/**
* Callback that is invoked when a property in the compare configuration ( {@link
* #getCompareConfiguration()} changes.
*
* @param event the property change event
* @since 3.3
*/
protected void handlePropertyChangeEvent(PropertyChangeEvent event) {
String key = event.getProperty();
if (key.equals(ICompareUIConstants.PROP_ANCESTOR_VISIBLE)) {
fAncestorVisible =
Utilities.getBoolean(
getCompareConfiguration(),
ICompareUIConstants.PROP_ANCESTOR_VISIBLE,
fAncestorVisible);
fComposite.layout(true);
updateCursor(fLeftLabel, VERTICAL);
updateCursor(fDirectionLabel, HORIZONTAL | VERTICAL);
updateCursor(fRightLabel, VERTICAL);
return;
}
if (key.equals(ICompareUIConstants.PROP_IGNORE_ANCESTOR)) {
setAncestorVisibility(
false,
!Utilities.getBoolean(
getCompareConfiguration(), ICompareUIConstants.PROP_IGNORE_ANCESTOR, false));
return;
}
}
/**
* Creates a new content merge viewer and initializes with a resource bundle and a configuration.
*
* @param style SWT style bits
* @param bundle the resource bundle
* @param cc the configuration object
*/
protected ContentMergeViewer(int style, ResourceBundle bundle, CompareConfiguration cc) {
fStyles = style & ~(SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); // remove
// BIDI
// direction
// bits
fBundle = bundle;
fAncestorVisible =
Utilities.getBoolean(cc, ICompareUIConstants.PROP_ANCESTOR_VISIBLE, fAncestorVisible);
fConfirmSave = Utilities.getBoolean(cc, CompareEditor.CONFIRM_SAVE_PROPERTY, fConfirmSave);
setContentProvider(new MergeViewerContentProvider(cc));
fCompareInputChangeListener =
new ICompareInputChangeListener() {
public void compareInputChanged(ICompareInput input) {
if (input == getInput()) {
handleCompareInputChange();
}
}
};
// Make sure the compare configuration is not null
if (cc == null) fCompareConfiguration = new CompareConfiguration();
else fCompareConfiguration = cc;
fPropertyChangeListener =
new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
ContentMergeViewer.this.handlePropertyChangeEvent(event);
}
};
fCompareConfiguration.addPropertyChangeListener(fPropertyChangeListener);
fLeftSaveAction = new SaveAction(true);
fLeftSaveAction.setEnabled(false);
fRightSaveAction = new SaveAction(false);
fRightSaveAction.setEnabled(false);
// this is used to update the dirty status,if we use
// org.eclipse.php.internal.ui.compare.ContentMergeViewer,we will get a
// ClassCastException
cmv =
new org.eclipse.compare.contentmergeviewer.ContentMergeViewer(
fStyles, fBundle, fCompareConfiguration) {
@Override
protected void createControls(Composite composite) {}
@Override
protected void handleResizeAncestor(int x, int y, int width, int height) {}
@Override
protected void handleResizeLeftRight(
int x, int y, int leftWidth, int centerWidth, int rightWidth, int height) {}
@Override
protected void updateContent(Object ancestor, Object left, Object right) {}
@Override
protected void copy(boolean leftToRight) {}
@Override
protected byte[] getContents(boolean left) {
return null;
}
@Override
public boolean internalIsLeftDirty() {
return ContentMergeViewer.this.isLeftDirty();
}
@Override
public boolean internalIsRightDirty() {
return ContentMergeViewer.this.isRightDirty();
}
};
}