src2/fr/orsay/lri/varna/controlers/ControleurDemoTextField.java

   1 /*
   2  VARNA is a tool for the automated drawing, visualization and annotation of the secondary structure of RNA, designed as a companion software for web servers and databases.
   3  Copyright (C) 2008  Kevin Darty, Alain Denise and Yann Ponty.
   4  electronic mail : Yann.Ponty@lri.fr
   5  paper mail : LRI, bat 490 Université Paris-Sud 91405 Orsay Cedex France
   6
   7  This file is part of VARNA version 3.1.
   8  VARNA version 3.1 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License
   9  as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
  10
  11  VARNA version 3.1 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  12  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  See the GNU General Public License for more details.
  14
  15  You should have received a copy of the GNU General Public License along with VARNA version 3.1.
  16  If not, see http://www.gnu.org/licenses.
  17  */
  18 package fr.orsay.lri.varna.controlers;
  19
  20 import java.awt.Color;
  21 import java.util.ArrayList;
  22 import java.util.Stack;
  23
  24 import javax.swing.event.CaretEvent;
  25 import javax.swing.event.CaretListener;
  26 import javax.swing.text.BadLocationException;
  27 import javax.swing.text.DefaultHighlighter;
  28 import javax.swing.text.Highlighter;
  29
  30 import fr.orsay.lri.varna.applications.VARNAOnlineDemo;
  31 import fr.orsay.lri.varna.exceptions.ExceptionNonEqualLength;
  32
  33 /**
  34  * It controls the sequence and structure text fields and changes their color if
  35  * they have different lengths or unbalanced parentheses.
  36  *
  37  * @author darty
  38  *
  39  */
  40 public class ControleurDemoTextField implements CaretListener {
  41         private VARNAOnlineDemo _vod;
  42         private String _oldSeq, _oldStruct;
  43         private Highlighter _hilit;
  44         private Highlighter.HighlightPainter _painter;
  45         private final Color COLORERROR = Color.RED;
  46         private final Color COLORWARNING = Color.ORANGE;
  47
  48         public ControleurDemoTextField(VARNAOnlineDemo VOD) {
  49                 _vod = VOD;
  50                 _oldSeq = _vod.get_seq().getText();
  51                 _oldStruct = _vod.get_struct().getText();
  52                 _hilit = new DefaultHighlighter();
  53                 _painter = new DefaultHighlighter.DefaultHighlightPainter(Color.BLACK);
  54                 _vod.get_struct().setHighlighter(_hilit);
  55         }
  56
  57         // if there is any change
  58         public void caretUpdate(CaretEvent e) {
  59                 if (_oldStruct != _vod.get_struct().getText()
  60                                 || _oldSeq != _vod.get_seq().getText()) {
  61                         ArrayList<String> infos = new ArrayList<String>();
  62                         _vod.get_info().removeAll();
  63                         _hilit.removeAllHighlights();
  64                         _oldStruct = _vod.get_struct().getText();
  65                         _oldSeq = _vod.get_seq().getText();
  66                         int nbPO = 0, nbPF = 0;
  67                         // compte les parentheses ouvrantes et fermantes
  68                         Stack<Integer> p = new Stack<Integer>();
  69                         boolean pb = false;
  70                         for (int i = 0; i < _vod.get_struct().getText().length(); i++) {
  71                                 if (_vod.get_struct().getText().charAt(i) == '(') {
  72                                         nbPO++;
  73                                         p.push(i);
  74                                 } else if (_vod.get_struct().getText().charAt(i) == ')') {
  75                                         nbPF++;
  76                                         if (p.size() == 0) {
  77                                                 try {
  78                                                         _hilit.addHighlight(i, i + 1, _painter);
  79                                                 } catch (BadLocationException e1) {
  80                                                         _vod.get_varnaPanel().errorDialog(e1);
  81                                                 }
  82                                                 pb = true;
  83                                         } else
  84                                                 p.pop();
  85                                 }
  86                         }
  87
  88                         // si le nombre de parentheses ouvrantes/fermantes est different
  89                         if (pb || p.size() > 0) {
  90                                 // colorie en rouge
  91                                 if (pb) {
  92                                         infos.add("too many closing parentheses");
  93                                 }
  94                                 if (p.size() > 0) {
  95                                         int indice;
  96                                         while (!p.isEmpty()) {
  97                                                 indice = p.pop();
  98                                                 try {
  99                                                         _hilit.addHighlight(indice, indice + 1, _painter);
 100                                                 } catch (BadLocationException e1) {
 101                                                         _vod.get_varnaPanel().errorDialog(e1);
 102                                                 }
 103                                         }
 104                                         infos.add("too many opening parentheses");
 105                                 }
 106                                 _vod.get_info().setForeground(COLORERROR);
 107                                 _vod.get_seq().setForeground(COLORERROR);
 108                                 _vod.get_struct().setForeground(COLORERROR);
 109                         } else {
 110                                 try {
 111                                         // redraw the new RNA
 112                                         _vod.get_varnaPanel().drawRNA(_vod.get_seq().getText(),
 113                                                         _vod.get_struct().getText(),
 114                                                         _vod.get_varnaPanel().getRNA().get_drawMode());
 115                                 } catch (ExceptionNonEqualLength e1) {
 116                                         _vod.get_varnaPanel().errorDialog(e1);
 117                                 }
 118                                 // verifie la longueur de la structure et de la sequence
 119                                 if (_vod.get_seq().getText().length() != _vod.get_struct()
 120                                                 .getText().length()) {
 121                                         // colorie en orange
 122                                         infos.add("different lenghts");
 123                                         _vod.get_seq().setForeground(COLORWARNING);
 124                                         _vod.get_struct().setForeground(COLORWARNING);
 125                                 } else {
 126                                         // sinon colorie en noir
 127                                         _vod.get_seq().setForeground(Color.black);
 128                                         _vod.get_struct().setForeground(Color.black);
 129                                 }
 130                         }
 131                         _vod.get_varnaPanel().getVARNAUI().UIReset();
 132                         String info = new String();
 133                         if (infos.size() != 0) {
 134                                 info += infos.get(0);
 135                                 for (int i = 1; i < infos.size(); i++) {
 136                                         info += ", " + infos.get(i);
 137                                 }
 138                                 info += ".";
 139                         }
 140                         _vod.get_info().setText(info);
 141                 }
 142         }
 143 }