/**
* 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;
}
}
public void mouseDown(MouseEvent e) {
Composite parent = fControl.getParent();
Point s = parent.getSize();
Point as = fAncestorLabel.getSize();
Point ys = fLeftLabel.getSize();
Point ms = fRightLabel.getSize();
fWidth1 = ys.x;
fWidth2 = ms.x;
fHeight1 = fLeftLabel.getLocation().y - as.y;
fHeight2 = s.y - (fLeftLabel.getLocation().y + ys.y);
fX = e.x;
fY = e.y;
fIsDown = true;
}
/**
* Builds the SWT controls for the three areas of a compare/merge viewer.
*
* <p>Calls the hooks <code>createControls</code> and <code>createToolItems</code> to let
* subclasses build the specific content areas and to add items to an enclosing toolbar.
*
* <p>This method must only be called in the constructor of subclasses.
*
* @param parent the parent control
* @return the new control
*/
protected final Control buildControl(Composite parent) {
fComposite =
new Composite(parent, fStyles | SWT.LEFT_TO_RIGHT) { // we
// force
// a
// specific
// direction
public boolean setFocus() {
return ContentMergeViewer.this.handleSetFocus();
}
};
fComposite.setData(CompareUI.COMPARE_VIEWER_TITLE, getTitle());
hookControl(fComposite); // hook help & dispose listener
fComposite.setLayout(new ContentMergeViewerLayout());
int style = SWT.SHADOW_OUT;
fAncestorLabel = new CLabel(fComposite, style | Window.getDefaultOrientation());
fLeftLabel = new CLabel(fComposite, style | Window.getDefaultOrientation());
new Resizer(fLeftLabel, VERTICAL);
fDirectionLabel = new CLabel(fComposite, style);
fDirectionLabel.setAlignment(SWT.CENTER);
new Resizer(fDirectionLabel, HORIZONTAL | VERTICAL);
fRightLabel = new CLabel(fComposite, style | Window.getDefaultOrientation());
new Resizer(fRightLabel, VERTICAL);
if (fCenter == null || fCenter.isDisposed()) fCenter = createCenterControl(fComposite);
createControls(fComposite);
fHandlerService =
CompareHandlerService.createFor(
getCompareConfiguration().getContainer(), fComposite.getShell());
initializeToolbars(parent);
return fComposite;
}
@Override
protected Control createCustomArea(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout());
buttons = new Button[3];
for (int i = 0; i < 3; i++) {
buttons[i] = new Button(composite, SWT.RADIO);
buttons[i].addSelectionListener(selectionListener);
buttons[i].setText(
NLS.bind(
TeamUIMessages.SelectAncestorDialog_option,
theResources[i].getFullPath().toPortableString()));
buttons[i].setFont(parent.getFont());
// set initial state
buttons[i].setSelection(i == 0);
}
pickAncestor(0);
return composite;
}
public void layout(Composite composite, boolean force) {
// determine some derived sizes
int headerHeight = fLeftLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).y;
Rectangle r = composite.getClientArea();
int centerWidth = getCenterWidth();
int width1 = (int) ((r.width - centerWidth) * getHorizontalSplitRatio());
int width2 = r.width - width1 - centerWidth;
int height1 = 0;
int height2 = 0;
if (fIsThreeWay && fAncestorVisible) {
height1 = (int) ((r.height - (2 * headerHeight)) * fVSplit);
height2 = r.height - (2 * headerHeight) - height1;
} else {
height1 = 0;
height2 = r.height - headerHeight;
}
int y = 0;
if (fIsThreeWay && fAncestorVisible) {
fAncestorLabel.setBounds(0, y, r.width, headerHeight);
fAncestorLabel.setVisible(true);
y += headerHeight;
handleResizeAncestor(0, y, r.width, height1);
y += height1;
} else {
fAncestorLabel.setVisible(false);
handleResizeAncestor(0, 0, 0, 0);
}
fLeftLabel.getSize(); // without this resizing would not always work
if (centerWidth > 3) {
fLeftLabel.setBounds(0, y, width1 + 1, headerHeight);
fDirectionLabel.setVisible(true);
fDirectionLabel.setBounds(width1 + 1, y, centerWidth - 1, headerHeight);
fRightLabel.setBounds(width1 + centerWidth, y, width2, headerHeight);
} else {
fLeftLabel.setBounds(0, y, width1, headerHeight);
fDirectionLabel.setVisible(false);
fRightLabel.setBounds(width1, y, r.width - width1, headerHeight);
}
y += headerHeight;
if (fCenter != null && !fCenter.isDisposed())
fCenter.setBounds(width1, y, centerWidth, height2);
handleResizeLeftRight(0, y, width1, centerWidth, width2, height2);
}
private void internalRefresh(Object input) {
IMergeViewerContentProvider content = getMergeContentProvider();
if (content == null) {
return;
}
Object ancestor = content.getAncestorContent(input);
boolean oldFlag = fIsThreeWay;
if (Utilities.isHunk(input)) {
fIsThreeWay = true;
} else if (input instanceof ICompareInput)
fIsThreeWay = (((ICompareInput) input).getKind() & Differencer.DIRECTION_MASK) != 0;
else fIsThreeWay = ancestor != null;
if (fAncestorItem != null) fAncestorItem.setVisible(fIsThreeWay);
if (fAncestorVisible && oldFlag != fIsThreeWay) fComposite.layout(true);
Object left = content.getLeftContent(input);
Object right = content.getRightContent(input);
updateContent(ancestor, left, right);
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=453799
// Content provider may be disposed after call to updateContent()
content = getMergeContentProvider();
if (content == null) {
return;
}
updateHeader();
ToolBarManager tbm = CompareViewerPane.getToolBarManager(fComposite.getParent());
if (tbm != null) {
updateToolItems();
tbm.update(true);
tbm.getControl().getParent().layout(true);
}
}
/**
* This method is called from the <code>Viewer</code> method <code>inputChanged</code> to save any
* unsaved changes of the old input.
*
* <p>The <code>ContentMergeViewer</code> implementation of this method calls <code>
* saveContent(...)</code>. If confirmation has been turned on with <code>setConfirmSave(true)
* </code>, a confirmation alert is posted before saving. Clients can override this method and are
* free to decide whether they want to call the inherited method.
*
* @param newInput the new input of this viewer, or <code>null</code> if there is no new input
* @param oldInput the old input element, or <code>null</code> if there was previously no input
* @return <code>true</code> if saving was successful, or if the user didn't want to save (by
* pressing 'NO' in the confirmation dialog).
* @since 2.0
*/
protected boolean doSave(Object newInput, Object oldInput) {
// before setting the new input we have to save the old
if (isLeftDirty() || isRightDirty()) {
if (Utilities.RUNNING_TESTS) {
if (Utilities.TESTING_FLUSH_ON_COMPARE_INPUT_CHANGE) {
flushContent(oldInput, null);
}
} else if (fConfirmSave) {
// post alert
Shell shell = fComposite.getShell();
MessageDialog dialog =
new MessageDialog(
shell,
Utilities.getString(getResourceBundle(), "saveDialog.title"), // $NON-NLS-1$
null, // accept the default window icon
Utilities.getString(getResourceBundle(), "saveDialog.message"), // $NON-NLS-1$
MessageDialog.QUESTION,
new String[] {
IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL,
},
0); // default
// button
// index
switch (dialog.open()) { // open returns index of pressed button
case 0:
flushContent(oldInput, null);
break;
case 1:
setLeftDirty(false);
setRightDirty(false);
break;
case 2:
throw new ViewerSwitchingCancelled();
}
} else flushContent(oldInput, null);
return true;
}
return false;
}
