qtreechangeview.h #1

// QTreeChangeView: a QCanvasView holding the change and job bars.  It does
// not scroll, except to align itself horizontally with its parent
// QTreeWindow. 

class QTreeChangeView : public QCanvasView  
{
public:
	QTreeChangeView( QTreeCanvas* canvas, QTreeWindow* parent );
	virtual ~QTreeChangeView();

	// Reimplement WheelEvent to ignore the wheel. 
	void contentsWheelEvent( QWheelEvent* e );

	// Double-click events spawn info dialogs. 
	void contentsMouseDoubleClickEvent( QMouseEvent* e );

	// Press events begin dragging actions. 
	void contentsMousePressEvent( QMouseEvent* e );

	// This is important - makes sure the view is the right size. 
	void AdjustGeometry();

	// These two support QTreeWindow's ToggleJobs() function. 
	void HideJobs() { realheight = TREE_BARHEIGHT + 4; AdjustGeometry(); };
	void ShowJobs() { realheight = maxheight; AdjustGeometry(); };

private:
	// Set up the icon bar.
	void InitIcons();

	// Maxheight is the height including the job bar, if any.//
	// Height is the current height, which may or may not be //
	// equal to maxheight. 
	int maxheight;
	int realheight;

	// qtw == parent() 
	QTreeWindow* qtw;
	QTreeCanvas* qtcanvas;

	QLabel* changelabel;
	QLabel* joblabel;

	QTreeToolTip tips;
};