32 33 import java.io.Serializable; 34 35 36 /** 37 * ComboBox renderer 38 * <p> 39 * <strong>Warning:</strong> 40 * Serialized objects of this class will not be compatible with 41 * future Swing releases. The current serialization support is 42 * appropriate for short term storage or RMI between applications running 43 * the same version of Swing. As of 1.4, support for long term storage 44 * of all JavaBeans™ 45 * has been added to the <code>java.beans</code> package. 46 * Please see {@link java.beans.XMLEncoder}. 47 * 48 * @author Arnaud Weber 49 */ 50 @SuppressWarnings("serial") // Same-version serialization only 51 public class BasicComboBoxRenderer extends JLabel 52 implements ListCellRenderer, Serializable { 53 54 /** 55 * An empty <code>Border</code>. This field might not be used. To change the 56 * <code>Border</code> used by this renderer directly set it using 57 * the <code>setBorder</code> method. 58 */ 59 protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1); 60 private final static Border SAFE_NO_FOCUS_BORDER = new EmptyBorder(1, 1, 1, 1); 61 62 public BasicComboBoxRenderer() { 63 super(); 64 setOpaque(true); 65 setBorder(getNoFocusBorder()); 66 } 67 68 private static Border getNoFocusBorder() { 69 if (System.getSecurityManager() != null) { 70 return SAFE_NO_FOCUS_BORDER; 71 } else { 72 return noFocusBorder; 73 } 74 } 75 76 public Dimension getPreferredSize() { 77 Dimension size; 78 79 if ((this.getText() == null) || (this.getText().equals( "" ))) { 80 setText( " " ); 81 size = super.getPreferredSize(); 82 setText( "" ); 83 } 84 else { 85 size = super.getPreferredSize(); 86 } 87 88 return size; 89 } 90 91 public Component getListCellRendererComponent( 92 JList list, 93 Object value, 94 int index, 95 boolean isSelected, 96 boolean cellHasFocus) 97 { 98 99 /**if (isSelected) { 100 setBackground(UIManager.getColor("ComboBox.selectionBackground")); 101 setForeground(UIManager.getColor("ComboBox.selectionForeground")); 102 } else { 103 setBackground(UIManager.getColor("ComboBox.background")); 104 setForeground(UIManager.getColor("ComboBox.foreground")); 105 }**/ 106 107 if (isSelected) { 108 setBackground(list.getSelectionBackground()); 109 setForeground(list.getSelectionForeground()); 110 } 111 else { 112 setBackground(list.getBackground()); | 32 33 import java.io.Serializable; 34 35 36 /** 37 * ComboBox renderer 38 * <p> 39 * <strong>Warning:</strong> 40 * Serialized objects of this class will not be compatible with 41 * future Swing releases. The current serialization support is 42 * appropriate for short term storage or RMI between applications running 43 * the same version of Swing. As of 1.4, support for long term storage 44 * of all JavaBeans™ 45 * has been added to the <code>java.beans</code> package. 46 * Please see {@link java.beans.XMLEncoder}. 47 * 48 * @author Arnaud Weber 49 */ 50 @SuppressWarnings("serial") // Same-version serialization only 51 public class BasicComboBoxRenderer extends JLabel 52 implements ListCellRenderer<Object>, Serializable { 53 54 /** 55 * An empty <code>Border</code>. This field might not be used. To change the 56 * <code>Border</code> used by this renderer directly set it using 57 * the <code>setBorder</code> method. 58 */ 59 protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1); 60 private final static Border SAFE_NO_FOCUS_BORDER = new EmptyBorder(1, 1, 1, 1); 61 62 public BasicComboBoxRenderer() { 63 super(); 64 setOpaque(true); 65 setBorder(getNoFocusBorder()); 66 } 67 68 private static Border getNoFocusBorder() { 69 if (System.getSecurityManager() != null) { 70 return SAFE_NO_FOCUS_BORDER; 71 } else { 72 return noFocusBorder; 73 } 74 } 75 76 public Dimension getPreferredSize() { 77 Dimension size; 78 79 if ((this.getText() == null) || (this.getText().equals( "" ))) { 80 setText( " " ); 81 size = super.getPreferredSize(); 82 setText( "" ); 83 } 84 else { 85 size = super.getPreferredSize(); 86 } 87 88 return size; 89 } 90 91 @Override 92 public Component getListCellRendererComponent(JList<?> list, 93 Object value, 94 int index, 95 boolean isSelected, 96 boolean cellHasFocus) 97 { 98 99 /**if (isSelected) { 100 setBackground(UIManager.getColor("ComboBox.selectionBackground")); 101 setForeground(UIManager.getColor("ComboBox.selectionForeground")); 102 } else { 103 setBackground(UIManager.getColor("ComboBox.background")); 104 setForeground(UIManager.getColor("ComboBox.foreground")); 105 }**/ 106 107 if (isSelected) { 108 setBackground(list.getSelectionBackground()); 109 setForeground(list.getSelectionForeground()); 110 } 111 else { 112 setBackground(list.getBackground()); |