随便写写——JFrame中加载JPanel，JLabel中字符串换行显示

来源：互联网发布：软件开发流程图工具编辑：程序博客网时间：2024/06/05 21:54

public class JPanelJFrame extends JFrame {

HelpPanel panel = new HelpPanel();

public JPanelJFrame() {
  this.setLayout(new BorderLayout());
  this.getContentPane().add(panel);

  this.setSize(panel.getWidth() + 10, panel.getHeight() + 10);
  this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  this.setVisible(true);
}
public static void main(String[] args) {
  new JPanelJFrame();

}

public class HelpPanel extends JPanel {
private JLabel loadMIBLabel;
private JLabel loadMIBPicLabel;
private JLabel loadDataLabel;
private JLabel loadDataPicLabel;

private int w_width;
private int h_height;

private int maxWidth;

private String picPath = "images/splash.jpg";
public HelpPanel() {
initGUI();
}

private void initGUI() {
 try {
 {
 GridBagLayout thisLayout = new GridBagLayout();
 thisLayout.rowWeights = new double[] {0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1};
 thisLayout.rowHeights = new int[] {7, 7, 7, 7, 7, 7, 7, 7};
 thisLayout.columnWeights = new double[] {0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1};
 thisLayout.columnWidths = new int[] {7, 7, 7, 7, 7, 7, 7, 7};
 this.setLayout(thisLayout);
 {
 loadMIBLabel = new JLabel("<html>加载文件的步骤是: 1.选择'文件'菜单，然后选择'加载文件'菜单项 2.在弹出的'加载文件对话框'中，输入文件的绝对路径，或者点击'浏览'按钮，选择文件</html>", SwingConstants.CENTER);
 this.add(loadMIBLabel, new GridBagConstraints(0, 0, 8, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(6, 12, 6, 12), 0, 0));
// loadMIBLabel.setHorizontalTextPosition(JLabel.CENTER);
 System.out.println(loadMIBLabel.getWidth());
 maxWidth = maxWidth > loadMIBLabel.getWidth() ? maxWidth : loadMIBLabel.getWidth();
 h_height += 100;
 }
 {
 ImageIcon imageIcon = new ImageIcon(picPath);
 Image image = imageIcon.getImage();
 int width = image.getWidth(null);
 int height = image.getHeight(null);
 loadMIBPicLabel = new JLabel(imageIcon);
 this.add(loadMIBPicLabel, new GridBagConstraints(0, 1, 8, 3, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(6, 12, 6, 12), 0, 0));
// loadMIBPicLabel.setText("<html>步骤是: 1.打开菜单 2.选择文件</html>");
 maxWidth = maxWidth > width ? maxWidth : width;
 h_height += height;
 }
 {
 loadDataLabel = new JLabel();
 this.add(loadDataLabel, new GridBagConstraints(0, 4, 8, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(6, 12, 6, 12), 0, 0));
 loadDataLabel.setText("<html>步骤是: 1.打开菜单 2.选择文件</html>");
 maxWidth = maxWidth > loadDataLabel.getWidth() ? maxWidth : loadDataLabel.getWidth();
 h_height += 100;

 }
 {
 ImageIcon imageIcon = new ImageIcon(picPath);
 Image image = imageIcon.getImage();
 int width = image.getWidth(null);
 int height = image.getHeight(null);
 loadDataPicLabel = new JLabel(imageIcon);
 this.add(loadDataPicLabel, new GridBagConstraints(0, 5, 8, 3, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(6, 12, 6, 12), 0, 0));
// loadDataPicLabel.setText("<html>步骤是: 1.打开菜单 2.选择文件</html>");
 maxWidth = maxWidth > width ? maxWidth : width;
 h_height += height;
 }
 {
 this.w_width = maxWidth;
 this.setSize(this.w_width, h_height);
 System.out.println(this.w_width + " " + this.h_height);
 }

 }
 } catch(Exception e) {
 e.printStackTrace();
 }
}

}