| /* |
| * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
| * (C) 2000 Antti Koivisto (koivisto@kde.org) |
| * (C) 2000 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com) |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_TRANSFORMS_TRANSLATE_TRANSFORM_OPERATION_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_TRANSFORMS_TRANSLATE_TRANSFORM_OPERATION_H_ |
| |
| #include "third_party/blink/renderer/platform/geometry/length.h" |
| #include "third_party/blink/renderer/platform/geometry/length_functions.h" |
| #include "third_party/blink/renderer/platform/transforms/transform_operation.h" |
| #include "third_party/blink/renderer/platform/wtf/casting.h" |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT TranslateTransformOperation final |
| : public TransformOperation { |
| public: |
| static scoped_refptr<TranslateTransformOperation> Create(const Length& tx, |
| const Length& ty, |
| OperationType type) { |
| return base::AdoptRef(new TranslateTransformOperation(tx, ty, 0, type)); |
| } |
| |
| static scoped_refptr<TranslateTransformOperation> Create(const Length& tx, |
| const Length& ty, |
| double tz, |
| OperationType type) { |
| return base::AdoptRef(new TranslateTransformOperation(tx, ty, tz, type)); |
| } |
| |
| bool operator==(const TranslateTransformOperation& other) const { |
| return *this == static_cast<const TransformOperation&>(other); |
| } |
| |
| BoxSizeDependency BoxSizeDependencies() const override { |
| return CombineDependencies( |
| (x_.IsPercentOrCalc() ? kDependsWidth : kDependsNone), |
| (y_.IsPercentOrCalc() ? kDependsHeight : kDependsNone)); |
| } |
| |
| double X(const FloatSize& border_box_size) const { |
| return FloatValueForLength(x_, border_box_size.Width()); |
| } |
| double Y(const FloatSize& border_box_size) const { |
| return FloatValueForLength(y_, border_box_size.Height()); |
| } |
| |
| const Length& X() const { return x_; } |
| const Length& Y() const { return y_; } |
| double Z() const { return z_; } |
| |
| void Apply(TransformationMatrix& transform, |
| const FloatSize& border_box_size) const override { |
| transform.Translate3d(X(border_box_size), Y(border_box_size), Z()); |
| } |
| |
| static bool IsMatchingOperationType(OperationType type) { |
| return type == kTranslate || type == kTranslateX || type == kTranslateY || |
| type == kTranslateZ || type == kTranslate3D; |
| } |
| |
| scoped_refptr<TranslateTransformOperation> ZoomTranslate(double factor); |
| |
| OperationType GetType() const override { return type_; } |
| OperationType PrimitiveType() const final { return kTranslate3D; } |
| |
| private: |
| bool operator==(const TransformOperation& o) const override { |
| if (!IsSameType(o)) |
| return false; |
| const TranslateTransformOperation* t = |
| static_cast<const TranslateTransformOperation*>(&o); |
| return x_ == t->x_ && y_ == t->y_ && z_ == t->z_; |
| } |
| |
| scoped_refptr<TransformOperation> Accumulate( |
| const TransformOperation& other) override; |
| scoped_refptr<TransformOperation> Blend( |
| const TransformOperation* from, |
| double progress, |
| bool blend_to_identity = false) override; |
| scoped_refptr<TransformOperation> Zoom(double factor) final { |
| return ZoomTranslate(factor); |
| } |
| |
| bool PreservesAxisAlignment() const final { return true; } |
| bool IsIdentityOrTranslation() const final { return true; } |
| |
| TranslateTransformOperation(const Length& tx, |
| const Length& ty, |
| double tz, |
| OperationType type) |
| : x_(tx), y_(ty), z_(tz), type_(type) { |
| DCHECK(IsMatchingOperationType(type)); |
| } |
| |
| bool HasNonTrivial3DComponent() const override { return z_ != 0.0; } |
| |
| Length x_; |
| Length y_; |
| double z_; |
| OperationType type_; |
| }; |
| |
| template <> |
| struct DowncastTraits<TranslateTransformOperation> { |
| static bool AllowFrom(const TransformOperation& transform) { |
| return TranslateTransformOperation::IsMatchingOperationType( |
| transform.GetType()); |
| } |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_TRANSFORMS_TRANSLATE_TRANSFORM_OPERATION_H_ |