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GRAPHICS.H
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1992-03-09
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/* This is file graphics.h */
/*
** Copyright (C) 1991 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
**
** This file is distributed under the terms listed in the document
** "copying.dj", available from DJ Delorie at the address above.
** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained. This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
/* History:15,50 */
#ifndef _GRAPHICS_H_
#define _GRAPHICS_H_
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
GR_80_25_text,
GR_default_text,
GR_width_height_text,
GR_biggest_text,
GR_320_200_graphics,
GR_default_graphics,
GR_width_height_graphics,
GR_biggest_noninterlaced_graphics,
GR_biggest_graphics
} GR_graphics_modes;
#ifdef __cplusplus
void GrSetMode(int which, int width=0, int height=0);
#else
void GrSetMode();
#endif
void GrSetColor(int c, int r, int g, int b);
int GrAllocColor(int r, int g, int b); /* shared, read-only */
int GrAllocCell(void); /* unshared, read-write */
void GrQueryColor(int n, int *r, int *g, int *b);
void GrFreeColor(int c);
int GrWhite(void);
int GrBlack(void);
/* or a color with GrXOR to "xor" the color onto the screen */
#define GrXOR 0x100
/* GrNOCOLOR is used for "no" color */
#define GrNOCOLOR 0x100
void GrPlot(int x, int y, int c);
int GrPixel(int x, int y);
int GrMaxX(void);
int GrMaxY(void);
int GrSizeX(void);
int GrSizeY(void);
void GrLine(int x, int y, int x2, int y2, int c);
void GrTextXY(int x, int y, char *text, int fg, int bg);
#ifdef __cplusplus
}
typedef enum {
BlitSrc,
BlitDest,
BlitXor,
} GrBlitFunc;
class GrRegion;
GrRegion *GrScreenRegion();
void Blit(GrRegion *src,
GrRegion *dest, int dx, int dy,
GrBlitFunc function);
void Blit(GrRegion *src, int sx, int sy, int sw, int sh,
GrRegion *dest, int dx, int dy,
GrBlitFunc function);
class GrRegion {
public:
int flags;
int color;
GrRegion *parent;
int rel_x, rel_y, abs_x, abs_y;
int width;
int height;
int row_scale;
unsigned char *data; /* for read/write operations *EXCEPT* bcopy/memcpy */
unsigned char *rdata; /* for read via bcopy/memcpy */
unsigned char *wdata; /* for write via bcopy/memcpy */
GrRegion();
GrRegion(int width, int height); /* memory buffer */
~GrRegion();
GrRegion *SubRegion(int x, int y, int w, int h);
int MaxX();
int MaxY();
int SizeX();
int SizeY();
void Plot(int x, int y, int c=-1);
void Line(int x1, int y1, int x2, int y2, int c=-1);
void HLine(int x1, int x2, int y, int c=-1);
void VLine(int x, int y1, int y2, int c=-1);
void Rectangle(int x1, int y1, int x2, int y2, int c=-1); /* outline */
void Box(int x, int y, int w, int h, int c=-1); /* filled */
void Text(int x, int y, char *text, int fg=-1, int bg=-1);
int Point(int x, int y);
};
#endif
#endif