1/* 2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include "config.h" 30#include "GlyphPageTreeNode.h" 31 32#include "HWndDC.h" 33#include "SimpleFontData.h" 34 35namespace WebCore { 36 37bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData) 38{ 39 // bufferLength will be greater than the requested number of glyphs if the buffer contains surrogate pairs. 40 // We won't support this for now. 41 if (bufferLength > length) 42 return false; 43 44 bool haveGlyphs = false; 45 46 HWndDC dc(0); 47 SaveDC(dc); 48 SelectObject(dc, fontData->platformData().hfont()); 49 50 WORD localGlyphBuffer[GlyphPage::size * 2]; 51 DWORD result = GetGlyphIndices(dc, buffer, bufferLength, localGlyphBuffer, 0); 52 bool success = result != GDI_ERROR && static_cast<unsigned>(result) == bufferLength; 53 if (success) { 54 for (unsigned i = 0; i < length; i++) { 55 Glyph glyph = localGlyphBuffer[i]; 56 if (!glyph) 57 setGlyphDataForIndex(offset + i, 0, 0); 58 else { 59 setGlyphDataForIndex(offset + i, glyph, fontData); 60 haveGlyphs = true; 61 } 62 } 63 } 64 RestoreDC(dc, -1); 65 66 return haveGlyphs; 67} 68 69} 70