comparison view/Pane.h @ 133:9e6b3e239b9d

* Add zoom thumbwheels to Pane.  Implement horizontal thumbwheel, and
  vertical depending on layer type (supported for waveform and spectrogram,
  though wrong for log-scale spectrogram at the moment).
* Add bare bones of a spectrum layer.
* Add window icon
* Add shortcut for "insert time instant" on laptops without keypad enter (";")
* Delete FFT processing thread when it exits (at least, next time we're asked
  for something interesting)
* Get audio file extensions from the file readers, and thus from libsndfile for
  the wave file reader -- leads to rather a wide combo box in file dialog though
* Better refresh order for spectrogram (redraw centre section first)

 #include "base/Selection.h"
 
 class QWidget;
 class QPaintEvent;
 class Layer;
+class Thumbwheel;
 
 class Pane : public View
 {
     Q_OBJECT
 

     void paneInteractedWith();
     void rightButtonMenuRequested(QPoint position);
 
 public slots:
     virtual void toolModeChanged();
+    virtual void zoomWheelsEnabledChanged();
+    virtual void zoomLevelChanged();
 
     virtual void horizontalThumbwheelMoved(int value);
     virtual void verticalThumbwheelMoved(int value);
+    virtual void verticalZoomChanged();
+
+    virtual void propertyContainerSelected(View *, PropertyContainer *pc);
 
 protected:
     virtual void paintEvent(QPaintEvent *e);
     virtual void mousePressEvent(QMouseEvent *e);
     virtual void mouseReleaseEvent(QMouseEvent *e);
     virtual void mouseMoveEvent(QMouseEvent *e);
     virtual void mouseDoubleClickEvent(QMouseEvent *e);
     virtual void leaveEvent(QEvent *e);
     virtual void wheelEvent(QWheelEvent *e);
+    virtual void resizeEvent(QResizeEvent *e);
 
     Selection getSelectionAt(int x, bool &closeToLeft, bool &closeToRight) const;
 
     bool editSelectionStart(QMouseEvent *e);
     bool editSelectionDrag(QMouseEvent *e);
     bool editSelectionEnd(QMouseEvent *e);
     bool selectionIsBeingEdited() const;
+
+    void updateHeadsUpDisplay();
 
     bool m_identifyFeatures;
     QPoint m_identifyPoint;
     QPoint m_clickPos;
     QPoint m_mousePos;

     size_t m_dragCentreFrame;
     bool m_centreLineVisible;
     size_t m_selectionStartFrame;
     Selection m_editingSelection;
     int m_editingSelectionEdge;
+
+    QWidget *m_headsUpDisplay;
+    Thumbwheel *m_hthumb;
+    Thumbwheel *m_vthumb;
 };
 
 #endif