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45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <AzCore/Math/Vector2.h>
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#include <LyShine/IDraw2d.h>
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//! Abstract base class for drag interactions in the UI Editor viewport window.
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class ViewportDragInteraction
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{
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public:
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enum class EndState
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{
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Inside,
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OutsideX, //!< Outside only on the X-axis
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OutsideY, //!< Outside only on the Y-axis
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OutsideXY, //!< Outside on both the X-axis and the Y-axis
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Canceled
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};
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public:
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ViewportDragInteraction(const AZ::Vector2& startMousePos);
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virtual ~ViewportDragInteraction();
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//! Update the interaction each time the mouse moves
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virtual void Update(const AZ::Vector2& mousePos) = 0;
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//! Render any display desired during the interaction
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virtual void Render(Draw2dHelper& draw2d);
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//! End the interaction
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virtual void EndInteraction(EndState endState);
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protected:
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AZ::Vector2 m_startMousePos;
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};
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