/* * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "GlyphPage.h" #include "Font.h" #include "HWndDC.h" namespace WebCore { bool GlyphPage::fill(UChar* buffer, unsigned bufferLength) { // bufferLength will be greater than the requested number of glyphs if the buffer contains surrogate pairs. // We won't support this for now. if (bufferLength > GlyphPage::size) return false; const Font& font = this->font(); bool haveGlyphs = false; HWndDC dc(0); SaveDC(dc); SelectObject(dc, font.platformData().hfont()); WORD localGlyphBuffer[GlyphPage::size * 2]; DWORD result = GetGlyphIndices(dc, buffer, bufferLength, localGlyphBuffer, GGI_MARK_NONEXISTING_GLYPHS); bool success = result != GDI_ERROR && static_cast<unsigned>(result) == bufferLength; if (success) { for (unsigned i = 0; i < GlyphPage::size; i++) { Glyph glyph = localGlyphBuffer[i]; if (glyph == 0xffff) setGlyphForIndex(i, 0); else { setGlyphForIndex(i, glyph); haveGlyphs = true; } } } RestoreDC(dc, -1); return haveGlyphs; } }