1 /* 2 Defines the operations for the X PetscDraw implementation. 3 */ 4 5 #include <../src/sys/classes/draw/impls/x/ximpl.h> /*I "petscsys.h" I*/ 6 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))))) 12 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)) 15 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; 21 PetscErrorCode ierr; 22 23 PetscFunctionBegin; 24 xa = (int)(xl*xmax); ya = ymax - (int)(yr*ymax); 25 xb = (int)(xr*xmax); yb = ymax - (int)(yl*ymax); 26 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 27 box.x = (short)xa; box.width = (unsigned short)(xb + 1 - xa); 28 box.y = (short)ya; box.height = (unsigned short)(yb + 1 - ya); 29 XSetClipRectangles(XiWin->disp,XiWin->gc.set,0,0,&box,1,Unsorted); 30 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 31 PetscFunctionReturn(0); 32 } 33 34 static PetscErrorCode PetscDrawCoordinateToPixel_X(PetscDraw draw,PetscReal x,PetscReal y,int *i,int *j) 35 { 36 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 37 38 PetscFunctionBegin; 39 *i = XTRANS(draw,XiWin,x); 40 *j = YTRANS(draw,XiWin,y); 41 PetscFunctionReturn(0); 42 } 43 44 static PetscErrorCode PetscDrawPixelToCoordinate_X(PetscDraw draw,int i,int j,PetscReal *x,PetscReal *y) 45 { 46 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 47 48 PetscFunctionBegin; 49 *x = ITRANS(draw,XiWin,i); 50 *y = JTRANS(draw,XiWin,j); 51 PetscFunctionReturn(0); 52 } 53 54 static PetscErrorCode PetscDrawPoint_X(PetscDraw draw,PetscReal x,PetscReal y,int c) 55 { 56 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 57 int xx,yy,i,j; 58 59 PetscFunctionBegin; 60 xx = XTRANS(draw,XiWin,x); 61 yy = YTRANS(draw,XiWin,y); 62 PetscDrawXiSetColor(XiWin,c); 63 for (i=-1; i<2; i++) { 64 for (j=-1; j<2; j++) { 65 XDrawPoint(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xx+i,yy+j); 66 } 67 } 68 PetscFunctionReturn(0); 69 } 70 71 static PetscErrorCode PetscDrawPointPixel_X(PetscDraw draw,int x,int y,int c) 72 { 73 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 74 75 PetscFunctionBegin; 76 PetscDrawXiSetColor(XiWin,c); 77 XDrawPoint(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x,y); 78 PetscFunctionReturn(0); 79 } 80 81 static PetscErrorCode PetscDrawLine_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl) 82 { 83 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 84 int x_1,y_1,x_2,y_2; 85 86 PetscFunctionBegin; 87 PetscDrawXiSetColor(XiWin,cl); 88 x_1 = XTRANS(draw,XiWin,xl); x_2 = XTRANS(draw,XiWin,xr); 89 y_1 = YTRANS(draw,XiWin,yl); y_2 = YTRANS(draw,XiWin,yr); 90 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_1,y_1,x_2,y_2); 91 PetscFunctionReturn(0); 92 } 93 94 static PetscErrorCode PetscDrawArrow_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int cl) 95 { 96 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 97 int x_1,y_1,x_2,y_2; 98 99 PetscFunctionBegin; 100 PetscDrawXiSetColor(XiWin,cl); 101 x_1 = XTRANS(draw,XiWin,xl); x_2 = XTRANS(draw,XiWin,xr); 102 y_1 = YTRANS(draw,XiWin,yl); y_2 = YTRANS(draw,XiWin,yr); 103 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_1,y_1,x_2,y_2); 104 if (x_1 == x_2 && y_1 == y_2) PetscFunctionReturn(0); 105 if (x_1 == x_2 && PetscAbs(y_1 - y_2) > 7) { 106 if (y_2 > y_1) { 107 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2-3,y_2-3); 108 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2-3); 109 } else { 110 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2-3,y_2+3); 111 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2+3); 112 } 113 } 114 if (y_1 == y_2 && PetscAbs(x_1 - x_2) > 7) { 115 if (x_2 > x_1) { 116 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2-3,y_2-3,x_2,y_2); 117 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2-3,y_2+3,x_2,y_2); 118 } else { 119 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2-3); 120 XDrawLine(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x_2,y_2,x_2+3,y_2+3); 121 } 122 } 123 PetscFunctionReturn(0); 124 } 125 126 static PetscErrorCode PetscDrawRectangle_X(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr,int c1,int c2,int c3,int c4) 127 { 128 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 129 int x,y,w,h,c = (c1 + c2 + c3 + c4)/4; 130 131 PetscFunctionBegin; 132 PetscDrawXiSetColor(XiWin,c); 133 x = XTRANS(draw,XiWin,xl); w = XTRANS(draw,XiWin,xr) + 1 - x; if (w <= 0) w = 1; 134 y = YTRANS(draw,XiWin,yr); h = YTRANS(draw,XiWin,yl) + 1 - y; if (h <= 0) h = 1; 135 XFillRectangle(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,x,y,w,h); 136 PetscFunctionReturn(0); 137 } 138 139 static PetscErrorCode PetscDrawEllipse_X(PetscDraw draw,PetscReal x,PetscReal y,PetscReal a,PetscReal b,int c) 140 { 141 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 142 int xA,yA,w,h; 143 144 PetscFunctionBegin; 145 PetscDrawXiSetColor(XiWin, c); 146 xA = XTRANS(draw,XiWin, x - a/2); w = XTRANS(draw,XiWin, x + a/2) + 1 - xA; w = PetscAbs(w); 147 yA = YTRANS(draw,XiWin, y + b/2); h = YTRANS(draw,XiWin, y - b/2) + 1 - yA; h = PetscAbs(h); 148 XFillArc(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xA,yA,w,h,0,360*64); 149 PetscFunctionReturn(0); 150 } 151 152 PETSC_INTERN PetscErrorCode PetscDrawInterpolatedTriangle_X(PetscDraw_X*,int,int,int,int,int,int,int,int,int); 153 154 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) 155 { 156 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 157 158 PetscFunctionBegin; 159 if (c1 == c2 && c2 == c3) { 160 XPoint pt[3]; 161 PetscDrawXiSetColor(XiWin,c1); 162 pt[0].x = XTRANS(draw,XiWin,X1); 163 pt[0].y = YTRANS(draw,XiWin,Y_1); 164 pt[1].x = XTRANS(draw,XiWin,X2); 165 pt[1].y = YTRANS(draw,XiWin,Y2); 166 pt[2].x = XTRANS(draw,XiWin,X3); 167 pt[2].y = YTRANS(draw,XiWin,Y3); 168 XFillPolygon(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,pt,3,Convex,CoordModeOrigin); 169 } else { 170 int x1,y_1,x2,y2,x3,y3; 171 x1 = XTRANS(draw,XiWin,X1); 172 y_1 = YTRANS(draw,XiWin,Y_1); 173 x2 = XTRANS(draw,XiWin,X2); 174 y2 = YTRANS(draw,XiWin,Y2); 175 x3 = XTRANS(draw,XiWin,X3); 176 y3 = YTRANS(draw,XiWin,Y3); 177 PetscCall(PetscDrawInterpolatedTriangle_X(XiWin,x1,y_1,c1,x2,y2,c2,x3,y3,c3)); 178 } 179 PetscFunctionReturn(0); 180 } 181 182 static PetscErrorCode PetscDrawStringSetSize_X(PetscDraw draw,PetscReal x,PetscReal y) 183 { 184 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 185 int w,h; 186 187 PetscFunctionBegin; 188 w = (int)((XiWin->w)*x*(draw->port_xr - draw->port_xl)/(draw->coor_xr - draw->coor_xl)); 189 h = (int)((XiWin->h)*y*(draw->port_yr - draw->port_yl)/(draw->coor_yr - draw->coor_yl)); 190 PetscCall(PetscFree(XiWin->font)); 191 PetscCall(PetscDrawXiFontFixed(XiWin,w,h,&XiWin->font)); 192 PetscFunctionReturn(0); 193 } 194 195 static PetscErrorCode PetscDrawStringGetSize_X(PetscDraw draw,PetscReal *x,PetscReal *y) 196 { 197 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 198 PetscReal w,h; 199 200 PetscFunctionBegin; 201 w = XiWin->font->font_w; h = XiWin->font->font_h; 202 if (x) *x = w*(draw->coor_xr - draw->coor_xl)/((XiWin->w)*(draw->port_xr - draw->port_xl)); 203 if (y) *y = h*(draw->coor_yr - draw->coor_yl)/((XiWin->h)*(draw->port_yr - draw->port_yl)); 204 PetscFunctionReturn(0); 205 } 206 207 static PetscErrorCode PetscDrawString_X(PetscDraw draw,PetscReal x,PetscReal y,int c,const char chrs[]) 208 { 209 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 210 int xx,yy,descent = XiWin->font->font_descent; 211 size_t len; 212 char *substr; 213 PetscToken token; 214 215 PetscFunctionBegin; 216 xx = XTRANS(draw,XiWin,x); 217 yy = YTRANS(draw,XiWin,y); 218 PetscDrawXiSetColor(XiWin,c); 219 220 PetscCall(PetscTokenCreate(chrs,'\n',&token)); 221 PetscCall(PetscTokenFind(token,&substr)); 222 while (substr) { 223 PetscCall(PetscStrlen(substr,&len)); 224 XDrawString(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xx,yy-descent,substr,len); 225 yy += XiWin->font->font_h; 226 PetscCall(PetscTokenFind(token,&substr)); 227 } 228 PetscCall(PetscTokenDestroy(&token)); 229 PetscFunctionReturn(0); 230 } 231 232 static PetscErrorCode PetscDrawStringVertical_X(PetscDraw draw,PetscReal x,PetscReal y,int c,const char text[]) 233 { 234 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 235 int xx,yy,offset = XiWin->font->font_h - XiWin->font->font_descent; 236 char chr[2] = {0, 0}; 237 238 PetscFunctionBegin; 239 xx = XTRANS(draw,XiWin,x); 240 yy = YTRANS(draw,XiWin,y); 241 PetscDrawXiSetColor(XiWin,c); 242 while ((chr[0] = *text++)) { 243 XDrawString(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xx,yy+offset,chr,1); 244 yy += XiWin->font->font_h; 245 } 246 PetscFunctionReturn(0); 247 } 248 249 static PetscErrorCode PetscDrawFlush_X(PetscDraw draw) 250 { 251 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 252 PetscMPIInt rank; 253 PetscErrorCode ierr; 254 255 PetscFunctionBegin; 256 /* make sure the X server processed requests from all processes */ 257 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 258 XSync(XiWin->disp,False); 259 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 260 PetscCallMPI(MPI_Barrier(PetscObjectComm((PetscObject)draw))); 261 262 /* transfer pixmap contents to window (only the first process does this) */ 263 if (XiWin->drw && XiWin->win) { 264 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 265 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 266 if (rank == 0) XCopyArea(XiWin->disp,XiWin->drw,XiWin->win,XiWin->gc.set,0,0,XiWin->w,XiWin->h,0,0); 267 if (rank == 0) XSync(XiWin->disp,False); 268 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 269 PetscCallMPI(MPI_Barrier(PetscObjectComm((PetscObject)draw))); 270 } 271 PetscFunctionReturn(0); 272 } 273 274 static PetscErrorCode PetscDrawClear_X(PetscDraw draw) 275 { 276 PetscDraw_X *XiWin = (PetscDraw_X*)draw->data; 277 int xmax = XiWin->w-1, ymax = XiWin->h-1; 278 PetscReal xl = draw->port_xl, yl = draw->port_yl; 279 PetscReal xr = draw->port_xr, yr = draw->port_yr; 280 PetscMPIInt rank; 281 PetscErrorCode ierr; 282 283 PetscFunctionBegin; 284 /* make sure the X server processed requests from all processes */ 285 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 286 XSync(XiWin->disp,False); 287 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 288 PetscCallMPI(MPI_Barrier(PetscObjectComm((PetscObject)draw))); 289 290 /* only the first process handles the clearing business */ 291 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 292 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 293 if (rank == 0) { 294 int xa = (int)(xl*xmax), ya = ymax - (int)(yr*ymax); 295 int xb = (int)(xr*xmax), yb = ymax - (int)(yl*ymax); 296 unsigned int w = (unsigned int)(xb + 1 - xa); 297 unsigned int h = (unsigned int)(yb + 1 - ya); 298 PetscDrawXiSetPixVal(XiWin,XiWin->background); 299 XFillRectangle(XiWin->disp,PetscDrawXiDrawable(XiWin),XiWin->gc.set,xa,ya,w,h); 300 XSync(XiWin->disp,False); 301 } 302 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 303 PetscCallMPI(MPI_Barrier(PetscObjectComm((PetscObject)draw))); 304 PetscFunctionReturn(0); 305 } 306 307 static PetscErrorCode PetscDrawSetDoubleBuffer_X(PetscDraw draw) 308 { 309 PetscDraw_X *win = (PetscDraw_X*)draw->data; 310 PetscMPIInt rank; 311 PetscErrorCode ierr; 312 313 PetscFunctionBegin; 314 if (win->drw) PetscFunctionReturn(0); 315 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 316 317 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 318 if (rank == 0) PetscCall(PetscDrawXiQuickPixmap(win)); 319 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 320 PetscCallMPI(MPI_Bcast(&win->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw))); 321 PetscFunctionReturn(0); 322 } 323 324 static PetscErrorCode PetscDrawGetPopup_X(PetscDraw draw,PetscDraw *popup) 325 { 326 PetscDraw_X *win = (PetscDraw_X*)draw->data; 327 PetscBool flg = PETSC_TRUE; 328 329 PetscFunctionBegin; 330 PetscCall(PetscOptionsGetBool(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_popup",&flg,NULL)); 331 if (!flg || !win->win) {*popup = NULL; PetscFunctionReturn(0);} 332 333 PetscCall(PetscDrawCreate(PetscObjectComm((PetscObject)draw),draw->display,NULL,win->x,win->y+win->h+10,220,220,popup)); 334 PetscCall(PetscObjectSetOptionsPrefix((PetscObject)*popup,"popup_")); 335 PetscCall(PetscObjectAppendOptionsPrefix((PetscObject)*popup,((PetscObject)draw)->prefix)); 336 PetscCall(PetscDrawSetType(*popup,PETSC_DRAW_X)); 337 draw->popup = *popup; 338 PetscFunctionReturn(0); 339 } 340 341 static PetscErrorCode PetscDrawSetTitle_X(PetscDraw draw,const char title[]) 342 { 343 PetscDraw_X *win = (PetscDraw_X*)draw->data; 344 PetscMPIInt rank; 345 PetscErrorCode ierr; 346 347 PetscFunctionBegin; 348 if (!win->win) PetscFunctionReturn(0); 349 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 350 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 351 if (rank == 0) { 352 size_t len; 353 XTextProperty prop; 354 PetscCall(PetscStrlen(title,&len)); 355 XGetWMName(win->disp,win->win,&prop); 356 XFree((void*)prop.value); 357 prop.value = (unsigned char*)title; 358 prop.nitems = (long)len; 359 XSetWMName(win->disp,win->win,&prop); 360 } 361 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 362 PetscFunctionReturn(0); 363 } 364 365 static PetscErrorCode PetscDrawCheckResizedWindow_X(PetscDraw draw) 366 { 367 PetscDraw_X *win = (PetscDraw_X*)draw->data; 368 int xywh[4]; 369 PetscMPIInt rank; 370 PetscErrorCode ierr; 371 372 PetscFunctionBegin; 373 if (!win->win) PetscFunctionReturn(0); 374 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 375 376 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 377 if (rank == 0) PetscCall(PetscDrawXiGetGeometry(win,xywh,xywh+1,xywh+2,xywh+3)); 378 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 379 PetscCallMPI(MPI_Bcast(xywh,4,MPI_INT,0,PetscObjectComm((PetscObject)draw))); 380 381 /* record new window position */ 382 draw->x = win->x = xywh[0]; 383 draw->y = win->y = xywh[1]; 384 if (xywh[2] == win->w && xywh[3] == win->h) PetscFunctionReturn(0); 385 /* record new window sizes */ 386 draw->w = win->w = xywh[2]; 387 draw->h = win->h = xywh[3]; 388 389 /* recreate pixmap (only first processor does this) */ 390 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 391 if (rank == 0 && win->drw) PetscCall(PetscDrawXiQuickPixmap(win)); 392 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 393 PetscCallMPI(MPI_Bcast(&win->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw))); 394 /* reset the clipping */ 395 PetscCall(PetscDrawSetViewport_X(draw,draw->port_xl,draw->port_yl,draw->port_xr,draw->port_yr)); 396 PetscFunctionReturn(0); 397 } 398 399 static PetscErrorCode PetscDrawResizeWindow_X(PetscDraw draw,int w,int h) 400 { 401 PetscDraw_X *win = (PetscDraw_X*)draw->data; 402 PetscMPIInt rank; 403 PetscErrorCode ierr; 404 405 PetscFunctionBegin; 406 if (w == win->w && h == win->h) PetscFunctionReturn(0); 407 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 408 409 if (win->win) { 410 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 411 if (rank == 0) PetscCall(PetscDrawXiResizeWindow(win,w,h)); 412 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 413 PetscCall(PetscDrawCheckResizedWindow_X(draw)); 414 } else if (win->drw) { 415 draw->w = win->w = w; draw->h = win->h = h; 416 /* recreate pixmap (only first processor does this) */ 417 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 418 if (rank == 0) PetscCall(PetscDrawXiQuickPixmap(win)); 419 PetscCallMPI(MPI_Bcast(&win->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw))); 420 /* reset the clipping */ 421 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 422 PetscCall(PetscDrawSetViewport_X(draw,draw->port_xl,draw->port_yl,draw->port_xr,draw->port_yr)); 423 } 424 PetscFunctionReturn(0); 425 } 426 427 #include <X11/cursorfont.h> 428 429 static PetscErrorCode PetscDrawGetMouseButton_X(PetscDraw draw,PetscDrawButton *button,PetscReal *x_user,PetscReal *y_user,PetscReal *x_phys,PetscReal *y_phys) 430 { 431 PetscDraw_X *win = (PetscDraw_X*)draw->data; 432 Cursor cursor; 433 XEvent report; 434 Window root,child; 435 int root_x,root_y,px=0,py=0; 436 unsigned int w,h,border,depth; 437 unsigned int keys_button; 438 PetscMPIInt rank; 439 PetscReal xx,yy; 440 PetscErrorCode ierr; 441 442 PetscFunctionBegin; 443 *button = PETSC_BUTTON_NONE; 444 if (!win->win) PetscFunctionReturn(0); 445 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 446 447 ierr = PetscDrawCollectiveBegin(draw);PetscCall(ierr); 448 if (rank) goto finally; 449 450 /* change cursor to indicate input */ 451 cursor = XCreateFontCursor(win->disp,XC_hand2); PetscCheck(cursor,PETSC_COMM_SELF,PETSC_ERR_LIB,"Unable to create X cursor"); 452 XDefineCursor(win->disp,win->win,cursor); 453 /* wait for mouse button events */ 454 XSelectInput(win->disp,win->win,ButtonPressMask|ButtonReleaseMask); 455 while (XCheckTypedEvent(win->disp,ButtonPress,&report)); 456 XMaskEvent(win->disp,ButtonReleaseMask,&report); 457 /* get mouse pointer coordinates */ 458 XQueryPointer(win->disp,report.xmotion.window,&root,&child,&root_x,&root_y,&px,&py,&keys_button); 459 /* the user may resize the window before pressing the mouse button */ 460 XGetGeometry(win->disp,win->win,&root,&root_x,&root_y,&w,&h,&border,&depth); 461 /* cleanup input event handler and cursor */ 462 XSelectInput(win->disp,win->win,NoEventMask); 463 XUndefineCursor(win->disp,win->win); 464 XFreeCursor(win->disp, cursor); 465 XSync(win->disp,False); 466 467 switch (report.xbutton.button) { 468 case Button1: *button = PETSC_BUTTON_LEFT; break; 469 case Button2: *button = PETSC_BUTTON_CENTER; break; 470 case Button3: *button = PETSC_BUTTON_RIGHT; break; 471 case Button4: *button = PETSC_BUTTON_WHEEL_UP; break; 472 case Button5: *button = PETSC_BUTTON_WHEEL_DOWN; break; 473 } 474 if (report.xbutton.state & ShiftMask) { 475 switch (report.xbutton.button) { 476 case Button1: *button = PETSC_BUTTON_LEFT_SHIFT; break; 477 case Button2: *button = PETSC_BUTTON_CENTER_SHIFT; break; 478 case Button3: *button = PETSC_BUTTON_RIGHT_SHIFT; break; 479 } 480 } 481 xx = ((PetscReal)px)/w; 482 yy = 1 - ((PetscReal)py)/h; 483 if (x_user) *x_user = draw->coor_xl + (xx - draw->port_xl)*(draw->coor_xr - draw->coor_xl)/(draw->port_xr - draw->port_xl); 484 if (y_user) *y_user = draw->coor_yl + (yy - draw->port_yl)*(draw->coor_yr - draw->coor_yl)/(draw->port_yr - draw->port_yl); 485 if (x_phys) *x_phys = xx; 486 if (y_phys) *y_phys = yy; 487 488 finally: 489 ierr = PetscDrawCollectiveEnd(draw);PetscCall(ierr); 490 PetscCall(PetscDrawCheckResizedWindow_X(draw)); 491 PetscFunctionReturn(0); 492 } 493 494 static PetscErrorCode PetscDrawPause_X(PetscDraw draw) 495 { 496 PetscDraw_X *win = (PetscDraw_X*)draw->data; 497 498 PetscFunctionBegin; 499 if (!win->win) PetscFunctionReturn(0); 500 if (draw->pause > 0) PetscSleep(draw->pause); 501 else if (draw->pause == -1) { 502 PetscDrawButton button = PETSC_BUTTON_NONE; 503 PetscCall(PetscDrawGetMouseButton(draw,&button,NULL,NULL,NULL,NULL)); 504 if (button == PETSC_BUTTON_CENTER) draw->pause = 0; 505 } 506 PetscFunctionReturn(0); 507 } 508 509 static PetscErrorCode PetscDrawDestroy_X(PetscDraw draw) 510 { 511 PetscDraw_X *win = (PetscDraw_X*)draw->data; 512 513 PetscFunctionBegin; 514 PetscCall(PetscDrawDestroy(&draw->popup)); 515 PetscCall(PetscDrawXiClose(win)); 516 PetscCall(PetscFree(draw->data)); 517 PetscFunctionReturn(0); 518 } 519 520 static PetscErrorCode PetscDrawGetSingleton_X(PetscDraw,PetscDraw*); 521 static PetscErrorCode PetscDrawRestoreSingleton_X(PetscDraw,PetscDraw*); 522 PETSC_INTERN PetscErrorCode PetscDrawGetImage_X(PetscDraw,unsigned char[][3],unsigned int*,unsigned int*,unsigned char*[]); 523 524 static struct _PetscDrawOps DvOps = { PetscDrawSetDoubleBuffer_X, 525 PetscDrawFlush_X, 526 PetscDrawLine_X, 527 NULL, 528 NULL, 529 PetscDrawPoint_X, 530 NULL, 531 PetscDrawString_X, 532 PetscDrawStringVertical_X, 533 PetscDrawStringSetSize_X, 534 PetscDrawStringGetSize_X, 535 PetscDrawSetViewport_X, 536 PetscDrawClear_X, 537 PetscDrawRectangle_X, 538 PetscDrawTriangle_X, 539 PetscDrawEllipse_X, 540 PetscDrawGetMouseButton_X, 541 PetscDrawPause_X, 542 NULL, 543 NULL, 544 PetscDrawGetPopup_X, 545 PetscDrawSetTitle_X, 546 PetscDrawCheckResizedWindow_X, 547 PetscDrawResizeWindow_X, 548 PetscDrawDestroy_X, 549 NULL, 550 PetscDrawGetSingleton_X, 551 PetscDrawRestoreSingleton_X, 552 NULL, 553 PetscDrawGetImage_X, 554 NULL, 555 PetscDrawArrow_X, 556 PetscDrawCoordinateToPixel_X, 557 PetscDrawPixelToCoordinate_X, 558 PetscDrawPointPixel_X, 559 NULL}; 560 561 static PetscErrorCode PetscDrawGetSingleton_X(PetscDraw draw,PetscDraw *sdraw) 562 { 563 PetscDraw_X *Xwin = (PetscDraw_X*)draw->data,*sXwin; 564 565 PetscFunctionBegin; 566 PetscCall(PetscDrawCreate(PETSC_COMM_SELF,draw->display,draw->title,draw->x,draw->y,draw->w,draw->h,sdraw)); 567 PetscCall(PetscObjectChangeTypeName((PetscObject)*sdraw,PETSC_DRAW_X)); 568 PetscCall(PetscMemcpy((*sdraw)->ops,&DvOps,sizeof(DvOps))); 569 570 if (draw->popup) PetscCall(PetscDrawGetSingleton(draw->popup,&(*sdraw)->popup)); 571 (*sdraw)->pause = draw->pause; 572 (*sdraw)->coor_xl = draw->coor_xl; 573 (*sdraw)->coor_xr = draw->coor_xr; 574 (*sdraw)->coor_yl = draw->coor_yl; 575 (*sdraw)->coor_yr = draw->coor_yr; 576 (*sdraw)->port_xl = draw->port_xl; 577 (*sdraw)->port_xr = draw->port_xr; 578 (*sdraw)->port_yl = draw->port_yl; 579 (*sdraw)->port_yr = draw->port_yr; 580 581 /* share drawables (windows and/or pixmap) from the parent draw */ 582 PetscCall(PetscNewLog(*sdraw,&sXwin)); 583 (*sdraw)->data = (void*)sXwin; 584 PetscCall(PetscDrawXiInit(sXwin,draw->display)); 585 if (Xwin->win) { 586 PetscCall(PetscDrawXiQuickWindowFromWindow(sXwin,Xwin->win)); 587 sXwin->drw = Xwin->drw; /* XXX If the window is ever resized, this is wrong! */ 588 } else if (Xwin->drw) { 589 PetscCall(PetscDrawXiColormap(sXwin)); 590 sXwin->drw = Xwin->drw; 591 } 592 PetscCall(PetscDrawXiGetGeometry(sXwin,&sXwin->x,&sXwin->y,&sXwin->w,&sXwin->h)); 593 (*sdraw)->x = sXwin->x; (*sdraw)->y = sXwin->y; 594 (*sdraw)->w = sXwin->w; (*sdraw)->h = sXwin->h; 595 PetscFunctionReturn(0); 596 } 597 598 static PetscErrorCode PetscDrawRestoreSingleton_X(PetscDraw draw,PetscDraw *sdraw) 599 { 600 PetscFunctionBegin; 601 if (draw->popup && (*sdraw)->popup) { 602 PetscBool isdrawx; 603 PetscDraw_X *pXwin = (PetscDraw_X*)draw->popup->data; 604 PetscDraw_X *sXwin = (PetscDraw_X*)(*sdraw)->popup->data; 605 PetscCall(PetscObjectTypeCompare((PetscObject)draw->popup,PETSC_DRAW_X,&isdrawx)); 606 if (!isdrawx) goto finally; 607 PetscCall(PetscObjectTypeCompare((PetscObject)(*sdraw)->popup,PETSC_DRAW_X,&isdrawx)); 608 if (!isdrawx) goto finally; 609 if (sXwin->win == pXwin->win) { 610 PetscCall(PetscDrawRestoreSingleton(draw->popup,&(*sdraw)->popup)); 611 } 612 } 613 finally: 614 PetscCall(PetscDrawDestroy(sdraw)); 615 PetscFunctionReturn(0); 616 } 617 618 static PetscErrorCode PetscDrawXGetDisplaySize_Private(const char name[],int *width,int *height,PetscBool *has_display) 619 { 620 Display *display; 621 622 PetscFunctionBegin; 623 display = XOpenDisplay(name); 624 if (!display) { 625 *width = *height = 0; 626 (*PetscErrorPrintf)("Unable to open display on %s\n\ 627 Make sure your COMPUTE NODES are authorized to connect\n\ 628 to this X server and either your DISPLAY variable\n\ 629 is set or you use the -display name option\n",name); 630 *has_display = PETSC_FALSE; 631 PetscFunctionReturn(0); 632 } 633 *has_display = PETSC_TRUE; 634 *width = (int)DisplayWidth(display,DefaultScreen(display)); 635 *height = (int)DisplayHeight(display,DefaultScreen(display)); 636 XCloseDisplay(display); 637 PetscFunctionReturn(0); 638 } 639 640 /*MC 641 PETSC_DRAW_X - PETSc graphics device that uses either X windows or its virtual version Xvfb 642 643 Options Database Keys: 644 + -display <display> - sets the display to use 645 . -x_virtual - forces use of a X virtual display Xvfb that will not display anything but -draw_save will still work. 646 Xvfb is automatically started up in PetscSetDisplay() with this option 647 . -draw_size w,h - percentage of screen (either 1, .5, .3, .25), or size in pixels 648 . -geometry x,y,w,h - set location and size in pixels 649 . -draw_virtual - do not open a window (draw on a pixmap), -draw_save will still work 650 - -draw_double_buffer - avoid window flickering (draw on pixmap and flush to window) 651 652 Level: beginner 653 654 .seealso: PetscDrawOpenX(), PetscDrawSetDisplay(), PetscDrawSetFromOptions() 655 656 M*/ 657 658 PETSC_EXTERN PetscErrorCode PetscDrawCreate_X(PetscDraw draw) 659 { 660 PetscDraw_X *Xwin; 661 PetscMPIInt rank; 662 int x = draw->x,y = draw->y,w = draw->w,h = draw->h; 663 static int xavailable = 0,yavailable = 0,ybottom = 0,xmax = 0,ymax = 0; 664 PetscBool set,dvirtual = PETSC_FALSE,doublebuffer = PETSC_TRUE,has_display; 665 PetscInt xywh[4],osize = 4,nsizes=2; 666 PetscReal sizes[2] = {.3,.3}; 667 static size_t DISPLAY_LENGTH = 265; 668 669 PetscFunctionBegin; 670 /* get the display variable */ 671 if (!draw->display) { 672 PetscCall(PetscMalloc1(DISPLAY_LENGTH,&draw->display)); 673 PetscCall(PetscGetDisplay(draw->display,DISPLAY_LENGTH)); 674 } 675 676 /* initialize the display size */ 677 if (!xmax) { 678 PetscCall(PetscDrawXGetDisplaySize_Private(draw->display,&xmax,&ymax,&has_display)); 679 /* if some processors fail on this and others succed then this is a problem ! */ 680 if (!has_display) { 681 (*PetscErrorPrintf)("PETSc unable to use X windows\nproceeding without graphics\n"); 682 PetscCall(PetscDrawSetType(draw,PETSC_DRAW_NULL)); 683 PetscFunctionReturn(0); 684 } 685 } 686 687 /* allow user to set size of drawable */ 688 PetscCall(PetscOptionsGetRealArray(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_size",sizes,&nsizes,&set)); 689 if (set && nsizes == 1 && sizes[0] > 1.0) sizes[1] = sizes[0]; 690 if (set) { 691 if (sizes[0] > 1.0) w = (int)sizes[0]; 692 else if (sizes[0] == 1.0) w = PETSC_DRAW_FULL_SIZE; 693 else if (sizes[0] == .5) w = PETSC_DRAW_HALF_SIZE; 694 else if (sizes[0] == .3) w = PETSC_DRAW_THIRD_SIZE; 695 else if (sizes[0] == .25) w = PETSC_DRAW_QUARTER_SIZE; 696 if (sizes[1] > 1.0) h = (int)sizes[1]; 697 else if (sizes[1] == 1.0) h = PETSC_DRAW_FULL_SIZE; 698 else if (sizes[1] == .5) h = PETSC_DRAW_HALF_SIZE; 699 else if (sizes[1] == .3) h = PETSC_DRAW_THIRD_SIZE; 700 else if (sizes[1] == .25) h = PETSC_DRAW_QUARTER_SIZE; 701 } 702 if (w == PETSC_DECIDE || w == PETSC_DEFAULT) w = draw->w = 300; 703 if (h == PETSC_DECIDE || h == PETSC_DEFAULT) h = draw->h = 300; 704 switch (w) { 705 case PETSC_DRAW_FULL_SIZE: w = draw->w = (xmax - 10); break; 706 case PETSC_DRAW_HALF_SIZE: w = draw->w = (xmax - 20)/2; break; 707 case PETSC_DRAW_THIRD_SIZE: w = draw->w = (xmax - 30)/3; break; 708 case PETSC_DRAW_QUARTER_SIZE: w = draw->w = (xmax - 40)/4; break; 709 } 710 switch (h) { 711 case PETSC_DRAW_FULL_SIZE: h = draw->h = (ymax - 10); break; 712 case PETSC_DRAW_HALF_SIZE: h = draw->h = (ymax - 20)/2; break; 713 case PETSC_DRAW_THIRD_SIZE: h = draw->h = (ymax - 30)/3; break; 714 case PETSC_DRAW_QUARTER_SIZE: h = draw->h = (ymax - 40)/4; break; 715 } 716 717 PetscCall(PetscOptionsGetBool(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_virtual",&dvirtual,NULL)); 718 719 if (!dvirtual) { 720 721 /* allow user to set location and size of window */ 722 xywh[0] = x; xywh[1] = y; xywh[2] = w; xywh[3] = h; 723 PetscCall(PetscOptionsGetIntArray(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-geometry",xywh,&osize,NULL)); 724 x = (int)xywh[0]; y = (int)xywh[1]; w = (int)xywh[2]; h = (int)xywh[3]; 725 if (w == PETSC_DECIDE || w == PETSC_DEFAULT) w = 300; 726 if (h == PETSC_DECIDE || h == PETSC_DEFAULT) h = 300; 727 draw->x = x; draw->y = y; draw->w = w; draw->h = h; 728 729 if (draw->x == PETSC_DECIDE || draw->y == PETSC_DECIDE) { 730 /* 731 PETSc tries to place windows starting in the upper left corner 732 and moving across to the right. 733 734 +0,0-------------------------------------------+ 735 | Region used so far +xavailable,yavailable | 736 | | | 737 | | | 738 +--------------------- +ybottom | 739 | | 740 | | 741 +----------------------------------------------+xmax,ymax 742 743 */ 744 /* First: can we add it to the right? */ 745 if (xavailable + w + 10 <= xmax) { 746 x = xavailable; 747 y = yavailable; 748 ybottom = PetscMax(ybottom,y + h + 30); 749 } else { 750 /* No, so add it below on the left */ 751 xavailable = x = 0; 752 yavailable = y = ybottom; 753 ybottom = ybottom + h + 30; 754 } 755 } 756 /* update available region */ 757 xavailable = PetscMax(xavailable,x + w + 10); 758 if (xavailable >= xmax) { 759 xavailable = 0; 760 yavailable = yavailable + h + 30; 761 ybottom = yavailable; 762 } 763 if (yavailable >= ymax) { 764 y = 0; 765 yavailable = 0; 766 ybottom = 0; 767 } 768 769 } /* endif (!dvirtual) */ 770 771 PetscCallMPI(MPI_Comm_rank(PetscObjectComm((PetscObject)draw),&rank)); 772 PetscCheckFalse(rank == 0 && (w <= 0 || h <= 0),PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Negative window width or height"); 773 774 PetscCall(PetscNewLog(draw,&Xwin)); 775 PetscCall(PetscMemcpy(draw->ops,&DvOps,sizeof(DvOps))); 776 draw->data = (void*)Xwin; 777 778 PetscCall(PetscDrawXiInit(Xwin,draw->display)); 779 if (!dvirtual) { 780 Xwin->x = x; Xwin->y = y; 781 Xwin->w = w; Xwin->h = h; 782 if (rank == 0) PetscCall(PetscDrawXiQuickWindow(Xwin,draw->title,x,y,w,h)); 783 PetscCallMPI(MPI_Bcast(&Xwin->win,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw))); 784 if (rank) PetscCall(PetscDrawXiQuickWindowFromWindow(Xwin,Xwin->win)); 785 } else { 786 Xwin->x = 0; Xwin->y = 0; 787 Xwin->w = w; Xwin->h = h; 788 PetscCall(PetscDrawXiColormap(Xwin)); 789 if (rank == 0) PetscCall(PetscDrawXiQuickPixmap(Xwin)); 790 PetscCallMPI(MPI_Bcast(&Xwin->drw,1,MPI_UNSIGNED_LONG,0,PetscObjectComm((PetscObject)draw))); 791 } 792 PetscCall(PetscDrawXiGetGeometry(Xwin,&Xwin->x,&Xwin->y,&Xwin->w,&Xwin->h)); 793 draw->x = Xwin->x; draw->y = Xwin->y; 794 draw->w = Xwin->w; draw->h = Xwin->h; 795 796 PetscCall(PetscOptionsGetBool(((PetscObject)draw)->options,((PetscObject)draw)->prefix,"-draw_double_buffer",&doublebuffer,NULL)); 797 if (doublebuffer) PetscCall(PetscDrawSetDoubleBuffer(draw)); 798 PetscFunctionReturn(0); 799 } 800