src/recipientedit.cpp

   1 /*
   2   Copyright 2013-2015 Mats Sjöberg
   3
   4   This file is part of the Pumpa programme.
   5
   6   Pumpa is free software: you can redistribute it and/or modify it
   7   under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   Pumpa is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14   License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with Pumpa.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "recipientedit.h"
  21
  22 #include <QStringListModel>
  23 #include <QDebug>
  24
  25 //------------------------------------------------------------------------------
  26
  27 RecipientEdit::RecipientEdit(QWidget* parent) :
  28   QLineEdit(parent),
  29   m_completer(NULL)
  30 {
  31 }
  32
  33 //------------------------------------------------------------------------------
  34
  35 void RecipientEdit::setChoices(QStringList choices) {
  36   m_choices = choices;
  37   if (m_completer)
  38     delete m_completer;
  39
  40   m_completer = new QCompleter(this);
  41   m_completer->setWidget(this);
  42
  43   m_completer->setCaseSensitivity(Qt::CaseInsensitive);
  44   QStringListModel* model = new QStringListModel(choices);
  45   m_completer->setModel(model);
  46   //m_completer->setCompletionMode(QCompleter::PopupCompletion);
  47
  48   connect(m_completer, SIGNAL(activated(QString)),
  49           this, SLOT(insertCompletion(QString)));
  50 }
  51
  52 //------------------------------------------------------------------------------
  53
  54 void RecipientEdit::keyPressEvent(QKeyEvent* event) {
  55   int key = event->key();
  56
  57   QLineEdit::keyPressEvent(event);
  58
  59   QPair<int, int> wordPos = wordPosAtCursor();
  60   QString completionPrefix = text().mid(wordPos.first, wordPos.second);
  61   qDebug() << "completionPrefix" << completionPrefix;
  62
  63   if (completionPrefix != m_completer->completionPrefix()) {
  64     m_completer->setCompletionPrefix(completionPrefix);
  65     m_completer->popup()->setCurrentIndex(m_completer->completionModel()->index(0, 0));
  66   }
  67
  68   if (!event->text().isEmpty() && completionPrefix.length() > 2) {
  69     m_completer->complete();
  70   }
  71 }
  72
  73 //------------------------------------------------------------------------------
  74
  75 QPair<int, int> RecipientEdit::wordPosAtCursor() {
  76   static QRegExp whitespace("\\s+");
  77
  78   int cur = cursorPosition();
  79   QString txt = text();
  80
  81   int startPos = cur ? txt.lastIndexOf(whitespace, cur-1) + 1 : 0;
  82
  83   int endPos = txt.indexOf(whitespace, cur);
  84   if (endPos == -1)
  85     endPos = txt.count();
  86
  87   int len = endPos - startPos;
  88
  89   return qMakePair(startPos, len);
  90 }
  91
  92 //------------------------------------------------------------------------------
  93
  94 void RecipientEdit::insertCompletion(QString completion) {
  95   QPair<int, int> wordPos = wordPosAtCursor();
  96   setSelection(wordPos.first, wordPos.second);
  97   insert(completion);
  98 }