Make Snowshoe popup translucents.

You need to set a specific surface format to get translucent background
on a QWindow. Unfortunately due to a bug even the main window should also
be setup as transparent for the popup to work correctly.

Reviewed-by: Rafael Brandao

2 files changed, 10 insertions, 0 deletions

diff --git a/src/core/PopupWindow.cpp b/src/core/PopupWindow.cpp
index 221355f..e440fe4 100644
--- a/src/core/PopupWindow.cpp
+++ b/src/core/PopupWindow.cpp
@@ -22,6 +22,11 @@ PopupWindow::PopupWindow(QWindow* parent)
     : QQuickCanvas(parent)
 {
     setWindowFlags(Qt::Popup);
+    QSurfaceFormat surfaceFormat;
+    surfaceFormat.setAlphaBufferSize(8);
+    setFormat(surfaceFormat);
+    setClearBeforeRendering(true);
+    setClearColor(QColor(Qt::transparent));
 }
 
 void PopupWindow::showEvent(QShowEvent* ev)
diff --git a/src/desktop/BrowserWindow.cpp b/src/desktop/BrowserWindow.cpp
index 00f915e..710adfa 100644
--- a/src/desktop/BrowserWindow.cpp
+++ b/src/desktop/BrowserWindow.cpp
@@ -38,6 +38,11 @@ BrowserWindow::BrowserWindow(const QStringList& arguments)
     , m_browserView(0)
 {
     setWindowFlags(Qt::Window | Qt::WindowSystemMenuHint | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint);
+    QSurfaceFormat surfaceFormat;
+    surfaceFormat.setAlphaBufferSize(8);
+    setFormat(surfaceFormat);
+    setClearBeforeRendering(true);
+    setClearColor(QColor(Qt::transparent));
     qmlRegisterType<Shortcut>("Snowshoe", 1, 0, "Shortcut");
     restoreWindowGeometry();
     setupDeclarativeEnvironment();