175 lines
3.7 KiB
C++
Executable File
175 lines
3.7 KiB
C++
Executable File
/* This file is a part of plaYUVer project
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* Copyright (C) 2014 by plaYUVer developers
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* \file ViewArea.h
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* \brief Function to manage image display
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* Based on the work of Ricardo N. Rocha Sardo in SCode project
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*/
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#ifndef __VIEWAREA_H__
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#define __VIEWAREA_H__
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#include <QWidget>
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#include <QPixmap>
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#include <QBitmap>
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#include <QColor>
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#include "TypeDef.h"
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#include "GridManager.h"
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namespace plaYUVer
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{
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class InputStream;
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/**
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*
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*/
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class ViewArea: public QWidget
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{
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Q_OBJECT
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public:
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enum ViewMode
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{
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NormalMode, MaskMode,
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};
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enum Tool
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{
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NormalSelectionTool, BlockSelectionTool, MaskTool, EraserTool
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};
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ViewArea( QWidget *parent = 0 );
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void setImage( const QPixmap &pixmap );
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void setMode( ViewMode mode );
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void setTool( Tool tool );
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void setMaskColor( const QColor &color = QColor() );
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/**
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* Clears any contents.
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*/
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void clear();
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/**
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* Clears any mask content.
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*/
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void clearMask();
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QPixmap image() const
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{
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return m_pixmap;
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}
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QBitmap mask() const
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{
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return m_mask;
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}
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QRect selectedArea() const
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{
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return m_selectedArea;
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}
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GridManager gridManager() const
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{
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return m_grid;
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}
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ViewMode mode() const
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{
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return m_mode;
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}
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Tool tool() const
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{
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return m_tool;
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}
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QColor maskColor() const
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{
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return m_maskColor;
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}
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void setInputStream( InputStream *stream );
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InputStream* getInputStream();
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Double getZoomFactor();
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// QSize sizeHint() const;
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signals:
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void selectionChanged( const QRect &rect );
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void positionChanged( const QPoint &pos, InputStream *stream );
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void zoomFactorChanged( double );
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public slots:
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void setNormalMode();
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void setMaskMode();
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void setMaskTool();
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void setEraserTool();
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void setNormalSelectionTool();
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void setBlockSelectionTool();
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void setGridVisible( bool enable );
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void setSnapToGrid( bool enable );
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void setSelectedArea( QRect &rect );
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void setZoomFactor( double f );
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protected:
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void paintEvent( QPaintEvent *event );
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void resizeEvent( QResizeEvent * event );
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void mousePressEvent( QMouseEvent *event );
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void mouseMoveEvent( QMouseEvent *event );
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void mouseReleaseEvent( QMouseEvent *event );
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void wheelEvent( QWheelEvent *event );
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void updateSize();
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void updateOffset();
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private:
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bool isPosValid( const QPoint &pos ) const;
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void updateMask( const QRect &rect );
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QPoint windowToView( const QPoint& pt ) const;
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QRect windowToView( const QRect& rc ) const;
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QPoint viewToWindow( const QPoint& pt ) const;
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QRect viewToWindow( const QRect& rc ) const;
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QPixmap m_pixmap;
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QBitmap m_mask;
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QRect m_selectedArea;
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QPoint m_lastPos;
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GridManager m_grid;
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ViewMode m_mode;
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Tool m_tool;
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QColor m_maskColor;
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double m_zoomFactor;
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int m_xOffset;
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int m_yOffset;
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bool m_blockTrackEnable;
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bool m_newShape;
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bool m_gridVisible;
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bool m_snapToGrid;
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bool m_cursorInGrid;
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InputStream *m_pStream;
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};
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} // NameSpace plaYUVer
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#endif // __VIEWAREA_H__
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