qgstableeditorwidget.h

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// This file is part of CppSheets.
//
// Copyright 2018 Patrick Flynn <[email protected]>
//
// 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 "qgsproperty.h"
#include "qgstablecell.h"
 
#include <QPlainTextEdit>
#include <QStyledItemDelegate>
#include <QTableWidget>
 
#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