+++ /dev/null
-package be.nikiroo.utils.resources;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-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>> implements Iterable<MetaInfo<E>> {
- private final Bundle<E> bundle;
- private final E id;
-
- private Meta meta;
- private List<MetaInfo<E>> children = new ArrayList<MetaInfo<E>>();
-
- private String value;
- private List<Runnable> reloadedListeners = new ArrayList<Runnable>();
- private List<Runnable> saveListeners = new ArrayList<Runnable>();
-
- private String name;
- private String description;
-
- private boolean dirty;
-
- /**
- * Create a new {@link MetaInfo} from a value (without children).
- * <p>
- * For instance, you can call
- * <tt>new MetaInfo(Config.class, configBundle, Config.MY_VALUE)</tt>.
- *
- * @param type
- * the type of enum the value is
- * @param bundle
- * the bundle this value belongs to
- * @param id
- * the value itself
- */
- 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 (description == null) {
- description = "";
- }
- }
-
- String name = idToName(id, null);
-
- // Special rules for groups:
- if (meta.group()) {
- String groupName = description.split("\n")[0];
- description = description.substring(groupName.length()).trim();
- if (!groupName.isEmpty()) {
- name = groupName;
- }
- }
-
- if (meta.def() != null && !meta.def().isEmpty()) {
- if (!description.isEmpty()) {
- description += "\n\n";
- }
- description += "(Default value: " + meta.def() + ")";
- }
-
- this.name = name;
- this.description = description;
-
- reload();
- }
-
- /**
- * For normal items, this is the name of this item, deduced from its ID (or
- * in other words, it is the ID but presented in a displayable form).
- * <p>
- * For group items, this is the first line of the description if it is not
- * empty (else, it is the ID in the same way as normal items).
- * <p>
- * Never NULL.
- *
- *
- * @return the name, never NULL
- */
- public String getName() {
- return name;
- }
-
- /**
- * A description for this item: what it is or does, how to explain that item
- * to the user including what can be used here (i.e., %s = file name, %d =
- * file size...).
- * <p>
- * For group, the first line ('\\n'-separated) will be used as a title while
- * the rest will be the description.
- * <p>
- * If a default value is known, it will be specified here, too.
- * <p>
- * Never NULL.
- *
- * @return the description, not NULL
- */
- public String getDescription() {
- return description;
- }
-
- /**
- * The format this item is supposed to follow
- *
- * @return the format
- */
- public Format getFormat() {
- return meta.format();
- }
-
- /**
- * The allowed list of values that a {@link Format#FIXED_LIST} item is
- * allowed to be, or a list of suggestions for {@link Format#COMBO_LIST}
- * items. Also works for {@link Format#LOCALE}.
- * <p>
- * Will always allow an empty string in addition to the rest.
- *
- * @return the list of values
- */
- public String[] getAllowedValues() {
- String[] list = meta.list();
-
- String[] withEmpty = new String[list.length + 1];
- withEmpty[0] = "";
- for (int i = 0; i < list.length; i++) {
- withEmpty[i + 1] = list[i];
- }
-
- return withEmpty;
- }
-
- /**
- * Return all the languages known by the program for this bundle.
- * <p>
- * This only works for {@link TransBundle}, and will return an empty list if
- * this is not a {@link TransBundle}.
- *
- * @return the known language codes
- */
- public List<String> getKnownLanguages() {
- if (bundle instanceof TransBundle) {
- return ((TransBundle<E>) bundle).getKnownLanguages();
- }
-
- return new ArrayList<String>();
- }
-
- /**
- * This item is a comma-separated list of values instead of a single value.
- * <p>
- * The list items are separated by a comma, each surrounded by
- * double-quotes, with backslashes and double-quotes escaped by a backslash.
- * <p>
- * Example: <tt>"un", "deux"</tt>
- *
- * @return TRUE if it is
- */
- public boolean isArray() {
- return meta.array();
- }
-
- /**
- * A manual flag to specify if the data has been changed or not, which can
- * be used by {@link MetaInfo#save(boolean)}.
- *
- * @return TRUE if it is dirty (if it has changed)
- */
- public boolean isDirty() {
- return dirty;
- }
-
- /**
- * A manual flag to specify that the data has been changed, which can be
- * used by {@link MetaInfo#save(boolean)}.
- */
- public void setDirty() {
- this.dirty = true;
- }
-
- /**
- * The number of items in this item if it {@link MetaInfo#isArray()}, or -1
- * if not.
- *
- * @param useDefaultIfEmpty
- * check the size of the default list instead if the list is
- * empty
- *
- * @return -1 or the number of items
- */
- public int getListSize(boolean useDefaultIfEmpty) {
- if (!isArray()) {
- return -1;
- }
-
- return BundleHelper.getListSize(getString(-1, useDefaultIfEmpty));
- }
-
- /**
- * This item is only used as a group, not as an option.
- * <p>
- * For instance, you could have LANGUAGE_CODE as a group for which you won't
- * use the value in the program, and LANGUAGE_CODE_FR, LANGUAGE_CODE_EN
- * inside for which the value must be set.
- *
- * @return TRUE if it is a group
- */
- public boolean isGroup() {
- return meta.group();
- }
-
- /**
- * The value stored by this item, as a {@link String}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- * @param useDefaultIfEmpty
- * use the default value instead of NULL if the setting is not
- * set
- *
- * @return the value
- */
- public String getString(int item, boolean useDefaultIfEmpty) {
- if (isArray() && item >= 0) {
- List<String> values = BundleHelper.parseList(value, -1);
- if (values != null && item < values.size()) {
- return values.get(item);
- }
-
- if (useDefaultIfEmpty) {
- return getDefaultString(item);
- }
-
- return null;
- }
-
- if (value == null && useDefaultIfEmpty) {
- return getDefaultString(item);
- }
-
- return value;
- }
-
- /**
- * The default value of this item, as a {@link String}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- *
- * @return the default value
- */
- public String getDefaultString(int item) {
- if (isArray() && item >= 0) {
- List<String> values = BundleHelper.parseList(meta.def(), item);
- if (values != null && item < values.size()) {
- return values.get(item);
- }
-
- return null;
- }
-
- return meta.def();
- }
-
- /**
- * The value stored by this item, as a {@link Boolean}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- * @param useDefaultIfEmpty
- * use the default value instead of NULL if the setting is not
- * set
- *
- * @return the value
- */
- public Boolean getBoolean(int item, boolean useDefaultIfEmpty) {
- return BundleHelper
- .parseBoolean(getString(item, useDefaultIfEmpty), -1);
- }
-
- /**
- * The default value of this item, as a {@link Boolean}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- *
- * @return the default value
- */
- public Boolean getDefaultBoolean(int item) {
- return BundleHelper.parseBoolean(getDefaultString(item), -1);
- }
-
- /**
- * The value stored by this item, as a {@link Character}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- * @param useDefaultIfEmpty
- * use the default value instead of NULL if the setting is not
- * set
- *
- * @return the value
- */
- public Character getCharacter(int item, boolean useDefaultIfEmpty) {
- return BundleHelper.parseCharacter(getString(item, useDefaultIfEmpty),
- -1);
- }
-
- /**
- * The default value of this item, as a {@link Character}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- *
- * @return the default value
- */
- public Character getDefaultCharacter(int item) {
- return BundleHelper.parseCharacter(getDefaultString(item), -1);
- }
-
- /**
- * The value stored by this item, as an {@link Integer}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- * @param useDefaultIfEmpty
- * use the default value instead of NULL if the setting is not
- * set
- *
- * @return the value
- */
- public Integer getInteger(int item, boolean useDefaultIfEmpty) {
- return BundleHelper
- .parseInteger(getString(item, useDefaultIfEmpty), -1);
- }
-
- /**
- * The default value of this item, as an {@link Integer}.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- *
- * @return the default value
- */
- public Integer getDefaultInteger(int item) {
- return BundleHelper.parseInteger(getDefaultString(item), -1);
- }
-
- /**
- * The value stored by this item, as a colour (represented here as an
- * {@link Integer}) if it represents a colour, or NULL if it doesn't.
- * <p>
- * The returned colour value is an ARGB value.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- * @param useDefaultIfEmpty
- * use the default value instead of NULL if the setting is not
- * set
- *
- * @return the value
- */
- public Integer getColor(int item, boolean useDefaultIfEmpty) {
- return BundleHelper.parseColor(getString(item, useDefaultIfEmpty), -1);
- }
-
- /**
- * The default value stored by this item, as a colour (represented here as
- * an {@link Integer}) if it represents a colour, or NULL if it doesn't.
- * <p>
- * The returned colour value is an ARGB value.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- *
- * @return the value
- */
- public Integer getDefaultColor(int item) {
- return BundleHelper.parseColor(getDefaultString(item), -1);
- }
-
- /**
- * A {@link String} representation of the list of values.
- * <p>
- * The list of values is comma-separated and each value is surrounded by
- * double-quotes; backslashes and double-quotes are escaped by a backslash.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- * @param useDefaultIfEmpty
- * use the default value instead of NULL if the setting is not
- * set
- *
- * @return the value
- */
- public List<String> getList(int item, boolean useDefaultIfEmpty) {
- return BundleHelper.parseList(getString(item, useDefaultIfEmpty), -1);
- }
-
- /**
- * A {@link String} representation of the default list of values.
- * <p>
- * The list of values is comma-separated and each value is surrounded by
- * double-quotes; backslashes and double-quotes are escaped by a backslash.
- *
- * @param item
- * the item number to get for an array of values, or -1 to get
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- *
- * @return the value
- */
- public List<String> getDefaultList(int item) {
- return BundleHelper.parseList(getDefaultString(item), -1);
- }
-
- /**
- * The value stored by this item, as a {@link String}.
- *
- * @param value
- * the new value
- * @param item
- * the item number to set for an array of values, or -1 to set
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- */
- public void setString(String value, int item) {
- if (isArray() && item >= 0) {
- this.value = BundleHelper.fromList(this.value, value, item);
- } else {
- this.value = value;
- }
- }
-
- /**
- * The value stored by this item, as a {@link Boolean}.
- *
- * @param value
- * the new value
- * @param item
- * the item number to set for an array of values, or -1 to set
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- */
- public void setBoolean(boolean value, int item) {
- setString(BundleHelper.fromBoolean(value), item);
- }
-
- /**
- * The value stored by this item, as a {@link Character}.
- *
- * @param value
- * the new value
- * @param item
- * the item number to set for an array of values, or -1 to set
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- */
- public void setCharacter(char value, int item) {
- setString(BundleHelper.fromCharacter(value), item);
- }
-
- /**
- * The value stored by this item, as an {@link Integer}.
- *
- * @param value
- * the new value
- * @param item
- * the item number to set for an array of values, or -1 to set
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- */
- public void setInteger(int value, int item) {
- setString(BundleHelper.fromInteger(value), item);
- }
-
- /**
- * The value stored by this item, as a colour (represented here as an
- * {@link Integer}) if it represents a colour, or NULL if it doesn't.
- * <p>
- * The colour value is an ARGB value.
- *
- * @param value
- * the value
- * @param item
- * the item number to set for an array of values, or -1 to set
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- */
- public void setColor(int value, int item) {
- setString(BundleHelper.fromColor(value), item);
- }
-
- /**
- * A {@link String} representation of the default list of values.
- * <p>
- * The list of values is comma-separated and each value is surrounded by
- * double-quotes; backslashes and double-quotes are escaped by a backslash.
- *
- * @param value
- * the {@link String} representation
- * @param item
- * the item number to set for an array of values, or -1 to set
- * the whole value (has no effect if {@link MetaInfo#isArray()}
- * is FALSE)
- */
- public void setList(List<String> value, int item) {
- setString(BundleHelper.fromList(value), item);
- }
-
- /**
- * Reload the value from the {@link Bundle}, so the last value that was
- * saved will be used.
- */
- public void reload() {
- if (bundle.isSet(id, false)) {
- value = bundle.getString(id);
- } else {
- value = null;
- }
-
- // Copy the list so we can create new listener in a listener
- for (Runnable listener : new ArrayList<Runnable>(reloadedListeners)) {
- try {
- listener.run();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- }
-
- /**
- * Add a listener that will be called <b>after</b> a reload operation.
- * <p>
- * You could use it to refresh the UI for instance.
- *
- * @param listener
- * the listener
- */
- public void addReloadedListener(Runnable listener) {
- reloadedListeners.add(listener);
- }
-
- /**
- * Save the current value to the {@link Bundle}.
- * <p>
- * Note that listeners will be called <b>before</b> the dirty check and
- * <b>before</b> saving the value.
- *
- * @param onlyIfDirty
- * only save the data if the dirty flag is set (will reset the
- * dirty flag)
- */
- public void save(boolean onlyIfDirty) {
- // Copy the list so we can create new listener in a listener
- for (Runnable listener : new ArrayList<Runnable>(saveListeners)) {
- try {
- listener.run();
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- if (!onlyIfDirty || isDirty()) {
- bundle.setString(id, value);
- }
- }
-
- /**
- * Add a listener that will be called <b>before</b> a save operation.
- * <p>
- * You could use it to make some modification to the stored value before it
- * is saved.
- *
- * @param listener
- * the listener
- */
- public void addSaveListener(Runnable listener) {
- saveListeners.add(listener);
- }
-
- /**
- * The sub-items if any (if no sub-items, will return an empty list).
- * <p>
- * Sub-items are declared when a {@link Meta} has an ID that starts with the
- * ID of a {@link Meta#group()} {@link MetaInfo}.
- * <p>
- * For instance:
- * <ul>
- * <li>{@link Meta} <tt>MY_PREFIX</tt> is a {@link Meta#group()}</li>
- * <li>{@link Meta} <tt>MY_PREFIX_DESCRIPTION</tt> is another {@link Meta}</li>
- * <li><tt>MY_PREFIX_DESCRIPTION</tt> will be a child of <tt>MY_PREFIX</tt></li>
- * </ul>
- *
- * @return the sub-items if any
- */
- public List<MetaInfo<E>> getChildren() {
- return children;
- }
-
- @Override
- public Iterator<MetaInfo<E>> iterator() {
- return children.iterator();
- }
-
- /**
- * 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>>();
- List<MetaInfo<E>> shadow = new ArrayList<MetaInfo<E>>();
- for (E id : type.getEnumConstants()) {
- MetaInfo<E> info = new MetaInfo<E>(type, bundle, id);
- list.add(info);
- shadow.add(info);
- }
-
- for (int i = 0; i < list.size(); i++) {
- MetaInfo<E> info = list.get(i);
-
- MetaInfo<E> parent = findParent(info, shadow);
- if (parent != null) {
- list.remove(i--);
- parent.children.add(info);
- info.name = idToName(info.id, parent.id);
- }
- }
-
- return list;
- }
-
- /**
- * Find the longest parent of the given {@link MetaInfo}, which means:
- * <ul>
- * <li>the parent is a {@link Meta#group()}</li>
- * <li>the parent Id is a substring of the Id of the given {@link MetaInfo}</li>
- * <li>there is no other parent sharing a substring for this
- * {@link MetaInfo} with a longer Id</li>
- * </ul>
- *
- * @param <E>
- * the kind of enum
- * @param info
- * the info to look for a parent for
- * @param candidates
- * the list of potential parents
- *
- * @return the longest parent or NULL if no parent is found
- */
- static private <E extends Enum<E>> MetaInfo<E> findParent(MetaInfo<E> info,
- List<MetaInfo<E>> candidates) {
- String id = info.id.toString();
- MetaInfo<E> group = null;
- for (MetaInfo<E> pcandidate : candidates) {
- if (pcandidate.isGroup()) {
- String candidateId = pcandidate.id.toString();
- if (!id.equals(candidateId) && id.startsWith(candidateId)) {
- if (group == null
- || group.id.toString().length() < candidateId
- .length()) {
- group = pcandidate;
- }
- }
- }
- }
-
- return group;
- }
-
- static private <E extends Enum<E>> String idToName(E id, E prefix) {
- String name = id.toString();
- if (prefix != null && name.startsWith(prefix.toString())) {
- name = name.substring(prefix.toString().length());
- }
-
- if (name.length() > 0) {
- name = name.substring(0, 1).toUpperCase()
- + name.substring(1).toLowerCase();
- }
-
- name = name.replace("_", " ");
-
- return name.trim();
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff