1 files changed, 135 insertions, 0 deletions
diff --git a/src/qt6gtk2-qtplugin/qt6gtk2theme.cpp b/src/qt6gtk2-qtplugin/qt6gtk2theme.cpp
new file mode 100644
index 0000000..9fbee53
--- /dev/null
+++ b/src/qt6gtk2-qtplugin/qt6gtk2theme.cpp
@@ -0,0 +1,135 @@
+/***************************************************************************
+ *   Copyright (C) 2015 The Qt Company Ltd.                                *
+ *   Copyright (C) 2016-2024 Ilya Kotov, forkotov02@ya.ru                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
+ ***************************************************************************/
+
+#include "qt6gtk2theme.h"
+#include "qt6gtk2dialoghelpers.h"
+#include <QVariant>
+
+#undef signals
+#include <gtk/gtk.h>
+
+#include <X11/Xlib.h>
+
+QT_BEGIN_NAMESPACE
+
+static QVariant gtkSetting(const gchar *propertyName)
+{
+    GtkSettings *settings = gtk_settings_get_default();
+    GValue value = G_VALUE_INIT;
+    QVariant ret;
+
+    g_object_get_property(G_OBJECT(settings), propertyName, &value);
+    if (G_VALUE_HOLDS_INT(&value)) {
+        ret = QVariant(g_value_get_int(&value));
+    } else if (G_VALUE_HOLDS_UINT(&value)) {
+        ret = QVariant(g_value_get_uint(&value));
+    } else if (G_VALUE_HOLDS_FLOAT(&value)) {
+        ret = QVariant(g_value_get_float(&value));
+    } else if (G_VALUE_HOLDS_STRING(&value)) {
+        ret = QVariant(QString::fromUtf8(g_value_get_string(&value)));
+    } else if (G_VALUE_HOLDS_BOOLEAN(&value)) {
+        ret = QVariant(g_value_get_boolean(&value));
+    } else {
+        ret = QVariant();
+    }
+    g_value_unset(&value);
+    return ret;
+}
+
+Qt6Gtk2Theme::Qt6Gtk2Theme()
+{
+    // 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(nullptr);
+
+    gtk_init(nullptr, nullptr);
+
+    XSetErrorHandler(oldErrorHandler);
+}
+
+QVariant Qt6Gtk2Theme::themeHint(QPlatformTheme::ThemeHint hint) const
+{
+    switch (hint) {
+    case QPlatformTheme::CursorFlashTime:
+        // As close to GTK as possible.
+        if (gtkSetting("gtk-cursor-blink").toBool() && gtkSetting("gtk-cursor-blink-timeout").toInt() != 0) {
+            return gtkSetting("gtk-cursor-blink-time");
+        } else {
+            return QVariant((int) 0);
+        }
+    case QPlatformTheme::PasswordMaskDelay:
+        return gtkSetting("gtk-entry-password-hint-timeout");
+    case QPlatformTheme::DialogButtonBoxButtonsHaveIcons:
+        return gtkSetting("gtk-button-images");
+    case QPlatformTheme::ShowShortcutsInContextMenus:
+        return gtkSetting("gtk-enable-accels");
+    case QPlatformTheme::SystemIconThemeName:
+        return gtkSetting("gtk-icon-theme-name");
+    case QPlatformTheme::SystemIconFallbackThemeName:
+        return gtkSetting("gtk-fallback-icon-theme");
+    case QPlatformTheme::StyleNames:
+    {
+        QStringList styleNames;
+        styleNames << "qt6gtk2";
+        //styleNames << QGnomeTheme::themeHint(hint).toStringList();
+        return styleNames;
+    }
+    default:
+        return QGnomeTheme::themeHint(hint);
+    }
+}
+
+QString Qt6Gtk2Theme::gtkFontName() const
+{
+    QString cfgFontName = gtkSetting("gtk-font-name").toString();
+    if (!cfgFontName.isEmpty())
+        return cfgFontName;
+    return QGnomeTheme::gtkFontName();
+}
+
+bool Qt6Gtk2Theme::usePlatformNativeDialog(DialogType type) const
+{
+    switch (type) {
+    case ColorDialog:
+        return true;
+    case FileDialog:
+        return true;
+    case FontDialog:
+        return true;
+    default:
+        return false;
+    }
+}
+
+QPlatformDialogHelper *Qt6Gtk2Theme::createPlatformDialogHelper(DialogType type) const
+{
+    switch (type) {
+    case ColorDialog:
+        return new Qt6Gtk2ColorDialogHelper;
+    case FileDialog:
+        return new Qt6Gtk2FileDialogHelper;
+    case FontDialog:
+        return new Qt6Gtk2FontDialogHelper;
+    default:
+        return nullptr;
+    }
+}
+
+QT_END_NAMESPACE