java swing 동적 툴팁, 멀티 라인 툴팁
프로그래밍/java 2021. 12. 20. 22:28반응형
getToolTipText 메소드 override 로 구현
JComponent (Java Platform SE 8 )
Returns true if a paint triggered on a child component should cause painting to originate from this Component, or one of its ancestors. Calling repaint(long, int, int, int, int) or paintImmediately(int, int, int, int) on a Swing component will result in ca
docs.oracle.com
package test.swing;
import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseEvent;
// dynamic tooltip
public class MainTest {
public static void main(String[] args) {
MainUI mainUI = new MainUI();
mainUI.setVisible(true);
}
}
class ToolTipButton extends JButton {
boolean mIsNum = true;
public ToolTipButton(String text) {
super(text);
}
// 1. use setToolTipText
@Override
public String getToolTipText(MouseEvent event) {
if (mIsNum) {
setToolTipText("0123456789");
}
else {
setToolTipText("ABCDEFG");
}
mIsNum = !mIsNum;
return super.getToolTipText(event);
}
// 2. return text directly
@Override
public String getToolTipText(MouseEvent event) {
String text = "";
if (mIsNum) {
text = "0123456789";
}
else {
text = "ABCDEFG";
}
mIsNum = !mIsNum;
return text;
}
}
class MainUI extends JFrame {
MainUI() {
setPreferredSize(new Dimension(400, 300));
setLayout(new FlowLayout());
JButton button = new ToolTipButton("TEST");
button.setToolTipText("");
button.setPreferredSize(new Dimension(100, 100));
add(button);
pack();
}
}멀티라인 툴팁
setToolTipText("<html>a<br>b</html>");반응형