Java 拖航问题,;将支架放置在RedHat 5上的选项卡内
我对标签中的树项目的拖放支持有一个问题,下面的简单代码在Windows XP/7、Ubuntu、Fedora和RedHat 4上运行良好,但在RedHat 5上失败Java 拖航问题,;将支架放置在RedHat 5上的选项卡内,java,tabs,drag-and-drop,swt,jface,Java,Tabs,Drag And Drop,Swt,Jface,我对标签中的树项目的拖放支持有一个问题,下面的简单代码在Windows XP/7、Ubuntu、Fedora和RedHat 4上运行良好,但在RedHat 5上失败 @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); setShellStyle(getShellStyle(
@Override
protected Control createDialogArea(Composite parent) {
Composite composite = (Composite) super.createDialogArea(parent);
setShellStyle(getShellStyle() | SWT.RESIZE);
TabFolder tabFolder = new TabFolder(composite, SWT.NONE);
tabFolder.setLayoutData(new GridData(GridData.FILL_BOTH));
TabItem tab = new TabItem(tabFolder, SWT.NONE);
tab.setText("TabName");
/*
* TabItem 1 Content:
*/
TreeViewer tree = new TreeViewer(tabFolder, SWT.SINGLE|SWT.BORDER);
tree.setLabelProvider(provider);
tree.setContentProvider(provider);
tree.getTree().setHeaderVisible(true);
tree.getTree().setLayoutData(new GridData(GridData.FILL_BOTH));
TreeColumn tc = new TreeColumn(tree.getTree(), SWT.NONE, 0);
tc.setText("Name");
tc.setWidth(100);
tab.setControl(tree.getTree());
tree.setInput(provider.getInput());
/*
* Drag&Drop Support
*/
Transfer[] transfers = new Transfer[] { TextTransfer.getInstance()};
DragDropItemsSupport dndItemsListener = new DragDropItemsSupport(tree);
tree.addDragSupport(DND.DROP_MOVE, transfers, dndItemsListener);
tree.addDropSupport(DND.DROP_MOVE, transfers, dndItemsListener);
return composite;
}
当我说“运行良好”时,我能够在提到的主机上通过ViewerDropAdapter的dragOver方法
@Override
public void dragOver(DropTargetEvent event) {
if (event.item != null)
System.out.println("Drag over : " + ((TreeItem)event.item).getText());
}
是否有人有解释、调查方法或解决方案:)?我在Centos 5的TabFolder中的TabItem中的TableViewer上看到了同样的情况。没有在其他操作系统上测试过。可通过更改为CTabFolder和CTabItem进行修复 为了充分利用DnD功能,不得不使用非本机的选项卡实现。。。不管怎样,它是有效的:)