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  • Toggle classes with radio button in jQuery

    - by dardub
    I have a set of radio buttons where when I click a radio button, I want the label to change color or whatever. But when I click another radio button, the color goes away. Therefore I have something like this: jQuery('label').mouseup(function(){ jQuery(this).prev().attr('checked', 'checked'); jQuery('input').next().removeClass('selected'); jQuery('input:checked').next().addClass('selected'); }); if you need to see some html: <input type="radio" id="radio1" name="myRadio" value="option-1" /> <label for="radio1">Swing Gate</label> <input type="radio" id="radio2" name="myRadio" value="option-2" /> <label for="radio2">Swing Gate</label> This first removes 'selected' class from all the labels and then re-applies to only the checked labels. It works and is simple, but I was thinking this might not be the most efficient way of doing this. I imagine that javascript is iterating through each input element and using more resources than necessary. I'm curious if anyone knows of a common way of doing this more efficiently. I seem to be doing this type of thing quite often in my jQuery code. I've just been using jQuery for the past 3 months or so btw.

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  • For text-align:right; in TD, why does "style" work and "class" not?

    - by Will Fastie
    If I include this in a table cell: <td style="text-align: right; font-style: italic; color: maroon;">... the contents of the cell are aligned as I expect. If I include the following CSS: .right-notice { text-align: right; font-style: italic; color: maroon; } and this cell: <td class=".right-notice">... the contents of the cell are not right aligned. Why is this? What don't I know? If I change the CSS to replace text-align with float, that works. Thanks.

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  • Ruby forwarding method calls

    - by JP
    I have an instance of a master class which generates instances of a subclass, these subclasses need to forward some method calls back to the master instance. At the moment I have code looking something like this, but it feels like I should be able to do the same thing more efficiently (maybe with method_missing?) class Master def initalize(mynum) @mynum = mynum end def one_thing(subinstance) "One thing with #{subinstance.var} from #{@mynum}" end def four_things(subinstance) "Four things with #{subinstance.var} from #{@mynum}" end def many_things(times,subinstance) "#{times} things with #{subinstance.var} from #{@mynum}" end def make_a_sub(uniqueness) Subthing.new(uniqueness,self) end class Subthing def initialize(uniqueness,master) @u = uniqueness @master = master end # Here I'm forwarding method calls def one_thing master.one_thing(self) end def four_things master.four_things(self) end def many_things(times) master.many_things(times,self) end end end m = Master.new(42) s = m.make_a_sub("very") s.one_thing === m.one_thing(s) s.many_things(8) === m.many_things(8,s) I hope you can see what's going on here. I would use method_missing, but I'm not sure how to cope with the possibility of some calls having arguments and some not (I can't really rearrange the order of the arguments to the Master methods either) Thanks for reading!

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  • Browser Detection, do's and don'ts. Is this ok?

    - by JCOC611
    So, I understand that browser detection (ie. navigator.userAgent) shouldn't be used to decide which object method/property to use; yet, I want to set some simple CSS with JavaScript depending on the browser. However, it's not enough to justify a completely new StyleSheet. So is it OK if I use Browser Detection to decide what CSS to apply to an element? EDIT Ok, let's be SPECIFIC. I'm talking about a text-shadow inside a button (<input type="button"/>) The text inside the button isn't vertically centered in all browsers, so I tweak this with JS depending on the browser.

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  • C++: What is the size of an object of an empty class?

    - by Ashwin
    I was wondering what could be the size of an object of an empty class. It surely could not be 0 bytes since it should be possible to reference and point to it like any other object. But, how big is such an object? I used this small program: #include <iostream> using namespace std; class Empty {}; int main() { Empty e; cerr << sizeof(e) << endl; return 0; } The output I got on both Visual C++ and Cygwin-g++ compilers was 1 byte! This was a little surprising to me since I was expecting it to be of the size of the machine word (32 bits or 4 bytes). Can anyone explain why the size of 1 byte? Why not 4 bytes? Is this dependent on compiler or the machine too? Also, can someone give a more cogent reason for why an empty class object will not be of size 0 bytes?

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  • Constructors in Inner classes (implementing Interfaces)

    - by thepandaatemyface
    Hi, How would I go about writing a constructor for an inner class which is implementing an interface? I know I could make a whole new class, but I figure there's got to be a way to do something along the line of this: JButton b = new JButton(new AbstractAction() { public AbstractAction() { super("This is a button"); } public void actionPerformed(ActionEvent e) { System.out.println("button clicked"); } }); When I enter this it doesn't recognize the AbstractAction method as a constructor (compiler asks for return type). Anyone have an idea? Thanks

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  • How to specify 2 different positions for Colorbox or Fancybox on the same page?

    - by Eric
    I know this question has been asked before, but I'm having difficulty implementing it. I'm looking for a more specific answer. Here is my html code: <head> <meta charset=utf-8 /> <title>ColorBox Examples</title> <style type="text/css"> body{font:12px/1.2 Verdana, Arial, san-serrif; padding:0 10px;} a:link, a:visited{text-decoration:none; color:#416CE5; border-bottom:1px solid #416CE5;} h2{font-size:13px; margin:15px 0 0 0;} </style> <link media="screen" rel="stylesheet" href="colorbox.css" /> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <script src="../colorbox/jquery.colorbox.js"></script> <script> $(document).ready(function(){ //Examples of how to assign the ColorBox event to elements $(".example7").colorbox({width:"80%", height:"80%", iframe:true}); $(".example7").colorbox({width:"80%", height:"80%", iframe:true}); }); </script> </head> <body> <p><a class='example7' href="http://google.com">Outside Webpage 1 (Iframe)</a></p> <p><a class='example7' href="http://google.com">Outside Webpage 2 (Iframe)</a></p> (Excuse the wrong indentation - I had to mess with the formatting to get the body content to show up.) Here is my CSS code(default colorbox code): #colorbox, #cboxOverlay, #cboxWrapper{position:absolute; top:0; left:0; z-index:9999; overflow:hidden;} #cboxOverlay{position:fixed; width:100%; height:100%;} #cboxMiddleLeft, #cboxBottomLeft{clear:left;} #cboxContent{position:relative; overflow:visible;} #cboxLoadedContent{overflow:auto;} #cboxLoadedContent iframe{display:block; width:100%; height:100%; border:0;} #cboxTitle{margin:0;} #cboxLoadingOverlay, #cboxLoadingGraphic{position:absolute; top:0; left:0; width:100%;} #cboxPrevious, #cboxNext, #cboxClose, #cboxSlideshow{cursor:pointer;} #cboxOverlay{background:#fff;} #colorbox{} #cboxContent{margin-top:32px;} #cboxLoadedContent{background:#000; padding:1px;} #cboxLoadingGraphic{background:url(images/loading.gif) no-repeat center center;} #cboxLoadingOverlay{background:#000;} #cboxTitle{position:absolute; top:-22px; left:0; color:#000;} #cboxCurrent{position:absolute; top:-22px; right:205px; text-indent:-9999px;} #cboxSlideshow, #cboxPrevious, #cboxNext, #cboxClose{text-indent:-9999px; width:20px; height:20px; position:absolute; top:-20px; background:url(images/controls.png) no-repeat 0 0;} #cboxPrevious{background-position:0px 0px; right:44px;} #cboxPrevious.hover{background-position:0px -25px;} #cboxNext{background-position:-25px 0px; right:22px;} #cboxNext.hover{background-position:-25px -25px;} #cboxClose{background-position:-50px 0px; right:0;} #cboxClose.hover{background-position:-50px -25px;} .cboxSlideshow_on #cboxPrevious, .cboxSlideshow_off #cboxPrevious{right:66px;} .cboxSlideshow_on #cboxSlideshow{background-position:-75px -25px; right:44px;} .cboxSlideshow_on #cboxSlideshow.hover{background-position:-100px -25px;} .cboxSlideshow_off #cboxSlideshow{background-position:-100px 0px; right:44px;} .cboxSlideshow_off #cboxSlideshow.hover{background-position:-75px -25px;} Can someone please tell me how this can be achieved? Forgive my lack of css knowledge :) Any help would be greatly appreciated. Thanks a ton.

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  • why gwt-user-1.7.0 contains Servlet API classes

    - by Anton S. Kraievoy
    Does anyone know any sane reason for such bundling decision? Google engineers act wisely in most cases, so this kinda surprized me. This would cause collisions with other versions of servlet API pulled via Maven dependencies: webapp classpath will likely contain version which is bundled with GWT; container may refuse to load the GWT jar as it contains the javax.servlet package; in most cases this will likely deviate classpaths across your IDE's debugger and the really executing VM. Link to the jar in question (just so you see the same thing after unzipping as I do): http://repo1.maven.org/maven2/com/google/gwt/gwt-user/1.7.0/gwt-user-1.7.0.jar

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  • How do I make a DIV stay at the top of the screen no matter ow far down the page my visitor scrolls?

    - by user1289863
    What I'm saying is, I have some extremely long pages on my website, which can make it annoying I've my visitors need to scroll to the top of the page to be able to navigate to another page. I'm not quite sure what I would call this but any Google search that contains the words 'DIV' and 'float' come up with completely unrelated results... What I'm looking to do is create a DIV that stays at the top of the Screen (not to be confused with the page) so that if the user is at the bottom of the page, they can still see the navigation bar just floating at the top of the screen. What I can think of is to position the DIV relative to the position of the screen but I don't know how to code this. I'm happy to use JavaScript (preferably in the form of jQuery), but if you know how to do this using CSS, I would favour your response. This might help: I know a little bit of jQuery and JavaScript and I know a good deal of CSS and HTML. Thanks in advance.

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  • Access specifier's and classes and objects?

    - by TimothyTech
    Alright, im trying to understand this, so a class is simply creating a template for an object. class Bow { int arrows; }; and an object is simply creating a specific item using the class template. Bow::Bow(arrows) { arrows = 20; } also another question, public specifiers are used to make data members avaible in objects and private specifiers are used to make data memebers only avaialble inside the class?

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  • padding not shifting my logo

    - by paul smith
    I have a logo link that's using a background-image (css sprite). All works fine, but when I try to add a 20px padding to the top of the link (to give it more space for user to click the link), the background image is not moving down. Here is my css: a { background-image:url("sprite.png"); background-repeat:no-repeat; display:block; height:70px; width:70px; padding-top:20px; /* give top of the link more click space */ } And my html: <a href="#" style="background-position:0 0;"></a> What am I doing wrong?

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  • Creating C# Classes at runtime

    - by John Hartsock
    Hello, I have been curious about dynamically create class at runtime in C# and stumbled across this article. http://olondono.blogspot.com/2008/02/creating-code-at-runtime.html I am curious to hear some pros and cons regarding construction of a class at runtime. Any opinions?

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  • template function error..

    - by sil3nt
    Hi there, I have function which takes in an parameter of a class called "Triple", and am returning the averge of 3 values of type float. template <typename ElemT> float average(Triple ElemT<float> &arg){ float pos1 = arg.getElem(1); float pos2 = arg.getElem(2); float pos3 = arg.getElem(3); return ( (pos1+pos2+po3) /3 ); } when i try compiling this i get q2b.cpp:32: error: template declaration of `float average' q2b.cpp:32: error: missing template arguments before "ElemT" not quite sure what this means.

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  • Car Class (first time with classes)

    - by user2967605
    For an assignment I needed to use a class named car and have it display the make and model, and also have the speed increase by 5 when you use accelerate and decrease by 5 when you brake. My teacher helped me along the way but when I got to the end I couldn't get it to run. Could someone correct me and tell my why it's wrong? Imp--------- #include <iostream> #include <string> using namespace std; void accelerate() { int speed; speed = speed + 5; } void brake() { int speed; speed = speed - 5; } Header #include <iostream> #include <string> using namespace std; class car { public: car(int getYear, string getMake); void accelerate(); void brake(); private: int year; string make; int speed; }; CarClass.cpp #include <string> #include "CarClass.h" using namespace std; int main() { car.(2013,"Kia") car.accelerate() car.brake() }

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  • "No Suggestions" in NetBeans

    - by Flexx
    For a few days now I'm using NetBeans 6.8 for doing PHP work. But even if a class-file is included and the methods are public and there's phpDoc used, NetBeans everytime shows "No Suggestions" in the window. E.g. I type $user-> and press CTRL+Space, I do expect all the methods and variables but there aren't shown any. ideas?

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  • jquery css transform, why translate?

    - by Mark
    The CSS transform translate property, I don't get the difference between changing that value and changing the margin or position with css2. Where would you want to use transform? (ignoring the ie incompat for the moment)

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  • mod_rewrite - Don't get a second rule work

    - by poru
    I want to have a url like this: domain.com/css/site.css?test=234 Rule: RewriteEngine On RewriteRule ^([a-z]+)/$ $1.php RewriteRule ^css/([a-zA-Z0-9]+).css?count=(.*)$ css.php?f=$1&test=$2 But I get every time a 404: Not found (site.css) If I have a rule like that it works, just without getting the $_GET-Variable: RewriteEngine On RewriteRule ^([a-z]+)/$ $1.php RewriteRule ^css/([a-zA-Z0-9]+).css$ css.php?f=$1

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  • Getting Reference to Calling Activity from AsyncTask (NOT as an inner class)

    - by stormin986
    Is it at all possible, from within an AsyncTask that is NOT an inner class of the calling Activity class, to get a reference to the instance of Activity that initiated execution of the AsyncTask? I am aware of this thread, however it doesn't exactly address how to reference the calling Activity. Some suggest passing a reference to the Activity as a parameter to the AsyncTask constructor, however, it's reported that doing so will always result in a NullPointerException. So, I'm at a loss. My AsyncTask provides robust functionality, and I don't want to have to duplicate it as an inner class in every Activity that wants to use it. There must be an elegant solution.

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  • Extract IDs from CSS

    - by nosuchip
    I've the CSS file with many entry like id1, #id2, #id3, #id4 { ... } id3, #id2 { ... } id2, #id4 { ... } I want to extract list of unique IDs using command line tools (msys). Unique means any entry in list presented only once. How? PS: I know how doing it using python, but what about awk/sed/cat?

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  • When to use () with classes?

    - by SoulBeaver
    This is really starting to confuse the hell out of me. When do I use them, when don't I? For example I was reading a .cpp on linked lists whose class declaration was: struct CarPart { long PartNumber; char Partname[40]; double UnitPrice; CarPart *next; }; class ListOfParts { int size; public: CarPart *head; ListOfParts(); ~ListOfParts(); const int count() const; void insert( CarPart *item ); CarPart *retrieve( int pos ); }; With this code, why am I allowed to write ListOfParts *pPart = new ListOfParts(); CarPart *pCarPart = new CarPart; Declaring an instance of ListOfParts requires (), but not my CarPart? That's confusing me. When I asked a question before and people told me that such a declaration is a function that returns a ListOfParts object, but not the actual constructor. So I'm guessing this is still something different. What's happening here? PS: Am I correct to assume that the const to the right of count() means I cannot modify any values in count?

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  • Auto-needed classes?

    - by fsdfa
    Suppose I have a class A and a class B. The .h of A, needs the .h of B, and the .h of B needs the .h of A. (need = #include). All .h have the guards: #ifndef _classX_ #define _classX_ ... ... #endif But if I compile the .cpp of A, then when it includes the .h of B, the B class cannot include the .h of A class because the A class has already use the guard. How can i solve this?

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