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• Objective-C: how to allocate array of GLuint

  - by sashaeve

  I have an array of GLuint with fixed size: GLuint textures[10]; Now I need to set a size of array dynamically. I wrote something like this: *.h: GLuint *textures; *.m: textures = malloc(N * sizeof(GLuint)); where N - needed size. Then it used like this: glGenTextures(N, &textures[0]); // load texture from image -(GLuint)getTexture:(int)index{ return textures[index]; } I used the answer from here, but program fell in runtime. How to fix this? Program is written on Objective-C and uses OpenGL ES.

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• Using the filename for GET data and making the PHP page output as a JPG extension?

  - by Rob

  Alright, currently I'm using GD to create a PNG image that logs a few different things, depending on the GET data, for example: http://example.com/file.php?do=this will log one thing while http://example.com/file.php?do=that will log another thing. However, I'd like to do it without GET data, so instead http://example.com/dothis.php will log one thing, and http://example.com/dothat.php will log the other. But on top of that, I'd also like to make it accessible via the JPG file extension. I've seen this done but I can't figure out how. So that way http://example.com/dothis.JPG will log one thing, while http://example.com/dothat.JPG logs the other. The logging part is simple, of course. I simple need to know how to use filenames in place of the GET data and how to set the php file to be accessible via a jpg file extension.

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• jQuery fadeTo not working in IE8

  - by Lynda

  I have a div fading in using fadeTo. It works great in Firefox and IE9. It does not work in IE8. Here is my code: JS: var $j = jQuery.noConflict(); window.onload = function(){ $j('#fadein').fadeTo(6000, 1, function() { }); }; HTML <div class="img-center" id="fadein" style="opacity:0;"> <img src="src.jpg" alt="Text" class="feature-image" /> </div> How do I get this to work in IE8? I do not mind changing from fadeTo to fadeIn or some other method of fading in a div as long as it works in IE8.

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• Layout Problem on Bigger resolution Phone like Nexus one?

  - by UMMA

  dear friends, i have created application using layout font sizes in "pixels" font and other layout looks fine on HTC hero and Motorola Droid but in nexus one which is bigger resolution phone every thing is messed up. for example , i have used font 18px which is bigger size in HTC Hero and Motorola but in Nexus one it is looking very small. same is the case with image height and width a banner looks fine on both phones but in nexus one very small. actually we dont have height and width in percentage thats why i am not able to solve this problem. layout_width="fill_parent" also not helping.. kindly help me out what should i do to make application look same in all the phones with different resolutions.

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• ImageView source scaling done right. How?

  - by Aleksey Malevaniy

  Scope Image bitmap have to be shown as imageView.setImageBitmap(bitmap) and scaled to fit UI. This could be done via: bitmap = Bitmap.createScaledBitmap(bitmap, newWidth, newHeight, true); xml's ImageView attributes such as android:layout_width="newWidth" android:layout_height="newHeight" android:adjustViewBounds="true" android:scaleType="fitCenter" Problem Which way is better for performance? I prefer xml 'cause this is UI specific problem and I prefer to use xmls for UI definition. Also we set width/height values in dp, it means we have the same UI for different screens. Thanks!

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• Why do a small amount of add/deletes take several seconds in EF4?

  - by TomWij

  Using the Entity Framework 4. I have created a Code First database in the past and a piece of code needs to delete and add 16 objects, this takes 6 seconds each. That's 300+ ms for each query! The deletes/adds occur in a foreach scope and there is a SaveChanges() outside the foreach. In the above image you see that each takes 6 seconds, which is 34% of the time, for 16 calls. That doesn't sound normal to me... Why is this and how can I improve the performance? If there is no solution: Are there any workarounds I can use? It would be a pain to rewrite my project...

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• CoreData leak when reading a property

  - by Kamchatka

  Hello, I have the following code in a loop iterating over the different document objects: NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; [document primitiveValueForKey:@"data"]; [data writeToFile:filename atomically:NO]; [document.managedObjectContext refreshObject:document mergeChanges:NO]; [pool release]; The "data" property is a large blob (a 1MB image). And as I monitor the memory with the Allocation Instrument memory usage is increasing. I cannot find where the leak is coming from and how to remove it. Thanks!

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• How to pass object in :with field for a link_to_remote call

  - by mathee

  I have an object elem that I'd like to pass to the remove_tag_from_cart method. Here is my attempt: -elem = @tags[1] #{elem.name}#{link_to_remote image_tag('x.png'), :url => {:controller => 'questions', :action => 'remove_tag_from_cart'}, :with => {:tag_to_remove => :elem}} The :with clause isn't working correctly. The image does not even show up. If I take out the :with clause, then the link properly shows up and calls the method correctly, but I need the elem object in order to remove it from the cart. Suggestions?

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• reading and writing QByteArrays

  - by synchronicity

  I'm having trouble reading and writing QByteArray data to a file. My goal is to save QPixmap data into a QByteArray and save that QByteArray to a file (with the ability to read this QByteArray back from the file and into a QPixmap). I want to use following code from the QPixmap documentation: QPixmap pixmap(<image path>); QByteArray bytes; QBuffer buffer(&bytes); buffer.open(QIODevice::WriteOnly); pixmap.save(&buffer, "PNG"); // writes pixmap into bytes in PNG format After writing the buffer to a file, I want to be able to retrieve the QByteArray and load it back into a QPixmap using the QPixmap::loadFromData() function. Please let me know if any further clarification is needed (I'm open to alternative approaches as well, I just need to be able to read and write the QPixmap to a file! :) );

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• Visual Studio Error: An item with the same key has already been added

  - by PaN1C_Showt1Me

  When I'm trying to change the default Image of a Control on Windows Forms in Form Designer (no matter where on which control) I get this error: Error message: An item with the same key has already been added I tried to delete and recreate the Resources.resx file.. I assured that only 1 resx file with these keys exist.. (in fact that's my only resource file) but it still does not work. I have som strings in it and some images. That's all. Any idea?

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• Center footer fixed at the bottom IE

  - by Mirko

  I am coding a web interface for a University project and I have been dealing with this issue: I want my footer fixed at the bottom so it is in place no matter which screen I am using or if I toggle the full screen mode It works in all the other browsers except IE7 (I do not have to support previous versions) HTML <div id="menu"> <a href="information.html" rel="shadowbox;height=500;width=650" title="INFORMATION" > <img src="images/info.png" alt="information icon" /> </a> <a href="images/bricks_of_destiny.jpg" rel="shadowbox[gallery]" title="IMAGES" > <img src="images/image.png" alt="image icon" /> </a> <a href="music_player.swf" title="MUSIC" rel="shadowbox;height=400;width=600" > <img src="images/music.png" alt="music icon" /> </a> <a href="#" title="MOVIES"><img src="images/television.png" alt="movies icon" /></a> <a href="quotes.html" title="QUOTES" rel="shadowbox;height=300;width=650" > <img src="images/male_user.png" alt="male user icon" /> </a> <a href="#" title="REFERENCES"> <img src="images/search_globe.png" alt="search globe icon" /> </a> </div> <a href="images/destiny_1.jpg" rel="shadowbox[gallery]" title="IMAGES"></a> <a href="images/destiny_carma_jewell.jpg" rel="shadowbox[gallery]" title="IMAGES"></a> <a href="images/destiny-joan-marie.jpg" rel="shadowbox[gallery]" title="IMAGES"></a> <a href="images/pursuing_destiny.jpg" rel="shadowbox[gallery]" title="IMAGES"></a> <div class="clear"></div> <div id="destiny"> Discover more about the word <span class="strong">DESTINY </span>! Click one of the icon above! (F11 Toggle Full / Standard screen) </div> <div id="footer"> <ul id="breadcrumbs"> <li>Disclaimer</li> <li> | Icons by: <a href="http://dryicons.com/" rel="shadowbox">dryicons.com</a></li> <li> | Website by: <a href="http://www.eezzyweb.com/" rel="shadowbox">eezzyweb</a></li> <li> | <a href="http://jquery.com/" rel="shadowbox">jQuery</a></li> </ul> </div> </div> CSS: #wrapper{ text-align:center; margin:0 auto; width:750px; height:430px; border:1px solid #fff; } #menu{ position:relative; margin:0 auto; top:350px; width:450px; height:60px; } #destiny{ position:relative; top:380px; color:#FFF; font-size:1.5em; font-weight:bold; border:1px solid #fff; } #breadcrumbs{ list-style:none; } #breadcrumbs li{ display:inline; color:#FFF; } #footer{ position:absolute; width:750px; height:60px; margin:0 auto; text-align:center; border:1px solid #fff; bottom:0; } .clear{ clear:both; } The white borders are there only for debugging purposes The application is hosted at http://www.eezzyweb.com/destiny/ Any suggestion is appreciated

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• MFMessageComposeViewControllerDelegate error - black screen

  - by user1053839

  I'm using the following code to show in-app sms. My app don't have a status bar. (I'm using 320x480 pixels screen in portrait view). the problem is that when I load the controller, the screen becomes black as you can see from the image... http://desmond.imageshack.us/Himg211/scaled.php?server=211&filename=schermata092456187alle1.png&res=landing this is the code: MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init]; picker.messageComposeDelegate = self; picker.recipients = [NSArray arrayWithObject:@"123456789"]; // your recipient number or self for testing picker.body = @"test"; [self presentModalViewController:picker animated:YES];

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• UIView added with incorrect orientation

  - by mx12

  So I have been working on a problem with UIView on the iPad. Essentially I have a splitview as the root view and I want to overlay my custom image view over top of the splitview (This is because the splitview must be the root view). The problem that I have, is when I call addSubview on my splitview the subview gets displayed in its default orientation, with no regard to the iPad's current orientation. Any suggestions on what I am doing wrong or flag I am not setting? Thanks! Code that I am using to add the view: [splitViewController.view addSubview: myImageController.view]; Example screenshots: http://www.engineering.uiowa.edu/~krtaylor/so/

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• How to remove the auto added column (HeaderRole=Padding) in WPF GridView

  - by dnr3

  Hi, I'm trying to make a custom gridview in WPF but I just realized that as this link says: The GridViewHeaderRowPresenter class performs layout for the column headers in a GridView and places an additional column header at the end to add space and because of the additional column header at the end, there's an extra column to the right of the last column. so I was wondering if I can modify it, please refer to this image below My questions are: Is there anyway I can remove the 'A' part from the grid? Is there anyway I can add the same effect of 'B' part (the role = padding header) to the 'C' Part (before the first column)? Thanks

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• Getting Older PHP Extensions

  - by maSnun

  Hello All, It happens that I need the GD, SQLite and a few more extensions for php 5.1. But I can't find out where to get them. I am using WinBinder to develop some desktop applications for Windows with php. The minimal php 5.1 pack has the winbinder extension only. I need other extensions for enhanced features like image editing or data storage. Can anybody help? I really need this very much. Thanks and Regards, Masnun

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• Properly Repaint a Custom Control

  - by serhio

  I am doing a custom control, that should be painted like as standard one, but also having a Icon displayed near it. So, I jet overrided OnPaint like this: protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) {     base.OnPaint(e);     e.Graphics.DrawIcon(theIcon, X1, Y1 - iconSize.Width / 2); } Now, everything is OK, but when my control moves, the icon still remains drawn on the ancient place. What should I add to manage it properly? In the image we can see that after moving from top to bottom the line(custom control) even is not properly redrawn. I tried to do public override void Invalidate() {     base.Invalidate();     if (Parent != null) {         Parent.Invalidate(new Rectangle( X1, Y1 - iconSize.Width / 2, iconSize.Width, iconSize.Height));     } } but this does not work - when changing location the Invalidate is not even called. If it matter the custom control inherits from VisualBasic.PowerPacks.LineShape component.

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• C/C++: Scanning a TIFF file using LIBTIFF

  - by Matt07

  My problem is to scan a tiff image in C and get all the pixel value (let's say for saving them in a txt file) in C/C++. I scanned the web and i found a library named "TIFFLIB" that should do what i was looking for. I downloaded it using the ubuntu package manager, but the gcc doesn't recognize the library. How do i link the library to the compiler? Have I installed it correctly? Is there any better/easier way to do that?

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• Drupal 6 hook_form_FORM_ID_alter adding upload file field

  - by kristian nissen

  I'm trying to extend a form and add an upload file field from within a module, I can see the file field just fine, but it's empty when I submit the form, the enctype is set. $form['#attributes'] = array( 'enctype' => "multipart/form-data" ); $form['file_upload'] = array( '#type' => 'file', '#title' => 'Attach Image' ); custom form submit hook: $form['#submit'][] = 'user_images_handler'; is being called, but when I dump the form, the file field is empty, and when I try to access it, it's empty as well.

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• Rails: find_by_sql and PREPARE stmt FROM... i cant make it work

  - by Totty

  I have this query and I have an error: images = Image.find_by_sql('PREPARE stmt FROM \' SELECT * FROM images AS i WHERE i.on_id = 1 AND i.on_type = "profile" ORDER BY i.updated_at LIMIT ?, 6\ '; SET @lower_limit := ((5 DIV 6) * 6); EXECUTE stmt USING @lower_limit;') Mysql::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SET @lower_limit := ((5 DIV 6) * 6); EXECUTE stmt USING @lower_limit' at line 1: PREPARE stmt FROM ' SELECT * FROM images AS i WHERE i.on_id = 1 AND i.on_type = "profile" ORDER BY i.updated_at LIMIT ?, 6'; SET @lower_limit := ((5 DIV 6) * 6); EXECUTE stmt USING @lower_limit; EDIT: after finding the answer to: http://stackoverflow.com/questions/2566620/mysql-i-need-to-get-the-offset-of-a-item-in-a-query i need another help here to port it to rails.

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• jQuery: move window viewport to show freshly toggled element

  - by k00k

  I have a simple bit of jQuery in doc ready which toggles a div containing a textarea: $('div#addnote-area').hide(); // hide the div $('a#addnote-link').click(function() { // click event listener on link $('div#addnote-area').toggle(); // toggle the hidden div }); The toggle works fine when clicking the link. The problem I'm having is that if div#addnote-area is below the browser's current viewport, it remains there when it's shown. I'd like the user's cursor to go to the textarea and for the whole textarea to be viewable in the window. Click here to see an image for more context

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• How to calculate a point with an given center, angle and radius?

  - by mystify

  In this SO question, someone asked for calculating an angle from three points. I need to do the opposite thing. I want to draw a clock, and I have tiny tick images. An art dude made 60 of them, each with an individual and accurate shadow. So there are 60 distinct images at 10x10 points in size, already correctly rotated in the center of that square. So every 6 degrees one tick image has to be placed. I would just need to calculate the x/y coordinate based on a center point, an radius and an angle. So I have: an center point an radius an angle Is there an easy way to calculate the x/y coordinate with this? Maybe cocoa-touch already has a useful function or method for this?

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• relative path issue (noob)

  - by tim roberts

  I am using the following code to check existence of a file before publishing an image in my erb file. <% @imagename = @place.name + ".jpg" %> <% if FileTest.exist?( "/Users/Tim/projects/game/public/" + @imagename ) %> <p><img src= '<%= @imagename %>' width="400" height="300" /> </p> <% end %> And when I publish this to Heroku, it obviously wont work. I tried using a relative path, but not able to get it to work. <% if FileTest.exist?( "/" + @imagename ) % any help appreciated.

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• AS3IsoLib New IsoSprite

  - by KoopaTroopa

  I'm following a guide (http://www.jsparrowhawk.com/blog/?p=75) on how to use the As3IsoLib library. It seems his examples are a little erroneous at times. I'm at the part of creating a sprite, assigning it an image and then rendering. When I test my application I get my box and grid but not the sprite. var mySprite:IsoSprite; mySprite = new IsoSprite(); mySprite.setSize(40, 40, 0); mySprite.moveTo(120, 40, 0); scene.addChild(mySprite); var myImgLoader:Loader = new Loader(); var myImgURL:URLRequest = new URLRequest("http://www.jsparrowhawk.com/blog/wp-content/uploads/2011/10/as3isolib_styling_6b.jpg"); myImgLoader.load(myImgURL); myImgLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, imgLoadComplete); function imgLoadComplete(e:Event):void { var myImg:Bitmap = new Bitmap(e.target.content.bitmapData); mySprite.sprites = [myImg]; scene.render(); }

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• best way to build iphone settings screen

  - by Christian Schlensker

  I'm building a settings screen for an iPhone app and it is supposed to resemble a grouped table view. Each "cell" should behave like a button. Most cells just have a image view, label view, and disclosure indicator. One will display a value in addition to a label. All of these buttons will present a new view when tapped. Now, how to implement this? I was considering just laying out a set of buttons with custom background images, or would it be best to just use a table view. If that's the case what should it be implemented. So far I've only used table views to display some kind of dynamic data in which each cell displayed the same basic detail view. I'm most curious to figure out how to setup cellForRowAtIndexPath. Would this contain some sort of switch statement to configure each cell individually, or is there an easier way to handle all this?

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• problem in Latex

  - by qwerty

  Hellom I have a problem in Latex: if i have: \begin{enumerate} \item Alert - Mesaje de avertizare, erori, etc. \item Form - Permite crearea de ecrane compuse din alte componente, cum ar fi imagini (Image) sau articole derivate din Item (ChoiceGroup, CustomItem, DateField, Gauge, ImageItem, Spacer, StringItem, TextField). \item List - Ecran pentru selectarea unei op\c tiuni dintr-o mul\c time prestabilit\u a. \item TextBox - Ecran pentru introducerea unui text. \end{enumerate} \bf BIBLIOGRAFIE \linebreak \linebreak 1.suport\hspace{0.2cm}curs then, i wanna display that BIBLIOGRAFIE after the last item, but with two lines between them. So i have "TextBox - Ecran pentru introducerea unui text.", then two lines, then BIBLIOGRAFIE. how can i write that? with this code, the space between List and TextBox items are very large, and BIBLIOGRAFIE is displayed at the buttom... why? if i use \linebreak after \end{enumerate} i got a compile error Please help Thankls!

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