kath

Er, of course when you look more you find the answer. Think this was added since the last time I did this but it’s MUCH BETTER: http://bugssite.org/blog/2009/12/08/wordpress-custom-walker-tutorial/

So hopefully this will make this a little more findable.

This is how I have it implemented:

class Walker_Page_Greenfield extends Walker_Page {
	/**
	 * @see Walker::start_lvl()
	 * @since 2.1.0
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param int $depth Depth of page. Used for padding.
	 */
	function start_lvl(&$output, $depth) {
		$indent = str_repeat("\t", $depth);
		$output .= "\n$indent<div class=\"menuwide\"><ul>\n";
	}

	/**
	 * @see Walker::end_lvl()
	 * @since 2.1.0
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param int $depth Depth of page. Used for padding.
	 */
	function end_lvl(&$output, $depth) {
		$indent = str_repeat("\t", $depth);
		$output .= "$indent</ul></div>\n";
	}

	}
?>

And

`<?php $walker_pages = new Walker_Page_Greenfield; wp_list_pages(array(‘walker’ => $walker_pages, ‘title_li’ => ”, ‘child_of’ => ‘6’, ‘exclude’ => ‘218’)); ?>’

After more reading and thinking, I have figured this out more. The part of the code that actually does the cropping is:
imagecopyresampled( $newimage, $image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);

… in the media.php file I was talking about in my previous post. According to http://ca3.php.net/imagecopyresampled :

In other words, imagecopyresampled() will take an rectangular area from src_image of width src_w and height src_h at position (src_x ,src_y ) and place it in a rectangular area of dst_image of width dst_w and height dst_h at position (dst_x ,dst_y ).

… So I still want it to be centered horizontally at this point, but I want it to crop from the top of the images, so I will change $scr_y in media.php to 0 and we’ll see what we get …

I tried it and I can’t tell if it’s worked yet, but I didn’t ruin anything. I will update when I can figure it out. I would prefer to keep the variable and write some sort of plugin that will let me choose how to create the thumbnails per image … but that’s probably beyond me.

That’s not quite what I’m curious about, no, but thanks. There’s also a way to grab just the “first category” — let me find where I found this. Here we go:

Template Tags / get the category.

In that page it says:

Show the First Category Name Only

<?php
$category = get_the_category();
echo $category[0]->cat_name;
?>

(Echoes the first array ([0]) of $category.)

… but it does not specify how (by what mechanism — order of add, alphabetically etc) the first category is chosen. I just want to know in a specific sense what “
(Echoes the first array ([0]) of $category.) ” means, IE, are categories stored in the order they are saved to post in the database, or what? I think the normal category listings list alphabetically because they are set to list that way in the default theme. In the barebones theme I’m working with, the first category listed is both (by coincidence) the first category assigened to the post and the first category by id. The code used is Posted in <?php the_category(', ') ?> and it’s definitely not listing categories alphabetically.

That was why I put “first category” in quotes — because I want to get a specific category that could be termed the “first category” but I wanted to know how wordpress understands that term.

Hi. I’ve figured out how to edit the output of a function once it’s set up, but now I think I need to add some conditionals. Here are the related parts of code:

[long code removed – use something like http://wordpress.pastebin.ca do NOT post long code here!]

Sorry. Total PHP n00b :S.