Matrix4x4
ReadTransforms(const nsCSSValueList* aList,
nsStyleContext* aContext,
nsPresContext* aPresContext,
RuleNodeCacheConditions& aConditions,
TransformReferenceBox& aRefBox,
float aAppUnitsPerMatrixUnit,
bool* aContains3dTransform)
{
Matrix4x4 result;
for (const nsCSSValueList* curr = aList; curr != nullptr; curr = curr->mNext) {
const nsCSSValue &currElem = curr->mValue;
if (currElem.GetUnit() != eCSSUnit_Function) {
NS_ASSERTION(currElem.GetUnit() == eCSSUnit_None &&
!aList->mNext,
"stream should either be a list of functions or a "
"lone None");
continue;
}
NS_ASSERTION(currElem.GetArrayValue()->Count() >= 1,
"Incoming function is too short!");
/* Read in a single transform matrix. */
MatrixForTransformFunction(result, currElem.GetArrayValue(), aContext,
aPresContext, aConditions, aRefBox,
aContains3dTransform);
}
float scale = float(nsPresContext::AppUnitsPerCSSPixel()) / aAppUnitsPerMatrixUnit;
result.PreScale(1/scale, 1/scale, 1/scale);
result.PostScale(scale, scale, scale);
return result;
}
/* static */ gfx3DMatrix
nsStyleTransformMatrix::ReadTransforms(const nsCSSValueList* aList,
nsStyleContext* aContext,
nsPresContext* aPresContext,
PRBool &aCanStoreInRuleTree,
nsRect& aBounds,
float aAppUnitsPerMatrixUnit)
{
gfx3DMatrix result;
for (const nsCSSValueList* curr = aList; curr != nsnull; curr = curr->mNext) {
const nsCSSValue &currElem = curr->mValue;
NS_ASSERTION(currElem.GetUnit() == eCSSUnit_Function,
"Stream should consist solely of functions!");
NS_ASSERTION(currElem.GetArrayValue()->Count() >= 1,
"Incoming function is too short!");
/* Read in a single transform matrix, then accumulate it with the total. */
result = MatrixForTransformFunction(currElem.GetArrayValue(), aContext,
aPresContext, aCanStoreInRuleTree,
aBounds, aAppUnitsPerMatrixUnit) * result;
}
return result;
}
gfx3DMatrix
ReadTransforms(const nsCSSValueList* aList,
nsStyleContext* aContext,
nsPresContext* aPresContext,
bool &aCanStoreInRuleTree,
nsRect& aBounds,
float aAppUnitsPerMatrixUnit)
{
gfx3DMatrix result;
for (const nsCSSValueList* curr = aList; curr != nullptr; curr = curr->mNext) {
const nsCSSValue &currElem = curr->mValue;
NS_ASSERTION(currElem.GetUnit() == eCSSUnit_Function,
"Stream should consist solely of functions!");
NS_ASSERTION(currElem.GetArrayValue()->Count() >= 1,
"Incoming function is too short!");
/* Read in a single transform matrix. */
MatrixForTransformFunction(result, currElem.GetArrayValue(), aContext,
aPresContext, aCanStoreInRuleTree, aBounds);
}
float scale = float(nsPresContext::AppUnitsPerCSSPixel()) / aAppUnitsPerMatrixUnit;
result.Scale(1/scale, 1/scale, 1/scale);
result.ScalePost(scale, scale, scale);
return result;
}
