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• Rotation, further I go from 0:0, the further the object positions around the origin while rotating

  - by Serguei Fedorov

  For some reason I am having the issue where the following code: global.spriteBatch.Draw(obj.sprite, obj.getPosition(), null, Color.White, obj.rotation, obj.center, 2f, SpriteEffects.None, 1); causes the object to rotate around the origin in such a way, as though there is an offset to the position relative to its location. The calculation for the center it correct and this happens even if I set the pivot to be the location of the object. The further I get from 0:0 the larger the radius or rotation. I am not sure what is going on here because given the following tutorial http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series2D/Rotation.php I have done the code setup correctly. Any ideas? Any help is greatly appreciated!!!

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• Help with this reg. exp. in PHP

  - by Jonathan

  Hi, i don't know about regular expressions, I asked here for one that: gets either anything up to the first parenthesis/colon or the first word inside the first parenthesis. This was the answer: preg_match('/(?:^[^(:]+|(?<=^\\()[^\\s)]+)/', $var, $match); I need an improvement, I need to get either anything up to the first parenthesis/colon/quotation marks or the first word inside the first parenthesis. So if I have something like: $var = 'story "The Town in Hell"s Backyard'; // I get this: $match = 'story'; $var = "screenplay (based on)"; // I get this: $match = 'screenplay'; $var = "(play)"; // I get this: $match = 'play'; $var = "original screen"; // I get this: $match = 'original screen'; Thanks!

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• iOS: How to access the `UIKeyboard`?

  - by MattDiPasquale

  I want to get a pointer reference to UIKeyboard *keyboard to the keyboard on screen so that I can add a transparent subview to it, covering it completely, to achieve the effect of disabling the UIKeyboard without hiding it. In doing this, can I assume that there's only one UIKeyboard on the screen at a time? I.e., is it a singleton? Where's the method [UIKeyboard sharedInstance]. Brownie points if you implement that method via a category. Or, even more brownie points if you convince me why it's a bad idea to assume only one keyboard and give me a better solution.

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• New and Noteworthy Fixed Assets Notes

  - by Oracle_EBS

  A new white paper for Integrating Oracle Inventory Transactions Into Oracle Projects To Generate Asset Lines & Interface Assets To Fixed Assets (Doc ID 1392743.1) A listing of available Oracle E-Business Fixed Assets Diagnostics (Doc ID 1362875.1) Information on the knowledge management enhancements made in My Oracle Support Knowledge Management Version 6.0 Release (Doc ID 1393516.1) The new Period Close Advisor for the Release 12 E-Business Suite (Doc ID 335.1).  What is the Period Close Advisor?  The Period Close Advisor provides guidance on recommended period end procedures for E-Business Release 12.x.  It is intended to be generic and does not relate to a specific organization or industry.  Step by step best practices with tips and troubleshooting references are provided to assist you through each phase.  The EBS R12 Period Close Advisor for Assets data can also be found in a standalone note (Doc ID 1359475.1)

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• Circle physics and collision using vectors

  - by Joe Hearty

  This is a problem I've been having, When making a set number of filled circles at random locations on a JPanel and applying a gravity (a negative change in the y), each of the circles collide. I want them to have collision detection and push in the opposite direction using vectors but I don't know how to apply that to my scenario could someone help? public void drawballs(Graphics g){ g.setColor (Color.white); //displays circles for(int i = 0; i<xlocationofcircles.length-1; i++){ g.fillOval( (int) xlocationofcircles[i], (int) (ylocationofcircles[i]) ,16 ,16 ); ylocationofcircles[i]+=.2; //gravity if(ylocationofcircles[i] > 550) //stops gravity at bottom of screen ylocationofcircles[i]-=.2; //Check distance between circles(i think..) float distance =(xlocationofcircles[i+1]-xlocationofcircles[i]) + (ylocationofcircles[i+1]-xlocationofcircles[i]); if( Math.sqrt(distance) <16) ...

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• Schema.org vs microformats

  - by Tordek

  They both server the same purpose: providing a vocabulary for semantic markup. Schema is recognized and standardized... but microformats are open. Schema exploits microdata, while microformats go on classes. (Of note: microdata means that an element must be of a single itemtype, while microformats allow several classes to apply to the same element. I can markup xFolk+hAtom with classes, but not with microdata.) Is this a black-and-white situation? Google says I can't use both "because it may confuse the parser". What's the consensus on these?

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• How do you position a wx.MessageDialog (wxPython)?

  - by Jason

  Hi: Is there any reason why the position, pos, flag doesn't seem to work in the following example? dlg = wx.MessageDialog( parent=self, message='You must enter a URL', caption='Error', style=wx.OK | wx.ICON_ERROR | wx.STAY_ON_TOP, pos=(200,200) ) dlg.ShowModal() dlg.Destroy() The documentation is here: http://www.wxpython.org/docs/api/wx.MessageDialog-class.html 'self' is a reference to the frame. I'm running in Windows Vista, python26, wxpython28. The message dialog always appears to be in the middle of the screen. If for some reason it's not possible to position the dialog, is there anyway to at least restrict the dialog to be in the frame, rather than just the center of the screen? thanks!

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• Announcement: How-To Series Explaining Customizations Step By Step

  - by Oliver Steinmeier

  Yesterday we officially launched our new YouTube channel.  Today we are announcing another initiative that we have been working on for a while: to help you learn common customization tasks, we are going to publish a series of detailed How-To documents with lots of screenshots.  Many of these will also be the script for a YouTube video, giving you the choice to see it in action or go through the steps yourself guided by a PDF document. The focus of the initial set of How-Tos will be JDeveloper/ADF customizations, but over time we will expand into other areas.  Today's first document is meant to get everyone up to the point where a JDeveloper environment is up and running: a white paper that shows you how to set up JDeveloper, configure the integrated WLS domain, and make a very, very simple customization work. As always we are looking for your feedback.  Please let us know whether this is helpful for your work or learning, and what use cases you would like to see us document in these How-Tos.

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• Modal View Does Not Appear in Center in Horizontal Orientation

  - by Sheehan Alam

  I have a UIPresentationFormSheet (contains a textview) that appears in the center of the screen when I am in vertical orientation. When I dismiss the modal view, it disappears fine. When I am in horizontal orientation my modal view does not appear in the center of the screen. I have to dismiss my keyboard for the modal view to appear in the center. [self presentModalViewController:composeTweetController animated:TRUE]; When I dismiss the modal view in horizontal orientation the app automatically switches to vertical orientation. -(void)dismissComposeTweetView{ [self dismissModalViewControllerAnimated:TRUE]; } I want the following to happen: Modal view should appear in the center in horizontal orientation Modal view should disappear without switching to vertical orientation

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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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• jQuery drag and drop behavior with partially transparent image

  - by Aaron

  I'm trying to develop a drag-and-drop behavior based on the jQuery UI draggable behavior but am running into some road blocks. I want to be able to drag several images with transparent regions around a region of the screen. I want the user to be able to drag the image he clicks and not just whatever draggable div or PNG happens to be z-indexed on top. The below image is a screen grab from my test page. If I click the lower left region of the blue square through the red thing I should drag the square and not the red thing. The red thing is what gets dragged though because it is on top and the browser does not care about the transparency. My question is, how can I make it behave as expected in this situation and drag the square instead? Edit: Seems I can't attach images as a new user. See this URL for my example image: http://i42.tinypic.com/r1g4sk.png

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• How to implement a "hidden" Android app?

  - by mawg

  I would like an application which is not readily apparent to casual perusal of the Android. How best to activate it and bring its screen to the fore? Can I detect a special dialing sequence, like *1234#? Or a hotkey combination? When activated, I guess I can pop up an anonymous screen which does not mention the app, but only asks for a password. If password is ok, then show the app. Any suggestions?

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• iPhone webapp: my ressources don't get cached

  - by Savageman

  Hello, First of all, I'd like to say I'm not using any off-line feature from HTML5. I have a web-application which runs on the iPhone. When viewing it from safari, everything works quite well. But when I launch the application from the home screen (to remove the navigation bar), it can be really slow. I checked the logs in Apache and it appears that Safari does a good work to cache the resources (css / js / images), with Apache answering "304 Not Modified" when needed. However, when the web app run as a "real" application (navigation bar hidden), those resources doesn't get cached and Apache the content has to be transferred over and over again (response code 200 Ok + content), resulting in a significantly slower page load. How can I prevent this behavior? Do I need to always run my webapp inside Safari, even when it's launched from the home screen? Thank you!

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• XNA Sprite Clipping Incorrectly During Rotation

  - by user1226947

  I'm having a bit of trouble getting my sprites in XNA to draw. Seemingly if you use SpriteBatch to draw then XNA will not draw it if for example (mPosition.X + mSpriteTexture.Width < 0) as it assumes it is offscreen. However, it seems to make this decision before it applies a rotation. This rotation can mean that even though (mPosition.X + mSpriteTexture.Width < 0), some of the sprite is still visible on screen. My question is, is there a way to get it to draw further outside the viewport or temporarily disable sprite clipping during a certain spriteBatch.draw(...)? sb.Draw(mSpriteTexture, mPosition, new Rectangle(0, 0, mSpriteTexture.Width, mSpriteTexture.Height), Color.White, Globals.VectorToAngle(mOrientation), new Vector2(halfWidth, halfHeight), scale, SpriteEffects.None, 0);

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• How can I customize my bootloader to make it prettier?

  - by Matthew

  I hate how when I turn on the computer it just (after the hp logo, which I hate having also), shows white text on a black background. I'm wondering if there's easy ways to customize this (I'm choosing between Windows 7 and two separate Ubuntu 10.10 installs). I've read a little about some complicated ways to do this, but is there not some simpler ways by installing a package on ubuntu or something? I don't want to hack a bunch of code together to get a simple effect. I'm hoping for actual images and having like the windows 7 logo and ubuntu logo to choose from. Ideas?

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• iPad as programming platform--What future do touch screens have with programming?

  - by user94154

  I read this question a few weeks ago. I thought about it when I first saw the iPad. Do you think it would be possible to set up a development environment on the iPad? I think it would be awesome if there was an InstantRails App, a Django App, maybe even 280 North's Atlas could run on it :). Would you develop using an on-screen keyboard and a 10 inch screen? Steve Jobs seems to think touch-screens are the future of web browsing. What Future does touch have with programming?

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• Poll database using jQuery/Ajax

  - by Gav

  Hi guys, I am trying to use jQuery (latest version) & ajax to poll a mysql db every x seconds, post.php does a simple search query on the table and limits to 1 row. (eg SELECT id FROM TABLE LIMIT 1) I've got some other jQuery UI (using v1.8) code that displays some modal/dialog boxes on the screen, simply put if post.php returns something from the db I need to initialise the dialog to pop up onto the screen. I've done all the popup stuff I am just having issues joining all these bits together - i've added some pseudo code of how i expect this to work. Thanks in advance var refreshId = setInterval(function(){ $.ajax({ type: "POST", url: "post.php", data: "", success: function(html){ $("#responsecontainer").html(html); } }); }, 2000 );s /* proposed pseudocode */ if (ajax is successful & returns a db row to #responsecontainer) { show jQueryUI modal (done this bit already fortunately) }

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• iPhone post-processing with a single FBO with Opengl ES 2.0?

  - by Jing

  I am trying to implement post-processing (blur, bloom, etc.) on the iPhone using OpenGL ES 2.0. I am running into some issues. When rendering during my second rendering step, I end up drawing a completely black quad to the screen instead of the scene (it appears that the texture data is missing) so I am wondering if the cause is using a single FBO. Is it incorrect to use a single FBO in the following fashion? For the first pass (regular scene rendering), I attach a texture as COLOR_ATTACHMENT_0 and render to a texture. glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texturebuffer, 0) For the second pass (post-processing), I attach the color renderbuffer to COLOR_ATTACHMENT_0 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, colorRenderbuffer) Then use the texture from the first pass for rendering as a quad on the screen.

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• X11 and ARGB visuals: does DefaultDepth() never return 32?

  - by Andy

  Hi, I'm establishing a connection to the X server like this: display = XOpenDisplay(NULL); screen = DefaultScreen(display); depth = DefaultDepth(display, screen); I'm wondering now why "depth" is always set to 24. I would expect that it is only 24 when compositing is turned off, but in fact, it is still 24 even when I turn on compositing. So in order to get a 32-bit ARGB visual I need to call XGetVisualInfo() first with depth set explicitly to 32. Now to my question: Will DefaultDepth() generally never return more than 24 or is it just on my system? (my graphics board is somewhat dated...). I know that it could return 15, 16 or even 8 for a CLUT display but can it return 32? Or do I always have to use XGetVisualInfo() first to get a ARGB 32-bit visual? Thanks, Andy

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• UISwitch text not showing on device

  - by iFloh

  Hi, I have a screen with several UISwitch controls. On my iPhone simulator this screen works correctly and The Switch text shows as On/Off. Different on my testing device (iPod Touch). Here the text seems to get lost and I only get "1" (instead of "On") and "0" (instead of "Off"). I don't know where the iPod Touch is different and why it's not showing correctly. Anyone had a similar experience? Is this a bug? Cheers

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• Manually force touch points to reset in Windows 8?

  - by loyalpenguin

  Hi I developed a HTML5/JAVASCRIPT app that is supported using advertisement for the Win8 store. I just by chance happened to notice that if you touch the screen, drag your finger over the advertisement, and release your finger on top of the advertisement that the specific touch is not released and instead when you touch again it registers as a separate touch. This has caused my app to behave expectantly when the user interacts with the app using touch. I wanted to know if it was possible to force the touches to reset so that when the user touches the screen again it is always using "Touch(0)".

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• how to add image button for a datagrid ( drill down grid)

  - by prince23

  hi i need to perform drill down data grid operation using silver light . the screen shoot wat i have provided is done using asp.net and image 1 now i have done the same thing using silver light 4. n promblem: i havent added an image button in data grid i dnt know how to do it in silver light where i shold be placing eitther in datatemplate are wat ? . how to handle the event and change the state and once i click an row i should be changing the state of image that is from image1 to image2 telling the row is expanded i thinking by looking at the screen shoot you people can come to know wat i am actually looking for i want to display data in same way using expand and collpase using the image button any code on it how to achive this one would be really help full for me. plz help me out crying 4 an help from past 2days. i have searched entire google would not found how to solve the promblem thanks

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• Help using Lisp debugger

  - by Joel

  I'm trying understand how to interpret the output of, and use, the Lisp debugger. I've got a pretty simple Backtrace for the evaluation of my function, but I cann't seem to work out how to use it to find out in which Lisp 'form' in my function the exception occurred. I'd appreciate any clues as to what I should be doing, to find the source of the error. I've attached a screen shot (if it's too small to read I can re-post it in parts), with the debug output, the function and the repl (please ignore my very wrong function, I'm just interested in learning how to use the debugger properly). In addition, I hit 'v' on the first frame to go to the source, but this resulted in the error at the bottom of the screen.

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• Application for taking pretty screenshots (like OS X does)

  - by Oli

  I've been building a website for a guy who uses Mac OS X and occasionally he sends me screenshots of bugs. They come out looking like this: This is fairly typical of Mac screenshots. You get the window decorations, the shadow from the window and a white or transparent background (not the desktop wallpaper -- I've checked). Compare this to an Ubuntu window-shot (Alt+Print screen): It's impossible to keep a straight face and say the Ubuntu one anywhere near as elegant. My question is: Is there an application that can do this in Ubuntu? Edit: Follow up: Is there an application that can do this in one move? Shutter is pretty good but running the plugin for every screenshot is pretty tiresome as it doesn't seem to remember my preference (I want south-shadow and that requires selecting south, then clicking refresh, then save) and it's more clicks than I'd like. Is there a simple way of telling shutter I want south-shadow for all screenshots (except entire desktop and area-selection)?

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• Graphics corrupt after upgrade from 11.10 to 12.04

  - by RiaanZA

  I'm stuck at the moment with an ubuntu that boots into an unusable white screen after upgrading from 11.10 to 12.04. I've tried booting into safe X mode but it just throws me back to the safe menu every time. Restore previous graphics driver, use default graphics configuration and set up new graphics configuration all don't work either. I've tried various methods of resetting the graphics from the command line, but none are working due to unmet dependencies. These cannot be fixed by doing the normal "apt-get -f install" because its saying there is a dpkg error in var/lib/dpkg/status (blank line relating to skype-wrapper). I haven't been able to find any other way to fix the dependencies yet. Can someone please give me some advice on what to do, I really don't want to go the re install route.

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