| /* |
| * 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" |
| #include <wtf/text/win/WCharStringExtras.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, wcharFrom(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; |
| } |
| |
| } |