[Typo3-dev] use IM combine funtion in an extension

[Zach Davis]

We've been thinking about releasing it -- it would need some cleaning up 
to be ready for the public, but if there's a demand, we'd certainly be 
willing to do it.

Zach


Wengrzik, Andreas wrote:
> hi zach!
> 
> This gallery looks great!
> Its fast too. So will it be released in the repository or is it a work for a client of you without permission to publish?
> And is it also still under development or finished yet?
> 
> I´m still using lz_gallery but with some hardcoded changes :/ so it is now very slow...
> 
> But thanks for your function i will try it!!
> 
> 
> 
>>-----Original Message-----
>>From: Zach Davis [mailto:zach at castironcoding.com]
>>Sent: Tuesday, February 22, 2005 3:37 PM
>>To: typo3-dev at lists.netfielders.de
>>Subject: Re: [Typo3-dev] use IM combine funtion in an extension
>>
>>
>>I recently made a gallery extension, and I spent a lot of 
>>time trying to 
>>use gifbuilder to create a watermark. In the end, I decided 
>>not to do it 
>>with gifbuilder -- first, it didn't make sense to create gifs (256 
>>colors max) for photos in an image gallery. Second, it was slow and 
>>difficult to work with.
>>
>>In the end, we decided to modify a function we found at 
>>http://www.phpgeek.com/articles.php?content_id=6 and add some caching 
>>(which, as far as we were concerned, was the big plus of 
>>using gifbuilder).
>>
>>I'll include the function we used, for what it's worth, below. This 
>>approach also allowed the gallery to determine whether the watermark 
>>should be place horizontally or vertically, depending on the 
>>size of the 
>>image.
>>
>>	function watermark($srcfilename, $newname, $watermarks, 
>>$quality) {
>>		$imageInfo = getimagesize($srcfilename);
>>		$width = $imageInfo[0];
>>		$height = $imageInfo[1];
>>		
>>		// find a watermark that fits the image, first 
>>try horizontal, then 
>>vertical
>>
>>		$logoinfo = getimagesize($watermarks[0]);
>>		$logowidth = $logoinfo[0];
>>		$logoheight = $logoinfo[1];
>>		$watermarkKey = 0;
>>		
>>		if($logowidth > $width) {
>>			$logoinfo = getimagesize($watermarks[1]);
>>			$logowidth = $logoinfo[0];
>>			$logoheight = $logoinfo[1];
>>			$watermarkKey = 1;
>>		}
>>
>>		$horizextra =$width - $logowidth;
>>		$vertextra =$height - $logoheight;
>>		$horizmargin =  round($horizextra / 2);
>>		$vertmargin =  round($vertextra / 2);
>>		$photoImage = ImageCreateFromJPEG($srcfilename);
>>		ImageAlphaBlending($photoImage, true);
>>		$logoImage = 
>>ImageCreateFromPNG($watermarks[$watermarkKey]);
>>		$logoW = ImageSX($logoImage);
>>		$logoH = ImageSY($logoImage);
>>		ImageCopy($photoImage, $logoImage, 
>>$horizmargin, $vertmargin, 0, 0, 
>>$logoW, $logoH);
>>		ImageJPEG($photoImage,$newname, $quality);
>>		ImageDestroy($photoImage);
>>		ImageDestroy($logoImage);
>>}
>>
>>
>>To see it in action, check out:
>>http://ostudio.com/index.php?id=7&no_cache=1&view=single&cat_u
> 
> id=0&sub_cat_uid=3&image_uid=354
> 
> best,
> Zach
> 
> 
> 
> Wengrzik, Andreas wrote:
> 
>>Hello!
>>
>>I try to use the combin function in a gallery extension... but with the image .params options i can
>>only use the 
>>
>>$this->imgconf['file.']['params'] = '-gravity SouthEast -font Tahoma -pointsize 11 -draw "fill black  text  1,1  \'myText\' text  0,0  \'myText\' fill white  text -1,-1 \'myText\'"';
>>
>>
>>this looks a little big like an watermark, but i need to combine two image to get an transparent watermark - that will look much better than only text in an image.
>>I also want to use an image not only text...
>>
>>Any suggestions how to get it work??
>>Anyone done this before?
>>
>>Thanks a lot!!
>>
>>bye
>>
>>-andreas
> 
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