+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
package jalview.io.cache;
+import jalview.bin.Cache;
+import jalview.util.MessageManager;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
import java.util.ArrayList;
+import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import javax.swing.JComboBox;
+import javax.swing.JMenuItem;
+import javax.swing.JPopupMenu;
import javax.swing.SwingUtilities;
public class JvCacheableInputBox<E> extends JComboBox<String>
private static final long serialVersionUID = 5774610435079326695L;
+ private static final int LEFT_BOARDER_WIDTH = 16;
+
private String cacheKey;
private AppCache appCache;
- public JvCacheableInputBox(String cacheKey)
+ private JPopupMenu popup = new JPopupMenu();
+
+ private JMenuItem menuItemClearCache = new JMenuItem();
+
+ volatile boolean enterWasPressed = false;
+
+ /**
+ * @return flag indicating if the most recent keypress was enter
+ */
+ public boolean wasEnterPressed()
+ {
+ return enterWasPressed;
+ }
+
+ /**
+ * Constructor given the key to cached values, and the (approximate) length in
+ * characters of the input field
+ *
+ * @param newCacheKey
+ * @param length
+ */
+ public JvCacheableInputBox(String newCacheKey, int length)
{
super();
- this.cacheKey = cacheKey;
+ this.cacheKey = newCacheKey;
setEditable(true);
- setPrototypeDisplayValue("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+ addKeyListener(new KeyAdapter()
+ {
+
+ @Override
+ public void keyTyped(KeyEvent e)
+ {
+ enterWasPressed = false;
+ if (e.getKeyCode() == KeyEvent.VK_ENTER)
+ {
+ enterWasPressed = true;
+ }
+ // let event bubble up
+ }
+ });
+ if (length > 0)
+ {
+ StringBuilder sb = new StringBuilder();
+ for (int i = 0; i < length; i++)
+ {
+ sb.append("X");
+ }
+ setPrototypeDisplayValue(sb.toString());
+ }
appCache = AppCache.getInstance();
- appCache.initCache(cacheKey);
+ initCachePopupMenu();
+ initCache(newCacheKey);
updateCache();
}
+ /**
+ * Method for initialising cache items for a given cache key and populating the
+ * in-memory cache with persisted cache items
+ *
+ * @param cacheKey
+ */
+ private void initCache(String cacheKey)
+ {
+ // obtain persisted cache items from properties file as a delimited string
+ String delimitedCacheStr = Cache.getProperty(cacheKey);
+ if (delimitedCacheStr == null || delimitedCacheStr.isEmpty())
+ {
+ return;
+ }
+ // convert delimited cache items to a list of strings
+ List<String> persistedCacheItems = Arrays
+ .asList(delimitedCacheStr.split(AppCache.CACHE_DELIMITER));
+
+ LinkedHashSet<String> foundCacheItems = appCache
+ .getAllCachedItemsFor(cacheKey);
+ if (foundCacheItems == null)
+ {
+ foundCacheItems = new LinkedHashSet<>();
+ }
+ // populate memory cache
+ for (String cacheItem : persistedCacheItems)
+ {
+ foundCacheItems.add(cacheItem);
+ }
+ appCache.putCache(cacheKey, foundCacheItems);
+ }
+
+ /**
+ * Initialise this cache's pop-up menu
+ */
+ private void initCachePopupMenu()
+ {
+ menuItemClearCache.setFont(new java.awt.Font("Verdana", 0, 12));
+ menuItemClearCache
+ .setText(MessageManager.getString("action.clear_cached_items"));
+ menuItemClearCache.addActionListener(new ActionListener()
+ {
+ @Override
+ public void actionPerformed(ActionEvent e)
+ {
+ // System.out.println(">>>>> Clear cache items");
+ setSelectedItem("");
+ appCache.deleteCacheItems(cacheKey);
+ updateCache();
+ }
+ });
+
+ popup.add(menuItemClearCache);
+ setComponentPopupMenu(popup);
+ add(popup);
+ }
/**
* Answers true if input text is an integer
* @param text
* @return
*/
- private boolean isInteger(String text)
+ static boolean isInteger(String text)
{
try
{
@Override
public void run()
{
+ int cacheLimit = Integer.parseInt(appCache.getCacheLimit(cacheKey));
String userInput = getUserInput();
if (userInput != null && !userInput.isEmpty())
{
removeAllItems();
}
Set<String> cacheItems = appCache.getAllCachedItemsFor(cacheKey);
- List<String> reversedCacheItems = new ArrayList<String>();
+ List<String> reversedCacheItems = new ArrayList<>();
reversedCacheItems.addAll(cacheItems);
cacheItems = null;
Collections.reverse(reversedCacheItems);
{
addItem("");
}
+
if (reversedCacheItems != null && !reversedCacheItems.isEmpty())
{
+ LinkedHashSet<String> foundCache = appCache
+ .getAllCachedItemsFor(cacheKey);
+ boolean prune = reversedCacheItems.size() > cacheLimit;
+ int count = 1;
+ boolean limitExceeded = false;
for (String cacheItem : reversedCacheItems)
{
- addItem(cacheItem);
+ limitExceeded = (count++ > cacheLimit);
+ if (prune)
+ {
+ if (limitExceeded)
+ {
+ foundCache.remove(cacheItem);
+ }
+ else
+ {
+ addItem(cacheItem);
+ }
+ }
+ else
+ {
+ addItem(cacheItem);
+ }
}
+ appCache.putCache(cacheKey, foundCache);
}
setSelectedItem(lastSearch.isEmpty() ? "" : lastSearch);
}
});
}
+ /**
+ * This method should be called to persist the in-memory cache when this
+ * components parent frame is closed / exited
+ */
+ public void persistCache()
+ {
+ appCache.persistCache(cacheKey);
+ }
+ /**
+ * Method to obtain input text from the cache box
+ *
+ * @return
+ */
public String getUserInput()
{
- return getEditor().getItem() == null ? "" : getEditor().getItem()
- .toString().trim();
+ return getEditor().getItem() == null ? ""
+ : getEditor().getItem().toString().trim();
}
}
git://source.jalview.org / jalview.git / blobdiff