| /* |
| * This file is part of the internal font implementation. It should not be included by anyone other than |
| * FontMac.cpp, FontWin.cpp and Font.cpp. |
| * |
| * Copyright (C) 2006-2008, 2016 Apple Inc. |
| * Copyright (C) 2008 Brent Fulgham |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "FontPlatformData.h" |
| |
| #include "HWndDC.h" |
| #include "SharedBuffer.h" |
| #include <wtf/HashMap.h> |
| #include <wtf/RetainPtr.h> |
| #include <wtf/Vector.h> |
| #include <wtf/text/StringHash.h> |
| #include <wtf/text/WTFString.h> |
| |
| #if USE(DIRECT2D) |
| #include <dwrite.h> |
| #endif |
| |
| using std::min; |
| |
| namespace WebCore { |
| |
| FontPlatformData::FontPlatformData(GDIObject<HFONT> font, float size, bool bold, bool oblique, bool useGDI) |
| : m_font(SharedGDIObject<HFONT>::create(WTFMove(font))) |
| , m_size(size) |
| , m_syntheticBold(bold) |
| , m_syntheticOblique(oblique) |
| , m_useGDI(useGDI) |
| { |
| HWndDC hdc(0); |
| SaveDC(hdc); |
| |
| ::SelectObject(hdc, m_font->get()); |
| UINT bufferSize = GetOutlineTextMetrics(hdc, 0, NULL); |
| |
| ASSERT_WITH_MESSAGE(bufferSize, "Bitmap fonts not supported with CoreGraphics."); |
| |
| if (bufferSize) { |
| static const constexpr unsigned InitialBufferSize { 256 }; |
| Vector<char, InitialBufferSize> buffer(bufferSize); |
| auto* metrics = reinterpret_cast<OUTLINETEXTMETRICW*>(buffer.data()); |
| |
| GetOutlineTextMetricsW(hdc, bufferSize, metrics); |
| WCHAR* faceName = (WCHAR*)((uintptr_t)metrics + (uintptr_t)metrics->otmpFaceName); |
| |
| platformDataInit(m_font->get(), size, hdc, faceName); |
| } |
| |
| RestoreDC(hdc, -1); |
| } |
| |
| RefPtr<SharedBuffer> FontPlatformData::openTypeTable(uint32_t table) const |
| { |
| HWndDC hdc(0); |
| HGDIOBJ oldFont = SelectObject(hdc, hfont()); |
| |
| DWORD size = GetFontData(hdc, table, 0, 0, 0); |
| RefPtr<SharedBuffer> buffer; |
| if (size != GDI_ERROR) { |
| Vector<char> data(size); |
| DWORD result = GetFontData(hdc, table, 0, (PVOID)data.data(), size); |
| ASSERT_UNUSED(result, result == size); |
| buffer = SharedBuffer::create(WTFMove(data)); |
| } |
| |
| SelectObject(hdc, oldFont); |
| return buffer; |
| } |
| |
| #if !LOG_DISABLED |
| String FontPlatformData::description() const |
| { |
| return String(); |
| } |
| #endif |
| |
| } |