gui/channelwidgetinput.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005/06 by The Quassel Team                             *
   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) any later version.                                   *
   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 "channelwidgetinput.h"
  22 #include <QCompleter>
  23
  24 ChannelWidgetInput::ChannelWidgetInput(QWidget *parent) : QLineEdit(parent) {
  25   idx = 0;
  26   tabMode = false;
  27   connect(this, SIGNAL(returnPressed()), this, SLOT(enter()));
  28 }
  29
  30 void ChannelWidgetInput::keyPressEvent(QKeyEvent * event) {
  31   if(event->key() == Qt::Key_Tab) {
  32     // Tabcomplete
  33     if(text().length() > 0) {
  34       if (not tabMode) {
  35         QString tabAbbrev = text().left(cursorPosition()).section(' ',-1,-1);
  36         tabCompleteList.clear();
  37         foreach(QString nick, nickList) {
  38           if(nick.toLower().startsWith(tabAbbrev.toLower())) {
  39             tabCompleteList << nick;
  40           }
  41         }
  42
  43         tabCompleteList.sort();
  44         lastCompletionLength = tabAbbrev.length();
  45         tabMode = true;
  46         nextCompletion = tabCompleteList.begin();
  47       }
  48       if (nextCompletion != tabCompleteList.end()) {
  49         for (int i = 0; i < lastCompletionLength; i++) {
  50           backspace();
  51         }
  52         insert(*nextCompletion);
  53         lastCompletionLength = nextCompletion->length();
  54         nextCompletion++;
  55       } else if (tabCompleteList.end() != tabCompleteList.begin()) {
  56         nextCompletion = tabCompleteList.begin();
  57       }
  58     }
  59     event->accept();
  60
  61   } else {
  62     tabMode = false;
  63     if(event->key() == Qt::Key_Up) {
  64       if(idx > 0) { idx--; setText(history[idx]); }
  65       event->accept();
  66     } else if(event->key() == Qt::Key_Down) {
  67       if(idx < history.count()) idx++;
  68       if(idx < history.count()) setText(history[idx]);
  69       else setText("");
  70       event->accept();
  71     } else {
  72       QLineEdit::keyPressEvent(event);
  73     }
  74   }
  75 }
  76
  77 bool ChannelWidgetInput::event(QEvent *e) {
  78   if(e->type() == QEvent::KeyPress) {
  79     keyPressEvent(dynamic_cast<QKeyEvent*>(e));
  80     return true;
  81   }
  82   return QLineEdit::event(e);
  83 }
  84
  85 void ChannelWidgetInput::enter() {
  86   history << text();
  87   idx = history.count();
  88 }
  89
  90 void ChannelWidgetInput::updateNickList(QStringList l) {
  91   nickList = l;
  92 }