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1 /* | |
2 * This file is part of the internal font implementation. It should not be incl
uded by anyone other than | |
3 * FontMac.cpp, FontWin.cpp and Font.cpp. | |
4 * | |
5 * Copyright (C) 2006, 2007, 2008 Apple Inc. | |
6 * Copyright (C) 2008 Brent Fulgham | |
7 * | |
8 * This library is free software; you can redistribute it and/or | |
9 * modify it under the terms of the GNU Library General Public | |
10 * License as published by the Free Software Foundation; either | |
11 * version 2 of the License, or (at your option) any later version. | |
12 * | |
13 * This library is distributed in the hope that it will be useful, | |
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 * Library General Public License for more details. | |
17 * | |
18 * You should have received a copy of the GNU Library General Public License | |
19 * along with this library; see the file COPYING.LIB. If not, write to | |
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
21 * Boston, MA 02110-1301, USA. | |
22 * | |
23 */ | |
24 | |
25 #include "config.h" | |
26 #include "FontPlatformData.h" | |
27 | |
28 #include "HWndDC.h" | |
29 #include "SharedBuffer.h" | |
30 #include <wtf/HashMap.h> | |
31 #include <wtf/RetainPtr.h> | |
32 #include <wtf/Vector.h> | |
33 #include <wtf/text/StringHash.h> | |
34 #include <wtf/text/WTFString.h> | |
35 | |
36 using std::min; | |
37 | |
38 namespace WebCore { | |
39 | |
40 FontPlatformData::FontPlatformData(HFONT font, float size, bool bold, bool obliq
ue, bool useGDI) | |
41 : m_font(RefCountedGDIHandle<HFONT>::create(font)) | |
42 , m_size(size) | |
43 , m_orientation(Horizontal) | |
44 , m_widthVariant(RegularWidth) | |
45 , m_isColorBitmapFont(false) | |
46 , m_syntheticBold(bold) | |
47 , m_syntheticOblique(oblique) | |
48 , m_useGDI(useGDI) | |
49 { | |
50 HWndDC hdc(0); | |
51 SaveDC(hdc); | |
52 | |
53 SelectObject(hdc, font); | |
54 UINT bufferSize = GetOutlineTextMetrics(hdc, 0, NULL); | |
55 | |
56 ASSERT_WITH_MESSAGE(bufferSize, "Bitmap fonts not supported with CoreGraphic
s."); | |
57 | |
58 if (bufferSize) { | |
59 OUTLINETEXTMETRICW* metrics = (OUTLINETEXTMETRICW*)malloc(bufferSize); | |
60 | |
61 GetOutlineTextMetricsW(hdc, bufferSize, metrics); | |
62 WCHAR* faceName = (WCHAR*)((uintptr_t)metrics + (uintptr_t)metrics->otmp
FaceName); | |
63 | |
64 platformDataInit(font, size, hdc, faceName); | |
65 | |
66 free(metrics); | |
67 } | |
68 | |
69 RestoreDC(hdc, -1); | |
70 } | |
71 | |
72 PassRefPtr<SharedBuffer> FontPlatformData::openTypeTable(uint32_t table) const | |
73 { | |
74 HWndDC hdc(0); | |
75 HGDIOBJ oldFont = SelectObject(hdc, hfont()); | |
76 | |
77 DWORD size = GetFontData(hdc, table, 0, 0, 0); | |
78 RefPtr<SharedBuffer> buffer; | |
79 if (size != GDI_ERROR) { | |
80 buffer = SharedBuffer::create(size); | |
81 DWORD result = GetFontData(hdc, table, 0, (PVOID)buffer->data(), size); | |
82 ASSERT(result == size); | |
83 } | |
84 | |
85 SelectObject(hdc, oldFont); | |
86 return buffer.release(); | |
87 } | |
88 | |
89 #ifndef NDEBUG | |
90 String FontPlatformData::description() const | |
91 { | |
92 return String(); | |
93 } | |
94 #endif | |
95 | |
96 } | |
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