下面列出了怎么用org.eclipse.jface.dialogs.IMessageProvider的API类实例代码及写法，或者点击链接到github查看源代码。
/**
* Applies the status to the status line of a dialog page.
*/
private void applyToStatusLine( IStatus status )
{
String message = status.getMessage( );
if ( message.length( ) == 0 )
message = PAGE_DESC;
switch ( status.getSeverity( ) )
{
case IStatus.OK :
setErrorMessage( null );
setMessage( message );
break;
case IStatus.ERROR :
setErrorMessage( message );
setMessage( message, IMessageProvider.ERROR );
break;
default :
setErrorMessage( message );
setMessage( null );
break;
}
}
public static void applyToStatusLine(DialogPage page, IStatus status) {
String message = status.getMessage();
switch (status.getSeverity()) {
case IStatus.OK:
page.setMessage(message, IMessageProvider.NONE);
page.setErrorMessage(null);
break;
case IStatus.WARNING:
page.setMessage(message, IMessageProvider.WARNING);
page.setErrorMessage(null);
break;
case IStatus.INFO:
page.setMessage(message, IMessageProvider.INFORMATION);
page.setErrorMessage(null);
break;
default:
if (message.isEmpty()) {
message = null;
}
page.setMessage(null);
page.setErrorMessage(message);
break;
}
}
/** copied from PropertyAndPreferencePage */
private static void applyToStatusLine(DialogPage page, IStatus status) {
String message = status.getMessage();
if (message != null && message.length() == 0) {
message = null;
}
switch (status.getSeverity()) {
case IStatus.OK:
page.setMessage(message, IMessageProvider.NONE);
page.setErrorMessage(null);
break;
case IStatus.WARNING:
page.setMessage(message, IMessageProvider.WARNING);
page.setErrorMessage(null);
break;
case IStatus.INFO:
page.setMessage(message, IMessageProvider.INFORMATION);
page.setErrorMessage(null);
break;
default:
page.setMessage(null);
page.setErrorMessage(message);
break;
}
}
private void update ()
{
final Button button = getButton ( OK );
try
{
setMessage ( Messages.LoginDialog_DefaultMessage, IMessageProvider.INFORMATION );
validate ();
button.setEnabled ( true );
}
catch ( final Exception e )
{
button.setEnabled ( false );
setMessage ( e.getMessage (), IMessageProvider.ERROR );
}
}
/**
* This operation changes the dirty state of the FormEditor.
*
* @param value
*/
public void setDirty(boolean value) {
// Set the dirty value and fire a property change
dirty = value;
firePropertyChange(PROP_DIRTY);
// Push a message to the message manager
if (getHeaderForm() != null) {
final IMessageManager messageManager = getHeaderForm()
.getMessageManager();
if (dirty) {
messageManager.addMessage("statusUpdate",
"There are unsaved changes on the form.", null,
IMessageProvider.WARNING);
} else {
messageManager.removeMessage("statusUpdate");
// messageManager.addMessage("statusUpdate", "Form Saved", null,
// IMessageProvider.INFORMATION);
}
}
}
/**
* Applies the status to the status line of a dialog page.
*/
private static void applyToStatusLine(DialogPage page, IStatus status) {
String message = Status.OK_STATUS.equals(status) ? null : status.getMessage();
switch (status.getSeverity()) {
case IStatus.OK:
page.setMessage(message, IMessageProvider.NONE);
page.setErrorMessage(null);
break;
case IStatus.WARNING:
page.setMessage(message, IMessageProvider.WARNING);
page.setErrorMessage(null);
break;
case IStatus.INFO:
page.setMessage(message, IMessageProvider.INFORMATION);
page.setErrorMessage(null);
break;
default:
if (message != null && message.length() == 0) {
message = null;
}
page.setMessage(null);
page.setErrorMessage(message);
break;
}
}
@Override
public void createControl(Composite parent) {
final Composite container = new Composite(parent, parent.getStyle());
setControl(container);
container.setLayout(new GridLayout(1, false));
final TabFolder tabFolder = new TabFolder(container, SWT.BORDER);
tabFolder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
final CheckboxTableViewer tokenViewer = addTokenTabItem(tabFolder, registry, properties);
addNSURITabItem(tabFolder, tokenViewer, properties);
addServicesTabItem(tabFolder, tokenViewer, properties);
if (!M2DocUtils.VERSION.equals(properties.getM2DocVersion())) {
setMessage("M2Doc version mismatch: template version is " + properties.getM2DocVersion()
+ " and current M2Doc version is " + M2DocUtils.VERSION, IMessageProvider.WARNING);
} else {
setMessage("Select services and packages");
}
}
@Override
public IStatus getStatus() {
// DialogPage has an unfortunately complex set of message possibilities
String message = messages.getErrorMessage();
if (message != null) {
return new Status(IStatus.ERROR, PLUGIN_ID, message);
}
int messageType = messages.getMessageType();
switch (messageType) {
case IMessageProvider.INFORMATION:
return new Status(IStatus.INFO, PLUGIN_ID, messages.getMessage());
case IMessageProvider.WARNING:
return new Status(IStatus.WARNING, PLUGIN_ID, messages.getMessage());
case IMessageProvider.ERROR:
return new Status(IStatus.ERROR, PLUGIN_ID, messages.getMessage());
default:
return Status.OK_STATUS;
}
}
protected AlwStartPage() {
super("");
setTitle("Application Layout"); // $NLX-AlwStartPage.ApplicationLayout-1$
setMessage("Choose the configuration for this control.", IMessageProvider.INFORMATION); // $NLX-AlwStartPage.Choosetheconfigurationforthiscont-1$
// Setup the title font
_titleFont = JFaceResources.getBannerFont();
// Setup hand cursor
_handCursor = new Cursor(Display.getCurrent(), SWT.CURSOR_HAND);
// Load images - Do not have to be disposed later - plugin maintains a list
_defImage = ExtLibToolingPlugin.getImage("app_layout.jpg"); // $NON-NLS-1$
if (_showResponsiveIcon) {
_responsiveImage = NavigatorPlugin.getImage("navigatorIcons/navigatorChild.png"); // $NON-NLS-1$
} else {
_responsiveImage = null;
}
// Setup hyperlink color
_hyperlinkColor = new Color(Display.getCurrent(), 0, 0, 255);
}
/**
* Convenience method to set a validation message on {@link DialogPage} from the result of calling
* {@link #validateMavenSettings()}.
*
* @return {@code true} if no validation message was set; {@code false} otherwise
*
* @see #validateMavenSettings()
*/
public boolean setValidationMessage(DialogPage page) {
IStatus status = validateMavenSettings();
if (status.isOK()) {
return true;
}
if (IStatus.ERROR == status.getSeverity()) {
page.setErrorMessage(status.getMessage());
} else if (IStatus.WARNING == status.getSeverity()) {
page.setMessage(status.getMessage(), IMessageProvider.WARNING);
} else if (IStatus.INFO == status.getSeverity()) {
page.setMessage(status.getMessage(), IMessageProvider.INFORMATION);
}
return false;
}
private boolean validateSingleColumn( ComputedColumn computedColumn )
{
if ( computedColumn.getName( ) == null
|| computedColumn.getName( ).trim( ).length( ) == 0 )
{
getContainer( ).setMessage( Messages.getFormattedString( "dataset.editor.error.missingComputedColumnName", new Object[]{computedColumn.getName( )} ), IMessageProvider.ERROR ); //$NON-NLS-1$
return false;
}
Iterator iter = ( (DataSetHandle) getContainer( ).getModel( ) ).getPropertyHandle( DataSetHandle.COLUMN_HINTS_PROP )
.iterator( );
while ( iter.hasNext( ) )
{
ColumnHintHandle hint = (ColumnHintHandle) iter.next( );
if ( !computedColumn.getName( ).equals( hint.getColumnName( ) )
&& computedColumn.getName( ).equals( hint.getAlias( ) ) )
{
getContainer( ).setMessage( Messages.getFormattedString( "dataset.editor.error.computedColumnNameAlreadyUsed", new Object[]{computedColumn.getName( )} ), IMessageProvider.ERROR ); //$NON-NLS-1$
return false;
}
}
return true;
}
/**
* Applies the status to the status line of a dialog page.
*
* @param page the dialog page
* @param status the status
*/
public void applyToStatusLine(DialogPage page, IStatus status) {
String message = status.getMessage();
switch (status.getSeverity()) {
case IStatus.OK:
page.setMessage(message, IMessageProvider.NONE);
page.setErrorMessage(null);
break;
case IStatus.WARNING:
page.setMessage(message, IMessageProvider.WARNING);
page.setErrorMessage(null);
break;
case IStatus.INFO:
page.setMessage(message, IMessageProvider.INFORMATION);
page.setErrorMessage(null);
break;
default:
if (message.length() == 0) {
message = null;
}
page.setMessage(null);
page.setErrorMessage(message);
break;
}
}
@Test
public void testStatusSeverityWarn() {
// add three areas, status = OK, WARN, INFO; verify showing WARN
setupAreas();
area3.status = new Status(IStatus.INFO, "foo", "info3");
area3.fireValueChanged(TestPrefArea.IS_VALID, true, false);
assertTrue("should still be valid", page.isValid());
assertEquals(IMessageProvider.INFORMATION, page.getMessageType());
assertEquals("info3", page.getMessage());
area2.status = new Status(IStatus.WARNING, "foo", "warn2");
area2.fireValueChanged(TestPrefArea.IS_VALID, true, false);
assertTrue("should still be valid", page.isValid());
assertEquals(IMessageProvider.WARNING, page.getMessageType());
assertEquals("warn2", page.getMessage());
}
public Procedure0 addStatus(int severity, String text) {
Procedure0 status = null;
if (link.getText().trim().isEmpty()) {
status = setStatus(severity, text, () -> {}, () -> {});
} else {
link.setText(link.getText() + "\n" + text);
Matcher matcher = ANCHOR_PATTERN.matcher(text.trim());
link.setToolTipText(matcher.replaceAll("$1"));
if (severity > this.severity) {
this.severity = severity;
setVisible(severity != IMessageProvider.NONE);
imageLabel.setImage(imageFor(severity));
}
}
return status;
}
protected void updateComputedColumn( Object structureOrHandle )
{
if ( structureOrHandle instanceof ComputedColumn )
{
try
{
computedColumns.addItem( (ComputedColumn) structureOrHandle );
viewer.getViewer( ).refresh( );
}
catch ( SemanticException e )
{
ExceptionHandler.handle( e );
}
}
else
{
viewer.getViewer( ).update( structureOrHandle, null );
}
if ( validateAllComputedColumns( ) )
getContainer( ).setMessage( Messages.getString( "dataset.editor.computedColumns" ), //$NON-NLS-1$
IMessageProvider.NONE );
}
@Override
public void setStatus(IStatus status) {
if (status == null || status.getSeverity() == IStatus.OK) {
setErrorMessage(null);
setMessage(null);
setPageComplete(true);
} else if (status.getSeverity() == IStatus.ERROR) {
setErrorMessage(status.getMessage());
setPageComplete(false);
} else if (status.getSeverity() == IStatus.WARNING) {
setErrorMessage(null);
setMessage(status.getMessage(), IMessageProvider.WARNING);
setPageComplete(true);
} else {
setErrorMessage(null);
setMessage(status.getMessage(), IMessageProvider.INFORMATION);
setPageComplete(true);
}
}
private static void applyToStatusLine(DialogPage page, IStatus status) {
String message = status.getMessage();
if (message != null && message.length() == 0) {
message = null;
}
switch (status.getSeverity()) {
case IStatus.OK:
page.setMessage(message, IMessageProvider.NONE);
page.setErrorMessage(null);
break;
case IStatus.WARNING:
page.setMessage(message, IMessageProvider.WARNING);
page.setErrorMessage(null);
break;
case IStatus.INFO:
page.setMessage(message, IMessageProvider.INFORMATION);
page.setErrorMessage(null);
break;
default:
page.setMessage(null);
page.setErrorMessage(message);
break;
}
}
/**
* Tries to find a CodeChecker package.
*/
public void locateCodeChecker() {
CodeCheckerLocatorService serv = null;
switch (currentResMethod) {
case PATH:
serv = new EnvCodeCheckerLocatorService();
break;
case PRE:
serv = new PreBuiltCodeCheckerLocatorService();
break;
default:
break;
}
ICodeChecker cc = null;
try {
cc = serv.findCodeChecker(Paths.get(codeCheckerDirectoryField.getText()),
new CodeCheckerFactory(), new ShellExecutorHelperFactory());
form.setMessage(VALID_PACKAGE + cc.getLocation().toString(), IMessageProvider.INFORMATION);
if (globalGui || (!globalGui && !useGlobalSettings))
recursiveSetEnabled(checkerConfigSection, true);
} catch (InvalidCodeCheckerException | IllegalArgumentException | ArrayIndexOutOfBoundsException e) {
recursiveSetEnabled(checkerConfigSection, false);
form.setMessage(e.getMessage(), IMessageProvider.ERROR);
}
this.codeChecker = cc;
}
private void updateMessage(int pageIndex) {
ISymbolProviderPreferencePage currentPage = fPreferencePages[pageIndex];
String message = currentPage.getMessage();
String errorMessage = currentPage.getErrorMessage();
int messageType = IMessageProvider.NONE;
if (errorMessage != null) {
message = errorMessage;
messageType = IMessageProvider.ERROR;
}
setMessage(message, messageType);
if (fPreferencePages.length > 1) {
// update the corresponding tab icon
if (messageType == IMessageProvider.ERROR) {
fPageTabs[pageIndex].setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJS_ERROR_TSK));
} else {
fPageTabs[pageIndex].setImage(null);
}
}
}
@SuppressWarnings("incomplete-switch")
private void updateStatusMessage( ValidationStatus validationStatus ) {
if( visible ) {
int messageType = IMessageProvider.NONE;
String message = null;
switch( validationStatus.getSeverity() ) {
case ERROR:
messageType = IMessageProvider.ERROR;
message = validationStatus.getMessage();
break;
case WARNING:
messageType = IMessageProvider.WARNING;
message = validationStatus.getMessage();
break;
}
setMessage( message, messageType );
setPageComplete( validationStatus.getSeverity() != Severity.ERROR );
}
}
protected void doEdit( )
{
int index = viewer.getViewer( ).getTable( ).getSelectionIndex( );
if ( index >= 0 && index < viewer.getViewer( ).getTable( ).getItemCount( ) )
{
ColumnDefn currentColumn = (ColumnDefn) viewer.getViewer( ).getTable( )
.getItem( index )
.getData( );
String oldName = currentColumn.getColumnName( );
ColumnInputDialog inputDialog = new ColumnInputDialog( viewer.getControl( ).getShell( ),
Messages.getString( "ResultSetColumnPage.inputDialog.editColumn.title" ), //$NON-NLS-1$
currentColumn );
if ( inputDialog.open( ) == Window.OK )
{
updateColumnDefMap( oldName, inputDialog.getColumnDefn( ) );
viewer.getViewer( ).refresh( );
updateMessage( );
}
}
else
{
getContainer( ).setMessage( Messages.getString( "OutputColumnPage.error.invalidSelection" ), IMessageProvider.ERROR ); //$NON-NLS-1$
}
updateButtons( );
}
@Override
protected void addUserInputPages() {
String message= null;
int messageType= IMessageProvider.NONE;
if(!getExtractConstantRefactoring().selectionAllStaticFinal()) {
message= RefactoringMessages.ExtractConstantInputPage_selection_refers_to_nonfinal_fields;
messageType= IMessageProvider.INFORMATION;
} else {
message= MESSAGE;
messageType= IMessageProvider.NONE;
}
String[] guessedNames= getExtractConstantRefactoring().guessConstantNames();
String initialValue= guessedNames.length == 0 ? "" : guessedNames[0]; //$NON-NLS-1$
addPage(new ExtractConstantInputPage(message, messageType, initialValue, guessedNames));
}
/**
* Applies the status to the status line of a dialog page.
*/
private void applyToStatusLine( IStatus status )
{
String message = status.getMessage( );
if ( message.length( ) == 0 )
message = PAGE_DESC;
switch ( status.getSeverity( ) )
{
case IStatus.OK :
setErrorMessage( null );
setMessage( message );
break;
case IStatus.ERROR :
setErrorMessage( message );
setMessage( message, IMessageProvider.ERROR );
break;
default :
setErrorMessage( message );
setMessage( null );
break;
}
}
/** Update the page status and change the "finish" state button.
*/
protected void updatePageStatus() {
final boolean ok;
if (Strings.isEmpty(this.titleField.getText())) {
ok = false;
setMessage(Messages.IssueInformationPage_5, IMessageProvider.ERROR);
} else if (Strings.isEmpty(this.trackerLogin.getText())) {
ok = false;
setMessage(Messages.IssueInformationPage_6, IMessageProvider.ERROR);
} else if (Strings.isEmpty(this.trackerPassword.getText())) {
ok = false;
setMessage(Messages.IssueInformationPage_7, IMessageProvider.ERROR);
} else {
ok = true;
if (Strings.isEmpty(this.descriptionField.getText())) {
setMessage(Messages.IssueInformationPage_8, IMessageProvider.WARNING);
} else {
setMessage(null, IMessageProvider.NONE);
}
}
setPageComplete(ok);
}
/**
* Updates the status message on the page, based on the status of the SRE and other
* status provided by the page.
*/
protected void updatePageStatus() {
if (this.status.isOK()) {
setMessage(null, IMessageProvider.NONE);
} else {
switch (this.status.getSeverity()) {
case IStatus.ERROR:
setMessage(this.status.getMessage(), IMessageProvider.ERROR);
break;
case IStatus.INFO:
setMessage(this.status.getMessage(), IMessageProvider.INFORMATION);
break;
case IStatus.WARNING:
setMessage(this.status.getMessage(), IMessageProvider.WARNING);
break;
default:
break;
}
}
setPageComplete(this.status.isOK() || this.status.getSeverity() == IStatus.INFO);
}
public void updateMessage() {
if (currentPage == null) {
return;
}
pageMessage = currentPage.getMessage();
if (pageMessage != null && currentPage instanceof IMessageProvider) {
pageMessageType = ((IMessageProvider) currentPage).getMessageType();
} else {
pageMessageType = IMessageProvider.NONE;
}
if (pageMessage == null) {
setMessage(pageDescription);
} else {
setMessage(pageMessage, pageMessageType);
}
setErrorMessage(currentPage.getErrorMessage());
}
/**
* This operation will post a message to the message manager (if one exists)
* if the Entry has no value, but requires a value from a discrete set.
*/
private void throwMissingValuesError() {
if (messageManager != null) {
// Get the message
String errorMessage = "There are no allowed values, can't create DiscreteEntryComposite.";// entry.getErrorMessage();
// Post it if it exists
if (errorMessage != null) {
// Display the error at the top of the screen
if (messageManager != null) {
messageManager.addMessage(messageName, errorMessage, null, IMessageProvider.ERROR);
}
// Highlight the text if it is in a text box
if (widget != null) {
Color color = new Color(Display.getCurrent(), 200, 0, 0);
widget.setForeground(color);
FontData fontData = new FontData();
fontData.setStyle(SWT.BOLD);
Font font = new Font(getDisplay(), fontData);
widget.setFont(font);
}
}
}
return;
}
/**
* Applies the status to the status line of a dialog page.
*/
public static void applyToStatusLine(DialogPage page, IStatus status) {
String message= status.getMessage();
switch (status.getSeverity()) {
case IStatus.OK:
page.setMessage(message, IMessageProvider.NONE);
page.setErrorMessage(null);
break;
case IStatus.WARNING:
page.setMessage(message, IMessageProvider.WARNING);
page.setErrorMessage(null);
break;
case IStatus.INFO:
page.setMessage(message, IMessageProvider.INFORMATION);
page.setErrorMessage(null);
break;
default:
if (message.length() == 0) {
message= null;
}
page.setMessage(null);
page.setErrorMessage(message);
break;
}
}
/**
* Validates the current script.
*
* @return <code>true</code> if no error was found, <code>false</code>
* otherwise.
*/
protected boolean validateScript( )
{
if ( sourceViewer == null )
{
return false;
}
String errorMessage = null;
try
{
new ScriptValidator( sourceViewer ).validate( true, true );
setMessage( Messages.getString( "ExpressionBuilder.Script.NoError" ), IMessageProvider.INFORMATION ); //$NON-NLS-1$
return true;
}
catch ( ParseException e )
{
int offset = e.getErrorOffset( );
int row = sourceViewer.getTextWidget( ).getLineAtOffset( offset ) + 1;
int column = offset
- sourceViewer.getTextWidget( ).getOffsetAtLine( row - 1 )
+ 1;
errorMessage = Messages.getFormattedString( "ExpressionBuilder.Script.Error", new Object[]{Integer.toString( row ), Integer.toString( column ), e.getLocalizedMessage( )} ); //$NON-NLS-1$
return false;
}
finally
{
setErrorMessage( errorMessage );
}
}
@Override
protected Control createContents(Composite parent) {
Control contents = super.createContents(parent);
setTitle(Resources.getMessage("DialogDefaultParameters.1")); //$NON-NLS-1$
setMessage(Resources.getMessage("DialogDefaultParameters.0"), IMessageProvider.INFORMATION); //$NON-NLS-1$
return contents;
}