libs/pageapp/KoPACanvas.h

0001 /* This file is part of the KDE project
0002    Copyright (C) 2006-2007 Thorsten Zachmann <zachmann@kde.org>
0003
0004    This library is free software; you can redistribute it and/or
0005    modify it under the terms of the GNU Library General Public
0006    License as published by the Free Software Foundation; either
0007    version 2 of the License, or (at your option) any later version.
0008
0009    This library is distributed in the hope that it will be useful,
0010    but WITHOUT ANY WARRANTY; without even the implied warranty of
0011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012    Library General Public License for more details.
0013
0014    You should have received a copy of the GNU Library General Public License
0015    along with this library; see the file COPYING.LIB.  If not, write to
0016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018 */
0019
0020 #ifndef KOPACANVAS_H
0021 #define KOPACANVAS_H
0022
0023 #include <QWidget>
0024 #include <QList>
0025 #include <KoPACanvasBase.h>
0026
0027 #include "kopageapp_export.h"
0028
0029 /// Widget that shows a KoPAPage
0030 class KOPAGEAPP_EXPORT KoPACanvas : public QWidget, public KoPACanvasBase
0031 {
0032     Q_OBJECT
0033 public:
0034     explicit KoPACanvas( KoPAViewBase * view, KoPADocument * doc, QWidget *parent = 0, Qt::WindowFlags f = 0);
0035
0036     void repaint() override;
0037
0038     QWidget* canvasWidget() override;
0039     const QWidget* canvasWidget() const override;
0040
0041     /// reimplemented method
0042     void updateCanvas( const QRectF& rc ) override;
0043
0044     /// reimplemented method
0045     void updateInputMethodInfo() override;
0046
0047     /// Recalculates the size of the canvas (needed when zooming or changing pagelayout)
0048     void updateSize() override;
0049
0050     void setCursor(const QCursor &cursor) override;
0051
0052 public Q_SLOTS:
0053
0054     void slotSetDocumentOffset(const QPoint &offset) { setDocumentOffset(offset); }
0055
0056 Q_SIGNALS:
0057     void documentSize(const QSize &size);
0058
0059     /**
0060      * Emitted when the entire controller size changes
0061      * @param size the size in widget pixels.
0062      */
0063     void sizeChanged( const QSize & size );
0064
0065     /// Emitted when updateCanvas has been called.
0066     void canvasUpdated();
0067
0068 protected:
0069     /// reimplemented method from superclass
0070     bool event(QEvent *) override;
0071     /// reimplemented method from superclass
0072     void paintEvent( QPaintEvent* event ) override;
0073     /// reimplemented method from superclass
0074     void tabletEvent( QTabletEvent *event ) override;
0075     /// reimplemented method from superclass
0076     void mousePressEvent( QMouseEvent *event ) override;
0077     /// reimplemented method from superclass
0078     void mouseDoubleClickEvent( QMouseEvent *event ) override;
0079     /// reimplemented method from superclass
0080     void mouseMoveEvent( QMouseEvent *event ) override;
0081     /// reimplemented method from superclass
0082     void mouseReleaseEvent( QMouseEvent *event ) override;
0083     /// reimplemented method from superclass
0084     void keyPressEvent( QKeyEvent *event ) override;
0085     /// reimplemented method from superclass
0086     void keyReleaseEvent( QKeyEvent *event ) override;
0087     /// reimplemented method from superclass
0088     void wheelEvent ( QWheelEvent * event ) override;
0089     /// reimplemented method from superclass
0090     void closeEvent( QCloseEvent * event ) override;
0091     /// reimplemented method from superclass
0092     QVariant inputMethodQuery(Qt::InputMethodQuery query) const override;
0093     /// reimplemented method from superclass
0094     void inputMethodEvent(QInputMethodEvent *event) override;
0095
0096     /// reimplemented method from superclass
0097     void resizeEvent( QResizeEvent * event ) override;
0098
0099     /**
0100      * Shows the default context menu
0101      * @param globalPos global position to show the menu at.
0102      * @param actionList action list to be inserted into the menu
0103      */
0104     void showContextMenu( const QPoint& globalPos, const QList<QAction*>& actionList );
0105 };
0106
0107 #endif /* KOPACANVAS_H */