layernode.h

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//--- < LAYERNODE.H > -----------| ViewGraph - A Flexible Graph view Framework |
//
// Layer nodes provide layered display
// and quick turining on/off of layer
// display in a view.
// 
// $Author: botik32 $
// $Revision: 1.3 $
// $Date: 2004/05/14 18:35:08 $
//-----------------------------------------------------------------------------/

#ifndef LAYERNODE_H
#define LAYERNODE_H

#include <map>
#include <cZUI/groupnode.h>


class LayerNode : public GroupNode
{
protected:
        std::map<Camera*,bool> enabled;
public:
        LayerNode( bool cache_br = true );
        // LayerNode takes care of CameraOn/CameraOff 
        // messages in addition to GroupNode's handler.
        bool handle_event( Event * );
        bool is_enabled( Camera*c ){ 
                if( enabled.count(c) )
                        return enabled[c]; 
                return true;
        };
};

#endif

/// $Log: layernode.h,v $
/// Revision 1.3  2004/05/14 18:35:08  botik32
/// Fixed a bug related to HUDGroups and a few that I do not
/// remember now.
///
/// 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 10:50:23  botik32
/// Initial release
///
/// Revision 1.1.1.1  2004/03/26 08:53:33  botik
/// initial import
///
///
/// Revision 1.4  2003/11/08 18:54:59  botik
/// Changed handle_event to return bool
///
/// Revision 1.3  2003/10/30 14:49:50  botik
/// Changes to layernode to support state across
/// multiple cameras
///
/// Revision 1.2  2003/10/30 14:21:43  botik
/// Modified layernode to handle CameraOn/CameraOff events
///
/// Revision 1.1  2003/10/24 16:29:10  botik
/// Added more scene support: special scene nodes as well as a
/// camera class that acts as glue between the graph master and the
/// surface.
///

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