Examples of org.eclipse.swt.events.KeyListener

org.eclipse.swt.events.KeyListener
Classes which implement this interface provide methods that deal with the events that are generated as keys are pressed on the system keyboard.
After creating an instance of a class that implements this interface it can be added to a control using the addKeyListener method and removed using the removeKeyListener method. When a key is pressed or released, the appropriate method will be invoked.
@see KeyAdapter @see KeyEvent

      }
    });


    // Hook up the return key in the location bar.
    //
    location.addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent e) {
        if (e.character == '\r') {
          go(location.getText());
        }
      }

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    makeActions();
    hookContextMenu();
    hookViewerEvents();
    
    fViewer.getControl().addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent event) {
        if ((event.stateMask & SWT.CTRL) != 0) {
                switch (event.keyCode) {
                  case '+' :
                    if(expandAction.isEnabled()) {

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    private boolean mIsActive;


    private AnnotationFS mCandidate;


    FeatureStructureDragListener(final StyledText textWidget) {
      textWidget.addKeyListener(new KeyListener() {
        public void keyPressed(KeyEvent e) {
          if (e.keyCode == SWT.ALT) {
            mIsActive = true;


            textWidget.setCursor(Display.getCurrent().getSystemCursor(SWT.CURSOR_HAND));

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    //
    // Until this can be used we improvise by registering a couple of listeners which
    // compute a caret offset change based on events which could change it, 
    // that are key and mouse listeners.
    
    getSourceViewer().getTextWidget().addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent e) {
        int newCaretOffset = getSourceViewer().getTextWidget().getCaretOffset();


        if (newCaretOffset != mCursorPosition) {
          mCursorPosition = newCaretOffset;

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    // especially on a Mac
    FontData [] fontData = cc.getFont().getFontData();
    ((GridData) cc.getLayoutData()).heightHint = 2 * fontData[0].getHeight();
    cc.addListener(SWT.Selection, this);
    cc.setToolTipText(tip);
    cc.addKeyListener(new KeyListener() {
      private final StringBuffer b = new StringBuffer();


      public void keyPressed(KeyEvent e) {
      }

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        if (validator != null)
          validator.validate(newEditor.getText());
        evt.doit = true;
      }
    });
    newEditor.addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent arg0) {
        // nothing to do
      }


      public void keyReleased(KeyEvent evt) {

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        if (validator != null)
          validator.validate(newEditor.getText());
        evt.doit = true;
      }
    });
    newEditor.addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent arg0) {
        // nothing to do
      }


      public void keyReleased(KeyEvent evt) {

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        if (validator != null)
          validator.validate(newEditor.getText());
        evt.doit = true;
      }
    });
    newEditor.addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent arg0) {
        // nothing to do
      }


      public void keyReleased(KeyEvent evt) {

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        if (validator != null)
          validator.validate(newEditor.getText());
        evt.doit = true;
      }
    });
    newEditor.addKeyListener(new KeyListener() {
      public void keyPressed(KeyEvent arg0) {
        // nothing to do
      }


      public void keyReleased(KeyEvent evt) {

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    gd = new GridData(SWT.FILL, SWT.TOP, true, false);
    gd.horizontalIndent = 5;
    pathField.setLayoutData(gd);


    prefixField.addKeyListener(new KeyListener(){


      public void keyPressed(KeyEvent e) {
        markDirty();
      }

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