de/draw.c

   1 /*
   2  * ion/de/draw.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2009.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <string.h>
  10 #include <limits.h>
  11
  12 #include <ioncore/global.h>
  13 #include <ioncore/common.h>
  14 #include <ioncore/gr.h>
  15 #include <ioncore/gr-util.h>
  16 #include "brush.h"
  17 #include "font.h"
  18 #include "private.h"
  19
  20 #include <X11/extensions/shape.h>
  21
  22
  23 /*{{{ Colour group lookup */
  24
  25
  26 static DEColourGroup *destyle_get_colour_group2(DEStyle *style,
  27                                                 const GrStyleSpec *a1,
  28                                                 const GrStyleSpec *a2)
  29 {
  30     int i, score, maxscore=0;
  31     DEColourGroup *maxg=&(style->cgrp);
  32
  33     while(style!=NULL){
  34         for(i=0; i<style->n_extra_cgrps; i++){
  35             score=gr_stylespec_score2(&style->extra_cgrps[i].spec, a1, a2);
  36
  37             if(score>maxscore){
  38                 maxg=&(style->extra_cgrps[i]);
  39                 maxscore=score;
  40             }
  41         }
  42         style=style->based_on;
  43     }
  44
  45     return maxg;
  46 }
  47
  48
  49 DEColourGroup *debrush_get_colour_group2(DEBrush *brush,
  50                                          const GrStyleSpec *a1,
  51                                          const GrStyleSpec *a2)
  52 {
  53     return destyle_get_colour_group2(brush->d, a1, a2);
  54 }
  55
  56
  57 DEColourGroup *debrush_get_colour_group(DEBrush *brush, const GrStyleSpec *attr)
  58 {
  59     return destyle_get_colour_group2(brush->d, attr, NULL);
  60 }
  61
  62
  63 DEColourGroup *debrush_get_current_colour_group(DEBrush *brush)
  64 {
  65     return debrush_get_colour_group(brush, debrush_get_current_attr(brush));
  66 }
  67
  68
  69 /*}}}*/
  70
  71
  72 /*{{{ Borders */
  73
  74
  75 /* Draw a border at x, y with outer width w x h. Top and left 'tl' pixels
  76  * wide with color 'tlc' and bottom and right 'br' pixels with colors 'brc'.
  77  */
  78 static void do_draw_border(Window win, GC gc, int x, int y, int w, int h,
  79                            uint tl, uint br, DEColour tlc, DEColour brc)
  80 {
  81     XPoint points[3];
  82     uint i=0, a=0, b=0;
  83
  84     w--;
  85     h--;
  86
  87     XSetForeground(ioncore_g.dpy, gc, tlc);
  88
  89
  90     a=(br!=0);
  91     b=0;
  92
  93     for(i=0; i<tl; i++){
  94         points[0].x=x+i;        points[0].y=y+h+1-b;
  95         points[1].x=x+i;        points[1].y=y+i;
  96         points[2].x=x+w+1-a;    points[2].y=y+i;
  97
  98         if(a<br)
  99             a++;
 100         if(b<br)
 101             b++;
 102
 103         XDrawLines(ioncore_g.dpy, win, gc, points, 3, CoordModeOrigin);
 104     }
 105
 106
 107     XSetForeground(ioncore_g.dpy, gc, brc);
 108
 109     a=(tl!=0);
 110     b=0;
 111
 112     for(i=0; i<br; i++){
 113         points[0].x=x+w-i;      points[0].y=y+b;
 114         points[1].x=x+w-i;      points[1].y=y+h-i;
 115         points[2].x=x+a;        points[2].y=y+h-i;
 116
 117         if(a<tl)
 118             a++;
 119         if(b<tl)
 120             b++;
 121
 122         XDrawLines(ioncore_g.dpy, win, gc, points, 3, CoordModeOrigin);
 123     }
 124 }
 125
 126
 127 static void draw_border(Window win, GC gc, WRectangle *geom,
 128                         uint tl, uint br, DEColour tlc, DEColour brc)
 129 {
 130     do_draw_border(win, gc, geom->x, geom->y, geom->w, geom->h,
 131                    tl, br, tlc, brc);
 132     geom->x+=tl;
 133     geom->y+=tl;
 134     geom->w-=tl+br;
 135     geom->h-=tl+br;
 136 }
 137
 138
 139 static void draw_borderline(Window win, GC gc, WRectangle *geom,
 140                             uint tl, uint br, DEColour tlc, DEColour brc,
 141                             GrBorderLine line)
 142 {
 143     if(line==GR_BORDERLINE_LEFT && geom->h>0 && tl>0){
 144         XSetForeground(ioncore_g.dpy, gc, tlc);
 145         XSetBackground(ioncore_g.dpy, gc, tlc);
 146         XFillRectangle(ioncore_g.dpy, win, gc, geom->x, geom->y, tl, geom->h);
 147         geom->x+=tl;
 148     }else if(line==GR_BORDERLINE_TOP && geom->w>0 && tl>0){
 149         XSetForeground(ioncore_g.dpy, gc, tlc);
 150         XSetBackground(ioncore_g.dpy, gc, tlc);
 151         XFillRectangle(ioncore_g.dpy, win, gc, geom->x, geom->y, geom->w, tl);
 152         geom->y+=tl;
 153     }else if(line==GR_BORDERLINE_RIGHT && geom->h>0 && br>0){
 154         XSetForeground(ioncore_g.dpy, gc, brc);
 155         XSetBackground(ioncore_g.dpy, gc, brc);
 156         XFillRectangle(ioncore_g.dpy, win, gc, geom->x+geom->w-br, geom->y, br, geom->h);
 157         geom->w-=br;
 158     }else if(line==GR_BORDERLINE_BOTTOM && geom->w>0 && br>0){
 159         XSetForeground(ioncore_g.dpy, gc, brc);
 160         XSetBackground(ioncore_g.dpy, gc, brc);
 161         XFillRectangle(ioncore_g.dpy, win, gc, geom->x, geom->y+geom->h-br, geom->w, br);
 162         geom->h-=br;
 163     }
 164 }
 165
 166
 167 void debrush_do_draw_borderline(DEBrush *brush, WRectangle geom,
 168                                 DEColourGroup *cg, GrBorderLine line)
 169 {
 170     DEBorder *bd=&(brush->d->border);
 171     GC gc=brush->d->normal_gc;
 172     Window win=brush->win;
 173
 174     switch(bd->style){
 175     case DEBORDER_RIDGE:
 176         draw_borderline(win, gc, &geom, bd->hl, bd->sh, cg->hl, cg->sh, line);
 177     case DEBORDER_INLAID:
 178         draw_borderline(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad, line);
 179         draw_borderline(win, gc, &geom, bd->sh, bd->hl, cg->sh, cg->hl, line);
 180         break;
 181     case DEBORDER_GROOVE:
 182         draw_borderline(win, gc, &geom, bd->sh, bd->hl, cg->sh, cg->hl, line);
 183         draw_borderline(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad, line);
 184         draw_borderline(win, gc, &geom, bd->hl, bd->sh, cg->hl, cg->sh, line);
 185         break;
 186     case DEBORDER_ELEVATED:
 187     default:
 188         draw_borderline(win, gc, &geom, bd->hl, bd->sh, cg->hl, cg->sh, line);
 189         draw_borderline(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad, line);
 190         break;
 191     }
 192 }
 193
 194
 195 void debrush_do_draw_padline(DEBrush *brush, WRectangle geom,
 196                              DEColourGroup *cg, GrBorderLine line)
 197 {
 198     DEBorder *bd=&(brush->d->border);
 199     GC gc=brush->d->normal_gc;
 200     Window win=brush->win;
 201
 202     draw_borderline(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad, line);
 203 }
 204
 205
 206 void debrush_draw_borderline(DEBrush *brush, const WRectangle *geom,
 207                              GrBorderLine line)
 208 {
 209     DEColourGroup *cg=debrush_get_current_colour_group(brush);
 210     if(cg!=NULL)
 211         debrush_do_draw_borderline(brush, *geom, cg, line);
 212 }
 213
 214
 215 static void debrush_do_do_draw_border(DEBrush *brush, WRectangle geom,
 216                                       DEColourGroup *cg)
 217 {
 218     DEBorder *bd=&(brush->d->border);
 219     GC gc=brush->d->normal_gc;
 220     Window win=brush->win;
 221
 222     switch(bd->style){
 223     case DEBORDER_RIDGE:
 224         draw_border(win, gc, &geom, bd->hl, bd->sh, cg->hl, cg->sh);
 225     case DEBORDER_INLAID:
 226         draw_border(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad);
 227         draw_border(win, gc, &geom, bd->sh, bd->hl, cg->sh, cg->hl);
 228         break;
 229     case DEBORDER_GROOVE:
 230         draw_border(win, gc, &geom, bd->sh, bd->hl, cg->sh, cg->hl);
 231         draw_border(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad);
 232         draw_border(win, gc, &geom, bd->hl, bd->sh, cg->hl, cg->sh);
 233         break;
 234     case DEBORDER_ELEVATED:
 235     default:
 236         draw_border(win, gc, &geom, bd->hl, bd->sh, cg->hl, cg->sh);
 237         draw_border(win, gc, &geom, bd->pad, bd->pad, cg->pad, cg->pad);
 238         break;
 239     }
 240 }
 241
 242
 243 void debrush_do_draw_border(DEBrush *brush, WRectangle geom,
 244                             DEColourGroup *cg)
 245 {
 246     DEBorder *bd=&(brush->d->border);
 247
 248     switch(bd->sides){
 249     case DEBORDER_ALL:
 250         debrush_do_do_draw_border(brush, geom, cg);
 251         break;
 252     case DEBORDER_TB:
 253         debrush_do_draw_padline(brush, geom, cg, GR_BORDERLINE_LEFT);
 254         debrush_do_draw_padline(brush, geom, cg, GR_BORDERLINE_RIGHT);
 255         debrush_do_draw_borderline(brush, geom, cg, GR_BORDERLINE_TOP);
 256         debrush_do_draw_borderline(brush, geom, cg, GR_BORDERLINE_BOTTOM);
 257         break;
 258     case DEBORDER_LR:
 259         debrush_do_draw_padline(brush, geom, cg, GR_BORDERLINE_TOP);
 260         debrush_do_draw_padline(brush, geom, cg, GR_BORDERLINE_BOTTOM);
 261         debrush_do_draw_borderline(brush, geom, cg, GR_BORDERLINE_LEFT);
 262         debrush_do_draw_borderline(brush, geom, cg, GR_BORDERLINE_RIGHT);
 263         break;
 264     }
 265 }
 266
 267
 268 void debrush_draw_border(DEBrush *brush,
 269                          const WRectangle *geom)
 270 {
 271     DEColourGroup *cg=debrush_get_current_colour_group(brush);
 272     if(cg!=NULL)
 273         debrush_do_draw_border(brush, *geom, cg);
 274 }
 275
 276
 277 /*}}}*/
 278
 279
 280 /*{{{ Boxes */
 281
 282
 283 static void copy_masked(DEBrush *brush, Drawable src, Drawable dst,
 284                         int src_x, int src_y, int w, int h,
 285                         int dst_x, int dst_y)
 286 {
 287
 288     GC copy_gc=brush->d->copy_gc;
 289
 290     XSetClipMask(ioncore_g.dpy, copy_gc, src);
 291     XSetClipOrigin(ioncore_g.dpy, copy_gc, dst_x, dst_y);
 292     XCopyPlane(ioncore_g.dpy, src, dst, copy_gc, src_x, src_y, w, h,
 293                dst_x, dst_y, 1);
 294 }
 295
 296
 297
 298 #define ISSET(S, A) ((S)!=NULL && gr_stylespec_isset(S, A))
 299
 300
 301 GR_DEFATTR(dragged);
 302 GR_DEFATTR(tagged);
 303 GR_DEFATTR(submenu);
 304 GR_DEFATTR(numbered);
 305 GR_DEFATTR(tabnumber);
 306
 307
 308 static void ensure_attrs()
 309 {
 310     GR_ALLOCATTR_BEGIN;
 311     GR_ALLOCATTR(dragged);
 312     GR_ALLOCATTR(tagged);
 313     GR_ALLOCATTR(submenu);
 314     GR_ALLOCATTR(numbered);
 315     GR_ALLOCATTR(tabnumber);
 316     GR_ALLOCATTR_END;
 317 }
 318
 319
 320 static int get_ty(const WRectangle *g, const GrBorderWidths *bdw,
 321                   const GrFontExtents *fnte)
 322 {
 323     return (g->y+bdw->top+fnte->baseline
 324             +(g->h-bdw->top-bdw->bottom-fnte->max_height)/2);
 325 }
 326
 327
 328 void debrush_tab_extras(DEBrush *brush, const WRectangle *g,
 329                         DEColourGroup *cg, const GrBorderWidths *bdw,
 330                         const GrFontExtents *fnte,
 331                         const GrStyleSpec *a1,
 332                         const GrStyleSpec *a2,
 333                         bool pre, int index)
 334 {
 335     DEStyle *d=brush->d;
 336     GC tmp;
 337     /* Not thread-safe, but neither is the rest of the drawing code
 338      * with shared GC:s.
 339      */
 340     static bool swapped=FALSE;
 341
 342     ensure_attrs();
 343
 344     if(pre){
 345         if(ISSET(a2, GR_ATTR(dragged)) || ISSET(a1, GR_ATTR(dragged))){
 346             tmp=d->normal_gc;
 347             d->normal_gc=d->stipple_gc;
 348             d->stipple_gc=tmp;
 349             swapped=TRUE;
 350             XClearArea(ioncore_g.dpy, brush->win, g->x, g->y, g->w, g->h, False);
 351         }
 352         return;
 353     }
 354
 355
 356     if((ISSET(a1, GR_ATTR(numbered)) || ISSET(a2, GR_ATTR(numbered)))
 357        && index>=0){
 358
 359         DEColourGroup *cg;
 360         GrStyleSpec tmp;
 361
 362         gr_stylespec_init(&tmp);
 363         gr_stylespec_append(&tmp, a2);
 364         gr_stylespec_set(&tmp, GR_ATTR(tabnumber));
 365
 366         cg=debrush_get_colour_group2(brush, a1, &tmp);
 367
 368         gr_stylespec_unalloc(&tmp);
 369
 370         if(cg!=NULL){
 371             char *s=NULL;
 372
 373             libtu_asprintf(&s, "[%d]", index+1);
 374
 375             if(s!=NULL){
 376                 int l=strlen(s);
 377                 uint w=debrush_get_text_width(brush, s, l);
 378                 if(w < g->w-bdw->right-bdw->left){
 379                     int ty=get_ty(g, bdw, fnte);
 380                     int tx=(d->textalign==DEALIGN_RIGHT
 381                             ? g->x+bdw->left
 382                             : g->x+g->w-bdw->right-w);
 383                     debrush_do_draw_string(brush, tx, ty, s, l, TRUE, cg);
 384                 }
 385                 free(s);
 386             }
 387         }
 388     }
 389
 390     if(ISSET(a2, GR_ATTR(tagged)) || ISSET(a1, GR_ATTR(tagged))){
 391         XSetForeground(ioncore_g.dpy, d->copy_gc, cg->fg);
 392
 393         copy_masked(brush, d->tag_pixmap, brush->win, 0, 0,
 394                     d->tag_pixmap_w, d->tag_pixmap_h,
 395                     g->x+g->w-bdw->right-d->tag_pixmap_w,
 396                     g->y+bdw->top);
 397     }
 398
 399     if(swapped){
 400         tmp=d->normal_gc;
 401         d->normal_gc=d->stipple_gc;
 402         d->stipple_gc=tmp;
 403         swapped=FALSE;
 404     }
 405     /*if(MATCHES2("*-*-*-dragged", a1, a2)){
 406         XFillRectangle(ioncore_g.dpy, win, d->stipple_gc,
 407                        g->x, g->y, g->w, g->h);
 408     }*/
 409 }
 410
 411
 412 void debrush_menuentry_extras(DEBrush *brush,
 413                               const WRectangle *g,
 414                               DEColourGroup *cg,
 415                               const GrBorderWidths *bdw,
 416                               const GrFontExtents *fnte,
 417                               const GrStyleSpec *a1,
 418                               const GrStyleSpec *a2,
 419                               bool pre, int index)
 420 {
 421     int tx, ty;
 422
 423     if(pre)
 424         return;
 425
 426     ensure_attrs();
 427
 428     if(ISSET(a2, GR_ATTR(submenu)) || ISSET(a1, GR_ATTR(submenu))){
 429         ty=get_ty(g, bdw, fnte);
 430         tx=g->x+g->w-bdw->right;
 431
 432         debrush_do_draw_string(brush, tx, ty, DE_SUB_IND, DE_SUB_IND_LEN,
 433                                FALSE, cg);
 434     }
 435 }
 436
 437
 438 void debrush_do_draw_box(DEBrush *brush, const WRectangle *geom,
 439                          DEColourGroup *cg, bool needfill)
 440 {
 441     GC gc=brush->d->normal_gc;
 442
 443     if(TRUE/*needfill*/){
 444         XSetForeground(ioncore_g.dpy, gc, cg->bg);
 445         XFillRectangle(ioncore_g.dpy, brush->win, gc, geom->x, geom->y,
 446                        geom->w, geom->h);
 447     }
 448
 449     debrush_do_draw_border(brush, *geom, cg);
 450 }
 451
 452
 453 static void debrush_do_draw_textbox(DEBrush *brush,
 454                                     const WRectangle *geom,
 455                                     const char *text,
 456                                     DEColourGroup *cg,
 457                                     bool needfill,
 458                                     const GrStyleSpec *a1,
 459                                     const GrStyleSpec *a2,
 460                                     int index)
 461 {
 462     uint len;
 463     GrBorderWidths bdw;
 464     GrFontExtents fnte;
 465     uint tx, ty, tw;
 466
 467     grbrush_get_border_widths(&(brush->grbrush), &bdw);
 468     grbrush_get_font_extents(&(brush->grbrush), &fnte);
 469
 470     if(brush->extras_fn!=NULL)
 471         brush->extras_fn(brush, geom, cg, &bdw, &fnte, a1, a2, TRUE, index);
 472
 473     debrush_do_draw_box(brush, geom, cg, needfill);
 474
 475     do{ /*...while(0)*/
 476         if(text==NULL)
 477             break;
 478
 479         len=strlen(text);
 480
 481         if(len==0)
 482             break;
 483
 484         if(brush->d->textalign!=DEALIGN_LEFT){
 485             tw=grbrush_get_text_width((GrBrush*)brush, text, len);
 486
 487             if(brush->d->textalign==DEALIGN_CENTER)
 488                 tx=geom->x+bdw.left+(geom->w-bdw.left-bdw.right-tw)/2;
 489             else
 490                 tx=geom->x+geom->w-bdw.right-tw;
 491         }else{
 492             tx=geom->x+bdw.left;
 493         }
 494
 495         ty=get_ty(geom, &bdw, &fnte);
 496
 497         debrush_do_draw_string(brush, tx, ty, text, len, FALSE, cg);
 498     }while(0);
 499
 500     if(brush->extras_fn!=NULL)
 501         brush->extras_fn(brush, geom, cg, &bdw, &fnte, a1, a2, FALSE, index);
 502 }
 503
 504
 505 void debrush_draw_textbox(DEBrush *brush, const WRectangle *geom,
 506                           const char *text, bool needfill)
 507 {
 508     GrStyleSpec *attr=debrush_get_current_attr(brush);
 509     DEColourGroup *cg=debrush_get_colour_group(brush, attr);
 510
 511     if(cg!=NULL){
 512         debrush_do_draw_textbox(brush, geom, text, cg, needfill,
 513                                 attr, NULL, -1);
 514     }
 515 }
 516
 517
 518 void debrush_draw_textboxes(DEBrush *brush, const WRectangle *geom,
 519                             int n, const GrTextElem *elem,
 520                             bool needfill)
 521 {
 522     GrStyleSpec *common_attrib;
 523     WRectangle g=*geom;
 524     DEColourGroup *cg;
 525     GrBorderWidths bdw;
 526     int i;
 527
 528     common_attrib=debrush_get_current_attr(brush);
 529
 530     grbrush_get_border_widths(&(brush->grbrush), &bdw);
 531
 532     for(i=0; ; i++){
 533         g.w=bdw.left+elem[i].iw+bdw.right;
 534         cg=debrush_get_colour_group2(brush, common_attrib, &elem[i].attr);
 535
 536         if(cg!=NULL){
 537             debrush_do_draw_textbox(brush, &g, elem[i].text, cg, needfill,
 538                                     common_attrib, &elem[i].attr, i);
 539         }
 540
 541         if(i==n-1)
 542             break;
 543
 544         g.x+=g.w;
 545         if(bdw.spacing>0 && needfill){
 546             XClearArea(ioncore_g.dpy, brush->win, g.x, g.y,
 547                        brush->d->spacing, g.h, False);
 548         }
 549         g.x+=bdw.spacing;
 550     }
 551 }
 552
 553
 554 /*}}}*/
 555
 556
 557 /*{{{ Misc. */
 558
 559 #define MAXSHAPE 16
 560
 561 void debrush_set_window_shape(DEBrush *brush, bool rough,
 562                               int n, const WRectangle *rects)
 563 {
 564     XRectangle r[MAXSHAPE];
 565     int i;
 566
 567     if(n>MAXSHAPE)
 568         n=MAXSHAPE;
 569
 570     if(n==0){
 571         /* n==0 should clear the shape. As there's absolutely no
 572          * documentation for XShape (as is typical of all sucky X
 573          * extensions), I don't know how the shape should properly
 574          * be cleared. Thus we just use a huge rectangle.
 575          */
 576         n=1;
 577         r[0].x=0;
 578         r[0].y=0;
 579         r[0].width=USHRT_MAX;
 580         r[0].height=USHRT_MAX;
 581     }else{
 582         for(i=0; i<n; i++){
 583             r[i].x=rects[i].x;
 584             r[i].y=rects[i].y;
 585             r[i].width=rects[i].w;
 586             r[i].height=rects[i].h;
 587         }
 588     }
 589
 590     XShapeCombineRectangles(ioncore_g.dpy, brush->win,
 591                             ShapeBounding, 0, 0, r, n,
 592                             ShapeSet, Unsorted);
 593 }
 594
 595
 596 void debrush_enable_transparency(DEBrush *brush, GrTransparency mode)
 597 {
 598     XSetWindowAttributes attr;
 599     ulong attrflags=0;
 600
 601     if(mode==GR_TRANSPARENCY_DEFAULT)
 602         mode=brush->d->transparency_mode;
 603
 604     if(mode==GR_TRANSPARENCY_YES){
 605         attrflags=CWBackPixmap;
 606         attr.background_pixmap=ParentRelative;
 607     }else{
 608         attrflags=CWBackPixel;
 609         attr.background_pixel=brush->d->cgrp.bg;
 610     }
 611
 612     XChangeWindowAttributes(ioncore_g.dpy, brush->win, attrflags, &attr);
 613     XClearWindow(ioncore_g.dpy, brush->win);
 614 }
 615
 616
 617 void debrush_fill_area(DEBrush *brush, const WRectangle *geom)
 618 {
 619     DEColourGroup *cg=debrush_get_current_colour_group(brush);
 620     GC gc=brush->d->normal_gc;
 621
 622     if(cg==NULL)
 623         return;
 624
 625     XSetForeground(ioncore_g.dpy, gc, cg->bg);
 626     XFillRectangle(ioncore_g.dpy, brush->win, gc,
 627                    geom->x, geom->y, geom->w, geom->h);
 628 }
 629
 630
 631 void debrush_clear_area(DEBrush *brush, const WRectangle *geom)
 632 {
 633     XClearArea(ioncore_g.dpy, brush->win,
 634                geom->x, geom->y, geom->w, geom->h, False);
 635 }
 636
 637
 638 /*}}}*/
 639
 640
 641 /*{{{ Clipping rectangles */
 642
 643 /* Should actually set the clipping rectangle for all GC:s and use
 644  * window-specific GC:s to do this correctly...
 645  */
 646
 647 static void debrush_set_clipping_rectangle(DEBrush *brush,
 648                                            const WRectangle *geom)
 649 {
 650     XRectangle rect;
 651
 652     assert(!brush->clip_set);
 653
 654     rect.x=geom->x;
 655     rect.y=geom->y;
 656     rect.width=geom->w;
 657     rect.height=geom->h;
 658
 659     XSetClipRectangles(ioncore_g.dpy, brush->d->normal_gc,
 660                        0, 0, &rect, 1, Unsorted);
 661     brush->clip_set=TRUE;
 662 }
 663
 664
 665 static void debrush_clear_clipping_rectangle(DEBrush *brush)
 666 {
 667     if(brush->clip_set){
 668         XSetClipMask(ioncore_g.dpy, brush->d->normal_gc, None);
 669         brush->clip_set=FALSE;
 670     }
 671 }
 672
 673
 674 /*}}}*/
 675
 676
 677 /*{{{ debrush_begin/end */
 678
 679
 680 void debrush_begin(DEBrush *brush, const WRectangle *geom, int flags)
 681 {
 682
 683     if(flags&GRBRUSH_AMEND)
 684         flags|=GRBRUSH_NO_CLEAR_OK;
 685
 686     if(!(flags&GRBRUSH_KEEP_ATTR))
 687         debrush_init_attr(brush, NULL);
 688
 689     if(!(flags&GRBRUSH_NO_CLEAR_OK))
 690         debrush_clear_area(brush, geom);
 691
 692     if(flags&GRBRUSH_NEED_CLIP)
 693         debrush_set_clipping_rectangle(brush, geom);
 694 }
 695
 696
 697 void debrush_end(DEBrush *brush)
 698 {
 699     debrush_clear_clipping_rectangle(brush);
 700 }
 701
 702
 703 /*}}}*/
 704