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  • Prototype to JQuery - how to access originator of event

    - by ciaranarcher
    Hi there I'm coming from a Prototype background and looking into JQuery. I'd like to know the 'right' way to do attach a click event to a bunch of elements, but then know in the event handler which one of my elements was clicked. I've come up with the following: MYNS.CarouselHelper.prototype.attachImgHandlers = function () { $j(".carouselItem").bind("click", this, function(e){ e.data.openCarouselImage(e) }); } I then have the following in my event handler: MYNS.CarouselHelper.prototype.openCarouselImage = function(e) { var img = e.currentTarget; // Do stuff to the image element }; Is this 'right'? It feels wrong to me as I am used to explicitly passing the element to the event handler in Prototype as I loop through an array of elements. Thanks in advance.

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  • Why does having a transitional doctype, cause my javascript to fail in WebKit and Opera Browsers

    - by morgenmuffel
    Hi all I am trying to get a mouseover script to work, when there is no doctype set the script works fine in all browsers I test, but the site looks like a dogs breakfast However When i set the doctype to transitional (it has to be this doctype) Firefox and IE8 (&compat mode) work fine But Opera and the webkit browsers can only display the popup above the page fold, so if you scroll down the page and go over an image the popup appears above the visible page. And I can't figure out why, there are a couple of instances of document.all in the code, but my attempts to replace these have broken the code, besides the fact it works in Firefox and not Opera makes me think that document.all is not the issue Any help would be appreciated, even just telling me why a doctype would effect Javascript would be a help. Here is the site without a doctype As I can't post 2 links, being a new user and all, follow the link above and change and change the url from noodle3 to noodle to see the site with a doctype

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  • onclick event not working after ie7 reload

    - by Charles
    I am using Javascript to dynamically create part of my page content. A routine that generates a set of img tags is called from the window.onload event. Those img tags are assigned attributes, including an onclick event. The img tags host thumbnail images that, when clicked, change the src property of the image in the main view div. Everything works properly in FF 3.5. I can reload the page and the dynamically generated onclick events continue to fire as expected. In IE7 everything works normally until I reload the page. At that point events that were hard coded into the xhtml section continue to work as expected, and the dynamically generated img tags are shown on the page, but their onclick events fail to work. How can I get IE7 to implement the dynamically generated click events on reload?

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  • ASP.NET How expensive is it to call an Application Variable many times?

    - by Matias Nino
    The short of it is: Is it costly to check an Application Variable such as Application("WebAppName") more 10-20 times each time a page loads? Background: (feel free to critique) Some includes in my site contain many links and images which cannot use relative urls due to their inclusion in different paths. Hence these includes contain frequent instances of <img src="<%=Application("Webroot")%>images\image.gif"> Is it expensive to keep calling an Application variable like this? Should I just put the Application value in some local variable to use where needed? IMPORTANT NOTE: I need my webapp to run fine on a server whether it be in the root web ("/") or in a virtual subweb ("/app"). Thanks in advance for any wisdom shared.

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  • How to make an ISO copy of Linux-filesystem and user files of VPS Debian based?

    - by moogeek
    Hello! I have a Debian-Based VPS on some hosting. I want to migrate from it and i need to make a full copy of all Linux-filesystem (and installed packages) + all home directory with website files. And then pack/convert it to ISO image so that to use it on cloud hostings like Amazon. The problem is that i have only ssh root access. Hosting support can't do that for me. Another part of the question - is it possible to enlarge the Linux-filesystem by not re-installing it and using the free space of home directory? Is it possible to do? I guess it is possible with rsync or something like that. Will my Mysql databes copy together with all other data? Thanks in advance!

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  • SetCursor reverts after a mouse move

    - by Joe Ludwig
    I am using SetCursor to set the system cursor to my own image. The code looks something like this: // member on some class HCURSOR _cursor; // at init time _cursor = LoadCursorFromFile("somefilename.cur"); // in some function SetCursor(_cursor); When I do this the cursor does change, but on the first mouse move message it changes back to the default system arrow cursor. This is the only code in the project that is setting the cursor. What do I need to do to make the cursor stay the way I set it?

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  • C# "Could not find a part of the path" - Creating Local File

    - by Pyronaut
    I am trying to write to a folder that is located on my C:\ drive. I keep getting the error of : Could not find a part of the path .. etc My filepath looks basically like this : C:\WebRoot\ManagedFiles\folder\thumbs\5c27a312-343e-4bdf-b294-0d599330c42d\Image\lighthouse.jpg And I am writing to it like so : using (MemoryStream memoryStream = new MemoryStream()) { thumbImage.Save(memoryStream, ImageFormat.Jpeg); using (FileStream diskCacheStream = new FileStream(cachePath, FileMode.CreateNew)) { memoryStream.WriteTo(diskCacheStream); } memoryStream.WriteTo(context.Response.OutputStream); } Don't worry too much about the memory stream. It is just outputting it (After I save it). Since I am creating a file, I am a bit perplexed as to why it cannot find the file (Shouldn't it just write to where I tell it to, regardless?). The strange thing is, It has no issue when I'm testing it above using File.Exists. Obviously that is returning false, But it means that atleast my Filepath is semi legit. Any help is much appreciated.

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  • Are these jobs for developer or designers or for client himself? for a web-site projects [closed]

    - by jitendra
    Are these jobs for developer or for designers or for client himself? for a web-site projects. Client is asking to do all things to XHTML CSS PHP coder.. Spell checking grammar checking Descriptive alt text for big chart , graph images, technical images To write Table summary and caption Descriptive Link text Color Contrast checking Deciding in content what should be H2 ,H3, H4... and what should be <strong> or <span class="boldtext"> Meta Description and keywords for each pages Image compression To decide Filenames for images,PDf etc To decide Page's <title> for each page

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  • Django how to handle # in variable name.

    - by Jack
    I've got a dictionary in python which is assigned as a template variable. One of the keys is named "#text" but when i try to access it using {{ artist.image.3."#text"}} I get an error which is File "/home/jack/Desktop/test/appengine/lib/django/django/template/__init__.py", line 558, in __init__ raise TemplateSyntaxError, "Could not parse the remainder: %s" % token[upto:] TemplateSyntaxError: Could not parse the remainder: "#text" So how can I use this in the template? I've tried putting quotes around it but to no avail. I'd like to not modify the dictionary if possible, but if its easy enough to do then I guess its okay. Thanks

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  • Setting pixel color of BMP/JPG file in C#.

    - by Jamie
    Hi guys, I'm trying to set a color of given pixel of the image. Here is the code snippet Bitmap myBitmap = new Bitmap(@"c:\file.bmp"); for (int Xcount = 0; Xcount < myBitmap.Width; Xcount++) { for (int Ycount = 0; Ycount < myBitmap.Height; Ycount++) { myBitmap.SetPixel(Xcount, Ycount, Color.Black); } } Every time I get the following exception: Unhandled Exception: System.InvalidOperationException: SetPixel is not supported for images with indexed pixel formats. The exception is thrown both for bmp and jpg files. I have no idea what is wrong. Thank you in advance for the reply! Cheers.

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  • Un-readable files uploaded via PHP FTP functions

    - by Mike
    I just setup a LAMP development server and am still trouble-shooting some things. The server is installed on one computer and I use a Windows laptop to write my code and test the site via the web browser. My file uploading script works in that JPEG image files are successfully uploaded to the server, but when I try to view the images in the web browser, permission is denied. I check the permissions on the file via the server and they are 600. I can fix the issue by chmod 777 theimage.jpg, but this doesn't seem like a good solution at all. Does the solution have something to do with Apache configuration? Or is there something else I should be doing. Thank-you, Mike

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  • Which design pattern should I be using?

    - by Gabriel
    Here's briefly what I'm trying to do. The user supplies me with a link to a photo from one of several photo-sharing websites (such as Flickr, Zooomr, et. al). I then do some processing on the photo using their respective APIs. Right now, I'm only implementing one service, but I will most likely add more in the near future. I don't want to have a bunch of if/else or switch statements to define the logic for the different websites (but maybe that's necessary?) I'd rather just call GetImage(url) and have it get me the image from whatever service the url's domain is from. I'm confused how the GetImage function and classes should be designed. Maybe I need the strategy pattern? I'm still reading and trying to understand the various design patterns and how I could make one fit in this case. I'm doing this in C#, but this question is language-agnostic.

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  • jquery selector help... thought I followed the example correctly...but can't get it to work..

    - by Ronedog
    I'm trying to do the following in jquery but can't make it work . I want to select all the DIV tags that have a custom attribute called NODE_ID that have a value of 49_3. then select the and change the src attribute to a different image. Here's the HTML: <div style="display: block;" id="71_7_sub_p_div" node_id="49_3"> <span> <img src="../images/maximize.png"> &nbsp;Greenfield Industrial Park </span> </div> Here's the script: <script type="text/javascript"> $(document).ready(function(){ $("div[node_id='49_3']:has(img)").attr("src","../images/folder_closed.png"); }); </script> Any ideas are appreciated. thanks.

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  • What exactly does raw microphone data represent?

    - by esperantist
    I'm using PyAudio, a PortAudio wrapper for Python. I'm getting data from a microphone. Data which is represented by a continuous stream of bytes divided into chunks (of a size determined by me). I've tried to plot the signal, assuming the bytes represent the current signal amplitude, but I get an interesting image that I can't easily describe. ^^ It seems to be composed of two waves, one shifted from the other. What exactly do the particular bytes represent, and how does this change when I'm recording only one channel, instead of two? Any explanations, suggestions, code snippets, anything, very welcome! (I'm new at this.) Thanks!

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  • Does the iPhone compress images saved within my app's documents directory?

    - by Jane Sales
    We are caching images downloaded from our server. We write them to our local storage like this: NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0] ; NSString* folder = [[documentsDirectory stringByAppendingPathComponent:@"flook.images"] retain]; NSString* fileName = [folder stringByAppendingFormat:@"/%@", aBaseFilename]; BOOL writeSuccess = [anImageData writeToFile:fileName atomically:NO]; The downloaded images are always the expected size, around 45-85KB. Later, we read images from our cache like this: NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0] ; NSString* folder = [[documentsDirectory stringByAppendingPathComponent:@"flook.images"] retain]; NSString* fileName = [folder stringByAppendingFormat:@"/%@", aBaseFilename]; image = [UIImage imageWithContentsOfFile:fileName]; Occasionally, the images returned from this cache read are much smaller because they are much more compressed - around 5-10KB. Has the OS done this to us?

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  • Calculating 2D angles for 3D objects in perspective

    - by Will
    Imagine a photo, with the face of a building marked out. Its given that the face of the building is a rectangle, with 90 degree corners. However, because its a photo, perspective will be involved and the parallel edges of the face will converge on the horizon. With such a rectangle, is it possible to calculate the angle in 2D of the edges of a face that is 90 degrees to it? In the image below, the blue is the face marked on the photo, and I'm wondering how to calculate the 2D vector of the red lines of the other face:

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  • How to define a multipage environment not interrupted by tables and figures?

    - by Egon Willighagen
    I have defined a new LaTeX environment for excursions in a book chapter I am writing. The environment is multipage and often includes inline images. Moreover, I am using the shaded environment to give the environment a background colour to make it stand out a bit. However, the environment, as shown below, is split up by floating tables and images, which makes the flow of the environment visually more difficult to follow. For example, it is now difficult to see if that floating image or table is part (the missing background colour does not help). So, I like to extend my environment to disallow it to be interrupted by floating elements, but do not know how to get that done. \newcounter{bioclipse} \def\thebioclipse{\thechapter-\arabic{bioclipse}} \newenvironment{bioclipse}[2][]{\begin{small}\begin{shaded}\refstepcounter{bioclipse} \par\medskip\noindent% \textbf{Bioclipse Excursion~\thebioclipse #1: #2 \vspace{0.1cm} \hrule \vspace{0.1cm}} \rmfamily}{\medskip \end{shaded}\end{small}} Any solution to disallow interruption is fine, even if the background colour is done differently.

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  • How to create stackoverflow's post voting like ajax function?

    - by Daoming Yang
    Can I use Ajax or Jquery to call a action and change the image, just like stackoverflow's post voting function? In my view, I'm using the following code, but I don't want to refresh the browser. Can anyone provide some code about this? <%if (!item.IsPrinted) { %> <%=Html.ImageLink("~/Content/images/web/delete.png", "printed", "MarkAsPrinted", "Order", item.TaskID, null, null)%> <%} else {%> <img src="~/Content/images/web/star.png" alt="printed" /> <% } %>

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  • How to create stackoverflow's post voting like jquery/ajax function?

    - by Daoming Yang
    Can I use Jquery to call an action and then change the image when it success, just like stackoverflow's post voting function? In my view, I'm using the following code, but I don't want to refresh the browser. Can anyone provide some code about this for me? Many thanks. <%if (!item.IsPrinted) { %> <%=Html.ImageLink("~/Content/images/web/delete.png", "printed", "MarkAsPrinted", "Order", item.TaskID, null, null)%> <%} else {%> <img src="~/Content/images/web/star.png" alt="printed" /> <% } %>

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  • How to center an R plot after removing axis labels

    - by ConnorG
    I'm working on visualizing a matrix in R (almost exactly like http://reference.wolfram.com/mathematica/ref/MatrixPlot.html), and I've been using image(<matrix>,axes=FALSE) to draw the picture. However, I noticed that with the y-axis turned off, the plot isn't centered--the space is still there for the axis ticks + label. I can finagle some centering with par(oma=c(0,0,0,2.5)) but this seems inefficient and error-prone (if my matrix were to change dimensions/become non-square). Is there a better way to force the graphic to center? The right hand margin is significantly smaller than the left.

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  • Imagemagick command line in PHP

    - by charly
    Hello everyone, I've got the following two commands for imagemagick in the command line: convert in.png container-mask.png +matte -compose CopyOpacity -composite out.png composite container.png out.png -compose multiply final.png Those two commands include 3 files: in.png: the file that should be masked container-mask.png: the back/white mask of the areas of container.png where in.png should be visible container.png image that includes the container for in.png, the one that has been masked in black/white with container-mask.png Now the question is how to transpose this commands into PHP calls. I've played around quite a bit, but I can't make sense of the API at http://php.net/manual/en/book.imagick.php Thanks and Bests, Charly

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  • [Java] Implement a RSA algorithm

    - by Robin Monjo
    Hello everyone. I want to implement a RSA algorithm to encrypt an image (byte[]). To generate my two keys I used this piece of code : KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA"); keygen.initialize(512); keyPair = keygen.generateKeyPair(); Once public and private key are generated, I would like to show them to the user so he can distribute the public key and use the private key to decode. How can I get back those key ? Using keygen.getPrivateKey() and keygen.getPublicKey() give me all the information of the RSA algorithm, not only the keys I need. Thanks

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  • Bind xaml vector images dynamically

    - by Carl
    I'm looking for a way to bind xaml images dynamically in code. There are lots of examples online to show how to bind png or xaml images in the window's xaml, or to load png files in code. But I have found no examples for xaml files with build action=page. XmlReader can't handle them since they are compiled to baml. LoadComponent(new Uri("...filename.xaml") will apparently load the baml but what kind of image class do I load this into? BitmapImage(new Uri("...filename.xaml") does not seem to work, probably because it's not a bitmap. Thanks in advance.

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  • Arraylist as repeater datasource (how to access from .aspx)

    - by Phil
    I have an arraylist: Dim downloadsarray As New ArrayList downloadsarray.Add(iconlink) downloadsarray.Add(imgpath) downloadsarray.Add(filesize) downloadsarray.Add(description) Which is the datasource of my repeater: DownloadsRepeater.DataSource = downloadsarray DownloadsRepeater.DataBind() Please can you tell me how I output the items in the array to the .aspx page. I usually use (when using sqldatareader as datasource): <%#Container.DataItem("1stcolumnnamestring")%> <%#Container.DataItem("2ndcolumnnamestring")%> But this does not work when using the arraylist as datasource. Thanks. ps... I know how to use <%#Container.DataItem% to dump everything but I need to get at the items in the array individually, not have them all ditched out to the page in one go. For example, item 1 contains a link, item 2 contains an image path, item 3 contains a description. I need to have them kick out in the correct order to build the link and icon correctly.

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  • DrawImage - unwanted resized

    - by nXqd
    I've implemented GDI+ Drawing, but I really don't know why it's resize unwanted :) case WM_PAINT: { hdc = BeginPaint(hWnd, &ps); Graphics g(hdc); Bitmap* bm; bm = new Bitmap(L"1.png"); g.DrawImage(bm,0,0); g.DrawImage(bm,0,100,126,36); g.DrawImage(bm,0,200,0,0,126,36,UnitPixel); // TODO: Add any drawing code here... EndPaint(hWnd, &ps); break; } the second sprite is the one I want , but I must use the third overload of DrawImage to draw one image.

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