diff options
Diffstat (limited to 'examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet363.java')
| -rw-r--r-- | examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet363.java | 130 |
1 files changed, 65 insertions, 65 deletions
diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet363.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet363.java index ed14dc4436..23431a48cf 100644 --- a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet363.java +++ b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet363.java @@ -28,86 +28,86 @@ import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; public class Snippet363 { - static final String errorMessage = "Error: Number expected."; - static Label icon; - static Image errorIcon; - static Text liveLabel; + static final String errorMessage = "Error: Number expected."; + static Label icon; + static Image errorIcon; + static Text liveLabel; public static void main(String [] args) { - Display display = new Display(); - errorIcon = display.getSystemImage(SWT.ICON_ERROR); - Shell shell = new Shell(display); + Display display = new Display(); + errorIcon = display.getSystemImage(SWT.ICON_ERROR); + Shell shell = new Shell(display); shell.setText("Snippet 363"); - shell.setLayout(new GridLayout(2, false)); - shell.setText("LiveRegion Test"); + shell.setLayout(new GridLayout(2, false)); + shell.setText("LiveRegion Test"); - icon = new Label(shell, SWT.NONE); - icon.setLayoutData(new GridData(32, 32)); + icon = new Label(shell, SWT.NONE); + icon.setLayoutData(new GridData(32, 32)); - liveLabel = new Text(shell, SWT.READ_ONLY); - GC gc = new GC(liveLabel); - Point pt = gc.textExtent(errorMessage); - GridData data = new GridData(SWT.FILL, SWT.CENTER, true, false); - data.minimumWidth = (int) (pt.x + gc.getFontMetrics().getAverageCharacterWidth() * 2); - gc.dispose(); - liveLabel.setLayoutData(data); - liveLabel.setText(""); - liveLabel.getAccessible().addAccessibleAttributeListener(new AccessibleAttributeAdapter() { - @Override + liveLabel = new Text(shell, SWT.READ_ONLY); + GC gc = new GC(liveLabel); + Point pt = gc.textExtent(errorMessage); + GridData data = new GridData(SWT.FILL, SWT.CENTER, true, false); + data.minimumWidth = (int) (pt.x + gc.getFontMetrics().getAverageCharacterWidth() * 2); + gc.dispose(); + liveLabel.setLayoutData(data); + liveLabel.setText(""); + liveLabel.getAccessible().addAccessibleAttributeListener(new AccessibleAttributeAdapter() { + @Override public void getAttributes(AccessibleAttributeEvent e) { - e.attributes = new String[] { - "container-live", "polite", - "live", "polite", - "container-live-role", "status", - }; - } - }); + e.attributes = new String[] { + "container-live", "polite", + "live", "polite", + "container-live-role", "status", + }; + } + }); - final Label textFieldLabel = new Label(shell, SWT.NONE); - textFieldLabel.setText("Type a number:"); - textFieldLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); + final Label textFieldLabel = new Label(shell, SWT.NONE); + textFieldLabel.setText("Type a number:"); + textFieldLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); - final Text textField = new Text(shell, SWT.SINGLE | SWT.BORDER); - textField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); + final Text textField = new Text(shell, SWT.SINGLE | SWT.BORDER); + textField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); - final Button okButton = new Button(shell, SWT.PUSH); - okButton.setText("OK"); - okButton.setLayoutData(new GridData(SWT.END, SWT.CENTER, false, false, 2, 1)); - okButton.setEnabled(false); + final Button okButton = new Button(shell, SWT.PUSH); + okButton.setText("OK"); + okButton.setLayoutData(new GridData(SWT.END, SWT.CENTER, false, false, 2, 1)); + okButton.setEnabled(false); - textField.addModifyListener(e -> { - boolean isNumber = false; - String textValue = textField.getText(); - try { - Integer.parseInt(textValue); - isNumber = true; - setMessageText(false, "Thank-you"); - } catch (NumberFormatException ex) { - if (textValue.isEmpty()) { - setMessageText(false, ""); - } else { - setMessageText(true, "Error: Number expected."); - } - } - okButton.setEnabled(isNumber); + textField.addModifyListener(e -> { + boolean isNumber = false; + String textValue = textField.getText(); + try { + Integer.parseInt(textValue); + isNumber = true; + setMessageText(false, "Thank-you"); + } catch (NumberFormatException ex) { + if (textValue.isEmpty()) { + setMessageText(false, ""); + } else { + setMessageText(true, "Error: Number expected."); + } + } + okButton.setEnabled(isNumber); }); - textField.setFocus(); - shell.pack(); - shell.open(); - while (!shell.isDisposed()) { - if (!display.readAndDispatch()) display.sleep(); - } - display.dispose(); + textField.setFocus(); + shell.pack(); + shell.open(); + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) display.sleep(); + } + display.dispose(); } static void setMessageText(boolean error, String newMessage) { - String oldMessage = liveLabel.getText(); - icon.setImage(error ? errorIcon : null); - liveLabel.setText(newMessage); - liveLabel.getAccessible().sendEvent(ACC.EVENT_ATTRIBUTE_CHANGED, null); - liveLabel.getAccessible().sendEvent(ACC.EVENT_TEXT_CHANGED, new Object[] {ACC.TEXT_DELETE, 0, oldMessage.length(), oldMessage}); - liveLabel.getAccessible().sendEvent(ACC.EVENT_TEXT_CHANGED, new Object[] {ACC.TEXT_INSERT, 0, newMessage.length(), newMessage}); + String oldMessage = liveLabel.getText(); + icon.setImage(error ? errorIcon : null); + liveLabel.setText(newMessage); + liveLabel.getAccessible().sendEvent(ACC.EVENT_ATTRIBUTE_CHANGED, null); + liveLabel.getAccessible().sendEvent(ACC.EVENT_TEXT_CHANGED, new Object[] {ACC.TEXT_DELETE, 0, oldMessage.length(), oldMessage}); + liveLabel.getAccessible().sendEvent(ACC.EVENT_TEXT_CHANGED, new Object[] {ACC.TEXT_INSERT, 0, newMessage.length(), newMessage}); } } |