Move remaining classes in graphics/transforms to platform/

Source/core/platform/graphics/transforms/RotateTransformOperation.cpp

-/*
- * 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 "core/platform/graphics/transforms/RotateTransformOperation.h"
-
-#include "platform/animation/AnimationUtilities.h"
-#include "wtf/MathExtras.h"
-#include <algorithm>
-
-using namespace std;
-
-namespace WebCore {
-
-PassRefPtr<TransformOperation> RotateTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity)
-{
-    if (from && !from->isSameType(*this))
-        return this;
-
-    if (blendToIdentity)
-        return RotateTransformOperation::create(m_x, m_y, m_z, m_angle - m_angle * progress, m_type);
-
-    const RotateTransformOperation* fromOp = static_cast<const RotateTransformOperation*>(from);
-
-    // Optimize for single axis rotation
-    if (!fromOp || (fromOp->m_x == 0 && fromOp->m_y == 0 && fromOp->m_z == 1) ||
-                   (fromOp->m_x == 0 && fromOp->m_y == 1 && fromOp->m_z == 0) ||
-                   (fromOp->m_x == 1 && fromOp->m_y == 0 && fromOp->m_z == 0)) {
-        double fromAngle = fromOp ? fromOp->m_angle : 0;
-        return RotateTransformOperation::create(fromOp ? fromOp->m_x : m_x,
-                                                fromOp ? fromOp->m_y : m_y,
-                                                fromOp ? fromOp->m_z : m_z,
-                                                WebCore::blend(fromAngle, m_angle, progress), m_type);
-    }
-
-    const RotateTransformOperation* toOp = this;
-
-    // Create the 2 rotation matrices
-    TransformationMatrix fromT;
-    TransformationMatrix toT;
-    fromT.rotate3d((fromOp ? fromOp->m_x : 0),
-        (fromOp ? fromOp->m_y : 0),
-        (fromOp ? fromOp->m_z : 1),
-        (fromOp ? fromOp->m_angle : 0));
-
-    toT.rotate3d((toOp ? toOp->m_x : 0),
-        (toOp ? toOp->m_y : 0),
-        (toOp ? toOp->m_z : 1),
-        (toOp ? toOp->m_angle : 0));
-
-    // Blend them
-    toT.blend(fromT, progress);
-
-    // Extract the result as a quaternion
-    TransformationMatrix::DecomposedType decomp;
-    toT.decompose(decomp);
-
-    // Convert that to Axis/Angle form
-    double x = -decomp.quaternionX;
-    double y = -decomp.quaternionY;
-    double z = -decomp.quaternionZ;
-    double length = sqrt(x * x + y * y + z * z);
-    double angle = 0;
-
-    if (length > 0.00001) {
-        x /= length;
-        y /= length;
-        z /= length;
-        angle = rad2deg(acos(decomp.quaternionW) * 2);
-    } else {
-        x = 0;
-        y = 0;
-        z = 1;
-    }
-    return RotateTransformOperation::create(x, y, z, angle, Rotate3D);
-}
-
-} // namespace WebCore