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目前我使用TreeEditor时有小错误。我的代码:Java TreeEditor用户界面错误
package test;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TreeEditor;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.swt.widgets.TreeItem;
public class Test {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Tree tree = new Tree(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
tree.setHeaderVisible(true);
TreeColumn column1 = new TreeColumn(tree, SWT.LEFT);
column1.setText("Column 1");
column1.setWidth(200);
TreeColumn column2 = new TreeColumn(tree, SWT.CENTER);
column2.setText("Column 2");
column2.setWidth(200);
TreeColumn column3 = new TreeColumn(tree, SWT.RIGHT);
column3.setText("Column 3");
column3.setWidth(200);
TreeColumn column4 = new TreeColumn(tree, SWT.LEFT);
column4.setText("Column 4");
column4.setWidth(200);
for (int i = 0; i < 20; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText(new String[] { "item " + i, "abc" + i, "percentage " + i });
ProgressBar bar = new ProgressBar(tree, SWT.NULL);
bar.setVisible(true);
bar.setSelection(i);
bar.setToolTipText(i + "%");
TreeEditor editor = new TreeEditor(tree);
editor.grabHorizontal = true;
editor.grabVertical = true;
editor.setEditor(bar, item, 3);
}
// shell.pack();
shell.setSize(900, 295);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
当我点击最下面一行(“项目12”)的文本,操作系统会自动向下滚动1行。但是当我检查ProgressBar ToolTip时,“item 12”进度条显示11%。这意味着进度条不会向下滚动一行。 我该如何解决这个问题?谢谢。
感谢您的帮助。有用。但我认为这就像一个把戏:D –
@DucTran不客气!是的,这绝对是一个骗局,因为我相信这是一个Eclipse错误。如果你还没有,绝对值得通过我提供的链接报告错误! – avojak