add_image_size crop position not working - javascript

I'm trying to hard crop images (315px by 600px) on my custom theme WordPress site so that the left top of the image appears on my main page (and the full image is used on the individual post pages). However, the images still appear centered. In my functions file I am using:
function invadingholland_setup() {
add_theme_support('post-thumbnails');
add_image_size('post-cartoon', 200, 200, array('left', 'top'));
}
add_action('after_setup_theme', 'invadingholland_setup');
...and in my loop I am using:
<div class="post-thumbnail">
<?php the_post_thumbnail('thumbnail-cartoon'); ?>
</div>
... and then this CSS around it:
.post-thumbnail {
margin: 0px 10px 0px 0px;
width: 200px;
height: 200px;
float: left;
text-align: left;
border: 1px;
border-style: solid;
border-color: #000;
}
...and I've tried regenerating all my images. If I play around with the sizes in my add_image_size code I do see a change but noting changes if I put different values into the array. I've also confirmed with my hoster that I have php-gd.
And just to make things even stranger it works as it should on my local test server on my laptop but not on the real site.
I'm stomped as to why it is not working. Am I missing a java script? Is it a wordpress setting? Can anyone help? An example of the problem can be seen here: http://www.invadingholland.com in my top two posts.
Thanks

Try hooking it through a function to the after_setup_theme hook.
function mkwilson_setup_theme() {
add_theme_support( 'post-thumbnails' );
add_image_size( 'post-cartoon', 200, 200, array('left', 'top') );
}
add_action( 'after_setup_theme', 'mkwilson_setup_theme' );
Also check that you are calling your post thumbnail correctly in the loop.
One More note:
add_image_size('post-cartoon', 200, 200, array('left', 'top'), true);
The true in the end is not necessary because when you have mentioned the array with left and top it means the image will be hard cropped 200px wide and 200px tall

It took a while but I found out what it was. The Photon module that is part of Jetpack was somehow forcing things to crop from the center. As soon as I turned it off the image was cropped from the left as it is supposed to be.

Related

Is there a way to achieve smoother transitions between images using lightbox2?

I'm using Lightbox2: http://lokeshdhakar.com/projects/lightbox2/.
The plugin seems to have been written in a way that produces a 'flash' effect when navigating to a new image in a collection. I believe this is because the old image simply disappears, rather than fading out first or crossfading (this would be ideal) with the new image that is fading in.
For a demo of this flaw, just view the example on the Lightbox2 link above.
Is there a way to add some sort of fade out transition when the user advances to the next image? As a developer rather unskilled in JS, what could I add to the lightbox.js script that would allow me to achieve 100% smooth transitions between images?
I can't work out a way to fade out the image like you suggested, but I think this really helps to avoid the white flash between images.
In the lightbox.css file between lines 43 and 51, simply change the background colour to black, or something similar, basically meaning you'll get a black flash instead of white. If you still want a white border around the image, just add one here (You'll also need to remove lines 59 to 61). So you'll end up with this:
.lb-outerContainer {
position: relative;
background-color: black;
*zoom: 1;
width: 250px;
height: 250px;
margin: 0 auto;
border-radius: 4px;
border: 4px solid white;
}
Also, if you're not happy with the fade in speed, take a look at line 313 in the lightbox.js file.
Specifically on line 316, change ('slow') to a numerical value e.g. (800).
// Display the image and its details and begin preload neighboring images.
Lightbox.prototype.showImage = function() {
this.$lightbox.find('.lb-loader').stop(true).hide();
this.$lightbox.find('.lb-image').fadeIn('slow');
this.updateNav();
this.updateDetails();
this.preloadNeighboringImages();
this.enableKeyboardNav();
};

Is it possible to make a see-through window using HTML/JS/CSS?

I need to make a see-through window when user click in a given position of the screen, something like this:
It is, I need to highlight an arbitrary area in the screen (with a fixed width and height) in the position where the user clicks.
I have two options:
Use a plugin to take screenshots (like these).
Create 4 grayed boxes.
I don't like none of these options for different reasons:
The use of these plugins exceds my needs and adds an extra page load time and undesired complexity.
Manage these boxes may be complex in a future and browser compatibility may be an issue.
So, my question is, is there any way to do this in a simple manner using HTML (HTML5 and canvas is ok), CSS and Javascript/Jquery? A specific Jquery plugin will be an option due I could forget the maintenance of this code.
I did this once, I am not sure everyone will agree with my implementation but it worked for me at the time:
Create a div in the location you want, set height and width (for window effect);
position the div in the place you wish and then just add outline to it.
body {
background-image: url(http://lorempixel.com/800/800/nature/5/);
background-size: cover;
}
.windowDiv {
position: absolute;
top: 100px;
left: 100px;
height: 300px;
width: 300px;
outline: 4000px solid rgba(0, 0, 0, 0.5);
}
<div class="windowDiv"></div>
EDIT: use background-color rather than opacity.
2nd EDIT: as A.Wolf suggested you should use outline instead of border for easier positioning.

CSS and JS - Extend background image beyond div

I'm currently trying to find a workaround to having arrows on Niall Doherty's Coda Slider 2 to highlight the selected tab. Initially I tried doing this with images on the header image, although whilst it looked fine in Safari on my Mac, it wasn't central on other devices (see www.lukekendalldesign.co.uk/pss/productsandservices)
I tried creating this using CSS arrows but that proved rather difficult, so I've found a workaround using a background image, but I've come across yet another problem.
http://cl.ly/HovO (Sorry, I can't upload images - newbie!)
Please refer to the above linked screenshot. The lighter grey triangle that matches the background is part of the header image. The black triangle is positioned using the following CSS code:
.coda-nav ul li a.current {
border-top-right-radius: 10px;
border-top-left-radius: 10px;
color: white;
height: 60px;
z-index: 20000;
background: url(../images/triangle.png) no-repeat 50% 100%;
position: relative;
overflow: visible;
}
What I'm trying to do, is position this black arrow where the grey image arrow is (if that makes sense at all?) How can I do this?
I have tried adding margins and padding, however it extends the grey background and doesn't push the background image black triangle down.
Whilst I have found solutions similar, none seem to apply because the class .current is applied using the following JS:
// If we need a tabbed nav
$('#coda-nav-' + sliderCount + ' a').each(function(z) {
// What happens when a nav link is clicked
$(this).bind("click", function() {
navClicks++;
$(this).addClass('current').parents('ul').find('a').not($(this)).removeClass('current');
offset = - (panelWidth*z);
alterPanelHeight(z);
currentPanel = z + 1;
$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
if (!settings.crossLinking) { return false }; // Don't change the URL hash unless cross-linking is specified
});
});
I would very much appreciate any help anyone can offer me on this - as it's a JS issue it's something that's a bit out of my depth! :(
I have tried this in Firefox using fire bug on windows. I think there are 2 problems. The first is that the margin on the ul element should be 167px (the black arrow is not in a nice place in the image (middle is at 232 px did you mean this?).
The the arrow just needs moving down which I did by setting the back ground position to be:
url("../images/triangle.png") no-repeat scroll 50px 60px transparent hope this helps.

Galleria Deletion Icon

I've been working with the Galleria package to create a image gallery. I'm now wanting to add a deletion tool so that a user can delete any image they so desire.
Using this demo as a baseline, I've taken the elements of code which I need and tried to incorporate it into my gallery page here. The problem is, is that I cannot get the 'bin' icon to appear at the bottom of each image, and hence I'm unable to see whether the function which makes the image disappear from screen actually works. I don't need the code that deletes the image from the server. I'll be dealing with that later on.
I'm really quite new to Javacript and jQuery, so please feel free to speak down to me. But I've been working on this for weeks now and I just can't find a solution.
I just wondered whether someone could perhaps look at this and let me know where I'm going wrong.
Many thanks and regards
adding this style to your CSS rule:
.btn-delete {
width: 14px; height: 14px;
margin: 38px 0 0 66px;
position: absolute;
}
.icon-remove { background-position: -312px 0; }
.icon-white { background-image: url('http://twitter.github.com/bootstrap/assets/img/glyphicons-halflings-white.png'); }
and in your jQuery:
$(".galleria-image").append(
"<span class='btn-delete icon-remove icon-white'></span>");
$(".btn-delete").live("click", function() {
var img = $(this).closest(".galleria-image").find("img");
alert('Deleting image... ' + $(img).attr("src"));
return false;
});
this will do something like:
Now, you can simply send an ajax request using $.get() for example, passing the ID/SRC of the image that the user wanted to delete and refresh your code/remove all images that belong to that selected one.

Random Header image on Page Refresh, CSS jquery javascript?

I need help finding code for my web page. I have a "customize.css" page which has code for loading the header image. But the header loads on a "header.asp", which is then loaded on the index page "default.asp". I guess my question is what can I use to generate, one of four of the header images I have created, randomly on each page reload/refresh for a header?
This code is from my "customize.css" file. After I get the code, what do I put in the "background-image:" for it to load to the page?
#header {
color: #FFF;
height: 350px;
background-color: transparent;
background-image: WHAT DO I PUT IN HERE?;
background-position: left top;
background-repeat: no-repeat;
}
I have searched the net forum after forum for the past week in search of an answer but have yet to get one. Anyone have any ideas? Thanks
I'd go simple. Define 4 different classes, each with a different background image. In your header ASP script, select one of the 4 classes at random, and output that class into your code. It's simple, the images will cache as they are displayed, and because you avoid JavaScript, it works for 100% of browsers/users. For a small project, it's easy to maintain.
Now, if you get into 100 different background images, you would want to do something different.
If it were me, I would create a separate web service to serve a random image. I would use PHP, but I assume you can do it in ASP).
#header {
background-image: url(/yourWebService.asp);
}
Have the service select one of the images at random, and return it accordingly.
The only way of doing that in the css is by calling a URL that returns the random image. Something like:
#header { color: #FFF; height: 350px; background-color: transparent; background-image: "/loadimage"; background-position: left top; background-repeat: no-repeat; }
But then you must code a service at /loadimage that returns the image.
It will be much more easy change the image at the page load via javascript. Assuming you have the images img0.jpg, img1.jpg, img2.jpg and img3.jpg at the images directory, you could do:
You can do:
<body onload="document.body.background = '/images/img'+Math.floor(Math.random()*4)+'.jpg';" />
See the random image header of this page
I am using a specify class for change the background-position css property.

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