JTree 및 JButton에 문제가 있습니다 편집 모드에 들어가서 TreeCell의 단추 위로 마우스를 가져 가면 단추 내부의 일부 트리가 Renderes됩니다 . 동일한 행의 한 단추에서 다른 단추로 끌면 다른 단추보다 한 단추가 Renderes됩니다.JTree & JButtons - 마우스가 단추 위로 움직일 때 잘못된 렌더링이 발생했습니다.
여기에 붙여 넣기를 복사 할 수있는 간단한 자기 설명 샘플. 의미를 확인하십시오.
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.util.EventObject;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellEditor;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MyProblemWithTree {
public static void main(String...args) {
JFrame frame = new JFrame("Panel");
JScrollPane scroll = new JScrollPane();
DefaultMutableTreeNode node = new DefaultMutableTreeNode("Root");
DefaultMutableTreeNode nodeChild = new DefaultMutableTreeNode("childcaretaker1");
nodeChild.add(new DefaultMutableTreeNode("child1"));
nodeChild.add(new DefaultMutableTreeNode("child2"));
node.add(nodeChild);
final JTree tree = new JTree(node);
tree.setCellRenderer(new MyTreeCellRenderer());
tree.setEditable(true);
tree.setCellEditor(new MyTreeCellEditor(tree));
tree.addMouseMotionListener(new MouseMotionListener() {
@Override
public void mouseMoved(MouseEvent e) {
// TODO Auto-generated method stub
if (tree.getRowForLocation(e.getX(), e.getY()) != -1)
{
tree.startEditingAtPath(tree.getPathForLocation(e.getX(), e.getY()));
}
}
@Override
public void mouseDragged(MouseEvent arg0) {
// TODO Auto-generated method stub
}
});
scroll.setViewportView(tree);
frame.add(scroll);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
}
class MyTreeCellEditor extends DefaultTreeCellEditor {
JPanel leafPanel;
JLabel colorIcon;
PlayButton play;
PauseButton pause;
JLabel name;
public MyTreeCellEditor(JTree tree) {
super(tree, (MyTreeCellRenderer)tree.getCellRenderer());
leafPanel = new JPanel(new FlowLayout());
colorIcon = new JLabel(UIManager.getIcon("OptionPane.informationIcon"));
play = new PlayButton();
pause = new PauseButton();
name = new JLabel();
play.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
System.out.println("Playbutton klickt");
}
});
leafPanel.add(colorIcon);
leafPanel.add(name);
leafPanel.add(pause);
leafPanel.add(play);
}
@Override
public Component getTreeCellEditorComponent(JTree tree, Object value,
boolean selected, boolean expanded, boolean leaf, int row) {
name.setText((String)((DefaultMutableTreeNode)value).getUserObject());
pause.setVisible(!leaf);
return leafPanel;
}
@Override
public boolean isCellEditable(EventObject arg0) {
return true;
}
}
class MyTreeCellRenderer extends DefaultTreeCellRenderer {
private static final long serialVersionUID = 3691823996133806942L;
JPanel leafPanel;
JLabel colorIcon;
PlayButton play;
PauseButton pause;
JLabel name;
DefaultTreeCellRenderer defaultRenderer = new DefaultTreeCellRenderer();
Color backgroundSelectionColor;
Color backgroundNonSelectionColor;
public MyTreeCellRenderer() {
leafPanel = new JPanel(new FlowLayout());
colorIcon = new JLabel(UIManager.getIcon("OptionPane.informationIcon"));
play = new PlayButton();
pause = new PauseButton();
name = new JLabel();
leafPanel.add(colorIcon);
leafPanel.add(name);
leafPanel.add(pause);
leafPanel.add(play);
backgroundSelectionColor = new Color(200,200,255,50);
backgroundNonSelectionColor = new Color(0,0,0,0);
}
@Override
public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) {
name.setText((String)((DefaultMutableTreeNode) value).getUserObject());
if (selected) {
leafPanel.setBackground(backgroundSelectionColor);
} else {
leafPanel.setBackground(backgroundNonSelectionColor);
}
leafPanel.setEnabled(tree.isEnabled());
pause.setVisible(!leaf);
return leafPanel;
}
}
class PlayButton extends JButton{
private static final long serialVersionUID = 550654173835539853L;
Dimension size = new Dimension(140,28);
public PlayButton() {
setIcon(UIManager.getIcon("OptionPane.informationIcon"));
setPressedIcon(UIManager.getIcon("OptionPane.errorIcon"));
setBackground(new Color(0,0,0,0));
setBorderPainted(false);
setPreferredSize(size);
setMaximumSize(size);
setMinimumSize(size);
}
}
class PauseButton extends JButton{
private static final long serialVersionUID = -5877843953696256070L;
Dimension size = new Dimension(140,28);
public PauseButton() {
setIcon(UIManager.getIcon("OptionPane.warningIcon"));
setPressedIcon(UIManager.getIcon("OptionPane.questionIcon"));
setBackground(new Color(0,0,0,0));
setBorderPainted(false);
setPreferredSize(size);
setMaximumSize(size);
setMinimumSize(size);
}
}
이 부분을 지울 때도. 편집 모드를 시작하려면 셀을 클릭해야합니다. 셀을 마우스로두고 다시 돌아가서 효과를 얻을 수 있습니다.
public void mouseMoved(MouseEvent e) {
// TODO Auto-generated method stub
if (tree.getRowForLocation(e.getX(), e.getY()) != -1)
{
tree.startEditingAtPath(tree.getPathForLocation(e.getX(), e.getY()));
}
}
나는이 JTree 커스터마이징에 이미 4 일을 소비합니다. 하지만 실제로는 혼란 스럽습니다. 버튼 입력으로 렌더링을 멈출 수있는 방법입니다.
사용 UIManager.getIcon ("OptionPane.errorIcon/informationIcon/warningIcon/questionIcon"); 대신 여기에 귀하의 질문을 편집 – mKorbel
[간단한 예제] (http://stackoverflow.com/a/4170233/230513) 고려하십시오. – trashgod
과 관련이있을 수도 있고 그렇지 않을 수도 있습니다. 편집기 구현이 유효하지 않습니다. 내부 원인에 따라 편집을 종료 할 때 리스너에게 통지해야합니다. – kleopatra