diff options
Diffstat (limited to 'WebCore/platform/graphics/pango/SimpleFontDataPango.cpp')
| -rw-r--r-- | WebCore/platform/graphics/pango/SimpleFontDataPango.cpp | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/WebCore/platform/graphics/pango/SimpleFontDataPango.cpp b/WebCore/platform/graphics/pango/SimpleFontDataPango.cpp deleted file mode 100644 index d0bf836..0000000 --- a/WebCore/platform/graphics/pango/SimpleFontDataPango.cpp +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. - * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com - * Copyright (C) 2007, 2008 Alp Toker <alp@atoker.com> - * Copyright (C) 2007 Holger Hans Peter Freyther - * Copyright (C) 2007 Pioneer Research Center USA, 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 Computer, 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 "SimpleFontData.h" - -#include "FloatRect.h" -#include "Font.h" -#include "FontCache.h" -#include "FontDescription.h" -#include "GlyphBuffer.h" -#include <cairo.h> -#include <wtf/MathExtras.h> - -namespace WebCore { - -void SimpleFontData::platformInit() -{ - cairo_font_extents_t font_extents; - cairo_text_extents_t text_extents; - cairo_scaled_font_extents(m_platformData.m_scaledFont, &font_extents); - m_ascent = static_cast<int>(lroundf(font_extents.ascent)); - m_descent = static_cast<int>(lroundf(font_extents.descent)); - m_lineSpacing = static_cast<int>(lroundf(font_extents.height)); - // There seems to be some rounding error in cairo (or in how we - // use cairo) with some fonts, like DejaVu Sans Mono, which makes - // cairo report a height smaller than ascent + descent, which is - // wrong and confuses WebCore's layout system. Workaround this - // while we figure out what's going on. - if (m_lineSpacing < m_ascent + m_descent) - m_lineSpacing = m_ascent + m_descent; - cairo_scaled_font_text_extents(m_platformData.m_scaledFont, "x", &text_extents); - m_xHeight = text_extents.height; - cairo_scaled_font_text_extents(m_platformData.m_scaledFont, " ", &text_extents); - m_spaceWidth = static_cast<float>(text_extents.x_advance); - m_lineGap = m_lineSpacing - m_ascent - m_descent; - m_syntheticBoldOffset = m_platformData.syntheticBold() ? 1.0f : 0.f; -} - -void SimpleFontData::platformCharWidthInit() -{ - m_avgCharWidth = 0.f; - m_maxCharWidth = 0.f; - initCharWidths(); -} - -void SimpleFontData::platformDestroy() -{ -} - -SimpleFontData* SimpleFontData::scaledFontData(const FontDescription& fontDescription, float scaleFactor) const -{ - FontDescription desc = FontDescription(fontDescription); - desc.setSpecifiedSize(scaleFactor * fontDescription.computedSize()); - FontPlatformData platformData(desc, desc.family().family()); - return new SimpleFontData(platformData); -} - -SimpleFontData* SimpleFontData::smallCapsFontData(const FontDescription& fontDescription) const -{ - if (!m_derivedFontData) - m_derivedFontData = DerivedFontData::create(isCustomFont()); - if (!m_derivedFontData->smallCaps) - m_derivedFontData->smallCaps = scaledFontData(fontDescription, .7); - - return m_derivedFontData->smallCaps.get(); -} - -SimpleFontData* SimpleFontData::emphasisMarkFontData(const FontDescription& fontDescription) const -{ - if (!m_derivedFontData) - m_derivedFontData = DerivedFontData::create(isCustomFont()); - if (!m_derivedFontData->emphasisMark) - m_derivedFontData->emphasisMark = scaledFontData(fontDescription, .5); - - return m_derivedFontData->emphasisMark.get(); -} - -bool SimpleFontData::containsCharacters(const UChar* characters, int length) const -{ - bool result = true; - - PangoCoverage* coverage = pango_font_get_coverage(m_platformData.m_font, pango_language_get_default()); - - for (int i = 0; i < length; i++) { - if (PANGO_COVERAGE_NONE == pango_coverage_get(coverage, characters[i])) { - result = false; - break; - } - } - - pango_coverage_unref(coverage); - - return result; -} - -void SimpleFontData::determinePitch() -{ - if (isCustomFont()) { - m_treatAsFixedPitch = false; - return; - } - - m_treatAsFixedPitch = m_platformData.isFixedPitch(); -} - -FloatRect SimpleFontData::platformBoundsForGlyph(Glyph) const -{ - return FloatRect(); -} - -float SimpleFontData::platformWidthForGlyph(Glyph glyph) const -{ - ASSERT(m_platformData.m_scaledFont); - - cairo_glyph_t cglyph = { glyph, 0, 0 }; - cairo_text_extents_t extents; - cairo_scaled_font_glyph_extents(m_platformData.m_scaledFont, &cglyph, 1, &extents); - - float width = (float)m_spaceWidth; - if (cairo_scaled_font_status(m_platformData.m_scaledFont) == CAIRO_STATUS_SUCCESS && extents.x_advance != 0) - width = (float)extents.x_advance; - - return width; -} - -} |