comparison view/PaneStack.cpp @ 277:8acd30ed735c

* Fix up and simplify the LayerTreeModel, removing a horrible memory leak
* Move phase-unwrapped frequency estimation from SpectrogramLayer to
  FFTDataServer
* Make the spectrum show peak phase-unwrapped frequencies as well (still
  needs work)
* Start adding piano keyboard horizontal scale to spectrum
* Debug output for id3 tags

 }
 
 Pane *
 PaneStack::getPane(int n)
 {
-    return m_panes[n].pane;
+    if (n < m_panes.size()) {
+        return m_panes[n].pane;
+    } else {
+        return 0;
+    }
+}
+
+int
+PaneStack::getPaneIndex(Pane *pane)
+{
+    for (int i = 0; i < getPaneCount(); ++i) {
+        if (pane == getPane(i)) {
+            return i;
+        }
+    }
+    return -1;
 }
 
 Pane *
 PaneStack::getHiddenPane(int n)
 {