+package be.nikiroo.utils.resources;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import be.nikiroo.utils.resources.Meta.Format;
+
+/**
+ * A graphical item that reflect a configuration option from the given
+ * {@link Bundle}.
+ *
+ * @author niki
+ *
+ * @param <E>
+ * the type of {@link Bundle} to edit
+ */
+public class MetaInfo<E extends Enum<E>> {
+ private final Bundle<E> bundle;
+ private final E id;
+
+ private Meta meta;
+
+ private String value;
+ private List<Runnable> reloadListeners = new ArrayList<Runnable>();
+
+ private String name;
+ private String description;
+
+ public MetaInfo(Class<E> type, Bundle<E> bundle, E id) {
+ this.bundle = bundle;
+ this.id = id;
+
+ try {
+ this.meta = type.getDeclaredField(id.name()).getAnnotation(
+ Meta.class);
+ } catch (NoSuchFieldException e) {
+ } catch (SecurityException e) {
+ }
+
+ // We consider that if a description bundle is used, everything is in it
+
+ String description = null;
+ if (bundle.getDescriptionBundle() != null) {
+ description = bundle.getDescriptionBundle().getString(id);
+ if (description != null && description.trim().isEmpty()) {
+ description = null;
+ }
+ }
+
+ if (description == null) {
+ description = meta.description();
+ if (meta.info() != null && !meta.info().isEmpty()) {
+ description += "\n" + meta.info();
+ }
+ }
+
+ String name = id.toString();
+ if (name.length() > 1) {
+ name = name.substring(0, 1) + name.substring(1).toLowerCase();
+ name = name.replace("_", " ");
+ }
+
+ this.name = name;
+ this.description = description;
+
+ reload();
+ }
+
+ /**
+ * THe name of this item, deduced from its ID.
+ * <p>
+ * In other words, it is the ID but presented in a displayable form.
+ *
+ * @return the name
+ */
+ public String getName() {
+ return name;
+ }
+
+ /**
+ * The description of this item (information to present to the user).
+ *
+ * @return the description
+ */
+ public String getDescription() {
+ return description;
+ }
+
+ public Format getFormat() {
+ return meta.format();
+ }
+
+ /**
+ * The value stored by this item, as a {@link String}.
+ *
+ * @return the value
+ */
+ public String getString() {
+ return value;
+ }
+
+ public String getDefaultString() {
+ return meta.def();
+ }
+
+ public Boolean getBoolean() {
+ return BundleHelper.parseBoolean(getString());
+ }
+
+ public Boolean getDefaultBoolean() {
+ return BundleHelper.parseBoolean(getDefaultString());
+ }
+
+ public Character getCharacter() {
+ return BundleHelper.parseCharacter(getString());
+ }
+
+ public Character getDefaultCharacter() {
+ return BundleHelper.parseCharacter(getDefaultString());
+ }
+
+ public Integer getInteger() {
+ return BundleHelper.parseInteger(getString());
+ }
+
+ public Integer getDefaultInteger() {
+ return BundleHelper.parseInteger(getDefaultString());
+ }
+
+ public Integer getColor() {
+ return BundleHelper.parseColor(getString());
+ }
+
+ public Integer getDefaultColor() {
+ return BundleHelper.parseColor(getDefaultString());
+ }
+
+ public List<String> getList() {
+ return BundleHelper.parseList(getString());
+ }
+
+ public List<String> getDefaultList() {
+ return BundleHelper.parseList(getDefaultString());
+ }
+
+ /**
+ * The value stored by this item, as a {@link String}.
+ *
+ * @param value
+ * the new value
+ */
+ public void setString(String value) {
+ this.value = value;
+ }
+
+ public void setBoolean(boolean value) {
+ setString(BundleHelper.fromBoolean(value));
+ }
+
+ public void setCharacter(char value) {
+ setString(BundleHelper.fromCharacter(value));
+ }
+
+ public void setInteger(int value) {
+ setString(BundleHelper.fromInteger(value));
+ }
+
+ public void setColor(int value) {
+ setString(BundleHelper.fromColor(value));
+ }
+
+ public void setList(List<String> value) {
+ setString(BundleHelper.fromList(value));
+ }
+
+ /**
+ * Reload the value from the {@link Bundle}.
+ */
+ public void reload() {
+ value = bundle.getString(id);
+ for (Runnable listener : reloadListeners) {
+ try {
+ listener.run();
+ } catch (Exception e) {
+ // TODO: error management?
+ e.printStackTrace();
+ }
+ }
+ }
+
+ public void addReloadListener(Runnable listener) {
+ reloadListeners.add(listener);
+ }
+
+ /**
+ * Save the current value to the {@link Bundle}.
+ */
+ public void save() {
+ bundle.setString(id, value);
+ }
+
+ /**
+ * Create a list of {@link MetaInfo}, one for each of the item in the given
+ * {@link Bundle}.
+ *
+ * @param <E>
+ * the type of {@link Bundle} to edit
+ * @param type
+ * a class instance of the item type to work on
+ * @param bundle
+ * the {@link Bundle} to sort through
+ *
+ * @return the list
+ */
+ static public <E extends Enum<E>> List<MetaInfo<E>> getItems(Class<E> type,
+ Bundle<E> bundle) {
+ List<MetaInfo<E>> list = new ArrayList<MetaInfo<E>>();
+ for (E id : type.getEnumConstants()) {
+ list.add(new MetaInfo<E>(type, bundle, id));
+ }
+
+ return list;
+ }
+
+ // TODO: by groups, a-là Authors/Sources
+}