284 lines
8.2 KiB
Java
284 lines
8.2 KiB
Java
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/*
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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.util.*;
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import java.awt.Color;
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import java.awt.Insets;
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import javax.swing.*;
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import javax.swing.event.*;
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import javax.swing.text.*;
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import org.jdom.*;
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import org.jdom.output.*;
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//import org.thdl.tib.bibl.shared.*;
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/**
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* An extension of Swing's JPanel that is used to create the display for a
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* text's bibliographic information. The panel is created using the text's information
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* contained in a {@link TibDoc} and then is added or set to the content pane
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* of the main frame which is an {@link TibFrame}.
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*/
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public class TextPane extends JTextPane implements TibConstants
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{
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TiblEdit controller;
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/**
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* <p>
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* This is the <code>TibDoc</code> that is the XML document from which the information for
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* the <code>JTextPane</code>'s document comes. It needs to be here so we can use it functionality
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* to navigate the XML hierarchy and extract certain information.
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* </p>
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*/
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TibDoc tibDoc;
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/**
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* <p>
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* This is a two-dimensional array of {@link org.jdom.Element}s that holds the titles displayed in
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* this text pane, with the strings starting position, and length. It is used to reference the
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* element for editing when the cursor is positioned on a specific title.
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* </p>
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*/
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Object[][] titleRefs;
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int caretPos;
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/**
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* <p>
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* This and the following are static, style constants, i.e. names of the styles
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*</p>
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*/
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public static String REG = "regular";
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public static String HEAD = "header";
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public static String HEAD_ITALIC = "headitalic";
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public static String TEXT_HEAD = "textheader";
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public static String TEXT_HEAD_ITALIC = "textheaderItalic";
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public static String ITALIC = "italic";
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public static String BOLD = "bold";
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public static String ADD = "addition";
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public static String VARIANT = "variant";
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public static String RED = "red";
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public static String SMALL = "small";
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public static String LARGE = "large";
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public void setController(TiblEdit tt)
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{
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controller = tt;
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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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/**
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* <p>
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* This method takes a string array of phrases and a string array of associated style names
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* iterates through them and inserts the strings with their styles one by one into
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* this <code>TextPane</code>'s document.
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* </p>
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*
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* @param <code>String[]</code> - The array of text phrases to be added to the document
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* @param <code>String[]</code> - The array of styles associated with the respective text phrases.
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*/
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public void setTextPane(String[] phrases, String[] styles)
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{
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javax.swing.text.StyledDocument doc = new DefaultStyledDocument();
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setDocument(doc);
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caretPos = 0;
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try {
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for (int i=0; i < phrases.length; i++) {
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int lng = doc.getLength();
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doc.insertString(lng, phrases[i],
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this.getStyle(styles[i]));
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if(phrases[i].indexOf(ENTER_TRANS_PHRASE)>-1 || phrases[i].indexOf(ENTER_NORM_TRANS_PHRASE)>-1) {
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caretPos = doc.getLength();
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}
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}
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} catch (BadLocationException ble) {
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System.err.println("Couldn't insert initial text.");
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}
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if(caretPos > -1) {
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try {
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setCaretPosition(caretPos);
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getCaret().setVisible(true);
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} catch (IllegalArgumentException ia) {System.out.println("Illegal argument in setting caret pos: " + caretPos);}
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} else {
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getCaret().setVisible(false);
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}
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}
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// Document this: it overrides the above, adding a list of elements that are associated with
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// the text runs and returns and {@link ElementList} for referencing.
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public ElementList setTextPane(Vector styleElements)
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{
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javax.swing.text.Document doc = this.getDocument();
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ElementList elemList = new ElementList();
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caretPos=0;
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int len = styleElements.size();
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String phrase = new String();
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String style = new String();
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Iterator it = styleElements.iterator();
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int n = 0;
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while(it.hasNext())
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{
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ElementStyle es = (ElementStyle)it.next();
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phrase = es.getText();
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style = es.getStyle();
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try {
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int lng = doc.getLength();
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int end = lng + phrase.length();
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doc.insertString(lng, phrase, this.getStyle(style));
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elemList.addEntry(lng,end,es);
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if(phrase.indexOf(ENTER_TRANS_PHRASE)>-1 || phrase.indexOf(ENTER_NORM_TRANS_PHRASE)>-1) {
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caretPos = doc.getLength();
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}
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} catch (BadLocationException ble) {
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System.err.println("Couldn't insert initial text.");
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}
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}
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if(caretPos > -1) {
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try {
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setCaretPosition(caretPos);
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getCaret().setVisible(true);
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} catch (IllegalArgumentException ia) {System.out.println("Illegal argument in setting caret pos: " + caretPos);}
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} else {
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getCaret().setVisible(false);
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}
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return elemList;
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}
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/*
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*<p>
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* This method serves to reset the text
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* pane with a blank document with initialized styles ready to open another
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* tibbibl.
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* </p>
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*/
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public void reset()
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{
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setDocument(new DefaultStyledDocument());
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initStyles();
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}
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// Helper Methods
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/**
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* <p>
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* This method initializes the styles used for the given {@link JTextPane}.
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* It adds a regular, italic, bold, small, and large styles, plus styles that
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* change the background color to green, yellow, or red to indicate different
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* types of annotations. Green = addition; yellow = alternative reading or variant;
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* red = omission/deletion.
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* </p>
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*
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* @param <code>JTextPane</code> to which the new styles are added.
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*
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*/
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protected void initStyles() {
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Style def = StyleContext.getDefaultStyleContext().
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getStyle(StyleContext.DEFAULT_STYLE);
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StyleConstants.setFontFamily(def, BASE_FONT_NAME);
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StyleConstants.setFontSize(def,BASE_FONT_SIZE);
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Style regular = this.addStyle(REG, def);
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Style header = this.addStyle(HEAD, regular);
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StyleConstants.setBold(header, true);
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StyleConstants.setUnderline(header, true);
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StyleConstants.setFontSize(header,HEAD_FONT_SIZE);
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Style s = this.addStyle(HEAD_ITALIC, header);
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StyleConstants.setItalic(s, true);
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Style textHeader= this.addStyle(TEXT_HEAD,regular);
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StyleConstants.setBold(textHeader, true);
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StyleConstants.setFontSize(textHeader,TEXT_HEAD_SIZE);
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s = this.addStyle(TEXT_HEAD_ITALIC,textHeader);
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StyleConstants.setItalic(s,true);
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s = this.addStyle(ITALIC, regular);
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StyleConstants.setItalic(s, true);
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s = this.addStyle(BOLD, regular);
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StyleConstants.setBold(s, true);
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s = this.addStyle(ADD,regular);
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StyleConstants.setBackground(s,Color.green);
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s = this.addStyle(VARIANT,regular);
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StyleConstants.setBackground(s,Color.yellow);
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s = this.addStyle(RED,regular);
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StyleConstants.setForeground(s,Color.red);
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s = this.addStyle(SMALL, regular);
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StyleConstants.setFontSize(s, 10);
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s = this.addStyle(LARGE, regular);
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StyleConstants.setFontSize(s, 16);
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}
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public int getOffset()
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{
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return caretPos;
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}
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public int getPreviousParagraphIndex()
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{
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int start = getSelectionStart();
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if(start>-1) {
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String fulltxt = getText();
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int lastP = fulltxt.lastIndexOf("\n",start);
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return lastP;
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}
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return start;
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}
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public JScrollPane getScrollPane()
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{
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JScrollPane jsp = new JScrollPane(this,
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JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
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JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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return jsp;
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}
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// Constructors
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public TextPane(TiblEdit tt)
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{
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super();
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setController(tt);
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initStyles();
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addMouseListener(controller);
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setEditable(false);
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setCaretPosition(0);
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caretPos = 0;
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setMargin(new Insets(10,10,10,10));
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}
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}
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