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/*
Copyright 2006-2019 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 TITLEBLOCK_SLASH_TEMPLATE_VIEW_H
#define TITLEBLOCK_SLASH_TEMPLATE_VIEW_H
#include <QGraphicsView>
#include "titleblocktemplate.h"
class HelperCell;
class SplittedHelperCell;
class TitleBlockTemplateCommand;
class TitleBlockTemplateCellsSet;
/**
This QGraphicsView subclass is used in the title block template editor to
offer a graphical preview of the template being edited, but also to handle
cell selection and various actions.
*/
class TitleBlockTemplateView : public QGraphicsView {
Q_OBJECT
// constructors, destructor
public:
TitleBlockTemplateView(QWidget * = nullptr);
TitleBlockTemplateView(QGraphicsScene *, QWidget * = nullptr);
~TitleBlockTemplateView() override;
private:
TitleBlockTemplateView(const TitleBlockTemplateView &);
// methods and slots
public:
TitleBlockTemplate *titleBlockTemplate() const;
virtual QList<TitleBlockCell *> selectedCells() const;
virtual TitleBlockTemplateCellsSet selectedCellsSet() const;
virtual TitleBlockTemplateCellsSet cells(const QRectF &) const;
virtual void analyzeSelectedCells(bool *, bool *, int *);
virtual QSizeF templateSize() const;
virtual qreal templateWidth() const;
virtual qreal templateHeight() const;
public slots:
void setTitleBlockTemplate(TitleBlockTemplate *);
void selectionChanged();
void zoomIn();
void zoomOut();
void zoomFit();
void zoomReset();
QList<TitleBlockCell *> cut();
QList<TitleBlockCell *> copy();
bool mayPaste();
QList<TitleBlockCell> pastedCells();
void paste();
void addColumnAtEnd();
void addRowAtEnd();
void addColumnBefore();
void addRowBefore();
void addColumnAfter();
void addRowAfter();
void editColumn(HelperCell * = nullptr);
void editRow(HelperCell * = nullptr);
void deleteColumn();
void deleteRow();
void mergeSelectedCells();
void splitSelectedCell();
void refresh();
void changePreviewWidth();
void setPreviewWidth(int);
void updateLayout();
void rowsDimensionsChanged();
void columnsDimensionsChanged();
void updateDisplayedMinMaxWidth();
void setReadOnly(bool);
protected slots:
virtual void applyColumnsWidths(bool = true);
virtual void applyRowsHeights(bool = true);
virtual void updateRowsHelperCells();
virtual void updateColumnsHelperCells();
protected:
void drawBackground(QPainter *, const QRectF &) override;
virtual void addCells();
virtual void loadTemplate(TitleBlockTemplate *);
virtual void init();
void wheelEvent(QWheelEvent *) override;
virtual qreal zoomFactor() const;
virtual void fillWithEmptyCells();
bool event(QEvent *) override;
virtual void normalizeCells(QList<TitleBlockCell> &, int x = 0, int y = 0) const;
signals:
void selectedCellsChanged(QList<TitleBlockCell *>);
void gridModificationRequested(TitleBlockTemplateCommand *);
void previewWidthChanged(int, int);
private:
QList<QAction *> rowsActions() const;
QList<QAction *> columnsActions() const;
void updateTotalWidthLabel();
void requestGridModification(TitleBlockTemplateCommand *);
int lastContextMenuCellIndex() const;
int indexOf(QGraphicsLayoutItem *);
void removeItem(QGraphicsLayoutItem *);
TitleBlockTemplateCellsSet makeCellsSetFromGraphicsItems(const QList<QGraphicsItem *> &) const;
QString makePrettyToolTip(const QString &);
private slots:
void updateLastContextMenuCell(HelperCell *);
void adjustSceneRect();
// attributes
private:
TitleBlockTemplate *tbtemplate_;
QGraphicsGridLayout *tbgrid_;
QGraphicsWidget *form_;
int preview_width_;
SplittedHelperCell *total_width_helper_cell_;
HelperCell *extra_cells_width_helper_cell_;
QAction *add_column_before_, *add_row_before_;
QAction *add_column_after_, *add_row_after_;
QAction *edit_column_dim_, *edit_row_dim_;
QAction *delete_column_, *delete_row_;
QAction *change_preview_width_;
HelperCell *last_context_menu_cell_;
int apply_columns_widths_count_;
int apply_rows_heights_count_;
bool first_activation_; ///< Boolean used to detect the first display of this widget
bool read_only_; ///< Boolean stating whether this view allows template edition
};
#endif
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