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  • Basic javascript function

    - by McDan Garrett
    I have this function working <script type="text/javascript"> $(window).scroll(function() { if ($(window).scrollTop() == $(document).height() - $(window).height()) { $('div#loadmoreajaxloader').show(); $.ajax({ url: "loadmore.php?wall=<?php echo $wall; ?>&lastid=" + $(".postitem:last").attr("id"), success: function(html) { if (html) { $("#postswrapper").append(html); $('div#loadmoreajaxloader').hide(); } else { $('div#loadmoreajaxloader').html('<center><font color="white">No more posts to show.</font></center>'); } } }); } }); </script> But I need to have the same stuff happening (on IOS Devices), but instead of it happening when the browser reaches the loadmoreajaxeloader div, I simply need it to happen on an onclick event on a link. Thanks heaps. Tried to add code but didn't format so here it is http://pastebin.com/p2VUqZff

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  • GVim highlighting with matchadd eventually slows down?

    - by Kyle MacFarlane
    I have the following in ~/.vim/ftplugin/python.vim to highlight long lines, accidental tabs and extra whitespace in Python files: hi CustomPythonErrors ctermbg=red ctermfg=white guibg=#592929 au BufWinEnter *.py call matchadd('CustomPythonErrors', '\%>80v.\+', -1) au BufWinEnter *.py call matchadd('CustomPythonErrors', '/^\t\+/', -1) au BufWinEnter *.py call matchadd('CustomPythonErrors', '\s\+$', -1) au BufWinLeave *.py call clearmatches() The BufWinLeave is so that the matches are cleared when I switch to another file in case that file isn't a .py file. It's an essential feature for me when working with something like Django. It all works fine for random amounts of time; from ten minutes to hours (my guess is it depends on how many files I open/close). But eventually when any line over 80 characters is displayed GVim slows to a halt and requires a restart. Does anyone have any ideas why this would eventually slow down?

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  • efficient way to detect if an image is empty

    - by Jos
    Hi, I need a very fast method to detect if an image is empty. Im my case then all pixels are white and transparant. The images are png's. My current method is to load them in a memory bitmap and check each pixel value, but this is way to slow. Is there a more efficient way? This is my current code: 'Lock the bitmap bits. Dim bmpData As System.Drawing.Imaging.BitmapData = bmp.LockBits(rectBmp, _ Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat) Try Dim x As Integer Dim y As Integer For y = 0 To bmpData.Height - 1 For x = 0 To bmpData.Width - 1 If System.Runtime.InteropServices.Marshal.ReadByte(bmpData.Scan0, (bmpData.Stride * y) + (4 * x) + 3) <> 0 Then Return True Exit For End If Next Next Finally bmp.UnlockBits(bmpData) End Try

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  • Averaging corrupted images to eliminate the noise

    - by Mertie Pertie
    Hi all As you can get it from the title, I want to average some .jpg images which are corrupted by zero-mean Gaussian additive. After searching over internet, I figured out to add image matrices and divide the sum by the # of matrices. However the resultant image is totally black. Normally when the number of image increases then the resultant image gets better. But When I use more images it gets darker. I am using 800x600 black and white images with .jpg ext Here is the script I used; image1 = imread ('PIC1.jpg'); image2 = imread ('PIC2.jpg'); image3 = imread ('PIC3.jpg'); image4 = imread ('PIC4.jpg'); sum = image1 + image2 + image3 + image4; av = sum / 4; imshow(av); Thanks in advance

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  • drawImage in Java applet flickers in Safari

    - by lcvinny
    I'm having a flicker problem in a Java applet in Safari (Mac). However, it's not the usual double buffering problem. I have isolated it down to one single drawImage call (no redundant repaint, no clear is called), which gives a white flicker before painting the image but not on every repaint. In fact, I measured the duration of the drawImage call, which is normally about 1ms, but up to 30ms about every 5th time paint is called, which is when it flickers. Repaints are triggered when I drag a component or when the window is scrolled. Is this a bug in the java implementation on OSX, and is there a fix for it?

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  • C++ class initialisation containing class variable initialization

    - by Phil Hannent
    I noticed some code of a colleague today that initialized class variables in the initialization. However it was causing a warning, he says because of the order they are in. My question is why is it better to do variable initialization where it currently is and not within the curly brackets? DiagramScene::DiagramScene( int slideNo, QRectF screenRect, MainWindow* parent ) : QGraphicsScene( screenRect, parent ), myParent( parent ), slideUndoImageCurrentIndex(-1), nextGroupID(0), m_undoInProgress(false), m_deleteItemOnNextUndo(0) line(0), path(0) { /* Setup default brush for background */ scDetail->bgBrush.setStyle(Qt::SolidPattern); scDetail->bgBrush.setColor(Qt::white); setBackgroundBrush(scDetail->bgBrush); }

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  • Circular gradient in android

    - by sandis
    Im trying to make a gradient that emits from the middle of the screen in white, and turns to black as it moves toward the edges of the screen. As I make a "normal" gradient like this, I have been experimenting with different shapes: <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <gradient android:startColor="#E9E9E9" android:endColor="#D4D4D4" android:angle="270"/> </shape> When using the "oval"-shape I at least got a round shape, but there were no gradient effect. How can I achieve this? Cheers,

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  • How to count the letters in a text with Javascript?

    - by Doguhanca
    I am currently trying to write a ''web application'' that has a simple text area inside, in which I want the letters of the text written to be pointed out. For example, if I write: ''How old are you? I am 19 years old'' I need a code to tell me how many 'A's and 'Y's and 'D's (and all letters of the alphabet from 0-26) are used in this sentence when I press a button on a HTML/ CSS page. Could you please tell me what I must write into my .JS file and what I should write into my .HTML file to do this with a click of a button when something is written in the ? I hope my explanation was detailed enough. Thanks! Edit (I'm very sorry for the problems I caused) - What I have done so far looks like this: HTML: <link rel="stylesheet" type="text/css" href="theme.css"> <meta charset="utf-8"> <script src="test.js" type="text/javascript"></script> <div class='header'> Al.Fa.Be </div> <div class='yaz'> <textarea></textarea> </div> <div class='description'> <a href='http://www.google.com'>Ara</a> </div> <div class='description2'> <input id="clickMe" type="button" value="Hesapla" onclick="doFunction();" /> </div> CSS: body{ background:white; } selection{ background:#CCC; } #clickMe{ background:#CCC; border:1px solid #333; } .header{ font-size:70px; font-weight:bold; font-family:Arial; color:#333; margin-left:580px; padding-top:200px; } textarea{ width:1210px; height:40px; color:black; margin-top:20px; margin-left:100px; padding-left:10px; padding-top:10px; font-size:18px; font-family:Arial; } .description{ background:#f2f2f2; padding:6px; width:50px; text-align:center; border:1px solid #ddd; font-family:Arial; margin-left:620px; margin-top:20px; font-size:14px; } .description a{ color:#555; text-decoration:none; } .description2{ background:#f2f2f2; padding:6px; width:60px; text-align:center; border:1px solid #ddd; font-family:Arial; margin-left:750px; margin-top:-30px; font-size:14px; } .description2 a{ color:#555; text-decoration:none; } .yaz{ color:white; } Javascript: // Input name. Count number of alphabets a-z class program                                                          {     public static void main(String[] args)     {         String name = args[0];         int count[] = new int[29];         int i,p;         int n = name.length();         name = name.toUpperCase();         char c;         for (i=0; i<29; i++)         {             count[i] = 0;           }         for (i=0; i<n; i++)         {             c = name.charAt(i);             p = (int) c;             count[p-65]++;         }         for (i=0; i<29 ; i++)         {             if (count[i] >0)             {                 System.out.println((char)(i+65) + " occurs " + count[i] + " times");             }         }     } }

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  • How to generate graphics into photoshop using actionscript?

    - by understack
    I've a text file with content like this: id, pixelsize, color, text block1, 200x60, black, Header block2, 200x180, white, Body block2, 200x60, black, Footer Now using actionscript, I want to generate a psd file which would generate a 3 vertical block graphics (like this) after parsing the given file. All the blocks are placed vertically on top of each other. Convert this psd file into PDF automatically using the script. Automate this whole process without opening photoshop. Is it possible? Please help. Thanks.

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  • string substitution regular expression not working in tcl

    - by Puneet Mittal
    i am trying to replace all the special characters including white space, hyphen, etc, to underscore, from a string variable in tcl. I wrote the code below but it doesn't seem to be working. set varname $origVar puts "Variable Name :>> $varname" if {$varname != ""} { regsub -all {[\s-\]\[$^?+*()|\\%&#]} $varname "_" $newVar } puts "New Variable :>> $newVar" one issue is that, instead of replacing the string in $varname, it is replacing the data inside $origVar. No idea why, and also i read the example code (for proper syntax) in my tcl book and according to that it should be something like this regsub -all {[\s-][$^?+*()|\\%&#]} $varname "_" newVar so i used the same syntax but it didn't work and gave the same result as modifying the $origVar instead of required $varname value.

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  • Changing Pushpin Text Color

    - by Yawus
    I'm attempting to display data through the text of a Pushpin object. However, the text color defaults to white which is nigh-invisible when the backdrop is a road-style MapView. Looking through the API, paying especially close attention to PushpinOptions, I couldn't find anything that manipulated text color. Considering that this seems to a fairly basic feature, I'm a little confused as to why it doesn't exist or at least is really hard to find. Am I missing something or does Bing Maps for Android really not let you change the default text color for a Pushpin object?

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  • Strange Error - "Object moved to here."

    - by Dkong
    I get the strange error "Object moved to here." on a blank white page when I try to login on a site I created. It works fine locally but not when I deploy it to the test or production server. I am not doing anything odd, just using basic authentication code in a helper function as follows... public static bool AuthenticateUser(string Username, string Password, bool PersistLogin, string RedirectionURL) { if (Membership.ValidateUser(Username, Password)) { FormsAuthentication.SetAuthCookie(Username, PersistLogin); HttpContext.Current.Response.Redirect(RedirectionURL,true); return true; } else return false; }

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  • Stop sign icon in VS2005 Express solution explorer

    - by Andy Bisson
    What does a small stop sign icon on a file in solution explorer mean? Someone asked the same question a year ago Original Question but the answer provided is of no help. The icon looks like this: Suffice to say that the sign is not one presented in the VS documentation and is a UK Stop sign (red circle with a white horizontal bar) not a US one. The project is WebKit and the build process cannot find AuthenticationCF.h even though the file is present. I presume the sign might shed some light on this. Thanks, Andy

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  • Adding a decorator that converts strings to lowercase in Python

    - by user2905382
    So I am new to learning decorators and I have gone through countless tutorials and while I understand and can mostly follow all of the examples, I think the best way to learn, would be to implement a decorator myself. So I am going to use this example below. I realize a decorator is not at all necessary to do this, but for the sake of learning, I would like to add a decorator that filters the strings like dog name and breed and turns them into lowercase. Any ideas or pointers in the right direction would be appreciated. class Dogs: totalDogs = 0 dogList=[] def __init__(self, breed, color, age): self.breed=breed self.color=color self.age=age Dogs.dogList.append(self.breed) Dogs.totalDogs += 1 def displayDogs(self): print "breed: ", self.breed print "color: ",self.color print "age: ",self.age print "list of breeds:", Dogs.dogList print "total dogs: ", Dogs.totalDogs def somedecorator(*args): #now what terrier=Dogs("TeRrIer", "white", 5) terrier.displayDogs() retriever=Dogs("goldenRETRIEVER", "brown", 10) retriever.displayDogs()

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  • SASS color array

    - by Eric Holmes
    I am trying to write a loop that will cycle through colors and condense the amount of code in my scss file. Here is a simple example of what I have: $color1: blue; $color2: red; $color3: white; $color4: black; .color1-bg { background-color: $color1; } .color2-bg { background-color: $color2; } .color1-border { border-color: $color1; } .color2-border { border-color: $color2; } And so on. I am looking for a way to make the equivalent of a foreach loop, and cycle through an 'array' of colours by index. Something like this: @each $color in $color1, $color2, $color3, $color4 { .{$color}-bg { background-color: $color; .{$color}-border { border-color: $color; } I know the syntax is wrong, but that is my thinking process. Thanks for the help!

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  • Why does the android emulator camera stop unexpectedly?

    - by user490074
    I am using Android 2.2 (API Level 8). The camera is enabled in the manifest. When I try the camera icon provided by the emulator model, it runs for a few seconds showing a gray box moving around a black and white checkerboard, then dies with the error message: Sorry! The application Camera (process com.android.camera) has stopped unexpectedly. Please try again. Trying again, of course, doesn't help. I am using the provided emulator camera to compare behavior with a camera application I am working on. Why does the android emulator camera stop unexpectedly?

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  • Html + Css: How to create a auto-resizing rotated background?

    - by Sebastian P.R. Gingter
    Hi, image a complete black web page. On this web page is a 100% size white div that fills the whole page. I'd like to rotate this div by -7 degrees (or 7 degrees counter-clock wise). This will result in the black background being visible in triangles on the edges, just like you had placed a piece of paper on a desk and turned it a bit to the left. Actually this can be done with some css and it's working quite well (except for IE). The real problem now is: I'd like to have a normal, non-rotated div element on top of that to display the content in, so that only the background is rotated. Rotating a contained div counterwise doesn't work though, because through the two transformations the text will be blurry in all browsers. How can I realize that? Best would be a solution workiing in current Webkit browsers, FF3.5+ and IE7+. If only IE8+ I could live with that too.

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  • Ruby on Rails: restrict file type with Paperclip using a flash uploader

    - by aperture
    I have a pretty basic Paperclip Upload model that is attached to a User model through has_many, and am using Uploadify to do the actual uploading. Flash sends all files with the content type of "application/octet-stream" so using validates_attachment_content_type rejects all files. In my create action, I am able to get the mime-type from the original file name, but only after it's been saved, with: def coerce(params) h = Hash.new h[:upload] = Hash.new h[:upload][:attachment].content_type = MIME::Types.type_for(h[:upload][:attachment].original_filename).to_s ... end and def create diff_params = coerce(params) @upload = Upload.new(diff_params[:upload]) ... end What would be the best way of white listing file types? I am thinking a before_validation method, but I'm not sure how that would work. Any ideas would be welcome.

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  • R storing a complex search as a string

    - by Tahnoon Pasha
    Hi I'm working with a large data frame that I frequently need to subset in different combinations of variables. I'd like to be able to store the search in a string so I can just refer to the string when I want to see a subset. x = read.table(textConnection(" cat1 cat2 value A Z 1 A Y 2 A X 3 B N 2"),header=T,strip.white=T) search_string="cat1== 'A' & cat2=='Z'" with(x,subset(x,search)) doesn't work. What I'd be looking for is the result of a search similar to the one below. with(x,subset(x,cat1=='A' & cat2=='Z')) I'd prefer not to just create multiple subsetted data frames at the start if another solution exists. Is there a simple way to do what I'm trying?

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  • How to paste transparent image into flash project

    - by Andy
    Hi, I've created a short text (a word) in photoshop with the blending options I prefer and now it's all done I would like to paste it into my flash project. The problem is I can't get the text to be transparent in the flash, I always see the white background which is not very nice since the background on which the text will show is actually a picture. How to make this text transparent? In photoshop I started a new transparent project. Copying from a .GIF file also doesn't work... Thanks!!

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  • Drupal 7: Unable to find the wrapper "public"

    - by Raheel Hasan
    Can anyone help me with this major issue I have. I have downloaded my Drupal 7 site running fine on current server, but I cant run it on localhost or on the new server where I am trying to move it... It just gives me the "White Screen of Death"... and after commenting "set_error_handler" in boostrap.inc, I find out that the errors are all related to "public://" wrapper. This is how all the errors look like: Warning: is_dir() [function.is-dir]: Unable to find the wrapper "public" - did you forget to enable it when you configured PHP All these errors are coming from the following file: /includes/file.inc

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  • How to count new lines in Internet Explorer?

    - by Impirator
    Hey, all. I'm doing my own syntax highlighter for Javascript and CSS, and I've run into an issue with Internet Explorer (big surprise). I grab all the contents of a code.block tag (example below) using innerHTML, and .split("\n") that result to get each line by itself. This works wonderfully except in IE. I have tried using innerText and .split("\r\n") also without success. Can anyone recommend a solution? If it makes a difference, my code.block tags are styled to be white-space:pre-wrap. <code class="block css">div#randomBarsDemo { width:175px; height:200px; } div#randomBarsDemo div { background-color:#111; width:100%; }</code>

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  • Rewriting a simple Pygame 2D drawing function in C++

    - by Dominic Bou-Samra
    I have a 2D list of vectors (say 20x20 / 400 points) and I am drawing these points on a screen like so: for row in grid: for point in row: pygame.draw.circle(window, white, (particle.x, particle.y), 2, 0) pygame.display.flip() #redraw the screen This works perfectly, however it's much slower then I expected. I want to rewrite this in C++ and hopefully learn some stuff (I am doing a unit on C++ atm, so it'll help) on the way. What's the easiest way to approach this? I have looked at Direct X, and have so far followed a bunch of tutorials and have drawn some rudimentary triangles. However I can't find a simple (draw point).

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  • Java - Unknown characters passing as [a-zA-z0-9]*?

    - by Twodordan
    Hello, I'm no expert in regex but I need to parse some input I have no control over, and make sure I filter away any strings that don't have A-z and/or 0-9. When I run this, Pattern p = Pattern.compile("^[a-zA-Z0-9]*$"); //fixed typo if(!p.matcher(gottenData).matches()) System.out.println(someData); //someData contains gottenData certain spaces + an unknown symbol somehow slip through the filter (gottenData is the red rectangle): In case you're wondering, it DOES also display Text, it's not all like that. For now, I don't mind the [?] as long as it also contains some string along with it. Please help. [EDIT] as far as I can tell from the (very large) input, the [?]'s are either white spaces either nothing at all; maybe there's some sort of encoding issue, also perhaps something to do with #text nodes (input is xml)

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