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147 lines
5.2 KiB
C++
147 lines
5.2 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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#pragma once
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#include <LyShine/Bus/UiVisualBus.h>
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#include <LyShine/Bus/UiRenderBus.h>
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#include <LyShine/Bus/UiTransformBus.h>
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#include <LyShine/UiComponentTypes.h>
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#include <LyShine/IRenderGraph.h>
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#include <LyShineExamples/UiCustomImageBus.h>
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#include <AzCore/Component/Component.h>
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#include <AzCore/Serialization/SerializeContext.h>
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#include <AzCore/Math/Vector2.h>
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#include <LmbrCentral/Rendering/MaterialAsset.h>
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class ITexture;
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class ISprite;
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namespace LyShineExamples
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{
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//! This component is an example of how to implement a custom component. It is a simple image
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//! component that takes UV coordinates instead of image and sprite types.
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class UiCustomImageComponent
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: public AZ::Component
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, public UiVisualBus::Handler
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, public UiRenderBus::Handler
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, public UiCustomImageBus::Handler
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, public UiTransformChangeNotificationBus::Handler
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{
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public: // member functions
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AZ_COMPONENT(UiCustomImageComponent, "{466B78EC-A85C-4112-A89D-FF2D7EDE650E}", AZ::Component);
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UiCustomImageComponent();
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~UiCustomImageComponent() override;
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// UiVisualInterface
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void ResetOverrides() override;
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void SetOverrideColor(const AZ::Color& color) override;
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void SetOverrideAlpha(float alpha) override;
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void SetOverrideSprite(ISprite* sprite, AZ::u32 cellIndex = 0) override;
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// ~UiVisualInterface
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// UiRenderInterface
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void Render(LyShine::IRenderGraph* renderGraph) override;
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// ~UiRenderInterface
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// UiCustomImageInterface
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AZ::Color GetColor() override;
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void SetColor(const AZ::Color& color) override;
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ISprite* GetSprite() override;
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void SetSprite(ISprite* sprite) override;
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AZStd::string GetSpritePathname() override;
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void SetSpritePathname(AZStd::string spritePath) override;
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UVRect GetUVs() override;
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void SetUVs(UVRect uvs) override;
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bool GetClamp() override;
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void SetClamp(bool clamp) override;
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// ~UiCustomImageInterface
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// UiTransformChangeNotification
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void OnCanvasSpaceRectChanged(AZ::EntityId entityId, const UiTransformInterface::Rect& oldRect, const UiTransformInterface::Rect& newRect) override;
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void OnTransformToViewportChanged() override;
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// ~UiTransformChangeNotification
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private: // static member functions
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static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided)
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{
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provided.push_back(AZ_CRC("UiVisualService", 0xa864fdf8));
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}
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static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatible)
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{
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incompatible.push_back(AZ_CRC("UiVisualService", 0xa864fdf8));
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}
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static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required)
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{
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required.push_back(AZ_CRC("UiElementService", 0x3dca7ad4));
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required.push_back(AZ_CRC("UiTransformService", 0x3a838e34));
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}
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static void Reflect(AZ::ReflectContext* context);
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private: // member functions
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void RenderToCache(LyShine::IRenderGraph* renderGraph);
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void RenderSingleQuad(LyShine::IRenderGraph* renderGraph, const AZ::Vector2* positions, const AZ::Vector2* uvs);
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bool IsPixelAligned();
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//! ChangeNotify callback for sprite pathname change
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void OnSpritePathnameChange();
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//! ChangeNotify callback for color change
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void OnColorChange();
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//! ChangeNotify callback for other settings that need to make render cache dirty
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void OnRenderSettingChange();
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//! Mark the render graph as dirty, this should be done when any change is made affects the structure of the graph
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void MarkRenderCacheDirty();
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//! Mark the render graph as dirty, this should be done when any change is made affects the structure of the graph
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void MarkRenderGraphDirty();
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// AZ::Component
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void Init() override;
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void Activate() override;
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void Deactivate() override;
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// ~AZ::Component
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AZ_DISABLE_COPY_MOVE(UiCustomImageComponent);
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private: // data
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AzFramework::SimpleAssetReference<LmbrCentral::TextureAsset> m_spritePathname;
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AZ::Color m_color;
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float m_alpha;
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UVRect m_uvs;
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bool m_clamp;
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ISprite* m_sprite;
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ISprite* m_overrideSprite;
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AZ::Color m_overrideColor;
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float m_overrideAlpha;
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// cached rendering data for performance optimization
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IRenderer::DynUiPrimitive m_cachedPrimitive;
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bool m_isRenderCacheDirty = true;
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};
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}
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