2020-05-12 11:17:25 +02:00

128 lines
4.6 KiB
C++

/*
Copyright 2006-2020 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 QetGraphicsTableItem_H
#define QetGraphicsTableItem_H
#include <QFont>
#include "qetgraphicsitem.h"
#include "qetapp.h"
#include "QetGraphicsItemModeler/qetgraphicshandleritem.h"
class QAbstractItemModel;
class QetGraphicsHeaderItem;
/**
* @brief The QetGraphicsTableItem class
* This item display a table destined to represent the content of a QAbstractItemModel
* The table have a few parameters to edit her visual aspect.
* Margins, to edit the margin between the cell and the text.
* Text font.
* Text alignment in the cell
* These three parameters are not settable directly with the table but trough the model to be displayed by the table.
* The table search these parameters only in the index(0,0) for all the table.
* By consequence, set data in other index than 0,0 is useless also these parameter can't be set individually for each cell.
* The margins is stored in the model in index Qt::UserRole+1 and for value a QString. See QETUtils::marginsFromString and QETUtils::marginsToString
*/
class QetGraphicsTableItem : public QetGraphicsItem
{
Q_OBJECT
Q_PROPERTY(QSize size READ size WRITE setSize)
Q_PROPERTY(int displayNRow READ displayNRow WRITE setDisplayNRow)
public:
QetGraphicsTableItem(QGraphicsItem *parent= nullptr);
virtual ~QetGraphicsTableItem() override;
enum { Type = UserType + 1300 };
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;
QetGraphicsHeaderItem *headerItem() const {return m_header_item;}
void setSize(const QSize &size);
QSize size() const;
QSize minimumSize() const;
void setDisplayNRow(const int &number);
int displayNRow() const;
void setPreviousTable(QetGraphicsTableItem *table = nullptr);
void setNextTable(QetGraphicsTableItem *table = nullptr);
void setTableName(const QString &name);
QString tableName() const;
int displayNRowOffset() const;
QetGraphicsTableItem *previousTable() const;
QetGraphicsTableItem *nextTable() const;
void setToMinimumHeight();
void initLink();
QUuid uuid() const {return m_uuid;}
QDomElement toXml(QDomDocument &dom_document) const;
void fromXml(const QDomElement &dom_element);
static QString xmlTagName() {return QString("graphics_table");}
protected:
virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;
virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;
virtual bool sceneEventFilter(QGraphicsItem *watched, QEvent *event) override;
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
private:
void modelReseted();
void setUpColumnAndRowMinimumSize();
void setUpBoundingRect();
void adjustHandlerPos();
void setUpHandler();
void handlerMousePressEvent (QGraphicsSceneMouseEvent *event);
void handlerMouseMoveEvent (QGraphicsSceneMouseEvent *event);
void handlerMouseReleaseEvent (QGraphicsSceneMouseEvent *event);
void adjustColumnsWidth();
void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
void headerSectionResized();
void adjustSize();
void previousTableDisplayRowChanged();
private:
QAbstractItemModel *m_model= nullptr;
QVector<int> m_minimum_column_width;
int m_minimum_row_height;
int m_number_of_displayed_row = 0;
QSize m_current_size,
m_old_size,
m_pending_size;
int m_br_margin= 10;
QRectF m_bounding_rect;
QetGraphicsHandlerItem m_handler_item;
QetGraphicsHeaderItem *m_header_item = nullptr;
QetGraphicsTableItem *m_previous_table = nullptr,
*m_next_table = nullptr;
QString m_name;
QUuid m_uuid = QUuid::createUuid(),
m_pending_previous_table_uuid;
};
#endif // QetGraphicsTableItem_H