91 lines
2.1 KiB
Ucode
91 lines
2.1 KiB
Ucode
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/**
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* This class is a helper for downloading an image file via an HTTP URL
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*
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* Based on
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* John Haynes - War Drum Studios
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*/
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class KFHTTPImageDownloader extends Object
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native
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inherits(FTickableObject);
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cpptext
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{
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// FTickableObject interface
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/**
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* We're always tickable ...
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*/
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virtual UBOOL IsTickable() const
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{
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return TRUE;
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}
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virtual UBOOL IsTickableWhenPaused() const
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{
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return TRUE;
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}
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/**
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* Updates our download ...
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*
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* @param DeltaTime the amount of time that has passed since the last tick
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*/
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virtual void Tick(FLOAT DeltaTime);
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// Helper functions for loading the texture from binary data
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/**
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* Loads the texture as a PNG from the specified binary data
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*
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* @param Data the array of bytes that represent the downloaded texture data
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*/
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void LoadTexturePNG(TArray<BYTE> & Data);
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/**
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* Loads the texture as a BMP from the specified binary data
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*
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* @param Data the array of bytes that represent the downloaded texture data
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*/
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void LoadTextureBMP(TArray<BYTE> & Data);
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}
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/**
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* If set, gets called when the download has completed
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*/
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var private delegate<OnDownloadComplete> DownloadCompleteDelegate;
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/**
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* The object that handles the actual HTTP download
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*/
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var private native const pointer HttpDownloader{class FHttpDownloadBinary};
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/**
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* The texture that we loaded (don't access this until the DownloadCompleteDelegate has been triggered with success...)
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*/
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var Texture2D TheTexture;
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/**
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* Cached URL for the image
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*/
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var string ImageURL;
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/**
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* Template for the delegate to call when the download has completed
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*/
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delegate OnDownloadComplete(bool bWasSuccessful);
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/**
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* Downloads the image at the specified URL, and calls the specified delegate when the download completes
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*
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* @param ImgURL the url to download from
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* @param CompleteDelegate the delegate to call when the download completes
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*
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* @return true if the download has started, false if not
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*/
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native function bool DownloadImageFromURL(string ImgURL, delegate<OnDownloadComplete> CompleteDelegate);
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DefaultProperties
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{
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}
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