| /* |
| * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "MatrixTransformOperation.h" |
| |
| #include <algorithm> |
| #include <wtf/text/TextStream.h> |
| |
| namespace WebCore { |
| |
| bool MatrixTransformOperation::operator==(const TransformOperation& other) const |
| { |
| if (!isSameType(other)) |
| return false; |
| const MatrixTransformOperation& m = downcast<MatrixTransformOperation>(other); |
| return m_a == m.m_a && m_b == m.m_b && m_c == m.m_c && m_d == m.m_d && m_e == m.m_e && m_f == m.m_f; |
| } |
| |
| Ref<TransformOperation> MatrixTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity) |
| { |
| auto createOperation = [] (TransformationMatrix& to, TransformationMatrix& from, double progress) { |
| to.blend(from, progress); |
| return MatrixTransformOperation::create(to); |
| }; |
| |
| if (from && !from->isSameType(*this)) |
| return *this; |
| |
| // convert the TransformOperations into matrices |
| TransformationMatrix fromT; |
| TransformationMatrix toT(m_a, m_b, m_c, m_d, m_e, m_f); |
| if (from) { |
| const MatrixTransformOperation& m = downcast<MatrixTransformOperation>(*from); |
| fromT.setMatrix(m.m_a, m.m_b, m.m_c, m.m_d, m.m_e, m.m_f); |
| } |
| |
| if (blendToIdentity) |
| return createOperation(fromT, toT, progress); |
| return createOperation(toT, fromT, progress); |
| } |
| |
| void MatrixTransformOperation::dump(TextStream& ts) const |
| { |
| ts << "(" |
| << TextStream::FormatNumberRespectingIntegers(m_a) << ", " |
| << TextStream::FormatNumberRespectingIntegers(m_b) << ", " |
| << TextStream::FormatNumberRespectingIntegers(m_c) << ", " |
| << TextStream::FormatNumberRespectingIntegers(m_d) << ", " |
| << TextStream::FormatNumberRespectingIntegers(m_e) << ", " |
| << TextStream::FormatNumberRespectingIntegers(m_f) << ")"; |
| } |
| |
| } // namespace WebCore |