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  • Java operator overloading

    - by nimcap
    Not using operators makes my code obscure. (aNumber / aNother) * count is better than aNumber.divideBy(aNother).times(count) After 6 months of not writing a single comment I had to write a comment to the simple operation above. Usually I refactor until I don't need comment. And this made me realize that it is easier to read and perceive math symbols and numbers than their written forms. For example TWENTY_THOUSAND_THIRTEEN.plus(FORTY_TWO.times(TWO_HUNDERED_SIXTY_ONE)) is more obscure than 20013 + 42*261 So do you know a way to get rid of obscurity while not using operator overloading in Java? Update: I did not think my exaggeration on comments would cause such trouble to me. I am admitting that I needed to write comment a couple of times in 6 months. But not more than 10 lines in total. Sorry for that. Update 2: Another example: budget.plus(bonusCoefficient.times(points)) is more obscure than budget + bonusCoefficient * points I have to stop and think on the first one, at first sight it looks like clutter of words, on the other hand, I get the meaning at first look for the second one, it is very clear and neat. I know this cannot be achieved in Java but I wanted to hear some ideas about my alternatives.

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  • Inscribe and center an image within a frame

    - by Brennan Roberts
    Given a div of arbitrary aspect ratio, what's the best way to place and style an image (also with an arbitrary aspect ratio) inside such that: It is both inscribed and centered Its dimensions and position are set using relative values so that the image will remain inscribed and centered automatically when the frame is uniformly scaled (javascript should only be required when the image is initially inserted, or if the frame's aspect ratio changes) Extra markup is minimized Here's the result we want: Here's a fiddle template, which is just: Markup Should pillarbox <div class="frame"> <img src="http://www.placekitten.com/200/300" /> </div> Should letterbox <div class="frame"> <img src="http://www.placekitten.com/300/200" /> </div> CSS .frame { width: 200px; height: 200px; border: 2px solid black; margin: 10px 0px 100px 0; }

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  • Why use semicolon?

    - by Art
    Are there any reasons, apart from subjective visual perception and cases where you have multiple statements on the same line, to use semicolon at the end of statements in Javascript?

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  • Coding styles for html

    - by Hulk
    Hi, Please the coding standard followed for HTML .Please suggest links that the has the coding styles for html.(like Camel case or .....) <table> <tr> <td> Data </td> </tr> </table> Thanks..

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  • django link to any user profile in social comunity

    - by dana
    i am trying to build a virtual comunity, and i have a profile page, and a personal page. In the profile page, one can see only the posts of one user(the user whos profile is checked), in the personal page one can see his posts, plus all the posts he has subscribed to (just like in Facebook) it's a little confusing for me how i can link to the profile of one user, i mean when anybody clicks on a username, it should link to his personal profile page. for example, if someone searches name "abc", the rsult would be "abc",and link to his profile. How can i pass to one function the username or id of a linked user? i mean, showing the profile of the logged in user who is checking his profile is quite easy.But how about another user profile, if one wants to access it? thanks a lot!

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  • Text Wrapping differences in IE7, IE8, and FF

    - by gmcalab
    When I have this <table> below, the text wraps as needed in FF and IE8, but when I run this in compatibility mode or IE7 the text does not wrap and the width of the previous is basically ignored. Any way to get around this? Here is a simplified example. <table> <tr> <td style="width:125px"> hi </td> <td>bye</td> </tr> <tr> <td> line of text that will equal more than the above width </td> <td>bye</td> </tr> </table>

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  • Put an X on the topright of a div without making the top clickable

    - by acidzombie24
    I have a rect and have an X on the top right with items inside of it. The div with the X is clickable. The problem is the whole top area is clickable and not just the topright (the 'X') as i wanted. How do i make only the X clickable and still align to the right? my css is .itembox { float:left; } .itembox .RemoveMediaNotif { text-align: right; text-decoration:underline; cursor: pointer; } my html is <div class="itembox" id="i16"><div class="RemoveMediaNotif">X</div><div ...

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  • IE8 alignment in div issue

    - by xrx215
    How to align the the button in center of div in IE8. Works fine in IE7 but not in IE8 <div id="dPopupFooter" style="background-color: #d9d9d9; position: absolute; z-index: 5; bottom: 0px; width: 100%; height: 30px; border-top: solid 1px #acacac; text-align: center; padding-top: 3px;"> <table><tr><td><xrx:CustomButton id="btnClose" runat="server" OnClientClick="ClosePopup();" /></td></tr></table> </div>

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  • Fit <TD> height to page

    - by ssg
    Consider a table with three rows with heights 10, *, 10. I'd like the middle cell to be high enough to fit to the page vertically. Unfortunately "height:100%" doesn't work at table, tr, or td level, possibly due to standards. Even if it happens to work, I don't want 100%, I want 100% of clientHeight-20px :) I can always write script to calculate remaining clientHeight but I wonder if it can be achieved in HTML/CSS standards. NOTE: I'm using table just for layout, if there are other ways to lay them down in a better way I'm ok with those approaches too.

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  • Div that should take up the "rest of the page" expands beyond the page in ie.

    - by Clox
    Okay, this is REALLY starting to bug me... This page works fine in both Chrome and Firefox. www.bloggan.tk But if it's opened in internet-explorer it always expands beyond the page and introduces the scrollbar no matter what the resolution of the browser is. I have NO idea what change in the html it was that cause this... Here's the blogger-template-html-source I'd REALLY appreciate if someone could help me with this. Thanks in advance! Edit: I've "solved" it for IE using javascript, but that's only temporary (i hope). The version without javascript can be seen here, so that you still will be able to know what I'm talking about. Still trying to solve it, and still hoping for someone to help me.

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  • Remove the white text shadow from disabled links in IE8

    - by mancub
    We are using Ext JS for an application in work, building a custom theme for it. We currently have a dark colour scheme including menus with dark backgrounds. In some of the menus some of the links are disabled at certain points, which all perfectly. However IE8 seems to add a sort of white text shadow, which I am sure is normally fine but as the text is light grey and the background is dark grey the white text shadow makes it look blurry and even makes the other enabled links more disabled as they look darker. Does anyone know of a way to remove the text shadow (I realise it is not css text-shadow as IE does not support it).

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  • Text overflowing floated div

    - by James Hatton
    I have a problem with a fluid layout I am attempting to create. I was wondering why I am not able to get overflow:hidden to work on the left menu text on this site. As you can see here, I have labelled in blue, the text which I would like contained within the left menu div, although it overflows and pushes the rest of the site down with it. Please see here for a JS Bin: http://jsbin.com/OcoJEpe/2/edit?html,css,output Thanks for your help. James.

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  • Make input field background image disappear after text is inputted

    - by aslum
    I'd like to make the background image for my input field disappear once the user has typed any amount of text in it. Is there a simple way to do that in javascript? I can get it so the bg disappears while the field is focused, but then it returns once they move on to the next field. HTML: Call me at <input name="phone" type="text" class="phone-field" id="phone"> CSS: .form input { background-color:transparent; } .form input:focus { background-color:#edc; background-image:none; } input.phone-field { background-image: (url/images/phonebg.png); background-repeat: no-repeat; background-position: left 1px; }

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  • Revision histories and documenting changes

    - by jasonline
    I work on legacy systems and I used to see revision history of files or functions being modified every release in the source code, for example: // // Rev. No Date Author Description // ------------------------------------------------------- // 1.0 2009/12/01 johnc <Some description> // 1.1 2009/12/24 daveb <Some description> // ------------------------------------------------------- void Logger::initialize() { // a = b; // Old code, just commented and not deleted a = b + c; // New code } I'm just wondering if this way of documenting history is still being practiced by many today? If yes, how do you apply modifications on the source code - do you comment it or delete it completely? If not, what's the best way to document these revisions? If you use version control systems, does it follow that your source files contain pure source codes, except for comments when necessary (no revision history for each function, etc.)?

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  • Why are these divs overlapping?

    - by acidzombie24
    I putting wmd on my website. After putting code in and giving it a spin i see this image below. How can i make the preview div not overlap with the textarea? -edit- the black is the css background of div wmd-preview some html <div id="wmd-editor" class="wmd-panel"><div id="wmd-button-bar"></div> <textarea id="wmd-input" name="body" rows="10" cols="89"></textarea> ... </div></form><div id="wmd-preview" class="wmd-panel"></div>

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  • Function-Local Static Const variable Initialization semantics.

    - by Hassan Syed
    The questions are in bold, for those that cannot be bothered reading a question in depth. This is a followup to this question. It is to do with the initialization semantics of static variables in functions. Static variables should be initialized once, and their internal state might be altered later - as I (currently) do in the linked question. However, the code in question does not require the feature to change the state of the variable later. Let me clarrify my position, since I don't require the string object's internal state to change. The code is for a trait class for meta programming, and as such would would benifit from a const char * const ptr -- thus Ideally a local cost static const variable is needed. My educated guess is that in this case the string in question will be optimally placed in memory by the link-loader, and that the code is more secure and maps to the intended semantics. This leads to the semantics of such a variable "The C++ Programming language Third Edition -- Stroustrup" does not have anything (that I could find) to say about this matter. All that is said is that the variable is initialized once when the flow of control of the thread first reaches the code. This leads me to ponder if the following code would be sensible, and if not what are the intended semantics ?. #include <iostream> const char * const GetString(const char * x_in) { static const char * const x = x_in; return x; } int main() { const char * const temp = GetString("yahoo"); std::cout << temp << std::endl; const char * const temp2 = GetString("yahoo2"); std::cout << temp2 << std::endl; } The following compiles on GCC and prints "yahoo" twice. Which is what I want -- However it might not be standards compliant (which is why I post this question). It might be more elegant to have two functions, "SetString" and "String" where the latter forwards to the first. If it is standards compliant does someone know of a templates implementation in boost (or elsewhere) ?

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  • Auto-indent spaces with C in vim?

    - by zxcv
    I've been somewhat spoiled using Eclipse and java. I started using vim to do C coding in a linux environment, is there a way to have vim automatically do the proper spacing for blocks? So after typing a { the next line will have 2 spaces indented in, and a return on that line will keep it at the same indentation, and a } will shift back 2 spaces?

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  • Variable height header with scrollable content area filling remaining viewport area

    - by Neutrino
    I've seen versions of this simple problem raised a dozen times here and elsewhere on the web, but I haven't seen a solution that works for me yet so I'm asking it again. I want a webpage with a variable height full width header (height based on contents). Below that I want a content area that fills the rest of the browser viewport. If the content is larger than the remaining space in the viewport then I want the content area to scroll. I don't need this to work on IE6. I don't care whether the solution uses CSS, tables or a mixture of the two, just no frames and no Javascript. For a bonus point fix a variable height footer to the bottom of the page.

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  • Internet Explorer visual element stacking issue

    - by Michael
    Gday All, I know this issue is well known, however I have searched high and low for a solution to no avail. I have created a menu system using nested ordered lists where the menu functionality is controlled by CSS and Jquery. The menu works perfectly in FF, Chrome, Opera and Epiphany. However in IE 6/7/8 my popup menu is being displayed underneath a table. See the image below. The very top box is a div element containing my menu system. I am working with legacy code that uses tables for display so the next box and the "ts found. Try a different subcate" text is in a "td" element of a table. I have tried to force the table to have a lower z-index but this does not work. Any insights into why this is only present in IE would be appreciated. Cheers, Michael

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  • Making a vertically scrolling parent div which does not cause overflow of children

    - by marq
    I have something as follows: <div style="float: left; height: 20px; overflow-y: scroll"> <div>hello this is a test</div> <div>hello this is another test</div> <div>t1</div> <div>t2</div> <div>t3</div> </div> The parent div grows to the appropriate width to fit the largest child (which is what I want). However, the vertical scrollbar causes the inner width to be smaller, which causes the largest child to wrap. Is there a way to get the parent to grow to the width of the largest child + the width of the scroll bar? I've tried every margin trick I know, but nothing.

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  • c#: Clean way to fit a collection into a multidimensional array?

    - by Rosarch
    I have an ICollection<MapNode>. Each MapNode has a Position attribute, which is a Point. I want to sort these points first by Y value, then by X value, and put them in a multidimensional array (MapNode[,]). The collection would look something like this: (30, 20) (20, 20) (20, 30) (30, 10) (30, 30) (20, 10) And the final product: (20, 10) (20, 20) (20, 30) (30, 10) (30, 20) (30, 30) Here is the code I have come up with to do it. Is this hideously unreadable? I feel like it's more hacky than it needs to be. private Map createWorldPathNodes() { ICollection<MapNode> points = new HashSet<MapNode>(); Rectangle worldBounds = WorldQueryUtils.WorldBounds(); for (float x = worldBounds.Left; x < worldBounds.Right; x += PATH_NODE_CHUNK_SIZE) { for (float y = worldBounds.Y; y > worldBounds.Height; y -= PATH_NODE_CHUNK_SIZE) { // default is that everywhere is navigable; // a different function is responsible for determining the real value points.Add(new MapNode(true, new Point((int)x, (int)y))); } } int distinctXValues = points.Select(node => node.Position.X).Distinct().Count(); int distinctYValues = points.Select(node => node.Position.Y).Distinct().Count(); IList<MapNode[]> mapNodeRowsToAdd = new List<MapNode[]>(); while (points.Count > 0) // every iteration will take a row out of points { // get all the nodes with the greatest Y value currently in the collection int currentMaxY = points.Select(node => node.Position.Y).Max(); ICollection<MapNode> ythRow = points.Where(node => node.Position.Y == currentMaxY).ToList(); // remove these nodes from the pool we're picking from points = points.Where(node => ! ythRow.Contains(node)).ToList(); // ToList() is just so it is still a collection // put the nodes with max y value in the array, sorting by X value mapNodeRowsToAdd.Add(ythRow.OrderByDescending(node => node.Position.X).ToArray()); } MapNode[,] mapNodes = new MapNode[distinctXValues, distinctYValues]; int xValuesAdded = 0; int yValuesAdded = 0; foreach (MapNode[] mapNodeRow in mapNodeRowsToAdd) { xValuesAdded = 0; foreach (MapNode node in mapNodeRow) { // [y, x] may seem backwards, but mapNodes[y] == the yth row mapNodes[yValuesAdded, xValuesAdded] = node; xValuesAdded++; } yValuesAdded++; } return pathNodes; } The above function seems to work pretty well, but it hasn't been subjected to bulletproof testing yet.

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