workaround for qt's dock jump bug

mainwindow.cpp

@@ -47,7 +47,9 @@ void MainWindow::setup_layout() {
     addDockWidget(Qt::TopDockWidgetArea, panel_project);
     addDockWidget(Qt::TopDockWidgetArea, panel_effect_controls);
     addDockWidget(Qt::TopDockWidgetArea, panel_viewer);
-    addDockWidget(Qt::BottomDockWidgetArea, panel_timeline);
+	addDockWidget(Qt::BottomDockWidgetArea, panel_timeline);
+
+	resizeDocks({panel_project}, {40}, Qt::Horizontal);
 }
 
 MainWindow::MainWindow(QWidget *parent) :
@@ -84,7 +86,6 @@ MainWindow::MainWindow(QWidget *parent) :
 	setWindowTitle("Olive (August 2018 | Alpha)");
     statusBar()->showMessage("Welcome to Olive");
 
-    ui->centralWidget->setMaximumSize(0, 0);
     setDockNestingEnabled(true);
 
     // TODO maybe replace these with non-pointers later on?
@@ -398,42 +399,42 @@ void MainWindow::on_actionDeselect_All_triggered()
     }
 }
 
-void MainWindow::on_actionGo_to_start_triggered()
-{
-    if (panel_timeline->focused() || panel_viewer->hasFocus()) {
-        panel_timeline->go_to_start();
-    }
-}
-
 void MainWindow::on_actionReset_to_default_layout_triggered()
 {
     setup_layout();
 }
 
+void MainWindow::on_actionGo_to_start_triggered()
+{
+	if (panel_timeline->focused() || panel_viewer->hasFocus() || panel_effect_controls->keyframe_focus()) {
+		panel_timeline->go_to_start();
+	}
+}
+
 void MainWindow::on_actionPrevious_Frame_triggered()
 {
-    if (panel_timeline->focused() || panel_viewer->hasFocus()) {
+	if (panel_timeline->focused() || panel_viewer->hasFocus() || panel_effect_controls->keyframe_focus()) {
         panel_timeline->previous_frame();
     }
 }
 
 void MainWindow::on_actionNext_Frame_triggered()
 {
-    if (panel_timeline->focused() || panel_viewer->hasFocus()) {
+	if (panel_timeline->focused() || panel_viewer->hasFocus() || panel_effect_controls->keyframe_focus()) {
         panel_timeline->next_frame();
     }
 }
 
 void MainWindow::on_actionGo_to_End_triggered()
 {
-    if (panel_timeline->focused() || panel_viewer->hasFocus()) {
+	if (panel_timeline->focused() || panel_viewer->hasFocus() || panel_effect_controls->keyframe_focus()) {
         panel_timeline->go_to_end();
     }
 }
 
 void MainWindow::on_actionPlay_Pause_triggered()
 {
-    if (panel_timeline->focused() || panel_viewer->hasFocus()) {
+	if (panel_timeline->focused() || panel_viewer->hasFocus() || panel_effect_controls->keyframe_focus()) {
         panel_timeline->toggle_play();
     }
 }

mainwindow.ui

@@ -17,7 +17,20 @@
    <iconset resource="icons/icons.qrc">
     <normaloff>:/icons/full-icon.png</normaloff>:/icons/full-icon.png</iconset>
   </property>
-  <widget class="QWidget" name="centralWidget"/>
+  <widget class="QWidget" name="centralWidget">
+   <property name="sizePolicy">
+    <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+     <horstretch>0</horstretch>
+     <verstretch>0</verstretch>
+    </sizepolicy>
+   </property>
+   <property name="maximumSize">
+    <size>
+     <width>0</width>
+     <height>0</height>
+    </size>
+   </property>
+  </widget>
   <widget class="QMenuBar" name="menuBar">
    <property name="geometry">
     <rect>

panels/timeline.cpp

@@ -148,13 +148,10 @@ void Timeline::reset_all_audio() {
 }
 
 void Timeline::seek(long p) {
-    pause();
-
+	pause();
 	playhead = p;
-
 	reset_all_audio();
-
-    repaint_timeline();
+	repaint_timeline();
 }
 
 void Timeline::toggle_play() {
@@ -268,7 +265,7 @@ bool Timeline::focused() {
 }
 
 void Timeline::repaint_timeline() {
-    if (playing) {
+	if (playing) {
         playhead = round(playhead_start + ((QDateTime::currentMSecsSinceEpoch()-start_msecs) * 0.001 * sequence->frame_rate));
 	}
 
@@ -282,7 +279,7 @@ void Timeline::repaint_timeline() {
         ui->audio_monitor->update();
 		last_frame = playhead;
 	}
-    panel_viewer->update_playhead_timecode(playhead);
+	panel_viewer->update_playhead_timecode(playhead);
 }
 
 void Timeline::redraw_all_clips(bool changed) {
@@ -296,7 +293,7 @@ void Timeline::redraw_all_clips(bool changed) {
     ui->audio_area->redraw_clips();
 	panel_effect_controls->update_keyframes();
 
-    panel_viewer->update_end_timecode();
+	panel_viewer->update_end_timecode();
 }
 
 void Timeline::select_all() {

panels/timeline.ui

@@ -10,6 +10,12 @@
     <height>592</height>
    </rect>
   </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
   <property name="windowTitle">
    <string>Timeline</string>
   </property>
@@ -258,7 +264,7 @@
     <item>
      <widget class="QWidget" name="timeline_area" native="true">
       <property name="sizePolicy">
-       <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+       <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
         <horstretch>1</horstretch>
         <verstretch>0</verstretch>
        </sizepolicy>
@@ -364,6 +370,12 @@
        </item>
        <item>
         <widget class="QSplitter" name="splitter">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
          <property name="orientation">
           <enum>Qt::Vertical</enum>
          </property>

ui/timelineheader.cpp

@@ -20,8 +20,7 @@ TimelineHeader::TimelineHeader(QWidget *parent) : QWidget(parent), dragging(fals
 void TimelineHeader::set_playhead(int mouse_x) {
 	long frame = getFrameFromScreenPoint(zoom, mouse_x);
 	if (snapping) panel_timeline->snap_to_clip(&frame, false);
-    panel_timeline->seek(frame);
-    panel_timeline->repaint_timeline();
+	panel_timeline->seek(frame);
 }
 
 void TimelineHeader::set_visible_in(long i) {

ui/timelinewidget.cpp

@@ -1565,7 +1565,7 @@ void TimelineWidget::redraw_clips() {
 			}
 		}
 		int panel_width = panel_timeline->getTimelineScreenPointFromFrame(end_frame) + 100;
-		int panel_height = 0;
+		int panel_height = 100;
 		if (bottom_align) {
 			for (int i=-1;i>=video_track_limit;i--) {
 				panel_height += panel_timeline->calculate_track_height(i, -1);
@@ -1577,7 +1577,7 @@ void TimelineWidget::redraw_clips() {
 		}
 
 		if (minimumWidth() != panel_width || clip_pixmap.height() != height() || panel_height != minimumHeight()) {
-			panel_timeline->ui->headers->setMinimumWidth(panel_width);
+			panel_timeline->ui->headers->setMinimumWidth(panel_width + 100);
 			setMinimumWidth(panel_width);
 			setMinimumHeight(panel_height);
 			clip_pixmap = QPixmap(qMax(width(), panel_width), qMax(height(), panel_height));