static ATSUStyle
CreateSizedCopyOfStyle(ATSUStyle inStyle, cairo_matrix_t *scale)
{
ATSUStyle style;
OSStatus err;
// Set the style's size
CGAffineTransform theTransform =
CGAffineTransformMakeWithCairoFontScale(scale);
Fixed theSize =
FloatToFixed(CGSizeApplyAffineTransform
(CGSizeMake(1.0, 1.0), theTransform).height);
const ATSUAttributeTag theFontStyleTags[] = { kATSUSizeTag };
const ByteCount theFontStyleSizes[] = { sizeof(Fixed) };
ATSUAttributeValuePtr theFontStyleValues[] = { &theSize };
err = ATSUCreateAndCopyStyle(inStyle, &style);
err = ATSUSetAttributes(style,
sizeof(theFontStyleTags) /
sizeof(ATSUAttributeTag), theFontStyleTags,
theFontStyleSizes, theFontStyleValues);
return style;
}
//-----------------------------------------------------------------------------
void CGDrawContext::drawCGImageRef (CGContextRef context, CGImageRef image, CGLayerRef layer, double bitmapScaleFactor, const CRect& inRect, const CPoint& inOffset, float alpha, CBitmap* bitmap)
{
CRect rect (inRect);
CPoint offset (inOffset);
CGContextSetAlpha (context, (CGFloat)alpha*currentState.globalAlpha);
CGRect dest;
dest.origin.x = static_cast<CGFloat> (rect.left - offset.x);
dest.origin.y = static_cast<CGFloat> (-(rect.top) - (bitmap->getHeight () - offset.y));
dest.size.width = static_cast<CGFloat> (bitmap->getWidth ());
dest.size.height = static_cast<CGFloat> (bitmap->getHeight ());
CGRect clipRect;
clipRect.origin.x = static_cast<CGFloat> (rect.left);
clipRect.origin.y = static_cast<CGFloat> (-(rect.top) - rect.getHeight ());
clipRect.size.width = static_cast<CGFloat> (rect.getWidth ());
clipRect.size.height = static_cast<CGFloat> (rect.getHeight ());
if (bitmapScaleFactor != 1.)
{
CGContextConcatCTM (context, CGAffineTransformMakeScale (static_cast<CGFloat> (1./bitmapScaleFactor), static_cast<CGFloat> (1./bitmapScaleFactor)));
CGAffineTransform transform = CGAffineTransformMakeScale (static_cast<CGFloat> (bitmapScaleFactor), static_cast<CGFloat> (bitmapScaleFactor));
clipRect.origin = CGPointApplyAffineTransform (clipRect.origin, transform);
clipRect.size = CGSizeApplyAffineTransform (clipRect.size, transform);
dest.origin = CGPointApplyAffineTransform (dest.origin, transform);
dest.size = CGSizeApplyAffineTransform (dest.size, transform);
}
dest = pixelAlligned (dest);
clipRect = pixelAlligned (clipRect);
CGContextClipToRect (context, clipRect);
if (layer)
{
CGContextDrawLayerInRect (context, dest, layer);
}
else
{
CGContextDrawImage (context, dest, image);
}
}
FX_FLOAT CFX_QuartzDeviceDriver::getLineWidth(const CFX_GraphStateData * graphState, CGAffineTransform ctm)
{
FX_FLOAT lineWidth = graphState->m_LineWidth;
if (graphState->m_LineWidth <= 0.f) {
CGSize size;
size.width = 1;
size.height = 1;
CGSize temp = CGSizeApplyAffineTransform(size, ctm);
CGFloat x = 1 / temp.width;
CGFloat y = 1 / temp.height;
lineWidth = x > y ? x : y;
}
return lineWidth;
}
void GraphicsContext::setPlatformShadow(const FloatSize& offset, float blur, const Color& color, ColorSpace colorSpace)
{
if (paintingDisabled())
return;
CGFloat xOffset = offset.width();
CGFloat yOffset = offset.height();
CGFloat blurRadius = blur;
CGContextRef context = platformContext();
if (!m_state.shadowsIgnoreTransforms) {
CGAffineTransform userToBaseCTM = wkGetUserToBaseCTM(context);
CGFloat A = userToBaseCTM.a * userToBaseCTM.a + userToBaseCTM.b * userToBaseCTM.b;
CGFloat B = userToBaseCTM.a * userToBaseCTM.c + userToBaseCTM.b * userToBaseCTM.d;
CGFloat C = B;
CGFloat D = userToBaseCTM.c * userToBaseCTM.c + userToBaseCTM.d * userToBaseCTM.d;
CGFloat smallEigenvalue = narrowPrecisionToCGFloat(sqrt(0.5 * ((A + D) - sqrt(4 * B * C + (A - D) * (A - D)))));
// Extreme "blur" values can make text drawing crash or take crazy long times, so clamp
blurRadius = min(blur * smallEigenvalue, narrowPrecisionToCGFloat(1000.0));
CGSize offsetInBaseSpace = CGSizeApplyAffineTransform(offset, userToBaseCTM);
xOffset = offsetInBaseSpace.width;
yOffset = offsetInBaseSpace.height;
}
// Work around <rdar://problem/5539388> by ensuring that the offsets will get truncated
// to the desired integer.
static const CGFloat extraShadowOffset = narrowPrecisionToCGFloat(1.0 / 128);
if (xOffset > 0)
xOffset += extraShadowOffset;
else if (xOffset < 0)
xOffset -= extraShadowOffset;
if (yOffset > 0)
yOffset += extraShadowOffset;
else if (yOffset < 0)
yOffset -= extraShadowOffset;
// Check for an invalid color, as this means that the color was not set for the shadow
// and we should therefore just use the default shadow color.
if (!color.isValid())
CGContextSetShadow(context, CGSizeMake(xOffset, yOffset), blurRadius);
else
CGContextSetShadowWithColor(context, CGSizeMake(xOffset, yOffset), blurRadius, cachedCGColor(color, colorSpace));
}
JNIEXPORT void JNICALL OS_NATIVE(CGSizeApplyAffineTransform)
(JNIEnv *env, jclass that, jobject arg0, jfloatArray arg1, jobject arg2)
{
CGSize _arg0, *lparg0=NULL;
jfloat *lparg1=NULL;
CGSize _arg2, *lparg2=NULL;
OS_NATIVE_ENTER(env, that, CGSizeApplyAffineTransform_FUNC);
if (arg0) if ((lparg0 = getCGSizeFields(env, arg0, &_arg0)) == NULL) goto fail;
if (arg1) if ((lparg1 = (*env)->GetFloatArrayElements(env, arg1, NULL)) == NULL) goto fail;
if (arg2) if ((lparg2 = getCGSizeFields(env, arg2, &_arg2)) == NULL) goto fail;
*(CGSize *)lparg2 = CGSizeApplyAffineTransform(*(CGSize *)lparg0, *(CGAffineTransform *)lparg1);
fail:
if (arg2 && lparg2) setCGSizeFields(env, arg2, lparg2);
if (arg1 && lparg1) (*env)->ReleaseFloatArrayElements(env, arg1, lparg1, 0);
OS_NATIVE_EXIT(env, that, CGSizeApplyAffineTransform_FUNC);
}
