bool setFont(const char * pFontName = NULL, int nSize = 0)
{
bool bRet = false;
if (m_pPaint)
{
delete m_pPaint;
m_pPaint = NULL;
}
do
{
/* init paint */
m_pPaint = new SkPaint();
CC_BREAK_IF(! m_pPaint);
m_pPaint->setColor(SK_ColorWHITE);
m_pPaint->setTextSize(nSize);
/* create font */
SkTypeface *pTypeFace = SkTypeface::CreateFromName(pFontName, SkTypeface::kNormal);
if (! pTypeFace)
{
CC_SAFE_DELETE(m_pPaint);
break;
}
m_pPaint->setTypeface( pTypeFace );
/* can not unref, I don't know why. It may be memory leak, but how to avoid? */
pTypeFace->unref();
bRet = true;
} while (0);
return bRet;
}
FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
const char* name = 0;
// If a fallback font is being created (e.g. "-webkit-monospace"), convert
// it in to the fallback name (e.g. "monospace").
if (!family.length() || family.startsWith("-webkit-"))
name = getFallbackFontName(fontDescription);
else
name = family.string().utf8().data();
int style = SkTypeface::kNormal;
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
SkTypeface* typeface = SkTypeface::CreateFromName(name, SkTypeface::kNormal);
FontPlatformData* result = 0;
// CreateFromName always returns a typeface, falling back to a default font
// if the one requested could not be found. Calling Equal() with a null
// pointer will compare the returned font against the default, with the
// caveat that the default is always of normal style. When that happens,
// ignore the default font and allow WebCore to provide the next font on the
// CSS fallback list. The only exception to this occurs when the family name
// is a commonly used generic family, which is the case when called by
// getSimilarFontPlatformData() or getLastResortFallbackFont(). In that case
// the default font is an acceptable result.
if (!SkTypeface::Equal(typeface, 0) || isFallbackFamily(family.string())) {
if (style != SkTypeface::kNormal) {
typeface->unref();
typeface = SkTypeface::CreateFromName(name, static_cast<SkTypeface::Style>(style));
}
result = new FontPlatformData(typeface, name, fontDescription.computedSize(),
(style & SkTypeface::kBold) && !typeface->isBold(),
(style & SkTypeface::kItalic) && !typeface->isItalic(),
fontDescription.orientation(),
fontDescription.textOrientation());
}
typeface->unref();
return result;
}
FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription,
const AtomicString& family)
{
const char* name = 0;
CString s;
if (family.length() == 0) {
static const struct {
FontDescription::GenericFamilyType mType;
const char* mName;
} fontDescriptions[] = {
{ 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(fontDescriptions); i++) {
if (type == fontDescriptions[i].mType) {
name = fontDescriptions[i].mName;
break;
}
}
// if we fall out of the loop, it's ok for name to still be 0
}
else { // convert the name to utf8
s = family.string().utf8();
name = s.data();
}
int style = SkTypeface::kNormal;
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
// FIXME: This #ifdef can go away once we're firmly using the new Skia.
// During the transition, this makes the code compatible with both versions.
#ifdef SK_USE_OLD_255_TO_256
SkTypeface* tf = SkTypeface::CreateFromName(name, static_cast<SkTypeface::Style>(style));
#else
SkTypeface* tf = SkTypeface::Create(name, static_cast<SkTypeface::Style>(style));
#endif
if (!tf)
return 0;
FontPlatformData* result =
new FontPlatformData(tf,
fontDescription.computedSize(),
(style & SkTypeface::kBold) && !tf->isBold(),
(style & SkTypeface::kItalic) && !tf->isItalic());
tf->unref();
return result;
}
FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription,
const AtomicString& family)
{
const char* name = 0;
CString s;
// If we're creating a fallback font (e.g. "-webkit-monospace"), convert the name into
// the fallback name (like "monospace") that fontconfig understands.
if (!family.length() || family.startsWith("-webkit-")) {
static const struct {
FontDescription::GenericFamilyType mType;
const char* mName;
} fontDescriptions[] = {
{ 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(fontDescriptions); i++) {
if (type == fontDescriptions[i].mType) {
name = fontDescriptions[i].mName;
break;
}
}
if (!name)
name = "";
} else {
// convert the name to utf8
s = family.string().utf8();
name = s.data();
}
int style = SkTypeface::kNormal;
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
SkTypeface* tf = SkTypeface::CreateFromName(name, static_cast<SkTypeface::Style>(style));
if (!tf)
return 0;
FontPlatformData* result =
new FontPlatformData(tf,
name,
fontDescription.computedSize(),
(style & SkTypeface::kBold) && !tf->isBold(),
(style & SkTypeface::kItalic) && !tf->isItalic(),
fontDescription.orientation(),
fontDescription.textOrientation());
tf->unref();
return result;
}
ACanvasSkia::~ACanvasSkia()
{
for(std::map<AString,SkTypeface*>::iterator it=m_aFontType.begin();it!=m_aFontType.end();it++)
{
SkTypeface* p = it->second;
p->unref();
}
m_aFontType.clear();
Free();
}
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);
if (!tf)
return 0;
FontPlatformData* result = new FontPlatformData(tf,
name,
fontDescription.computedSize(),
(style & SkTypeface::kBold) && !tf->isBold(),
(style & SkTypeface::kItalic) && !tf->isItalic());
tf->unref();
sk_free(storage);
return result;
}
uint32_t SkTypeface::UniqueID(const SkTypeface* face) {
if (face) {
return face->uniqueID();
}
// We cache the default fontID, assuming it will not change during a boot
// The initial value of 0 is fine, since a typeface's uniqueID should not
// be zero.
static uint32_t gDefaultFontID;
if (0 == gDefaultFontID) {
SkTypeface* defaultFace = SkFontHost::CreateTypeface(NULL, NULL,
SkTypeface::kNormal);
SkASSERT(defaultFace);
gDefaultFontID = defaultFace->uniqueID();
defaultFace->unref();
}
return gDefaultFontID;
}
FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
const char* name = 0;
CString nameString; // Keeps name valid within scope of this function in case that name is from a family.
// If a fallback font is being created (e.g. "-webkit-monospace"), convert
// it in to the fallback name (e.g. "monospace").
if (!family.length() || family.startsWith("-webkit-"))
name = getFallbackFontName(fontDescription);
else {
nameString = family.string().utf8();
name = nameString.data();
}
int style = SkTypeface::kNormal;
if (fontDescription.weight() >= FontWeightBold)
style |= SkTypeface::kBold;
if (fontDescription.italic())
style |= SkTypeface::kItalic;
SkTypeface* typeface = 0;
FontPlatformData* result = 0;
if (PlatformSupport::layoutTestMode()) {
CString customFontPath = getCustomFontPath(name,
style & SkTypeface::kBold,
style & SkTypeface::kItalic);
if (customFontPath.length()) {
typeface = SkTypeface::CreateFromFile(customFontPath.data());
result = new FontPlatformData(typeface, name, fontDescription.computedSize(),
(style & SkTypeface::kBold) && !typeface->isBold(),
(style & SkTypeface::kItalic) && !typeface->isItalic(),
fontDescription.orientation(),
fontDescription.textOrientation());
}
}
if (!typeface) {
FallbackScripts fallbackScript = SkGetFallbackScriptFromID(name);
if (SkTypeface_ValidScript(fallbackScript)) {
// Do not use fallback fonts in layout test.
if (PlatformSupport::layoutTestMode())
return NULL;
typeface = SkCreateTypefaceForScript(fallbackScript);
if (typeface)
result = new FontPlatformData(typeface, name, fontDescription.computedSize(),
(style & SkTypeface::kBold) && !typeface->isBold(),
(style & SkTypeface::kItalic) && !typeface->isItalic(),
fontDescription.orientation(),
fontDescription.textOrientation());
} else {
typeface = SkTypeface::CreateFromName(name, SkTypeface::kNormal);
// CreateFromName always returns a typeface, falling back to a default font
// if the one requested could not be found. Calling Equal() with a null
// pointer will compare the returned font against the default, with the
// caveat that the default is always of normal style. When that happens,
// ignore the default font and allow WebCore to provide the next font on the
// CSS fallback list. The only exception to this occurs when the family name
// is a commonly used generic family, which is the case when called by
// getSimilarFontPlatformData() or getLastResortFallbackFont(). In that case
// the default font is an acceptable result.
if (!SkTypeface::Equal(typeface, 0) || isFallbackFamily(family.string())) {
// We had to use normal styling to see if this was a default font. If
// we need bold or italic, replace with the corrected typeface.
if (style != SkTypeface::kNormal) {
typeface->unref();
typeface = SkTypeface::CreateFromName(name, static_cast<SkTypeface::Style>(style));
}
result = new FontPlatformData(typeface, name, fontDescription.computedSize(),
(style & SkTypeface::kBold) && !typeface->isBold(),
(style & SkTypeface::kItalic) && !typeface->isItalic(),
fontDescription.orientation(),
fontDescription.textOrientation());
}
}
}
SkSafeUnref(typeface);
return result;
}