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Diffstat (limited to 'mi/mipolyrect.c')
| -rw-r--r-- | mi/mipolyrect.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/mi/mipolyrect.c b/mi/mipolyrect.c new file mode 100644 index 000000000..935203d9a --- /dev/null +++ b/mi/mipolyrect.c @@ -0,0 +1,187 @@ +/*********************************************************** + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ +/* $Xorg: mipolyrect.c,v 1.4 2001/02/09 02:05:21 xorgcvs Exp $ */ +#include "X.h" +#include "Xprotostr.h" +#include "miscstruct.h" +#include "gcstruct.h" +#include "pixmap.h" + +void +miPolyRectangle(pDraw, pGC, nrects, pRects) + DrawablePtr pDraw; + GCPtr pGC; + int nrects; + xRectangle *pRects; +{ + int i; + xRectangle *pR = pRects; + DDXPointRec rect[5]; + int bound_tmp; + +#define MINBOUND(dst,eqn) bound_tmp = eqn; \ + if (bound_tmp < -32768) \ + bound_tmp = -32768; \ + dst = bound_tmp; + +#define MAXBOUND(dst,eqn) bound_tmp = eqn; \ + if (bound_tmp > 32767) \ + bound_tmp = 32767; \ + dst = bound_tmp; + +#define MAXUBOUND(dst,eqn) bound_tmp = eqn; \ + if (bound_tmp > 65535) \ + bound_tmp = 65535; \ + dst = bound_tmp; + + if (pGC->lineStyle == LineSolid && pGC->joinStyle == JoinMiter && + pGC->lineWidth != 0) + { + xRectangle *tmp, *t; + int ntmp; + int offset1, offset2, offset3; + int x, y, width, height; + + ntmp = (nrects << 2); + offset2 = pGC->lineWidth; + offset1 = offset2 >> 1; + offset3 = offset2 - offset1; + tmp = (xRectangle *) ALLOCATE_LOCAL(ntmp * sizeof (xRectangle)); + if (!tmp) + return; + t = tmp; + for (i = 0; i < nrects; i++) + { + x = pR->x; + y = pR->y; + width = pR->width; + height = pR->height; + pR++; + if (width == 0 && height == 0) + { + rect[0].x = x; + rect[0].y = y; + rect[1].x = x; + rect[1].y = y; + (*pGC->ops->Polylines)(pDraw, pGC, CoordModeOrigin, 2, rect); + } + else if (height < offset2 || width < offset1) + { + if (height == 0) + { + t->x = x; + t->width = width; + } + else + { + MINBOUND (t->x, x - offset1) + MAXUBOUND (t->width, width + offset2) + } + if (width == 0) + { + t->y = y; + t->height = height; + } + else + { + MINBOUND (t->y, y - offset1) + MAXUBOUND (t->height, height + offset2) + } + t++; + } + else + { + MINBOUND(t->x, x - offset1) + MINBOUND(t->y, y - offset1) + MAXUBOUND(t->width, width + offset2) + t->height = offset2; + t++; + MINBOUND(t->x, x - offset1) + MAXBOUND(t->y, y + offset3); + t->width = offset2; + t->height = height - offset2; + t++; + MAXBOUND(t->x, x + width - offset1); + MAXBOUND(t->y, y + offset3) + t->width = offset2; + t->height = height - offset2; + t++; + MINBOUND(t->x, x - offset1) + MAXBOUND(t->y, y + height - offset1) + MAXUBOUND(t->width, width + offset2) + t->height = offset2; + t++; + } + } + (*pGC->ops->PolyFillRect) (pDraw, pGC, t - tmp, tmp); + DEALLOCATE_LOCAL ((pointer) tmp); + } + else + { + + for (i=0; i<nrects; i++) + { + rect[0].x = pR->x; + rect[0].y = pR->y; + + MAXBOUND(rect[1].x, pR->x + (int) pR->width) + rect[1].y = rect[0].y; + + rect[2].x = rect[1].x; + MAXBOUND(rect[2].y, pR->y + (int) pR->height); + + rect[3].x = rect[0].x; + rect[3].y = rect[2].y; + + rect[4].x = rect[0].x; + rect[4].y = rect[0].y; + + (*pGC->ops->Polylines)(pDraw, pGC, CoordModeOrigin, 5, rect); + pR++; + } + } +} |