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/*
* Copyright 2009, The Android Open Source Project
* Copyright (C) 2006 Apple Computer, 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 "FontCache.h"
#include "FontPlatformData.h"
#include "Font.h"
#include "NotImplemented.h"
#include "SimpleFontData.h"
#include "SkPaint.h"
#include "SkTypeface.h"
#include "SkUtils.h"
namespace WebCore {
void FontCache::platformInit()
{
}
const SimpleFontData* FontCache::getFontDataForCharacters(const Font& font, const UChar* characters, int length)
{
// since all of our fonts logically map to the fallback, we can always claim
// that each font supports all characters.
return font.primaryFont();
}
FontPlatformData* FontCache::getSimilarFontPlatformData(const Font& font)
{
return 0;
}
FontPlatformData* FontCache::getLastResortFallbackFont(const FontDescription& font)
{
static AtomicString str("sans-serif");
return getCachedFontPlatformData(font, str);
}
static char* AtomicStringToUTF8String(const AtomicString& utf16)
{
SkASSERT(sizeof(uint16_t) == sizeof(utf16.characters()[0]));
const uint16_t* uni = (uint16_t*)utf16.characters();
size_t bytes = SkUTF16_ToUTF8(uni, utf16.length(), NULL);
char* utf8 = (char*)sk_malloc_throw(bytes + 1);
(void)SkUTF16_ToUTF8(uni, utf16.length(), utf8);
utf8[bytes] = 0;
return utf8;
}
FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
char* storage = 0;
const char* name = 0;
if (family.length() == 0) {
static const struct {
FontDescription::GenericFamilyType mType;
const char* mName;
} gNames[] = {
{ FontDescription::SerifFamily, "serif" },
{ FontDescription::SansSerifFamily, "sans-serif" },
{ FontDescription::MonospaceFamily, "monospace" },
{ FontDescription::CursiveFamily, "cursive" },
{ FontDescription::FantasyFamily, "fantasy" }
};
FontDescription::GenericFamilyType type = fontDescription.genericFamily();
for (unsigned i = 0; i < SK_ARRAY_COUNT(gNames); i++)
{
if (type == gNames[i].mType)
{
name = gNames[i].mName;
break;
}
}
// if we fall out of the loop, its ok for name to still be 0
}
else { // convert the name to utf8
storage = AtomicStringToUTF8String(family);
name = storage;
}
int style = SkTypeface::kNormal;
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
SkTypeface* tf = SkTypeface::CreateFromName(name, (SkTypeface::Style)style);
FontPlatformData* result = new FontPlatformData(tf,
fontDescription.computedSize(),
(style & SkTypeface::kBold) && !tf->isBold(),
(style & SkTypeface::kItalic) && !tf->isItalic());
tf->unref();
sk_free(storage);
return result;
}
// new as of SVN change 36269, Sept 8, 2008
void FontCache::getTraitsInFamily(const AtomicString& familyName, Vector<unsigned>& traitsMasks)
{
// Don't understand this yet, but it seems safe to leave unimplemented
}
}
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