kolibrios/programs/games/checkers/trunk/gnu-draw.h

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#include "gr-draw.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/keysym.h>
#include <stdio.h>
#ifndef _GNU_GRAPHIC_DRAW_H
#define _GNU_GRAPHIC_DRAW_H
class TGnuGraphDraw : public TGraphDraw
{
public:
TGnuGraphDraw(const char *s = 0);
~TGnuGraphDraw();
static unsigned long GetKeySym(unsigned int key) {return key;}
unsigned long GetBlackColor();
unsigned long GetWhiteColor();
unsigned long CreateColor(unsigned short red,
unsigned short green, unsigned short blue);
void FreeColor(unsigned long c);
unsigned int GetBgColor() const {return bgcolor;}
void SetBgColor(unsigned long c) {bgcolor = c;}
int GetStatus() {return disp ? (win ? 1 : 0) : (-1);}
int Init() {return disp ? 0 : -1;}
int Run(int evmask = 0, int w = INT_MIN, int h = INT_MIN);
void GetSize(int &w, int &h);
int OpenDraw();
int IsDraw() {return disp && win && prGC;}
void CloseDraw() {if (prGC) {XFreeGC(disp, prGC); prGC = 0;}}
int SetColor(unsigned long c);
int DrawLine(int x0, int y0, int x1, int y1);
int DrawText(int x0, int y0, char *text);
int DrawClear();
int GetTextH(const char *s) {return 10;}
int GetTextW(const char *s) {return 6 * strlen(s);}
void Quit(int q = 1) {quit = (q > 0) ? q : 0;}
void ResReinit(int w = INT_MIN, int h = INT_MIN);
protected:
void InitDisplay();
void InitWindow(int w = INT_MIN, int h = INT_MIN);
protected:
int quit;
unsigned long bgcolor;
Display *disp;
Window win;
int ScrNum;
GC prGC;
Mask xmask;
};
TGnuGraphDraw::TGnuGraphDraw(const char *s /*= 0*/) : TGraphDraw(s), prGC(0)
{
xmask = 0;
InitDisplay();
}
TGnuGraphDraw::~TGnuGraphDraw()
{
CloseDraw();
if (disp) XCloseDisplay(disp);
}
void TGnuGraphDraw::InitDisplay()
{
disp = XOpenDisplay(NULL);
if (disp) ScrNum = DefaultScreen(disp);
else
{
int L = 100;
if (title) L += strlen(title);
char *str = new char[L];
if (str)
{
strcpy(str, "\n");
if (title && title[0]) {strcat(str, title); strcat(str, ": ");}
strcat(str, "Can't connect to X Server.\n");
printf("%s", str);
}
}
bgcolor = GetWhiteColor();
}
unsigned long TGnuGraphDraw::GetBlackColor()
{
if (disp) return BlackPixel(disp, ScrNum);
else return TGraphDraw::GetBlackColor();
}
unsigned long TGnuGraphDraw::GetWhiteColor()
{
if (disp) return WhitePixel(disp, ScrNum);
else return TGraphDraw::GetWhiteColor();
}
unsigned long TGnuGraphDraw::CreateColor(unsigned short red,
unsigned short green, unsigned short blue)
{
if (disp)
{
XColor color;
color.red = red; color.green = green; color.blue = blue;
if (XAllocColor(disp, DefaultColormap(disp, ScrNum), &color))
{
return color.pixel;
}
else return BlackPixel(disp, ScrNum);
}
else return TGraphDraw::CreateColor(red, green, blue);
}
void TGnuGraphDraw::FreeColor(unsigned long c)
{
if (disp && c != BlackPixel(disp, ScrNum))
{
XFreeColors(disp, DefaultColormap(disp, ScrNum), &c, 1, 0);
}
}
void TGnuGraphDraw::GetSize(int &w, int &h)
{
if (disp)
{
int x, y;
Window w_ret;
unsigned int br, dr, width = 0, height = 0;
XGetGeometry(disp, win, &w_ret, &x, &y, &width, &height, &br, &dr);
w = width; h = height;
}
else TGraphDraw::GetSize(w, h);
}
int TGnuGraphDraw::OpenDraw()
{
if (!disp && !win) return 0;
if (!prGC) prGC = XCreateGC(disp, win, 0, NULL);
return 1;
}
int TGnuGraphDraw::SetColor(unsigned long c)
{
if (!disp || !prGC) return 0;
XSetForeground(disp, prGC, c);
return 1;
}
int TGnuGraphDraw::DrawLine(int x0, int y0, int x1, int y1)
{
if (!disp || !prGC) return 0;
XDrawLine(disp, win, prGC, x0, y0, x1, y1);
return 1;
}
int TGnuGraphDraw::DrawText(int x0, int y0, char *text)
{
if (!disp || !prGC) return 0;
XDrawString(disp, win, prGC, x0, y0 + GetTextH(text), text, strlen(text));
return 1;
}
int TGnuGraphDraw::DrawClear()
{
if (!disp || !prGC) return 0;
XClearWindow(disp, win);
return 1;
}
void TGnuGraphDraw::InitWindow(int w, int h)
{
if (w <= 0 || h <= 0) TGraphDraw::GetSize(w, h);
win = XCreateSimpleWindow(disp, RootWindow(disp, ScrNum),
100, 100, w, h, 2, BlackPixel(disp, ScrNum), GetBgColor());
XSelectInput(disp, win, xmask);
XMapWindow(disp, win);
}
void TGnuGraphDraw::ResReinit(int w, int h)
{
if (disp) {free(disp); disp = 0;}
InitDisplay();
if (!disp) exit(1);
else if (win) InitWindow(w, h);
}
int TGnuGraphDraw::Run(int evmask, int w, int h)
{
if (!disp) return -1;
if (!evfunc) return -2;
xmask = ExposureMask;
if (evmask & button_down_mask) xmask |= ButtonPressMask;
if (evmask & button_up_mask) xmask |= ButtonReleaseMask;
if (evmask & key_down_mask) xmask |= KeyPressMask;
if (evmask & key_up_mask) xmask |= KeyReleaseMask;
if (evmask & mouse_move_mask) xmask |= PointerMotionMask;
if (evmask & mouse_drag_mask)
{
xmask |= ButtonMotionMask | Button1MotionMask | Button2MotionMask |
Button3MotionMask | Button4MotionMask | Button5MotionMask;
}
InitWindow(w, h);
XEvent xevent;
KeySym sym;
char str[50];
event ev;
int stpr = 0;
quit = 0;
while (quit == 0)
{
if (stpr == 0)
{
ev.type = event::start;
ev.any.drw = this;
evfunc(ev);
CloseDraw();
stpr = 1;
}
else
{
XNextEvent(disp, &xevent);
switch(xevent.type)
{
case Expose:
if (xevent.xexpose.count != 0) break;
ev.type = event::draw;
ev.any.drw = this;
evfunc(ev);
CloseDraw();
break;
case ButtonPress:
ev.type = event::button_down;
ev.button.drw = this;
ev.button.x = xevent.xbutton.x;
ev.button.y = xevent.xbutton.y;
ev.button.n = xevent.xbutton.button;
evfunc(ev);
CloseDraw();
break;
case ButtonRelease:
ev.type = event::button_up;
ev.button.drw = this;
ev.button.x = xevent.xbutton.x;
ev.button.y = xevent.xbutton.y;
ev.button.n = xevent.xbutton.button;
evfunc(ev);
CloseDraw();
break;
case MotionNotify:
ev.type = event::mouse_move;
ev.button.drw = this;
ev.button.x = xevent.xbutton.x;
ev.button.y = xevent.xbutton.y;
ev.button.n = xevent.xbutton.button;
evfunc(ev);
CloseDraw();
break;
case KeyPress:
memset(str, 0, 20);
XLookupString(&xevent.xkey, str, 20, &sym, 0);
ev.type = event::key_down;
ev.key.drw = this;
ev.key.k = (unsigned long)sym;
evfunc(ev);
CloseDraw();
break;
case KeyRelease:
memset(str, 0, 20);
XLookupString(&xevent.xkey, str, 20, &sym, 0);
ev.type = event::key_up;
ev.key.drw = this;
ev.key.k = (unsigned long)sym;
evfunc(ev);
CloseDraw();
break;
}
}
if (quit == 1)
{
ev.type = event::close;
ev.any.drw = this;
Quit(evfunc(ev));
CloseDraw();
}
}
CloseDraw();
XDestroyWindow(disp, win);
win = 0;
return quit;
}
#endif //_GNU_GRAPHIC_DRAW_H