Actual source code: xinit.c
1: /*$Id: xinit.c,v 1.72 2001/03/23 23:20:15 balay Exp $*/
3: /*
4: This file contains routines to open an X window display and window
5: This consists of a number of routines that set the various
6: fields in the Window structure, which is passed to
7: all of these routines.
9: Note that if you use the default visual and colormap, then you
10: can use these routines with any X toolkit that will give you the
11: Window id of the window that it is managing. Use that instead of the
12: call to XiCreateWindow . Similarly for the Display.
13: */
15: #include src/sys/src/draw/impls/x/ximpl.h
17: EXTERN int XiUniformHues(PetscDraw_X *,int);
18: EXTERN int Xi_wait_map(PetscDraw_X*);
19: EXTERN int XiInitColors(PetscDraw_X*,Colormap);
20: EXTERN int XiFontFixed(PetscDraw_X*,int,int,XiFont**);
21: EXTERN int XiInitCmap(PetscDraw_X*);
22: EXTERN int PetscDrawSetColormap_X(PetscDraw_X*,char *,Colormap);
24: /*
25: XiOpenDisplay - Open a display
26: */
29: int XiOpenDisplay(PetscDraw_X* XiWin,char *display_name)
30: {
32: XiWin->disp = XOpenDisplay(display_name);
33: if (!XiWin->disp) {
34: SETERRQ1(1,"Unable to open display on %s\n. Make sure your COMPUTE NODES are authorized to connect \n\
35: to this X server and either your DISPLAY variable\n\
36: is set or you use the -display name option\n",display_name);
37: }
38: XiWin->screen = DefaultScreen(XiWin->disp);
39: return(0);
40: }
43: /*
44: XiSetGC - set the GC structure in the base window
45: */
48: int XiSetGC(PetscDraw_X* XiWin,PixVal fg)
49: {
50: XGCValues gcvalues; /* window graphics context values */
53: /* Set the graphics contexts */
54: /* create a gc for the ROP_SET operation (writing the fg value to a pixel) */
55: /* (do this with function GXcopy; GXset will automatically write 1) */
56: gcvalues.function = GXcopy;
57: gcvalues.foreground = fg;
58: XiWin->gc.cur_pix = fg;
59: XiWin->gc.set = XCreateGC(XiWin->disp,RootWindow(XiWin->disp,XiWin->screen),
60: GCFunction | GCForeground,&gcvalues);
61: return(0);
62: }
64: /*
65: Actually display a window at [x,y] with sizes (w,h)
66: If w and/or h are 0, use the sizes in the fields of XiWin
67: (which may have been set by, for example, XiSetWindowSize)
68: */
71: int XiDisplayWindow(PetscDraw_X* XiWin,char *label,int x,int y,int w,int h,PixVal backgnd_pixel)
72: {
73: unsigned int wavail,havail;
74: XSizeHints size_hints;
75: XWindowAttributes in_window_attributes;
76: XSetWindowAttributes window_attributes;
77: int depth,border_width;
78: unsigned long wmask;
81: /* get the available widths */
82: wavail = DisplayWidth(XiWin->disp,XiWin->screen);
83: havail = DisplayHeight(XiWin->disp,XiWin->screen);
84: if (w <= 0 || h <= 0) PetscFunctionReturn(2);
85: if ((unsigned int) w > wavail) w = wavail;
86: if ((unsigned int) h > havail) h = havail;
88: /* changed the next line from xtools version */
89: border_width = 0;
90: if (x < 0) x = 0;
91: if (y < 0) y = 0;
92: x = ((unsigned int) x + w > wavail) ? wavail - w : x;
93: y = ((unsigned int) y + h > havail) ? havail - h : y;
95: /* We need XCreateWindow since we may need an visual other than
96: the default one */
97: XGetWindowAttributes(XiWin->disp,RootWindow(XiWin->disp,XiWin->screen),&in_window_attributes);
98: window_attributes.background_pixmap = None;
99: window_attributes.background_pixel = backgnd_pixel;
100: /* No border for now */
101: window_attributes.border_pixmap = None;
102: /*
103: window_attributes.border_pixel = border_pixel;
104: */
105: window_attributes.bit_gravity = in_window_attributes.bit_gravity;
106: window_attributes.win_gravity = in_window_attributes.win_gravity;
107: /* Backing store is too slow in color systems */
108: window_attributes.backing_store = 0;
109: window_attributes.backing_pixel = backgnd_pixel;
110: window_attributes.save_under = 1;
111: window_attributes.event_mask = 0;
112: window_attributes.do_not_propagate_mask = 0;
113: window_attributes.override_redirect = 0;
114: window_attributes.colormap = XiWin->cmap;
115: /* None for cursor does NOT mean none, it means cursor of Parent */
116: window_attributes.cursor = None;
117: wmask = CWBackPixmap | CWBackPixel | CWBorderPixmap | CWBitGravity |
118: CWWinGravity | CWBackingStore |CWBackingPixel|CWOverrideRedirect |
119: CWSaveUnder | CWEventMask | CWDontPropagate |
120: CWCursor | CWColormap ;
121: depth = XiWin->depth;
122: /* DefaultDepth(XiWin->disp,XiWin->screen); */
123: XiWin->win = XCreateWindow(XiWin->disp,
124: RootWindow(XiWin->disp,XiWin->screen),
125: x,y,w,h,border_width,
126: depth,InputOutput,XiWin->vis,
127: wmask,&window_attributes);
129: if (!XiWin->win) PetscFunctionReturn(2);
131: /* set window manager hints */
132: {
133: XWMHints wm_hints;
134: XClassHint class_hints;
135: XTextProperty windowname,iconname;
136:
137: if (label) { XStringListToTextProperty(&label,1,&windowname);}
138: else { XStringListToTextProperty(&label,0,&windowname);}
139: if (label) { XStringListToTextProperty(&label,1,&iconname);}
140: else { XStringListToTextProperty(&label,0,&iconname);}
141:
142: wm_hints.initial_state = NormalState;
143: wm_hints.input = True;
144: wm_hints.flags = StateHint|InputHint;
145:
146: class_hints.res_name = 0;
147: class_hints.res_class = (char*)"BaseClass"; /* this is nonsense */
149: size_hints.x = x;
150: size_hints.y = y;
151: size_hints.min_width = 4*border_width;
152: size_hints.min_height = 4*border_width;
153: size_hints.width = w;
154: size_hints.height = h;
155: size_hints.flags = USPosition | USSize | PMinSize;
156:
157: XSetWMProperties(XiWin->disp,XiWin->win,&windowname,&iconname,0,0,&size_hints,&wm_hints,&class_hints);
158: }
159: /* make the window visible */
160: XSelectInput(XiWin->disp,XiWin->win,ExposureMask | StructureNotifyMask);
161: XMapWindow(XiWin->disp,XiWin->win);
163: /* some window systems are cruel and interfere with the placement of
164: windows. We wait here for the window to be created or to die */
165: if (Xi_wait_map(XiWin)){
166: XiWin->win = (Window)0;
167: PetscFunctionReturn(1);
168: }
169: /* Initial values for the upper left corner */
170: XiWin->x = 0;
171: XiWin->y = 0;
172: return(0);
173: }
177: int XiQuickWindow(PetscDraw_X* w,char* host,char* name,int x,int y,int nx,int ny)
178: {
179: int ierr;
182: XiOpenDisplay(w,host);
184: w->vis = DefaultVisual(w->disp,w->screen);
185: w->depth = DefaultDepth(w->disp,w->screen);
187: PetscDrawSetColormap_X(w,host,(Colormap)0);
189: XiDisplayWindow(w,name,x,y,nx,ny,(PixVal)0);
190: XiSetGC(w,w->cmapping[1]);
191: XiSetPixVal(w,w->background);
192: XSetWindowBackground(w->disp,w->win,w->cmapping[0]);
195: XiFontFixed(w,6,10,&w->font);
196: XFillRectangle(w->disp,w->win,w->gc.set,0,0,nx,ny);
197: return(0);
198: }
200: /*
201: A version from an already defined window
202: */
205: int XiQuickWindowFromWindow(PetscDraw_X* w,char *host,Window win)
206: {
207: Window root;
208: int d,ierr;
209: unsigned int ud;
210: XWindowAttributes attributes;
213: XiOpenDisplay(w,host);
214: w->win = win;
215: XGetWindowAttributes(w->disp,w->win,&attributes);
217: w->vis = DefaultVisual(w->disp,w->screen);
218: w->depth = DefaultDepth(w->disp,w->screen);
219: PetscDrawSetColormap_X(w,host,attributes.colormap);
221: XGetGeometry(w->disp,w->win,&root,&d,&d,
222: (unsigned int *)&w->w,(unsigned int *)&w->h,&ud,&ud);
223: w->x = w->y = 0;
225: XiSetGC(w,w->cmapping[1]);
226: XiSetPixVal(w,w->background);
227: XSetWindowBackground(w->disp,w->win,w->cmapping[0]);
228: XiFontFixed(w,6,10,&w->font);
229: return(0);
230: }
232: /*
233: XiSetWindowLabel - Sets new label in open window.
234: */
237: int XiSetWindowLabel(PetscDraw_X* Xiwin,char *label)
238: {
239: XTextProperty prop;
240: int len,ierr;
243: XGetWMName(Xiwin->disp,Xiwin->win,&prop);
244: prop.value = (unsigned char *)label;
245: PetscStrlen(label,&len);
246: prop.nitems = (long) len;
247: XSetWMName(Xiwin->disp,Xiwin->win,&prop);
248: return(0);
249: }
253: int XiSetToBackground(PetscDraw_X* XiWin)
254: {
256: if (XiWin->gc.cur_pix != XiWin->background) {
257: XSetForeground(XiWin->disp,XiWin->gc.set,XiWin->background);
258: XiWin->gc.cur_pix = XiWin->background;
259: }
260: return(0);
261: }