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81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "SVGTransformList.h"
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#include "SVGTransformListParser.h"
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#include "nsString.h"
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#include "nsError.h"
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namespace mozilla {
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gfxMatrix
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SVGTransformList::GetConsolidationMatrix() const
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{
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// To benefit from Return Value Optimization and avoid copy constructor calls
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// due to our use of return-by-value, we must return the exact same object
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// from ALL return points. This function must only return THIS variable:
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gfxMatrix result;
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if (mItems.IsEmpty())
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return result;
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result = mItems[0].GetMatrix();
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if (mItems.Length() == 1)
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return result;
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for (uint32_t i = 1; i < mItems.Length(); ++i) {
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result.PreMultiply(mItems[i].GetMatrix());
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}
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return result;
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}
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nsresult
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SVGTransformList::CopyFrom(const SVGTransformList& rhs)
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{
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return CopyFrom(rhs.mItems);
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}
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nsresult
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SVGTransformList::CopyFrom(const nsTArray<nsSVGTransform>& aTransformArray)
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{
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if (!mItems.Assign(aTransformArray, fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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void
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SVGTransformList::GetValueAsString(nsAString& aValue) const
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{
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aValue.Truncate();
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uint32_t last = mItems.Length() - 1;
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for (uint32_t i = 0; i < mItems.Length(); ++i) {
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nsAutoString length;
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mItems[i].GetValueAsString(length);
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// We ignore OOM, since it's not useful for us to return an error.
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aValue.Append(length);
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if (i != last) {
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aValue.Append(' ');
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}
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}
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}
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nsresult
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SVGTransformList::SetValueFromString(const nsAString& aValue)
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{
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SVGTransformListParser parser(aValue);
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if (!parser.Parse()) {
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// there was a parse error.
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return NS_ERROR_DOM_SYNTAX_ERR;
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}
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return CopyFrom(parser.GetTransformList());
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}
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} // namespace mozilla
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