kig/objects/intersection_types.h

   1 // Copyright (C)  2003  Dominique Devriese <devriese@kde.org>
   2
   3 // This program is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU General Public License
   5 // as published by the Free Software Foundation; either version 2
   6 // of the License, or (at your option) any later version.
   7
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  16 // 02111-1307, USA.
  17
  18 #ifndef KIG_OBJECTS_INTERSECTION_TYPES_H
  19 #define KIG_OBJECTS_INTERSECTION_TYPES_H
  20
  21 #include "object_type.h"
  22
  23 /**
  24  * conic line intersection.  This also serves as circle-line
  25  * intersection, in which case it uses the easier way to calc
  26  * ...  There is no separate CircleLineIntersectionPoint, since the
  27  * difference between both types is quite small ( same number of
  28  * intersections with a line, for example.. ), and since with
  29  * transformations, Circles might dynamically change types to
  30  * Conics..
  31  */
  32 class ConicLineIntersectionType
  33   : public ArgsParserObjectType
  34 {
  35   ConicLineIntersectionType();
  36   ~ConicLineIntersectionType();
  37 public:
  38   static const ConicLineIntersectionType* instance();
  39   ObjectImp* calc( const Args& parents, const KigDocument& ) const;
  40   const ObjectImpType* resultId() const;
  41 };
  42
  43 /**
  44  * conic line 'other' intersection.  In case we already know one of the
  45  * two intersections
  46  */
  47 class ConicLineOtherIntersectionType
  48   : public ArgsParserObjectType
  49 {
  50   ConicLineOtherIntersectionType();
  51   ~ConicLineOtherIntersectionType();
  52 public:
  53   static const ConicLineOtherIntersectionType* instance();
  54   ObjectImp* calc( const Args& parents, const KigDocument& ) const;
  55   const ObjectImpType* resultId() const;
  56 };
  57
  58 class LineLineIntersectionType
  59   : public ArgsParserObjectType
  60 {
  61   LineLineIntersectionType();
  62   ~LineLineIntersectionType();
  63 public:
  64   static const LineLineIntersectionType* instance();
  65   ObjectImp* calc( const Args& parents, const KigDocument& ) const;
  66   const ObjectImpType* resultId() const;
  67 };
  68
  69 class LineCubicIntersectionType
  70   : public ArgsParserObjectType
  71 {
  72   LineCubicIntersectionType();
  73   ~LineCubicIntersectionType();
  74 public:
  75   static const LineCubicIntersectionType* instance();
  76   ObjectImp* calc( const Args& parents, const KigDocument& ) const;
  77   const ObjectImpType* resultId() const;
  78 };
  79
  80 class CircleCircleIntersectionType
  81   : public ArgsParserObjectType
  82 {
  83   CircleCircleIntersectionType();
  84   ~CircleCircleIntersectionType();
  85 public:
  86   static const CircleCircleIntersectionType* instance();
  87   ObjectImp* calc( const Args& parents, const KigDocument& ) const;
  88   const ObjectImpType* resultId() const;
  89 };
  90
  91 /**
  92  * arc line intersection.
  93  */
  94 class ArcLineIntersectionType
  95   : public ArgsParserObjectType
  96 {
  97   ArcLineIntersectionType();
  98   ~ArcLineIntersectionType();
  99 public:
 100   static const ArcLineIntersectionType* instance();
 101   ObjectImp* calc( const Args& parents, const KigDocument& ) const;
 102   const ObjectImpType* resultId() const;
 103 };
 104
 105 #endif