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  • How to prevent the beep sound caused by alt key pressed in a WinForms TextBox?

    - by Michael Johnson
    I'm creating a routine that allows the user to replicate keyboard shortcuts into a textbox for 'custom keyboard shortcuts' customization, but every time the alt key is pressed with another letter, it produces another sound. I'm capturing the keys in the textbox_keydown event to parse the modifiers + other keys into a readable Shift + A or Ctrl + Shift + B manner into that very same textbox. Should I be doing this in a different event like textbox_previewkey instead of textbox_keydown? How can I prevent the alt modifier key + a letter or number causing the Beep sound? the textbox is just a normal .net 3.5 textbox with the only edited properties of it being the ReadOnly property to false. Is there a better way I could re-do this? I'm currently just checking that if any modifiers keys are pressed and then + a-z or 0-9, then to go ahead and input the appropriately pressed keys into that same textbox like Shift + A or Ctrl + Shift + Y.

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  • anonymous access disabled but...

    - by Melody Friedenthal
    My web app (asp VB 2005) uses Windows authentication. If the user isn't part of a specific AD security group they don't get to edit the data; instead I redirect the user to a read-only page. The program works fine in the IDE. I published the web app to my laptop and Disabled anonymous access. When I ran the program I got redirected to the read-only page. I added a write event to the application event log to see what was going on, and found that the WindowsPrincipal.Identity.Name contained my laptop's ID, not my user name. I reassert: anonymous access is disabled in IIS and the web.config file has Windows Authentication. Can anyone suggest what else to check? Or can you explain what's going on?

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  • Flash upload problems (FileReferenceList, timeouts, #2038 )

    - by binaryLV
    Hello! I'm having problems with timeouts while trying to upload multiple files by using FileReferenceList. upload() is being called in a loop for all selected files on Event.SELECT event of FileReferenceList, but only 2 files are being uploaded simultaneously (I also see 2 opened sockets that are used for uploading by running netstat -aon | find "127.0.0.1:80"). If uploading of any file is not started in 60 seconds, I get a #2038 error. E.g., if I try to upload three large files (like 500MB each), first two uploads are started immediately, third one is not started (because limit is 2 simultaneous uploads) and it fails after 60 seconds with #2038 error (I'm fairly sure that this is because of timeout - tested it). This could be solved by calling upload() only when uploading previous file is completed, but I don't want to "hard-code" the number of possible simultaneous uploads (2 on my PC). Is there any way to get/set this number at runtime?

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  • Protocol buffer deserialization and a dynamically loaded DLL in Compact Framework

    - by cloudraven
    I saw a question related to this on the full framework here. Since it seems to have stayed unresolved for quite a while and this is for the compact framework, I though it would be better to create a new question for it. I want to deserialize types for which I am loading assemblies dynamically (with Assembly.LoadFrom) and I am getting a "Unable to identify known-type for ProtoIncludeAttribute" error. In the related question I mentioned, it was hinted that hooking AppDomain.AssemblyResolve event would help solving the problem. It makes sense for the full framework, but that event is not available in the CF. I wonder if there is a way to do this with CF. The structures I am using look a lot like this and all the classes required for deserialization are loaded from the same Assembly. If the assembly is referenced instead of dynamically loaded it works fine, but fails if done dynamically.

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  • Flex 4 app with mate design question

    - by chchrist
    Hi all, I have a view with a DropDownList component and a DataGroup component. The dropdownlist has to be updated from a remote php object and on change to call another remote object service in order to update the datagroup's provider. So I am thinks to dispatch an event from my view and the in my EventMap to call the service and inject the result to the drop down. When the dropdown changes I'll dispatch another event and in the EventMap I'll call another service and I'll inject the result to the datagroup. Is there another more sophisticated way? Thanks in advance

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  • Is there any way to add a MouseListener to a Graphic object ?

    - by Fahad
    Hi, Is there any way to add a MouseListener to a Graphic object. I have this simple GUI that draw an oval. What I want is handling the event when the user clicks on the oval import java.awt.*; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import javax.swing.*; public class Gui2 extends JFrame { JFrame frame = new JFrame(); MyDrawPanel drawpanel = new MyDrawPanel(); public static void main(String[] args) { Gui2 gui = new Gui2(); gui.go(); } public void go() { frame.getContentPane().add(drawpanel); // frame.addMouseListener(this); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(300, 300); frame.setVisible(true); } } class MyDrawPanel extends JComponent implements MouseListener { public void paintComponent(Graphics g) { int red = (int) (Math.random() * 255); int green = (int) (Math.random() * 255); int blue = (int) (Math.random() * 255); Color startrandomColor = new Color(red, green, blue); red = (int) (Math.random() * 255); green = (int) (Math.random() * 255); blue = (int) (Math.random() * 255); Color endrandomColor = new Color(red, green, blue); Graphics2D g2d = (Graphics2D) g; this.addMouseListener(this); GradientPaint gradient = new GradientPaint(70, 70, startrandomColor, 150, 150, endrandomColor); g2d.setPaint(gradient); g2d.fillOval(70, 70, 100, 100); } @Override public void mouseClicked(MouseEvent e) { if ((e.getButton() == 1) && (e.getX() >= 70 && e.getX() <= 170 && e.getY() >= 70 && e .getY() <= 170)) { this.repaint(); // JOptionPane.showMessageDialog(null,e.getX()+ "\n" + e.getY()); } } @Override public void mouseEntered(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mousePressed(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseReleased(MouseEvent e) { // TODO Auto-generated method stub } } This Works Except it fires when the click is within a virtual box around the oval. Could anyone help me to have it fire when the click is EXACTLY on the oval. Thanks in advance.

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  • LoaderContext and ApplicationDomain changes with Adobe AIR ?

    - by Tyn
    Hello, I'm currently experimenting with loading external SWF files from both an standard AS3 application, and an AIR application. It seems that the AIR application doesn't act the same way a standard SWF run by the Flash Player does. According to the documentation, the applicationDomain property of LoaderContext is usable in an AIR application too, but it just seems to be not working. I have the following code : package { import flash.display.Loader; import flash.display.LoaderInfo; import flash.display.Sprite; import flash.events.Event; import flash.net.URLRequest; import flash.system.ApplicationDomain; import flash.system.LoaderContext; public class Invoker extends Sprite { private var _ldr : Loader; public function Invoker() { _ldr = new Loader(); _ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, onChildOneComplete); var ldrC : LoaderContext = new LoaderContext(false, new ApplicationDomain(ApplicationDomain.currentDomain) ); _ldr.load(new URLRequest("otherSwf.swf"), ldrC); } private function onChildOneComplete(e : Event) : void { var c1ad : ApplicationDomain = (e.target as LoaderInfo).applicationDomain; var inad : ApplicationDomain = ApplicationDomain.currentDomain; trace("Child One parentDomain : " + c1ad.parentDomain); trace("Invoker parentDomain : " + inad.parentDomain); trace("Child One has Invoker : " + c1ad.hasDefinition("Invoker")); trace("Invoker has Invoker : " + inad.hasDefinition("Invoker")); } } } Compiling this code as an SWF file and launching it with the Flash Player does this output, which seems right : Child One parentDomain : [object ApplicationDomain] Invoker parentDomain : null Child One has Invoker : true Invoker has Invoker : true But the same code as an AIR application does a different output : Child One parentDomain : null Invoker parentDomain : null Child One has Invoker : false Invoker has Invoker : true According to the documentation, the first output (using a SWF with Flash Player, and not an AIR application) is the right one. Also, playing around with this snippet and changing the application domain to others possible configurations (like new ApplicationDomain(null), or ApplicationDomain.currentDomain) does exaclty what the documentation says with the SWF, but does not change the output of the AIR application. Any clue why AIR is simply ignoring the application domain passed to the loader context ? Any documentation about this particular issue ? Thank you very much.

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  • array won't work actionscript 3

    - by steve
    I've tried everything. Arrays are quite simple so I don't know why this doesn't function: var menuList:Array = [menu_bag_mc,menu_chips_mc,menu_coke_mc,menu_cup_mc,menu_deodorant_mc,menu_fork_mc,menu_knife_mc,menu_lighter_mc,menu_milk_mc,menu_pill_mc,menu_rings_mc,menu_shampoo_mc,menu_spoon_mc,menu_straw_mc,menu_toothbrush_mc,menu_trashbag_mc,menu_water_mc]; function captureAllClicks(event:MouseEvent):void { trace(menuList.indexOf(event.target)); } stage.addEventListener(MouseEvent.CLICK, captureAllClicks); Every time I click on any of the items on the stage (which are all given the instance names listed above. each is a tweening movieclip containing a button) I get a trace of -1. WHY?!

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  • Flex 3.0 Drag and Drop

    - by C-Man
    Hi all! I have encountered a problem in a Flex application. I have implemented drag and drop support from a List to a Canvas, and I DragManagers doDrag() - with.a proxy-image. In my custom DragDrop event handler, i place a new item on the Canvas. I use the event.localX/localY to position the new item. It is working ok, but the problem is that I want the "new" image to appear exactly where the proxy-image is when i release the mouse button (x/y -wise). Can I somehow get the proxys X,Y location. I thought that DragManager would have a reference to it but I can´t find it. Thanks /C

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  • JQuery Modal Dialog Form Submission

    - by peterwkc
    I have a JQuery Modal Form and when i add the submit event, it cannot display as dialog but rather than embedded into browser window. If I uncomment the click event below, it will embedded into browser window rather than show as dialog. $(document).ready(function(){ //$("#moveTicketBtn").click() { // $("#moveUnknownTicket").submit(); //}; $("#moveUnknownTicketDialog").dialog( { title: "Move Unknown Ticket", autoOpen: true, modal: true, resizable: true, stack: true, width: 500, height: 350 }); }); Does anyone have any idea why it is like this? Please help. Thanks.

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  • How Do I get the current instance from an AppDomain?

    - by Spanners
    Hi, I use the default appdomain (AD) which I use to create new appdomains (AD1) when required for running plugins in isolation. When creating the new domain I also wire up the AppDomainUnload event to allow me to call clean up code etc. The issue I seem to have is: 1) Create AD1 from AD 2) Run code in AD1 3) Call AD.Unload(AD1) The code switches to AD1 and calls the unloading event passing in a reference to the current AppDomain (AD1). At this point I'd like to get a reference to the current instance running in AD1 to call a shutdown method however there is no GetInstance on the AppDomain class. Any ideas how I can go about getting it?

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  • Getting 'this' pointer inside dependency property changed callback

    - by mizipzor
    I have the following dependency property inside a class: class FooHolder { public static DependencyProperty CurrentFooProperty = DependencyProperty.Register( "CurrentFoo", typeof(Foo), typeof(FooHandler), new PropertyMetadata(OnCurrentFooChanged)); private static void OnCurrentFooChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FooHolder holder = (FooHolder) d.Property.Owner; // <- something like this // do stuff with holder } } I need to be able to retrieve a reference to the class instance in which the changed property belongs. This is since FooHolder has some event handlers that needs to be hooked/unhooked when the value of the property is changed. The property changed callback must be static, but the event handler is not.

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  • jQuery validation plugin doens't work for me

    - by Idsa
    I have the following code to enable validation work: $(document).ready(function() { $("#eventForm").validate({ rules: { startDate: "required", startTime: "required", endDate: { required: function (element) { var endTimeValue = $('#endTime').val(); return (endTimeValue != null && endTimeValue != ''); } }, endTime: { required: function (element) { var endDateValue = $('#endDate').val(); return (endDateValue != null && endDateValue != ''); } } }, messages: { startDate: "Please enter event local start date", startTime: "Please enter event local start time" }, errorPlacement: function (error, element) { error.appendTo(element.parent().next()); }, submitHandler: function (form) { var options = { dataType: 'json', success: eventCreationSuccess, error: eventCreationError }; alert('submit'); //$(form).ajaxSubmit(options); } }); }); But validation plugin doesn't catch submit - default submit is executed. jQuery and validation plugin scripts are imported.

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  • Cannot set focus on input field in infoWindow

    - by thomas
    Hi Why is focus not set to noteTitle? I am using google maps API V3. The getNoteForm() returns a input field "noteTitle". The $("#noteTitle").focus() works fine when executed in firebug. I call this function when clicking on the map: function setNewNoteInfowindow(latlng) { if (geocoder) { geocoder.geocode({'latLng': latlng}, function(results, status) { var address = ""; if (status == google.maps.GeocoderStatus.OK) { if (results[1]) { address = results[1].formatted_address; } } newNoteInfowindow = new google.maps.InfoWindow({ content: getNoteForm(latlng, address), size: new google.maps.Size(40,50) }); newNoteInfowindow.open(map, newNoteMarker); google.maps.event.addListener(newNoteInfowindow, 'domready', function() { $("#noteTitle").focus(); }); google.maps.event.addListener(newNoteInfowindow, 'closeclick', function() { newNoteMarker.setVisible(false); }); }); } }

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  • Calling javascript function with arguments using JSNI

    - by jav_000
    I'm trying to integrate Mixpanel with GWT, but I have problems calling an event with a property and one value. My function to track an simple event (without values): public native void trackEvent(String eventName)/*-{ $wnd.mixpanel.track(eventName); }-*/; It works. But when I want to add some properties and values, it doesn't work properly: public native void trackComplexEvent(String eventName, String property, String value)/*-{ $wnd.mixpanel.track(eventName, {property:value}); }-*/; I have 2 problems with this: 1) Mixpanel says the property name is: "property"(yes, the name of the variable that I'm passing, not the value). 2) Mixpanel says the value is:undefined An example from mixpanel web is: mixpanel.track("Video Play", {"age": 13, "gender": "male"}); So, I guess the problem is I'm doing a wrong call or with wrong type of arguments.

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  • Spring transaction management breaks hibernate cascade

    - by TimmyJ
    I'm having a problem where the addition of spring's transaction management to an application causes Hibernate to throw the following error: org.hibernate.HibernateException: A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance: org.fstrf.masterpk.domain.ReportCriteriaBean.treatmentArms org.hibernate.engine.Collections.processDereferencedCollection(Collections.java:96) org.hibernate.engine.Collections.processUnreachableCollection(Collections.java:39) org.hibernate.event.def.AbstractFlushingEventListener.flushCollections(AbstractFlushingEventListener.java:218) org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:77) org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) org.springframework.orm.hibernate3.SpringSessionSynchronization.beforeCommit(SpringSessionSynchronization.java:135) org.springframework.transaction.support.TransactionSynchronizationUtils.triggerBeforeCommit(TransactionSynchronizationUtils.java:72) org.springframework.transaction.support.AbstractPlatformTransactionManager.triggerBeforeCommit(AbstractPlatformTransactionManager.java:905) org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:715) org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:701) org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:321) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:116) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) $Proxy92.saveNewReportCriteria(Unknown Source) org.fstrf.masterpk.domain.logic.MasterPkFacade.saveNewReportCriteria(MasterPkFacade.java:134) org.fstrf.masterpk.controllers.ReportCriteriaController.setupReportType(ReportCriteriaController.java:302) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:413) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:134) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:310) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:297) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511) javax.servlet.http.HttpServlet.service(HttpServlet.java:710) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) I'm using Spring 2.5 and annotations to implement this management. Here is the class containing the saveNewReportCriteria method (which, as can be seen by the stack trace, is causing the error) @Transactional( propagation = Propagation.REQUIRED, isolation = Isolation.DEFAULT, readOnly = false) public class HibernateReportCriteriaDao implements ReportCriteriaDao{ private HibernateTemplate hibernateTemplate; public Integer saveNewReportCriteria(ReportCriteriaBean reportCriteria) { hibernateTemplate.save(reportCriteria); List<Integer> maxIdList = hibernateTemplate.find("SELECT max(id) from ReportCriteriaBean"); logger.info("ID of newly saved list is: " + maxIdList.get(0)); return maxIdList.get(0); } public void setHibernateTemplate(HibernateTemplate hibernateTemplate) { this.hibernateTemplate = hibernateTemplate; } } Then I added the following sections to my configuration files to tell spring that I am using annotation driven transaction management: <bean id="actgDataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="jdbc/actg" /> <property name="resourceRef" value="true" /> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="actgDataSource" /> </bean> <tx:annotation-driven/> I'm pretty sure that the de-referencing error is being caused due to the proxy class that Spring AOP creates and uses in order to handle transaction management, but I have no idea how I'd go about fixing it.

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  • How to make an scrollable UITextField Inside UItableViewCell?

    - by user333624
    Hello everyone. I created a bunch of editable UITableViewCell by embedding an UITextField inside, but I have seen some apps that allows you to scroll the UItableview by scrolling inside an inactive editable cell. How can I do that? And how can I also dismiss the keyboard when tapping somewhere else? I know about the method: - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; if (touch.tapCount == 1) { [self resignFirstResponder]; } else { }} I put it inside my custom table view controller but the method doesn't seem to be called upon a tap, and I don't know if even if it gets called will dismiss the keyboard. Any help will be appreciated.

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  • INotifyPropertyChange ~ PropertyChanged not firing when property is a collection and a new item is a

    - by eponymous23
    I have a class that implements the INotifyPropertyChanged interface. Some of the properties of the class are of type List. For example: public List<string> Answers { get { return _answers; } set { _answers = value; onPropertyChanged("Answers") } } ... private void onPropertyChanged(string propertyName) { if(this.PropertyChanged != null) this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } If I assign a new List<string> to Answer, then the PropertyChanged event fires as expected; but if I add a string string to the Answer list using the List Add method, then PropertyChanged event doesn't fire. I was considering adding an AddAnswer() method to my class, which would handle calling the lists's Add method and would call onPropertyChanged() from there, but is that the right way to do it? Is there a more elegant way of doing it? Cheers, KT

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  • Java accessing variables using extends

    - by delo
    So here I have two classes: Customer Order Class and Confirmation Class. I want to access the data stored in LastNameTextField (Customer Order Class) and set it as the text for UserLastNameLabel (Confirmation Class) after clicking a "Submit" button. For some reason however, the output displays nothing. Snippet of my code: package customer_order; public class customer_order extends Frame{ private static final long serialVersionUID = 1L; private JPanel jPanel = null; private JLabel LastNameLabel = null; protected JTextField LastNameTextField = null; private JButton SubmitButton = null; public String s; public customer_order() { super(); initialize(); } private void initialize() { this.setSize(729, 400); this.setTitle("Customer Order"); this.add(getJPanel(), BorderLayout.CENTER); } /** * This method initializes LastNameTextField * * @return javax.swing.JTextField */ public JTextField getLastNameTextField() { if (LastNameTextField == null) { LastNameTextField = new JTextField(); LastNameTextField.setBounds(new Rectangle(120, 100, 164, 28)); LastNameTextField.setName("LastNameTextField"); } return LastNameTextField; } /** * This method initializes SubmitButton * * @return javax.swing.JButton */ private JButton getSubmitButton() { if (SubmitButton == null) { SubmitButton = new JButton(); SubmitButton.setBounds(new Rectangle(501, 225, 96, 29)); SubmitButton.setName("SubmitButton"); SubmitButton.setText("Submit"); SubmitButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent e) { System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed() //THE STRING I WANT s = LastNameTextField.getText(); java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new confirmation().setVisible(true); } }); } }); } return SubmitButton; } package customer_order; public class confirmation extends customer_order{ private static final long serialVersionUID = 1L; private JPanel jPanel = null; // @jve:decl-index=0:visual-constraint="58,9" private JLabel LastNameLabel = null; private JLabel UserLastNameLabel = null; // @jve:decl-index=0: /** * This method initializes frame * * @return java.awt.Frame */ public confirmation() { super(); initialize(); } private void initialize() { this.setSize(729, 400); this.setTitle("Confirmation"); this.add(getJPanel(), BorderLayout.CENTER); } /** * This method initializes jPanel * * @return javax.swing.JPanel */ private JPanel getJPanel() { if (jPanel == null) { UserLastNameLabel = new JLabel(); UserLastNameLabel.setBounds(new Rectangle(121, 60, 167, 26)); //THE PROBLEM? UserLastNameLabel.setText(s); } return jPanel; }

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  • Unexpected StackOverflowError in KeyListener

    - by BillThePlatypus
    I am writing a program that can write sets of questions for review to a file for another program to read. The possible answers are typed into JTextFields at the bottom. It has code to ensure that there won't bew more than one blank JTextField at the end. When I type in answers, at varying points it will throw a StackOverflowError. The stack trace: Exception in thread "AWT-EventQueue-0" java.lang.StackOverflowError at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232) at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232) at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232) at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232) and the code: package writer; import java.awt.BorderLayout; import java.awt.Font; import java.awt.FontMetrics; import java.awt.GridLayout; import java.awt.Insets; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.ArrayList; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSplitPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; import main.QuestionSet; public class SetPanel extends JPanel implements KeyListener { private QuestionSet set; private WriterPanel writer; private JPanel top=new JPanel(new BorderLayout()),controls=new JPanel(new GridLayout(1,0)),answerPanel=new JPanel(new GridLayout(0,1)); private JSplitPane split; private JTextField title=new JTextField(); private JTextArea question=new JTextArea(); private ArrayList<JTextField> answers=new ArrayList<JTextField>(); public SetPanel(QuestionSet s,WriterPanel writer) { super(new BorderLayout()); top.add(controls,BorderLayout.PAGE_START); title.setFont(title.getFont().deriveFont(40f)); title.addKeyListener(new KeyListener(){ @Override public void keyTyped(KeyEvent e) { title.setText(WriterPanel.convertString(title.getText())); } @Override public void keyPressed(KeyEvent e) { title.setText(WriterPanel.convertString(title.getText())); } @Override public void keyReleased(KeyEvent e) { title.setText(WriterPanel.convertString(title.getText())); } }); title.getDocument().addDocumentListener(new DocumentListener(){ @Override public void insertUpdate(DocumentEvent e) { // TODO Auto-generated method stub fitTitle(); } @Override public void removeUpdate(DocumentEvent e) { // TODO Auto-generated method stub fitTitle(); } @Override public void changedUpdate(DocumentEvent e) { // TODO Auto-generated method stub fitTitle(); } }); top.add(title,BorderLayout.PAGE_END); this.add(top,BorderLayout.PAGE_START); question.setLineWrap(true); question.setWrapStyleWord(true); question.setFont(question.getFont().deriveFont(20f)); question.addKeyListener(new KeyListener(){ @Override public void keyTyped(KeyEvent e) { // TODO Auto-generated method stub question.setText(WriterPanel.convertString(question.getText())); } @Override public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub question.setText(WriterPanel.convertString(question.getText())); } @Override public void keyReleased(KeyEvent e) { // TODO Auto-generated method stub question.setText(WriterPanel.convertString(question.getText())); }}); split=new JSplitPane(JSplitPane.VERTICAL_SPLIT,true,new JScrollPane(question),new JScrollPane(answerPanel)); split.setDividerLocation(150); this.add(split,BorderLayout.CENTER); answers.add(new JTextField()); answerPanel.add(answers.get(0)); answers.get(0).addKeyListener(this); } private void fitTitle() { if(title==null||title.getText().equals("")) return; //title.setText(WriterPanel.convertString(title.getText())); String text=title.getText(); Insets insets=title.getInsets(); int width=title.getWidth()-insets.left-insets.right; int height=title.getHeight()-insets.top-insets.bottom; Font root=title.getFont().deriveFont((float)height); FontMetrics m=title.getFontMetrics(root); if(m.stringWidth(text)<width) { title.setFont(title.getFont().deriveFont((float)height)); return; } float delta=-100; while(Math.abs(delta)>.1f) { m=title.getFontMetrics(root); int w=m.stringWidth(text); if(w==width) break; if(Math.signum(w-width)==Math.signum(delta)||root.getSize2D()+delta<0) { delta/=-10; continue; } root=root.deriveFont(root.getSize2D()+delta); } title.setFont(root); } private void fixAnswers() { //System.out.println(answers); while(answers.get(answers.size()-1).getText().equals("")&&answers.size()>1&&answers.get(answers.size()-2).getText().equals("")) removeAnswer(answers.size()-1); if(!answers.get(answers.size()-1).getText().equals("")) { answers.add(new JTextField()); answerPanel.add(answers.get(answers.size()-1)); answers.get(answers.size()-2).removeKeyListener(this); answerPanel.revalidate(); } answers.get(answers.size()-1).addKeyListener(this); } private void removeAnswer(int i) { answers.remove(i); answerPanel.remove(i); answerPanel.revalidate(); } @Override public void keyTyped(KeyEvent e) { // TODO Auto-generated method stub } @Override public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub fixAnswers(); } @Override public void keyReleased(KeyEvent e) { // TODO Auto-generated method stub } } Thank you in advance for any help.

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  • database change after pressing 'X' button

    - by Anup Prakash
    What i know:- We can use Ajax to change database from javascript. So whenever we press the 'X' button on title bar it calls "onbeforeunload" event. And by this event we can change the database. But in my case, i want to change the status of user only when user click on 'X' button. Not in case of changing the page. As because changing the page is unloading the page. and closing the page is also unloading the page(As much i know). Is there any way to differentiate between closing the page and moving from one page to other page? I want to use it for changing the status of user(i.e. login/logout), whenever he presses cross button. I don't want to set status "logout" when user changes the page. I want to set status "logout" when user 'X' the button. Plese help me.

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  • How to make a cell of TAdvStringGrid editable?

    - by ammu
    I am trying to implement a filter using the component TAdvStringGrid. My requirement is that I want the first row of this component to be editable when double clicked, so that the user can filter data. Borland C++ Builder is used to help achieve this task. I found this event OnCanEditCell. TCanEditCellEvent = procedure (Sender:TObject;Arow,Acol:longint;var canedit:boolean) of object; Within this function I've set canedit = true. This doesn't seem to work. Probably I need to do something more. I am new to Windows and GUI development. So any help would be great. Do I need to call this function from the OnDblClickCell event? How can I get it working? Thanks in advance

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