/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            lineedit.cc
 *
 *  Fri Jul 13 12:38:45 CEST 2007
 *  Copyright 2007 Bent Bisballe Nyeng and Lars Bisballe Jensen
 *  deva@aasimon.org and elsenator@gmail.com
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "lineedit.h"
#include <stdio.h>

#include "common.h"

LineEdit::LineEdit(QDomNode &node, MacroWindow *macrowindow)
  : QLineEdit(), Widget(node, macrowindow)
{
  setCommonAttributes(this, node);

  QDomElement elem = node.toElement();

  if(elem.hasAttribute("readonly")) {
    if(elem.attribute("readonly") == "true" || elem.attribute("readonly") == "1") {
      setReadOnly(true);
    } else if(elem.attribute("readonly") == "false" || elem.attribute("readonly") == "0") {
      setReadOnly(false);
    } else {
      printf("Unknown value of readonly: %s\n", elem.attribute("readonly").toStdString().c_str());
    }
  }
  
  connect(this, SIGNAL(textChanged(QString)), this, SLOT(changed()));
  connect(this, SIGNAL(textEdited(QString)), this, SLOT(user_changed()));

  installEventFilter(this); // Detect keyboard input.
}

void LineEdit::changed()
{
  QPalette palette;

  if(isEnabled()) {
    if(regexpValidator()) {
      if(luaValidator()) {
        // valid string
        palette.setBrush(QPalette::Base, QBrush(QColor(255, 255, 255)));
      } else {
        // invalid string
        palette.setBrush(QPalette::Base, QBrush(QColor(200, 230, 200)));
      }
    } else {
      // invalid string
      palette.setBrush(QPalette::Base, QBrush(QColor(230, 200, 200)));
    }
  } else {
    // valid string
    palette.setBrush(QPalette::Base, QBrush(QColor(255, 255, 255)));
  }

  setPalette(palette);
}

void LineEdit::user_changed()
{
  emit wasChanged(); 
}

QString LineEdit::getValue()
{
  return text();
}

void LineEdit::setValue(QString value, QString source)
{
  if(isUserSource(source)) emit wasChanged();

  if(text() == value) setText(value + " "); // Hack to make sure the textChanged signal is emitted.
  setText(value);

  setInitialValue(value);
}

void LineEdit::enable()
{
  setEnabled(true);
}

void LineEdit::disable()
{
  setEnabled(false);
}

bool LineEdit::isDisabled()
{
  return isEnabled() == false;
}

void LineEdit::connectFrom(const char *signal,
                           const QObject *receiver, const char *method)
{
  connect(this, signal, receiver, method);
}

void LineEdit::connectTo(const QObject *sender, const char *signal,
                         const char *method)
{
  connect(sender, signal, this, method);
}

bool LineEdit::setKeyboardFocus()
{
  setFocus();
  return true;
}

void LineEdit::setVisibility(bool visible)
{
  setVisible(visible);
}


#include <QCoreApplication>
bool LineEdit::eventFilter(QObject *, QEvent *event)
{
  if (event->type() == QEvent::KeyPress) {
    QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
    if(keyEvent->key() == Qt::Key_Return ||
       keyEvent->key() == Qt::Key_Enter) {
      QKeyEvent tabevent(QEvent::KeyPress, Qt::Key_Tab, Qt::NoModifier); 
      QCoreApplication::sendEvent(this, &tabevent);
    }
  }
  return false;
}

void LineEdit::changeEvent(QEvent *event)
{
  if(event->type() == QEvent::EnabledChange) {
    changed();
  }
}