104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
/* This file is a part of plaYUVer project
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* Copyright (C) 2014-2017 by Luis Lucas (luisfrlucas@gmail.com)
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* Joao Carreira (jfmcarreira@gmail.com)
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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 GridManager.h
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* \brief Function to create a grid in the images
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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 __GRIDMANAGER_H__
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#define __GRIDMANAGER_H__
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#include "config.h"
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#include "PlaYUVerAppDefs.h"
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#include <QRect>
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#include <QColor>
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#include <QPen>
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class QPoint;
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class QBitmap;
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class QPainter;
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/**
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*
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*/
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class GridManager
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{
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public:
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enum Style
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{
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IntersectionDot = 0,
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IntersectionCross,
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Dashed,
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Solid
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};
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GridManager();
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void drawGrid( QPixmap& image, const QRect& area, QPainter* painter );
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/**
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* @returns a QRect defined by the grid that contains the point (x, y).
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*/
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QRect rectContains( int x, int y ) const;
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/**
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* This is an overloaded member function, provided for convenience.
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* @returns a QRect defined by the grid that contains the QPoint pos.
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*/
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QRect rectContains( const QPoint& pos ) const;
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/**
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* @returns @c true if the point (x, y) is over a grid crossing, otherwise
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* returns @c false
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*/
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bool contains( int x, int y );
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/**
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* @returns @c true if the point (x, y) is near a grid crossing, otherwise
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* returns @c false.
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* @see @p nearPos()
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*/
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bool isNear( int x, int y );
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/**
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* This is an overloaded member function, provided for convenience.
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* @returns @c true if the given point is near a grid crossing, otherwise
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* returns @c false.
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* @see @p nearPos()
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*/
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bool isNear( const QPoint& pos );
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/**
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* @returns the grid crossing position that is near the point (x,y). If
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* either the x or y are iqual to -1 (default) than returns the last near
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* grid position found by @p isNear().
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*/
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QPoint nearPos( int x = -1, int y = -1 );
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private:
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UInt m_uiHSpace;
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UInt m_uiVSpace;
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QColor m_cGridColor;
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Style m_eGridStyle;
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QPoint m_nearPos;
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};
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#endif // __GRIDMANAGER_H__
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