GridBagLayoutでデーターの右づめ表示が出来ません。 Q1)下記のコードで、変更方法をお教えください。 import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.border.LineBorder; public class comboBox_Right extends JFrame { public static JComboBox[] combo=new JComboBox[4]; static comboBox_Right frame; public static void main(String args[]){ frame=new comboBox_Right("AAAA"); frame.setVisible(true); } comboBox_Right(String title) { setTitle(title); setBounds(100, 100, 300, 200); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel p = new JPanel(); //=========================== GridBagLayout layout=new GridBagLayout(); GridBagConstraints gbc=new GridBagConstraints(); p.setBackground(Color.GREEN);//GRREN-->BLUE back ground color of West panel p.setLayout(layout);//これが効いた <--- layout=new GridBagLayout(); LineBorder border = new LineBorder(Color.BLACK, 1, true); //ComboBox data String[][] combodata = { {"A0", "B0", "C0", "D0"},//No.1 Combo {"A1", "B1", "C1", "D1"}, //No.1 Combo {"A2", "B2", "C2", "D2"},//No.1 Combo {"A3", "B3", "C3", "D3"},//No.1 Combo }; int wx=100, wy=25; for(int i=0; i<4; i++){ combo[i] = new JComboBox(combodata[i]);//make 4 comboBox ((JLabel)combo[i].getRenderer()).setHorizontalAlignment(JLabel.RIGHT); setComboBox(combo[i], layout, gbc, 0, i, wx, wy);//0:index } for(int i=0; i<4; i++) p.add(combo[i]);//add 4 comboBox Container contentPane = getContentPane(); contentPane.add(p, BorderLayout.CENTER); } void setComboBox( JComboBox combo, GridBagLayout layout, GridBagConstraints gbc, int px, int py, int wx, int wy){ combo.setEditable(true); GCombo_Layout(layout, combo, gbc, px, py, wx, wy); } void GCombo_Layout(GridBagLayout layout, JComboBox combo, GridBagConstraints gbc, int x, int y, int wx, int wy){ combo.setPreferredSize(new Dimension(wx,wy)); gbc.gridx = x; gbc.gridy = y; gbc.gridheight = 1; gbc.weightx = 1.0d; gbc.weighty = 1.0d; gbc.fill = GridBagConstraints.NONE; gbc.insets = new Insets(0, 0, 0, 0); layout.setConstraints(combo, gbc); } } //以上
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