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store real fontstyle on mac fonts

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git-svn-id: http://skia.googlecode.com/svn/trunk@8399 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2013-03-26 19:30:16 +00:00
parent 919e9c3477
commit ce8b3de605
1 changed files with 61 additions and 14 deletions
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75
src/ports/SkFontHost_mac.cpp
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@ -40,6 +40,7 @@
#include "SkTypeface_mac.h"
#include "SkUtils.h"
#include "SkTypefaceCache.h"
#include "SkFontMgr.h"
class SkScalerContext_Mac;
@ -394,19 +395,54 @@ static SkFontID CTFontRef_to_SkFontID(CTFontRef fontRef) {
return id;
}
static SkFontStyle stylebits2fontstyle(SkTypeface::Style styleBits) {
return SkFontStyle((styleBits & SkTypeface::kBold)
? SkFontStyle::kBold_Weight
: SkFontStyle::kNormal_Weight,
SkFontStyle::kNormal_Width,
(styleBits & SkTypeface::kItalic)
? SkFontStyle::kItalic_Slant
: SkFontStyle::kUpright_Slant);
}
#define WEIGHT_THRESHOLD ((SkFontStyle::kNormal_Weight + SkFontStyle::kBold_Weight)/2)
static SkTypeface::Style fontstyle2stylebits(const SkFontStyle& fs) {
unsigned style = 0;
if (fs.width() >= WEIGHT_THRESHOLD) {
style |= SkTypeface::kBold;
}
if (fs.isItalic()) {
style |= SkTypeface::kItalic;
}
return (SkTypeface::Style)style;
}
class SkTypeface_Mac : public SkTypeface {
public:
SkTypeface_Mac(SkTypeface::Style style, SkFontID fontID, bool isFixedPitch,
CTFontRef fontRef, const char name[])
: SkTypeface(style, fontID, isFixedPitch)
, fName(name)
, fFontRef(fontRef) // caller has already called CFRetain for us
: SkTypeface(style, fontID, isFixedPitch)
, fName(name)
, fFontRef(fontRef) // caller has already called CFRetain for us
, fFontStyle(stylebits2fontstyle(style))
{
SkASSERT(fontRef);
}
SkTypeface_Mac(const SkFontStyle& fs, SkFontID fontID, bool isFixedPitch,
CTFontRef fontRef, const char name[])
: SkTypeface(fontstyle2stylebits(fs), fontID, isFixedPitch)
, fName(name)
, fFontRef(fontRef) // caller has already called CFRetain for us
, fFontStyle(fs)
{
SkASSERT(fontRef);
}
SkString fName;
AutoCFRelease<CTFontRef> fFontRef;
SkFontStyle fFontStyle;
protected:
friend class SkFontHost; // to access our protected members for deprecated methods
@ -424,6 +460,7 @@ protected:
const uint32_t*, uint32_t) const SK_OVERRIDE;
private:
typedef SkTypeface INHERITED;
};
@ -1841,16 +1878,6 @@ static bool find_dict_float(CFDictionaryRef dict, CFStringRef name, float* value
&& CFNumberGetValue(num, kCFNumberFloatType, value);
}
static SkTypeface* createFromDesc(CFStringRef cfFamilyName,
CTFontDescriptorRef desc) {
AutoCFRelease<CTFontRef> ctNamed(CTFontCreateWithName(cfFamilyName, 1, NULL));
CTFontRef ctFont = CTFontCreateCopyWithAttributes(ctNamed, 1, NULL, desc);
SkString str;
CFStringToSkString(cfFamilyName, &str);
return ctFont ? NewFromFontRef(ctFont, str.c_str()) : NULL;
}
#include "SkFontMgr.h"
static int unit_weight_to_fontstyle(float unit) {
@ -1898,6 +1925,25 @@ static SkFontStyle desc2fontstyle(CTFontDescriptorRef desc) {
: SkFontStyle::kUpright_Slant);
}
static SkTypeface* createFromDesc(CFStringRef cfFamilyName,
CTFontDescriptorRef desc) {
AutoCFRelease<CTFontRef> ctNamed(CTFontCreateWithName(cfFamilyName, 1, NULL));
CTFontRef ctFont = CTFontCreateCopyWithAttributes(ctNamed, 1, NULL, desc);
if (NULL == ctFont) {
return NULL;
}
SkString str;
CFStringToSkString(cfFamilyName, &str);
bool isFixedPitch;
(void)computeStyleBits(ctFont, &isFixedPitch);
SkFontID fontID = CTFontRef_to_SkFontID(ctFont);
return new SkTypeface_Mac(desc2fontstyle(desc), fontID, isFixedPitch,
ctFont, str.c_str());
}
class SkFontStyleSet_Mac : public SkFontStyleSet {
public:
SkFontStyleSet_Mac(CFStringRef familyName, CTFontDescriptorRef desc)
@ -1932,6 +1978,7 @@ public:
virtual SkTypeface* createTypeface(int index) SK_OVERRIDE {
SkASSERT((unsigned)index < (unsigned)CFArrayGetCount(fArray));
CTFontDescriptorRef desc = (CTFontDescriptorRef)CFArrayGetValueAtIndex(fArray, index);
return createFromDesc(fFamilyName, desc);
}