/**
* Sets the control whose position will be managed by this proxy
*
* @param target the control, or null if none
*/
public void setTargetControl(Control target) {
if (this.target != target) {
if (this.target != null) {
for (Control next = control;
next != commonAncestor && next != null;
next = next.getParent()) {
next.removeControlListener(controlListener);
}
commonAncestor = null;
// If we already had a target, detach the dispose listener
// (prevents memory leaks due to listeners)
if (!this.target.isDisposed()) {
this.target.removeDisposeListener(disposeListener);
}
}
if (this.target == null && target != null) {
// If we had previously forced the dummy control invisible, restore its visibility
control.setVisible(visible);
}
this.target = target;
if (target != null) {
commonAncestor = SwtUtil.findCommonAncestor(this.target, control);
for (Control next = control;
next != null && next != commonAncestor;
next = next.getParent()) {
next.addControlListener(controlListener);
}
// Make the new target's visiblity match the visibility of the dummy control
target.setVisible(control.getVisible());
// Add a dispose listener. Ensures that the target is cleared
// if it is ever disposed.
target.addDisposeListener(disposeListener);
} else {
control.setVisible(false);
}
}
}
@Override
protected Control createControl(Composite parent) {
Composite propertyComposite = new Composite(parent, SWT.BORDER);
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = layout.marginHeight = 0;
propertyComposite.setLayout(layout);
if (mPage instanceof Page) {
((Page) mPage)
.init(
new IPageSite() {
public void registerContextMenu(
String menuId, MenuManager menuManager, ISelectionProvider selectionProvider) {}
public IActionBars getActionBars() {
return null;
}
public IWorkbenchPage getPage() {
return getWorkbenchWindow().getActivePage();
}
public ISelectionProvider getSelectionProvider() {
return null;
}
public Shell getShell() {
return getWorkbenchWindow().getShell();
}
public IWorkbenchWindow getWorkbenchWindow() {
return PlatformUI.getWorkbench().getActiveWorkbenchWindow();
}
public void setSelectionProvider(ISelectionProvider provider) {}
@SuppressWarnings("unchecked")
public Object getAdapter(Class adapter) {
return null;
}
@SuppressWarnings("unchecked")
public Object getService(Class api) {
return null;
}
@SuppressWarnings("unchecked")
public boolean hasService(Class api) {
return false;
}
});
}
if (mPage instanceof PropertySheetPage) {
((PropertySheetPage) mPage).setPropertySourceProvider(this);
}
mPage.createControl(propertyComposite);
mPage.setActionBars(new DummyActionBars());
final Control control = mPage.getControl();
GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
if (control instanceof Tree) {
final Tree tree = (Tree) control;
data.heightHint =
tree.getItemHeight() * 13
+ (tree.getLinesVisible() ? 12 * tree.getGridLineWidth() : 0)
+ (tree.getHeaderVisible() ? tree.getHeaderHeight() : 0)
+ 2 * tree.getBorderWidth()
+ (tree.getHorizontalBar() != null ? tree.getHorizontalBar().getSize().x : 0);
tree.addControlListener(
new ControlAdapter() {
@Override
public void controlResized(ControlEvent e) {
Rectangle area = tree.getClientArea();
TreeColumn[] columns = tree.getColumns();
if (area.width > 0) {
columns[0].setWidth(area.width * 40 / 100);
columns[1].setWidth(area.width - columns[0].getWidth() - 4);
}
}
});
} else if (control instanceof Composite) {
control.addControlListener(
new ControlAdapter() {
@Override
public void controlResized(ControlEvent e) {
((Composite) control).layout(true, true);
}
});
}
control.setLayoutData(data);
ISelection selection;
if (mCurrentWidget == null) {
Collection<InstallOptionsModelTypeDef> typeDefs =
InstallOptionsModel.INSTANCE.getControlTypeDefs();
if (typeDefs.size() > 0) {
InstallOptionsModelTypeDef typeDef = typeDefs.iterator().next();
InstallOptionsElementFactory factory =
InstallOptionsElementFactory.getFactory(typeDef.getType());
mCurrentWidget = (InstallOptionsWidget) factory.getNewObject();
mDialog.addChild(mCurrentWidget);
}
}
if (mCurrentWidget != null) {
mCurrentWidget.addModelCommandListener(InstallOptionsWidgetEditorDialog.this);
mCurrentWidget.addPropertyChangeListener(InstallOptionsWidgetEditorDialog.this);
if (mCurrentWidget.getParent() != null) {
mCurrentWidget.getParent().addPropertyChangeListener(InstallOptionsWidgetEditorDialog.this);
}
selection = new StructuredSelection(mCurrentWidget);
} else {
selection = StructuredSelection.EMPTY;
}
mPage.selectionChanged(null, selection);
PlatformUI.getWorkbench().getHelpSystem().setHelp(mPage.getControl(), HELP_CONTEXT);
PlatformUI.getWorkbench().getHelpSystem().setHelp(propertyComposite, HELP_CONTEXT);
return propertyComposite;
}