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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kpovmodeler/pmviewstructure.h
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+//-*-C++-*-
+/*
+**************************************************************************
+ description
+ --------------------
+ copyright : (C) 2000-2001 by Andreas Zehender
+ email : zehender@kde.org
+**************************************************************************
+
+**************************************************************************
+* *
+* This program is free software; you can redistribute it and/or modify *
+* it under the terms of the GNU General Public License as published by *
+* the Free Software Foundation; either version 2 of the License, or *
+* (at your option) any later version. *
+* *
+**************************************************************************/
+
+
+#ifndef PMVIEWSTRUCTURE_H
+#define PMVIEWSTRUCTURE_H
+
+#include "pmface.h"
+#include "pmpoint.h"
+#include "pmline.h"
+#include "pmmatrix.h"
+#include "pmobject.h"
+#include "pmvector.h"
+
+/**
+ * Represents the view structure (points, lines, faces) of an object
+ *
+ * Faces are not implemented yet but are needed later to calculate the view
+ * structure of csg objects
+ */
+
+class PMViewStructure
+{
+ friend class PMObject;
+public:
+ /**
+ * Creates an empty view structure
+ */
+ PMViewStructure( );
+ /**
+ * Creates a view structure with n points, l lines and f faces.
+ */
+ PMViewStructure( unsigned int n, unsigned int l, unsigned int f = 0 );
+ /**
+ * Creates a copy of the view structure. m_points, m_lines and m_faces are shared
+ */
+ PMViewStructure( const PMViewStructure& vs );
+ /**
+ * Creates a copy of the view structure. m_points, m_lines anf m_faces are shared
+ */
+ PMViewStructure( const PMViewStructure* vs );
+
+ /**
+ * Returns a reference to the array of points
+ */
+ PMPointArray& points( ) { return m_points; }
+ /**
+ * Returns a reference to the array of lines
+ */
+ PMLineArray& lines( ) { return m_lines; }
+ /**
+ * Returns a refrence to the array of faces
+ */
+ PMFaceArray& faces( ) { return m_faces; }
+ /**
+ * Returns the parameter key
+ */
+ int parameterKey( ) const { return m_parameterKey; }
+ /**
+ * Sets the parameter key
+ */
+ void setParameterKey( int k ) { m_parameterKey = k; }
+
+ /**
+ * Assigns the view structure to this view structure.
+ * The points and lines are shared
+ */
+ PMViewStructure& operator = ( const PMViewStructure& vs );
+ /**
+ * Returns true if the view structures share the same points and lines
+ */
+ bool operator == ( const PMViewStructure& vs ) const;
+ /**
+ * Returns false if the view structures share the same points and lines
+ */
+ bool operator != ( const PMViewStructure& vs ) const;
+protected:
+ /**
+ * Not transformed points, can be shared between PMObjects
+ * of the same type. m_points.data( ) can be used as vertex array.
+ *
+ * Optimized for fast rendering.
+ */
+ PMPointArray m_points;
+ /**
+ * Lines to display. m_lines.data( ) can be used by glDrawElements.
+ *
+ * Optimized for fast rendering.
+ */
+ PMLineArray m_lines;
+ /**
+ * Faces to display.
+ */
+ PMFaceArray m_faces;
+ /**
+ * View structure parameter key.
+ *
+ * Each class can have parameters that modifies the number of lines and
+ * points of a view structure (detail level).
+ *
+ * The framework determines if the view structure is up to date by
+ * comparing the key with the parameter key of the corresponding class.
+ */
+ int m_parameterKey;
+};
+
+/**
+ * Class for bounding boxes of PMObjects
+ */
+class PMBoundingBox
+{
+public:
+ /**
+ * Creates a bounding box with min and max vectors
+ */
+ PMBoundingBox( const PMVector& min, const PMVector& max );
+ /**
+ * Creates an invalid bounding box. @ref PMObject::boundingBox() returns
+ * an invalid bounding box, if the object has none.
+ */
+ PMBoundingBox( );
+
+ /**
+ * Returns the minimum coordinates
+ */
+ PMVector min( ) const { return m_min; }
+ /**
+ * Returns the maximum coordinates
+ */
+ PMVector max( ) const { return m_max; }
+ /**
+ * Returns the minumum x coordinate
+ */
+ double minX( ) const { return m_min.x( ); }
+ /**
+ * Returns the minumum y coordinate
+ */
+ double minY( ) const { return m_min.y( ); }
+ /**
+ * Returns the minumum z coordinate
+ */
+ double minZ( ) const { return m_min.z( ); }
+ /**
+ * Returns the maximum x coordinate
+ */
+ double maxX( ) const { return m_max.x( ); }
+ /**
+ * Returns the maximum y coordinate
+ */
+ double maxY( ) const { return m_max.y( ); }
+ /**
+ * Returns the maximum z coordinate
+ */
+ double maxZ( ) const { return m_max.z( ); }
+ /**
+ * Sets the minimum coordinates
+ */
+ void setMin( const PMVector& min ) { m_min = min; }
+ /**
+ * Sets the maximum coordinates
+ */
+ void setMax( const PMVector& max ) { m_max = max; }
+ /**
+ * Sets the minimum x coordinate
+ */
+ void setMinX( const double c ) { m_min.setX( c ); }
+ /**
+ * Sets the minimum y coordinate
+ */
+ void setMinY( const double c ) { m_min.setY( c ); }
+ /**
+ * Sets the minimum z coordinate
+ */
+ void setMinZ( const double c ) { m_min.setZ( c ); }
+ /**
+ * Sets the maximum x coordinate
+ */
+ void setMaxX( const double c ) { m_max.setX( c ); }
+ /**
+ * Sets the maximum y coordinate
+ */
+ void setMaxY( const double c ) { m_max.setY( c ); }
+ /**
+ * Sets the maximum z coordinate
+ */
+ void setMaxZ( const double c ) { m_max.setZ( c ); }
+
+ /**
+ * Returns true, if the bounding box is valid
+ */
+ bool isValid( ) const { return m_bValid; }
+ /**
+ * Sets the valid flag to v
+ */
+ void setValid( bool v ) { m_bValid = v; }
+
+ /**
+ * Merges the two bounding boxes
+ */
+ void mergeWith( const PMBoundingBox& box );
+
+private:
+ bool m_bValid;
+ PMVector m_min, m_max;
+};
+
+#endif