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 /* ============================================================
 * Falkon - Qt web browser
 * Copyright (C) 2010-2014  David Rosca <nowrep@gmail.com>
 *
 * 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 "animatedwidget.h"
 
 #include <QResizeEvent>
 
 AnimatedWidget::AnimatedWidget(const Direction &direction, int duration, QWidget* parent)
     : QWidget(parent)
     , m_direction(direction)
     , m_stepHeight(0)
     , m_stepY(0)
     , m_startY(0)
     , m_widget(new QWidget(this))
 {
     m_timeLine.setDuration(duration);
     m_timeLine.setFrameRange(0, 100);
     connect(&m_timeLine, &QTimeLine::frameChanged, this, &AnimatedWidget::animateFrame);
 
     setMaximumHeight(0);
 }
 
 void AnimatedWidget::startAnimation()
 {
     if (m_timeLine.state() == QTimeLine::Running) {
         return;
     }
 
     int shown = 0;
     int hidden = 0;
 
     if (m_direction == Down) {
         shown = 0;
         hidden = -m_widget->height();
     }
 
     m_widget->move(QPoint(m_widget->pos().x(), hidden));
 
     m_stepY = (hidden - shown) / 100.0;
     m_startY = hidden;
     m_stepHeight = m_widget->height() / 100.0;
 
     m_timeLine.setDirection(QTimeLine::Forward);
     m_timeLine.start();
 }
 
 void AnimatedWidget::animateFrame(int frame)
 {
     setFixedHeight(frame * m_stepHeight);
     m_widget->move(pos().x(), m_startY - frame * m_stepY);
 }
 
 void AnimatedWidget::hide()
 {
     if (m_timeLine.state() == QTimeLine::Running) {
         return;
     }
 
     m_timeLine.setDirection(QTimeLine::Backward);
     m_timeLine.start();
 
     connect(&m_timeLine, &QTimeLine::finished, this, &QWidget::close);
 
     QWidget* p = parentWidget();
     if (p) {
         p->setFocus();
     }
 }
 
 void AnimatedWidget::resizeEvent(QResizeEvent* event)
 {
     if (event->size().width() != m_widget->width()) {
         m_widget->resize(event->size().width(), m_widget->height());
     }
 
     QWidget::resizeEvent(event);
 }