_unref QGtkStylePrivate::gdk_drawable_unref = 0;
 211 Ptr_gdk_color_free QGtkStylePrivate::gdk_color_free = 0;
 212 Ptr_gdk_x11_window_set_user_time QGtkStylePrivate::gdk_x11_window_set_user_time = 0;
 213 Ptr_gdk_x11_drawable_get_xid QGtkStylePrivate::gdk_x11_drawable_get_xid = 0;
 214 Ptr_gdk_x11_drawable_get_xdisplay QGtkStylePrivate::gdk_x11_drawable_get_xdisplay = 0;
 215
 216 Ptr_gconf_client_get_default QGtkStylePrivate::gconf_client_get_default = 0;
 217 Ptr_gconf_client_get_string QGtkStylePrivate::gconf_client_get_string = 0;
 218 Ptr_gconf_client_get_bool QGtkStylePrivate::gconf_client_get_bool = 0;
 219
 220 Ptr_gnome_icon_lookup_sync QGtkStylePrivate::gnome_icon_lookup_sync = 0;
 221 Ptr_gnome_vfs_init QGtkStylePrivate::gnome_vfs_init = 0;
 222
 223 typedef int (*x11ErrorHandler)(Display*, XErrorEvent*);
 224
 225 QT_END_NAMESPACE
 226
 227 Q_DECLARE_METATYPE(QGtkStylePrivate*);
 228
 229 QT_BEGIN_NAMESPACE
 230
 231 static void gtkStyleSetCallback(GtkWidget*)
 232 {
 233     qRegisterMetaType<QGtkStylePrivate *>();
 234
 235     // We have to let this function return and complete the event
 236     // loop to ensure that all gtk widgets have been styled before
 237     // updating
 238     QMetaObject::invokeMethod(styleScheduler(), "updateTheme", Qt::QueuedConnection);
 239 }
 240
 241 static void update_toolbar_style(GtkWidget *gtkToolBar, GParamSpec *, gpointer)
 242 {
 243     GtkToolbarStyle toolbar_style = GTK_TOOLBAR_ICONS;
 244     g_object_get(gtkToolBar, "toolbar-style", &toolbar_style, NULL);
 245     QWidgetList widgets = QApplication::allWidgets();
 246     for (int i = 0; i < widgets.size(); ++i) {
 247         QWidget *widget = widgets.at(i);
 248         if (qobject_cast<QToolButton*>(widget)) {
 249             QEvent event(QEvent::StyleChange);
 250             QApplication::sendEvent(widget, &event);
 251         }
 252     }
 253 }
 254
 255 static QHashableLatin1Literal classPath(GtkWidget *widget)
 256 {
 257     char *class_path;
 258     QGtkStylePrivate::gtk_widget_path (widget, NULL, &class_path, NULL);
 259
 260     char *copy = class_path;
 261     if (strncmp(copy, "GtkWindow.", 10) == 0)
 262         copy += 10;
 263     if (strncmp(copy, "GtkFixed.", 9) == 0)
 264         copy += 9;
 265
 266     copy = strdup(copy);
 267
 268     g_free(class_path);
 269
 270     return QHashableLatin1Literal::fromData(copy);
 271 }
 272
 273
 274
 275 bool QGtkStyleFilter::eventFilter(QObject *obj, QEvent *e)
 276 {
 277     if (e->type() == QEvent::ApplicationPaletteChange) {
 278         // Only do this the first time since this will also
 279         // generate applicationPaletteChange events
 280         if (!qt_app_palettes_hash() ||  qt_app_palettes_hash()->isEmpty()) {
 281             stylePrivate->applyCustomPaletteHash();
 282         }
 283     }
 284     return QObject::eventFilter(obj, e);
 285 }
 286
 287 QList<QGtkStylePrivate *> QGtkStylePrivate::instances;
 288 QGtkStylePrivate::WidgetMap *QGtkStylePrivate::widgetMap = 0;
 289
 290 QGtkStylePrivate::QGtkStylePrivate()
 291   : QWindowsStylePrivate()
 292   , filter(this)
 293 {
 294     instances.append(this);
 295 }
 296
 297 QGtkStylePrivate::~QGtkStylePrivate()
 298 {
 299     instances.removeOne(this);
 300 }
 301
 302 void QGtkStylePrivate::init()
 303 {
 304     resolveGtk();
 305     initGtkWidgets();
 306 }
 307
 308 GtkWidget* QGtkStylePrivate::gtkWidget(const QHashableLatin1Literal &path)
 309 {
 310     GtkWidget *widget = gtkWidgetMap()->value(path);
 311     if (!widget) {
 312         // Theme might have rearranged widget internals
 313         widget = gtkWidgetMap()->value(path);
 314     }
 315     return widget;
 316 }
 317
 318 GtkStyle* QGtkStylePrivate::gtkStyle(const QHashableLatin1Literal &path)
 319 {
 320     if (GtkWidget *w = gtkWidgetMap()->value(path))
 321         return w->style;
 322     return 0;
 323 }
 324
 325 /*! \internal
 326  *  Get references to gtk functions after we dynamically load the library.
 327  */
 328 void QGtkStylePrivate::resolveGtk() const
 329 {
 330     // enforce the "0" suffix, so we'll open libgtk-x11-2.0.so.0
 331     QLibrary libgtk(QLS("gtk-x11-2.0"), 0, 0);
 332
 333     gtk_init = (Ptr_gtk_init)libgtk.resolve("gtk_init");
 334     gtk_window_new = (Ptr_gtk_window_new)libgtk.resolve("gtk_window_new");
 335     gtk_style_attach = (Ptr_gtk_style_attach)libgtk.resolve("gtk_style_attach");
 336     gtk_widget_destroy = (Ptr_gtk_widget_destroy)libgtk.resolve("gtk_widget_destroy");
 337     gtk_widget_realize = (Ptr_gtk_widget_realize)libgtk.resolve("gtk_widget_realize");
 338
 339     gtk_file_chooser_set_current_folder = (Ptr_gtk_file_chooser_set_current_folder)libgtk.resolve("gtk_file_chooser_set_current_folder");
 340     gtk_file_filter_new = (Ptr_gtk_file_filter_new)libgtk.resolve("gtk_file_filter_new");
 341     gtk_file_filter_set_name = (Ptr_gtk_file_filter_set_name)libgtk.resolve("gtk_file_filter_set_name");
 342     gtk_file_filter_add_pattern = (Ptr_gtk_file_filter_add_pattern)libgtk.resolve("gtk_file_filter_add_pattern");
 343     gtk_file_chooser_add_filter = (Ptr_gtk_file_chooser_add_filter)libgtk.resolve("gtk_file_chooser_add_filter");
 344     gtk_file_chooser_set_filter = (Ptr_gtk_file_chooser_set_filter)libgtk.resolve("gtk_file_chooser_set_filter");
 345     gtk_file_chooser_get_filter = (Ptr_gtk_file_chooser_get_filter)libgtk.resolve("gtk_file_chooser_get_filter");
 346     gtk_file_chooser_dialog_new = (Ptr_gtk_file_chooser_dialog_new)libgtk.resolve("gtk_file_chooser_dialog_new");
 347     gtk_file_chooser_set_current_folder = (Ptr_gtk_file_chooser_set_current_folder)libgtk.resolve("gtk_file_chooser_set_current_folder");
 348     gtk_file_chooser_get_filename = (Ptr_gtk_file_chooser_get_filename)libgtk.resolve("gtk_file_chooser_get_filename");
 349     gtk_file_chooser_get_filenames = (Ptr_gtk_file_chooser_get_filenames)libgtk.resolve("gtk_file_chooser_get_filenames");
 350     gtk_file_chooser_set_current_name = (Ptr_gtk_file_chooser_set_current_name)libgtk.resolve("gtk_file_chooser_set_current_name");
 351     gtk_dialog_run = (Ptr_gtk_dialog_run)libgtk.resolve("gtk_dialog_run");
 352     gtk_file_chooser_set_filename = (Ptr_gtk_file_chooser_set_filename)libgtk.resolve("gtk_file_chooser_set_filename");
 353
 354     gdk_pixbuf_get_pixels = (Ptr_gdk_pixbuf_get_pixels)libgtk.resolve("gdk_pixbuf_get_pixels");
 355     gdk_pixbuf_get_width = (Ptr_gdk_pixbuf_get_width)libgtk.resolve("gdk_pixbuf_get_width");
 356     gdk_pixbuf_get_height = (Ptr_gdk_pixbuf_get_height)libgtk.resolve("gdk_pixbuf_get_height");
 357     gdk_pixmap_new = (Ptr_gdk_pixmap_new)libgtk.resolve("gdk_pixmap_new");
 358     gdk_pixbuf_new = (Ptr_gdk_pixbuf_new)libgtk.resolve("gdk_pixbuf_new");
 359     gdk_pixbuf_get_from_drawable = (Ptr_gdk_pixbuf_get_from_drawable)libgtk.resolve("gdk_pixbuf_get_from_drawable");
 360     gdk_draw_rectangle = (Ptr_gdk_draw_rectangle)libgtk.resolve("gdk_draw_rectangle");
 361     gdk_pixbuf_unref = (Ptr_gdk_pixbuf_unref)libgtk.resolve("gdk_pixbuf_unref");
 362     gdk_drawable_unref = (Ptr_gdk_drawable_unref)libgtk.resolve("gdk_drawable_unref");
 363     gdk_color_free = (Ptr_gdk_color_free)libgtk.resolve("gdk_color_free");
 364     gdk_x11_window_set_user_time = (Ptr_gdk_x11_window_set_user_time)libgtk.resolve("gdk_x11_window_set_user_time");
 365     gdk_x11_drawable_get_xid = (Ptr_gdk_x11_drawable_get_xid)libgtk.resolve("gdk_x11_drawable_get_xid");
 366     gdk_x11_drawable_get_xdisplay = (Ptr_gdk_x11_drawable_get_xdisplay)libgtk.resolve("gdk_x11_drawable_get_xdisplay");
 367
 368     gtk_widget_set_default_direction = (Ptr_gtk_widget_set_default_direction)libgtk.resolve("gtk_widget_set_default_direction");
 369     gtk_widget_modify_fg = (Ptr_gtk_widget_modify_color)libgtk.resolve("gtk_widget_modify_fg");
 370     gtk_widget_modify_bg = (Ptr_gtk_widget_modify_color)libgtk.resolve("gtk_widget_modify_bg");
 371     gtk_arrow_new = (Ptr_gtk_arrow_new)libgtk.resolve("gtk_arrow_new");
 372     gtk_menu_item_new_with_label = (Ptr_gtk_menu_item_new_with_label)libgtk.resolve("gtk_menu_item_new_with_label");
 373     gtk_check_menu_item_new_with_label = (Ptr_gtk_check_menu_item_new_with_label)libgtk.resolve("gtk_check_menu_item_new_with_label");
 374     gtk_menu_bar_new = (Ptr_gtk_menu_bar_new)libgtk.resolve("gtk_menu_bar_new");
 375     gtk_menu_new = (Ptr_gtk_menu_new)libgtk.resolve("gtk_menu_new");
 376     gtk_toolbar_new = (Ptr_gtk_toolbar_new)libgtk.resolve("gtk_toolbar_new");
 377     gtk_separator_tool_item_new = (Ptr_gtk_separator_tool_item_new)libgtk.resolve("gtk_separator_tool_item_new");
 378     gtk_toolbar_insert = (Ptr_gtk_toolbar_insert)libgtk.resolve("gtk_toolbar_insert");
 379     gtk_button_new = (Ptr_gtk_button_new)libgtk.resolve("gtk_button_new");
 380     gtk_tool_button_new = (Ptr_gtk_tool_button_new)libgtk.resolve("gtk_tool_button_new");
 381     gtk_hbutton_box_new = (Ptr_gtk_hbutton_box_new)libgtk.resolve("gtk_hbutton_box_new");
 382     gtk_check_button_new = (Ptr_gtk_check_button_new)libgtk.resolve("gtk_check_button_new");
 383     gtk_radio_button_new = (Ptr_gtk_radio_button_new)libgtk.resolve("gtk_radio_button_new");
 384     gtk_notebook_new = (Ptr_gtk_notebook_new)libgtk.resolve("gtk_notebook_new");
 385     gtk_progress_bar_new = (Ptr_gtk_progress_bar_new)libgtk.resolve("gtk_progress_bar_new");
 386     gtk_spin_button_new = (Ptr_gtk_spin_button_new)libgtk.resolve("gtk_spin_button_new");
 387     gtk_hscale_new = (Ptr_gtk_hscale_new)libgtk.resolve("gtk_hscale_new");
 388     gtk_vscale_new = (Ptr_gtk_vscale_new)libgtk.resolve("gtk_vscale_new");
 389     gtk_hscrollbar_new = (Ptr_gtk_hscrollbar_new)libgtk.resolve("gtk_hscrollbar_new");
 390     gtk_vscrollbar_new = (Ptr_gtk_vscrollbar_new)libgtk.resolve("gtk_vscrollbar_new");
 391     gtk_scrolled_window_new = (Ptr_gtk_scrolled_window_new)libgtk.resolve("gtk_scrolled_window_new");
 392     gtk_menu_shell_append = (Ptr_gtk_menu_shell_append)libgtk.resolve("gtk_menu_shell_append");
 393     gtk_entry_new = (Ptr_gtk_entry_new)libgtk.resolve("gtk_entry_new");
 394     gtk_tree_view_new = (Ptr_gtk_tree_view_new)libgtk.resolve("gtk_tree_view_new");
 395     gtk_combo_box_new = (Ptr_gtk_combo_box_new)libgtk.resolve("gtk_combo_box_new");
 396     gtk_progress_configure = (Ptr_gtk_progress_configure)libgtk.resolve("gtk_progress_configure");
 397     gtk_range_get_adjustment = (Ptr_gtk_range_get_adjustment)libgtk.resolve("gtk_range_get_adjustment");
 398     gtk_range_set_adjustment = (Ptr_gtk_range_set_adjustment)libgtk.resolve("gtk_range_set_adjustment");
 399     gtk_range_set_inverted = (Ptr_gtk_range_set_inverted)libgtk.resolve("gtk_range_set_inverted");
 400     gtk_container_add = (Ptr_gtk_container_add)libgtk.resolve("gtk_container_add");
 401     gtk_icon_factory_lookup_default = (Ptr_gtk_icon_factory_lookup_default)libgtk.resolve("gtk_icon_factory_lookup_default");
 402     gtk_icon_theme_get_default = (Ptr_gtk_icon_theme_get_default)libgtk.resolve("gtk_icon_theme_get_default");
 403     gtk_widget_style_get = (Ptr_gtk_widget_style_get)libgtk.resolve("gtk_widget_style_get");
 404     gtk_icon_set_render_icon = (Ptr_gtk_icon_set_render_icon)libgtk.resolve("gtk_icon_set_render_icon");
 405     gtk_fixed_new = (Ptr_gtk_fixed_new)libgtk.resolve("gtk_fixed_new");
 406     gtk_tree_view_column_new = (Ptr_gtk_tree_view_column_new)libgtk.resolve("gtk_tree_view_column_new");
 407     gtk_tree_view_append_column= (Ptr_gtk_tree_view_append_column )libgtk.resolve("gtk_tree_view_append_column");
 408     gtk_tree_view_get_column = (Ptr_gtk_tree_view_get_column )libgtk.resolve("gtk_tree_view_get_column");
 409     gtk_paint_check = (Ptr_gtk_paint_check)libgtk.resolve("gtk_paint_check");
 410     gtk_paint_box = (Ptr_gtk_paint_box)libgtk.resolve("gtk_paint_box");
 411     gtk_paint_flat_box = (Ptr_gtk_paint_flat_box)libgtk.resolve("gtk_paint_flat_box");
 412     gtk_paint_check = (Ptr_gtk_paint_check)libgtk.resolve("gtk_paint_check");
 413     gtk_paint_box = (Ptr_gtk_paint_box)libgtk.resolve("gtk_paint_box");
 414     gtk_paint_resize_grip = (Ptr_gtk_paint_resize_grip)libgtk.resolve("gtk_paint_resize_grip");
 415     gtk_paint_focus = (Ptr_gtk_paint_focus)libgtk.resolve("gtk_paint_focus");
 416     gtk_paint_shadow = (Ptr_gtk_paint_shadow)libgtk.resolve("gtk_paint_shadow");
 417     gtk_paint_slider = (Ptr_gtk_paint_slider)libgtk.resolve("gtk_paint_slider");
 418     gtk_paint_expander = (Ptr_gtk_paint_expander)libgtk.resolve("gtk_paint_expander");
 419     gtk_paint_handle = (Ptr_gtk_paint_handle)libgtk.resolve("gtk_paint_handle");
 420     gtk_paint_option = (Ptr_gtk_paint_option)libgtk.resolve("gtk_paint_option");
 421     gtk_paint_arrow = (Ptr_gtk_paint_arrow)libgtk.resolve("gtk_paint_arrow");
 422     gtk_paint_box_gap = (Ptr_gtk_paint_box_gap)libgtk.resolve("gtk_paint_box_gap");
 423     gtk_paint_extension = (Ptr_gtk_paint_extension)libgtk.resolve("gtk_paint_extension");
 424     gtk_paint_hline = (Ptr_gtk_paint_hline)libgtk.resolve("gtk_paint_hline");
 425     gtk_paint_vline = (Ptr_gtk_paint_vline)libgtk.resolve("gtk_paint_vline");
 426     gtk_adjustment_configure = (Ptr_gtk_adjustment_configure)libgtk.resolve("gtk_adjustment_configure");
 427     gtk_adjustment_new = (Ptr_gtk_adjustment_new)libgtk.resolve("gtk_adjustment_new");
 428     gtk_menu_item_set_submenu = (Ptr_gtk_menu_item_set_submenu)libgtk.resolve("gtk_menu_item_set_submenu");
 429     gtk_settings_get_default = (Ptr_gtk_settings_get_default)libgtk.resolve("gtk_settings_get_default");
 430     gtk_separator_menu_item_new = (Ptr_gtk_separator_menu_item_new)libgtk.resolve("gtk_separator_menu_item_new");
 431     gtk_frame_new = (Ptr_gtk_frame_new)libgtk.resolve("gtk_frame_new");
 432     gtk_expander_new = (Ptr_gtk_expander_new)libgtk.resolve("gtk_expander_new");
 433     gtk_statusbar_new = (Ptr_gtk_statusbar_new)libgtk.resolve("gtk_statusbar_new");
 434     gtk_combo_box_entry_new = (Ptr_gtk_combo_box_entry_new)libgtk.resolve("gtk_combo_box_entry_new");
 435     gtk_container_forall = (Ptr_gtk_container_forall)libgtk.resolve("gtk_container_forall");
 436     gtk_widget_size_allocate =(Ptr_gtk_widget_size_allocate)libgtk.resolve("gtk_widget_size_allocate");
 437     gtk_widget_size_request =(Ptr_gtk_widget_size_request)libgtk.resolve("gtk_widget_size_request");
 438     gtk_widget_set_direction =(Ptr_gtk_widget_set_direction)libgtk.resolve("gtk_widget_set_direction");
 439     gtk_widget_path =(Ptr_gtk_widget_path)libgtk.resolve("gtk_widget_path");
 440     gtk_container_get_type =(Ptr_gtk_container_get_type)libgtk.resolve("gtk_container_get_type");
 441     gtk_window_get_type =(Ptr_gtk_window_get_type)libgtk.resolve("gtk_window_get_type");
 442     gtk_widget_get_type =(Ptr_gtk_widget_get_type)libgtk.resolve("gtk_widget_get_type");
 443     gtk_widget_get_parent =(Ptr_gtk_widget_get_parent)libgtk.resolve("gtk_widget_get_parent");
 444     gtk_widget_is_toplevel =(Ptr_gtk_widget_is_toplevel)libgtk.resolve("gtk_widget_is_toplevel");
 445
 446     gtk_rc_get_style_by_paths =(Ptr_gtk_rc_get_style_by_paths)libgtk.resolve("gtk_rc_get_style_by_paths");
 447     gtk_check_version =(Ptr_gtk_check_version)libgtk.resolve("gtk_check_version");
 448     gtk_border_free =(Ptr_gtk_border_free)libgtk.resolve("gtk_border_free");
 449     gtk_widget_get_allocation = (Ptr_gtk_widget_get_allocation)libgtk.resolve("gtk_widget_get_allocation");
 450     gtk_widget_set_allocation = (Ptr_gtk_widget_set_allocation)libgtk.resolve("gtk_widget_set_allocation");
 451
 452     pango_font_description_get_size = (Ptr_pango_font_description_get_size)libgtk.resolve("pango_font_description_get_size");
 453     pango_font_description_get_weight = (Ptr_pango_font_description_get_weight)libgtk.resolve("pango_font_description_get_weight");
 454     pango_font_description_get_family = (Ptr_pango_font_description_get_family)libgtk.resolve("pango_font_description_get_family");
 455     pango_font_description_get_style = (Ptr_pango_font_description_get_style)libgtk.resolve("pango_font_description_get_style");
 456
 457     gnome_icon_lookup_sync = (Ptr_gnome_icon_lookup_sync)QLibrary::resolve(QLS("gnomeui-2"), 0, "gnome_icon_lookup_sync");
 458     gnome_vfs_init= (Ptr_gnome_vfs_init)QLibrary::resolve(QLS("gnomevfs-2"), 0, "gnome_vfs_init");
 459 }
 460
 461 /* \internal
 462  * Initializes a number of gtk menu widgets.
 463  * The widgets are cached.
 464  */
 465 void QGtkStylePrivate::initGtkMenu() const
 466 {
 467     // Create menubar
 468     GtkWidget *gtkMenuBar = QGtkStylePrivate::gtk_menu_bar_new();
 469     setupGtkWidget(gtkMenuBar);
 470
 471     GtkWidget *gtkMenuBarItem = QGtkStylePrivate::gtk_menu_item_new_with_label("X");
 472     gtk_menu_shell_append((GtkMenuShell*)(gtkMenuBar), gtkMenuBarItem);
 473     gtk_widget_realize(gtkMenuBarItem);
 474
 475     // Create menu
 476     GtkWidget *gtkMenu = QGtkStylePrivate::gtk_menu_new();
 477     gtk_menu_item_set_submenu((GtkMenuItem*)(gtkMenuBarItem), gtkMenu);
 478     gtk_widget_realize(gtkMenu);
 479
 480     GtkWidget *gtkMenuItem = QGtkStylePrivate::gtk_menu_item_new_with_label("X");
 481     gtk_menu_shell_append((GtkMenuShell*)gtkMenu, gtkMenuItem);
 482     gtk_widget_realize(gtkMenuItem);
 483
 484     GtkWidget *gtkCheckMenuItem = QGtkStylePrivate::gtk_check_menu_item_new_with_label("X");
 485     gtk_menu_shell_append((GtkMenuShell*)gtkMenu, gtkCheckMenuItem);
 486     gtk_widget_realize(gtkCheckMenuItem);
 487
 488     GtkWidget *gtkMenuSeparator = QGtkStylePrivate::gtk_separator_menu_item_new();
 489     gtk_menu_shell_append((GtkMenuShell*)gtkMenu, gtkMenuSeparator);
 490
 491     addAllSubWidgets(gtkMenuBar);
 492     addAllSubWidgets(gtkMenu);
 493 }
 494
 495
 496 void QGtkStylePrivate::initGtkTreeview() const
 497 {
 498     GtkWidget *gtkTreeView = gtk_tree_view_new();
 499     gtk_tree_view_append_column((GtkTreeView*)gtkTreeView, gtk_tree_view_column_new());
 500     gtk_tree_view_append_column((GtkTreeView*)gtkTreeView, gtk_tree_view_column_new());
 501     gtk_tree_view_append_column((GtkTreeView*)gtkTreeView, gtk_tree_view_column_new());
 502     addWidget(gtkTreeView);
 503 }
 504
 505
 506 /* \internal
 507  * Initializes a number of gtk widgets that we can later on use to determine some of our styles.
 508  * The widgets are cached.
 509  */
 510 void QGtkStylePrivate::initGtkWidgets() const
 511 {
 512     // From gtkmain.c
 513     uid_t ruid = getuid ();
 514     uid_t rgid = getgid ();
 515     uid_t euid = geteuid ();
 516     uid_t egid = getegid ();
 517     if (ruid != euid || rgid != egid) {
 518         qWarning("\nThis process is currently running setuid or setgid.\nGTK+ does not allow this "
 519                  "therefore Qt cannot use the GTK+ integration.\nTry launching your app using \'gksudo\', "
 520                  "\'kdesudo\' or a similar tool.\n\n"
 521                  "See http://www.gtk.org/setuid.html for more information.\n");
 522         return;
 523     }
 524
 525     static QString themeName;
 526     if (!gtkWidgetMap()->contains("GtkWindow") && themeName.isEmpty()) {
 527         themeName = getThemeName();
 528
 529         if (themeName == QLS("Qt") || themeName == QLS("Qt4")) {
 530             // Due to namespace conflicts with Qt3 and obvious recursion with Qt4,
 531             // we cannot support the GTK_Qt Gtk engine
 532             qWarning("QGtkStyle cannot be used together with the GTK_Qt engine.");
 533             return;
 534         }
 535     }
 536
 537     if (QGtkStylePrivate::gtk_init) {
 538         // Gtk will set the Qt error handler so we have to reset it afterwards
 539         x11ErrorHandler qt_x_errhandler = XSetErrorHandler(0);
 540         QGtkStylePrivate::gtk_init (NULL, NULL);
 541         XSetErrorHandler(qt_x_errhandler);
 542
 543         // make a window
 544         GtkWidget* gtkWindow = QGtkStylePrivate::gtk_window_new(GTK_WINDOW_POPUP);
 545         QGtkStylePrivate::gtk_widget_realize(gtkWindow);
 546         QHashableLatin1Literal widgetPath = QHashableLatin1Literal::fromData(strdup("GtkWindow"));
 547         removeWidgetFromMap(widgetPath);
 548         gtkWidgetMap()->insert(widgetPath, gtkWindow);
 549
 550
 551         // Make all other widgets. respect the text direction
 552         if (qApp->layoutDirection() == Qt::RightToLeft)
 553             QGtkStylePrivate::gtk_widget_set_default_direction(GTK_TEXT_DIR_RTL);
 554
 555         if (!gtkWidgetMap()->contains("GtkButton")) {
 556             GtkWidget *gtkButton = QGtkStylePrivate::gtk_button_new();
 557             addWidget(gtkButton);
 558             g_signal_connect(gtkButton, "style-set", G_CALLBACK(gtkStyleSetCallback), 0);
 559             addWidget(QGtkStylePrivate::gtk_tool_button_new(NULL, "Qt"));
 560             addWidget(QGtkStylePrivate::gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_NONE));
 561             addWidget(QGtkStylePrivate::gtk_hbutton_box_new());
 562             addWidget(QGtkStylePrivate::gtk_check_button_new());
 563             addWidget(QGtkStylePrivate::gtk_radio_button_new(NULL));
 564             addWidget(QGtkStylePrivate::gtk_combo_box_new());
 565             addWidget(QGtkStylePrivate::gtk_combo_box_entry_new());
 566             addWidget(QGtkStylePrivate::gtk_entry_new());
 567             addWidget(QGtkStylePrivate::gtk_frame_new(NULL));
 568             addWidget(QGtkStylePrivate::gtk_expander_new(""));
 569             addWidget(QGtkStylePrivate::gtk_statusbar_new());
 570             addWidget(QGtkStylePrivate::gtk_hscale_new((GtkAdjustment*)(QGtkStylePrivate::gtk_adjustment_new(1, 0, 1, 0, 0, 0))));
 571             addWidget(QGtkStylePrivate::gtk_hscrollbar_new(NULL));
 572             addWidget(QGtkStylePrivate::gtk_scrolled_window_new(NULL, NULL));
 573
 574             initGtkMenu();
 575             addWidget(QGtkStylePrivate::gtk_notebook_new());
 576             addWidget(QGtkStylePrivate::gtk_progress_bar_new());
 577             addWidget(QGtkStylePrivate::gtk_spin_button_new((GtkAdjustment*)
 578                                              (QGtkStylePrivate::gtk_adjustment_new(1, 0, 1, 0, 0, 0)), 0.1, 3));
 579             GtkWidget *toolbar = gtk_toolbar_new();
 580             g_signal_connect (toolbar, "notify::toolbar-style", G_CALLBACK (update_toolbar_style), toolbar);
 581             gtk_toolbar_insert((GtkToolbar*)toolbar, gtk_separator_tool_item_new(), -1);
 582             addWidget(toolbar);
 583             initGtkTreeview();
 584             addWidget(gtk_vscale_new((GtkAdjustment*)(QGtkStylePrivate::gtk_adjustment_new(1, 0, 1, 0, 0, 0))));
 585             addWidget(gtk_vscrollbar_new(NULL));
 586         }
 587         else // Rebuild map
 588         {
 589             // When styles change subwidgets can get rearranged
 590             // as with the combo box. We need to update the widget map
 591             // to reflect this;
 592             QHash<QHashableLatin1Literal, GtkWidget*> oldMap = *gtkWidgetMap();
 593             gtkWidgetMap()->clear();
 594             QHashIterator<QHashableLatin1Literal, GtkWidget*> it(oldMap);
 595             while (it.hasNext()) {
 596                 it.next();
 597                 if (!strchr(it.key().data(), '.')) {
 598                     addAllSubWidgets(it.value());
 599                 }
 600                 free(const_cast<char *>(it.key().data()));
 601             }
 602         }
 603     } else {
 604         qWarning("QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.");
 605     }
 606 }
 607
 608 /*! \internal
 609  * destroys all previously buffered widgets.
 610  */
 611 void QGtkStylePrivate::cleanupGtkWidgets()
 612 {
 613     if (!widgetMap)
 614         return;
 615     if (widgetMap->contains("GtkWindow")) // Gtk will destroy all children
 616         gtk_widget_destroy(widgetMap->value("GtkWindow"));
 617     for (QHash<QHashableLatin1Literal, GtkWidget *>::const_iterator it = widgetMap->constBegin();
 618          it != widgetMap->constEnd(); ++it)
 619         free(const_cast<char *>(it.key().data()));
 620 }
 621
 622 static bool resolveGConf()
 623 {
 624     if (!QGtkStylePrivate::gconf_client_get_default) {
 625         QGtkStylePrivate::gconf_client_get_default = (Ptr_gconf_client_get_default)QLibrary::resolve(QLS("gconf-2"), 4, "gconf_client_get_default");
 626         QGtkStylePrivate::gconf_client_get_string =  (Ptr_gconf_client_get_string)QLibrary::resolve(QLS("gconf-2"), 4, "gconf_client_get_string");
 627         QGtkStylePrivate::gconf_client_get_bool =  (Ptr_gconf_client_get_bool)QLibrary::resolve(QLS("gconf-2"), 4, "gconf_client_get_bool");
 628     }
 629     return (QGtkStylePrivate::gconf_client_get_default !=0);
 630 }
 631
 632 QString QGtkStylePrivate::getGConfString(const QString &value, const QString &fallback)
 633 {
 634     QString retVal = fallback;
 635     if (resolveGConf()) {
 636         g_type_init();
 637         GConfClient* client = gconf_client_get_default();
 638         GError *err = 0;
 639         char *str = gconf_client_get_string(client, qPrintable(value), &err);
 640         if (!err) {
 641             retVal = QString::fromUtf8(str);
 642             g_free(str);
 643         }
 644         g_object_unref(client);
 645         if (err)
 646             g_error_free (err);
 647     }
 648     return retVal;
 649 }
 650
 651 bool QGtkStylePrivate::getGConfBool(const QString &key, bool fallback)
 652 {
 653     bool retVal = fallback;
 654     if (resolveGConf()) {
 655         g_type_init();
 656         GConfClient* client = gconf_client_get_default();
 657         GError *err = 0;
 658         bool result = gconf_client_get_bool(client, qPrintable(key), &err);
 659         g_object_unref(client);
 660         if (!err)
 661             retVal = result;
 662         else
 663             g_error_free (err);
 664     }
 665     return retVal;
 666 }
 667
 668 QString QGtkStylePrivate::getThemeName()
 669 {
 670     QString themeName;
 671     // We try to parse the gtkrc file first
 672     // primarily to avoid resolving Gtk functions if
 673     // the KDE 3 "Qt" style is currently in use
 674     QString rcPaths = QString::fromLocal8Bit(qgetenv("GTK2_RC_FILES"));
 675     if (!rcPaths.isEmpty()) {
 676         QStringList paths = rcPaths.split(QLS(":"));
 677         foreach (const QString &rcPath, paths) {
 678             if (!rcPath.isEmpty()) {
 679                 QFile rcFile(rcPath);
 680                 if (rcFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
 681                     QTextStream in(&rcFile);
 682                     while(!in.atEnd()) {
 683                         QString line = in.readLine();
 684                         if (line.contains(QLS("gtk-theme-name"))) {
 685                             line = line.right(line.length() - line.indexOf(QLatin1Char('=')) - 1);
 686                             line.remove(QLatin1Char('\"'));
 687                             line = line.trimmed();
 688                             themeName = line;
 689                             break;
 690                         }
 691                     }
 692                 }
 693             }
 694             if (!themeName.isEmpty())
 695                 break;
 696         }
 697     }
 698
 699     // Fall back to gconf
 700     if (themeName.isEmpty() && resolveGConf())
 701         themeName = getGConfString(QLS("/desktop/gnome/interface/gtk_theme"));
 702
 703     return themeName;
 704 }
 705
 706 // Get size of the arrow controls in a GtkSpinButton
 707 int QGtkStylePrivate::getSpinboxArrowSize() const
 708 {
 709     const int MIN_ARROW_WIDTH = 6;
 710     GtkWidget *spinButton = gtkWidget("GtkSpinButton");
 711     GtkStyle *style = spinButton->style;
 712     gint size = pango_font_description_get_size (style->font_desc);
 713     gint arrow_size;
 714     arrow_size = qMax(PANGO_PIXELS (size), MIN_ARROW_WIDTH) + style->xthickness;
 715     arrow_size += arrow_size%2 + 1;
 716     return arrow_size;
 717 }
 718
 719
 720 bool QGtkStylePrivate::isKDE4Session()
 721 {
 722     static int version = -1;
 723     if (version == -1)
 724         version = qgetenv("KDE_SESSION_VERSION").toInt();
 725     return (version == 4);
 726 }
 727
 728 void QGtkStylePrivate::applyCustomPaletteHash()
 729 {
 730     QPalette menuPal = gtkWidgetPalette("GtkMenu");
 731     GdkColor gdkBg = gtkWidget("GtkMenu")->style->bg[GTK_STATE_NORMAL];
 732     QColor bgColor(gdkBg.red>>8, gdkBg.green>>8, gdkBg.blue>>8);
 733     menuPal.setBrush(QPalette::Base, bgColor);
 734     menuPal.setBrush(QPalette::Window, bgColor);
 735     qApp->setPalette(menuPal, "QMenu");
 736
 737     QPalette toolbarPal = gtkWidgetPalette("GtkToolbar");
 738     qApp->setPalette(toolbarPal, "QToolBar");
 739
 740     QPalette menuBarPal = gtkWidgetPalette("GtkMenuBar");
 741     qApp->setPalette(menuBarPal, "QMenuBar");
 742 }
 743
 744 /*! \internal
 745  *  Returns the gtk Widget that should be used to determine text foreground and background colors.
 746 */
 747 GtkWidget* QGtkStylePrivate::getTextColorWidget() const
 748 {
 749     return  gtkWidget("GtkEntry");
 750 }
 751
 752 void QGtkStylePrivate::setupGtkWidget(GtkWidget* widget)
 753 {
 754     if (Q_GTK_IS_WIDGET(widget)) {
 755         static GtkWidget* protoLayout = 0;
 756         if (!protoLayout) {
 757             protoLayout = QGtkStylePrivate::gtk_fixed_new();
 758             QGtkStylePrivate::gtk_container_add((GtkContainer*)(gtkWidgetMap()->value("GtkWindow")), protoLayout);
 759         }
 760         Q_ASSERT(protoLayout);
 761
 762         if (!QGtkStylePrivate::gtk_widget_get_parent(widget) && !QGtkStylePrivate::gtk_widget_is_toplevel(widget))
 763             QGtkStylePrivate::gtk_container_add((GtkContainer*)(protoLayout), widget);
 764         QGtkStylePrivate::gtk_widget_realize(widget);
 765     }
 766 }
 767
 768 void QGtkStylePrivate::removeWidgetFromMap(const QHashableLatin1Literal &path)
 769 {
 770     WidgetMap *map = gtkWidgetMap();
 771     WidgetMap::iterator it = map->find(path);
 772     if (it != map->end()) {
 773         free(const_cast<char *>(it.key().data()));
 774         map->erase(it);
 775     }
 776 }
 777
 778 void QGtkStylePrivate::addWidgetToMap(GtkWidget *widget)
 779 {
 780     if (Q_GTK_IS_WIDGET(widget)) {
 781         gtk_widget_realize(widget);
 782         QHashableLatin1Literal widgetPath = classPath(widget);
 783
 784         removeWidgetFromMap(widgetPath);
 785         gtkWidgetMap()->insert(widgetPath, widget);
 786 #ifdef DUMP_GTK_WIDGET_TREE
 787         qWarning("Inserted Gtk Widget: %s", widgetPath.data());
 788 #endif
 789     }
 790  }
 791
 792 void QGtkStylePrivate::addAllSubWidgets(GtkWidget *widget, gpointer v)
 793 {
 794     Q_UNUSED(v);
 795     addWidgetToMap(widget);
 796     if (GTK_CHECK_TYPE ((widget), gtk_container_get_type()))
 797         gtk_container_forall((GtkContainer*)widget, addAllSubWidgets, NULL);
 798 }
 799
 800 // Updates window/windowtext palette based on the indicated gtk widget
 801 QPalette QGtkStylePrivate::gtkWidgetPalette(const QHashableLatin1Literal &gtkWidgetName) const
 802 {
 803     GtkWidget *gtkWidget = QGtkStylePrivate::gtkWidget(gtkWidgetName);
 804     Q_ASSERT(gtkWidget);
 805     QPalette pal = QApplication::palette();
 806     GdkColor gdkBg = gtkWidget->style->bg[GTK_STATE_NORMAL];
 807     GdkColor gdkText = gtkWidget->style->fg[GTK_STATE_NORMAL];
 808     GdkColor gdkDisabledText = gtkWidget->style->fg[GTK_STATE_INSENSITIVE];
 809     QColor bgColor(gdkBg.red>>8, gdkBg.green>>8, gdkBg.blue>>8);
 810     QColor textColor(gdkText.red>>8, gdkText.green>>8, gdkText.blue>>8);
 811     QColor disabledTextColor(gdkDisabledText.red>>8, gdkDisabledText.green>>8, gdkDisabledText.blue>>8);
 812     pal.setBrush(QPalette::Window, bgColor);
 813     pal.setBrush(QPalette::Button, bgColor);
 814     pal.setBrush(QPalette::All, QPalette::WindowText, textColor);
 815     pal.setBrush(QPalette::Disabled, QPalette::WindowText, disabledTextColor);
 816     pal.setBrush(QPalette::All, QPalette::ButtonText, textColor);
 817     pal.setBrush(QPalette::Disabled, QPalette::ButtonText, disabledTextColor);
 818     return pal;
 819 }
 820
 821
 822 void QGtkStyleUpdateScheduler::updateTheme()
 823 {
 824     static QString oldTheme(QLS("qt_not_set"));
 825     QPixmapCache::clear();
 826
 827     QFont font = QGtkStylePrivate::getThemeFont();
 828     if (QApplication::font() != font)
 829         qApp->setFont(font);
 830
 831       if (oldTheme != QGtkStylePrivate::getThemeName()) {
 832           oldTheme = QGtkStylePrivate::getThemeName();
 833           QPalette newPalette = qApp->style()->standardPalette();
 834           QApplicationPrivate::setSystemPalette(newPalette);
 835           QApplication::setPalette(newPalette);
 836           if (!QGtkStylePrivate::instances.isEmpty()) {
 837               QGtkStylePrivate::instances.last()->initGtkWidgets();
 838               QGtkStylePrivate::instances.last()->applyCustomPaletteHash();
 839           }
 840           QList<QWidget*> widgets = QApplication::allWidgets();
 841           // Notify all widgets that size metrics might have changed
 842           foreach (QWidget *widget, widgets) {
 843               QEvent e(QEvent::StyleChange);
 844               QApplication::sendEvent(widget, &e);
 845           }
 846       }
 847     QIconLoader::instance()->updateSystemTheme();
 848 }
 849
 850 void QGtkStylePrivate::addWidget(GtkWidget *widget)
 851 {
 852     if (widget) {
 853         setupGtkWidget(widget);
 854         addAllSubWidgets(widget);
 855     }
 856 }
 857
 858
 859 // Fetch the application font from the pango font description
 860 // contained in the theme.
 861 QFont QGtkStylePrivate::getThemeFont()
 862 {
 863     QFont font;
 864     GtkStyle *style = gtkStyle();
 865     if (style && qApp->desktopSettingsAware())
 866     {
 867         PangoFontDescription *gtk_font = style->font_desc;
 868         font.setPointSizeF((float)(pango_font_description_get_size(gtk_font))/PANGO_SCALE);
 869
 870         QString family = QString::fromLatin1(pango_font_description_get_family(gtk_font));
 871         if (!family.isEmpty())
 872             font.setFamily(family);
 873
 874         int weight = pango_font_description_get_weight(gtk_font);
 875         if (weight >= PANGO_WEIGHT_HEAVY)
 876             font.setWeight(QFont::Black);
 877         else if (weight >= PANGO_WEIGHT_BOLD)
 878             font.setWeight(QFont::Bold);
 879         else if (weight >= PANGO_WEIGHT_SEMIBOLD)
 880             font.setWeight(QFont::DemiBold);
 881         else if (weight >= PANGO_WEIGHT_NORMAL)
 882             font.setWeight(QFont::Normal);
 883         else
 884             font.setWeight(QFont::Light);
 885
 886         PangoStyle fontstyle = pango_font_description_get_style(gtk_font);
 887         if (fontstyle == PANGO_STYLE_ITALIC)
 888             font.setStyle(QFont::StyleItalic);
 889         else if (fontstyle == PANGO_STYLE_OBLIQUE)
 890             font.setStyle(QFont::StyleOblique);
 891         else
 892             font.setStyle(QFont::StyleNormal);
 893     }
 894     return font;
 895 }
 896
 897
 898 // ----------- Native file dialogs -----------
 899
 900 // Extract filter list from expressions of type: foo (*.a *.b *.c)"
 901 QStringList QGtkStylePrivate::extract_filter(const QString &rawFilter)
 902 {
 903     QString result = rawFilter;
 904     QRegExp r(QString::fromLatin1("^([^()]*)\\(([a-zA-Z0-9_.*? +;#\\-\\[\\]@\\{\\}/!<>\\$%&=^~:\\|]*)\\)$"));
 905     int index = r.indexIn(result);
 906     if (index >= 0)
 907         result = r.cap(2);
 908     return result.split(QLatin1Char(' '));
 909 }
 910
 911 extern QStringList qt_make_filter_list(const QString &filter);
 912
 913 #ifndef QT_NO_FILEDIALOG
 914 void QGtkStylePrivate::setupGtkFileChooser(GtkWidget* gtkFileChooser, QWidget *parent,
 915                                 const QString &dir, const QString &filter, QString *selectedFilter,
 916                                 QFileDialog::Options options, bool isSaveDialog,
 917                                 QHash<GtkFileFilter *, QString> *filterMap)
 918 {
 919     g_object_set(gtkFileChooser, "do-overwrite-confirmation", gboolean(!(options & QFileDialog::DontConfirmOverwrite)), NULL);
 920     g_object_set(gtkFileChooser, "local_only", gboolean(true), NULL);
 921     if (!filter.isEmpty()) {
 922         QStringList filters = qt_make_filter_list(filter);
 923         foreach (const QString &rawfilter, filters) {
 924             GtkFileFilter *gtkFilter = QGtkStylePrivate::gtk_file_filter_new ();
 925             QString name = rawfilter.left(rawfilter.indexOf(QLatin1Char('(')));
 926             QStringList extensions = extract_filter(rawfilter);
 927             QGtkStylePrivate::gtk_file_filter_set_name(gtkFilter, qPrintable(name.isEmpty() ? extensions.join(QLS(", ")) : name));
 928
 929             foreach (const QString &fileExtension, extensions) {
 930                 // Note Gtk file dialogs are by default case sensitive
 931                 // and only supports basic glob syntax so we
 932                 // rewrite .xyz to .[xX][yY][zZ]
 933                 QString caseInsensitive;
 934                 for (int i = 0 ; i < fileExtension.length() ; ++i) {
 935                     QChar ch = fileExtension.at(i);
 936                     if (ch.isLetter()) {
 937                         caseInsensitive.append(
 938                                 QLatin1Char('[') +
 939                                 ch.toLower() +
 940                                 ch.toUpper() +
 941                                 QLatin1Char(']'));
 942                     } else {
 943                         caseInsensitive.append(ch);
 944                     }
 945                 }
 946                 QGtkStylePrivate::gtk_file_filter_add_pattern (gtkFilter, qPrintable(caseInsensitive));
 947
 948             }
 949             if (filterMap)
 950                 filterMap->insert(gtkFilter, rawfilter);
 951             QGtkStylePrivate::gtk_file_chooser_add_filter((GtkFileChooser*)gtkFileChooser, gtkFilter);
 952             if (selectedFilter && (rawfilter == *selectedFilter))
 953                 QGtkStylePrivate::gtk_file_chooser_set_filter((GtkFileChooser*)gtkFileChooser, gtkFilter);
 954         }
 955     }
 956
 957     // Using the currently active window is not entirely correct, however
 958     // it gives more sensible behavior for applications that do not provide a
 959     // parent
 960     QWidget *modalFor = parent ? parent->window() : qApp->activeWindow();
 961     if (modalFor) {
 962         QGtkStylePrivate::gtk_widget_realize(gtkFileChooser); // Creates X window
 963         XSetTransientForHint(QGtkStylePrivate::gdk_x11_drawable_get_xdisplay(gtkFileChooser->window),
 964                              QGtkStylePrivate::gdk_x11_drawable_get_xid(gtkFileChooser->window),
 965                              modalFor->winId());
 966 #ifdef Q_WS_X11
 967         QGtkStylePrivate::gdk_x11_window_set_user_time (gtkFileChooser->window, QX11Info::appUserTime());
 968 #endif
 969
 970     }
 971
 972     QFileInfo fileinfo(dir);
 973     if (dir.isEmpty())
 974         fileinfo.setFile(QDir::currentPath());
 975     fileinfo.makeAbsolute();
 976     if (fileinfo.isDir()) {
 977         QGtkStylePrivate::gtk_file_chooser_set_current_folder((GtkFileChooser*)gtkFileChooser, qPrintable(dir));
 978     } else if (isSaveDialog) {
 979         QGtkStylePrivate::gtk_file_chooser_set_current_folder((GtkFileChooser*)gtkFileChooser, qPrintable(fileinfo.absolutePath()));
 980         QGtkStylePrivate::gtk_file_chooser_set_current_name((GtkFileChooser*)gtkFileChooser, qPrintable(fileinfo.fileName()));
 981     } else {
 982         QGtkStylePrivate::gtk_file_chooser_set_filename((GtkFileChooser*)gtkFileChooser, qPrintable(dir));
 983     }
 984 }
 985
 986 QString QGtkStylePrivate::openFilename(QWidget *parent, const QString &caption, const QString &dir, const QString &filter,
 987                             QString *selectedFilter, QFileDialog::Options options)
 988 {
 989     QHash<GtkFileFilter *, QString> filterMap;
 990     GtkWidget *gtkFileChooser = QGtkStylePrivate::gtk_file_chooser_dialog_new (qPrintable(caption),
 991                                                              NULL,
 992                                                              GTK_FILE_CHOOSER_ACTION_OPEN,
 993                                                              GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 994                                                              GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 995                                                              NULL);
 996
 997     setupGtkFileChooser(gtkFileChooser, parent, dir, filter, selectedFilter, options, false, &filterMap);
 998
 999     QWidget modal_widget;
1000     modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true);
1001     modal_widget.setParent(parent, Qt::Window);
1002     modal_widget.createWinId();
1003     QGuiApplicationPrivate::showModalWindow(modal_widget.windowHandle());
1004
1005     QString filename;
1006     if (QGtkStylePrivate::gtk_dialog_run ((GtkDialog*)gtkFileChooser) == GTK_RESPONSE_ACCEPT) {
1007         char *gtk_filename = QGtkStylePrivate::gtk_file_chooser_get_filename ((GtkFileChooser*)gtkFileChooser);
1008         filename = QString::fromUtf8(gtk_filename);
1009         g_free (gtk_filename);
1010         if (selectedFilter) {
1011             GtkFileFilter *gtkFilter = QGtkStylePrivate::gtk_file_chooser_get_filter ((GtkFileChooser*)gtkFileChooser);
1012             *selectedFilter = filterMap.value(gtkFilter);
1013         }
1014     }
1015
1016     QApplicationPrivate::hideModalWindow(modal_widget.windowHandle());
1017     gtk_widget_destroy (gtkFileChooser);
1018     return filename;
1019 }
1020
1021
1022 QString QGtkStylePrivate::openDirectory(QWidget *parent, const QString &caption, const QString &dir, QFileDialog::Options options)
1023 {
1024     QHash<GtkFileFilter *, QString> filterMap;
1025     GtkWidget *gtkFileChooser = QGtkStylePrivate::gtk_file_chooser_dialog_new (qPrintable(caption),
1026                                                              NULL,
1027                                                              GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
1028                                                              GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
1029                                                              GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
1030                                                              NULL);
1031
1032     setupGtkFileChooser(gtkFileChooser, parent, dir, QString(), 0, options);
1033     QWidget modal_widget;
1034     modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true);
1035     modal_widget.setParent(parent, Qt::Window);
1036     modal_widget.createWinId();
1037     QGuiApplicationPrivate::showModalWindow(modal_widget.windowHandle());
1038
1039     QString filename;
1040     if (QGtkStylePrivate::gtk_dialog_run ((GtkDialog*)gtkFileChooser) == GTK_RESPONSE_ACCEPT) {
1041         char *gtk_filename = QGtkStylePrivate::gtk_file_chooser_get_filename ((GtkFileChooser*)gtkFileChooser);
1042         filename = QString::fromUtf8(gtk_filename);
1043         g_free (gtk_filename);
1044     }
1045
1046     QApplicationPrivate::hideModalWindow(modal_widget.windowHandle());
1047     gtk_widget_destroy (gtkFileChooser);
1048     return filename;
1049 }
1050
1051 QStringList QGtkStylePrivate::openFilenames(QWidget *parent, const QString &caption, const QString &dir, const QString &filter,
1052                                  QString *selectedFilter, QFileDialog::Options options)
1053 {
1054     QStringList filenames;
1055     QHash<GtkFileFilter *, QString> filterMap;
1056     GtkWidget *gtkFileChooser = QGtkStylePrivate::gtk_file_chooser_dialog_new (qPrintable(caption),
1057                                                              NULL,
1058                                                              GTK_FILE_CHOOSER_ACTION_OPEN,
1059                                                              GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
1060                                                              GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
1061                                                              NULL);
1062
1063     setupGtkFileChooser(gtkFileChooser, parent, dir, filter, selectedFilter, options, false, &filterMap);
1064     g_object_set(gtkFileChooser, "select-multiple", gboolean(true), NULL);
1065
1066     QWidget modal_widget;
1067     modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true);
1068     modal_widget.setParent(parent, Qt::Window);
1069     modal_widget.createWinId();
1070     QGuiApplicationPrivate::showModalWindow(modal_widget.windowHandle());
1071
1072     if (gtk_dialog_run ((GtkDialog*)gtkFileChooser) == GTK_RESPONSE_ACCEPT) {
1073         GSList *gtk_file_names = QGtkStylePrivate::gtk_file_chooser_get_filenames((GtkFileChooser*)gtkFileChooser);
1074         for (GSList *iterator  = gtk_file_names ; iterator; iterator = iterator->next)
1075             filenames << QString::fromUtf8((const char*)iterator->data);
1076         g_slist_free(gtk_file_names);
1077         if (selectedFilter) {
1078             GtkFileFilter *gtkFilter = QGtkStylePrivate::gtk_file_chooser_get_filter ((GtkFileChooser*)gtkFileChooser);
1079             *selectedFilter = filterMap.value(gtkFilter);
1080         }
1081     }
1082
1083     QApplicationPrivate::hideModalWindow(modal_widget.windowHandle());
1084     gtk_widget_destroy (gtkFileChooser);
1085     return filenames;
1086 }
1087
1088 QString QGtkStylePrivate::saveFilename(QWidget *parent, const QString &caption, const QString &dir, const QString &filter,
1089                            QString *selectedFilter, QFileDialog::Options options)
1090 {
1091     QHash<GtkFileFilter *, QString> filterMap;
1092     GtkWidget *gtkFileChooser = QGtkStylePrivate::gtk_file_chooser_dialog_new (qPrintable(caption),
1093                                                              NULL,
1094                                                              GTK_FILE_CHOOSER_ACTION_SAVE,
1095                                                              GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
1096                                                              GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
1097                                                              NULL);
1098     setupGtkFileChooser(gtkFileChooser, parent, dir, filter, selectedFilter, options, true, &filterMap);
1099
1100     QWidget modal_widget;
1101     modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true);
1102     modal_widget.setParent(parent, Qt::Window);
1103     modal_widget.createWinId();
1104     QGuiApplicationPrivate::showModalWindow(modal_widget.windowHandle());
1105
1106     QString filename;
1107     if (QGtkStylePrivate::gtk_dialog_run ((GtkDialog*)gtkFileChooser) == GTK_RESPONSE_ACCEPT) {
1108         char *gtk_filename = QGtkStylePrivate::gtk_file_chooser_get_filename ((GtkFileChooser*)gtkFileChooser);
1109         filename = QString::fromUtf8(gtk_filename);
1110         g_free (gtk_filename);
1111         if (selectedFilter) {
1112             GtkFileFilter *gtkFilter = QGtkStylePrivate::gtk_file_chooser_get_filter ((GtkFileChooser*)gtkFileChooser);
1113             *selectedFilter = filterMap.value(gtkFilter);
1114         }
1115     }
1116
1117     QApplicationPrivate::hideModalWindow(modal_widget.windowHandle());
1118     gtk_widget_destroy (gtkFileChooser);
1119     return filename;
1120 }
1121 #endif
1122
1123 QIcon QGtkStylePrivate::getFilesystemIcon(const QFileInfo &info)
1124 {
1125     QIcon icon;
1126     if (gnome_vfs_init && gnome_icon_lookup_sync) {
1127         gnome_vfs_init();
1128         GtkIconTheme *theme = gtk_icon_theme_get_default();
1129         QByteArray fileurl = QUrl::fromLocalFile(info.absoluteFilePath()).toEncoded();
1130         char * icon_name = gnome_icon_lookup_sync(theme,
1131                                                   NULL,
1132                                                   fileurl.data(),
1133                                                   NULL,
1134                                                   GNOME_ICON_LOOKUP_FLAGS_NONE,
1135                                                   NULL);
1136         QString iconName = QString::fromUtf8(icon_name);
1137         g_free(icon_name);
1138         if (iconName.startsWith(QLatin1Char('/')))
1139             return QIcon(iconName);
1140         return QIcon::fromTheme(iconName);
1141     }
1142     return icon;
1143 }
1144
1145 bool operator==(const QHashableLatin1Literal &l1, const QHashableLatin1Literal &l2)
1146 {
1147     return l1.size() == l2.size() || qstrcmp(l1.data(), l2.data()) == 0;
1148 }
1149
1150 // copied from qHash.cpp
1151 uint qHash(const QHashableLatin1Literal &key)
1152 {
1153     int n = key.size();
1154     const uchar *p = reinterpret_cast<const uchar *>(key.data());
1155     uint h = 0;
1156     uint g;
1157
1158     while (n--) {
1159         h = (h << 4) + *p++;
1160         if ((g = (h & 0xf0000000)) != 0)
1161             h ^= g >> 23;
1162         h &= ~g;
1163     }
1164     return h;
1165 }
1166
1167 QT_END_NAMESPACE
1168
1169 #endif // !defined(QT_NO_STYLE_GTK)