Fix right mouse click behavior on monitor when effect scene is displayed.

Fixes #1252

src/monitor/glwidget.cpp

@@ -739,7 +739,7 @@ bool GLWidget::checkFrameNumber(int pos, int offset, bool isPlaying)
 
 void GLWidget::mousePressEvent(QMouseEvent *event)
 {
-    if ((rootObject() != nullptr) && rootObject()->objectName() != QLatin1String("root") && !(event->modifiers() & Qt::ControlModifier) &&
+    if ((rootObject() != nullptr) && rootObject()->property("captureRightClick").toBool() && !(event->modifiers() & Qt::ControlModifier) &&
         !(event->buttons() & Qt::MiddleButton)) {
         event->ignore();
         QQuickView::mousePressEvent(event);

src/monitor/view/kdenliveclipmonitor.qml

@@ -23,6 +23,7 @@ Item {
     property double zoom
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     // Zoombar properties
     // The start position of the zoomed area, between 0 and 1
     property double zoomStart: 0

src/monitor/view/kdenlivemonitor.qml

@@ -21,6 +21,7 @@ Item {
     property double zoom
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     property bool dropped: false
     property string fps: '-'
     property bool showMarkers: false

src/monitor/view/kdenlivemonitorcornerscene.qml

@@ -21,6 +21,7 @@ Item {
     property point center
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     // Zoombar properties
     property double zoomStart: 0
     property double zoomFactor: 1

src/monitor/view/kdenlivemonitoreffectscene.qml

@@ -22,6 +22,7 @@ Item {
     property point center
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     // Zoombar properties
     property double zoomStart: 0
     property double zoomFactor: 1
@@ -196,7 +197,7 @@ Item {
         property bool isMoving : false
         anchors.centerIn: root
         hoverEnabled: true
-        acceptedButtons: Qt.LeftButton | Qt.RightButton
+        acceptedButtons: Qt.LeftButton
         cursorShape: containsMouse ? Qt.PointingHandCursor : Qt.ArrowCursor
         onWheel: {
             controller.seek(wheel.angleDelta.x + wheel.angleDelta.y, wheel.modifiers)
@@ -280,6 +281,7 @@ Item {
               property int oldMouseX
               property int oldMouseY
               property double handleRatio: 1
+              acceptedButtons: Qt.LeftButton
               width: parent.width; height: parent.height
               anchors.centerIn: parent
               hoverEnabled: true

src/monitor/view/kdenlivemonitorrotoscene.qml

@@ -23,6 +23,7 @@ Item {
     property color overlayColor: 'cyan'
     property double scalex : 1
     property double scaley : 1
+    property bool captureRightClick: true
     // Zoombar properties
     property double zoomStart: 0
     property double zoomFactor: 1

src/monitor/view/kdenlivemonitorsplit.qml

@@ -28,6 +28,7 @@ Item {
     property double offsety
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     // Zoombar properties
     property double zoomStart: 0
     property double zoomFactor: 1

src/monitor/view/kdenlivemonitorsplittracks.qml

@@ -22,6 +22,7 @@ Item {
     property point center
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     // Zoombar properties
     property double zoomStart: 0
     property double zoomFactor: 1

src/monitor/view/kdenlivemonitortrimming.qml

@@ -16,6 +16,7 @@ Item {
     property double zoom
     property double scalex
     property double scaley
+    property bool captureRightClick: false
     property bool dropped: false
     property string fps: '-'
     property bool showMarkers: false