下面列出了org.eclipse.core.runtime.ListenerList#org.eclipse.swt.events.TraverseEvent 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private Control createHeader(Composite parent, Font font, String message) {
Composite header= new Composite(parent, SWT.NONE);
GridLayout layout= new GridLayout();
layout.numColumns= 2;
layout.marginWidth= 0; layout.marginHeight= 0;
header.setLayout(layout);
header.setFont(font);
Label label= new Label(header, SWT.NONE);
label.setText(message);
label.setFont(font);
label.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_MNEMONIC && e.doit) {
e.detail= SWT.TRAVERSE_NONE;
fFilter.setFocus();
}
}
});
GridData gd= new GridData(GridData.FILL_HORIZONTAL);
label.setLayoutData(gd);
createViewMenu(header);
return header;
}
@Override
protected Text createTextControl(Composite parent) {
Text text= new Text(parent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
text.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent event) {
switch (event.detail) {
case SWT.TRAVERSE_ESCAPE:
case SWT.TRAVERSE_PAGE_NEXT:
case SWT.TRAVERSE_PAGE_PREVIOUS:
event.doit= true;
break;
case SWT.TRAVERSE_RETURN:
case SWT.TRAVERSE_TAB_NEXT:
case SWT.TRAVERSE_TAB_PREVIOUS:
if ((event.stateMask & SWT.MODIFIER_MASK) != 0) {
event.doit= true;
}
break;
}
}
});
return text;
}
private TraverseListener getTraverseListener( )
{
return new TraverseListener( ) {
/**
* @see org.eclipse.swt.events.TraverseListener#keyTraversed(TraverseEvent)
*/
public void keyTraversed( TraverseEvent e )
{
if ( e.widget instanceof StyledText )
{
if ( ( e.detail == SWT.TRAVERSE_TAB_NEXT )
|| ( e.detail == SWT.TRAVERSE_TAB_PREVIOUS ) )
e.doit = true;
}
}
};
}
public void keyTraversed(TraverseEvent e) {
switch (e.detail) {
case SWT.TRAVERSE_MNEMONIC:
if ((e.stateMask & SWT.MOD3) != 0) {
switch (e.character) {
case PREV:
case NEXT:
// if no key binding (which would take precedence)
// then pass to our handlers it directly
if (!hasBinding(e)){
handleTraverseEvent(e);
}
}
}
break;
default:
}
}
/**
* Disable eclipse traversal event, and dispatch into our Alt/Ctrl
* handlers in place of it
*
* @param e the trapped TraverseEvent
*/
protected void handleTraverseEvent(TraverseEvent e) {
// setting detail to NONE but doit=true disables further processing
e.detail = SWT.TRAVERSE_NONE;
e.doit = true;
Event ee = new Event();
ee.character = e.character;
ee.doit = true;
ee.stateMask = (e.stateMask & SWT.MODIFIER_MASK);
ee.keyCode = e.keyCode;
ee.display = e.display;
ee.widget = e.widget; // will throw an exception if not valid
ee.time = e.time;
ee.data = e.data;
switch (ee.stateMask) {
case SWT.CONTROL: // Emacs+ key binding forces CTRL
dispatchCtrl(new VerifyEvent(ee));
break;
case SWT.ALT: // AFAIK MOD3 is always ALT
dispatchAlt(new VerifyEvent(ee));
break;
}
}
/**
* On mnemonic handler
*
* @param event
*/
void onMnemonic(TraverseEvent event) {
char mnemonic = _findMnemonic(text);
if (mnemonic == '\0') return;
if (Character.toLowerCase(event.character) != mnemonic) return;
Composite control = this.getParent();
while (control != null) {
Control[] children = control.getChildren();
int index = 0;
while (index < children.length) {
if (children[index] == this) break;
index++;
}
index++;
if (index < children.length) {
if (children[index].setFocus()) {
event.doit = true;
event.detail = SWT.TRAVERSE_NONE;
}
}
control = control.getParent();
}
}
/**
* Handle the keyTraversed event on any child control in the table.
*
* @param sender
* The row sending the event.
* @param e
* The SWT TraverseEvent
*/
public void keyTraversed(TableRow sender, TraverseEvent e) {
if (doMakeFocusedRowVisible()) return;
if (parent.isTraverseOnTabsEnabled()) {
if (e.detail == SWT.TRAVERSE_TAB_NEXT) {
if (currentColumn >= sender.getNumColumns() - 1) {
e.detail = SWT.TRAVERSE_NONE;
handleNextRowNavigation();
}
} else if (e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
if (currentColumn == 0) {
e.detail = SWT.TRAVERSE_NONE;
handlePreviousRowNavigation(sender);
}
} else if (e.detail == SWT.TRAVERSE_RETURN) {
e.detail = SWT.TRAVERSE_NONE;
if (currentColumn >= sender.getNumColumns() - 1) {
handleNextRowNavigation();
} else {
deferredSetFocus(getControl(currentColumn + 1, currentRow),
false);
}
}
} else {
if (e.detail == SWT.TRAVERSE_TAB_NEXT) {
if (currentColumn >= sender.getNumColumns() - 1) {
e.detail = SWT.TRAVERSE_NONE;
}
} else if (e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
if (currentColumn == 0) {
e.detail = SWT.TRAVERSE_NONE;
}
}
}
}
public void keyTraversed(TraverseEvent e) {
/*
* FEATURE IN SWT: When SWT needs to resolve a mnemonic (accelerator)
* character, it recursively calls the traverse event down all
* controls in the containership hierarchy. If e.doit is false,
* no control has yet matched the mnemonic, and we don't have to
* do anything since we don't do mnemonic matching and no mnemonic
* has matched.
*/
if (e.doit) {
parent.keyTraversed(TableRow.this, e);
}
}
protected void createButtonsForButtonBar( Composite parent){
Button ok = createButton(parent, IDialogConstants.OK_ID, "Import Packet", true);
createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
ok.addMouseListener(okListener);
ok.addTraverseListener(new TraverseListener() {
public void keyTraversed( TraverseEvent e){
if (SWT.TRAVERSE_RETURN == e.detail) {
}
}
});
}
protected void createButtonsForButtonBar( Composite parent){
Button ok = createButton(parent, IDialogConstants.OK_ID, "Close", true);
// createButton(parent, IDialogConstants.CANCEL_ID,
// IDialogConstants.CANCEL_LABEL, false);
ok.addMouseListener(okListener);
ok.addTraverseListener(new TraverseListener() {
public void keyTraversed( TraverseEvent e){
if (SWT.TRAVERSE_RETURN == e.detail) {
}
}
});
}
public static void disableTabTraversal(Control c){
c.addTraverseListener(new TraverseListener () {
public void keyTraversed(TraverseEvent e) {
switch (e.detail) {
case SWT.TRAVERSE_TAB_NEXT:
case SWT.TRAVERSE_TAB_PREVIOUS: {
e.doit = false;
}
}
}
});
}
public static void disableTabTraversal(Control c) {
c.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
switch (e.detail) {
case SWT.TRAVERSE_TAB_NEXT:
case SWT.TRAVERSE_TAB_PREVIOUS: {
e.doit = false;
}
}
}
});
}
public static void addTraverseListener(final Text textArea) {
textArea.addTraverseListener(new TraverseListener() {
@Override
public void keyTraversed(final TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
e.doit = true;
}
}
});
}
/**
* Create a new header which is labelled by headerLabel.
*
* @param parent
* @return Label the label of the header
*/
private Label createHeader(Composite parent) {
Composite header = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.numColumns = 2;
layout.marginWidth = 0;
layout.marginHeight = 0;
header.setLayout(layout);
Label headerLabel = new Label(header, SWT.NONE);
headerLabel.setText((getMessage() != null && getMessage().trim()
.length() > 0) ? getMessage()
: WorkbenchMessages.FilteredItemsSelectionDialog_patternLabel);
headerLabel.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_MNEMONIC && e.doit) {
e.detail = SWT.TRAVERSE_NONE;
pattern.setFocus();
}
}
});
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
headerLabel.setLayoutData(gd);
createViewMenu(header);
header.setLayoutData(gd);
return headerLabel;
}
/**
* Create the labels for the list and the progress. Return the list label.
*
* @param parent
* @return Label
*/
private Label createLabels(Composite parent) {
Composite labels = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.numColumns = 2;
layout.marginWidth = 0;
layout.marginHeight = 0;
labels.setLayout(layout);
Label listLabel = new Label(labels, SWT.NONE);
listLabel
.setText(WorkbenchMessages.FilteredItemsSelectionDialog_listLabel);
listLabel.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_MNEMONIC && e.doit) {
e.detail = SWT.TRAVERSE_NONE;
list.getTable().setFocus();
}
}
});
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
listLabel.setLayoutData(gd);
progressLabel = new Label(labels, SWT.RIGHT);
progressLabel.setLayoutData(gd);
labels.setLayoutData(gd);
return listLabel;
}
/**
* Creates a multi-line textbox.
*
* @param parent a composite control which will be the parent of the new
* instance (cannot be null)
* @param style the style of control to construct
* @param allowTabs set to <code>true</code> to allow \t characters to be
* inserted.
* @return the new textbox
*/
public static Text createMultilineTextbox(Composite parent, int style, final boolean allowTabs) {
Text text = new Text(parent, style | SWT.MULTI);
text.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
switch (e.detail) {
case SWT.TRAVERSE_TAB_NEXT:
e.doit = !allowTabs;
}
}
});
return text;
}
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_RETURN && (e.stateMask & SWT.SHIFT) != 0) {
e.doit = false;
return;
}
if (e.detail == SWT.TRAVERSE_RETURN && (e.stateMask & SWT.CTRL) != 0) {
e.doit = false;
firePropertyChangeChange(OK_REQUESTED, null, null);
}
}
public static void addTraverseListener(final Text textArea) {
textArea.addTraverseListener(new TraverseListener() {
@Override
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
e.doit = true;
}
}
});
}
private void createSREArgsText(Group group, Font font) {
this.sreArgumentsText = new Text(group, SWT.MULTI | SWT.WRAP | SWT.BORDER | SWT.V_SCROLL);
this.sreArgumentsText.addTraverseListener(new TraverseListener() {
@Override
public void keyTraversed(TraverseEvent event) {
switch (event.detail) {
case SWT.TRAVERSE_ESCAPE:
case SWT.TRAVERSE_PAGE_NEXT:
case SWT.TRAVERSE_PAGE_PREVIOUS:
event.doit = true;
break;
case SWT.TRAVERSE_RETURN:
case SWT.TRAVERSE_TAB_NEXT:
case SWT.TRAVERSE_TAB_PREVIOUS:
if ((SARLArgumentsTab.this.sreArgumentsText.getStyle() & SWT.SINGLE) != 0) {
event.doit = true;
} else {
if (!SARLArgumentsTab.this.sreArgumentsText.isEnabled() || (event.stateMask & SWT.MODIFIER_MASK) != 0) {
event.doit = true;
}
}
break;
default:
}
}
});
final GridData gd = new GridData(GridData.FILL_BOTH);
gd.heightHint = HEIGHT_HINT;
gd.widthHint = WIDTH_HINT;
this.sreArgumentsText.setLayoutData(gd);
this.sreArgumentsText.setFont(font);
this.sreArgumentsText.addModifyListener(new ModifyListener() {
@SuppressWarnings("synthetic-access")
@Override
public void modifyText(ModifyEvent evt) {
scheduleUpdateJob();
}
});
ControlAccessibleListener.addListener(this.sreArgumentsText, group.getText());
}
public void keyTraversed( TraverseEvent e )
{
if ( e.character != SWT.TAB )
{
e.doit = false;
}
}
void onMnemonic( TraverseEvent event )
{
char mnemonic = _findMnemonic( text );
if ( mnemonic == '\0' )
return;
if ( Character.toLowerCase( event.character ) != mnemonic )
return;
Composite control = this.getParent( );
while ( control != null )
{
Control[] children = control.getChildren( );
int index = 0;
while ( index < children.length )
{
if ( children[index] == this )
break;
index++;
}
index++;
if ( index < children.length )
{
if ( children[index].setFocus( ) )
{
event.doit = true;
event.detail = SWT.TRAVERSE_NONE;
}
}
control = control.getParent( );
}
}
/**
* Enable tab completion by disabling tab traversal
*
* @see com.mulgasoft.emacsplus.minibuffer.HistoryMinibuffer#keyTraversed(org.eclipse.swt.events.TraverseEvent)
*/
public void keyTraversed(TraverseEvent e) {
switch (e.detail) {
case SWT.TRAVERSE_TAB_NEXT:
// ignore tab traversal
e.doit = false;
break;
default:
super.keyTraversed(e);
}
}
private Text createTextCell(Composite composite, int heightFactor, int widthFactor) {
Text text = toolkit.createText(composite, null, SWT.BORDER | SWT.MULTI | SWT.WRAP);
text.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
e.doit = true;
}
}
});
setGridData(text, heightFactor, widthFactor);
return text;
}
public static void addTraverseListener(final Text textArea) {
textArea.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_TAB_NEXT
|| e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
e.doit = true;
}
}
});
}
private void editButton( TableItem row, int rownr, int colnr ) {
beforeEdit = getItemText( row );
fieldChanged = false;
ColumnInfo colinfo = columns[ colnr - 1 ];
if ( colinfo.isReadOnly() ) {
return;
}
if ( colinfo.getDisabledListener() != null ) {
boolean disabled = colinfo.getDisabledListener().isFieldDisabled( rownr );
if ( disabled ) {
return;
}
}
button = new Button( table, SWT.PUSH );
props.setLook( button, Props.WIDGET_STYLE_TABLE );
String buttonText = columns[ colnr - 1 ].getButtonText();
if ( buttonText != null ) {
button.setText( buttonText );
}
button.setImage( GuiResource.getInstance().getImage( "ui/images/edittext.svg" ) );
SelectionListener selAdpt = colinfo.getSelectionAdapter();
if ( selAdpt != null ) {
button.addSelectionListener( selAdpt );
}
buttonRownr = rownr;
buttonColnr = colnr;
// button.addTraverseListener(lsTraverse);
buttonContent = row.getText( colnr );
String tooltip = columns[ colnr - 1 ].getToolTip();
if ( tooltip != null ) {
button.setToolTipText( tooltip );
} else {
button.setToolTipText( "" );
}
button.addTraverseListener( lsTraverse ); // hop to next field
button.addTraverseListener( new TraverseListener() {
@Override
public void keyTraversed( TraverseEvent arg0 ) {
closeActiveButton();
}
} );
editor.horizontalAlignment = SWT.LEFT;
editor.verticalAlignment = SWT.TOP;
editor.grabHorizontal = false;
editor.grabVertical = false;
Point size = button.computeSize( SWT.DEFAULT, SWT.DEFAULT );
editor.minimumWidth = size.x;
editor.minimumHeight = size.y - 2;
// setRowNums();
editor.layout();
// Open the text editor in the correct column of the selected row.
editor.setEditor( button );
button.setFocus();
// if the button loses focus, destroy it...
/*
* button.addFocusListener(new FocusAdapter() { public void focusLost(FocusEvent e) { button.dispose(); } } );
*/
}
public void keyTraversed(TraverseEvent e) {
// NOOP: this just lets us receive focus from SWT
}
public void keyTraversed(TraverseEvent e) {
}
public void keyTraversed(TraverseEvent e) {
// NOOP: this just lets us receive focus from SWT
}
public void keyTraversed(TraverseEvent e) {
// NOOP: this just lets us receive focus from SWT
}
@Override
public void keyTraversed(TraverseEvent e) {
if ((e.detail == SWT.TRAVERSE_TAB_NEXT) || (e.detail == SWT.TRAVERSE_TAB_PREVIOUS)) {
e.doit = true;
}
}