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343 lines
10 KiB
C
343 lines
10 KiB
C
/* $Xorg: CrGC.c,v 1.5 2001/02/09 02:03:32 xorgcvs Exp $ */
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/*
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Copyright 1986, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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/* $XFree86: xc/lib/X11/CrGC.c,v 3.7 2003/04/13 19:22:15 dawes Exp $ */
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#include "Xlibint.h"
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#include "Cr.h"
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static XGCValues const initial_GC = {
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GXcopy, /* function */
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AllPlanes, /* plane_mask */
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0L, /* foreground */
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1L, /* background */
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0, /* line_width */
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LineSolid, /* line_style */
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CapButt, /* cap_style */
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JoinMiter, /* join_style */
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FillSolid, /* fill_style */
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EvenOddRule,/* fill_rule */
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ArcPieSlice,/* arc_mode */
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(Pixmap)~0L,/* tile, impossible (unknown) resource */
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(Pixmap)~0L,/* stipple, impossible (unknown) resource */
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0, /* ts_x_origin */
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0, /* ts_y_origin */
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(Font)~0L, /* font, impossible (unknown) resource */
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ClipByChildren, /* subwindow_mode */
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True, /* graphics_exposures */
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0, /* clip_x_origin */
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0, /* clip_y_origin */
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None, /* clip_mask */
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0, /* dash_offset */
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4 /* dashes (list [4,4]) */
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};
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static void _XGenerateGCList(
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register Display *dpy,
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GC gc,
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xReq *req);
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GC XCreateGC (dpy, d, valuemask, values)
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register Display *dpy;
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Drawable d; /* Window or Pixmap for which depth matches */
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unsigned long valuemask; /* which ones to set initially */
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XGCValues *values; /* the values themselves */
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{
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register GC gc;
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register xCreateGCReq *req;
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register _XExtension *ext;
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LockDisplay(dpy);
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if ((gc = (GC)Xmalloc (sizeof(struct _XGC))) == NULL) {
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UnlockDisplay(dpy);
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SyncHandle();
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return (NULL);
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}
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gc->rects = 0;
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gc->dashes = 0;
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gc->ext_data = NULL;
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gc->values = initial_GC;
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gc->dirty = 0L;
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valuemask &= (1L << (GCLastBit + 1)) - 1;
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if (valuemask) _XUpdateGCCache (gc, valuemask, values);
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GetReq(CreateGC, req);
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req->drawable = d;
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req->gc = gc->gid = XAllocID(dpy);
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if ((req->mask = gc->dirty))
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_XGenerateGCList (dpy, gc, (xReq *) req);
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/* call out to any extensions interested */
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for (ext = dpy->ext_procs; ext; ext = ext->next)
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if (ext->create_GC) (*ext->create_GC)(dpy, gc, &ext->codes);
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gc->dirty = 0L; /* allow extensions to see dirty bits */
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UnlockDisplay(dpy);
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SyncHandle();
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return (gc);
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}
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/*
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* GenerateGCList looks at the GC dirty bits, and appends all the required
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* long words to the request being generated.
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*/
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static void
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_XGenerateGCList (
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register Display *dpy,
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GC gc,
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xReq *req)
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{
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unsigned long values[32];
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register unsigned long *value = values;
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long nvalues;
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register XGCValues *gv = &gc->values;
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register unsigned long dirty = gc->dirty;
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/*
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* Note: The order of these tests are critical; the order must be the
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* same as the GC mask bits in the word.
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*/
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if (dirty & GCFunction) *value++ = gv->function;
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if (dirty & GCPlaneMask) *value++ = gv->plane_mask;
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if (dirty & GCForeground) *value++ = gv->foreground;
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if (dirty & GCBackground) *value++ = gv->background;
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if (dirty & GCLineWidth) *value++ = gv->line_width;
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if (dirty & GCLineStyle) *value++ = gv->line_style;
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if (dirty & GCCapStyle) *value++ = gv->cap_style;
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if (dirty & GCJoinStyle) *value++ = gv->join_style;
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if (dirty & GCFillStyle) *value++ = gv->fill_style;
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if (dirty & GCFillRule) *value++ = gv->fill_rule;
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if (dirty & GCTile) *value++ = gv->tile;
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if (dirty & GCStipple) *value++ = gv->stipple;
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if (dirty & GCTileStipXOrigin) *value++ = gv->ts_x_origin;
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if (dirty & GCTileStipYOrigin) *value++ = gv->ts_y_origin;
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if (dirty & GCFont) *value++ = gv->font;
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if (dirty & GCSubwindowMode) *value++ = gv->subwindow_mode;
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if (dirty & GCGraphicsExposures) *value++ = gv->graphics_exposures;
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if (dirty & GCClipXOrigin) *value++ = gv->clip_x_origin;
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if (dirty & GCClipYOrigin) *value++ = gv->clip_y_origin;
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if (dirty & GCClipMask) *value++ = gv->clip_mask;
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if (dirty & GCDashOffset) *value++ = gv->dash_offset;
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if (dirty & GCDashList) *value++ = gv->dashes;
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if (dirty & GCArcMode) *value++ = gv->arc_mode;
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req->length += (nvalues = value - values);
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/*
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* note: Data is a macro that uses its arguments multiple
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* times, so "nvalues" is changed in a separate assignment
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* statement
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*/
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nvalues <<= 2;
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Data32 (dpy, (long *) values, nvalues);
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}
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int
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_XUpdateGCCache (gc, mask, attr)
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register unsigned long mask;
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register XGCValues *attr;
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register GC gc;
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{
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register XGCValues *gv = &gc->values;
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if (mask & GCFunction)
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if (gv->function != attr->function) {
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gv->function = attr->function;
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gc->dirty |= GCFunction;
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}
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if (mask & GCPlaneMask)
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if (gv->plane_mask != attr->plane_mask) {
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gv->plane_mask = attr->plane_mask;
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gc->dirty |= GCPlaneMask;
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}
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if (mask & GCForeground)
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if (gv->foreground != attr->foreground) {
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gv->foreground = attr->foreground;
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gc->dirty |= GCForeground;
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}
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if (mask & GCBackground)
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if (gv->background != attr->background) {
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gv->background = attr->background;
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gc->dirty |= GCBackground;
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}
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if (mask & GCLineWidth)
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if (gv->line_width != attr->line_width) {
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gv->line_width = attr->line_width;
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gc->dirty |= GCLineWidth;
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}
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if (mask & GCLineStyle)
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if (gv->line_style != attr->line_style) {
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gv->line_style = attr->line_style;
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gc->dirty |= GCLineStyle;
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}
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if (mask & GCCapStyle)
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if (gv->cap_style != attr->cap_style) {
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gv->cap_style = attr->cap_style;
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gc->dirty |= GCCapStyle;
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}
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if (mask & GCJoinStyle)
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if (gv->join_style != attr->join_style) {
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gv->join_style = attr->join_style;
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gc->dirty |= GCJoinStyle;
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}
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if (mask & GCFillStyle)
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if (gv->fill_style != attr->fill_style) {
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gv->fill_style = attr->fill_style;
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gc->dirty |= GCFillStyle;
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}
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if (mask & GCFillRule)
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if (gv->fill_rule != attr->fill_rule) {
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gv->fill_rule = attr->fill_rule;
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gc->dirty |= GCFillRule;
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}
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if (mask & GCArcMode)
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if (gv->arc_mode != attr->arc_mode) {
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gv->arc_mode = attr->arc_mode;
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gc->dirty |= GCArcMode;
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}
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/* always write through tile change, since client may have changed pixmap contents */
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if (mask & GCTile) {
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gv->tile = attr->tile;
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gc->dirty |= GCTile;
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}
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/* always write through stipple change, since client may have changed pixmap contents */
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if (mask & GCStipple) {
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gv->stipple = attr->stipple;
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gc->dirty |= GCStipple;
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}
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if (mask & GCTileStipXOrigin)
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if (gv->ts_x_origin != attr->ts_x_origin) {
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gv->ts_x_origin = attr->ts_x_origin;
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gc->dirty |= GCTileStipXOrigin;
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}
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if (mask & GCTileStipYOrigin)
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if (gv->ts_y_origin != attr->ts_y_origin) {
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gv->ts_y_origin = attr->ts_y_origin;
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gc->dirty |= GCTileStipYOrigin;
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}
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if (mask & GCFont)
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if (gv->font != attr->font) {
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gv->font = attr->font;
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gc->dirty |= GCFont;
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}
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if (mask & GCSubwindowMode)
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if (gv->subwindow_mode != attr->subwindow_mode) {
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gv->subwindow_mode = attr->subwindow_mode;
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gc->dirty |= GCSubwindowMode;
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}
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if (mask & GCGraphicsExposures)
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if (gv->graphics_exposures != attr->graphics_exposures) {
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gv->graphics_exposures = attr->graphics_exposures;
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gc->dirty |= GCGraphicsExposures;
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}
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if (mask & GCClipXOrigin)
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if (gv->clip_x_origin != attr->clip_x_origin) {
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gv->clip_x_origin = attr->clip_x_origin;
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gc->dirty |= GCClipXOrigin;
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}
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if (mask & GCClipYOrigin)
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if (gv->clip_y_origin != attr->clip_y_origin) {
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gv->clip_y_origin = attr->clip_y_origin;
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gc->dirty |= GCClipYOrigin;
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}
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/* always write through mask change, since client may have changed pixmap contents */
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if (mask & GCClipMask) {
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gv->clip_mask = attr->clip_mask;
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gc->dirty |= GCClipMask;
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gc->rects = 0;
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}
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if (mask & GCDashOffset)
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if (gv->dash_offset != attr->dash_offset) {
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gv->dash_offset = attr->dash_offset;
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gc->dirty |= GCDashOffset;
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}
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if (mask & GCDashList)
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if ((gv->dashes != attr->dashes) || (gc->dashes == True)) {
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gv->dashes = attr->dashes;
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gc->dirty |= GCDashList;
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gc->dashes = 0;
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}
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return 0;
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}
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/* can only call when display is already locked. */
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void _XFlushGCCache(dpy, gc)
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Display *dpy;
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GC gc;
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{
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register xChangeGCReq *req;
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register _XExtension *ext;
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if (gc->dirty) {
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GetReq(ChangeGC, req);
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req->gc = gc->gid;
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req->mask = gc->dirty;
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_XGenerateGCList (dpy, gc, (xReq *) req);
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/* call out to any extensions interested */
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for (ext = dpy->ext_procs; ext; ext = ext->next)
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if (ext->flush_GC) (*ext->flush_GC)(dpy, gc, &ext->codes);
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gc->dirty = 0L; /* allow extensions to see dirty bits */
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}
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}
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void XFlushGC(dpy, gc)
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Display *dpy;
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GC gc;
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{
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FlushGC(dpy, gc);
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}
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GContext XGContextFromGC(gc)
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GC gc;
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{ return (gc->gid); }
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