void QFontEngineMac::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics)
{
ATSUStyle unscaledStyle;
ATSUCreateAndCopyStyle(style, &unscaledStyle);
int emSquare = properties().emSquare.toInt();
const int maxAttributeCount = 4;
ATSUAttributeTag tags[maxAttributeCount + 1];
ByteCount sizes[maxAttributeCount + 1];
ATSUAttributeValuePtr values[maxAttributeCount + 1];
int attributeCount = 0;
Fixed size = FixRatio(emSquare, 1);
tags[attributeCount] = kATSUSizeTag;
sizes[attributeCount] = sizeof(size);
values[attributeCount] = &size;
++attributeCount;
Q_ASSERT(attributeCount < maxAttributeCount + 1);
OSStatus err = ATSUSetAttributes(unscaledStyle, attributeCount, tags, sizes, values);
Q_ASSERT(err == noErr);
Q_UNUSED(err);
GlyphID atsuGlyph = glyph;
ATSGlyphScreenMetrics atsuMetrics;
ATSUGlyphGetScreenMetrics(unscaledStyle, 1, &atsuGlyph, 0,
/* iForcingAntiAlias =*/ false,
/* iAntiAliasSwitch =*/true,
&atsuMetrics);
metrics->width = int(atsuMetrics.width);
metrics->height = int(atsuMetrics.height);
metrics->x = QFixed::fromReal(atsuMetrics.topLeft.x);
metrics->y = -QFixed::fromReal(atsuMetrics.topLeft.y);
metrics->xoff = QFixed::fromReal(atsuMetrics.deviceAdvance.x);
metrics->yoff = QFixed::fromReal(atsuMetrics.deviceAdvance.y);
QFixedPoint p;
::addGlyphsToPath(unscaledStyle, &glyph, &p, 1, path);
ATSUDisposeStyle(unscaledStyle);
}
static cairo_status_t
_cairo_atsui_font_glyph_bbox(void *abstract_font,
const cairo_glyph_t *glyphs,
int num_glyphs, cairo_box_t *bbox)
{
cairo_atsui_font_t *font = abstract_font;
cairo_fixed_t x1, y1, x2, y2;
int i;
bbox->p1.x = bbox->p1.y = CAIRO_MAXSHORT << 16;
bbox->p2.x = bbox->p2.y = CAIRO_MINSHORT << 16;
for (i = 0; i < num_glyphs; i++) {
GlyphID theGlyph = glyphs[i].index;
ATSGlyphScreenMetrics metrics;
ATSUGlyphGetScreenMetrics(font->style,
1, &theGlyph, 0, true, true, &metrics);
x1 = _cairo_fixed_from_double(glyphs[i].x + metrics.topLeft.x);
y1 = _cairo_fixed_from_double(glyphs[i].y - metrics.topLeft.y);
x2 = x1 + _cairo_fixed_from_double(metrics.height);
y2 = y1 + _cairo_fixed_from_double(metrics.width);
if (x1 < bbox->p1.x)
bbox->p1.x = x1;
if (y1 < bbox->p1.y)
bbox->p1.y = y1;
if (x2 > bbox->p2.x)
bbox->p2.x = x2;
if (y2 > bbox->p2.y)
bbox->p2.y = y2;
}
return CAIRO_STATUS_SUCCESS;
}
glyph_metrics_t QFontEngineMac::boundingBox(glyph_t glyph)
{
GlyphID atsuGlyph = glyph;
ATSGlyphScreenMetrics metrics;
ATSUGlyphGetScreenMetrics(style, 1, &atsuGlyph, 0,
/* iForcingAntiAlias =*/ false,
/* iAntiAliasSwitch =*/true,
&metrics);
// ### check again
glyph_metrics_t gm;
gm.width = int(metrics.width);
gm.height = int(metrics.height);
gm.x = QFixed::fromReal(metrics.topLeft.x);
gm.y = -QFixed::fromReal(metrics.topLeft.y);
gm.xoff = QFixed::fromReal(metrics.deviceAdvance.x);
gm.yoff = QFixed::fromReal(metrics.deviceAdvance.y);
return gm;
}
