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

   1 package be.nikiroo.utils.ui;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Color;
   5 import java.awt.event.ActionEvent;
   6 import java.awt.event.ActionListener;
   7 import java.io.IOException;
   8 import java.util.ArrayList;
   9 import java.util.List;
  10
  11 import javax.swing.BoxLayout;
  12 import javax.swing.JButton;
  13 import javax.swing.JComponent;
  14 import javax.swing.JLabel;
  15 import javax.swing.JPanel;
  16 import javax.swing.JScrollPane;
  17 import javax.swing.JTextArea;
  18 import javax.swing.border.EmptyBorder;
  19 import javax.swing.border.TitledBorder;
  20
  21 import be.nikiroo.utils.StringUtils;
  22 import be.nikiroo.utils.resources.Bundle;
  23 import be.nikiroo.utils.resources.MetaInfo;
  24
  25 /**
  26  * A configuration panel for a {@link Bundle}.
  27  * <p>
  28  * All the items in the given {@link Bundle} will be displayed in editable
  29  * controls, with options to Save, Reset and/or Reset to the application default
  30  * values.
  31  *
  32  * @author niki
  33  *
  34  * @param <E>
  35  *            the type of {@link Bundle} to edit
  36  */
  37 public class ConfigEditor<E extends Enum<E>> extends JPanel {
  38         private static final long serialVersionUID = 1L;
  39         private List<MetaInfo<E>> items;
  40
  41         /**
  42          * Create a new {@link ConfigEditor} for this {@link Bundle}.
  43          *
  44          * @param type
  45          *            a class instance of the item type to work on
  46          * @param bundle
  47          *            the {@link Bundle} to sort through
  48          * @param title
  49          *            the title to display before the options
  50          */
  51         public ConfigEditor(Class<E> type, final Bundle<E> bundle, String title) {
  52                 this.setLayout(new BorderLayout());
  53
  54                 JPanel main = new JPanel();
  55                 main.setLayout(new BoxLayout(main, BoxLayout.PAGE_AXIS));
  56                 main.setBorder(new EmptyBorder(5, 5, 5, 5));
  57
  58                 main.add(new JLabel(title));
  59
  60                 items = new ArrayList<MetaInfo<E>>();
  61                 List<MetaInfo<E>> groupedItems = MetaInfo.getItems(type, bundle);
  62                 for (MetaInfo<E> item : groupedItems) {
  63                         // will init this.items
  64                         addItem(main, item, 0);
  65                 }
  66
  67                 JPanel buttons = new JPanel();
  68                 buttons.setLayout(new BoxLayout(buttons, BoxLayout.PAGE_AXIS));
  69                 buttons.setBorder(new EmptyBorder(5, 5, 5, 5));
  70
  71                 buttons.add(createButton("Reset", new ActionListener() {
  72                         @Override
  73                         public void actionPerformed(ActionEvent e) {
  74                                 for (MetaInfo<E> item : items) {
  75                                         item.reload();
  76                                 }
  77                         }
  78                 }));
  79
  80                 buttons.add(createButton("Default", new ActionListener() {
  81                         @Override
  82                         public void actionPerformed(ActionEvent e) {
  83                                 Object snap = bundle.takeSnapshot();
  84                                 bundle.reload(true);
  85                                 for (MetaInfo<E> item : items) {
  86                                         item.reload();
  87                                 }
  88                                 bundle.reload(false);
  89                                 bundle.restoreSnapshot(snap);
  90                         }
  91                 }));
  92
  93                 buttons.add(createButton("Save", new ActionListener() {
  94                         @Override
  95                         public void actionPerformed(ActionEvent e) {
  96                                 for (MetaInfo<E> item : items) {
  97                                         item.save(true);
  98                                 }
  99
 100                                 try {
 101                                         bundle.updateFile();
 102                                 } catch (IOException e1) {
 103                                         e1.printStackTrace();
 104                                 }
 105                         }
 106                 }));
 107
 108                 JScrollPane scroll = new JScrollPane(main);
 109                 scroll.getVerticalScrollBar().setUnitIncrement(16);
 110
 111                 this.add(scroll, BorderLayout.CENTER);
 112                 this.add(buttons, BorderLayout.SOUTH);
 113         }
 114
 115         private void addItem(JPanel main, MetaInfo<E> item, int nhgap) {
 116                 if (item.isGroup()) {
 117                         JPanel bpane = new JPanel(new BorderLayout());
 118                         bpane.setBorder(new TitledBorder(item.getName()));
 119                         JPanel pane = new JPanel();
 120                         pane.setBorder(new EmptyBorder(5, 5, 5, 5));
 121                         pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));
 122
 123                         String info = item.getDescription();
 124                         info = StringUtils.justifyTexts(info, 100);
 125                         if (!info.isEmpty()) {
 126                                 info = info + "\n";
 127                                 JTextArea text = new JTextArea(info);
 128                                 text.setWrapStyleWord(true);
 129                                 text.setOpaque(false);
 130                                 text.setForeground(new Color(100, 100, 180));
 131                                 text.setEditable(false);
 132                                 pane.add(text);
 133                         }
 134
 135                         for (MetaInfo<E> subitem : item) {
 136                                 addItem(pane, subitem, nhgap + 11);
 137                         }
 138                         bpane.add(pane, BorderLayout.CENTER);
 139                         main.add(bpane);
 140                 } else {
 141                         items.add(item);
 142                         main.add(ConfigItem.createItem(item, nhgap));
 143                 }
 144         }
 145
 146         /**
 147          * Add an action button for this action.
 148          *
 149          * @param title
 150          *            the action title
 151          * @param listener
 152          *            the action
 153          */
 154         private JComponent createButton(String title, ActionListener listener) {
 155                 JButton button = new JButton(title);
 156                 button.addActionListener(listener);
 157
 158                 JPanel panel = new JPanel();
 159                 panel.setLayout(new BorderLayout());
 160                 panel.setBorder(new EmptyBorder(2, 10, 2, 10));
 161                 panel.add(button, BorderLayout.CENTER);
 162
 163                 return panel;
 164         }
 165 }