moved playback functions to viewer

ui/timelineheader.cpp

@@ -54,7 +54,7 @@ void TimelineHeader::set_playhead(int mouse_x) {
 	long frame = getHeaderFrameFromScreenPoint(mouse_x);
 	if (snapping) panel_timeline->snap_to_timeline(&frame, false, true, true);
 	if (frame != sequence->playhead) {
-		panel_timeline->seek(frame);
+		viewer->seek(frame);
 	}
 }
 

ui/timelineheader.h

@@ -4,6 +4,7 @@
 #include <QWidget>
 #include <QFontMetrics>
 class QScrollArea;
+class Viewer;
 
 class TimelineHeader : public QWidget
 {
@@ -13,6 +14,8 @@ public:
     void set_in_point(long p);
     void set_out_point(long p);
 
+	Viewer* viewer;
+
 	bool snapping;
 
 	void show_text(bool enable);

ui/timelinewidget.cpp

@@ -653,7 +653,7 @@ void TimelineWidget::mousePressEvent(QMouseEvent *event) {
 								sequence->selections.append(s);
 
 								if (config.select_also_seeks) {
-									panel_timeline->seek(clip->timeline_in);
+									panel_sequence_viewer->seek(clip->timeline_in);
 								}
 
 								// if alt is not down, select links
@@ -686,7 +686,7 @@ void TimelineWidget::mousePressEvent(QMouseEvent *event) {
 			}
 				break;
 			case TIMELINE_TOOL_EDIT:
-				if (config.edit_tool_also_seeks) panel_timeline->seek(panel_timeline->drag_frame_start);
+				if (config.edit_tool_also_seeks) panel_sequence_viewer->seek(panel_timeline->drag_frame_start);
 				panel_timeline->selecting = true;
 				break;
 			case TIMELINE_TOOL_RAZOR:
@@ -1341,7 +1341,7 @@ void TimelineWidget::mouseMoveEvent(QMouseEvent *event) {
             }
 
             if (config.edit_tool_also_seeks) {
-                panel_timeline->seek(qMin(panel_timeline->drag_frame_start, panel_timeline->cursor_frame));
+				panel_sequence_viewer->seek(qMin(panel_timeline->drag_frame_start, panel_timeline->cursor_frame));
             } else {
 				panel_timeline->repaint_timeline(false);
             }

ui/viewerwidget.cpp

@@ -453,7 +453,7 @@ void ViewerWidget::paintGL() {
 
 		// compose video preview
 		glClearColor(0, 0, 0, 0);
-		compose_sequence(NULL, (panel_timeline->playing || rendering));
+		compose_sequence(NULL, (panel_sequence_viewer->playing || rendering));
 
         if (texture_failed) {
 			if (rendering) {