/* Helper function to process a matrix entry. */
static void
ProcessMatrix(gfx3DMatrix& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
bool& aCanStoreInRuleTree,
nsRect& aBounds)
{
NS_PRECONDITION(aData->Count() == 7, "Invalid array!");
gfxMatrix result;
/* Take the first four elements out of the array as floats and store
* them.
*/
result._11 = aData->Item(1).GetFloatValue();
result._12 = aData->Item(2).GetFloatValue();
result._21 = aData->Item(3).GetFloatValue();
result._22 = aData->Item(4).GetFloatValue();
/* The last two elements have their length parts stored in aDelta
* and their percent parts stored in aX[0] and aY[1].
*/
result._31 = ProcessTranslatePart(aData->Item(5),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width());
result._32 = ProcessTranslatePart(aData->Item(6),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height());
aMatrix.PreMultiply(result);
}
/* Helper function to process a matrix entry. */
/* static */ gfx3DMatrix
nsStyleTransformMatrix::ProcessMatrix(const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
PRBool& aCanStoreInRuleTree,
nsRect& aBounds, float aAppUnitsPerMatrixUnit,
PRBool *aPercentX, PRBool *aPercentY)
{
NS_PRECONDITION(aData->Count() == 7, "Invalid array!");
gfx3DMatrix result;
/* Take the first four elements out of the array as floats and store
* them.
*/
result._11 = aData->Item(1).GetFloatValue();
result._12 = aData->Item(2).GetFloatValue();
result._21 = aData->Item(3).GetFloatValue();
result._22 = aData->Item(4).GetFloatValue();
/* The last two elements have their length parts stored in aDelta
* and their percent parts stored in aX[0] and aY[1].
*/
ProcessTranslatePart(result._41, aData->Item(5),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width(), aAppUnitsPerMatrixUnit);
ProcessTranslatePart(result._42, aData->Item(6),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height(), aAppUnitsPerMatrixUnit);
return result;
}
/* Helper function to process a matrix entry. */
static void
ProcessMatrix(Matrix4x4& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
RuleNodeCacheConditions& aConditions,
TransformReferenceBox& aRefBox)
{
NS_PRECONDITION(aData->Count() == 7, "Invalid array!");
gfxMatrix result;
/* Take the first four elements out of the array as floats and store
* them.
*/
result._11 = aData->Item(1).GetFloatValue();
result._12 = aData->Item(2).GetFloatValue();
result._21 = aData->Item(3).GetFloatValue();
result._22 = aData->Item(4).GetFloatValue();
/* The last two elements have their length parts stored in aDelta
* and their percent parts stored in aX[0] and aY[1].
*/
result._31 = ProcessTranslatePart(aData->Item(5),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Width);
result._32 = ProcessTranslatePart(aData->Item(6),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Height);
aMatrix = result * aMatrix;
}
static void
ProcessTranslate3D(gfx3DMatrix& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
bool& aCanStoreInRuleTree,
nsRect& aBounds)
{
NS_PRECONDITION(aData->Count() == 4, "Invalid array!");
Point3D temp;
temp.x = ProcessTranslatePart(aData->Item(1),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width());
temp.y = ProcessTranslatePart(aData->Item(2),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height());
temp.z = ProcessTranslatePart(aData->Item(3),
aContext, aPresContext, aCanStoreInRuleTree,
0);
aMatrix.Translate(temp);
}
/* static */ gfx3DMatrix
nsStyleTransformMatrix::ProcessTranslate3D(const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
PRBool& aCanStoreInRuleTree,
nsRect& aBounds, float aAppUnitsPerMatrixUnit)
{
NS_PRECONDITION(aData->Count() == 4, "Invalid array!");
gfx3DMatrix temp;
ProcessTranslatePart(temp._41, aData->Item(1),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width(), aAppUnitsPerMatrixUnit);
ProcessTranslatePart(temp._42, aData->Item(2),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height(), aAppUnitsPerMatrixUnit);
ProcessTranslatePart(temp._43, aData->Item(3),
aContext, aPresContext, aCanStoreInRuleTree,
0, aAppUnitsPerMatrixUnit);
return temp;
}
static void
ProcessTranslate3D(Matrix4x4& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
RuleNodeCacheConditions& aConditions,
TransformReferenceBox& aRefBox)
{
NS_PRECONDITION(aData->Count() == 4, "Invalid array!");
Point3D temp;
temp.x = ProcessTranslatePart(aData->Item(1),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Width);
temp.y = ProcessTranslatePart(aData->Item(2),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Height);
temp.z = ProcessTranslatePart(aData->Item(3),
aContext, aPresContext, aConditions,
nullptr);
aMatrix.PreTranslate(temp);
}
/* Helper function to process a translatey function. */
/* static */ gfx3DMatrix
nsStyleTransformMatrix::ProcessTranslateY(const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
PRBool& aCanStoreInRuleTree,
nsRect& aBounds, float aAppUnitsPerMatrixUnit)
{
NS_PRECONDITION(aData->Count() == 2, "Invalid array!");
gfx3DMatrix temp;
/* There are two cases. If we have a number, we want our matrix to look
* like this:
*
* | 1 0 0 0 |
* | 0 1 0 0 |
* | 0 0 1 0 |
* | 0 dy 0 1 |
* So E = value
*
* Otherwise, we might have a percentage, so we want to set the dY component
* to the percent.
*/
ProcessTranslatePart(temp._42, aData->Item(1),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height(), aAppUnitsPerMatrixUnit);
return temp;
}
/* static */ gfx3DMatrix
nsStyleTransformMatrix::ProcessPerspective(const nsCSSValue::Array* aData,
nsStyleContext *aContext,
nsPresContext *aPresContext,
PRBool &aCanStoreInRuleTree,
float aAppUnitsPerMatrixUnit)
{
NS_PRECONDITION(aData->Count() == 2, "Invalid array!");
/* We want our matrix to look like this:
* | 1 0 0 0 |
* | 0 1 0 0 |
* | 0 0 1 -1/depth |
* | 0 0 0 1 |
*/
gfx3DMatrix temp;
float depth;
ProcessTranslatePart(depth, aData->Item(1), aContext,
aPresContext, aCanStoreInRuleTree,
0, aAppUnitsPerMatrixUnit);
NS_ASSERTION(depth > 0.0, "Perspective must be positive!");
temp._34 = -1.0/depth;
return temp;
}
static void
ProcessMatrix3D(Matrix4x4& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
RuleNodeCacheConditions& aConditions,
TransformReferenceBox& aRefBox)
{
NS_PRECONDITION(aData->Count() == 17, "Invalid array!");
Matrix4x4 temp;
temp._11 = aData->Item(1).GetFloatValue();
temp._12 = aData->Item(2).GetFloatValue();
temp._13 = aData->Item(3).GetFloatValue();
temp._14 = aData->Item(4).GetFloatValue();
temp._21 = aData->Item(5).GetFloatValue();
temp._22 = aData->Item(6).GetFloatValue();
temp._23 = aData->Item(7).GetFloatValue();
temp._24 = aData->Item(8).GetFloatValue();
temp._31 = aData->Item(9).GetFloatValue();
temp._32 = aData->Item(10).GetFloatValue();
temp._33 = aData->Item(11).GetFloatValue();
temp._34 = aData->Item(12).GetFloatValue();
temp._44 = aData->Item(16).GetFloatValue();
temp._41 = ProcessTranslatePart(aData->Item(13),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Width);
temp._42 = ProcessTranslatePart(aData->Item(14),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Height);
temp._43 = ProcessTranslatePart(aData->Item(15),
aContext, aPresContext, aConditions,
nullptr);
aMatrix = temp * aMatrix;
}
static void
ProcessMatrix3D(gfx3DMatrix& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
bool& aCanStoreInRuleTree,
nsRect& aBounds)
{
NS_PRECONDITION(aData->Count() == 17, "Invalid array!");
gfx3DMatrix temp;
temp._11 = aData->Item(1).GetFloatValue();
temp._12 = aData->Item(2).GetFloatValue();
temp._13 = aData->Item(3).GetFloatValue();
temp._14 = aData->Item(4).GetFloatValue();
temp._21 = aData->Item(5).GetFloatValue();
temp._22 = aData->Item(6).GetFloatValue();
temp._23 = aData->Item(7).GetFloatValue();
temp._24 = aData->Item(8).GetFloatValue();
temp._31 = aData->Item(9).GetFloatValue();
temp._32 = aData->Item(10).GetFloatValue();
temp._33 = aData->Item(11).GetFloatValue();
temp._34 = aData->Item(12).GetFloatValue();
temp._44 = aData->Item(16).GetFloatValue();
temp._41 = ProcessTranslatePart(aData->Item(13),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width());
temp._42 = ProcessTranslatePart(aData->Item(14),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height());
temp._43 = ProcessTranslatePart(aData->Item(15),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height());
aMatrix.PreMultiply(temp);
}
/* Helper function to process a translate function. */
/* static */ gfx3DMatrix
nsStyleTransformMatrix::ProcessTranslate(const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
PRBool& aCanStoreInRuleTree,
nsRect& aBounds, float aAppUnitsPerMatrixUnit)
{
NS_PRECONDITION(aData->Count() == 2 || aData->Count() == 3, "Invalid array!");
gfx3DMatrix temp;
ProcessTranslatePart(temp._41, aData->Item(1),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width(), aAppUnitsPerMatrixUnit);
/* If we read in a Y component, set it appropriately */
if (aData->Count() == 3) {
ProcessTranslatePart(temp._42, aData->Item(2),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height(), aAppUnitsPerMatrixUnit);
}
return temp;
}
static void
ProcessPerspective(gfx3DMatrix& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext *aContext,
nsPresContext *aPresContext,
bool &aCanStoreInRuleTree)
{
NS_PRECONDITION(aData->Count() == 2, "Invalid array!");
float depth = ProcessTranslatePart(aData->Item(1), aContext,
aPresContext, aCanStoreInRuleTree,
0);
aMatrix.Perspective(depth);
}
static void
ProcessPerspective(Matrix4x4& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext *aContext,
nsPresContext *aPresContext,
RuleNodeCacheConditions& aConditions)
{
NS_PRECONDITION(aData->Count() == 2, "Invalid array!");
float depth = ProcessTranslatePart(aData->Item(1), aContext,
aPresContext, aConditions,
nullptr);
aMatrix.Perspective(depth);
}
/* Helper function to process a translate function. */
static void
ProcessTranslate(gfx3DMatrix& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
bool& aCanStoreInRuleTree,
nsRect& aBounds)
{
NS_PRECONDITION(aData->Count() == 2 || aData->Count() == 3, "Invalid array!");
Point3D temp;
temp.x = ProcessTranslatePart(aData->Item(1),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Width());
/* If we read in a Y component, set it appropriately */
if (aData->Count() == 3) {
temp.y = ProcessTranslatePart(aData->Item(2),
aContext, aPresContext, aCanStoreInRuleTree,
aBounds.Height());
}
aMatrix.Translate(temp);
}
static void
ProcessTranslateZ(gfx3DMatrix& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
bool& aCanStoreInRuleTree)
{
NS_PRECONDITION(aData->Count() == 2, "Invalid array!");
Point3D temp;
temp.z = ProcessTranslatePart(aData->Item(1), aContext,
aPresContext, aCanStoreInRuleTree, 0);
aMatrix.Translate(temp);
}
/* Helper function to process a translate function. */
static void
ProcessTranslate(Matrix4x4& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
RuleNodeCacheConditions& aConditions,
TransformReferenceBox& aRefBox)
{
NS_PRECONDITION(aData->Count() == 2 || aData->Count() == 3, "Invalid array!");
Point3D temp;
temp.x = ProcessTranslatePart(aData->Item(1),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Width);
/* If we read in a Y component, set it appropriately */
if (aData->Count() == 3) {
temp.y = ProcessTranslatePart(aData->Item(2),
aContext, aPresContext, aConditions,
&aRefBox, &TransformReferenceBox::Height);
}
aMatrix.PreTranslate(temp);
}
static void
ProcessTranslateZ(Matrix4x4& aMatrix,
const nsCSSValue::Array* aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
RuleNodeCacheConditions& aConditions)
{
NS_PRECONDITION(aData->Count() == 2, "Invalid array!");
Point3D temp;
temp.z = ProcessTranslatePart(aData->Item(1), aContext,
aPresContext, aConditions,
nullptr);
aMatrix.PreTranslate(temp);
}
