File indexing completed on 2024-04-28 04:32:04 

0001 /*
0002  * Copyright (C) 2010-2015 by Stephen Allewell
0003  * steve.allewell@gmail.com
0004  *
0005  * This program is free software; you can redistribute it and/or modify
0006  * it under the terms of the GNU General Public License as published by
0007  * the Free Software Foundation; either version 2 of the License, or
0008  * (at your option) any later version.
0009  */
0010 
0011 #ifndef PageLayoutEditor_H
0012 #define PageLayoutEditor_H
0013 
0014 #include <QWidget>
0015 
0016 #include "Boundary.h"
0017 
0018 class Document;
0019 class PagePreviewListWidgetItem;
0020 class QMouseEvent;
0021 
0022 class PageLayoutEditor : public QWidget
0023 {
0024     Q_OBJECT
0025 
0026 public:
0027     PageLayoutEditor(QWidget *, Document *);
0028     virtual ~PageLayoutEditor() = default;
0029 
0030     double zoomFactor() const;
0031     int gridSize() const;
0032     bool showGrid() const;
0033 
0034     void setPagePreview(PagePreviewListWidgetItem *);
0035     void updatePagePreview();
0036     void setZoomFactor(double);
0037     void setGridSize(int);
0038     void setShowGrid(bool);
0039     void setSelecting(bool);
0040 
0041     int scale(int) const;
0042     int unscale(int) const;
0043     QPoint scale(const QPoint &) const;
0044     QPoint unscale(const QPoint &) const;
0045     QRect scale(const QRect &) const;
0046     QRect unscale(const QRect &) const;
0047 
0048 signals:
0049     void selectionMade(QRect);
0050     void elementGeometryChanged();
0051 
0052 protected:
0053     virtual void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
0054     virtual void mouseMoveEvent(QMouseEvent *) Q_DECL_OVERRIDE;
0055     virtual void mouseReleaseEvent(QMouseEvent *) Q_DECL_OVERRIDE;
0056     virtual void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
0057 
0058 private slots:
0059     void contextMenuRequestedOn(const QPoint &);
0060 
0061 private:
0062     QPoint toSnap(const QPoint &) const;
0063 
0064     Document *m_document;
0065     PagePreviewListWidgetItem *m_pagePreview;
0066     Element *m_elementUnderCursor;
0067 
0068     int m_paperWidth;
0069     int m_paperHeight;
0070 
0071     bool m_selecting;
0072     bool m_resizing;
0073     bool m_moved;
0074     Boundary m_boundary;
0075     QRect m_rubberBand;
0076     QPoint m_start;
0077     QPoint m_end;
0078     const QPoint *m_node;
0079 
0080     bool m_showGrid;
0081     int m_gridSize;
0082     double m_zoomFactor;
0083 };
0084 
0085 #endif // PageLayoutEditor_H