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Bug 360050 Implement SVGMatrix::RotateFromVector, FlipX, FlipY. patch by KUROSAWA, Takeshi(taken) <taken.spc@gmail.com> r=tor, sr=roc

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This commit is contained in:
masayuki%d-toybox.com 2006-11-26 13:49:26 +00:00
parent e10511cfaf
commit ee68ae9c23
1 changed files with 33 additions and 13 deletions
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46
content/svg/content/src/nsSVGMatrix.cpp
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@ -62,6 +62,9 @@ public:
protected:
float mA, mB, mC, mD, mE, mF;
// implementation helpers:
nsresult RotateRadians(float rad, nsIDOMSVGMatrix **_retval);
};
//----------------------------------------------------------------------
@ -252,34 +255,36 @@ NS_IMETHODIMP nsSVGMatrix::ScaleNonUniform(float scaleFactorX, float scaleFactor
/* nsIDOMSVGMatrix rotate (in float angle); */
NS_IMETHODIMP nsSVGMatrix::Rotate(float angle, nsIDOMSVGMatrix **_retval)
{
double ca = cos( angle*radPerDegree );
double sa = sin( angle*radPerDegree );
return NS_NewSVGMatrix(_retval,
(float) (mA*ca + mC*sa), (float) (mB*ca + mD*sa),
(float) (mC*ca - mA*sa), (float) (mD*ca - mB*sa),
mE, mF);
RotateRadians(angle*radPerDegree, _retval);
}
/* nsIDOMSVGMatrix rotateFromVector (in float x, in float y); */
NS_IMETHODIMP nsSVGMatrix::RotateFromVector(float x, float y, nsIDOMSVGMatrix **_retval)
{
NS_NOTYETIMPLEMENTED("nsSVGMatrix::RotateFromVector");
return NS_ERROR_NOT_IMPLEMENTED;
if (x == 0.0 || y == 0.0)
return NS_ERROR_DOM_SVG_INVALID_VALUE_ERR;
double rad = atan2(y, x);
RotateRadians(rad, _retval);
}
/* nsIDOMSVGMatrix flipX (); */
NS_IMETHODIMP nsSVGMatrix::FlipX(nsIDOMSVGMatrix **_retval)
{
NS_NOTYETIMPLEMENTED("nsSVGMatrix::FlipX");
return NS_ERROR_NOT_IMPLEMENTED;
return NS_NewSVGMatrix(_retval,
-mA, -mB,
mC, mD,
mE, mF);
}
/* nsIDOMSVGMatrix flipY (); */
NS_IMETHODIMP nsSVGMatrix::FlipY(nsIDOMSVGMatrix **_retval)
{
NS_NOTYETIMPLEMENTED("nsSVGMatrix::FlipY");
return NS_ERROR_NOT_IMPLEMENTED;
return NS_NewSVGMatrix(_retval,
mA, mB,
-mC, -mD,
mE, mF);
}
/* nsIDOMSVGMatrix skewX (in float angle); */
@ -320,3 +325,18 @@ nsSVGMatrix::GetValueString(nsAString& aValue)
NS_NOTYETIMPLEMENTED("nsSVGMatrix::GetValueString");
return NS_ERROR_NOT_IMPLEMENTED;
}
//----------------------------------------------------------------------
// Implementation helpers:
nsresult
nsSVGMatrix::RotateRadians(float rad, nsIDOMSVGMatrix **_retval)
{
double ca = cos(rad);
double sa = sin(rad);
return NS_NewSVGMatrix(_retval,
(float) (mA*ca + mC*sa), (float) (mB*ca + mD*sa),
(float) (mC*ca - mA*sa), (float) (mD*ca - mB*sa),
mE, mF);
}