/*
* Prepare to do drawing in a window or pixmap using the specified
* graphics context. Returns the drawable pointer if successful,
* and the type of drawing id that was supplied. Returns the special value
* GR_DRAW_TYPE_NONE if an error is generated, or if drawing is useless.
*/
GR_DRAW_TYPE GsPrepareDrawing(GR_DRAW_ID id, GR_GC_ID gcid, GR_DRAWABLE **retdp)
{
GR_WINDOW *wp; /* found window */
GR_PIXMAP *pp; /* found pixmap */
GR_GC *gcp; /* found graphics context */
GR_FONT *fontp;
GR_REGION *regionp; /* user clipping region */
MWCLIPREGION *reg;
PMWFONT pf;
*retdp = NULL;
gcp = GsFindGC(gcid);
if (gcp == NULL)
return GR_DRAW_TYPE_NONE;
/*
* If the graphics context is not the current one, then
* make it the current one and remember to update it.
*/
if (gcp != curgcp) {
curgcp = gcp;
gcp->changed = GR_TRUE;
}
/*
* Look for window or pixmap id
*/
pp = NULL;
wp = GsFindWindow(id);
if (wp == NULL) {
pp = GsFindPixmap(id);
if (pp == NULL)
return GR_DRAW_TYPE_NONE;
#if DYNAMICREGIONS
reg = GdAllocRectRegion(0, 0, pp->psd->xvirtres,
pp->psd->yvirtres);
/* intersect with user region if any*/
if (gcp->regionid) {
regionp = GsFindRegion(gcp->regionid);
if (regionp)
GdIntersectRegion(reg, reg, regionp->rgn);
}
GdSetClipRegion(pp->psd, reg);
#else
{
MWCLIPRECT cliprect;
/* FIXME: setup pixmap clipping, different from windows*/
cliprect.x = 0;
cliprect.y = 0;
cliprect.width = pp->psd->xvirtres;
cliprect.height = pp->psd->yvirtres;
GdSetClipRects(pp->psd, 1, &cliprect);
}
#endif
/* reset clip cache for next window draw*/
clipwp = NULL;
} else {
if (!wp->output) {
GsError(GR_ERROR_INPUT_ONLY_WINDOW, id);
return GR_DRAW_TYPE_NONE;
}
if (wp->unmapcount)
return GR_DRAW_TYPE_NONE;
/*
* If the window is not the currently clipped one,
* then make it the current one and define its clip rectangles.
*/
if (wp != clipwp || gcp->changed) {
/* find user region for intersect*/
if (gcp->regionid)
regionp = GsFindRegion(gcp->regionid);
else regionp = NULL;
/*
* Special handling if user region is not at offset 0,0
*/
if (regionp && (gcp->xoff || gcp->yoff)) {
MWCLIPREGION *local = GdAllocRegion();
GdCopyRegion(local, regionp->rgn);
GdOffsetRegion(local, gcp->xoff, gcp->yoff);
GsSetClipWindow(wp, local,
gcp->mode & ~GR_MODE_DRAWMASK);
GdDestroyRegion(local);
} else {
GsSetClipWindow(wp, regionp? regionp->rgn: NULL,
gcp->mode & ~GR_MODE_DRAWMASK);
}
}
}
/*
* If the graphics context has been changed, then tell the
* device driver about it.
*/
if (gcp->changed) {
GdSetForeground(GdFindColor(gcp->foreground));
GdSetBackground(GdFindColor(gcp->background));
GdSetMode(gcp->mode & GR_MODE_DRAWMASK);
GdSetUseBackground(gcp->usebackground);
fontp = GsFindFont(gcp->fontid);
pf = fontp? fontp->pfont: stdfont;
GdSetFont(pf);
gcp->changed = GR_FALSE;
}
*retdp = wp? (GR_DRAWABLE *)wp: (GR_DRAWABLE *)pp;
return wp? GR_DRAW_TYPE_WINDOW: GR_DRAW_TYPE_PIXMAP;
}
/*
* Prepare to do drawing in a window or pixmap using the specified
* graphics context. Returns the drawable pointer if successful,
* and the type of drawing id that was supplied. Returns the special value
* GR_DRAW_TYPE_NONE if an error is generated, or if drawing is useless.
*/
GR_DRAW_TYPE
GsPrepareDrawing(GR_DRAW_ID id, GR_GC_ID gcid, GR_DRAWABLE **retdp)
{
GR_WINDOW *wp; /* found window */
GR_PIXMAP *pp; /* found pixmap */
GR_GC *gcp; /* found graphics context */
GR_REGION *regionp; /* user clipping region */
MWCLIPREGION*reg;
*retdp = NULL;
gcp = GsFindGC(gcid);
if (gcp == NULL)
return GR_DRAW_TYPE_NONE;
/*
* If the graphics context is not the current one, then
* make it the current one and remember to update it.
*/
if (gcp != curgcp) {
curgcp = gcp;
gcp->changed = GR_TRUE;
}
/*
* Look for window or pixmap id
*/
pp = NULL;
wp = GsFindWindow(id);
if (wp == NULL) {
pp = GsFindPixmap(id);
if (pp == NULL)
return GR_DRAW_TYPE_NONE;
havepixmap:
#if DYNAMICREGIONS
reg = GdAllocRectRegion(0, 0, pp->psd->xvirtres, pp->psd->yvirtres);
/* intersect with user region if any*/
if (gcp->regionid) {
regionp = GsFindRegion(gcp->regionid);
if (regionp) {
/* handle pixmap offsets*/
if (gcp->xoff || gcp->yoff) {
MWCLIPREGION *local = GdAllocRegion();
GdCopyRegion(local, regionp->rgn);
GdOffsetRegion(local, gcp->xoff, gcp->yoff);
GdIntersectRegion(reg, reg, local);
GdDestroyRegion(local);
} else
GdIntersectRegion(reg, reg, regionp->rgn);
}
}
GdSetClipRegion(pp->psd, reg);
#else
{
MWCLIPRECT cliprect;
/* FIXME: setup pixmap clipping, different from windows*/
cliprect.x = 0;
cliprect.y = 0;
cliprect.width = pp->psd->xvirtres;
cliprect.height = pp->psd->yvirtres;
GdSetClipRects(pp->psd, 1, &cliprect);
}
#endif
/* reset clip cache for next window draw*/
clipwp = NULL;
} else {
if (!wp->output) {
GsError(GR_ERROR_INPUT_ONLY_WINDOW, id);
return GR_DRAW_TYPE_NONE;
}
/* check if buffered window*/
if (wp->props & GR_WM_PROPS_BUFFERED) {
pp = wp->buffer;
wp = NULL;
goto havepixmap; /* draw into pixmap buffer*/
}
if (!wp->realized)
return GR_DRAW_TYPE_NONE;
/*
* If the window is not the currently clipped one,
* then make it the current one and define its clip rectangles.
*/
if (wp != clipwp || gcp->changed) {
#if DYNAMICREGIONS
/* find user region for intersect*/
regionp = gcp->regionid? GsFindRegion(gcp->regionid): NULL;
/* Special handling if user region is not at offset 0,0*/
if (regionp && (gcp->xoff || gcp->yoff)) {
MWCLIPREGION *local = GdAllocRegion();
GdCopyRegion(local, regionp->rgn);
GdOffsetRegion(local, gcp->xoff, gcp->yoff);
GsSetClipWindow(wp, local, gcp->mode & ~GR_MODE_DRAWMASK);
GdDestroyRegion(local);
} else
GsSetClipWindow(wp, regionp? regionp->rgn: NULL, gcp->mode & ~GR_MODE_DRAWMASK);
#else
GsSetClipWindow(wp, NULL, gcp->mode & ~GR_MODE_DRAWMASK);
#endif /* DYNAMICREGIONS*/
}
}
/*
* If the graphics context has been changed, then tell the
* device driver about it.
*/
if (gcp->changed) {
PSD psd = (wp ? wp->psd : pp->psd);
uint32_t mask;
int count;
if (gcp->linestyle == GR_LINE_SOLID) {
mask = 0;
count = 0;
} else {
mask = gcp->dashmask;
count = gcp->dashcount;
}
if (gcp->fgispixelval)
GdSetForegroundPixelVal(psd, gcp->foreground);
else
GdSetForegroundColor(psd, gcp->foreground);
if (gcp->bgispixelval)
GdSetBackgroundPixelVal(psd, gcp->background);
else
GdSetBackgroundColor(psd, gcp->background);
GdSetMode(gcp->mode & GR_MODE_DRAWMASK);
GdSetUseBackground(gcp->usebackground);
#if MW_FEATURE_SHAPES
GdSetDash(&mask, &count);
GdSetFillMode(gcp->fillmode);
GdSetTSOffset(gcp->ts_offset.x, gcp->ts_offset.y);
switch(gcp->fillmode) {
case GR_FILL_STIPPLE:
case GR_FILL_OPAQUE_STIPPLE:
GdSetStippleBitmap(gcp->stipple.bitmap, gcp->stipple.width, gcp->stipple.height);
break;
case GR_FILL_TILE:
GdSetTilePixmap(gcp->tile.psd, gcp->tile.width, gcp->tile.height);
break;
}
#endif
gcp->changed = GR_FALSE;
}
*retdp = wp? (GR_DRAWABLE *)wp: (GR_DRAWABLE *)pp;
return wp? GR_DRAW_TYPE_WINDOW: GR_DRAW_TYPE_PIXMAP;
}
