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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            checkgroupbox.cc
 *
 *  Thu Mar 10 10:51:10 CET 2011
 *  Copyright 2011 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  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 "checkgroupbox.h"

#include <QGroupBox>
#include <QCheckBox>

#include <QHBoxLayout>

#include "common.h"
#include "debug.h"

CheckGroupBox::CheckGroupBox(QDomNode &node, MacroWindow *macrowindow)
  : Widget(node, macrowindow)
{
  QDomElement elem = node.toElement();

  type = elem.attribute("type", "framed");
  
  checkbox = NULL;
  groupbox = NULL;

  if(type == "framed") {
    groupbox = new QGroupBox();
    groupbox->setCheckable(true);
    connect(groupbox, SIGNAL(toggled(bool)), this, SLOT(state_change(bool)));

    widget = groupbox;

    setCommonLayout(widget, node);

    addChildren(node, widget->layout());

    if(elem.hasAttribute("caption")) {
      groupbox->setTitle(elem.attribute("caption"));
    }

  } else if(type == "simple") {
    widget = new QWidget();
    widget->setContentsMargins(0,0,0,0);
    QHBoxLayout *l = new QHBoxLayout();
    l->setContentsMargins(0,0,0,0);
    widget->setLayout(l);
    checkbox = new QCheckBox();
    connect(checkbox, SIGNAL(toggled(bool)), this, SLOT(state_change(bool)));
    if(elem.hasAttribute("caption")) {
      checkbox->setText(elem.attribute("caption"));
    }
    l->addWidget(checkbox);
    container = new QWidget();
    l->addWidget(container);

    setCommonLayout(container, node);

    addChildren(node, container->layout());
    container->layout()->setContentsMargins(0,0,0,0);
    

  } else {
    ERROR(checkgroupbox, "Illegal value of attribute 'type'\n");
  }

  setCommonAttributes(widget, node);

  //
  // From CheckBox
  //
  changedByUser = true;
  
  if(elem.hasAttribute("truevalue")) {
    truevalue = elem.attribute("truevalue");
  } else {
    truevalue = "true";
  }

  if(elem.hasAttribute("falsevalue")) {
    falsevalue = elem.attribute("falsevalue");
  } else {
    falsevalue = "false";
  }
}

CheckGroupBox::~CheckGroupBox()
{
  //  delete groupbox;
}

QString CheckGroupBox::value()
{
  if(groupbox && groupbox->isChecked()) return truevalue;
  if(checkbox && checkbox->isChecked()) return truevalue;
  return falsevalue;
}

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

  changedByUser = false;

  bool old = false;
  if(groupbox) old = groupbox->isChecked();
  if(checkbox) old = checkbox->isChecked();

  if(value == truevalue) {
    if(groupbox) groupbox->setChecked(true);
    if(checkbox) {
      checkbox->setChecked(true);
      container->setEnabled(true);
    }
  } else if(value == falsevalue) {
    if(groupbox) groupbox->setChecked(false);
    if(checkbox) {
      checkbox->setChecked(false);
      container->setEnabled(false);
    }
  } else {
    printf("Unknown checkbox value: %s\n", value.toStdString().c_str());
  }

  // If set operation did not change the value we must invocate the code manually.
  if(groupbox && old == groupbox->isChecked()) state_change(old);
  if(checkbox && old == checkbox->isChecked()) state_change(old);

  //  setInitialValue(value);

  changedByUser = true;
}

void CheckGroupBox::state_change(bool state)
{
  emit eventOnChange();
  if(changedByUser) emit wasChanged();

  if(checkbox) {
    container->setEnabled(state);
  }
}

bool CheckGroupBox::checked()
{
  return value() == truevalue;
}

void CheckGroupBox::setChecked(bool checked)
{
  setValue(checked ? truevalue : falsevalue);
}

void CheckGroupBox::setWdgValid(bool valid)
{
  QPalette palette;

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

  if(groupbox) groupbox->setPalette(palette);
  if(checkbox) checkbox->setPalette(palette);
}

bool CheckGroupBox::setKeyboardFocus()
{
  QVector< Widget* >::iterator i = children.begin();
  while(i != children.end()) {
    Widget *w = *i;
    if(w) {
      if(w->setKeyboardFocus()) return true;
    }
    i++;
  }

  return false;
}