Add proxy icon to clips in timeline

src/timeline2/model/timelineitemmodel.cpp

@@ -190,6 +190,7 @@ QHash<int, QByteArray> TimelineItemModel::roleNames() const
     QHash<int, QByteArray> roles;
     roles[NameRole] = "name";
     roles[ResourceRole] = "resource";
+    roles[IsProxyRole] = "isProxy";
     roles[ServiceRole] = "mlt_service";
     roles[BinIdRole] = "binId";
     roles[TrackIdRole] = "trackId";
@@ -269,6 +270,10 @@ QVariant TimelineItemModel::data(const QModelIndex &index, int role) const
             }
             return result;
         }
+        case IsProxyRole: {
+            QString proxy = clip->getProperty("kdenlive:proxy");
+            return proxy.size() > 2;
+        }
         case FakeTrackIdRole:
             return clip->getFakeTrackId();
         case FakePositionRole:

src/timeline2/model/timelinemodel.hpp

@@ -114,6 +114,7 @@ public:
     enum {
         NameRole = Qt::UserRole + 1,
         ResourceRole, /// clip only
+        IsProxyRole,  /// clip only
         ServiceRole,  /// clip only
         StartRole,    /// clip only
         BinIdRole,    /// clip only

src/timeline2/view/qml/Clip.qml

@@ -31,6 +31,7 @@ Rectangle {
     property string clipResource: ''
     property string mltService: ''
     property string effectNames
+    property bool isProxy: false
     property int modelStart
     property real scrollX: 0
     property int inPoint: 0
@@ -663,6 +664,33 @@ Rectangle {
                         styleColor: 'black'
                     }
                 }
+                
+               Rectangle{
+                    //proxy 
+                    id:proxyRect
+                    color: 'yellow'
+                    width: labelRect.height
+                    height: labelRect.height
+                    x: labelRect.x
+                    anchors.top: labelRect.top
+                    anchors.left: labelRect.right
+                    visible: clipRoot.isProxy && !clipRoot.isAudio
+                    Text {
+                        // Proxy P
+                        id: proxyLabel
+                        text: "P"
+                        font.pointSize: root.fontUnit +1
+                        visible: proxyRect.visible
+                        anchors {
+                            top: proxyRect.top
+                            left: proxyRect.left
+                            leftMargin: (labelRect.height-proxyLabel.width)/2
+                            topMargin: (labelRect.height-proxyLabel.height)/2
+                        }
+                        color: 'black'
+                        styleColor: 'black'
+                    }
+                }
             }
 
             KeyframeView {

src/timeline2/view/qml/Track.qml

@@ -188,6 +188,12 @@ Item{
                     value: model.resource
                     when: loader.status == Loader.Ready && isClip(model.clipType)
                 }
+                Binding {
+                    target: loader.item
+                    property: "isProxy"
+                    value: model.isProxy
+                    when: loader.status == Loader.Ready && isClip(model.clipType)
+                }
                 Binding {
                     target: loader.item
                     property: "maxDuration"