Hi
Can anyone let me know how I can alter the code so that the transparent background of my .png images are preserved...at the moment they all have a black background.
Many thanks
what version of opencart are you using? there was a few issues with past releases.
But the current one, should be fine for transparent backgrounds. Its more likely to be a stylesheet issue adding a black background to your image div. Rather than the png file.
One way to know, is check the cached png images, do they contain a black background?
But the current one, should be fine for transparent backgrounds. Its more likely to be a stylesheet issue adding a black background to your image div. Rather than the png file.
One way to know, is check the cached png images, do they contain a black background?
Hi,SXGuy wrote:what version of opencart are you using? there was a few issues with past releases.
But the current one, should be fine for transparent backgrounds. Its more likely to be a stylesheet issue adding a black background to your image div. Rather than the png file.
One way to know, is check the cached png images, do they contain a black background?
Sorry which line am I looking for in the css.stylesheet?
If the cached images have a black background then it is rendering the images with a black background. Its not a stylesheet issue as I first thought.
look at system/library/image.php for this code, if its different, replace it with this
look at system/library/image.php for this code, if its different, replace it with this
Code: Select all
if (isset($this->info['mime']) && $this->info['mime'] == 'image/png') {
imagealphablending($this->image, false);
imagesavealpha($this->image, true);
$background = imagecolorallocatealpha($this->image, 255, 255, 255, 127);
imagecolortransparent($this->image, $background);
} else {
$background = imagecolorallocate($this->image, 255, 255, 255);
}Ok, only other thing I can think of, is your png images are not quite saved correctly. Are they saved as interlaced with a transparent background, before you have uploaded them?
If you can attach an original png image to this thread, ill take a look at it and see if that's the issue.
Apart from that, im out of ideas.
If you can attach an original png image to this thread, ill take a look at it and see if that's the issue.
Apart from that, im out of ideas.
I do appreciate any help you can give me with this. This is an example of one of the png images I uploaded...I haven't got a better example as have been deleting them since the problem started.
Thanks
Tim
Thanks
Tim
Attachments
250 e-100x100.png (9.62 KiB) Viewed 6326 times
I remember there was a problem with the transparency of png files in opencart, but the problem was in the "php resize" function, so it only happened with the automatic thumbnail creation... in other words when you add a category or product image. If you simply insert images into a description field it shoudn't happen.
You mentioned earlier that you had checked the image/cache/data folder. That folder only contains the thumbnail cache, embedded images always use the originals. This leads me to suspect you are only getting this problem during thumbnail creation - is that true? If you try inserting an image directly into a description field does it still have a black background?
You mentioned earlier that you had checked the image/cache/data folder. That folder only contains the thumbnail cache, embedded images always use the originals. This leads me to suspect you are only getting this problem during thumbnail creation - is that true? If you try inserting an image directly into a description field does it still have a black background?
Sorry I'm not sure I understand what you are saying regarding 'inserting an image directly into a description field'? I use the image uploader to load all my images and as soon as it uploads a png it turns the background black and it loses its transparency. How do I insert an image directly??
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