Java Swing UIコンポーネントレイアウトの問題

Question

私はJavaのスイングに取り組んでおり、UIレイアウトがついています

私の現在の出力は以下の通りです。ラベル6の後のテキスト領域が縮小し、次のパネルが横に表示されます。 私が欲しいのは、パネルが次の行に来て、テキスト領域がコンボボックスと同じサイズでなければならないということです。

JFrame frame = new JFrame("My Sample Frame"); 
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
frame.setSize(1000, 800); 
frame.setVisible(true); 

JPanel jpOPanel = new JPanel(); 
jpOPanel.setBorder(new CompoundBorder(new TitledBorder("Outer Panel"), 
             new EmptyBorder(0, 2, 2, 
                 2))); 
GridBagLayout gbl = new GridBagLayout(); 
GridBagConstraints gbc = new GridBagConstraints(); 
jpOPanel.setLayout(gbl); 

JPanel jpSearch = new JPanel(new FlowLayout(FlowLayout.RIGHT)); 
JButton jbSearch = new JButton("Search"); 
jpSearch.add(jbSearch); 
gbc.weightx = 0.0D; 
gbc.weighty = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.fill = 1; 
gbc.gridwidth = 0; 
gbl.setConstraints(jpSearch, gbc); 
jpOPanel.add(jpSearch); 

JLabel jlLabel1 = new JLabel("Label 1 :"); 
gbc.weightx = 0.0D; 
gbc.weighty = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 5); 
gbc.fill = 2; 
gbc.gridwidth = -1; 
gbl.setConstraints(jlLabel1, gbc); 
jpOPanel.add(jlLabel1); 

JComboBox jComboBox1 = new JComboBox(); 
gbc.weightx = 1.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.gridwidth = 0; 
gbl.setConstraints(jComboBox1, gbc); 
jComboBox1.setVisible(true); 
jpOPanel.add(jComboBox1); 

JLabel jlLabel2 = new JLabel("Label 2 :"); 
gbc.weightx = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 5); 
gbc.gridwidth = -1; 
gbl.setConstraints(jlLabel2, gbc); 
jpOPanel.add(jlLabel2); 

JComboBox jComboBox2 = new JComboBox(); 
gbc.weightx = 1.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.gridwidth = 0; 
gbl.setConstraints(jComboBox2, gbc); 
jComboBox2.setVisible(true); 
jpOPanel.add(jComboBox2); 

JLabel jlLabel3 = new JLabel("Label 3 :"); 
gbc.weightx = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 5); 
gbc.gridwidth = -1; 
gbl.setConstraints(jlLabel3, gbc); 
jpOPanel.add(jlLabel3); 

JComboBox jComboBox3 = new JComboBox(); 
gbc.weightx = 1.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.gridwidth = 0; 
gbl.setConstraints(jComboBox3, gbc); 
jpOPanel.add(jComboBox3); 

JLabel jlLabel4 = new JLabel("Label 4 :"); 
gbc.weightx = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 5); 
gbc.gridwidth = -1; 
gbl.setConstraints(jlLabel4, gbc); 
jpOPanel.add(jlLabel4); 

JTextField jTextField1 = new JTextField(); 
jTextField1.setEditable(false); 
gbc.weightx = 1.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.gridwidth = 0; 
gbl.setConstraints(jTextField1, gbc); 
jpOPanel.add(jTextField1); 

JLabel jlLabel5 = new JLabel("Label 5 :"); 
gbc.weightx = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 5); 
gbc.gridwidth = -1; 
gbl.setConstraints(jlLabel5, gbc); 
jpOPanel.add(jlLabel5); 

JTextField jTextField2 = new JTextField(); 
jTextField2.setEditable(false); 
gbc.weightx = 1.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.gridwidth = 0; 
gbl.setConstraints(jTextField2, gbc); 
jpOPanel.add(jTextField2); 

JLabel jlLabel6 = new JLabel("Label 6 :"); 
jlLabel6.setVisible(true); 
gbc.weightx = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.gridwidth = 1; 
gbl.setConstraints(jlLabel6, gbc); 
jpOPanel.add(jlLabel6); 

JTextArea jTextArea1 = new JTextArea(3, 35); 
jTextArea1.setVisible(true); 
jTextArea1.setEditable(false); 
jTextArea1.setLineWrap(true); 
int v = ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS; 
int h = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED; 

JScrollPane jspane = new JScrollPane(jTextArea1, v, h); 
gbc.weightx = 2; 
gbc.weighty = 0.0D; 
gbc.insets = new Insets(0, 0, 5, 0); 
gbc.fill = GridBagConstraints.HORIZONTAL; 
gbc.gridwidth = 0; 
gbc.gridheight = 2; 
gbl.setConstraints(jTextArea1, gbc); 
jpOPanel.add(jspane); 
jspane.setVisible(true); 

JPanel jInnerPanel = new JPanel(); 
jInnerPanel.setBorder(new CompoundBorder(new TitledBorder(""), new EmptyBorder(0, 0, 0, 0))); 
gbc.weightx = 0.0D; 
gbc.weighty = 0.0D; 
gbc.insets = new Insets(5, 0, 5, 5); 
gbc.fill = 1; 
gbc.gridwidth = 0; 
gbl.setConstraints(jInnerPanel, gbc); 

JCheckBox jCheckBox1 = new JCheckBox("Check here"); 
jCheckBox1.setPreferredSize(new Dimension(140, 20)); 
jCheckBox1.setMinimumSize(new Dimension(140, 20)); 
jCheckBox1.setMaximumSize(new Dimension(140, 20)); 
gbc.ipady = 0; 
gbc.weightx = 0.5D; 
gbc.weighty = 0.0D; 
gbc.gridwidth = 1; 
gbc.anchor = GridBagConstraints.LINE_START; 
gbc.insets = new Insets(0, 0, 0, 0); 
gbc.gridx = 0; 
gbc.gridy = 0; 
gbl.setConstraints(jCheckBox1, gbc); 
jInnerPanel.add(jCheckBox1); 


JLabel jlLabel7 = new JLabel("Label 7 : "); 
jlLabel7.setPreferredSize(new Dimension(140, 20)); 
jlLabel7.setMinimumSize(new Dimension(140, 20)); 
jlLabel7.setMaximumSize(new Dimension(140, 20)); 
gbc.ipady = 0; 
gbc.weightx = 0.5D; 
gbc.weighty = 0.0D; 
gbc.anchor = GridBagConstraints.LINE_START; 
gbc.insets = new Insets(0, 0, 0, 0); 
gbc.gridx = 0; 
gbc.gridy = 6; 

gbl.setConstraints(jlLabel7, gbc); 
jInnerPanel.add(jlLabel7); 

JComboBox jComboBox4 = new JComboBox(); 
jComboBox4.setEnabled(false); 
jComboBox4.setPreferredSize(new Dimension(225, 20)); 
jComboBox4.setMinimumSize(new Dimension(225, 20)); 
jComboBox4.setMaximumSize(new Dimension(225, 20)); 
gbc.gridx = 1; 
gbc.gridy = 6; 
gbc.anchor = GridBagConstraints.LAST_LINE_END; 
gbl.setConstraints(jComboBox4, gbc); 
jInnerPanel.add(jComboBox4); 

jpOPanel.add(jInnerPanel); 

frame.add(jpOPanel); 

現在の表示

EXPECTED DISPLAY

Answer 1

行を交換：

gbl.setConstraints(jTextArea1, gbc); 
jpOPanel.add(jspane); 

と

jspane.setViewportView(jTextArea1); 
jpOPanel.add(jspane, gbc); 

あなたはこのケースでJScrollPanelあるjpOPanelに追加しているコンポーネントのGridBagConstraintsを設定する必要があります。