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RegionGN.h
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C/C++ Source or Header
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1998-03-25
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3KB
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130 lines
// $Id: RegionGN.h,v 1.15 1998/03/25 12:44:07 zeller Exp $
// RegionGraphNode class: PosGraphNode with rectangular region
// centered around position
// Copyright (C) 1995 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// DDD is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
#ifndef _DDD_RegionGraphNode_h
#define _DDD_RegionGraphNode_h
#ifdef __GNUG__
#pragma interface
#endif
#include "PosGraphN.h"
#include "BoxRegion.h"
class RegionGraphNode: public PosGraphNode {
public:
DECLARE_TYPE_INFO
private:
BoxRegion _region; // The region occupied by this node
protected:
// Draw region
virtual void forceDraw(Widget w,
const BoxRegion& exposed,
const GraphGC& gc) const = 0;
// Center around position
void center();
// Copy Constructor
RegionGraphNode(const RegionGraphNode& node):
PosGraphNode(node),
_region(node._region)
{}
public:
// Constructor
RegionGraphNode(const BoxPoint& initialPos = BoxPoint(),
const BoxSize& initialSize = BoxSize()):
PosGraphNode(initialPos),
_region(initialPos, initialSize)
{
center();
}
// Destructor
virtual ~RegionGraphNode() {}
// Move
virtual void moveTo(const BoxPoint& newPos)
{
PosGraphNode::moveTo(newPos);
center();
}
// Size change handler: return true iff ok
static bool (*ResizeCB)(RegionGraphNode *node,
const BoxSize& newSize);
// Assign new size
virtual void resize(const BoxSize& newSize)
{
if (newSize != _region.space() && ResizeCB(this, newSize))
{
_region.space() = newSize;
center();
}
}
// Compute position for ORIGIN
virtual BoxPoint originToPos(const BoxPoint& origin, const GraphGC&) const;
// Draw
virtual void draw(Widget w,
const BoxRegion& exposed,
const GraphGC& gc) const;
// Print
virtual void _print(ostream& os, const GraphGC& gc) const;
// Attributes
// Region occupied by this node
virtual const BoxRegion& region(const GraphGC&) const
{
return _region;
}
// Region to be highlighted
virtual const BoxRegion& highlightRegion(const GraphGC& gc) const
{
return region(gc);
}
// Sensitive region
virtual const BoxRegion& sensitiveRegion(const GraphGC& gc) const
{
return region(gc);
}
};
#endif // _DDD_RegionGraphNode_h
// DON'T ADD ANYTHING BEHIND THIS #endif