WindowShadow: Strength can be set.

src/controls/DesktopMenu.qml

@@ -8,12 +8,13 @@ Meui.MenuPopupWindow {
 
     default property alias content : _mainLayout.data
 
-    Rectangle {
+    Meui.RoundedRect {
         id: _background
         anchors.fill: parent
-        opacity: 0.6
-        color: Meui.Theme.backgroundColor
-        radius: Meui.Theme.mediumRadius
+        // opacity: 0.6
+        // color: Meui.Theme.backgroundColor
+        // radius: Meui.Theme.mediumRadius
+        backgroundOpacity: 0.6
 
         Meui.WindowShadow {
             view: control

src/shadowhelper/windowshadow.cpp

@@ -132,6 +132,23 @@ void WindowShadow::setRadius(qreal value)
     }
 }
 
+qreal WindowShadow::strength() const
+{
+    return m_strength;
+}
+
+void WindowShadow::setStrength(qreal strength)
+{
+    if (m_strength != strength) {
+        m_strength = strength;
+
+        this->classBegin();
+        configureTiles();
+
+        emit strengthChanged();
+    }
+}
+
 void WindowShadow::onViewVisibleChanged(bool visible)
 {
     if (visible && m_view) {
@@ -181,7 +198,7 @@ TileSet WindowShadow::shadowTiles()
     };
 
     const QColor color = Qt::black;
-    const qreal strength = 1.5;
+    const qreal strength = m_strength;
 
     const QSize boxSize = BoxShadowRenderer::calculateMinimumBoxSize(params.shadow1.radius)
         .expandedTo(BoxShadowRenderer::calculateMinimumBoxSize(params.shadow2.radius));

src/shadowhelper/windowshadow.h

@@ -60,6 +60,7 @@ class WindowShadow : public QObject, public QQmlParserStatus
     Q_PROPERTY(QWindow *view READ view WRITE setView NOTIFY viewChanged)
     Q_PROPERTY(QRect geometry READ geometry WRITE setGeometry NOTIFY geometryChanged)
     Q_PROPERTY(qreal radius READ radius WRITE setRadius NOTIFY radiusChanged)
+    Q_PROPERTY(qreal strength READ strength WRITE setStrength NOTIFY strengthChanged)
 
 public:
     WindowShadow(QObject *parent = nullptr) noexcept;
@@ -79,6 +80,9 @@ public:
     void setRadius(qreal value);
     qreal radius() { return m_radius; }
 
+    qreal strength() const;
+    void setStrength(qreal strength);
+
 private slots:
     void onViewVisibleChanged(bool);
 
@@ -95,6 +99,7 @@ signals:
     void viewChanged();
     void edgesChanged();
     void radiusChanged();
+    void strengthChanged();
 
 private:
     QWindow *m_view;
@@ -103,6 +108,7 @@ private:
     QVector<KWindowShadowTile::Ptr> m_tile;
     TileSet m_shadowTiles;
     qreal m_radius = 10;
+    qreal m_strength = 1.3;
 };
 
 #endif