1 files changed, 139 insertions, 0 deletions
diff --git a/src/plugins/platformthemes/gtk3/qgtk3theme.cpp b/src/plugins/platformthemes/gtk3/qgtk3theme.cpp
new file mode 100644
index 0000000000..76afc441a4
--- /dev/null
+++ b/src/plugins/platformthemes/gtk3/qgtk3theme.cpp
@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgtk3theme.h"
+#include "qgtk3dialoghelpers.h"
+#include <QVariant>
+
+#undef signals
+#include <gtk/gtk.h>
+
+#include <X11/Xlib.h>
+
+QT_BEGIN_NAMESPACE
+
+const char *QGtk3Theme::name = "gtk3";
+
+static QString gtkSetting(const gchar *propertyName)
+{
+    GtkSettings *settings = gtk_settings_get_default();
+    gchararray value;
+    g_object_get(settings, propertyName, &value, NULL);
+    QString str = QString::fromUtf8(value);
+    g_free(value);
+    return str;
+}
+
+void gtkMessageHandler(const gchar *log_domain,
+                       GLogLevelFlags log_level,
+                       const gchar *message,
+                       gpointer unused_data) {
+    /* Silence false-positive Gtk warnings (we are using Xlib to set
+     * the WM_TRANSIENT_FOR hint).
+     */
+    if (g_strcmp0(message, "GtkDialog mapped without a transient parent. "
+                           "This is discouraged.") != 0) {
+        /* For other messages, call the default handler. */
+        g_log_default_handler(log_domain, log_level, message, unused_data);
+    }
+}
+
+QGtk3Theme::QGtk3Theme()
+{
+    // gtk_init will reset the Xlib error handler, and that causes
+    // Qt applications to quit on X errors. Therefore, we need to manually restore it.
+    int (*oldErrorHandler)(Display *, XErrorEvent *) = XSetErrorHandler(NULL);
+
+    gtk_init(0, 0);
+
+    XSetErrorHandler(oldErrorHandler);
+
+    /* Initialize some types here so that Gtk+ does not crash when reading
+     * the treemodel for GtkFontChooser.
+     */
+    g_type_ensure(PANGO_TYPE_FONT_FAMILY);
+    g_type_ensure(PANGO_TYPE_FONT_FACE);
+
+    /* Use our custom log handler. */
+    g_log_set_handler("Gtk", G_LOG_LEVEL_MESSAGE, gtkMessageHandler, NULL);
+}
+
+QVariant QGtk3Theme::themeHint(QPlatformTheme::ThemeHint hint) const
+{
+    switch (hint) {
+    case QPlatformTheme::SystemIconThemeName:
+        return QVariant(gtkSetting("gtk-icon-theme-name"));
+    case QPlatformTheme::SystemIconFallbackThemeName:
+        return QVariant(gtkSetting("gtk-fallback-icon-theme"));
+    default:
+        return QGnomeTheme::themeHint(hint);
+    }
+}
+
+QString QGtk3Theme::gtkFontName() const
+{
+    QString cfgFontName = gtkSetting("gtk-font-name");
+    if (!cfgFontName.isEmpty())
+        return cfgFontName;
+    return QGnomeTheme::gtkFontName();
+}
+
+bool QGtk3Theme::usePlatformNativeDialog(DialogType type) const
+{
+    switch (type) {
+    case ColorDialog:
+        return true;
+    case FileDialog:
+        return true;
+    case FontDialog:
+        return true;
+    default:
+        return false;
+    }
+}
+
+QPlatformDialogHelper *QGtk3Theme::createPlatformDialogHelper(DialogType type) const
+{
+    switch (type) {
+    case ColorDialog:
+        return new QGtk3ColorDialogHelper;
+    case FileDialog:
+        return new QGtk3FileDialogHelper;
+    case FontDialog:
+        return new QGtk3FontDialogHelper;
+    default:
+        return 0;
+    }
+}
+
+QT_END_NAMESPACE