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/* XLogo4Schools - A Logo Interpreter specialized for use in schools, based on XLogo by Lo�c Le Coq
* Copyright (C) 2013 Marko Zivkovic
*
* Contact Information: marko88zivkovic at gmail dot com
*
* This program 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 2 of the License, or (at your option)
* any later version. This program 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 this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*
* This Java source code belongs to XLogo4Schools, written by Marko Zivkovic
* during his Bachelor thesis at the computer science department of ETH Z�rich,
* in the year 2013 and/or during future work.
*
* It is a reengineered version of XLogo written by Lo�c Le Coq, published
* under the GPL License at http://xlogo.tuxfamily.org/
*
* Contents of this file were initially written by Lo�c Le Coq,
* modifications, extensions, refactorings might have been applied by Marko Zivkovic
*/
package xlogo.gui;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
import javax.swing.event.*;
import javax.swing.text.BadLocationException;
import java.awt.Color;
import xlogo.StyledDocument.DocumentLogoCommande;
import xlogo.storage.WSManager;
import xlogo.storage.workspace.WorkspaceConfig;
import xlogo.Application;
/**
* Title : XLogo
* Description : XLogo is an interpreter for the Logo
* programming language
*
* @author Loïc Le Coq
*/
public class ZoneCommande extends JTextPane implements CaretListener
{
private static final long serialVersionUID = 1L;
private DocumentLogoCommande dlc;
// Si la correspondance entre parenthese ou crochets est activée
private boolean active = false;
// Dernière position allumée
private int[] position = new int[2];
public ZoneCommande(Application cadre)
{
dlc = new DocumentLogoCommande(cadre);
this.setBackground(Color.WHITE);
setDocument(dlc);
addCaretListener(this);
}
class verif_parenthese implements Runnable
{
int pos;
verif_parenthese(int pos)
{
this.pos = pos;
}
public void run()
{
if (active)
{
active = false;
int debut = position[0];
int fin = position[0];
if (debut != -1)
{
if (debut > 0)
debut--;
if (fin < dlc.getLength())
fin++;
try
{
String content = dlc.getText(0, dlc.getLength());
// System.out.println(debut+" "+fin);
dlc.colore(content, debut, fin);
}
catch (BadLocationException e)
{}
}
debut = position[1];
fin = position[1];
if (debut != -1)
{
if (debut > 0)
debut--;
if (fin < dlc.getLength())
debut++;
if (fin < dlc.getLength())
fin++;
try
{
String content = dlc.getText(0, dlc.getLength());
// System.out.println(debut+" "+fin);
dlc.colore(content, debut, fin);
}
catch (BadLocationException e)
{}
}
}
int length = dlc.getLength();
try
{
String content = dlc.getText(pos, length - pos);
int id = -1;
if (length > pos)
{
id = "[]()".indexOf(content.substring(0, 1));
}
if (id > -1 && !TesteBackslash(dlc.getText(0, pos), pos))
{
active = true;
switch (id)
{
case 0:
chercheApres(content, pos, "[", "]");
break;
case 1:
content = getText(0, pos);
chercheAvant(content, pos, "[", "]");
break;
case 2:
chercheApres(content, pos, "(", ")");
break;
case 3:
content = getText(0, pos);
chercheAvant(content, pos, "(", ")");
break;
}
}
}
catch (BadLocationException e1)
{}
}
}
public void caretUpdate(CaretEvent e)
{
int pos = e.getDot();
if (WSManager.getWorkspaceConfig().isSyntaxHighlightingEnabled())
SwingUtilities.invokeLater(new verif_parenthese(pos));
}
// Teste si le caractère précédent est un backslash
private boolean TesteBackslash(String content, int pos)
{
String caractere = "";
if (pos > 0)
caractere = content.substring(pos - 1, pos);
// System.out.println(caractere);
if (caractere.equals("\\"))
return true;
return false;
}
void chercheApres(String content, int pos, String ouv, String fer)
{
boolean continuer = true;
int of_ouvrant;
int of_fermant = 0;
int from_index_ouvrant = 1;
int from_index_fermant = 1;
while (continuer)
{
of_ouvrant = content.indexOf(ouv, from_index_ouvrant);
while (of_ouvrant != -1 && TesteBackslash(content, of_ouvrant))
of_ouvrant = content.indexOf(ouv, of_ouvrant + 1);
of_fermant = content.indexOf(fer, from_index_fermant);
while (of_fermant != -1 && TesteBackslash(content, of_fermant))
{
of_fermant = content.indexOf(fer, of_fermant + 1);
// System.out.println(of_fermant);
}
if (of_fermant == -1)
break;
if (of_ouvrant != -1 && of_ouvrant < of_fermant)
{
from_index_ouvrant = of_ouvrant + 1;
from_index_fermant = of_fermant + 1;
}
else
continuer = false;
;
}
if (of_fermant != -1)
{
dlc.Montre_Parenthese(of_fermant + pos);
position[1] = of_fermant + pos;
}
else
position[1] = -1;
dlc.Montre_Parenthese(pos);
position[0] = pos;
}
void chercheAvant(String content, int pos, String ouv, String fer)
{
boolean continuer = true;
int of_fermant = 0;
int of_ouvrant = 0;
int from_index_ouvrant = pos;
int from_index_fermant = pos;
while (continuer)
{
of_ouvrant = content.lastIndexOf(ouv, from_index_ouvrant);
while (of_ouvrant != -1 && TesteBackslash(content, of_ouvrant))
of_ouvrant = content.lastIndexOf(ouv, of_ouvrant - 1);
of_fermant = content.lastIndexOf(fer, from_index_fermant);
while (of_fermant != -1 && TesteBackslash(content, of_fermant))
of_fermant = content.lastIndexOf(fer, of_fermant - 1);
if (of_ouvrant == -1)
break;
if (of_ouvrant < of_fermant)
{
from_index_ouvrant = of_ouvrant - 1;
from_index_fermant = of_fermant - 1;
}
else
continuer = false;
;
}
if (of_ouvrant != -1)
{
dlc.Montre_Parenthese(of_ouvrant);
position[0] = of_ouvrant;
}
else
position[0] = -1;
dlc.Montre_Parenthese(pos);
position[1] = pos;
}
// Change Syntax Highlighting for the command line
public void initStyles(int c_comment, int sty_comment, int c_primitive, int sty_primitive, int c_parenthese,
int sty_parenthese, int c_operande, int sty_operande)
{
WorkspaceConfig wc = WSManager.getWorkspaceConfig();
dlc.initStyles(wc.getCommentColor(), wc.getCommentStyle(), wc.getPrimitiveColor(), wc.getPrimitiveStyle(),
wc.getBraceColor(), wc.getBraceStyle(), wc.getOperatorColor(), wc.getOperatorStyle());
}
// Enable or disable Syntax Highlighting
public void setColoration(boolean b)
{
dlc.setColoration(b);
}
public void setActive(boolean b)
{
active = b;
}
}
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