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INTERVIE
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CANVAS.H
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C/C++ Source or Header
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1991-12-22
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/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* A canvas is an area of graphics output.
*/
#ifndef canvas_h
#define canvas_h
#include <InterViews\defs.h>
#include <InterViews\X11\canvrep.h>
class Color;
enum CanvasStatus {
CanvasMapped, CanvasUnmapped, CanvasOffscreen
};
class Canvas {
public:
Canvas(int w, int h);
Canvas(void*);
~Canvas();
void* Id();
int Width();
int Height();
CanvasStatus Status();
void SetBackground(Color*);
void* GetBackground();
void Clip(Coord, Coord, Coord, Coord);
void NoClip();
void ClipOn();
void ClipOff();
boolean IsClipped();
void Map(Coord&, Coord&);
private:
friend class Interactor;
friend class IARep;
friend class Scene;
friend class World;
friend class WorldView;
friend class Painter;
void* id;
CanvasStatus status;
int width, height;
class CanvasRep* rep;
void WaitForCopy();
};
inline void* Canvas::Id () { return id; }
inline int Canvas::Width () { return width; }
inline int Canvas::Height () { return height; }
inline CanvasStatus Canvas::Status () { return status; }
#endif