62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright (c) 2016-2018 Easy2D - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "Transform.h"
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namespace easy2d
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{
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namespace math
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{
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Transform::Transform()
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: position()
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, size()
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, scale_x(1.f)
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, scale_y(1.f)
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, rotation(0)
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, skew_x(0)
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, skew_y(0)
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, pivot_x(0)
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, pivot_y(0)
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{
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}
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Matrix Transform::ToMatrix() const
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{
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auto pivot = Vector2(size.width * pivot_x, size.height * pivot_y);
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return Matrix().Scale(scale_x, scale_y, pivot)
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.Skew(skew_x, skew_y, pivot)
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.Rotate(rotation, pivot)
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.Translate(position - pivot);
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}
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bool Transform::operator==(const Transform & other) const
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{
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return position == other.position &&
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size == other.size &&
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scale_x == other.scale_x &&
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scale_y == other.scale_y &&
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skew_x == other.skew_x &&
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skew_y == other.skew_y &&
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rotation == other.rotation &&
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pivot_x == other.pivot_x &&
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pivot_y == other.pivot_y;
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}
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}
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} |