File indexing completed on 2024-05-12 16:35:43

 /* This file is part of the KDE project
    Copyright 2006-2007 Stefan Nikolaus <stefan.nikolaus@kdemail.net>
    Copyright 1999-2002,2004 Laurent Montel <montel@kde.org>
    Copyright 2002-2005 Ariya Hidayat <ariya@kde.org>
    Copyright 1999-2001,2003 David Faure <faure@kde.org>
    Copyright 2001-2003 Philipp Mueller <philipp.mueller@gmx.de>
    Copyright 2002-2003 Norbert Andres <nandres@web.de>
    Copyright 2000-2001 Werner Trobin <trobin@kde.org>
    Copyright 2002 Harri Porten <porten@kde.org>
    Copyright 2002 John Dailey <dailey@vt.edu>
    Copyright 1999-2000 Torben Weis <weis@kde.org>
    Copyright 2000 Wilco Greven <greven@kde.org>
    Copyright 1999 Boris Wedl <boris.wedl@kfunigraz.ac.at>
    Copyright 1999 Reginald Stadlbauer <reggie@kde.org>
    Copyright (C) 2010 Boudewijn Rempt <boud@kogmbh.com>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #ifndef CALLIGRA_SHEETS_CANVAS_ITEM
 #define CALLIGRA_SHEETS_CANVAS_ITEM
 
 #include <QList>
 #include <QGraphicsWidget>
 
 #include <KoCanvasBase.h>
 
 #include "sheets_common_export.h"
 
 #include "Global.h"
 #include "CanvasBase.h"
 
 class QEvent;
 class QFocusEvent;
 class QKeyEvent;
 class QPainter;
 
 namespace Calligra
 {
 namespace Sheets
 {
 class Cell;
 class CanvasItem;
 class ColumnHeader;
 class Damage;
 class Doc;
 class Sheet;
 class RowHeader;
 class Selection;
 class View;
 
 
 /**
  * The scrollable area showing the cells.
  */
 class CALLIGRA_SHEETS_COMMON_EXPORT CanvasItem : public QGraphicsWidget, public CanvasBase
 {
     friend class ColumnHeaderItem;
     friend class RowHeaderItem;
     friend class View;
     friend class CellTool;
 
     Q_OBJECT
 
 public:
     explicit CanvasItem(Doc* doc, QGraphicsItem *parent = 0);
     ~CanvasItem() override;
 
     QWidget* canvasWidget() override {
         return 0;
     }
     const QWidget* canvasWidget() const override {
         return 0;
     }
 
     /**
      * Return the widget that will be added to the scrollArea.
      */
     QGraphicsObject *canvasItem() override { return this; }
 
     /**
      * Return the widget that will be added to the scrollArea.
      */
     const QGraphicsObject *canvasItem() const override{ return this; }
 
 
 public Q_SLOTS:
     void setDocumentOffset(const QPoint& offset) {
         CanvasBase::setDocumentOffset(offset);
     }
     void setDocumentSize(const QSizeF& size) {
         CanvasBase::setDocumentSize(size);
     }
 
     void refreshSheetViews();
     void setActiveSheet(Sheet* sheet);
 
     void setObscuredRange(const QSize& size);
 
     /**
      * \ingroup Damages
      * Handles damages that need visual updates.
      */
     void handleDamages(const QList<Damage*>& damages);
 
     void updateAccessedCellRange(Sheet* sheet, const QPoint& location);
 
 Q_SIGNALS:
     /* virtual */ void documentSizeChanged(const QSize&) override;
     void obscuredRangeChanged(const Calligra::Sheets::Sheet* sheet, const QSize&);
 
 public:
     void mousePressEvent(QGraphicsSceneMouseEvent* _ev) override;
     void mouseReleaseEvent(QGraphicsSceneMouseEvent* _ev) override;
 protected:
     void keyPressEvent(QKeyEvent* _ev) override {
         CanvasBase::keyPressed(_ev);
     }
     void paint( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget = 0) override;
     void mouseMoveEvent(QGraphicsSceneMouseEvent* _ev) override;
     void mouseDoubleClickEvent(QGraphicsSceneMouseEvent*) override;
     void focusInEvent(QFocusEvent* _ev) override {
         CanvasBase::focusIn(_ev);
         QGraphicsWidget::focusInEvent(_ev);
     }
     void dragEnterEvent(QGraphicsSceneDragDropEvent*) override;
     void dragMoveEvent(QGraphicsSceneDragDropEvent*) override;
     void dragLeaveEvent(QGraphicsSceneDragDropEvent*) override;
     void dropEvent(QGraphicsSceneDragDropEvent*) override;
     /// reimplemented method from superclass
     QVariant inputMethodQuery(Qt::InputMethodQuery query) const override {
         return CanvasBase::inputMethodQuery(query);
     }
     /// reimplemented method from superclass
     void inputMethodEvent(QInputMethodEvent *event) override {
         CanvasBase::inputMethodEvent(event);
     }
     /// reimplemented method from superclass
     virtual void tabletEvent(QTabletEvent *e) {
         CanvasBase::tabletEvent(e);
     }
 
 private:
     bool eventFilter(QObject *o, QEvent *e) override {
         return CanvasBase::eventFilter(o, e);
     }
 
 public:
     Selection* selection() const override;
     Sheet* activeSheet() const override;
     KoZoomHandler* zoomHandler() const override;
     SheetView* sheetView(const Sheet* sheet) const override;
 
     bool isViewLoading() const override { return false; }
     void enableAutoScroll() override {}
     void disableAutoScroll() override {}
     void setVertScrollBarPos(qreal) override {}
     void setHorizScrollBarPos(qreal) override {}
 
     void update() override { QGraphicsWidget::update(); }
     void update(const QRectF& rect) override { QGraphicsWidget::update(rect); }
     Qt::LayoutDirection layoutDirection() const override { return QGraphicsWidget::layoutDirection(); }
     QRectF rect() const override { return QGraphicsWidget::rect(); }
     QSizeF size() const override { return QGraphicsWidget::size(); }
     QPoint mapToGlobal(const QPointF& point) const override { return QGraphicsWidget::mapToScene(point).toPoint(); /* TODO */ }
     void updateMicroFocus() override { /*QGraphicsWidget::updateMicroFocus();*/ }
 
     ColumnHeader* columnHeader() const override;
     RowHeader* rowHeader() const override;
     void setCursor(const QCursor &cursor) override;
 
     void showContextMenu(const QPoint& globalPos) override { Q_UNUSED(globalPos); }
 private:
     Q_DISABLE_COPY(CanvasItem)
 
     class Private;
     Private * const d;
 };
 
 } // namespace Sheets
 } // namespace Calligra
 
 #endif // CALLIGRA_SHEETS_CANVAS_ITEM