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Unified Diff: Source/core/platform/graphics/win/SimpleFontDataWin.cpp

Issue 99103006: Moving GraphicsContext and dependencies from core to platform. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Final patch - fixes Android Created 7 years ago
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Index: Source/core/platform/graphics/win/SimpleFontDataWin.cpp
diff --git a/Source/core/platform/graphics/win/SimpleFontDataWin.cpp b/Source/core/platform/graphics/win/SimpleFontDataWin.cpp
deleted file mode 100644
index 6e74b6d88cda7de9acaf9aed958e224c50076e7b..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/win/SimpleFontDataWin.cpp
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Copyright (C) 2006, 2007 Apple Inc. All Rights Reserved.
- * Copyright (c) 2008, 2009, Google 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:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER OR 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 "core/platform/graphics/SimpleFontData.h"
-
-#include <mlang.h>
-#include <objidl.h>
-#include <unicode/uchar.h>
-#include <unicode/unorm.h>
-#include "core/platform/graphics/Font.h"
-#include "core/platform/graphics/FontCache.h"
-#include "core/platform/graphics/win/FontPlatformDataWin.h"
-#include "platform/fonts/FontDescription.h"
-#include "platform/geometry/FloatRect.h"
-#include "platform/win/HWndDC.h"
-#include "wtf/MathExtras.h"
-
-namespace WebCore {
-
-void SimpleFontData::platformInit()
-{
- if (!m_platformData.size()) {
- m_fontMetrics.reset();
- m_avgCharWidth = 0;
- m_maxCharWidth = 0;
- return;
- }
-
- HWndDC dc(0);
- HGDIOBJ oldFont = SelectObject(dc, m_platformData.hfont());
-
- TEXTMETRIC textMetric = {0};
- if (!GetTextMetrics(dc, &textMetric)) {
- if (FontPlatformData::ensureFontLoaded(m_platformData.hfont())) {
- // Retry GetTextMetrics.
- // FIXME: Handle gracefully the error if this call also fails.
- // See http://crbug.com/6401.
- if (!GetTextMetrics(dc, &textMetric))
- WTF_LOG_ERROR("Unable to get the text metrics after second attempt");
- }
- }
-
- m_avgCharWidth = textMetric.tmAveCharWidth;
- m_maxCharWidth = textMetric.tmMaxCharWidth;
-
- // FIXME: Access ascent/descent/lineGap with floating point precision.
- float ascent = textMetric.tmAscent;
- float descent = textMetric.tmDescent;
- float lineGap = textMetric.tmExternalLeading;
- float xHeight = ascent * 0.56f; // Best guess for xHeight for non-Truetype fonts.
-
- OUTLINETEXTMETRIC outlineTextMetric;
- if (GetOutlineTextMetrics(dc, sizeof(outlineTextMetric), &outlineTextMetric) > 0) {
- m_fontMetrics.setUnitsPerEm(outlineTextMetric.otmEMSquare);
-
- // This is a TrueType font. We might be able to get an accurate xHeight.
- GLYPHMETRICS glyphMetrics = {0};
- MAT2 identityMatrix = {{0, 1}, {0, 0}, {0, 0}, {0, 1}};
- DWORD len = GetGlyphOutlineW(dc, 'x', GGO_METRICS, &glyphMetrics, 0, 0, &identityMatrix);
- if (len != GDI_ERROR && glyphMetrics.gmBlackBoxY > 0)
- xHeight = static_cast<float>(glyphMetrics.gmBlackBoxY);
- }
-
- m_fontMetrics.setAscent(ascent);
- m_fontMetrics.setDescent(descent);
- m_fontMetrics.setLineGap(lineGap);
- m_fontMetrics.setXHeight(xHeight);
- m_fontMetrics.setLineSpacing(ascent + descent + lineGap);
-
- SelectObject(dc, oldFont);
-}
-
-void SimpleFontData::platformCharWidthInit()
-{
- // charwidths are set in platformInit.
-}
-
-void SimpleFontData::platformDestroy()
-{
-}
-
-PassRefPtr<SimpleFontData> SimpleFontData::platformCreateScaledFontData(const FontDescription& fontDescription, float scaleFactor) const
-{
- LOGFONT winFont;
- GetObject(m_platformData.hfont(), sizeof(LOGFONT), &winFont);
- float scaledSize = scaleFactor * fontDescription.computedSize();
- winFont.lfHeight = -lroundf(scaledSize);
- HFONT hfont = CreateFontIndirect(&winFont);
- return SimpleFontData::create(FontPlatformData(hfont, scaledSize, m_platformData.orientation()), isCustomFont() ? CustomFontData::create(false) : 0);
-}
-
-bool SimpleFontData::containsCharacters(const UChar* characters, int length) const
-{
- // This used to be implemented with IMLangFontLink2, but since that code has
- // been disabled, this would always return false anyway.
- return false;
-}
-
-void SimpleFontData::determinePitch()
-{
- m_treatAsFixedPitch = platformData().isFixedPitch();
-}
-
-FloatRect SimpleFontData::platformBoundsForGlyph(Glyph glyph) const
-{
- HWndDC hdc(0);
- SetGraphicsMode(hdc, GM_ADVANCED);
- HGDIOBJ oldFont = SelectObject(hdc, m_platformData.hfont());
-
- GLYPHMETRICS gdiMetrics;
- static const MAT2 identity = { 0, 1, 0, 0, 0, 0, 0, 1 };
- if (GetGlyphOutline(hdc, glyph, GGO_METRICS | GGO_GLYPH_INDEX, &gdiMetrics, 0, 0, &identity) == -1) {
- if (FontPlatformData::ensureFontLoaded(m_platformData.hfont())) {
- // Retry GetTextMetrics.
- // FIXME: Handle gracefully the error if this call also fails.
- // See http://crbug.com/6401.
- if (GetGlyphOutline(hdc, glyph, GGO_METRICS | GGO_GLYPH_INDEX, &gdiMetrics, 0, 0, &identity) == -1)
- WTF_LOG_ERROR("Unable to get the glyph metrics after second attempt");
- }
- }
-
- SelectObject(hdc, oldFont);
-
- return FloatRect(gdiMetrics.gmptGlyphOrigin.x, -gdiMetrics.gmptGlyphOrigin.y,
- gdiMetrics.gmBlackBoxX, gdiMetrics.gmBlackBoxY);
-}
-
-float SimpleFontData::platformWidthForGlyph(Glyph glyph) const
-{
- if (!m_platformData.size())
- return 0;
-
- HWndDC dc(0);
- HGDIOBJ oldFont = SelectObject(dc, m_platformData.hfont());
-
- int width = 0;
- if (!GetCharWidthI(dc, glyph, 1, 0, &width)) {
- // Ask the browser to preload the font and retry.
- if (FontPlatformData::ensureFontLoaded(m_platformData.hfont())) {
- // FIXME: Handle gracefully the error if this call also fails.
- // See http://crbug.com/6401.
- if (!GetCharWidthI(dc, glyph, 1, 0, &width))
- WTF_LOG_ERROR("Unable to get the char width after second attempt");
- }
- }
-
- SelectObject(dc, oldFont);
-
- return static_cast<float>(width);
-}
-
-} // namespace WebCore
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