Subversion Repositories DIN Is Noise

/*
* mouse_slider.h
* DIN Is Noise is copyright (c) 2006-2020 Jagannathan Sampath
* For more information, please visit https://dinisnoise.org/
*/

#ifndef __mouse_slider
#define __mouse_slider

#include "widget.h"
#include "arrow_button.h"

#include <list>

struct mouse_slider_listener {
  std::string name;
  enum {X, Y, NONE};
  int orient;
  mouse_slider_listener ();
  virtual void moused (int dir, double scl = 1.0) = 0;
  virtual void after_slide () {}
};

struct mouse_slider : widget {

  int sz, sz_2, szn, szn_1;
  arrow_button axl, axr;
  arrow_button ayb, ayt;
  void update_x_arrows ();
  void update_y_arrows ();

  static const int margin = 10;
  int lowx, highx, midx;
  int lowy, highy, midy;
  int prevx, prevy;
  int initx, inity, inityy;

  std::list<mouse_slider_listener*> mslx, msly;
  int nmslx, nmsly;
  int dx, dy;
  //int totx, toty;

  int justx ();
  int justy ();

  int active;

  int lmb_clicked;

  mouse_slider ();
  ~mouse_slider ();
  int handle_input ();

  int pts [4];
  void draw ();

  void add (mouse_slider_listener* sl);
  void remove (mouse_slider_listener* sl);
  int activate ();
  int deactivate ();

  double base;
  double scale;
  double delta;

};

void activate_mouse_slider (double delta = 1.0);
int mouse_slider_active ();
void cant_mouse_slide ();
extern mouse_slider mouse_slider0;

#define MAKE_MOUSE_SLIDER_LISTENER(name,var) struct name : mouse_slider_listener { void after_slide (); void moused (int dir, double scl); }; name var;
#define AFTER_SLIDE(scope,name) void scope::name::after_slide ()
#define MOUSED(scope,name) void scope::name::moused (int dir, double scl)

#endif