275 lines
8.8 KiB
Java
275 lines
8.8 KiB
Java
/*
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The contents of this file are subject to the THDL Open Community License
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Version 1.0 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License on the THDL web site
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(http://www.thdl.org/).
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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License for the specific terms governing rights and limitations under the
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License.
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The Initial Developer of this software is the Tibetan and Himalayan Digital
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Library (THDL). Portions created by the THDL are Copyright 2001-2003 THDL.
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All Rights Reserved.
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Contributor(s): ______________________________________.
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*/
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package org.thdl.tib.bibl;
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import java.awt.Color;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.awt.GridLayout;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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//import java.awt.event.WindowAdapter;
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//import java.awt.event.WindowEvent;
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import java.io.File;
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import java.io.FileReader;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.io.IOException;
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import java.net.URL;
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import javax.swing.SwingConstants;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import javax.swing.JFrame;
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import javax.swing.JScrollPane;
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import javax.swing.ScrollPaneConstants;
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import javax.swing.BorderFactory;
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import javax.swing.border.CompoundBorder;
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import javax.swing.border.EmptyBorder;
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import javax.swing.border.LineBorder;
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import javax.swing.text.*;
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/**
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* <p>This class creates a panel that displays all the relevant
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* diacritic characters used in Asian Studies. In the context of
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* TiblEdit, its constructor takes a TibFrame which is its
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* parent. When the mouse is clicked on any diacritic character
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* displayed in DiacriticPanel, it inserts that character at the
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* cursor of the TibFrame's {@link TextPane}. All characters are,
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* of course, in Unicode. The file that is the list of diacritics
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* is dia.dat in the same directory as this class's class file. It
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* is a flat file list of the hexadecimal codes for the Unicode
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* diacritics. These are read and converted into characters by
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* DiacriticPanel and they are displayed in the order they are
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* read. Thus, to reorder, modify, or add diacritics, one needs
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* only to make the appropriate changes to the dia.dat file.</p>
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*
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* @author Than Garson, Tibetan and Himalayan Digital Library */
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public class DiacriticPanel extends JPanel implements TibConstants
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{
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// Attributes
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protected TibFrame frame;
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protected JTextComponent jtc;
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private TiblEdit controller;
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//private StringTokenizer dataSplitter;
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private char chosenChar;
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private boolean hasPicked; // DLC FIXME: unused
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private boolean isGeneral;
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/**
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* Sets the panel's layout, size, and background, and reads in the diacritic data.
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*/
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private void init()
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{
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// Creating content panel to use for frame's content & initialize
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//JPanel charPanel = new JPanel(new BorderLayout());
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setLayout(new GridLayout(0,3));
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setSize(new Dimension(100,450));
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setBackground(Color.white);
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// Split the data, create individual line labels
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try {
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URL url = DiacriticPanel.class.getResource(DIA_DATA);
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if (url == null) {
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System.err.println("Cannot find " + DIA_DATA + "; aborting.");
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System.exit(1);
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}
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InputStreamReader isr = new InputStreamReader(url.openStream());
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BufferedReader br = new BufferedReader(isr);
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String line = br.readLine();
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while(line != null) {
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char diaChar = (char)Long.parseLong(line.trim(),16);
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String diaStr = Character.toString(diaChar);
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JLabel diaLab = getDiaLabel(diaStr);
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this.add(diaLab);
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line = br.readLine();
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}
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br.close();
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} catch (IOException ioe) {
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System.out.println("An IOE caught: " + ioe.getMessage());
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ioe.printStackTrace();
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org.thdl.util.ThdlDebug.noteIffyCode();
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}
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}
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// Accessors
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/**
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* This method takes a character, which is actually a String variable and creates a label
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* with a border and a margin with the supplied character string as the
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* centered text. Adds a MouseListener that is a {@link DiacriticPanel.TiblEditMouseAdapter}. It is called by the {@link #init} method.
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*
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* @param ch - A string variable that is the character associated with this label/button.
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*
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* @return JLabel - the label created.
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*/
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public JLabel getDiaLabel(String ch)
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{
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JLabel lab = new JLabel(ch);
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lab.setFont(DEFAULT_FONT);
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lab.setHorizontalAlignment(SwingConstants.CENTER);
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lab.setBorder(new CompoundBorder(new LineBorder(Color.black),BorderFactory.createEmptyBorder(2,2,2,2)));
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if(isGeneral) {
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lab.addMouseListener(new GenMouseAdapter());
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} else {
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lab.addMouseListener(new TiblEditMouseAdapter());
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}
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return lab;
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}
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public void setChosenChar(char aChar)
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{
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chosenChar = aChar;
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hasPicked = true;
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}
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public char getChosenChar()
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{
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char rValue = chosenChar;
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chosenChar = ' ';
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hasPicked = false;
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return rValue;
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}
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public void setController(TiblEdit te)
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{
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controller = te;
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}
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public TiblEdit getController()
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{
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return controller;
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}
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public void setFrame(TibFrame tf)
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{
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frame = tf;
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}
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public JFrame getFrame()
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{
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return frame;
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}
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public void setJTC(JTextComponent jtextc)
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{
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jtc = jtextc;
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}
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public JTextComponent getJTC()
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{
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return jtc;
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}
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// Constructors
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public DiacriticPanel(boolean isGen, Container cont)
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{
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super();
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isGeneral = isGen;
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if(cont instanceof TibFrame) {
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setFrame((TibFrame)cont);
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} else if(cont instanceof JTextComponent) {
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setJTC((JTextComponent)cont);
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}
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init();
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hasPicked = false;
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}
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public DiacriticPanel(TibFrame tf)
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{
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this(false,tf);
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setFrame(tf);
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setController(tf.getController());
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}
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public DiacriticPanel(JTextComponent jtc)
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{
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this(true,jtc);
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}
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// Inner Classes
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// The Mouse Adapter
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/**
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* <p>
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* This inner class is a MouseAdapter that implements "mousePressed". It is added to a label with a diacritic
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* so that when that label is clicked, the corresponding Unicode diacritic character is inserted in the
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* open document, a {@link TextPane}, at the cursor.
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*</p>
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*/
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private class TiblEditMouseAdapter extends MouseAdapter
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{
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/**
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* <p>
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* This version of mousePressed. Takes the {@link TibFrame} supplied with the DiacriticPanel's constructor
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* and gets its {@link TextPane}. It then inserts the Unicode diacritic character from the source
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* label at the cursor of this text pane.
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* </p>
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*/
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public void mousePressed(MouseEvent me)
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{
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TextPane tp = frame.getTextPane();
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if(tp.isEditable()) {
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JLabel source = (JLabel)me.getSource();
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String dia = source.getText();
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int pos = tp.getCaret().getDot();
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try {
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tp.getDocument().insertString(pos,dia,tp.getCharacterAttributes());
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} catch (BadLocationException ble)
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{
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System.out.println("Bad location exception while inserting diacritic ("
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+pos+")! \n");
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}
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}
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}
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}
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private class GenMouseAdapter extends MouseAdapter
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{
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/**
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* <p>
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* This version of mousePressed. Takes the {@link TibFrame} supplied with the DiacriticPanel's constructor
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* and gets its {@link TextPane}. It then inserts the Unicode diacritic character from the source
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* label at the cursor of this text pane.
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* </p>
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*/
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public void mousePressed(MouseEvent me)
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{
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JLabel source = (JLabel)me.getSource();
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String dia = source.getText();
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jtc.replaceSelection(dia);
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}
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}
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// Main Method for testing
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public static void main(String[] args)
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{/*
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TibFrame tf = new TibFrame("Diacritic Test");
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DiacriticPanel dp = new DiacriticPanel();
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JScrollPane jsp = new JScrollPane(dp,
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ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
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ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
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tf.setContentPane(jsp);
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tf.pack();
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tf.show();*/
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}
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}
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