New: ConfigEditor, UI to configure a bundle

[nikiroo-utils.git] / src / be / nikiroo / utils / ui / ConfigEditor.java

diff --git a/src/be/nikiroo/utils/ui/ConfigEditor.java b/src/be/nikiroo/utils/ui/ConfigEditor.java
new file mode 100644 (file)
index 0000000..6b820bb
--- /dev/null
+++ b/src/be/nikiroo/utils/ui/ConfigEditor.java
@@ -0,0 +1,102 @@
+package be.nikiroo.utils.ui;
+
+import java.awt.BorderLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.util.List;
+
+import javax.swing.BoxLayout;
+import javax.swing.JButton;
+import javax.swing.JPanel;
+import javax.swing.border.EmptyBorder;
+
+import be.nikiroo.utils.resources.Bundle;
+
+/**
+ * A configuration panel for a {@link Bundle}.
+ * <p>
+ * All the items in the given {@link Bundle} will be displayed in editable
+ * controls, with options to Save, Reset and/or Reset to the application default
+ * values.
+ * 
+ * @author niki
+ *
+ * @param <E>
+ *            the type of {@link Bundle} to edit
+ */
+public class ConfigEditor<E extends Enum<E>> extends JPanel {
+       private static final long serialVersionUID = 1L;
+       private List<ConfigItem<E>> items;
+
+       /**
+        * Create a new {@link ConfigEditor} for this {@link Bundle}.
+        * 
+        * @param type
+        *            a class instance of the item type to work on
+        * @param bundle
+        *            the {@link Bundle} to sort through
+        */
+       public ConfigEditor(Class<E> type, final Bundle<E> bundle) {
+               this.setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
+
+               items = ConfigItem.getItems(type, bundle);
+               for (ConfigItem<E> item : items) {
+                       this.add(item);
+               }
+
+               addButton("Reset", new ActionListener() {
+                       public void actionPerformed(ActionEvent e) {
+                               for (ConfigItem<E> item : items) {
+                                       item.reload();
+                               }
+                       }
+               });
+
+               addButton("Default", new ActionListener() {
+                       public void actionPerformed(ActionEvent e) {
+                               Object snap = bundle.takeSnapshot();
+                               bundle.reload(true);
+                               for (ConfigItem<E> item : items) {
+                                       item.reload();
+                               }
+                               bundle.reload(false);
+                               bundle.restoreSnapshot(snap);
+                       }
+               });
+
+               addButton("Save", new ActionListener() {
+                       public void actionPerformed(ActionEvent e) {
+                               for (ConfigItem<E> item : items) {
+                                       item.save();
+                               }
+
+                               try {
+                                       bundle.updateFile();
+                               } catch (IOException e1) {
+                                       e1.printStackTrace();
+                               }
+                       }
+               });
+       }
+
+       /**
+        * Add an action button for this action.
+        * 
+        * @param title
+        *            the action title
+        * @param listener
+        *            the action
+        */
+       private void addButton(String title, ActionListener listener) {
+               JButton button = new JButton(title);
+               button.addActionListener(listener);
+
+               JPanel panel = new JPanel();
+               panel.setLayout(new BorderLayout());
+               panel.setBorder(new EmptyBorder(2, 10, 2, 10));
+               panel.add(button, BorderLayout.CENTER);
+
+               this.add(panel);
+       }
+}