From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- dom/svg/SVGOrientSMILType.cpp | 150 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 dom/svg/SVGOrientSMILType.cpp (limited to 'dom/svg/SVGOrientSMILType.cpp') diff --git a/dom/svg/SVGOrientSMILType.cpp b/dom/svg/SVGOrientSMILType.cpp new file mode 100644 index 000000000..8e69ef132 --- /dev/null +++ b/dom/svg/SVGOrientSMILType.cpp @@ -0,0 +1,150 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "SVGOrientSMILType.h" +#include "nsSMILValue.h" +#include "nsSVGAngle.h" +#include "nsDebug.h" +#include "mozilla/dom/SVGMarkerElement.h" +#include + +namespace mozilla { + +/*static*/ SVGOrientSMILType SVGOrientSMILType::sSingleton; + +void +SVGOrientSMILType::Init(nsSMILValue& aValue) const +{ + MOZ_ASSERT(aValue.IsNull(), "Unexpected value type"); + + aValue.mU.mOrient.mAngle = 0.0f; + aValue.mU.mOrient.mUnit = SVG_ANGLETYPE_UNSPECIFIED; + aValue.mU.mOrient.mOrientType = dom::SVG_MARKER_ORIENT_ANGLE; + aValue.mType = this; +} + +void +SVGOrientSMILType::Destroy(nsSMILValue& aValue) const +{ + NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value."); + aValue.mU.mPtr = nullptr; + aValue.mType = nsSMILNullType::Singleton(); +} + +nsresult +SVGOrientSMILType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const +{ + NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types."); + NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value."); + + aDest.mU.mOrient.mAngle = aSrc.mU.mOrient.mAngle; + aDest.mU.mOrient.mUnit = aSrc.mU.mOrient.mUnit; + aDest.mU.mOrient.mOrientType = aSrc.mU.mOrient.mOrientType; + return NS_OK; +} + +bool +SVGOrientSMILType::IsEqual(const nsSMILValue& aLeft, + const nsSMILValue& aRight) const +{ + NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types"); + NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value"); + + return + aLeft.mU.mOrient.mAngle == aRight.mU.mOrient.mAngle && + aLeft.mU.mOrient.mUnit == aRight.mU.mOrient.mUnit && + aLeft.mU.mOrient.mOrientType == aRight.mU.mOrient.mOrientType; +} + +nsresult +SVGOrientSMILType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd, + uint32_t aCount) const +{ + NS_PRECONDITION(aValueToAdd.mType == aDest.mType, + "Trying to add invalid types"); + NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type"); + + if (aDest.mU.mOrient.mOrientType != dom::SVG_MARKER_ORIENT_ANGLE || + aValueToAdd.mU.mOrient.mOrientType != dom::SVG_MARKER_ORIENT_ANGLE) { + // TODO: it would be nice to be able to add to auto angles + return NS_ERROR_FAILURE; + } + + // We may be dealing with two different angle units, so we normalize to + // degrees for the add: + float currentAngle = aDest.mU.mOrient.mAngle * + nsSVGAngle::GetDegreesPerUnit(aDest.mU.mOrient.mUnit); + float angleToAdd = aValueToAdd.mU.mOrient.mAngle * + nsSVGAngle::GetDegreesPerUnit(aValueToAdd.mU.mOrient.mUnit) * + aCount; + + // And then we give the resulting animated value the same units as the value + // that we're animating to/by (i.e. the same as aValueToAdd): + aDest.mU.mOrient.mAngle = (currentAngle + angleToAdd) / + nsSVGAngle::GetDegreesPerUnit(aValueToAdd.mU.mOrient.mUnit); + aDest.mU.mOrient.mUnit = aValueToAdd.mU.mOrient.mUnit; + + return NS_OK; +} + +nsresult +SVGOrientSMILType::ComputeDistance(const nsSMILValue& aFrom, + const nsSMILValue& aTo, + double& aDistance) const +{ + NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types"); + NS_PRECONDITION(aFrom.mType == this, "Unexpected source type"); + + if (aFrom.mU.mOrient.mOrientType != dom::SVG_MARKER_ORIENT_ANGLE || + aTo.mU.mOrient.mOrientType != dom::SVG_MARKER_ORIENT_ANGLE) { + // TODO: it would be nice to be able to compute distance with auto angles + return NS_ERROR_FAILURE; + } + + // Normalize both to degrees in case they're different angle units: + double from = aFrom.mU.mOrient.mAngle * + nsSVGAngle::GetDegreesPerUnit(aFrom.mU.mOrient.mUnit); + double to = aTo.mU.mOrient.mAngle * + nsSVGAngle::GetDegreesPerUnit(aTo.mU.mOrient.mUnit); + + aDistance = fabs(to - from); + + return NS_OK; +} + +nsresult +SVGOrientSMILType::Interpolate(const nsSMILValue& aStartVal, + const nsSMILValue& aEndVal, + double aUnitDistance, + nsSMILValue& aResult) const +{ + NS_PRECONDITION(aStartVal.mType == aEndVal.mType, + "Trying to interpolate different types"); + NS_PRECONDITION(aStartVal.mType == this, + "Unexpected types for interpolation."); + NS_PRECONDITION(aResult.mType == this, "Unexpected result type."); + + if (aStartVal.mU.mOrient.mOrientType != dom::SVG_MARKER_ORIENT_ANGLE || + aEndVal.mU.mOrient.mOrientType != dom::SVG_MARKER_ORIENT_ANGLE) { + // TODO: it would be nice to be able to handle auto angles too. + return NS_ERROR_FAILURE; + } + + float start = aStartVal.mU.mOrient.mAngle * + nsSVGAngle::GetDegreesPerUnit(aStartVal.mU.mOrient.mUnit); + float end = aEndVal.mU.mOrient.mAngle * + nsSVGAngle::GetDegreesPerUnit(aEndVal.mU.mOrient.mUnit); + float result = (start + (end - start) * aUnitDistance); + + // Again, we use the unit of the to/by value for the result: + aResult.mU.mOrient.mAngle = result / + nsSVGAngle::GetDegreesPerUnit(aEndVal.mU.mOrient.mUnit); + aResult.mU.mOrient.mUnit = aEndVal.mU.mOrient.mUnit; + + return NS_OK; +} + +} // namespace mozilla -- cgit v1.2.3