/* *	HT Editor *	display.h * *	Copyright (C) 1999-2004 Stefan Weyergraf (stefan@weyergraf.de) * *	This program is free software; you can redistribute it and/or modify *	it under the terms of the GNU General Public License version 2 as *	published by the Free Software Foundation. * *	This program 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 this program; if not, write to the Free Software *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */#ifndef __DISPLAY_H__#define __DISPLAY_H__#include "bounds.h"#include "types.h"#include "data.h"/* codepages */enum Codepage {	CP_INVALID = 0,	CP_DEVICE,	CP_GRAPHICAL,	CP_WINDOWS,	CP_UNICODE,};/* "graphical" chars (ie. lines, corners and patterns like in ASCII) */// if a char has all 4 orthogonally possible alignments, we suffix its name// by a number 0..3, counting clockwise (mathematically positive)#define	GC_TRANSPARENT		'0'		// transparent#define	GC_1VLINE		'|'		// single vertical line#define	GC_1HLINE		'-'		// single horizontal line#define	GC_1CORNER0		'l'		// right-upper corner, single#define	GC_1CORNER1		'j'		// right-lower corner, single#define	GC_1CORNER2		'L'		// left-lower corner, single#define	GC_1CORNER3		'F'		// left-upper corner, single#define	GC_1UTEE		0x01		// 'T', with "nose" pointing up#define	GC_1LTEE		0x02		// 'T', with "nose" pointing left#define	GC_1DTEE		0x03		// 'T', with "nose" pointing down#define	GC_1RTEE		0x04		// 'T', with "nose" pointing right#define	GC_1CROSS		0x05		// a cross like in '+', but bigger to fit with other line-drawing chars#define	GC_2VLINE		'H'		// double vertical line#define	GC_2HLINE		'='		// double horizontal line#define	GC_2CORNER0		0x06		// right-upper corner, double#define	GC_2CORNER1		0x07		// right-lower corner, double#define	GC_2CORNER2		0x08		// left-lower corner, double#define	GC_2CORNER3		0x09		// left-upper corner, double#define GC_LOW			0x0a		// regular pattern, density: low#define GC_MEDIUM		0x0b		// regular pattern, density: medium#define GC_HIGH			0x0c		// regular pattern, density: high#define GC_FULL			0x0d		// regular pattern, density: full#define GC_ARROW_UP		'^'		// a filled triangle, points up#define GC_ARROW_DOWN		'v'		// a filled triangle, points down#define GC_ARROW_LEFT		'<'		// a filled triangle, points left#define GC_ARROW_RIGHT		'>'		// a filled triangle, points right#define GC_SMALL_ARROW_UP	'A'		// an arrow up#define GC_SMALL_ARROW_DOWN	'V'		// an arrow down#define GC_FILLED_CIRCLE	'o'		// a filled and centered circle#define GC_FILLED_QUAD		'x'		// a filled and centered quad#define GC_FILLED_UPPER		0x0e		// upper half filled#define GC_FILLED_LOWER		0x0f		// lower half filled/* virtual colors */typedef int vc;#define NUM_VCS				15// real colors#define VC_BLACK			0#define VC_BLUE				1#define VC_GREEN			2#define VC_CYAN				3#define VC_RED				4#define VC_MAGENTA			5#define VC_YELLOW			6#define VC_WHITE			7// functional colors#define VC_TRANSPARENT			8#define VC_LIGHTEN			9#define VC_DARKEN			10#define VC_MONOCHROME			11#define VC_INVERSE			12// like VC_TRANSPARENT, but always change 'this color' if it would equal the 'other color'#define VC_TRANSPARENT_EXCLUSIVE	13// like VC_TRANSPARENT, but always change the 'other color' if it would equal 'this color'#define VC_TRANSPARENT_EXCLUSIVE_DOM	14#define VC_LIGHT(vc) ((vc) | 0x80)#define VC_GET_LIGHT(vc) ((vc) & 0x80)#define VC_GET_BASECOLOR(vc) ((vc) & 0x7f)/* virtual color pairs (fg/bg) */typedef int vcp;#define VCP_INVALID	-1#define VCP(vc_fg, vc_bg) (vcp)((vc_bg) | ((vc_fg)<<8))#define VCP_BACKGROUND(v) ((v) & 0xff)#define VCP_FOREGROUND(v) ((v>>8) & 0xff)vcp mixColors(vcp base, vcp layer);/* *	Display (absolute/screen coordinates) */struct AbstractChar {	Codepage codepage;	uint32 chr;};struct AbstractColoredChar {	Codepage codepage;	vcp color;	uint32 chr;};enum CursorMode { CURSOR_OFF, CURSOR_NORMAL, CURSOR_BOLD };class Display: public Bounds {public:				Display() {};				Display(const Bounds &b) : Bounds(b) {};	virtual			~Display() {};	/* extends Bounds */	virtual	void		assign(int x, int y, int w, int h);	virtual	void		move(int deltax, int deltay);	virtual	void		resize(int deltaw, int deltah);	/* new */	virtual	void		fill(int x, int y, int w, int h, vcp color, char chr, Codepage cp = CP_DEVICE) = 0;     		void		fillAll(vcp color, char chr, Codepage cp = CP_DEVICE);	virtual	void		getCursor(int &x, int &y) const = 0;	virtual	CursorMode	getCursorMode() const = 0;	virtual	int		nprint(int x, int y, vcp color, const char *str, int maxstrlen, Codepage cp = CP_DEVICE) = 0;		int		nprintW(int x, int y, vcp color, const AbstractChar *widestr, int maxstrlen);		int		nprintf(int x, int y, vcp color, int maxstrlen, Codepage cp, const char *format, ...);		int		print(int x, int y, vcp color, const char *str, Codepage cp = CP_DEVICE);		int		printW(int x, int y, vcp color, const AbstractChar *widestr);		int		printChar(int x, int y, vcp color, char chr, Codepage cp = CP_DEVICE);		int		printf(int x, int y, vcp color, Codepage cp, const char *format, ...);	virtual	bool		read(uint &rawchar, vcp &color, int x, int y) const = 0;	virtual	void		setBounds(const Bounds &b);	virtual	void		setCursor(int x, int y, CursorMode mode = CURSOR_NORMAL) = 0;	virtual	void		setCursorMode(CursorMode mode = CURSOR_NORMAL) = 0;#if 0	/* graphical extension */	virtual	void		line(int px1, int py1, int px2, int py2, uint color);	virtual	void		putPixel(int px, int py, uint color);	virtual	void		textToPixelCoord(int tx, int ty, int &px, int &py) const;	virtual	void		pixelToTextCoord(int px, int py, int &tx, int &ty) const;#endif};/* *	RDisplay (relative coords) */typedef Display RDisplay;/* *	NullRDisplay */class NullRDisplay: public RDisplay {protected:	uint cursorx, cursory;	CursorMode cursorMode;public:				NullRDisplay(const Bounds &b);	/* extends Display */	virtual	void		fill(int x, int y, int w, int h, vcp color, char chr, Codepage cp = CP_DEVICE);	virtual	void		getCursor(int &x, int &y) const;	virtual	CursorMode	getCursorMode() const;	virtual	int		nprint(int x, int y, vcp color, const char *str, int maxstrlen, Codepage cp = CP_DEVICE);	virtual	bool		read(uint &rawchar, vcp &color, int x, int y) const;	virtual	void		setCursor(int x, int y, CursorMode mode = CURSOR_NORMAL);	virtual	void		setCursorMode(CursorMode mode = CURSOR_NORMAL);};/* *   BufferedRDisplay */struct ColoredChar {	uint rawchar;	vcp color;};class BufferedRDisplay: public RDisplay {protected:	int cursorx, cursory;	CursorMode cursorMode;public:	ColoredChar *buf;				BufferedRDisplay(const Bounds &b);	virtual			~BufferedRDisplay();	/* extends RDisplay */	virtual	void		fill(int x, int y, int w, int h, vcp color, char chr, Codepage cp = CP_DEVICE);	virtual	void		getCursor(int &x, int &y) const;	virtual	CursorMode	getCursorMode() const;	virtual	int		nprint(int x, int y, vcp color, const char *str, int maxstrlen, Codepage cp = CP_DEVICE);	virtual	bool		read(uint &rawchar, vcp &color, int x, int y) const;	virtual	void		setBounds(const Bounds &b);	virtual	void		setCursor(int x, int y, CursorMode mode = CURSOR_NORMAL);	virtual	void		setCursorMode(CursorMode mode = CURSOR_NORMAL);};/* system-dependant (implementation in $MYSYSTEM/ *.cc) */uint	mapCharToSystemCP(char chr, Codepage cp);bool	sys_get_screen_size(int &w, int &h);bool	sys_set_screen_size(int w, int h);bool	sys_get_winch_flag();void	sys_set_winch_flag(bool f);class SystemDisplay: public Display {public:				SystemDisplay();	/* new */	virtual	void		copyFromDisplay(const Display &display, int x, int y, const Bounds &clipping) = 0;	virtual	void		show() = 0;};SystemDisplay *allocSystemDisplay(const char *title);/* *   SystemRDisplay */class SystemRDisplay: public RDisplay {public:	SystemDisplay *system_display;				SystemRDisplay(SystemDisplay *system_display, const Bounds &b);	virtual			~SystemRDisplay();	/* extends Display */	virtual	void		fill(int x, int y, int w, int h, vcp color, char chr, Codepage cp = CP_DEVICE);	virtual	void		getCursor(int &x, int &y) const;	virtual	CursorMode	getCursorMode() const;	virtual	int		nprint(int x, int y, vcp color, const char *str, int maxstrlen, Codepage cp = CP_DEVICE);	virtual	bool		read(uint &rawchar, vcp &color, int x, int y) const;	virtual	void		setBounds(const Bounds &b);	virtual	void		setCursor(int x, int y, CursorMode mode = CURSOR_NORMAL);	virtual	void		setCursorMode(CursorMode mode = CURSOR_NORMAL);};#endif /* __DISPLAY_H__ */