src/be/nikiroo/utils/ui/ConfigItem.java

   1 package be.nikiroo.utils.ui;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Dimension;
   5
   6 import javax.swing.JCheckBox;
   7 import javax.swing.JLabel;
   8 import javax.swing.JPanel;
   9 import javax.swing.JTextField;
  10
  11 import be.nikiroo.utils.resources.Bundle;
  12 import be.nikiroo.utils.resources.Meta.Format;
  13 import be.nikiroo.utils.resources.MetaInfo;
  14
  15 /**
  16  * A graphical item that reflect a configuration option from the given
  17  * {@link Bundle}.
  18  *
  19  * @author niki
  20  *
  21  * @param <E>
  22  *            the type of {@link Bundle} to edit
  23  */
  24 public class ConfigItem<E extends Enum<E>> extends JPanel {
  25         private static final long serialVersionUID = 1L;
  26
  27         public ConfigItem(final MetaInfo<E> info) {
  28                 this.setLayout(new BorderLayout());
  29
  30                 if (info.getFormat() == Format.BOOLEAN) {
  31                         final JCheckBox field = new JCheckBox();
  32                         field.setToolTipText(info.getDescription());
  33                         Boolean state = info.getBoolean();
  34                         if (state == null) {
  35                                 info.getDefaultBoolean();
  36                         }
  37
  38                         // Should not happen!
  39                         if (state == null) {
  40                                 System.err
  41                                                 .println("No default value given for BOOLEAN parameter \""
  42                                                                 + info.getName()
  43                                                                 + "\", we consider it is FALSE");
  44                                 state = false;
  45                         }
  46
  47                         field.setSelected(state);
  48
  49                         info.addReloadedListener(new Runnable() {
  50                                 @Override
  51                                 public void run() {
  52                                         Boolean state = info.getBoolean();
  53                                         if (state == null) {
  54                                                 info.getDefaultBoolean();
  55                                         }
  56                                         if (state == null) {
  57                                                 state = false;
  58                                         }
  59
  60                                         field.setSelected(state);
  61                                 }
  62                         });
  63                         info.addSaveListener(new Runnable() {
  64                                 @Override
  65                                 public void run() {
  66                                         info.setBoolean(field.isSelected());
  67                                 }
  68                         });
  69
  70                         field.setText(info.getName());
  71                         this.add(field, BorderLayout.CENTER);
  72                 } else {
  73                         final JTextField field = new JTextField();
  74                         field.setToolTipText(info.getDescription());
  75                         field.setText(info.getString());
  76
  77                         info.addReloadedListener(new Runnable() {
  78                                 @Override
  79                                 public void run() {
  80                                         field.setText(info.getString());
  81                                 }
  82                         });
  83                         info.addSaveListener(new Runnable() {
  84                                 @Override
  85                                 public void run() {
  86                                         info.setString(field.getText());
  87                                 }
  88                         });
  89
  90                         this.add(label(info.getName()), BorderLayout.WEST);
  91                         this.add(field, BorderLayout.CENTER);
  92                 }
  93         }
  94
  95         /**
  96          * Create a label which width is constrained in lock steps.
  97          *
  98          * @param text
  99          *            the text of the label
 100          *
 101          * @return the label
 102          */
 103         private JLabel label(String text) {
 104                 final JLabel label = new JLabel(text);
 105
 106                 Dimension ps = label.getPreferredSize();
 107                 if (ps == null) {
 108                         ps = label.getSize();
 109                 }
 110
 111                 int w = ps.width;
 112                 int step = 80;
 113                 for (int i = 2 * step; i < 10 * step; i += step) {
 114                         if (w < i) {
 115                                 w = i;
 116                                 break;
 117                         }
 118                 }
 119
 120                 ps.width = w;
 121                 label.setSize(ps);
 122                 label.setPreferredSize(ps);
 123
 124                 return label;
 125         }
 126 }