82 lines
2.5 KiB
Ucode
82 lines
2.5 KiB
Ucode
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/**
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* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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*
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* This is a simple thumbnail renderer that uses a specified icon as the
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* thumbnail view for a resource.
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*/
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class IconThumbnailRenderer extends ThumbnailRenderer
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native;
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/**
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* Name of the texture to load and use as the icon
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*/
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var String IconName;
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/**
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* This is the icon once it has been loaded
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*/
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var Texture2D Icon;
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cpptext
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{
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protected:
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/**
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* Returns the icon for this icon renderer instance. Loads it if it
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* isn't already loaded
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*
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* @param A valid icon or the default texture if it couldn't be loaded
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*/
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inline UTexture2D* GetIcon(void)
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{
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// If this hasn't been loaded yet, load it
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if (Icon == NULL)
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{
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Icon = LoadObject<UTexture2D>(NULL,*IconName,NULL,LOAD_None,NULL);
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// Just in case the resource is bogus, check and return the default
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if (Icon == NULL)
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{
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Icon = GWorld->GetWorldInfo()->DefaultTexture;
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}
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}
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return Icon;
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}
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public:
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/**
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* Calculates the size the thumbnail would be at the specified zoom level
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*
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* @param Object the object the thumbnail is of
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* @param PrimType ignored
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* @param Zoom the current multiplier of size
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* @param OutWidth the var that gets the width of the thumbnail
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* @param OutHeight the var that gets the height
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*/
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virtual void GetThumbnailSize(UObject* Object,EThumbnailPrimType,
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FLOAT Zoom,DWORD& OutWidth,DWORD& OutHeight)
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{
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OutWidth = appTrunc(Zoom * (FLOAT)GetIcon()->SizeX);
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OutHeight = appTrunc(Zoom * (FLOAT)GetIcon()->SizeY);
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}
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/**
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* Draws a thumbnail for the object that was specified
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*
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* @param Object the object to draw the thumbnail for
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* @param PrimType ignored
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* @param X the X coordinate to start drawing at
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* @param Y the Y coordinate to start drawing at
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* @param Width the width of the thumbnail to draw
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* @param Height the height of the thumbnail to draw
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* @param Viewport ignored
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* @param Canvas the render interface to draw with
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* @param BackgroundType type of background for the thumbnail
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* @param PreviewBackgroundColor background color for material previews
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* @param PreviewBackgroundColorTranslucent background color for translucent material previews
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*/
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virtual void Draw(UObject* Object,EThumbnailPrimType,INT X,INT Y,
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DWORD Width,DWORD Height,FRenderTarget*,FCanvas* Canvas,
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EThumbnailBackgroundType BackgroundType,
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FColor PreviewBackgroundColor,
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FColor PreviewBackgroundColorTranslucent);
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}
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