diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /dom/svg/SVGViewBoxSMILType.cpp | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/svg/SVGViewBoxSMILType.cpp')
-rw-r--r-- | dom/svg/SVGViewBoxSMILType.cpp | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/dom/svg/SVGViewBoxSMILType.cpp b/dom/svg/SVGViewBoxSMILType.cpp new file mode 100644 index 0000000000..1acf688da0 --- /dev/null +++ b/dom/svg/SVGViewBoxSMILType.cpp @@ -0,0 +1,133 @@ +/* -*- 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 "SVGViewBoxSMILType.h" + +#include "mozilla/SMILValue.h" +#include "nsDebug.h" +#include "SVGAnimatedViewBox.h" +#include <math.h> + +namespace mozilla { + +/*static*/ +SVGViewBoxSMILType SVGViewBoxSMILType::sSingleton; + +void SVGViewBoxSMILType::Init(SMILValue& aValue) const { + MOZ_ASSERT(aValue.IsNull(), "Unexpected value type"); + + aValue.mU.mPtr = new SVGViewBox(0.0f, 0.0f, 0.0f, 0.0f); + aValue.mType = this; +} + +void SVGViewBoxSMILType::Destroy(SMILValue& aValue) const { + MOZ_ASSERT(aValue.mType == this, "Unexpected SMIL value"); + delete static_cast<SVGViewBox*>(aValue.mU.mPtr); + aValue.mU.mPtr = nullptr; + aValue.mType = SMILNullType::Singleton(); +} + +nsresult SVGViewBoxSMILType::Assign(SMILValue& aDest, + const SMILValue& aSrc) const { + MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types"); + MOZ_ASSERT(aDest.mType == this, "Unexpected SMIL value"); + + const SVGViewBox* src = static_cast<const SVGViewBox*>(aSrc.mU.mPtr); + SVGViewBox* dst = static_cast<SVGViewBox*>(aDest.mU.mPtr); + *dst = *src; + return NS_OK; +} + +bool SVGViewBoxSMILType::IsEqual(const SMILValue& aLeft, + const SMILValue& aRight) const { + MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types"); + MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value"); + + const SVGViewBox* leftBox = static_cast<const SVGViewBox*>(aLeft.mU.mPtr); + const SVGViewBox* rightBox = static_cast<SVGViewBox*>(aRight.mU.mPtr); + return *leftBox == *rightBox; +} + +nsresult SVGViewBoxSMILType::Add(SMILValue& aDest, const SMILValue& aValueToAdd, + uint32_t aCount) const { + MOZ_ASSERT(aValueToAdd.mType == aDest.mType, "Trying to add invalid types"); + MOZ_ASSERT(aValueToAdd.mType == this, "Unexpected source type"); + + auto* dest = static_cast<SVGViewBox*>(aDest.mU.mPtr); + const auto* valueToAdd = static_cast<const SVGViewBox*>(aValueToAdd.mU.mPtr); + + if (dest->none || valueToAdd->none) { + return NS_ERROR_FAILURE; + } + + dest->x += valueToAdd->x * aCount; + dest->y += valueToAdd->y * aCount; + dest->width += valueToAdd->width * aCount; + dest->height += valueToAdd->height * aCount; + + return NS_OK; +} + +nsresult SVGViewBoxSMILType::ComputeDistance(const SMILValue& aFrom, + const SMILValue& aTo, + double& aDistance) const { + MOZ_ASSERT(aFrom.mType == aTo.mType, "Trying to compare different types"); + MOZ_ASSERT(aFrom.mType == this, "Unexpected source type"); + + const SVGViewBox* from = static_cast<const SVGViewBox*>(aFrom.mU.mPtr); + const SVGViewBox* to = static_cast<const SVGViewBox*>(aTo.mU.mPtr); + + if (from->none || to->none) { + return NS_ERROR_FAILURE; + } + + // We use the distances between the edges rather than the difference between + // the x, y, width and height for the "distance". This is necessary in + // order for the "distance" result that we calculate to be the same for a + // given change in the left side as it is for an equal change in the opposite + // side. See https://bugzilla.mozilla.org/show_bug.cgi?id=541884#c12 + + float dLeft = to->x - from->x; + float dTop = to->y - from->y; + float dRight = (to->x + to->width) - (from->x + from->width); + float dBottom = (to->y + to->height) - (from->y + from->height); + + aDistance = std::sqrt(dLeft * dLeft + dTop * dTop + dRight * dRight + + dBottom * dBottom); + + return NS_OK; +} + +nsresult SVGViewBoxSMILType::Interpolate(const SMILValue& aStartVal, + const SMILValue& aEndVal, + double aUnitDistance, + SMILValue& aResult) const { + MOZ_ASSERT(aStartVal.mType == aEndVal.mType, + "Trying to interpolate different types"); + MOZ_ASSERT(aStartVal.mType == this, "Unexpected types for interpolation"); + MOZ_ASSERT(aResult.mType == this, "Unexpected result type"); + + const SVGViewBox* start = static_cast<const SVGViewBox*>(aStartVal.mU.mPtr); + const SVGViewBox* end = static_cast<const SVGViewBox*>(aEndVal.mU.mPtr); + + if (start->none || end->none) { + return NS_ERROR_FAILURE; + } + + SVGViewBox* current = static_cast<SVGViewBox*>(aResult.mU.mPtr); + + float x = (start->x + (end->x - start->x) * aUnitDistance); + float y = (start->y + (end->y - start->y) * aUnitDistance); + float width = (start->width + (end->width - start->width) * aUnitDistance); + float height = + (start->height + (end->height - start->height) * aUnitDistance); + + *current = SVGViewBox(x, y, width, height); + + return NS_OK; +} + +} // namespace mozilla |