package open.dolphin.client;
import java.awt.Rectangle;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.prefs.Preferences;
import java.util.regex.Pattern;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTextPane;
import javax.swing.TransferHandler;
import javax.swing.text.BadLocationException;
import javax.swing.tree.DefaultMutableTreeNode;
import open.dolphin.helper.ProxyActionListener;
import open.dolphin.infomodel.ModuleInfoBean;
/**
* KartePane の抽象コードヘルパークラス。
*
* @author Kazyshi Minagawa
*/
public abstract class AbstractCodeHelper {
/** キーワードの境界となる文字 */
static final String[] WORD_SEPARATOR = {" ", " ", "，", "," , "、", "。", "\n", "\t"};
static final String LISTENER_METHOD = "importStamp";
static final Icon icon = GUIConst.ICON_FOLDER_16;
/** 対象の KartePane */
KartePane kartePane;
/** KartePane の JTextPane */
JTextPane textPane;
/** 補完リストメニュー */
JPopupMenu popup;
/** キーワードパターン */
Pattern pattern;
/** キーワードの開始位置 */
int start;
/** キーワードの終了位置 */
int end;
/** ChartMediator */
ChartMediator mediator;
/** 修飾キー */
int MODIFIER;
/**
* Creates a new instance of CodeHelper
*/
public AbstractCodeHelper(KartePane kartePane, ChartMediator mediator) {
this.kartePane = kartePane;
this.mediator = mediator;
this.textPane = kartePane.getTextPane();
Preferences prefs = Preferences.userNodeForPackage(AbstractCodeHelper.class);
String modifier = prefs.get("modifier", "ctrl");
if (modifier.equals("ctrl")) {
MODIFIER = KeyEvent.CTRL_DOWN_MASK;
} else if (modifier.equals("meta")) {
MODIFIER = KeyEvent.META_DOWN_MASK;
}
this.textPane.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
// if ((e.getModifiersEx() == MODIFIER) && e.getKeyCode() == KeyEvent.VK_SPACE) {
if ((e.getModifiersEx() == MODIFIER) && e.getKeyCode() == KeyEvent.VK_ENTER) {
buildAndShowPopup();
}
}
});
}
protected abstract void buildPopup(String text);
protected void buildEntityPopup(String entity) {
//
// 引数の entityに対応する StampTree を取得する
//
StampBoxPlugin stampBox = mediator.getStampBox();
StampTree tree = stampBox.getStampTree(entity);
if (tree == null) {
return;
}
popup = new JPopupMenu();
HashMap<Object, Object> ht = new HashMap<Object, Object>(5, 0.75f);
DefaultMutableTreeNode rootNode = (DefaultMutableTreeNode) tree.getModel().getRoot();
ht.put(rootNode, popup);
Enumeration e = rootNode.preorderEnumeration();
if (e != null) {
e.nextElement(); // consume root
while (e.hasMoreElements()) {
StampTreeNode node = (StampTreeNode) e.nextElement();
if (!node.isLeaf()) {
JMenu subMenu = new JMenu(node.getUserObject().toString());
if (node.getParent() == rootNode) {
JPopupMenu parent = (JPopupMenu) ht.get(node.getParent());
parent.add(subMenu);
ht.put(node, subMenu);
} else {
JMenu parent = (JMenu) ht.get(node.getParent());
parent.add(subMenu);
ht.put(node, subMenu);
}
// 配下の子を全て列挙しJmenuItemにまとめる
JMenuItem item = new JMenuItem(node.getUserObject().toString());
item.setIcon(icon);
subMenu.add(item);
addActionListner(item, node);
} else if (node.isLeaf()) {
ModuleInfoBean info = (ModuleInfoBean) node.getUserObject();
String stampName = info.getStampName();
JMenuItem item = new JMenuItem(stampName);
addActionListner(item, node);
if (node.getParent() == rootNode) {
JPopupMenu parent = (JPopupMenu) ht.get(node.getParent());
parent.add(item);
} else {
JMenu parent = (JMenu) ht.get(node.getParent());
parent.add(item);
}
}
}
}
}
protected void addActionListner(JMenuItem item, StampTreeNode node) {
ActionListener ral = ProxyActionListener.create(this, LISTENER_METHOD,
new Class[]{JComponent.class, TransferHandler.class, LocalStampTreeNodeTransferable.class},
new Object[]{textPane, textPane.getTransferHandler(), new LocalStampTreeNodeTransferable(node)});
item.addActionListener(ral);
}
protected void showPopup() {
if (popup == null || popup.getComponentCount() < 1) {
return;
}
try {
int pos = textPane.getCaretPosition();
Rectangle r = textPane.modelToView(pos);
popup.show (textPane, r.x, r.y);
} catch (BadLocationException e) {
e.printStackTrace(System.err);
}
}
public void importStamp(JComponent comp, TransferHandler handler, LocalStampTreeNodeTransferable tr) {
textPane.setSelectionStart(start);
textPane.setSelectionEnd(end);
textPane.replaceSelection("");
handler.importData(comp, tr);
closePopup();
}
protected void closePopup() {
if (popup != null) {
popup.removeAll();
popup = null;
}
}
/**
* 単語の境界からキャレットの位置までのテキストを取得し、
* 長さがゼロ以上でれば補完メニューをポップアップする。
*/
protected void buildAndShowPopup() {
end = textPane.getCaretPosition();
start = end;
boolean found = false;
while (start > 0) {
start--;
try {
String text = textPane.getText(start, 1);
for (String test : WORD_SEPARATOR) {
if (test.equals(text)) {
found = true;
break;
}
}
if (found) {
start++;
break;
}
} catch (BadLocationException e) {
e.printStackTrace(System.err);
}
}
try {
String str = textPane.getText(start, end - start);
if (str.length() > 0) {
buildPopup(str);
showPopup();
}
} catch (BadLocationException e) {
e.printStackTrace(System.err);
}
}
}