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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgtk3theme.h"
#include "qgtk3dialoghelpers.h"
#include "qgtk3menu.h"
#include <QVariant>
#undef signals
#include <gtk/gtk.h>
#include <X11/Xlib.h>
QT_BEGIN_NAMESPACE
const char *QGtk3Theme::name = "gtk3";
template <typename T>
static T gtkSetting(const gchar *propertyName)
{
GtkSettings *settings = gtk_settings_get_default();
T value;
g_object_get(settings, propertyName, &value, NULL);
return value;
}
static QString gtkSetting(const gchar *propertyName)
{
gchararray value = gtkSetting<gchararray>(propertyName);
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::CursorFlashTime:
return QVariant(gtkSetting<gint>("gtk-cursor-blink-time"));
case QPlatformTheme::MouseDoubleClickDistance:
return QVariant(gtkSetting<gint>("gtk-double-click-distance"));
case QPlatformTheme::MouseDoubleClickInterval:
return QVariant(gtkSetting<gint>("gtk-double-click-time"));
case QPlatformTheme::MousePressAndHoldInterval:
return QVariant(gtkSetting<guint>("gtk-long-press-time"));
case QPlatformTheme::PasswordMaskDelay:
return QVariant(gtkSetting<guint>("gtk-entry-password-hint-timeout"));
case QPlatformTheme::StartDragDistance:
return QVariant(gtkSetting<gint>("gtk-dnd-drag-threshold"));
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;
}
}
QPlatformMenu* QGtk3Theme::createPlatformMenu() const
{
return new QGtk3Menu;
}
QPlatformMenuItem* QGtk3Theme::createPlatformMenuItem() const
{
return new QGtk3MenuItem;
}
QT_END_NAMESPACE
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