/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            listbox.cc
 *
 *  Wed Jul 18 10:35:52 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 "listbox.h"
#include <QListWidgetItem>

#include "common.h"

static QListWidgetItem *createItem(QDomElement &elem)
{
  QListWidgetItem *item = new QListWidgetItem();

  if(elem.hasAttribute("caption") &&
     elem.hasAttribute("value")) {
    item->setText(elem.attribute("caption"));
    item->setData(Qt::UserRole, elem.attribute("value"));
  } else {
    printf("XML Error!!! Listbox item is missing one or more "
           "attributes...\n");
  }

  if(elem.hasAttribute("type")) {

    if(elem.attribute("type") == "header") {
      item->setFlags(0);

      QFont headerfont;
      headerfont.setBold(true);
      headerfont.setItalic(true);
      item->setFont(headerfont);

      QBrush headerbrush(Qt::SolidPattern);
      headerbrush.setColor(Qt::lightGray);
      item->setBackground(headerbrush);

    }

    if(elem.attribute("type") == "separator") {
      item->setText("");
      item->setFlags(0);
    } 

  }

  return item;
}

ListBox::ListBox(QDomNode &node, MacroWindow *macrowindow)
  : QListWidget(), Widget(node, macrowindow)
{
  valueIsChangingByComputer = false;

  setCommonAttributes(this, node);

  QDomNodeList children = node.childNodes();

  for (int i=0; i < children.count(); i++) {
    QDomNode child = children.at(i);
    QDomElement list_elem = child.toElement();
    addItem(createItem(list_elem));
  }

  connect(this, SIGNAL(itemSelectionChanged()), this, SLOT(changed()));
}

bool ListBox::isValid()
{
  return selectedItems().size() != 0;
}

QString ListBox::getValue()
{
  QString value = "none";
  if(currentRow() != -1) value = currentItem()->data(Qt::UserRole).toString();
  return value;
}

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

  valueIsChangingByComputer = true;
  int sel = -1; // -1 is default for none selected

  for(int i = 0; i < count(); i++) {
    QListWidgetItem *listitem = item(i);
    if(listitem->data(Qt::UserRole).toString() == value) sel = i;
  }

  setCurrentRow(sel);

  setInitialValue(value);
  valueIsChangingByComputer = false;
}

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

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

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

void ListBox::changed()
{
  if(!valueIsChangingByComputer) emit wasChanged();
}

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

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

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

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