一个非常实用的关于checkboxtree小例子
package tree;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.jface.viewers.CheckboxTreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.swt.widgets.Widget;
public class TE {
private Tree tree;
protected Shell shell;
/**
* Launch the application
* @param args
*/
public static void main(String[] args) {
try {
TE window = new TE();
window.open();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Open the window
*/
public void open() {
final Display display = Display.getDefault();
createContents();
shell.open();
shell.layout();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
/**
* Create contents of the window
*/
protected void createContents() {
shell = new Shell();
shell.setSize(500, 375);
shell.setText("SWT Application");
final CheckboxTreeViewer checkboxTreeViewer = new CheckboxTreeViewer(shell, SWT.BORDER);
tree = checkboxTreeViewer.getTree();
tree.setBounds(23, 48, 459, 260);
checkboxTreeViewer.setContentProvider(new Content());
checkboxTreeViewer.setLabelProvider(new Label());
checkboxTreeViewer.setInput(getInputContent());
/* Parent []p = new Parent;
p = new Parent();
p.setName("小一");
List<Child> ls = new ArrayList<Child>();
Child c1 = new Child();
c1.setName("小一一");
ls.add(c1);
p.setChild(ls);*/
checkboxTreeViewer.expandAll();
String []obj = new String;
obj = "小一";
obj = "小二二";
setChecked(obj, tree);
//
}
private void setChecked(String [] obj, Tree tree) {
Map map = new HashMap();
for(int i = 0; i < obj.length; i) {
map.put(obj, obj);
}
internalSetChecked(map, tree);
}
private Item[] getChildren(Widget o) {
if (o instanceof TreeItem) {
return ((TreeItem) o).getItems();
}
if (o instanceof Tree) {
return ((Tree) o).getItems();
}
return null;
}
private void internalSetChecked(Map checkedElements,
Widget widget) {
Item[] items = getChildren(widget);
for (int i = 0; i < items.length; i) {
TreeItem item = (TreeItem) items;
Object data = item.getData();
if (data != null) {
String temp = ((IName)data).getName();
boolean checked = checkedElements.containsKey(temp);
if (checked != item.getChecked()) {
item.setChecked(checked);
}
}
internalSetChecked(checkedElements, item);
}
}
private List getInputContent() {
List<Parent> lst = new ArrayList<Parent>();
Parent p1 = new Parent();
p1.setName("小一");
List<Child> ls = new ArrayList<Child>();
Child c1 = new Child();
c1.setName("小一一");
ls.add(c1);
p1.setChild(ls);
Parent p2 = new Parent();
p2.setName("小二");
List<Child> lss = new ArrayList<Child>();
Child c2 = new Child();
c2.setName("小二二");
lss.add(c2);
p2.setChild(lss);
lst.add(p1);
lst.add(p2);
return lst;
}
}
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