95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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//
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// Copyright (c) 2001 Microsoft Corporation. All rights reserved.
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//
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// Module:
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// volcano/dll/strkutil.c
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//
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// Description:
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// Functions to implement the functionality of managing breakpoint structures.
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//
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// Author:
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// hrowley & ahmadab 12/05/01
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//
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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#include "common.h"
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#include "volcanop.h"
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// Make a copy of the points in a stroke. Used so that when we free
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// the glyph we don't free the passed in points.
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POINT *
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DupPoints(POINT *pOldPoints, int nPoints)
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{
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int ii;
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POINT *pPoints;
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// Alloc space.
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pPoints = (POINT *) ExternAlloc(nPoints * sizeof(POINT));
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if (!pPoints) {
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return (POINT *)0;
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}
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// Copy point data.
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for (ii = 0; ii < nPoints; ++ii) {
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pPoints[ii] = pOldPoints[ii];
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}
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// Return the new copy.
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return pPoints;
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}
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// Build glyph structure from stroke array.
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GLYPH *
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GlyphFromStrokes(UINT cStrokes, STROKE *pStrokes)
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{
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int ii;
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GLYPH *pGlyph;
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// Convert strokes to GLYPHs and FRAMEs so that we can call the
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// old code.
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pGlyph = (GLYPH *)0;
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for (ii = cStrokes - 1; ii >= 0; --ii) {
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STROKE *pStroke;
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GLYPH *pGlyphCur;
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// Alloc glyph.
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pGlyphCur = NewGLYPH();
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if (!pGlyphCur) {
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goto error;
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}
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// Add to list, and alloc frame
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pGlyphCur->next = pGlyph;
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pGlyph = pGlyphCur;
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pGlyphCur->frame = NewFRAME();
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if (!pGlyphCur->frame) {
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goto error;
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}
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// Get stroke to process.
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pStroke = pStrokes + ii;
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// Fill in frame. We just fill in what we need, and ignore
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// fields not used by Otter and Zilla, or are set by them.
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pGlyphCur->frame->info.cPnt = pStroke->nInk;
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pGlyphCur->frame->info.wPdk = PDK_TRANSITION | PDK_DOWN;
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pGlyphCur->frame->rgrawxy = DupPoints(pStroke->pts, pStroke->nInk);
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pGlyphCur->frame->rect = pStroke->bbox;
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pGlyphCur->frame->iframe = ii;
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if (pGlyphCur->frame->rgrawxy == NULL) {
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goto error;
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}
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}
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return pGlyph;
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error:
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// Cleanup glyphs on error.
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if (pGlyph) {
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DestroyFramesGLYPH(pGlyph);
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DestroyGLYPH(pGlyph);
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}
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return (GLYPH *)0;
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}
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