/*
 * Cinelerra :: Blue Banana - color modification plugin for Cinelerra-CV
 * Copyright (C) 2012-2013 Monty <monty@xiph.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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef BLUEBANANASLIDER_H
#define BLUEBANANASLIDER_H

#include "bccolors.h"
#include "pluginvclient.h"
#include "bluebanana.h"
#include "bluebananawindow.h"

class BluebananaSlider : public BC_SubWindow {
 public:
  BluebananaSlider(BluebananaMain *plugin,
                   BluebananaWindow *gui,
                   int x,
                   int y,
                   int w,
                   int h,
                   float minval,
                   float maxval);
  ~BluebananaSlider();

  virtual void update();
  virtual void render() {BluebananaSlider::update();};
  void reposition(int,int,int,int);
  virtual void update_histogram(float *,float *, float *, float *,int pixels);

  int active_bordercolor;
  int inactive_bordercolor;
  int dimtextcolor;
  int troughcolor;
  int slidercolor;
  int needlecolor;
  int sliderlit;
  int needlelit;
  int outline;

 protected:
  virtual void trough_color(float hdel, float vdel, float &r, float &g, float &b, float &a) {r=g=b=a=0;}
  virtual int handle_event(){ return 1; }
  virtual int button_press_event() { return 1; }
  int button_release_event();
  virtual int cursor_motion_event() { return 1; }

  BluebananaMain *plugin;
  BluebananaWindow *gui;

  friend class BluebannanaSliderSingle;
  friend class BluebannanaSliderBracket;
  friend class BluebannanaSliderCircular;
  friend class BluebannanaSliderGamma;
  friend class BluebannanaSliderFill;

  int fraction_to_pixel(float input);
  float pixel_to_fraction(int pixel);
  float pixel_to_value(int pixel);
  int value_to_pixel(float gamma);
  int minval;
  int maxval;

  void draw_midslider(int x, int lit);
  void draw_leftslider(int x, int lit);
  void draw_rightslider(int x, int lit);
  void draw_overslider(int x, int lit);
  void draw_topslider(int x, int lit);
  void draw_bottomslider(int x, int lit);

  int in_leftslider2(int px, int x);
  int in_midslider2(int px, int x);
  int in_rightslider2(int px, int x);
  int in_overslider2(int px, int x, int y);
  int in_topslider2(int px, int x, int y);
  int in_bottomslider2(int px, int x, int y);

  int in_leftslider(int px, int x, int y);
  int in_rightslider(int px, int x, int y);
  int in_midslider(int px, int x, int y);
  int in_overslider(int px, int x, int y);
  int in_topslider(int px, int x, int y);
  int in_bottomslider(int px, int x, int y);

  int drag;
  int xoff;
  int light;
  int highlight;

 protected:
  VFrame *trough;
  int troughcols;
  int troughlines;
  float *histval;
  float *histred;
  float *histgreen;
  float *histblue;

};

class BluebananaSliderSingle : public BluebananaSlider {
 public:
  BluebananaSliderSingle(BluebananaMain *plugin,
                         BluebananaWindow *gui,
                         int x,
                         int y,
                         int w,
                         int h,
                         float minval,
                         float maxval);
  ~BluebananaSliderSingle() {}

  virtual void update();
  virtual void render() {BluebananaSliderSingle::update();};

  friend class BluebananaHASlider;
  friend class BluebananaOASlider;

 protected:

  float val;
  float increment;

  virtual void trough_color(float hdel, float vdel, float &r, float &g, float &b, float &a) {}
  virtual int handle_event(){ return 1; }

  virtual int button_press_event();
  virtual int cursor_motion_event();

  void set_val(float val);
};

class BluebananaSliderBracket : public BluebananaSlider {
 public:
  BluebananaSliderBracket(BluebananaMain *plugin,
                          BluebananaWindow *gui,
                          int x,
                          int y,
                          int w,
                          int h,
                          float minval,
                          float maxval);
  ~BluebananaSliderBracket() {}

  virtual void update();
  virtual void render() {BluebananaSliderBracket::update();};

  friend class BluebananaSSSlider;
  friend class BluebananaVSSlider;

 protected:
  float loval;
  float midval;
  float hival;
  float overval;
  float increment;

  virtual void trough_color(float hdel, float vdel, float &r, float &g, float &b, float &a) {}
  virtual int handle_event(){ return 1; }

  int button_press_event();
  int cursor_motion_event();

  virtual void set_lo(float val);
  virtual void set_mid(float val);
  virtual void set_hi(float val);
  virtual void set_delta(float val);
  void set_over(float val);

};

class BluebananaSliderCircular : public BluebananaSliderBracket {
 public:
  BluebananaSliderCircular(BluebananaMain *plugin,
                           BluebananaWindow *gui,
                           int x,
                           int y,
                           int w,
                           int h,
                           float minval,
                           float maxval);
  ~BluebananaSliderCircular() {}

  virtual void update();

  friend class BluebananaHSSlider;

  virtual void trough_color(float hdel, float vdel, float &r, float &g, float &b, float &a) {}
  virtual int handle_event(){ return 1; }

  void set_lo(float val);
  void set_mid(float val);
  void set_hi(float val);
  void set_delta(float val);

};

class BluebananaSliderChannel : public BluebananaSlider {
 public:
  BluebananaSliderChannel(BluebananaMain *plugin,
                       BluebananaWindow *gui,
                       int x,
                       int y,
                       int w,
                       int h);
  ~BluebananaSliderChannel();

  virtual void update();
  virtual void render() {BluebananaSliderChannel::update();};
  virtual void update_histogram(float *,float *, float *, float *,int pixels);

  friend class BluebananaSASlider;
  friend class BluebananaVASlider;
  friend class BluebananaRASlider;
  friend class BluebananaGASlider;
  friend class BluebananaBASlider;
  friend class BluebananaYASlider;

  float increment;
  float zero;

 protected:

  float loval;
  float gamma;
  float hival;

  virtual void trough_color(float hval, float &r, float &g, float &b) {};
  virtual int handle_event(){ return 1; }

  int button_press_event();
  int cursor_motion_event();

  void set_lo(float lo);
  void set_hi(float hi);
  void set_mid(float mid);
  void set_range(float range);
  void set_gamma(float val);

  float pixel_to_gamma(float pixel);
  float gamma_to_pixel(float gamma);
  float pixel_to_value(float pixel);
  float value_to_pixel(float gamma);

 private:
  int t_x0;
  int t_x1;
  int t_x2;
  int t_x3;
  int t_w01;
  int t_w12;
  int t_w23;

};

class BluebananaSliderFill : public BluebananaSlider {
 public:
  BluebananaSliderFill(BluebananaMain *plugin,
                       BluebananaWindow *gui,
                       int x,
                       int y,
                       int w,
                       int h,
                       float minval,
                       float maxval,
                       float maxover);
  ~BluebananaSliderFill() {}

  virtual void update();
  virtual void render() {BluebananaSliderFill::update();};

  friend class BluebananaFSSlider;
  float increment;
 protected:

  float loval;
  float midval;
  float hival;
  float overval;

  virtual void trough_color(float hdel, float vdel, float &r, float &g, float &b, float &a) {};
  virtual int handle_event(){ return 1; }

  int button_press_event();
  int cursor_motion_event();

  void set_fill(float lo, float mid, float hi);
  void set_over(float val);
  void set_delta(float val);

  float pixel_to_over(int pixel);
  int over_to_pixel(float over);

  float maxover;


};

#endif