src/histlineedit.cpp

   1 /*
   2   Copyright (c) 2006 Paolo Capriotti <p.capriotti@sns.it>
   3             (c) 2006 Maurizio Monge <maurizio.monge@kdemail.net>
   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
  11 #include <QKeyEvent>
  12 #include "histlineedit.h"
  13
  14 HistLineEdit::HistLineEdit(QWidget* parent)
  15 : QLineEdit(parent) {
  16   current = 0;
  17
  18   connect(this, SIGNAL(returnPressed()), this, SLOT(updateHistory()));
  19  }
  20
  21 void HistLineEdit::keyPressEvent(QKeyEvent* e) {
  22   if (echoMode() == Password) {
  23     e->ignore();
  24     QLineEdit::keyPressEvent(e);
  25     return;
  26   }
  27
  28   if (e->key() == Qt::Key_Up) {
  29     if (current > 0)
  30       setHistoryText(current-1);
  31   }
  32   else if (e->key() == Qt::Key_Down) {
  33     if (current < history.size())
  34       setHistoryText(current+1);
  35   }
  36   else if (e->key() == Qt::Key_PageUp)
  37     emit pageUp();
  38   else if (e->key() == Qt::Key_PageDown)
  39     emit pageDown();
  40   else e->ignore();
  41
  42   QLineEdit::keyPressEvent(e);
  43 }
  44
  45 void HistLineEdit::setHistoryText(uint index) {
  46   if (current == history.size())
  47     buffer = text();
  48
  49   if (index == history.size())
  50     setText(buffer);
  51   else
  52     setText(history[index]);
  53
  54   current = index;
  55 }
  56
  57 void HistLineEdit::updateHistory() {
  58   if (echoMode() != Password) {
  59
  60     history.push_back(text());
  61     buffer = "";
  62     current = history.size();
  63   }
  64
  65   emit receivedInput(text());
  66   setText("");
  67 }