comparison base/ViewManager.cpp @ 10:ec6886f0e673

* Fix update and play limits for play-selection mode when not looping
* Fix playback in loop mode when no selection -- but the GUI update for
  this is still wrong on the flyback
* Various fixes and improvements to making selections, particularly during
  playback
* Draw selection under non-opaque non-scrollable layers, so as to improve
  cacheing
* Show selection limits as text when drawing selection
* Allow user to find missing audio files when loading session
* Cross-fade selections when in play-selection mode -- mostly.  We don't
  cross-fade on a processing block boundary, and unfortunately with short
  selections the selection boundary is quite likely to coincide with a block
  boundary.

     //!!! Likewise this needs to cope correctly with the situation
     //where selection is not one of the original selection set but
     //simply overlaps one of them (cutting down the original selection
     //appropriately)
 
-    m_selections.erase(selection);
-
-    emit selectionChanged();
+    if (m_selections.find(selection) != m_selections.end()) {
+	m_selections.erase(selection);
+	emit selectionChanged();
+    }
 }
 
 void
 ViewManager::clearSelections()
 {
-    m_selections.clear();
-
-    emit selectionChanged();
+    if (!m_selections.empty()) {
+	m_selections.clear();
+	emit selectionChanged();
+    }
 }
 
 Selection
 ViewManager::getContainingSelection(size_t frame, bool defaultToFollowing)
 {

 {
     while (!m_playParameters.empty()) {
 	delete m_playParameters.begin()->second;
 	m_playParameters.erase(m_playParameters.begin());
     }
+}
+
+void
+ViewManager::playStatusChanged(bool playing)
+{
+    checkPlayStatus();
 }
 
 void
 ViewManager::checkPlayStatus()
 {