Section.h

/*
    Elypson/qt-collapsible-section
    (c) 2016 Michael A. Voelkel - michael.alexander.voelkel@gmail.com

    This file is part of Elypson/qt-collapsible section.

    Elypson/qt-collapsible-section is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Elypson/qt-collapsible-section 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 Lesser General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Elypson/qt-collapsible-section. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef SECTION_H
#define SECTION_H

#include <QFrame>
#include <QGridLayout>
#include <QParallelAnimationGroup>
#include <QScrollArea>
#include <QToolButton>
#include <QWidget>

namespace ui
{
    class Section : public QWidget
    {
        Q_OBJECT
        
    private:
        QGridLayout* mainLayout;
        QToolButton* toggleButton;
        QFrame* headerLine;
        QParallelAnimationGroup* toggleAnimation;
        QScrollArea* contentArea;
        int animationDuration;
        int collapsedHeight;
        bool isExpanded = false;
        
    public slots:
        void toggle(bool collapsed);

    public:
        static const int DEFAULT_DURATION = 0;
    
        // initialize section
        explicit Section(const QString& title = "", const int animationDuration = DEFAULT_DURATION, QWidget* parent = 0);

        // set layout of content
        void setContentLayout(QLayout& contentLayout);
        
        // set title
        void setTitle(QString title);
        
        // update animations and their heights
        void updateHeights();
    };
}

#endif // SECTION_H