mirror of
https://invent.kde.org/graphics/okular
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a490cc0cd7
* Bring QPixmap* back to make Albert happy ;) * Store only one QPixmap per page/size and rotate it directly * Rotate ObjectRects (boundary) * Rotate Annotations (point coordinates) * Don't reload pixmaps, ObjectRects and annotations on rotation svn path=/trunk/playground/graphics/okular/; revision=606371
334 lines
9.3 KiB
C++
334 lines
9.3 KiB
C++
/***************************************************************************
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* Copyright (C) 2004-05 by Enrico Ros <eros.kde@email.it> *
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* Copyright (C) 2005 by Piotr Szymanski <niedakh@gmail.com> *
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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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#ifndef _OKULAR_AREA_H_
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#define _OKULAR_AREA_H_
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#include <QtCore/QList>
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#include <QtGui/QColor>
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#include <QtGui/QPainterPath>
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#include <kdebug.h>
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#include "okular_export.h"
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class QPolygonF;
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class QRect;
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namespace Okular {
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class Annotation;
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class Link;
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class NormalizedShape;
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/**
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* @short A point in [0,1] coordinates (only used in annotations atm)
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*/
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class OKULAR_EXPORT NormalizedPoint
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{
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public:
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double x, y;
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NormalizedPoint();
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NormalizedPoint( double dX, double dY );
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NormalizedPoint( int ix, int iy, int xScale, int yScale );
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NormalizedPoint& operator=( const NormalizedPoint & p );
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void transform( const QMatrix &matrix );
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};
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/**
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* @short A rect in normalized [0,1] coordinates.
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*/
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class OKULAR_EXPORT NormalizedRect
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{
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public:
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double left, top, right, bottom;
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NormalizedRect();
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NormalizedRect( double l, double t, double r, double b );
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NormalizedRect( const QRect &r, double xScale, double yScale );
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NormalizedRect( const NormalizedRect & rect );
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bool isNull() const;
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bool contains( double x, double y ) const;
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bool intersects( const NormalizedRect & normRect ) const;
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bool intersects( double l, double t, double r, double b ) const;
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bool intersects( const NormalizedRect * r ) const;
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QRect geometry( int xScale, int yScale ) const;
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NormalizedRect operator| (const NormalizedRect & r) const;
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NormalizedRect& operator|= (const NormalizedRect & r);
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NormalizedRect& operator=( const NormalizedRect & r );
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bool operator==( const NormalizedRect & r ) const;
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void transform( const QMatrix &matrix );
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};
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// kdbgstream& operator << (kdbgstream &, const NormalizedRect &);
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/**
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* @short NormalizedRect that contains a reference to an object.
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*
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* These rects contains a pointer to a okular object (such as a link or something
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* like that). The pointer is read and stored as 'void pointer' so cast is
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* performed by accessors based on the value returned by objectType(). Objects
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* are reparented to this class.
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*
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* Type / Class correspondency tab:
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* - Link : class Link : description of a link
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* - Image : class Image : description of an image (n/a)
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* - Annotation: class Annotation: description of an annotation
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*/
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class OKULAR_EXPORT ObjectRect
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{
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public:
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// definition of the types of storable objects
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enum ObjectType { Link, Image, OAnnotation, SourceRef };
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// default constructor: initialize all parameters
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ObjectRect( double l, double t, double r, double b, bool ellipse, ObjectType typ, void * obj );
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ObjectRect( const NormalizedRect& x, bool ellipse, ObjectType type, void * pnt ) ;
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ObjectRect( const QPolygonF &poly, ObjectType type, void * pnt ) ;
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virtual ~ObjectRect();
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// query type and get a const pointer to the stored object
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inline ObjectType objectType() const { return m_objectType; }
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inline const void * pointer() const { return m_pointer; }
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const QPainterPath ®ion() const;
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virtual QRect boundingRect( double xScale, double yScale ) const;
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virtual bool contains( double x, double y, double /*xScale*/, double /*yScale*/ ) const;
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virtual void transform( const QMatrix &matrix );
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protected:
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ObjectType m_objectType;
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void * m_pointer;
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QPainterPath m_path;
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QPainterPath m_transformed_path;
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};
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class OKULAR_EXPORT AnnotationObjectRect : public ObjectRect
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{
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public:
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AnnotationObjectRect( Annotation * ann );
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virtual ~AnnotationObjectRect();
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virtual QRect boundingRect( double xScale, double yScale ) const;
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virtual bool contains( double x, double y, double xScale, double yScale ) const;
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inline Annotation * annotation() const { return m_ann; }
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virtual void transform( const QMatrix &matrix );
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private:
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Annotation * m_ann;
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};
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class OKULAR_EXPORT SourceRefObjectRect : public ObjectRect
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{
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public:
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SourceRefObjectRect( const NormalizedPoint& point, void * scrRef );
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virtual QRect boundingRect( double xScale, double yScale ) const;
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virtual bool contains( double x, double y, double xScale, double yScale ) const;
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private:
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NormalizedPoint m_point;
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};
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/**
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* Internal Storage: normalized colored highlight owned by id
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*/
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struct HighlightRect : public NormalizedRect
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{
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// searchID of the highlight owner
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int s_id;
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// color of the highlight
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QColor color;
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};
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/**
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* @short A regular area of NormalizedShape which normalizes a Shape
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*
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* Class NormalizedShape must have the following functions defined:
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* contains (double, double)
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* intersects(NormalizedShape)
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* isNull()
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* geometry(int,int)
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* operator | and |= which unite two NormalizedShapes
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*/
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template <class NormalizedShape, class Shape> class RegularArea :
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public QList<NormalizedShape>
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{
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public:
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bool contains( double x, double y ) const;
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bool contains( const NormalizedShape& shape ) const;
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bool intersects (const RegularArea<NormalizedShape,Shape> * area) const;
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bool intersects (const NormalizedShape& shape) const;
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void appendArea (const RegularArea<NormalizedShape,Shape> *area);
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void simplify ();
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bool isNull() const;
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QList<Shape>* geometry( int xScale, int yScale, int dx=0,int dy=0 ) const;
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};
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template <class NormalizedShape, class Shape>
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void RegularArea<NormalizedShape, Shape>::simplify()
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{
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#ifdef DEBUG_REGULARAREA
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int prev_end = this->count();
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#endif
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int end = this->count() - 1, x = 0;
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for ( int i = 0; i < end; ++i )
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{
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if ( (*this)[x]->intersects( (*this)[i+1] ) )
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{
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*((*this)[x]) |= *((*this)[i+1]);
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this->removeAt( i + 1 );
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--end;
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--i;
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}
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else
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{
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x=i+1;
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}
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}
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#ifdef DEBUG_REGULARAREA
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kDebug() << "from " << prev_end << " to " << this->count() << endl;
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#endif
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}
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template <class NormalizedShape, class Shape>
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bool RegularArea<NormalizedShape, Shape>::isNull() const
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{
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if (!this)
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return false;
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if (this->isEmpty())
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return false;
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foreach(const NormalizedShape& ns, *this)
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if (!(ns->isNull()))
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return false;
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return true;
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}
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template <class NormalizedShape, class Shape>
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bool RegularArea<NormalizedShape, Shape>::intersects (const NormalizedShape& rect) const
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{
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if (!this)
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return false;
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if (this->isEmpty())
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return false;
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foreach(const NormalizedShape& ns, *this)
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{
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if(!(ns->isNull()) && ns->intersects (rect))
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return true;
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}
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return false;
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}
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template <class NormalizedShape, class Shape>
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bool RegularArea<NormalizedShape, Shape>::intersects
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(const RegularArea<NormalizedShape,Shape> *area) const
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{
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if (!this)
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return false;
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if (this->isEmpty())
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return false;
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foreach(const NormalizedShape& ns, this)
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{
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foreach(const Shape& s, area)
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{
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if(!(ns->isNull) && ns->intersects (s))
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return true;
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}
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}
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return false;
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}
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template <class NormalizedShape, class Shape>
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void RegularArea<NormalizedShape, Shape>::appendArea
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(const RegularArea<NormalizedShape, Shape> *area)
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{
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if (!this)
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return false;
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foreach(const Shape& s, area)
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{
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this->append(s);
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}
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}
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template <class NormalizedShape, class Shape>
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bool RegularArea<NormalizedShape, Shape>::contains (double x, double y) const
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{
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if (!this)
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return false;
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if (this->isEmpty())
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return false;
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foreach(const NormalizedShape& ns, this)
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{
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if(ns->contains (x,y))
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return true;
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}
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return false;
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}
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template <class NormalizedShape, class Shape>
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bool RegularArea<NormalizedShape, Shape>::contains (const NormalizedShape& shape) const
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{
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if (!this)
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return false;
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if (this->isEmpty())
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return false;
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const QList<NormalizedShape*> * const lista=dynamic_cast<const QList<NormalizedShape*> * const >(this);
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return lista->contains(shape);
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}
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template <class NormalizedShape, class Shape>
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QList<Shape> *
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RegularArea<NormalizedShape, Shape>::geometry( int xScale, int yScale, int dx, int dy ) const
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{
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if (!this)
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return false;
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if (this->isEmpty())
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return 0;
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QList<Shape>* ret=new QList<Shape>;
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Shape t;
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foreach(const NormalizedShape& ns, *this)
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{
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t=ns->geometry(xScale,yScale);
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t.translate(dx,dy);
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ret->append(t);
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}
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return ret;
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}
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typedef RegularArea<NormalizedRect*,QRect> RegularAreaRect;
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class HighlightAreaRect : public RegularAreaRect {
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public:
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HighlightAreaRect( const RegularAreaRect *area = 0 );
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// searchID of the highlight owner
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int s_id;
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// color of the highlight
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QColor color;
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};
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}
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#endif
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