src/uisupport/inputline.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005/06 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
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   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  19  ***************************************************************************/
  20
  21 #include "inputline.h"
  22
  23 #include "tabcompleter.h"
  24
  25 InputLine::InputLine(QWidget *parent)
  26   : QLineEdit(parent),
  27     idx(0),
  28     tabCompleter(new TabCompleter(this))
  29 {
  30   connect(this, SIGNAL(returnPressed()), this, SLOT(on_returnPressed()));
  31   connect(this, SIGNAL(textChanged(QString)), this, SLOT(on_textChanged(QString)));
  32 }
  33
  34 InputLine::~InputLine() {
  35 }
  36
  37 void InputLine::keyPressEvent(QKeyEvent * event) {
  38   if(event->key() == Qt::Key_Up) {
  39     if(idx > 0) { idx--; setText(history[idx]); }
  40     event->accept();
  41   } else if(event->key() == Qt::Key_Down) {
  42     if(idx < history.count()) idx++;
  43     if(idx < history.count()) setText(history[idx]);
  44     else if(!text().isEmpty()) {
  45       history << text();
  46       idx = history.count();
  47       setText("");
  48     }
  49     event->accept();
  50   } else if(event->key() == Qt::Key_Select) {  // for Qtopia
  51     emit returnPressed();
  52     QLineEdit::keyPressEvent(event);
  53   } else {
  54     QLineEdit::keyPressEvent(event);
  55   }
  56
  57 }
  58
  59 void InputLine::on_returnPressed() {
  60   history << text();
  61   idx = history.count();
  62   emit sendText(text());
  63   clear();
  64 }
  65
  66 void InputLine::on_textChanged(QString newText) {
  67   QStringList lineSeperators;
  68   lineSeperators << QString("\r\n")
  69                  << QString('\n')
  70                  << QString('\r');
  71
  72   QString lineSep;
  73   foreach(QString seperator, lineSeperators) {
  74     if(newText.contains(seperator)) {
  75       lineSep = seperator;
  76       break;
  77     }
  78   }
  79
  80   if(lineSep.isEmpty())
  81     return;
  82
  83   if(newText.contains(lineSep)) {
  84     clear();
  85     QString line = newText.section(lineSep, 0, 0);
  86     QString remainder = newText.section(lineSep, 1);
  87     insert(line);
  88     emit returnPressed();
  89     insert(remainder);
  90   }
  91
  92 }
  93