alexpete
126 lines
3.1 KiB
C++
126 lines
3.1 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include "UiCanvasEditor_precompiled.h"
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#include "PivotPresets.h"
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namespace
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{
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static AZ::Vector2 presets[ PivotPresets::PresetIndexCount ] =
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{
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AZ::Vector2(0.0f, 0.0f),
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AZ::Vector2(0.5f, 0.0f),
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AZ::Vector2(1.0f, 0.0f),
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AZ::Vector2(0.0f, 0.5f),
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AZ::Vector2(0.5f, 0.5f),
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AZ::Vector2(1.0f, 0.5f),
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AZ::Vector2(0.0f, 1.0f),
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AZ::Vector2(0.5f, 1.0f),
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AZ::Vector2(1.0f, 1.0f)
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};
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static_assert(PivotPresets::PresetIndexCount == AZ_ARRAY_SIZE(presets), "presets and PresetIndexCount MUST be the same size.");
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} // anonymous namespace.
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namespace PivotPresets
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{
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const AZ::Vector2& PresetIndexToPivot(int i)
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{
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if ((i >= 0) && (i < PresetIndexCount))
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{
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return presets[ i ];
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}
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else
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{
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AZ_Assert(false, "Invalid pivot preset index");
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return presets[ 0 ];
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}
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}
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int PivotToPresetIndex(const AZ::Vector2& v)
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{
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float x = v.GetX();
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float y = v.GetY();
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if (x == 0.0f)
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{
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if (y == 0.0f)
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{
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// 0: AZ::Vector2(0.0f, 0.0f)
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return 0;
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}
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else if (y == 0.5f)
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{
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// 3: AZ::Vector2(0.0f, 0.5f)
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return 3;
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}
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else if (y == 1.0f)
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{
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// 6: AZ::Vector2(0.0f, 1.0f)
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return 6;
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}
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else
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{
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return -1;
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}
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}
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else if (x == 0.5f)
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{
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if (y == 0.0f)
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{
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// 1: AZ::Vector2(0.5f, 0.0f)
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return 1;
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}
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else if (y == 0.5f)
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{
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// 4: AZ::Vector2(0.5f, 0.5f)
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return 4;
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}
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else if (y == 1.0f)
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{
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// 7: AZ::Vector2(0.5f, 1.0f)
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return 7;
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}
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else
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{
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return -1;
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}
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}
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else if (x == 1.0f)
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{
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if (y == 0.0f)
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{
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// 2: AZ::Vector2(1.0f, 0.0f)
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return 2;
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}
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else if (y == 0.5f)
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{
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// 5: AZ::Vector2(1.0f, 0.5f)
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return 5;
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}
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else if (y == 1.0f)
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{
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// 8: AZ::Vector2(1.0f, 1.0f)
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return 8;
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}
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else
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{
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return -1;
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}
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}
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else
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{
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return -1;
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}
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}
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} // namespace PivotPresets
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