activeleaf.h

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//--- < ACTIVELEAF.H > ----------| ViewGraph - A Flexible Graph view Framework |
//
// Active leaves respond to mouseOn/mouseOff
// events by repainting and changing cursor 
// shape. They can repaint for selected/unselected
// state, however, they do not keep selection
// state (that would be a waste of memory). You
// must use a SelectionGroup for that.
// 
// $Author: botik32 $
// $Revision: 1.2 $
// $Date: 2004/05/03 21:02:01 $
//-----------------------------------------------------------------------------/

#ifndef ACTIVELEAF_H
#define ACTIVELEAF_H

#include <cZUI/leafnode.h>
#include <cZUI/drivers/surfacedriver.h>

class ActiveLeaf;
class MouseDownEvent;
class MouseUpEvent;

typedef void (ActiveLeaf::*paintfunc)( Camera * );

// A leaf with predefined roles of a hover/normal 
// or normal/selected "widget".
class ActiveLeaf : public LeafNode
{
protected:
        virtual void paint( Camera * )=0;
        virtual void paint_hover( Camera *c ){ paint(c); };
        virtual void paint_selected( Camera *c ){ paint(c); };
        virtual void paint_selected_inactive( Camera *c )
        { paint(c); };
        virtual paintfunc get_paintfunc( Camera * );
public:
        virtual void mouse_down( MouseDownEvent * );
        virtual void mouse_up( MouseUpEvent * );
        bool handle_event( Event * );
        bool handle_message( Message * );
        ActiveLeaf( double, double );   
};

#endif

/// $Log: activeleaf.h,v $
/// Revision 1.2  2004/05/03 21:02:01  botik32
/// Significant changes and many bugfixes.
/// ScrollableView now has a background color used to
/// tell SurfaceDriver to clear with.
/// SurfaceDriver's clear() requires a color now
/// Added SceneEvents for all node additions/removals
/// in GroupNode and Camera.
/// Added paint_selected and paint_selected_invalid
/// to ActiveLeaf
/// Modified ActiveLeaf's mouse_down and mouse_up
/// handler signatures to accept an Event* instead of
/// Camera*
/// - Many more bugfixes
///
/// Revision 1.1.1.1  2004/03/26 10:50:26  botik32
/// Initial release
///
/// Revision 1.1.1.1  2004/03/26 08:53:33  botik
/// initial import
///
///
/// Revision 1.2  2003/12/04 15:02:20  botik
/// Changed activeleaf to have mouse_down and mouse_up
/// functions as public
///
/// Revision 1.1  2003/11/16 10:04:39  botik
/// added active leaf nodes that simplify library usage
///

---