#include "SubViewWin.h"
#include <stdio.h>

SubViewWin::SubViewWin()
{
  // Create subwindows
  glutWinSubWindow();

  // yiq window
  yiqwin = new YIQWin();
  glutPositionWindow(20,20);
  
  // Double buffer
  glutInitDisplayMode(GLUT_DOUBLE);

  // Image window
  imagewin = new ImageSelectorWin();
  glutPositionWindow(240,20);

  // Set single buffer again
  glutInitDisplayMode(GLUT_SINGLE);

  // Histogram window
  histwin = new HistogramWin();
  glutPositionWindow(20,240);

  // Line View window
  linewin = new LinePlotWin();
  glutPositionWindow(20,480);
  
  // Set subsequent windows back to the root
  glutWinMainWindow();

  
}

SubViewWin::~SubViewWin()
{
  delete yiqwin;
  delete imagewin;
  delete histwin;
  delete linewin;
}

void SubViewWin::attachImage(ImageInfo info)
{
  // Add to image
  imagewin->attachImage(info);

  // Add to yiq
  yiqwin->dataImage=info;
  histwin->dataImage=info;
  linewin->dataImage=info;
  
  // Resize
  glutSetWindow(glWindowNum);
  int xresize = info.xsize+260;
  int yresize = info.ysize+40;
  if (yresize<720) yresize=720;
  
  glutReshapeWindow(xresize,yresize);
}

void SubViewWin::idle()
{
  if (yiqwin->xselection!= imagewin->xselection ||
      yiqwin->selectionsize!=imagewin->xselectionsize ||
      yiqwin->yselection!= imagewin->yselection)
    {
      yiqwin->xselection=imagewin->xselection;
      yiqwin->yselection=imagewin->yselection;
      yiqwin->selectionsize=imagewin->xselectionsize;
      glutSetWindow(yiqwin->glWindowNum);
      glutPostRedisplay();
    }
  if (histwin->xselection!= imagewin->xselection ||
      histwin->selectionsize!=imagewin->xselectionsize ||
      histwin->yselection!= imagewin->yselection)
    {
      histwin->xselection=imagewin->xselection;
      histwin->yselection=imagewin->yselection;
      histwin->selectionsize=imagewin->xselectionsize;
      glutSetWindow(histwin->glWindowNum);
      glutPostRedisplay();
    }
  if (linewin->xselection!= imagewin->xselection ||
      linewin->selectionsize!=imagewin->xselectionsize ||
      linewin->yselection!= imagewin->yselection)
    {
      linewin->xselection=imagewin->xselection;
      linewin->yselection=imagewin->yselection;
      linewin->selectionsize=imagewin->xselectionsize;
      glutSetWindow(linewin->glWindowNum);
      glutPostRedisplay();
    }
}

void SubViewWin::display()
{
  glClearColor(1,1,1,1);
  glClear(GL_COLOR_BUFFER_BIT);

  glutSetWindow(linewin->glWindowNum);
  glutPostRedisplay();
  glutSetWindow(histwin->glWindowNum);
  glutPostRedisplay();
  glutSetWindow(yiqwin->glWindowNum);
  glutPostRedisplay();
  glutSetWindow(imagewin->glWindowNum);
  glutPostRedisplay();
}

void SubViewWin::keyboard(unsigned char key, int x, int y)
{
  if (key=='q' || key==27)
    exit(0);
  if (key=='m')
    {
      // Print the current selected rectangle
      int l,t,r,b;
      l = imagewin->xselection - imagewin->xselectionsize;
      r = imagewin->xselection + imagewin->xselectionsize;
      t = imagewin->yselection - imagewin->xselectionsize;
      b = imagewin->yselection + imagewin->xselectionsize;
      printf ("%d  %d  %d  %d \n",l,t/2,r,b/2);
    }
}