#include <colorWin.h>
#include <algorithm>

using std::min; 
using std::max; 

void ColorWin::inicializarValores()
{
  red = green = blue = 0;
  margen = 4;
}

ColorWin::ColorWin(int x, int y, int w, int h, char *title) : Fl_Window(x,y,w,h,title)
{
  inicializarValores();

  crearBarraMenu();

  crearValueSliders();
  crearValueInputs();
  crearFloatInputs();
  crearOutputs();

  // setCallbacks();

  crearCajaColor();

  end();
  show();
                  
}

void ColorWin::finCB(Fl_Widget *w, void *data) 
{
  w->window()->hide();
}

void ColorWin::updateAll() 
{
	updateBoxColor();
	// updateValueSliders();
	// ...
	// ...
	// ...
}

void ColorWin::updateBoxColor() 
{
  boxColor->color(fl_rgb_color(red, green, blue));
  boxColor->redraw();
}

void ColorWin::updateRealInputs() 
{
	// ...
}

void ColorWin::updateOutputs() 
{
  char s[50];

  sprintf(s,"%02X",red);
  outRed->value((char *)s);

  sprintf(s,"%02X",green);
  outGreen->value((char *)s);

  sprintf(s,"%02X",blue);
  outBlue->value((char *)s);
}

void ColorWin::setRGB(int r, int g, int b)
{
   static int MIN = 0;
   static int MAX = 255;

   // red = ...
   // green = ...
   // blue = max(...,min(...,MAX));

   // ...
}

void ColorWin::setColor(int color, uchar widgetValue)
{
  switch(color)
    {
    case FL_RED: red = widgetValue; break;
    case FL_GREEN: green = widgetValue; break;
    case FL_BLUE: blue = widgetValue; break;
    }
}

void ColorWin::slidersCB (Fl_Widget *w, void *data) 
{
  Fl_Value_Slider *vs = (Fl_Value_Slider *)w;
  int color = (int) data;
  ColorWin *win = (ColorWin *)vs->parent();

  win->setColor(color,(uchar)vs->value());

  win->updateBoxColor();
  // ...
  // ...
  // ...
}

void ColorWin::crearValueSliders () {

  int bx = margen, by= barraMenu->h() + margen, bw = 270, bh = 100;
  int vsx = bx + margen + 14, vsy = by + margen, vsw = bw-2*margen-14, vsh = 28;
  int verticalStep= vsh + margen;

  boxRGB = new Fl_Box(bx, by, bw, bh);
  boxRGB->box(FL_EMBOSSED_BOX);

  vsRed = new Fl_Value_Slider(vsx, vsy, vsw, vsh, "R");
  vsRed->type      (FL_HOR_SLIDER);
  vsRed->maximum   (255);
  vsRed->step      (1);
  vsRed->align     (FL_ALIGN_LEFT);
  vsRed->labelcolor(FL_RED);
    
  // vsGreen = ...
  // ...
  // ...
  // ...
  // ...
  // ...
  
  // vsBlue = ...
  // ...
  // ...
  // ...
  // ...
  // ...
}

void ColorWin::crearValueInputs () 
{
  int bx = margen, by = barraMenu->h() + 2*margen + 100, bw = 82, bh = 100;
  int vix = bx + margen + 36, viy = by + margen, viw = 36, vih = 28;
  int verticalStep = vih + margen;

  boxValRGB = new Fl_Box(bx, by, bw, bh);
  boxValRGB->box(FL_EMBOSSED_BOX);

  viRed= new Fl_Value_Input(vix, viy, viw, vih, "R ent");
  viRed->labelcolor(FL_RED);
  viRed->maximum(255);
  viRed->step(1);
  
  // viGreen = ...
  // ...
  // ...
  // ...
  // ...

  // viBlue = new ...
  // ...
  // ...
  // ...
  // ...
}

void ColorWin::crearFloatInputs () 
{
  int bx = 2*margen+82, by = barraMenu->h() + 2*margen + 100, bw = 105, bh = 100;
  int fix = bx + 2*margen + 40, fiy = by + margen, fiw = 50, fih = 28;
  int verticalStep = fih + margen;

  boxRealRGB = new Fl_Box(bx, by, bw, bh);
  boxRealRGB->box(FL_EMBOSSED_BOX);

  fiRed = new Fl_Value_Input (fix, fiy, fiw, fih, "R real");
  fiRed->labelcolor(FL_RED);
  fiRed->bounds(0.0f, 1.0f);
  fiRed->step(1.0f/256.0f);

  // fiGreen = new ...
  // ...
  // ...
  // ...
  // ...

  // fiBlue = ...
  // ...
  // ...
  // ...
  // ...
}

void ColorWin::crearOutputs () 
{
  int bx = 3*margen + 84 + 104, by = barraMenu->h() + 2*margen + 100, bw = 74, bh = 100;
  int ix = bx + margen + 42, iy = by + margen, iw = 26, ih = 28;
  int verticalStep = ih + margen;

  boxHexRGB = new Fl_Box(bx, by, bw, bh);
  boxHexRGB->box(FL_EMBOSSED_BOX);

  outRed = new Fl_Output (ix, iy, iw, ih, "R hex");
  outRed->labelcolor(FL_RED);
  outRed->box(FL_FLAT_BOX);
  outRed->color(FL_GRAY);
  outRed->value("00");

  // outGreen = ...
  // ...
  // ...
  // ...
  // ...
  
  // outBlue = new Fl_Output (ix, iy+2*verticalStep, iw, ih, "B hex");
  // ...
  // ...
  // ...
  // ...
}

void ColorWin::setCallbacks()
{
  // de los 'sliders'
  // vsRed->callback(slidersCB, ...);
  // vsGreen->callback(...);
  // vsBlue...
  
  // de los 'int input' ([0,255])
  // ...
  // ...
  // ...
  
  // de los 'float input' ([0,1])
  // fiRed->callback(...)
  // ...
  // ...
  fiRed->when(FL_WHEN_CHANGED);
  fiGreen->when(FL_WHEN_CHANGED);
  fiBlue->when(FL_WHEN_CHANGED);
}

void ColorWin::crearBarraMenu()
{
  Fl_Menu_Item menu[] =
  {              
    {"&Fichero", FL_ALT+'f', 0, 0, FL_SUBMENU},
      {"&Salir", FL_ALT+'s', finCB},
      {0},
    {"&Ayuda", FL_ALT+'a', 0, 0, FL_SUBMENU},
      {"Acerca de"},
      {0},
    {0}
  };
  barraMenu = new Fl_Menu_Bar(0, 0, 640, 30);
  // ...
}

void ColorWin::crearCajaColor()
{
  int mw = w(), mh = barraMenu->h(); 
  boxColor = new Fl_Box (w()-margen-200, mh+margen, 200, h()-mh-2*margen);
  boxColor->box(FL_EMBOSSED_BOX);
  boxColor->color(fl_rgb_color (red, green, blue));
}