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• Virtual-machine running from DVD ?

  - by umanga

  Greetings all, I have this application which uses Tomcat and PostgreSQL (only involve database reads, no writes). I need to make this application runnable from a DVD.(target platform is Windows). So I was thinking to do these: 1) In a VirtualMachine (i prefer virtualbox) install lightweight linux distro. 2) Install Tomcat and Postgre, 3) Write virtualmachine into DVD which loads above virtualmachine image automatically when executed. But I am not quite sure whether I can do step 3.Or is it possible ? Any tips?

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• Adobe Air upload progress without FileReference

  - by anhtuannd

  I'm deploying a small application with Adobe Air. My application will do batch upload from filepath which stored in a text file. For example, in a text file name "list.txt", there is a string "C:\myfiles\IMG_0001.JPG". Now I want to upload this image file, keep tracking of upload progress :-< I want to use FileReference to get the upload progress, but I don't know how to import from file's path. I also wonder how to use FileReference to upload this file without prompting a dialog for user to select file. Thank you so much :)

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• Web-To-Print - What technology should I explore? Web-Content -> drag & drop to Templates -> PDF

  - by hamlin11

  I'm discussing some software design issues with a potential client and the idea of Web-to-Print technology has come up. We need users to be able to drag images from an image library to various regions defined by a template. Example: Images may go in box A, B, or C and text may go in boxes D or E. These templates would be setup Boxes A through E would be defined inside a template by administrators using some sort of editor. These templates would serve as a mapping from web-content to a PDF. Once users drag images and insert text in the appropriate regions of the template, the result will be converted into a PDF. Is this feasible these days with jquery & asp.net? That would be nice. If not, what would be the ideal solution?

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• Are there any online database schema drawing tools?

  - by Pure.Krome

  Hi folks, i wish to draw up some database schemas. Eg, table 1 has zero to many rows in table 2, etc. It's purely for visual purposes (eg. no sql code, etc). Are there any online tools / website that offer this? (please don't say: Use Sql Server Database Diagrams, print screen, upload to image hosting service). thanks :) EDIT: Please take note of the keyword - ONLINE. I don't want any desktop solutions (because I already have one of these).

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• JNI unsigned char to byte array

  - by Jeff Storey

  I'm working with a C++ library that stores image byte data in an array of unsigned characters. My jni function returns a jByteArray (which then gets converted to a BufferedImage on the java side), but I'm not sure how to fill the jByteArray from the unsigned character array (if it is possible). Can anyone provide a snippet for this last part to basically do this: // size is the size of the unsigned char array const int size = 100; unsigned char* buf = new unsigned char[size]; // buf gets passed to another library here to be populated jbyteArray bArray = env->NewByteArray(size); // now how do I get the data from buf to bArray? Thanks, Jeff

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• TTTabItem in three20 icon not working?

  - by Frank

  I have been trying to get TTTabItem to work with images. And I dug up that you can set the icon to an image file. This is my implemenation: TTTabItem *tab1 = [[[TTTabItem alloc] initWithTitle:@"Item 1"] autorelease]; tab1.icon = @"bundle://icon_eat_min.png"; filterBar.tabItems = [NSArray arrayWithObjects: tab1, nil]; [scrollView addSubview:filterBar]; However, my icon doesn't even appear. I even search through this group: http://groups.google.com/group/three20/browse_thread/thread/f879f6643... and override the rounded style. But I am just contemplating why would you have an something you can set and not have it work? or am i doing this badly

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• How do I remove (or apply) transparency on a gdk-pixbuf?

  - by Andrew Stacey

  I have a c++ program in which a gdk-pixbuf is created. I want to output it as an image, so I call gdk_pixbuf_save_to_stream(pixbuf,stream,type,NULL,&err,NULL). This works fine when "type" is png or tiff, but with jpeg or bmp it just produces a black square. The original pixbuf consists of black-on-transparent (and gdk_pixbuf_get_has_alpha returns true) so I'm guessing that the problem is with the alpha mask. GdkPixbuf has a function to add an alpha channel, but I can't see one that removes it again, or (which might be as good) to invert it. Is there a simple way to get the jpeg and bmp formats to work properly? (I should say that I'm very new to proper programming like this.)

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• jquery Cycle plugin conflicing with custom script

  - by jeerose

  I have a site in development here: http://bit.ly/diWSgT Scenario: My custom script looks at the viewport size and if the menu and logo are not in view, animates them up into view (just re-size your browser window to test if you like). That works fine. I also have the every wonderful jQuery cycle plugin in use via WP-Cycle for Wordpress. The problem: As you can see by checking out the site, using my slide up/down button buggers with the cycle function, particularly when you click the button while on the second image. Any thoughts as to why this is happening would be great. Thanks.

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• How to center an R plot

  - 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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• Looking for PCA snippet/source code in C++

  - by jihchuan

  Hi, I'm currently developing a software to compare 2 images. I start with extract the image's RGB values, form a matrix of array and then attempt to compress the values using PCA, and then match/recognize it with a pre-set data to find its similarity. But I can't proceed with the PCA part. (I'm using C++, C also can) If there any library/source code/snippet for it please let me know, or if there're any recommendation on my case also very welcomed!! I'd appreciate your helps!! Thanks! JC, [email protected]

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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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• Symfony forms: how to change default widget for form generation

  - by caymcorp

  I'm using a custom Widget for date fields, and I want to use it in all my forms. The problem is that symfony uses the default sfWidgetFormDate. What I want is to change this default widget in order to generate forms with my custom Widget. I don't want to change by hand all the forms generated. The only approach I have found is the treak of modify BaseFormDoctrine.php: public function setup() { foreach($this->getWidgetSchema()->getFields() as $name=>$widget) { if($widget instanceof sfWidgetFormDate) { $this->widgetSchema[$name] = new sfWidgetFormJQueryDate(array( 'config' => '{}', 'image'=>'/images/calendar.png', )); } } }

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• How to handle localization in javascript files?

  - by Arnis L.

  I want javascript to be separated from views. Got requirement to implement localization for simple image button generated by JS: <img src="..." onclick="..." title="Close" /> What's the best technique to localize title of it? P.s. Found a solution by Ayende. This is the right direction. Edit: I got Localization helper class which provides Controller.Resource('foo') extension method. Thinking about to extend it (helper) so it could return all JavaScript resources (from "ClientSideResources" subfolder in App_LocalResources) for specified controller by it's name. Then - call it in BaseController, add it to ViewData and render it in Layout. Would that be a good idea?

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• Java JSpinner Looks Ugly

  - by ikurtz

  GUI i am trying to use JSpinner but as you can see from the attached image that it looks bad. i am on windows 7. i was wondering if anyone knows how to make it look good? just for clarity. bad means the edges dont line up and good means the spin control edges line up correctly. thank you. EDIT: maybe there is no cure for this? because i checked site and all their examples look like this!

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• Isssue with ColorBox jQuery plugin

  - by RyanP13

  Hi, I am using this plugin for my new site: http://colorpowered.com/colorbox/ The page in concern has two hyper links which are of the same class: a.emailQuote These both should open the same colorbox window which is done by the following code: $("a.emailQuote").colorbox({ transistion:"fade", title:true, iframe:true, scrolling:false, close:"Close this window", innerWidth:478, innerHeight:507, initialWidth:478, initialHeight:507 }); however when the colorbox window opens it seems to register that there are two windows so displays the previous, next arrows and the text that says this is image one of two. I was wondering if there was a way to fix this without hiding these elements with CSS.

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• Sprite backgrounds

  - by Mattias Akerman

  I use cocos2d for iphone and in my game I'm using a sprite as static background image. I've noticed that when removing code for adding the sprite the framerate goes from ~30fps to over 40fps. Is it any other way to show a static background that is less expensive? I'm not moving the background sprite at all. To code right now: background = [Sprite spriteWithFile:@"t1_5.jpg"]; [self addChild:background z:0]; background.position = ccp(240, 160);

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• 3d user experience with HTML5 and Javascript

  - by chako

  I've to build a 3D user experience with HTML5 and any required JS library which provides such functionality. 3D scene consists of a cylindrical pipe and surface. It has 360 degree rotation and can zoom in and out. As user selects a parameter, specific value of that parameter at various depth of pipe in surface should display. I've searched for HTML5 3d and JS libraries and found three.js could help for this.Also found this useful presentation on HTML 3d engine: http://projects.mariusgundersen.net/OnGameStart/#1 .But as this is my first time with HTML5 3d modeling, how should I initiate to build ? What parameters should be considered ? Which tools and libraries would best fit for such requirements ? I would like to create a 3d model using HTML5 and JS 3d engine as shown in the 1st image.

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• I want to version control my entire slice

  - by Tom

  I'm renting a slice (i.e., a VPS) from Slicehost. I've a spent a day or two filling up /usr with my favorite packages, /etc with configs and init scripts, and so on. Now I want to: save this whole setup somewhere (e.g., to load onto another machine). see what changes I've made to which files revert changes, tag revisions, and all that other good version control stuff Saving a disk image gives me (1), but not (2) and (3). Using Subversion (svn import / svn://someotherhost) might give me all three, but I expect problems if I actually try to check a project out into / and maintain .svn directories in root-owned areas. And to load my setup onto a fresh slice, I'd need to install an svn client on it first. Is there a good way to do what I want to do?

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• how to play video files by using UITableView?

  - by srikanth rongali

  Hi, In my iPhone application I need to show a video image in UITableView. Each tableViewCell have video and some labels. I used the MPMoviePlayerController for showing video in full screen when the cell is selected. But, I am getting error that MPMoviePlayerController class is not there. I tried using UIWebView. But, I could not make it. How can I play a video, when the cell is selected. Some say that videos do not play in simulator. They only play when we test in device. Is it right ? Please help me with the solution. Thank You.

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• Animated Gif in form using C#

  - by Rabin

  In my project, whenever a long process in being executed, a small form is displayed with a small animated gif file. I used this.Show() to open the form and this.Close() to close the form. Following is the code that I use. public partial class PlzWaitMessage : Form { public PlzWaitMessage() { InitializeComponent(); } public void ShowSpalshSceen() { this.Show(); Application.DoEvents(); } public void CloseSpalshScreen() { this.Close(); } } When the form opens, the image file do not immediately start animating. And when it does animate, the process is usually complete or very near completion which renders the animation useless. Is there a way I can have the gif animate as soon as I load the form?

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• Why does sorl.thumbnail ImageField fail in the admin?

  - by Mark0978

  I have code that looks like this: from sorl.thumbnail import ImageField class Gallery(models.Model): pass class GalleryImage(models.Model): image = ImageField(upload_to='galleries') In the admin: class GalleryImageInline(admin.TabularInline): model = GalleryImage class GalleryAdmin(admin.ModelAdmin): inlines = (GalleryImageInline,) If I use the sorl.thumbnail as above, it is impossible to add images in the admin. I get the validation error Enter a list of values. If I replace the sorl.thumbnail.ImageField with a plain django ImageField, everything works. If I want sorl.thumbnail to clean up the cache thumbnails, I need to use it in the model, but if I use it in the model, I can't seem to add any images to need thumbnails. Anyone else found and fixed this problem yet?

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• calling facebox in a google maps balloon

  - by XGreen

  Hi Guys, I have a gmap balloon. var marker = createMarker(point, '<div style="width:240px" id="mapsball"><h2>Splash of London</h2><img src="_assets/images/themes/shop.jpg" id="mapThumb" width="100" align="right" /><p>110-112 Hoxton Street</p><p>London</p><p>N1 6SH</p><\/div>'); map.addOverlay(marker, icon); and a facebox attached to the click event of the image ('#mapsball') which opens it in a facebox $(function() { $("body").delegate("#mapThumb", "click", function(){ jQuery.facebox('<img src="_assets/images/themes/shop.jpg" align="right"/>'); }); }); this works fine in ff and safari and chrome. but doesn't fire in ie. I don't get a js error in ie so I am assuming it just doesn't get binded. any help would be greatly appreciated.

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• FFmpeg on iPhone

  - by gn-mithun

  Hello, I have downloaded ffmpeg libraries for iPhone and compiled them. My objective is to create a movie file from a series of images using ffmpeg libraries.The amount of documentation for ffmpeg on iphone is very less. I checked an app called iFrameExtractor, which does the opposite of what i want, it extracts frames from a video. On the command line there is a command called ffmpeg -f image2 -i image%d.jpg video.mov This turns a series of images into a video. I actually checked it on my mac and it works fine. What i wanted to know was how do we get the equivalent in iPhone. Or rather which class/api or method to call. There are a couple of examples of apps doing this on iPhone. Not sure whether they do it through ffmpeg though. Anyways, for reference "Time lapser" and "reel moments" Thanks in advance

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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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• How do I create an 8-bit PNG with transparency from an NSBitmapImageRep?

  - by Rob Keniger

  I have a 32-bit NSBitmapImageRep which has an alpha channel with essentially 1-bit values (the pixels are either on or off). I want to save this bitmap to an 8-bit PNG file with transparency. If I use the -representationUsingType:properties: method of NSBitmapImageRep and pass in NSPNGFileType, a 32-bit PNG is created, which is not what I want. I know that 8-bit PNGs can be read, they open in Preview with no problems, but is it possible to write this type of PNG file using any built-in Mac OS X APIs? I'm happy to drop down to Core Image or even QuickTime if necessary. A cursory examination of the CGImage docs didn't reveal anything obvious. EDIT: I've started a bounty on this question, if someone can provide working source code that takes a 32-bit NSBitmapImageRep and writes a 256-color PNG with 1-bit transparency, it's yours.

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