Smart Backgrounds support

[gjh42]

For the case of foreground image switching, this from the v3.0 readme tells how to use it:

----------------------------------------------------------------------------------------------
To switch Foreground images instead of Backgrounds:

Call the smart_backgrounds() function from any file where page-dependent coding is desired.
Include string arguments if you want to use other than '.gif' images or look for other than 'bg' files.

<?php echo zen_image(DIR_WS_TEMPLATE_IMAGES . 'smartsidebox' . smart_backgrounds('.jpg','sidebox') . '.jpg', 'Your alt text');?>

will output

<img src="http://yourdomain.com/includes/templates/your_template/images/smartsidebox_page5.jpg" alt="Your alt text">

on ez-page id 5 if smartsidebox_page5.jpg exists. Combine this with an "if" statement

$smart_image = smart_backgrounds('.jpg','sidebox');
if ($smart_image == '_page5') {
echo zen_image(DIR_WS_TEMPLATE_IMAGES . 'smartsidebox' . $smart_image . '.jpg', 'Your alt text');
}

to show the content only on ez-page id 5 if smartsidebox_page5.jpg exists.

if (substr_count($smart_image,'_page')) {
echo zen_image(DIR_WS_TEMPLATE_IMAGES . 'smartsidebox' . $smart_image . '.jpg', 'Your alt text');
}

will show the content on any ez-page if an appropriate smartsidebox_page.jpg file exists.
Name and save images as described above.
For foreground images, you do not need to make individual stylesheet rules.
----------------------------------------------------------------------------------------------

You could use

<?php echo zen_image(DIR_WS_TEMPLATE_IMAGES . 'smartlogo' . smart_backgrounds('.jpg','logo') . '.jpg', 'Your alt text');?>

with images like smartlogo_13_27.jpg to give a custom logo for subcategory cPath 13_27.

[cfsheridan]

Glenn,

Thank you for the quick feedback. I'll check out the 3.0 code and make it work.

cfs

[cfsheridan]

Still having a bit of trouble.

The images I am trying to vary are the logo images. Looking over the code in 3.0, I revised my branding section of tpl_header.php to include the following:

<!--bof-branding display-->

<tr align="right">
<td>


<div id="lwrapper">

<div id="logo">

<?php echo '<a href="' . HTTP_SERVER . DIR_WS_CATALOG . '">' . zen_image(DIR_WS_TEMPLATE_IMAGES . 'smartimg' . smart_backgrounds('.jpg','img') . '.jpg', HEADER_ALT_TEXT, HEADER_LOGO_WIDTH, HEADER_LOGO_HEIGHT) . '</a>'; ?></div>
    
<br class="clearBoth" />
</div>

</td>
</tr>


<!--eof-branding display-->

It hangs up the site completely. Something is not working with

smart_backgrounds('.jpg','img')

I've got it working with the function removed from the code.

[cfsheridan]

Ok, it's not hanging up if the smart_backgrounds_functions is in the /includes/functions/extra_functions folder

if it is in
/includes/functions/extra_functions/mytemplate/

it hangs up.

Even so, while it is working, I cannot get it to report back a value other than null, regardless of the page I am on.

Color me confused.

[gjh42]

What image names do you have, and where are they saved?
You do want a base image named (in this case) smartimg.jpg, for display when there is no specific image matching a page. If there is no match, the function will return null, and the base name and extension will be used.

There is no template override available in /includes/functions/, so
/includes/functions/extra_functions/smart_backgrounds_functions.php as the readme describes is correct. The zip has the extra folder. I have corrected this and reposted the zip.

[cfsheridan]

What image names do you have, and where are they saved?
You do want a base image named (in this case) smartimg.jpg, for display when there is no specific image matching a page. If there is no match, the function will return null, and the base name and extension will be used.

Image names are like this
smartimg.jpg
smartimg_11.jpg
smartimg_shippinginfo.jpg
etc.

Images are saved in includes/templates/custom/images/

The function is returning null regardless of the page I am on, so the base image is the only one displayed. So the code is working, it's just that the function is returning null regardless.

I guessed that there shouldn't be an override, since the site locked every time I tried to use the function in the override folder.

[gjh42]

This is a bit annoying. I threw the not-yet-tested 3.0 zip up in another thread with a request to let me know about any problems. 33 people downloaded it, but not one came back with a question.

Moving the code from tpl_main_page to a function broke it, as $current_page_base is not available inside a function without special arrangements. $_GET['main_page'] is available everywhere, so I have switched the function to use that, and it now works correctly. I have also improved the readme with a note about the base image for foreground image switching.