qetgraphicsheaderitem.h

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/*
        Copyright 2006-2020 The QElectroTech Team
        This file is part of QElectroTech.
 
        QElectroTech 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.
 
        QElectroTech 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 QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QETGRAPHICSHEADERITEM_H
#define QETGRAPHICSHEADERITEM_H
 
#include "qetapp.h"
 
#include <QGraphicsObject>
#include <QFont>
#include <QMargins>
 
class QAbstractItemModel;
 
class QetGraphicsHeaderItem : public QGraphicsObject
{
        Q_OBJECT
 
        public:
                QetGraphicsHeaderItem(QGraphicsItem *parent = nullptr);
 
                enum { Type = UserType + 1301 };
                int type() const override { return Type; }
 
                void setModel(QAbstractItemModel *model = nullptr);
                QAbstractItemModel *model() const;
 
                virtual QRectF boundingRect() const override;
                virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
                QRect rect() const;
                void resizeSection(int logicalIndex, int size);
                int sectionSize(int logical_index) const;
                QVector<int> minimumSectionWidth()  const {return m_sections_minimum_width;}
                int minimumWidth() const {return m_minimum_width;}
 
                QDomElement toXml (QDomDocument &document) const;
                void fromXml(const QDomElement &element);
                static QString xmlTagName() {return QString("graphics_header");}
 
        signals:
                void sectionResized(int logicalIndex, int size);
                void heightResized();
 
        private:
                void setUpMinimumSectionsSize();
                void setUpBoundingRect();
                void headerDataChanged(Qt::Orientations orientation, int first, int last);
                void adjustSize();
                void modelReseted();
 
        private:
                QRectF m_bounding_rect;
                QAbstractItemModel *m_model = nullptr;
                QVector<int> m_sections_minimum_width,
                                         m_current_sections_width;
                int m_section_height=1,
                        m_minimum_section_height=1;
                int m_minimum_width=1;
                QRect m_current_rect;
};
 
#endif // QETGRAPHICSHEADERITEM_H