comparison view/ViewManager.cpp @ 271:1a49bd0d8375

* Change a number of keyboard shortcuts -- get rid of all the Alt+ shortcuts
  and introduce a few more Ctrl+ ones instead, as well as a number of plain
  single keypresses
* Add Playback menu
* Add time-ruler support for snap to feature, use it in ffwd/rewind
  (rewind still needs fixing)
* restore layer hierarchy window prior to making it work correctly

     if (m_selections.getSelections() == ms.getSelections()) return;
     SetSelectionCommand *command = new SetSelectionCommand(this, ms);
     CommandHistory::getInstance()->addCommand(command);
 }
 
+size_t
+ViewManager::constrainFrameToSelection(size_t frame) const
+{
+    MultiSelection::SelectionList sl = getSelections();
+    if (sl.empty()) return frame;
+
+    size_t selectionStartFrame = sl.begin()->getStartFrame();
+    if (frame < selectionStartFrame) {
+        frame = selectionStartFrame;
+        return frame;
+    }
+
+    MultiSelection::SelectionList::iterator i = sl.end();
+    --i;
+    size_t selectionEndFrame = i->getEndFrame();
+    if (frame > selectionEndFrame) frame = selectionEndFrame;
+
+    return frame;
+}
+
 void
 ViewManager::signalSelectionChange()
 {
     emit selectionChanged();
 }