FX_BOOL CQuartz2D::drawGraphicsString(void* graphics,
void* font,
FX_FLOAT fontSize,
FX_WORD* glyphIndices,
CGPoint* glyphPositions,
FX_INT32 charsCount,
FX_ARGB argb,
CFX_AffineMatrix* matrix )
{
if (!graphics) {
return FALSE;
}
CGContextRef context = (CGContextRef) graphics;
CGContextSetFont(context, (CGFontRef)font);
CGContextSetFontSize(context, fontSize);
if (matrix) {
CGAffineTransform m = CGContextGetTextMatrix(context);
m = CGAffineTransformConcat(m,
CGAffineTransformMake(matrix->a,
matrix->b,
matrix->c,
matrix->d,
matrix->e,
matrix->f));
CGContextSetTextMatrix(context, m);
}
FX_INT32 a, r, g, b;
ArgbDecode(argb, a, r, g, b);
CGContextSetRGBFillColor(context,
r / 255.f,
g / 255.f,
b / 255.f,
a / 255.f);
CGContextSaveGState(context);
#if CGFLOAT_IS_DOUBLE
CGPoint* glyphPositionsCG = new CGPoint[charsCount];
if (!glyphPositionsCG) {
return FALSE;
}
for (int index = 0; index < charsCount; ++index) {
glyphPositionsCG[index].x = glyphPositions[index].x;
glyphPositionsCG[index].y = glyphPositions[index].y;
}
#else
CGPoint* glyphPositionsCG = (CGPoint*)glyphPositions;
#endif
CGContextShowGlyphsAtPositions(context,
(CGGlyph *) glyphIndices,
glyphPositionsCG,
charsCount);
#if CGFLOAT_IS_DOUBLE
delete[] glyphPositionsCG;
#endif
CGContextRestoreGState(context);
return TRUE;
}
void QFontEngineMac::draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight)
{
QVarLengthArray<QFixedPoint> positions;
QVarLengthArray<glyph_t> glyphs;
QTransform matrix;
matrix.translate(x, y);
getGlyphPositions(ti.glyphs, ti.num_glyphs, matrix, ti.flags, glyphs, positions);
if (glyphs.size() == 0)
return;
CGContextSetFontSize(ctx, fontDef.pixelSize);
CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx);
CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, -1, 0, -paintDeviceHeight);
CGAffineTransformConcat(cgMatrix, oldTextMatrix);
if (synthesisFlags & QFontEngine::SynthesizedItalic)
cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -tanf(14 * acosf(0) / 90), 1, 0, 0));
cgMatrix = CGAffineTransformConcat(cgMatrix, multiEngine->transform);
CGContextSetTextMatrix(ctx, cgMatrix);
CGContextSetTextDrawingMode(ctx, kCGTextFill);
QVarLengthArray<CGSize> advances(glyphs.size());
QVarLengthArray<CGGlyph> cgGlyphs(glyphs.size());
for (int i = 0; i < glyphs.size() - 1; ++i) {
advances[i].width = (positions[i + 1].x - positions[i].x).toReal();
advances[i].height = (positions[i + 1].y - positions[i].y).toReal();
cgGlyphs[i] = glyphs[i];
}
advances[glyphs.size() - 1].width = 0;
advances[glyphs.size() - 1].height = 0;
cgGlyphs[glyphs.size() - 1] = glyphs[glyphs.size() - 1];
CGContextSetFont(ctx, cgFont);
CGContextSetTextPosition(ctx, positions[0].x.toReal(), positions[0].y.toReal());
CGContextShowGlyphsWithAdvances(ctx, cgGlyphs.data(), advances.data(), glyphs.size());
if (synthesisFlags & QFontEngine::SynthesizedBold) {
CGContextSetTextPosition(ctx, positions[0].x.toReal() + 0.5 * lineThickness().toReal(),
positions[0].y.toReal());
CGContextShowGlyphsWithAdvances(ctx, cgGlyphs.data(), advances.data(), glyphs.size());
}
CGContextSetTextMatrix(ctx, oldTextMatrix);
}
objVectorOop CGContextGetTextMatrix_wrap(CGContext* con) {
CGAffineTransform ctm = CGContextGetTextMatrix(con);
objVectorOop r = Memory->objVectorObj->cloneSize(6);
r->obj_at_put(0, as_floatOop(ctm.a ), false);
r->obj_at_put(1, as_floatOop(ctm.b ), false);
r->obj_at_put(2, as_floatOop(ctm.c ), false);
r->obj_at_put(3, as_floatOop(ctm.d ), false);
r->obj_at_put(4, as_floatOop(ctm.tx), false);
r->obj_at_put(5, as_floatOop(ctm.ty), false);
return r;
}
QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph)
{
const glyph_metrics_t br = boundingBox(glyph);
QImage im(qRound(br.width)+2, qRound(br.height)+2, QImage::Format_RGB32);
im.fill(0);
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4)
uint cgflags = kCGImageAlphaNoneSkipFirst;
#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version
if(QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4)
cgflags |= kCGBitmapByteOrder32Host;
#endif
#else
CGImageAlphaInfo cgflags = kCGImageAlphaNoneSkipFirst;
#endif
CGContextRef ctx = CGBitmapContextCreate(im.bits(), im.width(), im.height(),
8, im.bytesPerLine(), colorspace,
cgflags);
CGColorSpaceRelease(colorspace);
CGContextSetFontSize(ctx, fontDef.pixelSize);
CGContextSetShouldAntialias(ctx, fontDef.pointSize > qt_antialiasing_threshold && !(fontDef.styleStrategy & QFont::NoAntialias));
CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx);
CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, 1, 0, 0);
CGAffineTransformConcat(cgMatrix, oldTextMatrix);
if (synthesisFlags & QFontEngine::SynthesizedItalic)
cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, tanf(14 * acosf(0) / 90), 1, 0, 0));
cgMatrix = CGAffineTransformConcat(cgMatrix, multiEngine->transform);
CGContextSetTextMatrix(ctx, cgMatrix);
CGContextSetRGBFillColor(ctx, 1, 1, 1, 1);
CGContextSetTextDrawingMode(ctx, kCGTextFill);
CGContextSetFont(ctx, cgFont);
qreal pos_x = -br.x.toReal()+1, pos_y = im.height()+br.y.toReal();
CGContextSetTextPosition(ctx, pos_x, pos_y);
CGSize advance;
advance.width = 0;
advance.height = 0;
CGGlyph cgGlyph = glyph;
CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1);
if (synthesisFlags & QFontEngine::SynthesizedBold) {
CGContextSetTextPosition(ctx, pos_x + 0.5 * lineThickness().toReal(), pos_y);
CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1);
}
CGContextRelease(ctx);
QImage indexed(im.width(), im.height(), QImage::Format_Indexed8);
QVector<QRgb> colors(256);
for (int i=0; i<256; ++i)
colors[i] = qRgba(0, 0, 0, i);
indexed.setColorTable(colors);
for (int y=0; y<im.height(); ++y) {
uint *src = (uint*) im.scanLine(y);
uchar *dst = indexed.scanLine(y);
for (int x=0; x<im.width(); ++x) {
*dst = qGray(*src);
++dst;
++src;
}
}
return indexed;
}
