Part V: WordPress Toolbox in Java

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Part V: WordPress Toolbox
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Styling the Gallery
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Making the galleries included with the [gallery] shortcode look good is easy, assuming you ve configured your thumbnails according to the number of columns you ll be using. This is something you can choose when you re including the gallery, so you need to be wary of that. Actually styling the gallery is also pretty simple. The whole thing resides in a div with a number of identifying classes to use, one being called gallery itself. As is the norm in WordPress, there are unique IDs and classes as well, but you ll probably settle with div.gallery for your CSS needs. Moving on, each item in the gallery is enclosed in a dl.gallery-item, which in turns contains dt.gallery-icon, which has the linked thumbnail image, and possibly also a dd.gallerycaption if a caption is provided for the image in question. You get this for as many images you ve chosen to display in a row, then it all breaks down to a new row quite unceremoniously with a br tag with style="clear:both", and it begins again. That means that, for the thumbnail gallery listings, you need to style the following (listed hierarchically):
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div.gallery {} dl.gallery-item {} dt.gallery-icon {} dd.gallery-caption {}
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This is the code used by Notes Blog Core, with a subtle font color and size for the captions, and some white space in between because that s always nice to the eye. Naturally your design may be a lot flashier than this, adding background images, borders, and so on.
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div.gallery { margin-bottom: 14px; } dl.gallery-item {} dt.gallery-icon {} img.attachment-thumbnail { border:0; } dd.gallery-caption { margin-top: 8px; font-size: 12px; color: #777; font-style: italic; }
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Now, that s just one half of it. While you can configure your gallery thumbnails to link to the actual image, you can always choose to link to the attachment page. That s the one showing the image in your theme s design, which probably means that it will revert to either single.php or index.php since most themes lack the attachment.php template file, and very few have ones for video.php, image. php, and so on. To get your theme to be image-friendly, you really should add a link back to the post containing the actual gallery, and you should add Previous/Next links so the user can browse the gallery from image to image. Start with the Previous link. The following code fetches the post s parent, which is the actual post the attachment is attached to, and links it. Nothing fancy. You can t use the_permalink() of
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14: Fun with Images
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course, since that would indicate the attachment itself, while the_title() naturally is the image title. You probably want to make sure that your attachment template outputs that too:
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<a href="< php echo get_permalink($post->post_parent) >" title="< php echo get_the_title ($post->post_parent) >" rev="attachment"> < php echo get_the_title($post->post_parent) > </a>
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Speaking of outputs, the description you can fill out when uploading or editing an image is in fact output by the_content(), which means that you can add decent attachment support to your single.php or index.php template easily enough. Just use the is_attachment() conditional tag to check for it and output accordingly, and you ll be fine. Back to business: add those Previous and Next links for navigation within the gallery, in attachment image view. This is done with previous_image_link() and next_image_link(), both of which by default will output the thumbnail, linked, to the other target image. Here you re using div s to float the Previous and Next links to the left and right:
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<div class="left">< php next_image_link(); ></div> <div class="right">< php previous_image_link(); ></div>
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While the thumbnail output may be cool if tailored to the task, you may want to use text instead. Just pass nothing to the image size parameters (yes, it takes other sizes as well) and it will output the image post title, which is the name you gave it, instead. Or you can add another parameter to pass a custom text link, like this:
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<div class="left">< php next_image_link('', 'Next Image'); ></div> <div class="right">< php previous_image_link('', 'Previous Image'); ></div>
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That s about what you need to know to work with galleries on a WordPress site. The next natural step, after getting it to work with your theme, is pimping the whole affair using plugins.
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