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• Adding a subview to UITableCellView

  - by hanno

  I want to add a subview to my UITableCellView subclass. However, non of the provided views in the class seem to be able to do exactly what I was looking for. I basically want to add my own background view, filling the whole cell. However, if I replace the backgroundView, the style from the grouped table view layout isn't displayed anymore. If I…

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• Drawing and Animating with UIView or CALayer?

  - by Markus

  hello, i am trying to implement a graph which a uiview draws. There are 3 UIViews to animate a left/right slide. The problem is, that i can't cancel the UIView animation. So I replaced the UIViews by CALayer. Now, the question is if CALayer is appicable for this? Is it normal to draw on a CALayer like this? And why is a CALayer so slow when I…

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• How to set a Transparent Background of JPanel

  - by Imran

  Hi, I need to know if a JPanel`s bacground can be set to Transparent? My frame is has two Jpanels Image Panel and Feature Panel, Feature Panel is overlapping Image Panel, the Image Panel is working as a background and it is loading image from a remote Url, now I want to draw shaps on Feature Panel , but now Image Panel cannot be seen due to…

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• Find coordinate by angle

  - by George Johnston

  I am developing in application in XNA which draws random paths. Unfortunately, I'm out of touch with graphing, so I'm a bit stuck. My application needs to do the following: Pick a random angle from my origin (0,0), which is simple. Draw a circle in relation to that origin, 16px away (or any distance I specify), at the angle found above. …

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• Fireing Android Dialogs from another thread without Message Loop

  - by Jox

  In a SurfaceView, I'm dispatching new thread that draws on canvas within standard "LockCanvas-Draw-unlockCanvasAndPost" loop. (note that thread doesn't contains message loop). How to show Android standard Dialog from that thread? As thread doesn't have msg loop, following code doesn't work: Builder builder = new AlertDialog.Builder(this);…

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• iPhone – Best method to import/drawing UI graphic elements? CGContextDrawPDFPage?

  - by Ross

  Hello, What is the best way to use the custom UI graphics on the iPhone? I've come across CGContextDrawPDFPage and Panic's Shrinkit. Should I be using storing my vector ui graphics as PDF's and loading them using CGContextDrawPDFPage to draw them. I did previously asked what way Apple store their UI graphics and was answered crushed png.…

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• CoreGraphics on iPhone. What is the proper way to load a PNG file with pre-multiplied alpha?

  - by dugla

  For my iPhone 3D apps I am currently using CoreGraphics to load png files that have pre-multiplied alpha. Here are the essentials: // load a 4-channel rgba png file with pre-multiplied alpha. CGContextRef context = CGBitmapContextCreate(data, width, height, 8, num_channels * width, colorSpace, kCGImageAlphaPremultipliedLast |…

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• Does anyone know of a library in Java that can parse ESRI Shapefiles?

  - by KingNestor

  I'm interested in writing a visualization program for the road data in the 2009 Tiger/Line Shapefiles. I'd like to draw the line data to display all the roads for my county. The ESRI Shapefile or simply a shapefile is a popular geospatial vector data format for geographic information systems software. It is developed…

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• rails is loading from routes instead of the public folder

  - by djacobs7

  I have a rails app. I have a file in #{RAILS_ROOT}/public/swfs/somthing.swf. Locally, when running with webrick, when I go to the url localhost:3000/swfs/something.swf, my swf loads just fine. My routes.rb file looks like the following ActionController::Routing::Routes.draw do |map| map.connect ':controller/:action/:id' …

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• Need advice on speeding up tableViewCell photo loading performance

  - by ambertch

  I have around 20 tableview cells that each contain a number (2-5) thumbnail sized pictures (they are VERY small Facebook profile pictures, ex. http://profile.ak.fbcdn.net/hprofile-ak-sf2p/hs254.snc3/23133_201668_2989_q.jpg). Each picture is an UIImageView added to the cell's contentview. Scrolling performance is poor, and…

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• How to use VisualStyleRenderer in Windows 7?

  - by Paulo Santos

  In a small project of mine I've came across the need of a collapsible group box. Searching the Net, I've found one here. In one of the comments there's an improvement on the original code that uses the VisualStyleRenderer class in order to acquire the TreeView open and closed glyph. Running the code it draws properly the…

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• Distance by sea calculator, intermediate coordinates?

  - by Lucian2k

  How do I calculate distance between 2 coordinates by sea? I also want to be able to draw a route between the two coordinates. Only solution I found so far is to split a map into pixels, identify each pixel as LAND or SEA and then try to find the path using A* algorithm. Then transform pixels to relative coordinates. …

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• mfc tab control switch tabs

  - by MRM

  I created a simple tab control that has 2 tabs (each tab is a different dialog). The thing is that i don't have any idea how to switch between tabs (when the user presses Titlu Tab1 to show the dialog i made for the first tab, and when it presses Titlu Tab2 to show my other dialog). I added a handler for changing…

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• 2d graph in real-time by using opencv and c++

  - by user2758510

  I have a really basic question in opencv and c++. I am trying to graph something in real time by using opencv. I am looking to find a function to draw a graph in rel-time. But still unssuccesful. I need a function that gets two arrays as an input one for x axis and one for y. I tried with this but seems not work…

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• Adding text over existing PDFs using reportlab

  - by Shane

  I'm interested in filling out existing PDF forms programatically. All I really need to do is pull information from user input and then place the appropriate text over an existing PDF in the appropriate locations. I can already do this with reportlab by feeding the same sheet of paper into a printer, twice, but…

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• Adding C++ Object to Objective-C Class

  - by Winder

  I'm trying to mix C++ and Objective-C, I've made it most of the way but would like to have a single interface class between the Objective-C and C++ code. Therefore I would like to have a persistent C++ object in the ViewController interface. This fails by forbidding the declaration of 'myCppFile' with no…

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• Ruby DEPRECATION WARNING: You are using the old router DSL which will be removed in Rails 3.1.

  - by user297221

  Hi guys. I am using rails 3 and at the moment i am writing tests for my application. I get this weird deprecation warning: DEPRECATION WARNING: You are using the old router DSL which will be removed in Rails 3.1. Please check how to update your routes file at:…

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• "TypeError: CreateText() takes exactly 8 arguments (5 given)" with default arguments

  - by Eli Nahon

  def CreateText(win, text, x, y, size, font, color, style): txtObject = Text(Point(x,y), text) if size==None: txtObject.setSize(12) else: txtObject.setSize(size) if font==None: txtObject.setFace("courier") else: …

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• Where can I find a nice .NET Tab Control for free?

  - by Nazgulled

  I'm doing this application in C# using the free Krypton Toolkit but the Krypton Navigator is a paid product which is rather expensive for me and this application is being developed on my free time and it will be available to the public for free. So, I'm looking…

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• Change the size of the text in legend according to the length of the legend vector in the graph

  - by user1021713

  I have to draw a 20 plots and horizontally place a legends in each plots. I gave the following command for the first plot: plot(x=1:4,y=1:4) legend("bottom",legend = c("a","b","c","d"),horiz=TRUE,text.font=2,cex=0.64) then for the second plot I tried : …

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• WPF Separator position

  - by morsanu

  Hey, I'm using a Separator to draw a vertical line inside a Border. At first this was ok because the line needed to be centered, but now I need to position it at a custom x-position from the left border. Is there a way to do that? <Border…

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• Alpha transparent PNGs not displaying correctly in Mobile Safari

  - by worksology

  I'm using some semi-transparent PNGs as background-images on various websites. These are usually something like a 1x1 image with a 30-percent opaque white layer. I've noticed that Mobile Safari does not display them correctly, giving them a…

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• How can I differentiate between smart phones and others?

  - by Denis Hoctor

  Hi all, I'm looking to revamp our mobile site with something simple for phones below the ambiguous smart phone category and something a little more interesting for the phones above this category. I'm not interested in WAP/WML for this…

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• CGContext rotation

  - by kasperjj

  I have a 100x100 pixel image that I want to draw at various angles rotated around the center of the image. The following code works, but rotates around the original origo of the coordinate system (upper left hand corner) and not the…

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• How to flip the origin.y of an CGRect?

  - by mystify

  I'm trying to draw an UIImageView, but the frame's origin is wrong when I flip the coordinate system for drawing not upside-down. CGRect imgRect = imgView.frame; imgRect.origin.y += 10.0f; CGContextTranslateCTM(context, 0.0f,…

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