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  *
   6  *   it under the terms of the GNU General Public License as published by  *
   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  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  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
  31 #ifdef Q_WS_MAC
  32   bindModifier = Qt::ControlModifier | Qt::AltModifier;
  33   jumpModifier = Qt::ControlModifier;
  34 #else
  35   bindModifier = Qt::ControlModifier;
  36   jumpModifier = Qt::AltModifier;
  37 #endif
  38
  39   connect(this, SIGNAL(returnPressed()), this, SLOT(on_returnPressed()));
  40   connect(this, SIGNAL(textChanged(QString)), this, SLOT(on_textChanged(QString)));
  41
  42 }
  43
  44 InputLine::~InputLine() {
  45 }
  46
  47 void InputLine::keyPressEvent(QKeyEvent * event) {
  48   if((event->modifiers() == jumpModifier || event->modifiers() == bindModifier) &&
  49      (Qt::Key_0 <= event->key() && event->key() <= Qt::Key_9)) {
  50     event->ignore();
  51     return;
  52   }
  53
  54   if(event->key() == Qt::Key_Tab) { // Tabcomplete
  55     tabCompleter->complete();
  56     event->accept();
  57   } else {
  58     tabCompleter->reset();
  59     if(event->key() == Qt::Key_Up) {
  60       if(idx > 0) { idx--; setText(history[idx]); }
  61       event->accept();
  62     } else if(event->key() == Qt::Key_Down) {
  63       if(idx < history.count()) idx++;
  64       if(idx < history.count()) setText(history[idx]);
  65       else setText("");
  66       event->accept();
  67     } else if(event->key() == Qt::Key_Select) {  // for Qtopia
  68       emit returnPressed();
  69       QLineEdit::keyPressEvent(event);
  70     } else {
  71       QLineEdit::keyPressEvent(event);
  72     }
  73   }
  74 }
  75
  76 void InputLine::on_returnPressed() {
  77   history << text();
  78   idx = history.count();
  79   emit sendText(text());
  80   clear();
  81 }
  82
  83 void InputLine::on_textChanged(QString newText) {
  84   QStringList lineSeperators;
  85   lineSeperators << QString("\r\n")
  86                  << QString('\n')
  87                  << QString('\r');
  88
  89   QString lineSep;
  90   foreach(QString seperator, lineSeperators) {
  91     if(newText.contains(seperator)) {
  92       lineSep = seperator;
  93       break;
  94     }
  95   }
  96
  97   if(lineSep.isEmpty())
  98     return;
  99
 100   if(newText.contains(lineSep)) {
 101     clear();
 102     QString line = newText.section(lineSep, 0, 0);
 103     QString remainder = newText.section(lineSep, 1);
 104     insert(line);
 105     emit returnPressed();
 106     insert(remainder);
 107   }
 108
 109 }
 110