class ZoomBar;
class SampleZoomPanel;
class AmpZoomPanel;
-class TrackZoomPanel;
+class ATrackZoomPanel;
+class VTrackZoomPanel;
class AutoZoom;
class AutoTypeMenu;
class ZoomTextBox;
class FromTextBox;
class LengthTextBox;
class ToTextBox;
-class TitleBarAlpha;
+class TitleAlphaBar;
+class TitleAlphaText;
#define ZOOMBAR_PIXELS 24