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例子

向我的应用程序添加滚动窗格时遇到问题。我的应用程序是这样工作的： 1. 在开始时 panel1（黄色一个）被初始化 2. 在我按下“potvrdit”后 panel2（红色一个被初始化） 3. 一组面板（绿色一个）被添加到 panel2

问题是当设置（绿色面板）的数量对于屏幕来说太大时，我无法添加滚动条。如您所见，它只是在右侧添加了细线。

这是我的源代码的一部分：

JFrame jframe = new JFrame("Etiket print.");
JPanel panel0 = new JPanel();
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
JPanel panel3 = new JPanel();
JPanel panel4 = new JPanel();
JScrollPane scrollFrame = new JScrollPane(panel2);
jframe.setMinimumSize(new Dimension(1280, 1000));
GridBagConstraints c = new GridBagConstraints();        
panel0.setLayout(new GridBagLayout());
panel1.setLayout(new GridBagLayout());
panel2.setLayout(new GridBagLayout());
panel2.setAutoscrolls(true);
panel3.setLayout(new GridBagLayout());
panel4.setLayout(new GridBagLayout());
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel container = new JPanel();
JPanel container1 = new JPanel();
JPanel container2 = new JPanel();
container.setLayout(new BoxLayout(container, BoxLayout.Y_AXIS));
container1.setLayout(new BoxLayout(container1, BoxLayout.Y_AXIS));
container2.setLayout(new BoxLayout(container2, BoxLayout.X_AXIS));
container1.add(panel0);
container1.add(panel1);
container2.add(container1);
container2.add(panel3);
container2.add(panel4);
container.add(container2);
container.add(panel2);
jframe.add(scrollFrame);
jframe.add(container, BorderLayout.NORTH);
jframe.pack();
jframe.setVisible(true);
if (e.getActionCommand().equals("Potvrd")||e.getActionCommand().equals("myTextField")){

                temporaryBlockedSubharnesses.clear();
                panel2.removeAll();

                harnessPanelList.clear();


            GridBagConstraints c = new GridBagConstraints();

            for (int i=0; i<20; i++){
            c.fill = GridBagConstraints.HORIZONTAL;
            c.weightx = 0.5;
            c.gridx = 0;
            c.gridy = i;
            JPanel hp= new JPanel();
                hp.setMinimumSize(new Dimension(80, 70));
                hp.setMaximumSize(new Dimension(80, 70));
                hp.setPreferredSize(new Dimension(80, 70));
                if(i%2==0) {
                hp.setBackground(myBlue1Color);
            }
            else {
                    hp.setBackground(myBlue2Color);
                 }


            panel2.add(hp, c);

               hp.repaint();
              hp.validate();
            }
            panel2.repaint();
            panel2.validate();
            jframe.repaint();

        }
4

1 回答 1

1

而不是从 swingx 库中JPanel尝试。JXPanel它实现Scrollable所以它支持滚动。

于 2013-08-26T08:25:27.830 回答