1 files changed, 35 insertions, 1 deletions
diff --git a/src/gui/kernel/qplatformtheme.cpp b/src/gui/kernel/qplatformtheme.cpp
index 9f5c789a6e..b8bc72cf73 100644
--- a/src/gui/kernel/qplatformtheme.cpp
+++ b/src/gui/kernel/qplatformtheme.cpp
@@ -41,6 +41,8 @@
 
 #include "qplatformtheme.h"
 
+#include "qplatformtheme_p.h"
+
 #include <QtCore/QVariant>
 #include <QtCore/QStringList>
 #include <QtCore/qfileinfo.h>
@@ -137,6 +139,33 @@ QT_BEGIN_NAMESPACE
     \sa themeHint(), QStyle::pixelMetric()
 */
 
+QPlatformThemePrivate::QPlatformThemePrivate()
+        : systemPalette(0)
+{ }
+
+QPlatformThemePrivate::~QPlatformThemePrivate()
+{
+    delete systemPalette;
+}
+
+Q_GUI_EXPORT QPalette qt_fusionPalette();
+
+void QPlatformThemePrivate::initializeSystemPalette()
+{
+    Q_ASSERT(!systemPalette);
+    systemPalette = new QPalette(qt_fusionPalette());
+}
+
+QPlatformTheme::QPlatformTheme()
+    : d_ptr(new QPlatformThemePrivate)
+{
+
+}
+
+QPlatformTheme::QPlatformTheme(QPlatformThemePrivate *priv)
+    : d_ptr(priv)
+{ }
+
 QPlatformTheme::~QPlatformTheme()
 {
 
@@ -156,7 +185,12 @@ QPlatformDialogHelper *QPlatformTheme::createPlatformDialogHelper(DialogType typ
 
 const QPalette *QPlatformTheme::palette(Palette type) const
 {
-    Q_UNUSED(type)
+    Q_D(const QPlatformTheme);
+    if (type == QPlatformTheme::SystemPalette) {
+        if (!d->systemPalette)
+            const_cast<QPlatformTheme *>(this)->d_ptr->initializeSystemPalette();
+        return d->systemPalette;
+    }
     return 0;
 }