manipulator.h

   1 /* $Id$
   2
   3 This file is part of R²C²
   4 Copyright © 2006-2008 Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #ifndef MANIPULATOR_H_
   9 #define MANIPULATOR_H_
  10
  11 #include <sigc++/sigc++.h>
  12
  13 class Designer;
  14 class Selection;
  15
  16 class Manipulator
  17 {
  18 private:
  19         enum Mode
  20         {
  21                 NONE,
  22                 MOVE,
  23                 ROTATE,
  24                 ELEVATE,
  25                 EXTEND
  26         };
  27
  28         struct MTrack
  29         {
  30                 R2C2::Track *track;
  31                 R2C2::Vector pos;
  32                 float rot;
  33
  34                 MTrack(R2C2::Track *);
  35         };
  36
  37         struct TrackOrder
  38         {
  39                 R2C2::Track *track;
  40                 bool rev;
  41
  42                 TrackOrder(R2C2::Track *t, bool r): track(t), rev(r) { }
  43         };
  44
  45 public:
  46         sigc::signal<void, const std::string &> signal_status;
  47         sigc::signal<void, bool> signal_done;
  48
  49 private:
  50         Designer &designer;
  51         Msp::Graphics::EventSource &event_source;
  52         Selection &selection;
  53         std::vector<MTrack> tracks;
  54         R2C2::Vector center;
  55
  56         R2C2::Vector gpointer;
  57         int pointer_y;
  58         Mode mode;
  59         R2C2::Vector move_origin;
  60         float angle;
  61         float rot_origin;
  62         int elev_origin;
  63         std::set<R2C2::Track *> neighbors;
  64         std::vector<R2C2::Track *> extend_tracks;
  65
  66 public:
  67         Manipulator(Designer &, Msp::Graphics::EventSource &, Selection &);
  68
  69         void start_move();
  70         void start_rotate();
  71         void start_elevate();
  72         bool start_extend();
  73         void duplicate();
  74         void flatten();
  75         void even_slope(bool =false);
  76         void connect();
  77         void cancel();
  78 private:
  79         void button_press(int, int, unsigned, unsigned);
  80         void pointer_motion(int, int);
  81         void selection_changed();
  82         void update_tracks();
  83         void update_neighbors();
  84         void set_slope(TrackOrder &, float, float);
  85         std::vector<R2C2::Track *> create_straight(const R2C2::Vector &, float, float, float);
  86 };
  87
  88 #endif