Subversion Repositories DIN Is Noise

/*
* slit.h
* slit in Mondrian
* DIN Is Noise is copyright (c) 2006-2025 Jagannathan Sampath
* For more information, please visit http://dinisnoise.org/
*/

#ifndef __slit__
#define __slit__

#include <list>
#include "fader.h"

struct rect;

struct slit { // a slit on an edge of a box

  rect* boxes [2]; // slit can be on 2 boxes
  int edges [2]; // edges of the boxes that has the slit

  int type;
  enum {INVALID=-1, VERTICAL, HORIZONTAL};

  float start, mid, end;
  static float HALF_SIZE;
  static float MIN_HALF_SIZE;
  static float MIN_SIZE; // 2 * MIN_HALF_SIZE

  static int ref; // log

  double animt; // animation duration
  fader* fdr; // to animate slit
  static const double INITIAL_OPEN_CLOSE_TIME;

  slit ();
  slit (rect** bxs, float x, float y, float sz, fader* fdr = 0);
  ~slit ();
  int is_too_small ();
  inline void calc_mid () { mid = (start+end) / 2.0; }

  float anim_start, anim_end; // start,end at start of animation
  void toggle_anim ();
  void eval_anim ();

  int select; // selected?

};

struct slit_info {
  float x, y, half_size;
  int anim;
  fader fdr;
  slit_info ();
};

struct slit_lip_t { // for editing slit
  slit* slitt;
  float* lip;
  float* prev;
  float* cur;
  float low, high;
  slit_lip_t () { clear ();}
  void edit ();
  void clear ();
  void set_high (float h);
  void set_low (float l);
};

struct slit_drawer { // for drawing
  static const int MAX_LINES = 512;
  float* verts;
  int cur;
  int last;
  slit_drawer (int n = MAX_LINES);
  ~slit_drawer ();
  void add (float x, float y);
  void draw ();
};

void draw_slits (float start, float end, float level, int type, std::list<slit*>& _slits, slit_drawer& slit_drawerr);
rect* get_other_rect_of_slit (rect* ir, int e, float v, slit** os);
slit* slit_hit (rect* b, int e, float v);
slit* slit_hit (rect** bxs, float x, float y);
int get_slit_lip (slit_lip_t& sl, rect* R, int e, float v);

typedef std::list<slit*>::iterator slit_iterator;

#endif