qgstableeditorwidget.h

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// This file is part of CppSheets.
//
// Copyright 2018 Patrick Flynn <patrick_dev2000@outlook.com>
//
// CppSheets 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 3 of the License, or
// (at your option) any later version.
//
// CppSheets 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 CppSheets. If not, see <https://www.gnu.org/licenses/>.
 
#ifndef QGSTABLEEDITORWIDGET_H
#define QGSTABLEEDITORWIDGET_H
 
#include "qgis_gui.h"
#include "qgstablecell.h"
#include "qgsproperty.h"
#include <QTableWidget>
#include <QPlainTextEdit>
#include <QStyledItemDelegate>
 
 
#ifndef SIP_RUN
 
class QgsTableEditorTextEdit : public QPlainTextEdit
{
    Q_OBJECT
  public:
    QgsTableEditorTextEdit( QWidget *parent );
 
    void setWeakEditorMode( bool weakEditorMode );
 
    void setWidgetOwnsGeometry( bool value )
    {
      mWidgetOwnsGeometry = value;
    }
 
  public slots:
 
    void resizeToContents();
 
  protected:
    void changeEvent( QEvent *e ) override;
 
    void keyPressEvent( QKeyEvent *e ) override;
 
  private:
 
    void updateMinimumSize();
 
    bool mWeakEditorMode = false;
    int mOriginalWidth = -1;
    int mOriginalHeight = -1;
    bool mWidgetOwnsGeometry = false;
 
};
 
class QgsTableEditorDelegate : public QStyledItemDelegate
{
    Q_OBJECT
  public:
    QgsTableEditorDelegate( QObject *parent );
 
    void setWeakEditorMode( bool weakEditorMode );
 
  signals:
 
    void updateNumericFormatForIndex( const QModelIndex &index ) const;
 
  protected:
    QWidget *createEditor( QWidget *parent, const QStyleOptionViewItem & /*option*/, const QModelIndex &index ) const override;
    void setEditorData( QWidget *editor, const QModelIndex &index ) const override;
    void setModelData( QWidget *editor, QAbstractItemModel *model, const QModelIndex &index ) const override;
 
  private:
 
    bool mWeakEditorMode = false;
    mutable QModelIndex mLastIndex;
};
 
 
#endif
 
class GUI_EXPORT QgsTableEditorWidget : public QTableWidget
{
    Q_OBJECT
  public:
 
    QgsTableEditorWidget( QWidget *parent SIP_TRANSFERTHIS = nullptr );
    ~QgsTableEditorWidget() override;
 
    void setTableContents( const QgsTableContents &contents );
 
    QgsTableContents tableContents() const;
 
    void setSelectionNumericFormat( QgsNumericFormat *format SIP_TRANSFER );
 
    QgsNumericFormat *selectionNumericFormat();
 
    bool hasMixedSelectionNumericFormat();
 
    Q_DECL_DEPRECATED QColor selectionForegroundColor() SIP_DEPRECATED;
 
    QColor selectionBackgroundColor();
 
    Qt::Alignment selectionHorizontalAlignment();
 
    Qt::Alignment selectionVerticalAlignment();
 
    QgsProperty selectionCellProperty();
 
    QgsTextFormat selectionTextFormat();
 
    double selectionRowHeight();
 
    double selectionColumnWidth();
 
    double tableRowHeight( int row );
 
    double tableColumnWidth( int column );
 
    void setTableRowHeight( int row, double height );
 
    void setTableColumnWidth( int column, double width );
 
    QList<int> rowsAssociatedWithSelection();
 
    QList<int> columnsAssociatedWithSelection();
 
    QVariantList tableHeaders() const;
 
    bool isHeaderCellSelected() const;
 
    bool canMergeSelection() const;
 
    bool canSplitSelection() const;
 
  public slots:
 
    void insertRowsBelow();
 
    void insertRowsAbove();
 
    void insertColumnsBefore();
 
    void insertColumnsAfter();
 
    void deleteRows();
 
    void deleteColumns();
 
    void expandRowSelection();
 
    void expandColumnSelection();
 
    void clearSelectedCells();
 
    Q_DECL_DEPRECATED void setSelectionForegroundColor( const QColor &color ) SIP_DEPRECATED;
 
    void setSelectionBackgroundColor( const QColor &color );
 
    void setSelectionHorizontalAlignment( Qt::Alignment alignment );
 
    void setSelectionVerticalAlignment( Qt::Alignment alignment );
 
    void setSelectionCellProperty( const QgsProperty &property );
 
    void setSelectionTextFormat( const QgsTextFormat &format );
 
    void setSelectionRowHeight( double height );
 
    void setSelectionColumnWidth( double height );
 
    void setIncludeTableHeader( bool included );
 
    void setTableHeaders( const QVariantList &headers );
 
    void mergeSelectedCells();
 
    void splitSelectedCells();
 
  protected:
    void keyPressEvent( QKeyEvent *event ) override;
 
  signals:
 
    void tableChanged();
 
    void activeCellChanged();
 
  private slots:
 
    void updateNumericFormatForIndex( const QModelIndex &index );
 
  private:
 
    enum Roles
    {
      PresetBackgroundColorRole = Qt::UserRole + 1,
      RowHeight,
      ColumnWidth,
      CellContent,
      TextFormat,
      HorizontalAlignment,
      VerticalAlignment,
      CellProperty,
    };
 
    void updateHeaders();
 
    bool collectConsecutiveRowRange( const QModelIndexList &list, int &minRow, int &maxRow ) const;
    bool collectConsecutiveColumnRange( const QModelIndexList &list, int &minColumn, int &maxColumn ) const;
    QList< int > collectUniqueRows( const QModelIndexList &list ) const;
    QList< int > collectUniqueColumns( const QModelIndexList &list ) const;
    bool isRectangularSelection( const QModelIndexList &list ) const;
    bool hasMergedCells( const QModelIndexList &list ) const;
 
    int mBlockSignals = 0;
    QHash< QTableWidgetItem *, QgsNumericFormat * > mNumericFormats;
    QMenu *mHeaderMenu = nullptr;
    QMenu *mCellMenu = nullptr;
    bool mIncludeHeader = false;
    bool mFirstSet = true;
 
    friend class QgsTableEditorDelegate;
 
};
 
#endif // QGSTABLEEDITORWIDGET_H