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package swt;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
public class ListDemo_03 {
public static void main(String[] args) {
//负责和操作系统交互，如读取底层事件等
Display display=new Display();
//窗口
Shell topShell=new Shell(display);
topShell.setText("测试list控件");
topShell.setSize(800, 500);
//不设置布局不显示,设置布局和设置bounds冲突
// topShell.setLayout(new GridLayout());
String[] items={"a","a1","a2","a3","a4","a5","a6"};
String[] items2=new String[0];
// List list=new List(topShell, SWT.SINGLE|SWT.VERTICAL);
// list.setItems(items);
// list.setSelection(2);
final List list2=new List(topShell, SWT.MULTI|SWT.VERTICAL);
list2.setBounds(0, 0, 100, 280);
list2.setItems(items);
// list2.setSelection(2,4);
final List list3=new List(topShell, SWT.MULTI|SWT.VERTICAL);
list3.setBounds(150, 0, 100, 280);
list3.setItems(items2);
SelectionAdapter selectionAdapter= new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
Button source = (Button) e.getSource();
String text = source.getText();
if (text.equals(">")) {
String[] selections = list2.getSelection();
for (int i = 0; i < selections.length; i++) {
list2.remove(selections[i]);
list3.add(selections[i]);
}
}else if(">>".equals(text)){
}else if("<".equals(text)){
}else if("<<".equals(text)){
}else if("上".equals(text)){
int selectionIndex = list3.getSelectionIndex();
String currentValue = list3.getItem(selectionIndex);
list3.setItem(selectionIndex, list3.getItem(selectionIndex-1));
list3.setItem(selectionIndex-1, currentValue);
}else if("下".equals(text)){
}
}
};
Button button=new Button(topShell, SWT.LEFT);
button.setText(">");
button.addSelectionListener(selectionAdapter);
button.setBounds(110, 0, 30, 20);
Button button2=new Button(topShell, SWT.LEFT);
button2.setText("<");
Button button3=new Button(topShell, SWT.LEFT);
button3.setText(">>");
Button button4=new Button(topShell, SWT.LEFT);
button4.setText("<<");
Button button5=new Button(topShell, SWT.LEFT);
button5.setText("上");
button5.addSelectionListener(selectionAdapter);
button5.setBounds(110, 50, 30, 20);
Button button6=new Button(topShell, SWT.LEFT);
button6.setText("下");
// topShell.pack();
topShell.open();
while(!topShell.isDisposed()){
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
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