Actual source code: xops.c
1: /*
2: Defines the operations for the X PetscDraw implementation.
3: */
5: #include <../src/sys/classes/draw/impls/x/ximpl.h>
7: /*
8: These macros transform from the users coordinates to the X-window pixel coordinates.
9: */
10: #define XTRANS(draw,xwin,x) ((int)(((xwin)->w-1)*((draw)->port_xl + (((x - (draw)->coor_xl)*((draw)->port_xr - (draw)->port_xl))/((draw)->coor_xr - (draw)->coor_xl)))))
11: #define YTRANS(draw,xwin,y) (((xwin)->h-1) - (int)(((xwin)->h-1)*((draw)->port_yl + (((y - (draw)->coor_yl)*((draw)->port_yr - (draw)->port_yl))/((draw)->coor_yr - (draw)->coor_yl)))))
13: #define ITRANS(draw,xwin,i) ((draw)->coor_xl + (((PetscReal)(i))*((draw)->coor_xr - (draw)->coor_xl)/((xwin)->w-1) - (draw)->port_xl)/((draw)->port_xr - (draw)->port_xl))
14: #define JTRANS(draw,xwin,j) ((draw)->coor_yl + (((PetscReal)(j))/((xwin)->h-1) + (draw)->port_yl - 1)*((draw)->coor_yr - (draw)->coor_yl)/((draw)->port_yl - (draw)->port_yr))
16: static PetscErrorCode PetscDrawSetViewport_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr)
17: {
18: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
19: int xa,ya,xb,yb,xmax = XiWin->w-1,ymax = XiWin->h-1;
20: XRectangle box;
23: xa = (int)(xl*xmax); ya = ymax - (int)(yr*ymax);
24: xb = (int)(xr*xmax); yb = ymax - (int)(yl*ymax);
25: PetscDrawCollectiveBegin(draw);
26: box.x = (short)xa; box.width = (unsigned short)(xb + 1 - xa);
27: box.y = (short)ya; box.height = (unsigned short)(yb + 1 - ya);
28: XSetClipRectangles(XiWin->disp,XiWin->gc.set,0,0,&box,1,Unsorted);
29: PetscDrawCollectiveEnd(draw);
30: return 0;
31: }
33: static PetscErrorCode PetscDrawCoordinateToPixel_X(PetscDraw draw,PetscReal x,PetscReal y,int *i,int *j)
34: {
35: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
37: *i = XTRANS(draw,XiWin,x);
38: *j = YTRANS(draw,XiWin,y);
39: return 0;
40: }
42: static PetscErrorCode PetscDrawPixelToCoordinate_X(PetscDraw draw,int i,int j,PetscReal *x,PetscReal *y)
43: {
44: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
46: *x = ITRANS(draw,XiWin,i);
47: *y = JTRANS(draw,XiWin,j);
48: return 0;
49: }
51: static PetscErrorCode PetscDrawPoint_X(PetscDraw draw,PetscReal x,PetscReal y,int c)
52: {
53: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
54: int xx,yy,i,j;
56: xx = XTRANS(draw,XiWin,x);
57: yy = YTRANS(draw,XiWin,y);
58: PetscDrawXiSetColor(XiWin,c);
59: for (i=-1; i<2; i++) {
60: for (j=-1; j<2; j++) {
61: XDrawPoint(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xx+i,yy+j);
62: }
63: }
64: return 0;
65: }
67: static PetscErrorCode PetscDrawPointPixel_X(PetscDraw draw,int x,int y,int c)
68: {
69: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
71: PetscDrawXiSetColor(XiWin,c);
72: XDrawPoint(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x,y);
73: return 0;
74: }
76: static PetscErrorCode PetscDrawLine_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl)
77: {
78: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
79: int x_1,y_1,x_2,y_2;
81: PetscDrawXiSetColor(XiWin,cl);
82: x_1 = XTRANS(draw,XiWin,xl); x_2 = XTRANS(draw,XiWin,xr);
83: y_1 = YTRANS(draw,XiWin,yl); y_2 = YTRANS(draw,XiWin,yr);
84: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_1,y_1,x_2,y_2);
85: return 0;
86: }
88: static PetscErrorCode PetscDrawArrow_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl)
89: {
90: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
91: int x_1,y_1,x_2,y_2;
93: PetscDrawXiSetColor(XiWin,cl);
94: x_1 = XTRANS(draw,XiWin,xl); x_2 = XTRANS(draw,XiWin,xr);
95: y_1 = YTRANS(draw,XiWin,yl); y_2 = YTRANS(draw,XiWin,yr);
96: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_1,y_1,x_2,y_2);
97: if (x_1 == x_2 && y_1 == y_2) return 0;
98: if (x_1 == x_2 && PetscAbs(y_1 - y_2) > 7) {
99: if (y_2 > y_1) {
100: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2-3,y_2-3);
101: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2-3);
102: } else {
103: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2-3,y_2+3);
104: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2+3);
105: }
106: }
107: if (y_1 == y_2 && PetscAbs(x_1 - x_2) > 7) {
108: if (x_2 > x_1) {
109: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2-3,y_2-3,x_2,y_2);
110: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2-3,y_2+3,x_2,y_2);
111: } else {
112: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2-3);
113: XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2+3);
114: }
115: }
116: return 0;
117: }
119: static PetscErrorCode PetscDrawRectangle_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int c1,int c2,int c3,int c4)
120: {
121: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
122: int x,y,w,h,c = (c1 + c2 + c3 + c4)/4;
124: PetscDrawXiSetColor(XiWin,c);
125: x = XTRANS(draw,XiWin,xl); w = XTRANS(draw,XiWin,xr) + 1 - x; if (w <= 0) w = 1;
126: y = YTRANS(draw,XiWin,yr); h = YTRANS(draw,XiWin,yl) + 1 - y; if (h <= 0) h = 1;
127: XFillRectangle(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x,y,w,h);
128: return 0;
129: }
131: static PetscErrorCode PetscDrawEllipse_X(PetscDraw draw,PetscReal x,PetscReal y,PetscReal a,PetscReal b,int c)
132: {
133: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
134: int xA,yA,w,h;
136: PetscDrawXiSetColor(XiWin, c);
137: xA = XTRANS(draw,XiWin, x - a/2); w = XTRANS(draw,XiWin, x + a/2) + 1 - xA; w = PetscAbs(w);
138: yA = YTRANS(draw,XiWin, y + b/2); h = YTRANS(draw,XiWin, y - b/2) + 1 - yA; h = PetscAbs(h);
139: XFillArc(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xA,yA,w,h,0,360*64);
140: return 0;
141: }
143: PETSC_INTERN PetscErrorCode PetscDrawInterpolatedTriangle_X(PetscDraw_X*,int,int,int,int,int,int,int,int,int);
145: static PetscErrorCode PetscDrawTriangle_X(PetscDraw draw,PetscReal X1,PetscReal Y_1,PetscReal X2,PetscReal Y2,PetscReal X3,PetscReal Y3,int c1,int c2,int c3)
146: {
147: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
149: if (c1 == c2 && c2 == c3) {
150: XPoint pt[3];
151: PetscDrawXiSetColor(XiWin,c1);
152: pt[0].x = XTRANS(draw,XiWin,X1);
153: pt[0].y = YTRANS(draw,XiWin,Y_1);
154: pt[1].x = XTRANS(draw,XiWin,X2);
155: pt[1].y = YTRANS(draw,XiWin,Y2);
156: pt[2].x = XTRANS(draw,XiWin,X3);
157: pt[2].y = YTRANS(draw,XiWin,Y3);
158: XFillPolygon(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,pt,3,Convex,CoordModeOrigin);
159: } else {
160: int x1,y_1,x2,y2,x3,y3;
161: x1 = XTRANS(draw,XiWin,X1);
162: y_1 = YTRANS(draw,XiWin,Y_1);
163: x2 = XTRANS(draw,XiWin,X2);
164: y2 = YTRANS(draw,XiWin,Y2);
165: x3 = XTRANS(draw,XiWin,X3);
166: y3 = YTRANS(draw,XiWin,Y3);
167: PetscDrawInterpolatedTriangle_X(XiWin,x1,y_1,c1,x2,y2,c2,x3,y3,c3);
168: }
169: return 0;
170: }
172: static PetscErrorCode PetscDrawStringSetSize_X(PetscDraw draw,PetscReal x,PetscReal y)
173: {
174: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
175: int w,h;
177: w = (int)((XiWin->w)*x*(draw->port_xr - draw->port_xl)/(draw->coor_xr - draw->coor_xl));
178: h = (int)((XiWin->h)*y*(draw->port_yr - draw->port_yl)/(draw->coor_yr - draw->coor_yl));
179: PetscFree(XiWin->font);
180: PetscDrawXiFontFixed(XiWin,w,h,&XiWin->font);
181: return 0;
182: }
184: static PetscErrorCode PetscDrawStringGetSize_X(PetscDraw draw,PetscReal *x,PetscReal *y)
185: {
186: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
187: PetscReal w,h;
189: w = XiWin->font->font_w; h = XiWin->font->font_h;
190: if (x) *x = w*(draw->coor_xr - draw->coor_xl)/((XiWin->w)*(draw->port_xr - draw->port_xl));
191: if (y) *y = h*(draw->coor_yr - draw->coor_yl)/((XiWin->h)*(draw->port_yr - draw->port_yl));
192: return 0;
193: }
195: static PetscErrorCode PetscDrawString_X(PetscDraw draw,PetscReal x,PetscReal y,int c,const char chrs[])
196: {
197: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
198: int xx,yy,descent = XiWin->font->font_descent;
199: size_t len;
200: char *substr;
201: PetscToken token;
203: xx = XTRANS(draw,XiWin,x);
204: yy = YTRANS(draw,XiWin,y);
205: PetscDrawXiSetColor(XiWin,c);
207: PetscTokenCreate(chrs,'\n',&token);
208: PetscTokenFind(token,&substr);
209: while (substr) {
210: PetscStrlen(substr,&len);
211: XDrawString(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xx,yy-descent,substr,len);
212: yy += XiWin->font->font_h;
213: PetscTokenFind(token,&substr);
214: }
215: PetscTokenDestroy(&token);
216: return 0;
217: }
219: static PetscErrorCode PetscDrawStringVertical_X(PetscDraw draw,PetscReal x,PetscReal y,int c,const char text[])
220: {
221: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
222: int xx,yy,offset = XiWin->font->font_h - XiWin->font->font_descent;
223: char chr[2] = {0, 0};
225: xx = XTRANS(draw,XiWin,x);
226: yy = YTRANS(draw,XiWin,y);
227: PetscDrawXiSetColor(XiWin,c);
228: while ((chr[0] = *text++)) {
229: XDrawString(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xx,yy+offset,chr,1);
230: yy += XiWin->font->font_h;
231: }
232: return 0;
233: }
235: static PetscErrorCode PetscDrawFlush_X(PetscDraw draw)
236: {
237: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
238: PetscMPIInt rank;
241: /* make sure the X server processed requests from all processes */
242: PetscDrawCollectiveBegin(draw);
243: XSync(XiWin->disp,False);
244: PetscDrawCollectiveEnd(draw);
245: MPI_Barrier(PetscObjectComm((PetscObject)draw));
247: /* transfer pixmap contents to window (only the first process does this) */
248: if (XiWin->drw && XiWin->win) {
249: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
250: PetscDrawCollectiveBegin(draw);
251: if (rank == 0) XCopyArea(XiWin->disp,XiWin->drw,XiWin->win,XiWin->gc.set,0,0,XiWin->w,XiWin->h,0,0);
252: if (rank == 0) XSync(XiWin->disp,False);
253: PetscDrawCollectiveEnd(draw);
254: MPI_Barrier(PetscObjectComm((PetscObject)draw));
255: }
256: return 0;
257: }
259: static PetscErrorCode PetscDrawClear_X(PetscDraw draw)
260: {
261: PetscDraw_X *XiWin = (PetscDraw_X*)draw->data;
262: int xmax = XiWin->w-1, ymax = XiWin->h-1;
263: PetscReal xl = draw->port_xl, yl = draw->port_yl;
264: PetscReal xr = draw->port_xr, yr = draw->port_yr;
265: PetscMPIInt rank;
268: /* make sure the X server processed requests from all processes */
269: PetscDrawCollectiveBegin(draw);
270: XSync(XiWin->disp,False);
271: PetscDrawCollectiveEnd(draw);
272: MPI_Barrier(PetscObjectComm((PetscObject)draw));
274: /* only the first process handles the clearing business */
275: PetscDrawCollectiveBegin(draw);
276: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
277: if (rank == 0) {
278: int xa = (int)(xl*xmax), ya = ymax - (int)(yr*ymax);
279: int xb = (int)(xr*xmax), yb = ymax - (int)(yl*ymax);
280: unsigned int w = (unsigned int)(xb + 1 - xa);
281: unsigned int h = (unsigned int)(yb + 1 - ya);
282: PetscDrawXiSetPixVal(XiWin,XiWin->background);
283: XFillRectangle(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xa,ya,w,h);
284: XSync(XiWin->disp,False);
285: }
286: PetscDrawCollectiveEnd(draw);
287: MPI_Barrier(PetscObjectComm((PetscObject)draw));
288: return 0;
289: }
291: static PetscErrorCode PetscDrawSetDoubleBuffer_X(PetscDraw draw)
292: {
293: PetscDraw_X *win = (PetscDraw_X*)draw->data;
294: PetscMPIInt rank;
297: if (win->drw) return 0;
298: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
300: PetscDrawCollectiveBegin(draw);
301: if (rank == 0) PetscDrawXiQuickPixmap(win);
302: PetscDrawCollectiveEnd(draw);
303: MPI_Bcast(&win->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw));
304: return 0;
305: }
307: static PetscErrorCode PetscDrawGetPopup_X(PetscDraw draw,PetscDraw *popup)
308: {
309: PetscDraw_X *win = (PetscDraw_X*)draw->data;
310: PetscBool flg = PETSC_TRUE;
312: PetscOptionsGetBool(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_popup",&flg,NULL);
313: if (!flg || !win->win) {*popup = NULL; return 0;}
315: PetscDrawCreate(PetscObjectComm((PetscObject)draw),draw->display,NULL,win->x,win->y+win->h+10,220,220,popup);
316: PetscObjectSetOptionsPrefix((PetscObject)*popup,"popup_");
317: PetscObjectAppendOptionsPrefix((PetscObject)*popup,((PetscObject)draw)->prefix);
318: PetscDrawSetType(*popup,PETSC_DRAW_X);
319: draw->popup = *popup;
320: return 0;
321: }
323: static PetscErrorCode PetscDrawSetTitle_X(PetscDraw draw,const char title[])
324: {
325: PetscDraw_X *win = (PetscDraw_X*)draw->data;
326: PetscMPIInt rank;
329: if (!win->win) return 0;
330: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
331: PetscDrawCollectiveBegin(draw);
332: if (rank == 0) {
333: size_t len;
334: XTextProperty prop;
335: PetscStrlen(title,&len);
336: XGetWMName(win->disp,win->win,&prop);
337: XFree((void*)prop.value);
338: prop.value = (unsigned char*)title;
339: prop.nitems = (long)len;
340: XSetWMName(win->disp,win->win,&prop);
341: }
342: PetscDrawCollectiveEnd(draw);
343: return 0;
344: }
346: static PetscErrorCode PetscDrawCheckResizedWindow_X(PetscDraw draw)
347: {
348: PetscDraw_X *win = (PetscDraw_X*)draw->data;
349: int xywh[4];
350: PetscMPIInt rank;
353: if (!win->win) return 0;
354: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
356: PetscDrawCollectiveBegin(draw);
357: if (rank == 0) PetscDrawXiGetGeometry(win,xywh,xywh+1,xywh+2,xywh+3);
358: PetscDrawCollectiveEnd(draw);
359: MPI_Bcast(xywh,4,MPI_INT,0,PetscObjectComm((PetscObject)draw));
361: /* record new window position */
362: draw->x = win->x = xywh[0];
363: draw->y = win->y = xywh[1];
364: if (xywh[2] == win->w && xywh[3] == win->h) return 0;
365: /* record new window sizes */
366: draw->w = win->w = xywh[2];
367: draw->h = win->h = xywh[3];
369: /* recreate pixmap (only first processor does this) */
370: PetscDrawCollectiveBegin(draw);
371: if (rank == 0 && win->drw) PetscDrawXiQuickPixmap(win);
372: PetscDrawCollectiveEnd(draw);
373: MPI_Bcast(&win->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw));
374: /* reset the clipping */
375: PetscDrawSetViewport_X(draw,draw->port_xl,draw->port_yl,draw->port_xr,draw->port_yr);
376: return 0;
377: }
379: static PetscErrorCode PetscDrawResizeWindow_X(PetscDraw draw,int w,int h)
380: {
381: PetscDraw_X *win = (PetscDraw_X*)draw->data;
382: PetscMPIInt rank;
385: if (w == win->w && h == win->h) return 0;
386: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
388: if (win->win) {
389: PetscDrawCollectiveBegin(draw);
390: if (rank == 0) PetscDrawXiResizeWindow(win,w,h);
391: PetscDrawCollectiveEnd(draw);
392: PetscDrawCheckResizedWindow_X(draw);
393: } else if (win->drw) {
394: draw->w = win->w = w; draw->h = win->h = h;
395: /* recreate pixmap (only first processor does this) */
396: PetscDrawCollectiveBegin(draw);
397: if (rank == 0) PetscDrawXiQuickPixmap(win);
398: MPI_Bcast(&win->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw));
399: /* reset the clipping */
400: PetscDrawCollectiveEnd(draw);
401: PetscDrawSetViewport_X(draw,draw->port_xl,draw->port_yl,draw->port_xr,draw->port_yr);
402: }
403: return 0;
404: }
406: #include <X11/cursorfont.h>
408: static PetscErrorCode PetscDrawGetMouseButton_X(PetscDraw draw,PetscDrawButton *button,PetscReal *x_user,PetscReal *y_user,PetscReal *x_phys,PetscReal *y_phys)
409: {
410: PetscDraw_X *win = (PetscDraw_X*)draw->data;
411: Cursor cursor;
412: XEvent report;
413: Window root,child;
414: int root_x,root_y,px=0,py=0;
415: unsigned int w,h,border,depth;
416: unsigned int keys_button;
417: PetscMPIInt rank;
418: PetscReal xx,yy;
421: *button = PETSC_BUTTON_NONE;
422: if (!win->win) return 0;
423: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
425: PetscDrawCollectiveBegin(draw);
426: if (rank) goto finally;
428: /* change cursor to indicate input */
430: XDefineCursor(win->disp,win->win,cursor);
431: /* wait for mouse button events */
432: XSelectInput(win->disp,win->win,ButtonPressMask|ButtonReleaseMask);
433: while (XCheckTypedEvent(win->disp,ButtonPress,&report));
434: XMaskEvent(win->disp,ButtonReleaseMask,&report);
435: /* get mouse pointer coordinates */
436: XQueryPointer(win->disp,report.xmotion.window,&root,&child,&root_x,&root_y,&px,&py,&keys_button);
437: /* the user may resize the window before pressing the mouse button */
438: XGetGeometry(win->disp,win->win,&root,&root_x,&root_y,&w,&h,&border,&depth);
439: /* cleanup input event handler and cursor */
440: XSelectInput(win->disp,win->win,NoEventMask);
441: XUndefineCursor(win->disp,win->win);
442: XFreeCursor(win->disp, cursor);
443: XSync(win->disp,False);
445: switch (report.xbutton.button) {
446: case Button1: *button = PETSC_BUTTON_LEFT; break;
447: case Button2: *button = PETSC_BUTTON_CENTER; break;
448: case Button3: *button = PETSC_BUTTON_RIGHT; break;
449: case Button4: *button = PETSC_BUTTON_WHEEL_UP; break;
450: case Button5: *button = PETSC_BUTTON_WHEEL_DOWN; break;
451: }
452: if (report.xbutton.state & ShiftMask) {
453: switch (report.xbutton.button) {
454: case Button1: *button = PETSC_BUTTON_LEFT_SHIFT; break;
455: case Button2: *button = PETSC_BUTTON_CENTER_SHIFT; break;
456: case Button3: *button = PETSC_BUTTON_RIGHT_SHIFT; break;
457: }
458: }
459: xx = ((PetscReal)px)/w;
460: yy = 1 - ((PetscReal)py)/h;
461: if (x_user) *x_user = draw->coor_xl + (xx - draw->port_xl)*(draw->coor_xr - draw->coor_xl)/(draw->port_xr - draw->port_xl);
462: if (y_user) *y_user = draw->coor_yl + (yy - draw->port_yl)*(draw->coor_yr - draw->coor_yl)/(draw->port_yr - draw->port_yl);
463: if (x_phys) *x_phys = xx;
464: if (y_phys) *y_phys = yy;
466: finally:
467: PetscDrawCollectiveEnd(draw);
468: PetscDrawCheckResizedWindow_X(draw);
469: return 0;
470: }
472: static PetscErrorCode PetscDrawPause_X(PetscDraw draw)
473: {
474: PetscDraw_X *win = (PetscDraw_X*)draw->data;
476: if (!win->win) return 0;
477: if (draw->pause > 0) PetscSleep(draw->pause);
478: else if (draw->pause == -1) {
479: PetscDrawButton button = PETSC_BUTTON_NONE;
480: PetscDrawGetMouseButton(draw,&button,NULL,NULL,NULL,NULL);
481: if (button == PETSC_BUTTON_CENTER) draw->pause = 0;
482: }
483: return 0;
484: }
486: static PetscErrorCode PetscDrawDestroy_X(PetscDraw draw)
487: {
488: PetscDraw_X *win = (PetscDraw_X*)draw->data;
490: PetscDrawDestroy(&draw->popup);
491: PetscDrawXiClose(win);
492: PetscFree(draw->data);
493: return 0;
494: }
496: static PetscErrorCode PetscDrawGetSingleton_X(PetscDraw,PetscDraw*);
497: static PetscErrorCode PetscDrawRestoreSingleton_X(PetscDraw,PetscDraw*);
498: PETSC_INTERN PetscErrorCode PetscDrawGetImage_X(PetscDraw,unsigned char[][3],unsigned int*,unsigned int*,unsigned char*[]);
500: static struct _PetscDrawOps DvOps = { PetscDrawSetDoubleBuffer_X,
501: PetscDrawFlush_X,
502: PetscDrawLine_X,
503: NULL,
504: NULL,
505: PetscDrawPoint_X,
506: NULL,
507: PetscDrawString_X,
508: PetscDrawStringVertical_X,
509: PetscDrawStringSetSize_X,
510: PetscDrawStringGetSize_X,
511: PetscDrawSetViewport_X,
512: PetscDrawClear_X,
513: PetscDrawRectangle_X,
514: PetscDrawTriangle_X,
515: PetscDrawEllipse_X,
516: PetscDrawGetMouseButton_X,
517: PetscDrawPause_X,
518: NULL,
519: NULL,
520: PetscDrawGetPopup_X,
521: PetscDrawSetTitle_X,
522: PetscDrawCheckResizedWindow_X,
523: PetscDrawResizeWindow_X,
524: PetscDrawDestroy_X,
525: NULL,
526: PetscDrawGetSingleton_X,
527: PetscDrawRestoreSingleton_X,
528: NULL,
529: PetscDrawGetImage_X,
530: NULL,
531: PetscDrawArrow_X,
532: PetscDrawCoordinateToPixel_X,
533: PetscDrawPixelToCoordinate_X,
534: PetscDrawPointPixel_X,
535: NULL};
537: static PetscErrorCode PetscDrawGetSingleton_X(PetscDraw draw,PetscDraw *sdraw)
538: {
539: PetscDraw_X *Xwin = (PetscDraw_X*)draw->data,*sXwin;
541: PetscDrawCreate(PETSC_COMM_SELF,draw->display,draw->title,draw->x,draw->y,draw->w,draw->h,sdraw);
542: PetscObjectChangeTypeName((PetscObject)*sdraw,PETSC_DRAW_X);
543: PetscMemcpy((*sdraw)->ops,&DvOps,sizeof(DvOps));
545: if (draw->popup) PetscDrawGetSingleton(draw->popup,&(*sdraw)->popup);
546: (*sdraw)->pause = draw->pause;
547: (*sdraw)->coor_xl = draw->coor_xl;
548: (*sdraw)->coor_xr = draw->coor_xr;
549: (*sdraw)->coor_yl = draw->coor_yl;
550: (*sdraw)->coor_yr = draw->coor_yr;
551: (*sdraw)->port_xl = draw->port_xl;
552: (*sdraw)->port_xr = draw->port_xr;
553: (*sdraw)->port_yl = draw->port_yl;
554: (*sdraw)->port_yr = draw->port_yr;
556: /* share drawables (windows and/or pixmap) from the parent draw */
557: PetscNewLog(*sdraw,&sXwin);
558: (*sdraw)->data = (void*)sXwin;
559: PetscDrawXiInit(sXwin,draw->display);
560: if (Xwin->win) {
561: PetscDrawXiQuickWindowFromWindow(sXwin,Xwin->win);
562: sXwin->drw = Xwin->drw; /* XXX If the window is ever resized, this is wrong! */
563: } else if (Xwin->drw) {
564: PetscDrawXiColormap(sXwin);
565: sXwin->drw = Xwin->drw;
566: }
567: PetscDrawXiGetGeometry(sXwin,&sXwin->x,&sXwin->y,&sXwin->w,&sXwin->h);
568: (*sdraw)->x = sXwin->x; (*sdraw)->y = sXwin->y;
569: (*sdraw)->w = sXwin->w; (*sdraw)->h = sXwin->h;
570: return 0;
571: }
573: static PetscErrorCode PetscDrawRestoreSingleton_X(PetscDraw draw,PetscDraw *sdraw)
574: {
575: if (draw->popup && (*sdraw)->popup) {
576: PetscBool isdrawx;
577: PetscDraw_X *pXwin = (PetscDraw_X*)draw->popup->data;
578: PetscDraw_X *sXwin = (PetscDraw_X*)(*sdraw)->popup->data;
579: PetscObjectTypeCompare((PetscObject)draw->popup,PETSC_DRAW_X,&isdrawx);
580: if (!isdrawx) goto finally;
581: PetscObjectTypeCompare((PetscObject)(*sdraw)->popup,PETSC_DRAW_X,&isdrawx);
582: if (!isdrawx) goto finally;
583: if (sXwin->win == pXwin->win) {
584: PetscDrawRestoreSingleton(draw->popup,&(*sdraw)->popup);
585: }
586: }
587: finally:
588: PetscDrawDestroy(sdraw);
589: return 0;
590: }
592: static PetscErrorCode PetscDrawXGetDisplaySize_Private(const char name[],int *width,int *height,PetscBool *has_display)
593: {
594: Display *display;
596: display = XOpenDisplay(name);
597: if (!display) {
598: *width = *height = 0;
599: (*PetscErrorPrintf)("Unable to open display on %s\n\
600: Make sure your COMPUTE NODES are authorized to connect\n\
601: to this X server and either your DISPLAY variable\n\
602: is set or you use the -display name option\n",name);
603: *has_display = PETSC_FALSE;
604: return 0;
605: }
606: *has_display = PETSC_TRUE;
607: *width = (int)DisplayWidth(display,DefaultScreen(display));
608: *height = (int)DisplayHeight(display,DefaultScreen(display));
609: XCloseDisplay(display);
610: return 0;
611: }
613: /*MC
614: PETSC_DRAW_X - PETSc graphics device that uses either X windows or its virtual version Xvfb
616: Options Database Keys:
617: + -display <display> - sets the display to use
618: . -x_virtual - forces use of a X virtual display Xvfb that will not display anything but -draw_save will still work.
619: Xvfb is automatically started up in PetscSetDisplay() with this option
620: . -draw_size w,h - percentage of screen (either 1, .5, .3, .25), or size in pixels
621: . -geometry x,y,w,h - set location and size in pixels
622: . -draw_virtual - do not open a window (draw on a pixmap), -draw_save will still work
623: - -draw_double_buffer - avoid window flickering (draw on pixmap and flush to window)
625: Level: beginner
627: .seealso: PetscDrawOpenX(), PetscDrawSetDisplay(), PetscDrawSetFromOptions()
629: M*/
631: PETSC_EXTERN PetscErrorCode PetscDrawCreate_X(PetscDraw draw)
632: {
633: PetscDraw_X *Xwin;
634: PetscMPIInt rank;
635: int x = draw->x,y = draw->y,w = draw->w,h = draw->h;
636: static int xavailable = 0,yavailable = 0,ybottom = 0,xmax = 0,ymax = 0;
637: PetscBool set,dvirtual = PETSC_FALSE,doublebuffer = PETSC_TRUE,has_display;
638: PetscInt xywh[4],osize = 4,nsizes=2;
639: PetscReal sizes[2] = {.3,.3};
640: static size_t DISPLAY_LENGTH = 265;
642: /* get the display variable */
643: if (!draw->display) {
644: PetscMalloc1(DISPLAY_LENGTH,&draw->display);
645: PetscGetDisplay(draw->display,DISPLAY_LENGTH);
646: }
648: /* initialize the display size */
649: if (!xmax) {
650: PetscDrawXGetDisplaySize_Private(draw->display,&xmax,&ymax,&has_display);
651: /* if some processors fail on this and others succed then this is a problem ! */
652: if (!has_display) {
653: (*PetscErrorPrintf)("PETSc unable to use X windows\nproceeding without graphics\n");
654: PetscDrawSetType(draw,PETSC_DRAW_NULL);
655: return 0;
656: }
657: }
659: /* allow user to set size of drawable */
660: PetscOptionsGetRealArray(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_size",sizes,&nsizes,&set);
661: if (set && nsizes == 1 && sizes[0] > 1.0) sizes[1] = sizes[0];
662: if (set) {
663: if (sizes[0] > 1.0) w = (int)sizes[0];
664: else if (sizes[0] == 1.0) w = PETSC_DRAW_FULL_SIZE;
665: else if (sizes[0] == .5) w = PETSC_DRAW_HALF_SIZE;
666: else if (sizes[0] == .3) w = PETSC_DRAW_THIRD_SIZE;
667: else if (sizes[0] == .25) w = PETSC_DRAW_QUARTER_SIZE;
668: if (sizes[1] > 1.0) h = (int)sizes[1];
669: else if (sizes[1] == 1.0) h = PETSC_DRAW_FULL_SIZE;
670: else if (sizes[1] == .5) h = PETSC_DRAW_HALF_SIZE;
671: else if (sizes[1] == .3) h = PETSC_DRAW_THIRD_SIZE;
672: else if (sizes[1] == .25) h = PETSC_DRAW_QUARTER_SIZE;
673: }
674: if (w == PETSC_DECIDE || w == PETSC_DEFAULT) w = draw->w = 300;
675: if (h == PETSC_DECIDE || h == PETSC_DEFAULT) h = draw->h = 300;
676: switch (w) {
677: case PETSC_DRAW_FULL_SIZE: w = draw->w = (xmax - 10); break;
678: case PETSC_DRAW_HALF_SIZE: w = draw->w = (xmax - 20)/2; break;
679: case PETSC_DRAW_THIRD_SIZE: w = draw->w = (xmax - 30)/3; break;
680: case PETSC_DRAW_QUARTER_SIZE: w = draw->w = (xmax - 40)/4; break;
681: }
682: switch (h) {
683: case PETSC_DRAW_FULL_SIZE: h = draw->h = (ymax - 10); break;
684: case PETSC_DRAW_HALF_SIZE: h = draw->h = (ymax - 20)/2; break;
685: case PETSC_DRAW_THIRD_SIZE: h = draw->h = (ymax - 30)/3; break;
686: case PETSC_DRAW_QUARTER_SIZE: h = draw->h = (ymax - 40)/4; break;
687: }
689: PetscOptionsGetBool(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_virtual",&dvirtual,NULL);
691: if (!dvirtual) {
693: /* allow user to set location and size of window */
694: xywh[0] = x; xywh[1] = y; xywh[2] = w; xywh[3] = h;
695: PetscOptionsGetIntArray(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-geometry",xywh,&osize,NULL);
696: x = (int)xywh[0]; y = (int)xywh[1]; w = (int)xywh[2]; h = (int)xywh[3];
697: if (w == PETSC_DECIDE || w == PETSC_DEFAULT) w = 300;
698: if (h == PETSC_DECIDE || h == PETSC_DEFAULT) h = 300;
699: draw->x = x; draw->y = y; draw->w = w; draw->h = h;
701: if (draw->x == PETSC_DECIDE || draw->y == PETSC_DECIDE) {
702: /*
703: PETSc tries to place windows starting in the upper left corner
704: and moving across to the right.
706: +0,0-------------------------------------------+
707: | Region used so far +xavailable,yavailable |
708: | | |
709: | | |
710: +--------------------- +ybottom |
711: | |
712: | |
713: +----------------------------------------------+xmax,ymax
715: */
716: /* First: can we add it to the right? */
717: if (xavailable + w + 10 <= xmax) {
718: x = xavailable;
719: y = yavailable;
720: ybottom = PetscMax(ybottom,y + h + 30);
721: } else {
722: /* No, so add it below on the left */
723: xavailable = x = 0;
724: yavailable = y = ybottom;
725: ybottom = ybottom + h + 30;
726: }
727: }
728: /* update available region */
729: xavailable = PetscMax(xavailable,x + w + 10);
730: if (xavailable >= xmax) {
731: xavailable = 0;
732: yavailable = yavailable + h + 30;
733: ybottom = yavailable;
734: }
735: if (yavailable >= ymax) {
736: y = 0;
737: yavailable = 0;
738: ybottom = 0;
739: }
741: } /* endif (!dvirtual) */
743: MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank);
746: PetscNewLog(draw,&Xwin);
747: PetscMemcpy(draw->ops,&DvOps,sizeof(DvOps));
748: draw->data = (void*)Xwin;
750: PetscDrawXiInit(Xwin,draw->display);
751: if (!dvirtual) {
752: Xwin->x = x; Xwin->y = y;
753: Xwin->w = w; Xwin->h = h;
754: if (rank == 0) PetscDrawXiQuickWindow(Xwin,draw->title,x,y,w,h);
755: MPI_Bcast(&Xwin->win,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw));
756: if (rank) PetscDrawXiQuickWindowFromWindow(Xwin,Xwin->win);
757: } else {
758: Xwin->x = 0; Xwin->y = 0;
759: Xwin->w = w; Xwin->h = h;
760: PetscDrawXiColormap(Xwin);
761: if (rank == 0) PetscDrawXiQuickPixmap(Xwin);
762: MPI_Bcast(&Xwin->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw));
763: }
764: PetscDrawXiGetGeometry(Xwin,&Xwin->x,&Xwin->y,&Xwin->w,&Xwin->h);
765: draw->x = Xwin->x; draw->y = Xwin->y;
766: draw->w = Xwin->w; draw->h = Xwin->h;
768: PetscOptionsGetBool(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_double_buffer",&doublebuffer,NULL);
769: if (doublebuffer) PetscDrawSetDoubleBuffer(draw);
770: return 0;
771: }