public static TreeItem getTreeItem(Tree tree, Object data) {
for (TreeItem item : tree.getItems()) {
if (item.getData() == data) {
return item;
}
}
return null;
}
public static void packColumns(@NotNull Tree tree, boolean fit, @Nullable float[] ratios) {
tree.setRedraw(false);
try {
// Check for disposed items
// TODO: it looks like SWT error. Sometimes tree items are disposed and NPE is thrown from
// column.pack
for (TreeItem item : tree.getItems()) {
if (item.isDisposed()) {
return;
}
}
int totalWidth = 0;
final TreeColumn[] columns = tree.getColumns();
for (TreeColumn column : columns) {
column.pack();
totalWidth += column.getWidth();
}
Rectangle clientArea = tree.getClientArea();
if (clientArea.isEmpty()) {
return;
}
if (fit) {
int areaWidth = clientArea.width;
if (tree.getVerticalBar() != null) {
areaWidth -= tree.getVerticalBar().getSize().x;
}
if (totalWidth > areaWidth) {
int extraSpace = totalWidth - areaWidth;
for (TreeColumn tc : columns) {
double ratio = (double) tc.getWidth() / totalWidth;
tc.setWidth((int) (tc.getWidth() - extraSpace * ratio));
}
} else if (totalWidth < areaWidth) {
float extraSpace = areaWidth - totalWidth;
if (columns.length > 0) {
if (ratios == null || ratios.length < columns.length) {
extraSpace /= columns.length;
extraSpace--;
for (TreeColumn tc : columns) {
tc.setWidth((int) (tc.getWidth() + extraSpace));
}
} else {
for (int i = 0; i < columns.length; i++) {
TreeColumn tc = columns[i];
tc.setWidth((int) (tc.getWidth() + extraSpace * ratios[i]));
}
}
}
}
}
} finally {
tree.setRedraw(true);
}
}
@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;
}