Rect
PathCairo::GetBounds(const Matrix &aTransform) const
{
CairoTempMatrix(*mPathContext, mTransform);
double x1, y1, x2, y2;
cairo_path_extents(*mPathContext, &x1, &y1, &x2, &y2);
Rect bounds(Float(x1), Float(y1), Float(x2 - x1), Float(y2 - y1));
return aTransform.TransformBounds(bounds);
}
bool
PathCairo::ContainsPoint(const Point &aPoint, const Matrix &aTransform) const
{
CairoTempMatrix(*mPathContext, mTransform);
Matrix inverse = aTransform;
inverse.Invert();
Point transformed = inverse * aPoint;
// Needs the correct fill rule set.
cairo_set_fill_rule(*mPathContext, GfxFillRuleToCairoFillRule(mFillRule));
return cairo_in_fill(*mPathContext, transformed.x, transformed.y);
}
Rect
PathCairo::GetStrokedBounds(const StrokeOptions &aStrokeOptions,
const Matrix &aTransform) const
{
CairoTempMatrix(*mPathContext, mTransform);
double x1, y1, x2, y2;
SetCairoStrokeOptions(*mPathContext, aStrokeOptions);
cairo_stroke_extents(*mPathContext, &x1, &y1, &x2, &y2);
Rect bounds((Float)x1, (Float)y1, (Float)(x2 - x1), (Float)(y2 - y1));
return aTransform.TransformBounds(bounds);
}
bool
PathCairo::StrokeContainsPoint(const StrokeOptions &aStrokeOptions,
const Point &aPoint,
const Matrix &aTransform) const
{
CairoTempMatrix(*mPathContext, mTransform);
Matrix inverse = aTransform;
inverse.Invert();
Point transformed = inverse * aPoint;
SetCairoStrokeOptions(*mPathContext, aStrokeOptions);
return cairo_in_stroke(*mPathContext, transformed.x, transformed.y);
}
