mac fonts sort of work now

- haven't tested rotation yet
- spacing/bounds still look bad



git-svn-id: http://skia.googlecode.com/svn/trunk@117 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@android.com 2009-03-09 18:12:13 +00:00
parent 0bf64d48cc
commit 330578d67d
3 changed files with 148 additions and 38 deletions

View File

@ -0,0 +1,91 @@
#include "SampleCode.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkTypeface.h"
#include "SkPath.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkUtils.h"
#include "Sk1DPathEffect.h"
#include "SkCornerPathEffect.h"
#include "SkPathMeasure.h"
#include "SkRandom.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkDither.h"
static const struct {
const char* fName;
SkTypeface::Style fStyle;
} gFaces[] = {
{ NULL, SkTypeface::kNormal },
{ NULL, SkTypeface::kBold },
{ "serif", SkTypeface::kNormal },
{ "serif", SkTypeface::kBold },
{ "serif", SkTypeface::kItalic },
{ "serif", SkTypeface::kBoldItalic },
{ "monospace", SkTypeface::kNormal }
};
static const int gFaceCount = SK_ARRAY_COUNT(gFaces);
class FontScalerTestView : public SkView {
SkTypeface* fFaces[gFaceCount];
public:
FontScalerTestView() {
for (int i = 0; i < gFaceCount; i++) {
fFaces[i] = SkTypeface::CreateFromName(gFaces[i].fName,
gFaces[i].fStyle);
}
}
virtual ~FontScalerTestView() {
for (int i = 0; i < gFaceCount; i++) {
fFaces[i]->safeUnref();
}
}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "FontScaler Test");
return true;
}
return this->INHERITED::onQuery(evt);
}
void drawBG(SkCanvas* canvas) {
canvas->drawColor(0xFFDDDDDD);
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
SkPaint paint;
paint.setAntiAlias(true);
paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal))->safeUnref();
const char* text = "HHHaaammmbbbuuurrrgggeeefffooonnnsss";
const size_t textLen = strlen(text);
SkScalar x = SkIntToScalar(10);
SkScalar y = SkIntToScalar(20);
for (int ps = 9; ps <= 24; ps++) {
paint.setTextSize(SkIntToScalar(ps));
canvas->drawText(text, textLen, x, y, paint);
y += paint.getFontMetrics(NULL);
}
}
private:
typedef SkView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new FontScalerTestView; }
static SkViewRegister reg(MyFactory);

View File

@ -185,20 +185,64 @@ void SkScalerContext_Mac::generateAdvance(SkGlyph* glyph) {
void SkScalerContext_Mac::generateMetrics(SkGlyph* glyph) {
GlyphID glyphID = glyph->getGlyphID(fBaseGlyphCount);
ATSGlyphScreenMetrics metrics;
ATSGlyphScreenMetrics screenMetrics;
ATSGlyphIdealMetrics idealMetrics;
OSStatus err = ATSUGlyphGetScreenMetrics(fStyle, 1, &glyphID, 0, true, true,
&metrics);
&screenMetrics);
if (noErr != err) {
set_glyph_metrics_on_error(glyph);
} else {
glyph->fAdvanceX = SkFloatToFixed(metrics.deviceAdvance.x);
glyph->fAdvanceY = -SkFloatToFixed(metrics.deviceAdvance.y);
glyph->fWidth = metrics.width;
glyph->fHeight = metrics.height;
glyph->fLeft = sk_float_round2int(metrics.topLeft.x);
glyph->fTop = -sk_float_round2int(metrics.topLeft.y);
return;
}
err = ATSUGlyphGetIdealMetrics(fStyle, 1, &glyphID, 0, &idealMetrics);
if (noErr != err) {
set_glyph_metrics_on_error(glyph);
return;
}
if (kNormal_Hints == fRec.fHints) {
glyph->fAdvanceX = SkFloatToFixed(screenMetrics.deviceAdvance.x);
glyph->fAdvanceY = -SkFloatToFixed(screenMetrics.deviceAdvance.y);
} else {
glyph->fAdvanceX = SkFloatToFixed(idealMetrics.advance.x);
glyph->fAdvanceY = -SkFloatToFixed(idealMetrics.advance.y);
}
// specify an extra 1-pixel border, go tive CG room for its antialiasing
// i.e. without this, I was seeing some edges chopped off!
glyph->fWidth = screenMetrics.width + 2;
glyph->fHeight = screenMetrics.height + 2;
glyph->fLeft = sk_float_round2int(screenMetrics.topLeft.x) - 1;
glyph->fTop = -sk_float_round2int(screenMetrics.topLeft.y) - 1;
}
void SkScalerContext_Mac::generateImage(const SkGlyph& glyph)
{
SkAutoMutexAcquire ac(gFTMutex);
SkASSERT(fLayout);
bzero(glyph.fImage, glyph.fHeight * glyph.rowBytes());
CGContextRef contextRef = ::CGBitmapContextCreate(glyph.fImage,
glyph.fWidth, glyph.fHeight, 8,
glyph.rowBytes(), fGrayColorSpace,
kCGImageAlphaNone);
if (!contextRef) {
SkASSERT(false);
return;
}
::CGContextSetGrayFillColor(contextRef, 1.0, 1.0);
::CGContextSetTextDrawingMode(contextRef, kCGTextFill);
CGGlyph glyphID = glyph.getGlyphID();
CGFontRef fontRef = CGFontCreateWithPlatformFont(&fRec.fFontID);
CGContextSetFont(contextRef, fontRef);
CGContextSetFontSize(contextRef, 1);
CGContextSetTextMatrix(contextRef, fTransform);
CGContextShowGlyphsAtPoint(contextRef, -glyph.fLeft,
glyph.fTop + glyph.fHeight, &glyphID, 1);
::CGContextRelease(contextRef);
}
static void convert_metrics(SkPaint::FontMetrics* dst,
@ -315,35 +359,6 @@ void SkScalerContext_Mac::generateFontMetrics(SkPaint::FontMetrics* mx,
}
}
void SkScalerContext_Mac::generateImage(const SkGlyph& glyph)
{
SkAutoMutexAcquire ac(gFTMutex);
SkASSERT(fLayout);
bzero(glyph.fImage, glyph.fHeight * glyph.rowBytes());
CGContextRef contextRef = ::CGBitmapContextCreate(glyph.fImage,
glyph.fWidth, glyph.fHeight, 8,
glyph.rowBytes(), fGrayColorSpace,
kCGImageAlphaNone);
if (!contextRef) {
SkASSERT(false);
return;
}
::CGContextSetGrayFillColor(contextRef, 1.0, 1.0);
::CGContextSetTextDrawingMode(contextRef, kCGTextFill);
CGGlyph glyphID = glyph.getGlyphID();
CGFontRef fontRef = CGFontCreateWithPlatformFont(&fRec.fFontID);
CGContextSetFont(contextRef, fontRef);
CGContextSetFontSize(contextRef, 1); //SkScalarToFloat(fRec.fTextSize));
CGContextSetTextMatrix(contextRef, fTransform);
CGContextShowGlyphsAtPoint(contextRef, -glyph.fLeft,
glyph.fTop + glyph.fHeight, &glyphID, 1);
::CGContextRelease(contextRef);
}
void SkScalerContext_Mac::generatePath(const SkGlyph& glyph, SkPath* path)
{
SkAutoMutexAcquire ac(gFTMutex);

View File

@ -65,6 +65,7 @@
007A7CC00F01658C00A2D6EE /* SampleVertices.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 007A7CB10F01658C00A2D6EE /* SampleVertices.cpp */; };
007A7CC10F01658C00A2D6EE /* SampleXfermodes.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 007A7CB20F01658C00A2D6EE /* SampleXfermodes.cpp */; };
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@ -178,6 +179,7 @@
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@ -212,6 +214,7 @@
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children = (
007A7CA40F01658C00A2D6EE /* SamplePicture.cpp */,
009CC9180F65918A002185BE /* SampleFontScalerTest.cpp */,
007A7CA50F01658C00A2D6EE /* SamplePoints.cpp */,
007A7CA70F01658C00A2D6EE /* SampleRegion.cpp */,
007A7CA80F01658C00A2D6EE /* SampleShaders.cpp */,
@ -509,6 +512,7 @@
0041CE3C0F00A12400695E8C /* SampleEncode.cpp in Sources */,
007A7CB60F01658C00A2D6EE /* SampleRegion.cpp in Sources */,
007C785E0F3B4C230004B142 /* SamplePathClip.cpp in Sources */,
009CC9190F65918A002185BE /* SampleFontScalerTest.cpp in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
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