dynamicelementtextmodel.h

Go to the documentation of this file.

/*
        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 DYNAMICELEMENTTEXTMODEL_H
#define DYNAMICELEMENTTEXTMODEL_H
 
#include <QStandardItemModel>
#include <qstyleditemdelegate.h>
#include "dynamicelementtextitem.h"
 
class QUndoCommand;
class ElementTextItemGroup;
class Element;
 
class DynamicElementTextModel : public QStandardItemModel
{
        Q_OBJECT
        
        public:
        enum ValueType {
                textFrom =1,
                userText,
                infoText,
                compositeText,
                txtAlignment,
                size,
                font,
                color,
                pos,
                frame,
                rotation,
                textWidth,
                grpAlignment,
                grpPos,
                grpRotation,
                grpVAdjust,
                grpName,
                grpHoldBottom,
                grpFrame
        };
        
        DynamicElementTextModel(Element *element, QObject *parent = nullptr);
        ~DynamicElementTextModel() override;
        
        bool indexIsInGroup(const QModelIndex &index) const;
        DynamicElementTextItem *textFromIndex(const QModelIndex &index) const;
        DynamicElementTextItem *textFromItem(QStandardItem *item) const;
        QModelIndex indexFromText(DynamicElementTextItem *text) const;
        QUndoCommand *undoForEditedText(
                        DynamicElementTextItem *deti,
                        QUndoCommand *parent_undo = nullptr) const;
        QUndoCommand *undoForEditedGroup(
                        ElementTextItemGroup *group,
                        QUndoCommand *parent_undo = nullptr) const;
        
        ElementTextItemGroup *groupFromIndex(const QModelIndex &index) const;
        ElementTextItemGroup *groupFromItem(QStandardItem *item) const;
        QModelIndex indexFromGroup(ElementTextItemGroup *group) const;
        bool indexIsText(const QModelIndex &index) const;
        bool indexIsGroup(const QModelIndex &index) const;
        
        bool canDropMimeData(const QMimeData *data,
                             Qt::DropAction action,
                             int row,
                             int column,
                             const QModelIndex &parent) const override;
        bool dropMimeData(const QMimeData *data,
                          Qt::DropAction action,
                          int row,
                          int column,
                          const QModelIndex &parent) override;
        QMimeData *mimeData(const QModelIndexList &indexes) const override;
        QStringList mimeTypes() const override;
        
        signals:
        void dataChanged();
        
        private:
        QList<QStandardItem *> itemsForText(DynamicElementTextItem *deti);
        void addText(DynamicElementTextItem *deti);
        void removeText(DynamicElementTextItem *deti);
        void addGroup(ElementTextItemGroup *group);
        void removeGroup(ElementTextItemGroup *group);
        void addTextToGroup(DynamicElementTextItem *deti,
                            ElementTextItemGroup *group);
        void removeTextFromGroup(DynamicElementTextItem *deti,
                                 ElementTextItemGroup *group);
        void enableSourceText(DynamicElementTextItem *deti,
                              DynamicElementTextItem::TextFrom tf );
        void enableGroupRotationAndPos(ElementTextItemGroup *group);
        void itemDataChanged(QStandardItem *qsi);
        void setConnection(DynamicElementTextItem *deti, bool set);
        void setConnection(ElementTextItemGroup *group, bool set);
        void updateDataFromText(DynamicElementTextItem *deti,
                                DynamicElementTextModel::ValueType type);
        void updateDataFromGroup(ElementTextItemGroup *group,
                                 DynamicElementTextModel::ValueType type);
        
        private:
        QPointer<Element> m_element;
        QHash <DynamicElementTextItem *, QStandardItem *> m_texts_list;
        QHash <ElementTextItemGroup *, QStandardItem *> m_groups_list;
        QHash <DynamicElementTextItem *,
        QList<QMetaObject::Connection>> m_hash_text_connect;
        QHash <ElementTextItemGroup *,
        QList<QMetaObject::Connection>> m_hash_group_connect;
        bool m_block_dataChanged = false;
};
 
class DynamicTextItemDelegate : public QStyledItemDelegate
{
        Q_OBJECT
        
        public:
        DynamicTextItemDelegate(QObject *parent = Q_NULLPTR);
        
        QWidget *createEditor(QWidget *parent,
                              const QStyleOptionViewItem &option,
                              const QModelIndex &index) const override;
        void setModelData(QWidget *editor,
                          QAbstractItemModel *model,
                          const QModelIndex &index) const override;
        
        protected:
        bool eventFilter(QObject *object, QEvent *event) override;
        
        private:
        QStringList availableInfo(DynamicElementTextItem *deti) const;
};
 
#endif // DYNAMICELEMENTTEXTMODEL_H