#include "TabWidget.h"
#include <QBoxLayout>
/* This file is part of Rocs,
   Copyright (C) 2008 by:
   Tomaz Canabrava <tomaz.canabrava@gmail.com>
   Ugo Sangiori <ugorox@gmail.com>

   Rocs 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.

   Rocs 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 Step; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
#include <QStackedWidget>

#include <kmultitabbar.h>
#include <KIcon>
#include <KDebug>
#include <KAction>


TabWidget::TabWidget( TabWidget::Orientation o, QWidget *parent) : QWidget(parent) {
    m_orientation = o;
    m_layout = 0;
    m_numOfTabs = 0;
    m_tabs =  new KMultiTabBar((KMultiTabBar::KMultiTabBarPosition)o, this);
    m_tabs->setStyle(KMultiTabBar::KDEV3ICON);
    m_widgets = new QStackedWidget(this);
    createLayout();
}

void TabWidget::createLayout() {
    if (m_layout != 0) {
        delete m_layout;
        m_layout = 0;
    }

    if ((m_orientation == TabOnLeft) || (m_orientation == TabOnRight) ) {
        m_layout = new QBoxLayout(QBoxLayout::LeftToRight, this);
    }
    else {
        m_layout = new QBoxLayout(QBoxLayout::TopToBottom, this);
    }
    m_layout->setSizeConstraint(QLayout::SetMaximumSize);
    switch (m_orientation) {
    case TabOnLeft  :
    case TabOnTop:
        m_layout->addWidget(m_tabs);
        m_layout->addWidget(m_widgets);
        break;
    case TabOnRight :
    case TabOnBottom:
        m_layout->addWidget(m_widgets);
        m_layout->addWidget(m_tabs);
        break;
    }
}

void TabWidget::controlPanel(int index) {
    if ( m_widgets -> currentIndex() == index) {
        m_widgets ->setVisible(! m_widgets -> isVisible() );
    }
    else {
        m_widgets->setCurrentIndex(index);
        releaseButton(index);
        emit widgetActivated(index);
    }
    kDebug() << "Widget Size: " << size();
}

void TabWidget::releaseButton(int index) {
    if ( m_activeTab == index ) {
        m_tabs -> setTab( m_activeTab, true );
        return;
    }
    m_tabs -> setTab( m_activeTab, false );
    m_activeTab = index;
}

void TabWidget::addWidget(QWidget *w, const QString& text,const KIcon& icon) {
    m_widgets -> addWidget(w);
    m_tabs -> appendTab(icon.pixmap(16), m_numOfTabs, text);
    
    if (m_numOfTabs == 0){
      m_tabs->setTab(m_numOfTabs, true);
    }
      
    connect(m_tabs->tab(m_numOfTabs), SIGNAL(clicked(int)), this, SLOT(controlPanel(int)));
    m_numOfTabs++;
}

void TabWidget::addAction(KAction *a) {
    m_tabs -> appendTab( a->icon().pixmap(16), m_numOfTabs+m_numOfActions, a->text());
    connect(m_tabs->tab(m_numOfTabs+m_numOfActions), SIGNAL(clicked(int)), a, SLOT(trigger()));
    connect(m_tabs->tab(m_numOfTabs+m_numOfActions), SIGNAL(clicked(int)), this, SLOT(releaseActionButton(int)));
    a->trigger();
}

void TabWidget::releaseActionButton(int index) {
    m_tabs->setTab(m_activeTab, true);
    m_tabs->setTab(index, false);
}