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Atari Mega Archive 1
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Atari Mega Archive - Volume 1.iso
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gemxx19.zoo
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gem++19
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include
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gemc.h
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C/C++ Source or Header
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1993-11-05
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1KB
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47 lines
/////////////////////////////////////////////////////////////////////////////
//
// GEMcanvas
//
// A GEMcanvas is a GEMscrollableobject scrolling over a virtual area.
//
// This file is Copyright 1993 by Warwick W. Allison,
// This file is part of the gem++ library.
// You are free to copy and modify these sources, provided you acknowledge
// the origin by retaining this notice, and adhere to the conditions
// described in the file COPYING.LIB.
//
/////////////////////////////////////////////////////////////////////////////
#ifndef GEMc_h
#define GEMc_h
#include <gemscro.h>
class GEMcanvas : public GEMscrollableobject {
public:
GEMcanvas(GEMform&, int RSCindex, int width, int height);
GEMcanvas(GEMform&, int RSCindex); // Unlimited (int) size.
virtual void Scroll(int pixels_right, int pixels_down);
void ScrollTo(int x, int y);
int CanvasWidth() { return w; }
int CanvasHeight() { return h; }
int CanvasX() { return x; }
int CanvasY() { return y; }
protected:
virtual void DrawAt(int x, int y, const GRect& area)=0;
private:
virtual void RedrawClipped(int x, int y, const GRect& area);
int x,y;
int w,h;
};
#endif