/* note: unused Drawable d */
GC
XCreateGC(Display *dpy, Drawable d, unsigned long valuemask, XGCValues *values)
{
GC gc;
XGCValues *vp;
if ((gc = (GC) Xmalloc(sizeof(struct _XGC))) == NULL)
return NULL;
if ((vp = (XGCValues *)Xmalloc(sizeof(XGCValues))) == NULL) {
Xfree(gc);
return NULL;
}
gc->ext_data = (XExtData *)vp;
memcpy(vp, &initial_GC, sizeof(initial_GC));
gc->gid = GrNewGC();
/* X11 doesn't draw background, must set on all GrNewGC's*/
GrSetGCUseBackground(gc->gid, GR_FALSE);
/* X11 defaults to fg=black, bg=white, NX is opposite...*/
if (!(valuemask & GCForeground))
XSetForeground(dpy, gc, 0L); /* black*/
if (!(valuemask & GCBackground))
XSetBackground(dpy, gc, ~0L); /* white*/
setupGC(dpy, gc, valuemask, values);
return gc;
}
/**
* Initialize the window system
*/
void CGWindow::Initialize(int argc, char *argv[])
{
Arg al[10];
int ac;
/* create the toplevel shell */
ac=0;
XtSetArg(al[ac],XtNtitle,"CGWindow Phase1"); ac++;
m_Toplevel = XtAppInitialize(&m_Context,"",NULL,0,&argc,argv,
NULL,al,ac);
/* set window size. */
ac=0;
XtSetArg(al[ac],XmNheight,300); ac++;
XtSetArg(al[ac],XmNwidth,300); ac++;
XtSetValues(m_Toplevel,al,ac);
/* create a drawing area widget. */
ac=0;
m_DrawingArea=XmCreateDrawingArea(m_Toplevel,"drawing_area",al,ac);
XtManageChild(m_DrawingArea);
setupGC();
XtAddCallback(m_DrawingArea,XmNexposeCallback,ExposeCB,(XtPointer)this);
}
int
XChangeGC(Display *display, GC gc, unsigned long valuemask, XGCValues *values)
{
setupGC(display, gc, valuemask, values);
return 1;
}
