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#include "DispP.h"
#include "etc.h"
Display * Disp_GetDisplay(Disp disp) { return (disp->display); }
Colormap Disp_GetColormap(Disp disp) { return (disp->colormap); }
int Disp_GetWidth( Disp disp) { return (disp->width ); }
int Disp_GetHeight(Disp disp) { return (disp->height); }
/*===========================================================================*/
/* 色の取得 */
/*===========================================================================*/
unsigned long Disp_GetPixel(Disp disp, char * color_name)
{
XColor c0, c1;
XAllocNamedColor(disp->display, disp->colormap, color_name, &c0, &c1);
return (c0.pixel);
}
/*===========================================================================*/
/* GC の作成と解放 */
/*===========================================================================*/
GC Disp_CreateGC(Disp disp)
{
GC gc;
gc = XCreateGC(disp->display, disp->root_window, 0, 0);
return (gc);
}
int Disp_DestroyGC(Disp disp, GC gc)
{
XFreeGC(disp->display, gc);
return (0);
}
/*===========================================================================*/
/* オブジェクトの生成と削除 */
/*===========================================================================*/
/*---------------------------------------------------------------------------*/
/* オブジェクトの生成 */
/*---------------------------------------------------------------------------*/
Disp Disp_Create(char * display_name, int direct_draw)
{
Disp disp;
unsigned long int pixel;
disp = (Disp)malloc(sizeof(_Disp));
if (!disp) Error("Disp_Create", "Cannot allocate memory.");
disp->display = XOpenDisplay(display_name);
if (disp->display == NULL) Error("Disp_Create", "Cannot open display.");
disp->screen = DefaultScreen(disp->display);
disp->root_window = RootWindow(disp->display, disp->screen);
disp->colormap = DefaultColormap(disp->display, disp->screen);
disp->width = DisplayWidth( disp->display, disp->screen);
disp->height = DisplayHeight(disp->display, disp->screen);
disp->depth = DefaultDepth(disp->display, disp->screen);
disp->direct_draw = direct_draw;
if (disp->direct_draw) {
disp->pixmap = 0;
} else {
disp->pixmap = XCreatePixmap(disp->display, disp->root_window,
disp->width, disp->height, disp->depth);
}
return (disp);
}
/*---------------------------------------------------------------------------*/
/* オブジェクトの削除 */
/*---------------------------------------------------------------------------*/
Disp Disp_Destroy(Disp disp)
{
if (!disp) return (NULL);
if (disp->pixmap) XFreePixmap(disp->display, disp->pixmap);
if (disp->display) XCloseDisplay(disp->display);
free(disp);
return (NULL);
}
/*---------------------------------------------------------------------------*/
/* フラッシュ */
/*---------------------------------------------------------------------------*/
int Disp_Flush(Disp disp)
{
XEvent ev;
if (!disp->direct_draw) {
#if 0
XSetWindowBackgroundPixmap(disp->display, disp->root_window, disp->pixmap);
#endif
XClearWindow(disp->display, disp->root_window);
}
/* イベントのフラッシュ */
while (XPending(disp->display)) {
XNextEvent(disp->display, &ev);
}
XFlush(disp->display);
return (0);
}
/*---------------------------------------------------------------------------*/
/* X サーバとの Sync．(イベントキューを廃棄する) */
/*---------------------------------------------------------------------------*/
int Disp_Sync(Disp disp)
{
Disp_Flush(disp); /* リクエストのフラッシュ */
#if 1
XSync(disp->display, True); /* イベントキュー内のイベントを廃棄する */
#else
XSync(disp->display, False); /* イベントキュー内のイベントを廃棄しない */
#endif
return (0);
}
/*---------------------------------------------------------------------------*/
/* ピックスマップのクリア */
/*---------------------------------------------------------------------------*/
int Disp_ClearPixmap(Disp disp, GC gc)
{
if (disp->pixmap)
XFillRectangle(disp->display, disp->pixmap, gc,
0, 0, disp->width, disp->height);
return (0);
}
/*---------------------------------------------------------------------------*/
/* ディスプレイのクリア */
/*---------------------------------------------------------------------------*/
int Disp_ClearDisplay(Disp disp, unsigned long pixel)
{
if (disp->direct_draw) {
XSetWindowBackground(disp->display, disp->root_window, pixel);
} else {
XSetWindowBackgroundPixmap(disp->display, disp->root_window, disp->pixmap);
}
XClearWindow(disp->display, disp->root_window);
Disp_Flush(disp);
return (0);
}
/*---------------------------------------------------------------------------*/
/* 円の描画 */
/*---------------------------------------------------------------------------*/
int Disp_DrawFilledCircle(Disp disp, GC gc, int x, int y, int r)
{
if (x + r < 0 || disp->width - 1 < x - r ||
y + r < 0 || disp->height - 1 < y - r) return (0);
if (disp->direct_draw)
XFillArc(disp->display, disp->root_window, gc,
x - r, y - r, r * 2 + 1, r * 2 + 1, 0, 360 * 64);
else
XFillArc(disp->display, disp->pixmap, gc,
x - r, y - r, r * 2 + 1, r * 2 + 1, 0, 360 * 64);
return (0);
}
int Disp_DrawFilledCircles(Disp disp, GC gc, XArc * arcs, int n)
{
if (n > 0) {
if (disp->direct_draw)
XFillArcs(disp->display, disp->root_window, gc, arcs, n);
else
XFillArcs(disp->display, disp->pixmap, gc, arcs, n);
}
return (0);
}
/*****************************************************************************/
/* ここまで */
/*****************************************************************************/
/*****************************************************************************/
/* End of File. */
/*****************************************************************************/
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