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Home » Developing U++ » U++ Developers corner » Animated GIF support, anybody?
Re: Animated GIF support, anybody? [message #26979 is a reply to message #26969] Wed, 16 June 2010 14:15 Go to previous messageGo to previous message
koldo is currently offline  koldo
Messages: 3372
Registered: August 2008
Senior Veteran
Hello Mirek

Here I enclose you the files changed.

Just for testing (do not consider it a serious player Smile ) I have used the next simple code. It shows 100 frames repeating them if the gif have less frames. Delay is considered but aspect is not.

	FileIn in(fileName);
	One<StreamRaster> raster = StreamRaster::OpenAny(in);
	int ind = 0;
	for (int i = 0; i < 100; ++i) {
		raster->SeekPage(ind);
		image = raster->GetImage();
		
		Refresh();
		Ctrl::ProcessEvents();

		int delay = raster->GetPageDelay(ind);
		if (delay <= 0)
			Sleep(100);
		else
			Sleep(delay*10);
		
		if (ind < raster->GetPageCount()-1)
			ind++;
		else
			ind = 0;				
	}


I have added two new virtual functions:

virtual int GetPageAspect(int n);
virtual int GetPageDelay(int n); 



In GIF format it is defined a delay per frame, but an aspect ratio for all frame set, so a GetAspect(void) version would be valid.

  • Attachment: GifFiles.7z
    (Size: 10.27KB, Downloaded 268 times)


Best regards
IƱaki
 
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