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  • testing helpers with 'haml_tag'

    - by crankharder
    module FooHelper def foo haml_tag(:div) do haml_content("bar") end end end When I test this I get: NoMethodError: undefined method `haml_tag' This code is perfectly valid and works in a development/production environment. It's something to do with having the haml helpers properly loaded in the test environment. Thanks!

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  • Highlight certain choices in a combo box

    - by calico-cat
    I've got a dropdown box with some items in it that are more popular than others, and I'd like those to have a different background colour (say, Color.AliceBlue) when the combobox is expanded. I see BackColor but is there a way to apply background colour to just a single item?

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  • QObject::connect not connecting signal to slot

    - by user1662800
    I am using C++ and Qt in my project and my problem is QObject::connect function doesn't connect signal to a slot. I have the following classes: class AddCommentDialog : public QDialog { Q_OBJECT public: ...some functions signals: void snippetAdded(); private slots: void on_buttonEkle_clicked(); private: Ui::AddCommentDialog *ui; QString snippet; }; A part of my Main window: class MainWindow : public QMainWindow { Q_OBJECT public: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); private slots: void commentAddedSlot(); void variableAddedSlot(); ... private: AddCommentDialog *addCommentDialog; ... }; Ant the last dialog; class AddDegiskenDialog : public QDialog { Q_OBJECT public: ... signals: void variableAdded(); private slots: void on_buttonEkle_clicked(); private: Ui::AddDegiskenDialog *ui; ... }; In the main window constructor i connect signals and slots: addCommentDialog=new AddCommentDialog(); addDegiskenDialog=new AddDegiskenDialog(); connect(addDegiskenDialog, SIGNAL(variableAdded()), this, SLOT(variableAddedSlot())); connect(addCommentDialog, SIGNAL(snippetAdded()), this, SLOT(commentAddedSlot())); The point is my commentAddedSlot is connected to it's signal successfully, but commentAddedSlot is failed. There is the Q_OBJECT macros, no warning such as about no x slot. In addition to this, receivers(SIGNAL(snippetAdded())) gives me 1 but receivers(SIGNAL(variableAdded())) gives me 0 and i used commands qmake -project; qmake and make to fully compile. What am i missing?

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  • What are MVP and MVC and what is the difference?

    - by Wolfbyte
    When looking beyond the RAD (drag-drop and configure) way of building User Interfaces that many tools encourage you are likely to come across 2 design patterns called Model-View-Controller and Model-View-Presenter. My question has two parts to it: What issues do these patterns address? How are they similar? How are they different?

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  • Which graphical enviroment?

    - by Knowing me knowing you
    Which graphical environment (MFC, ATL, QT etc.) should I concentrate on, in order to be more employable? I don't want to spend months learning something only to discover that "no one" really use this or this really sucks, and "all" pros are using only such and such.

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  • Improving MVP in Scala

    - by Alexey Romanov
    The classical strongly typed MVP pattern looks like this in Scala: trait IView { } trait Presenter[View <: IView] { // or have it as an abstract type member val view : View } case class View1(...) extends IView { ... } case object Presenter1 extends Presenter[View1] { val view = View1(...) } Now, I wonder if there is any nice way to improve on it which I am missing...

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  • How can I easily keep consistent UI settings in C# Winform application?

    - by Lukas
    I have a lot of different UserControls and would like to maintain consistent UI settings (mainly colors and fonts). My first try was this: public class UISettings { //... public void SetupUserControl(ref UserControl ctrl) { ctrl.BackColor = this.BackColor; } } to be called in every control like this: settings.SetupUserControl(ref this); As this is read-only it cannot be passed by ref argument so this does not work. What are other options to keep consistent UI without manually changing properties for every item?

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  • Icons: How does a developer with no design skill make his/her application icons look pretty?

    - by Martin
    I probably spend far too much time trying to make my visual interfaces look good, and while I'm pretty adept at finding the right match between usability and style one area I am hopeless at is making nice looking icons. How do you people overcome this (I'm sure common) problem? I'm thinking of things like images on buttons and perhaps most important of all, the actual application icon. Do you rely on third party designers, in or out of house? Or do you know of some hidden website that offers lots of icons for us to use? I've tried Google but I seem to find either expensive packages that are very specific, millions of Star Trek icons or icons that look abysmal at 16x16 which is my preferred size on in-application buttons. Any help/advice appreciated.

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  • Getting a JFrame's actual current location

    - by Ian Fellows
    Hello community, I am trying to create a (child) JFrame which slides out from underneath one side of a second (parent) JFrame. The goal is to then have the child follow the parent around when it is moved, and respond to resizing events. This is somewhat related to this question. I have tried using a ComponentListener, but with this method the child only moves once the parent has come to a stop, whereas I would like the child to move as the parent is dragged around the screen. Another option I attempted was to start a new refresher thread that continually updated the child's location using getLocation() or getLocationOnScreen(), but the lag was the same as with ComponentListener. Is there a way to get the true actual location of a JFrame even in the midst of a drag? or if not, is there a way to get the effect of a sheet sliding out from underneath and following the Frame around?

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  • Java serialization testing

    - by Jeff Storey
    Does anyone know if there is a library that exists to help test if an object graph is fully serializable? It would probably be as simple as writing it out and reading it back in, but I figured someone must have abstracted this already - I just can't find it.

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  • Which is the UI technology of the future considering: eye-candy-effect, interactivity (gestures, voc

    - by user193655
    If you had to write a next-gen application, in which on the surface (UI) you need some "futuristic features", by considering the following aspects which is the choice you'd make? 1) eye-candy: cool UI, 3D, Effects, nice graphics, sound transitions... 2) user interaction: not only mouse and keyboard but touch, voice and more.... + user interactivity aspect, which is the technology you'd choose? 3) X-platform: this is to have some X-platform discussion. Of course single platform technologies (as WPF) have may be some more power, anyway in a general discussion considering X-platform as a resource is important 4) available components: of course the coolest technology with no available components is may be an option for a component developer but not for an application developer My question is generic, but anyway * have in mind data-driven apps, not pure multimedia apps, videogames, ....

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  • How to hide the title bar while application is loading and show it when it finishes loading?

    - by Arci
    I have an application which uses a custom title bar. However, when my application launches, I noticed that the default title bar is shown for a brief period of time. My problem is I don't want to show the default title bar while my application is loading. How do I hide the title bar while my application is loading so that there will be no hint of it and then show it afterwards? So far, I tried the following solutions but none have worked: Hide the title bar in XML and then set the custom title bar in code. (Problem encountered: I received an error message saying: "You cannot combine custom titles with other title features".) In XML: <item name="android:windowNoTitle">true</item> In onCreate method: requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); //... some code goes here getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title_header); Set the size of the title bar in XML to 0. Then change it's size via code later. (Problem encountered: I don't know how to set the size of title bar in code. Is it possible? I tried getWindow().setAttributes() and getWindow().setLayout() but both of them didn't worked.)" In XML: <item name="android:windowTitleSize">30dp</item> Modify windowTitleBackgroundStyle and set a transparent drawable as background. (Problem encountered: The content of the title bar became invisible but a line below the title bar is still visible.) In XML: <!-- style used by windowTitleBackgroundStyle --> <item name="android:background">@drawable/transparent</item>

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  • Testing whether an event has happened after a period of time in jQuery

    - by chrism
    I'm writing a script for a form-faces xforms product that is keyed off an event built into form faces. The event is called 'xforms-ready'. I have define 'startTime' as happening as soon as the document in 'ready'. What I want the script to do is warn the user that it is taking too long before the 'xforms-ready' happens, say if it's been 6 seconds since 'startTime'. I can easily do things when the 'xforms-ready' event happens using the code below: new EventListener(document.documentElement, "xforms-ready", "default", function() { var endTime = (new Date()).getTime(); } ); however the warning will want to happen before 'endTime' is defined. So I guess I want something that works like this: If 6 seconds has passed since startTime and endTime is not yet defined do X or possibly more efficiently: If 6 seconds has passed since startTime and 'xforms-ready' has not yet happened do X Can anyone suggest a way of doing this?

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  • Which MS technologies would be suited for a data intensive application?

    - by steve.tse
    I'm a junior VB.net developer with little application design knowledge. I've been reading a lot of material online regarding different design patterns, frameworks, and methodologies. It's become a bit confusing for me. Right now I'm trying to decide on what language would be best suited to convert an existing VB6 application (with SQL server backend.) I need to update the UI and add more user functionality and reporting capabilities. Initially I was thinking of using WPF and attempting the MVVM model for this big project. Reports would be generated from SSRS. A peer suggested using ASP.net and I don't have enough experience to determine what would be better. The senior programmers here are stuck on using VB6 and don't have any input on what to use. They are encouraging me to use the latest technologies. This application would be for ~20 users in a central location. Ideally I would stick to a Microsoft .net language. Current interface is similar to a datagrid table where the user would click in to see the detail of each record. They would need to have multiple records open at any given time. I look forward to all the advice I can get. EDIT 2010/04/22 2:47 PM EST What is your audience? Internal clients within an intranet How complex are the interactions you expect to implement? not very... displaying data from SQL server to UI. Allow user updates to said data. Typically just one user modifying a record. Do you require near real-time data updates? no How often do you expect to update the application after the first release? twice/year Do you expect a well-defined set of client platforms? Yes, windows xp environment, potentially upgrading to Win7. Currently in IE.6 moving to IE7 or 8 within a couple of months. Do users need access from anywhere? No, just from their PC.

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  • Is is possible to make a shaped, alpha-blended dialog?

    - by jgaa
    I'm making a non-rectangular dialog, modelled over an image from Photoshop (the image is the background of the dialog, and the user will see trough the transparent part of the image). I'ts like a dashboard-style window for a media-app with a few custom-drawn controls. Most of the background-image is either opaque or 100% transparent - but in between there is a thin area of partially transparent pixels, ment to blend the image smootly into the background. This works great for web-graphics, but I have not found a way to make this work for Windows windows. I'm using the Windows Template Library (WTL), msvc 2008 - and the app must run on Windows XP as well as Vista and Windows 7. Currently, I'm simply using the opaque part of the background-image to create a GDI clipping-region, but this gives pretty rough edges. Does anyone know about any API functions to accomplish this (part of WTL, or reachable from WTL)?

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  • Handling right-click within a MenuItem

    - by tylerl
    Is it possible to check for a right-click on a menu item in .NET? It appears that the framework doesn't expose it as an Event, but I've seen other applications (like Chrome and Firefox) which allow you to bring up a right-click context menu for a menu item. Presumably with a little event-loop magic you can do the same thing in .NET, right?

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  • bash testing a group of directories for existence

    - by Jim Jones
    Have documents stored in a file system which includes "daily" directories, e.g. 20050610. In a bash script I want to list the files in a months worth of these directories. So I'm running a find command find <path>/200506* -type f >> jun2005.lst. Would like to check that this set of directories is not a null set before executing the find command. However, if I use if[ -d 200506* ] I get a "too many arguements error. How can I get around this?

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  • exposing subcontrols from the custom widget plugin in QT

    - by Santosh
    I am using QT 4.3. I have created one custom widget plugin. I could be able to show it in the desiner tool box as well as use it on the form with no problem. This custom widget internally holds QGroupBox, QLabel, QTextEdit. Now I want to apply the styles to individual componets of this custom widget. I want to expose these internal conrols as sub-control and style them. This would be similar to tear subcontrol of QTabWidget. In style sheet we can refer it as QTabWidget::tear... Is there any way by which I can do similar thing with my custom widget?

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  • How can I position QDockWidgets as the screen shot shows using code?

    - by Nathan
    I want a Qt window to come up with the following arrangement of dock widgets on the right. Qt allows you to provide an argument to the addDockWidget method of QMainWindow to specify the position (top, bottom, left or right) but apparently not how two QDockWidgets placed on the same side will be arranged. Here is the code that adds the dock widgets. this uses PyQt4 but it should be the same for Qt with C++ self.memUseGraph = mem_use_widget(self) self.memUseDock = QDockWidget("Memory Usage") self.memUseDock.setObjectName("Memory Usage") self.memUseDock.setWidget(self.memUseGraph) self.addDockWidget(Qt.DockWidgetArea(Qt.RightDockWidgetArea),self.memUseDock) self.diskUsageGraph = disk_usage_widget(self) self.diskUsageDock = QDockWidget("Disk Usage") self.diskUsageDock.setObjectName("Disk Usage") self.diskUsageDock.setWidget(self.diskUsageGraph) self.addDockWidget(Qt.DockWidgetArea(Qt.RightDockWidgetArea),self.diskUsageDock) When this code is used to add both of them to the right side, one is above the other, not like the screen shot I made. The way I made that shot was to drag them there with the mouse after starting the program, but I need it to start that way.

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  • What are you using for Web UI/layout design?

    - by brendan
    What are folks out there using for web/ui design? For the most part we use PowerPoint at my company. The UI folks will mock up a screen in PowerPoint and we (the development group) will take it from there. So, for a side gig of mine I decided to do some mock ups to show the client prior to dev and I'm quickly feeling that PowerPoint is not the right tool for this. What are you using for this type of stuff - some other software? pen/paper?

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