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Merge remote-tracking branch 'origin/master' into custom

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This commit is contained in:
Roy Tam 2019-08-17 13:34:39 +08:00
commit 18869d3807
54 changed files with 362 additions and 1459 deletions
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12
gfx/thebes/gfxMatrix.h
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@ -112,6 +112,18 @@ public:
_31 == 0.0 && _32 == 0.0;
}
/* Returns true if the matrix is a rectilinear transformation (i.e.
* grid-aligned rectangles are transformed to grid-aligned rectangles)
*/
bool IsRectilinear() const {
if (FuzzyEqual(_12, 0) && FuzzyEqual(_21, 0)) {
return true;
} else if (FuzzyEqual(_22, 0) && FuzzyEqual(_11, 0)) {
return true;
}
return false;
}
/**
* Inverts this matrix, if possible. Otherwise, the matrix is left
* unchanged.