/********************************************************************************

**

**  GNU General Public License Usage

**

**  This program 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 3 of the License, or

**  (at your option) any later version.

**

**  This program 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 this program. If not, see <http://www.gnu.org/licenses/>.

**

********************************************************************************/

#include "button.h"

Button::Button(QGraphicsItem *parent)

        : QGraphicsItem(parent), m_isPressed(false)

{

}

Button::Button(const QString normal, const QString pressed,

               QGraphicsItem *parent)

        : QGraphicsItem(parent), m_isPressed(false)

{

    setPixmap(normal, pressed);

}

QRectF Button::boundingRect() const

{

    return m_normal.rect();

}

void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,

                   QWidget *widget)

{

    Q_UNUSED(option);

    Q_UNUSED(widget);

    if (m_isPressed)

        painter->drawPixmap(0, 0, m_pressed);

    else

        painter->drawPixmap(0, 0, m_normal);

}

void Button::setPixmap(QString normal, QString pressed)

{

    if (! m_normal.isNull()) {

        m_normal.detach();

        m_pressed.detach();

    }

    m_normal.load(normal);

    m_pressed.load(pressed);

}

void Button::mousePressEvent(QGraphicsSceneMouseEvent *event)

{

    if (event->button() == Qt::LeftButton) {

        if (contains(event->pos()))

            m_isPressed = true;

        update();

    }

}

void Button::mouseMoveEvent(QGraphicsSceneMouseEvent *event)

{

    if (event->buttons() & Qt::LeftButton) {

        if (contains(event->pos())) {

            m_isPressed = true;

        } else {

            m_isPressed = false;

        }

        update();

    }

}

void Button::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)

{

    if (event->button() == Qt::LeftButton) {

        m_isPressed = false;

        update();

        if (contains(event->pos())) {

            emit clicked();

        }

    }

}