//http://processing.org/learning/topics/buttons.html

void update(int x, int y)
{  
  if(locked == false) {
    rect1.update();
    rect2.update();
  } 
  else {
    locked = false;
  }

  if(mousePressed) {
    if(rect2.pressed()) {
      currentcolor = rect2.basecolor;
      if(bgcolor==0){bgcolor=255;}else{bgcolor=0;}
      if(txcolor==0){txcolor=255;}else{txcolor=0;}
      setup();
    } 
    
    if(rect1.pressed()) {
      currentcolor = rect1.basecolor;
      fill(bgcolor);
      stroke(bgcolor);
      rect(xoff-20,40,15*grid+20,80);
    } 

  }
}


class Button
{
  int x, y;
  int size;
  color basecolor, highlightcolor;
  color currentcolor;
  boolean over = false;
  boolean pressed = false;   

  void update() 
  {
    if(over()) {
      currentcolor = highlightcolor;
    } 
    else {
      currentcolor = basecolor;
    }
  }

  boolean pressed() 
  {
    if(over) {
      locked = true;
      return true;
    } 
    else {
      locked = false;
      return false;
    }    
  }

  boolean over() 
  { 
    return true; 
  }

  boolean overRect(int x, int y, int width, int height) 
  {
    if (mouseX >= x && mouseX <= x+width && 
      mouseY >= y && mouseY <= y+height) {
      return true;
    } 
    else {
      return false;
    }
  }

  boolean overCircle(int x, int y, int diameter) 
  {
    float disX = x - mouseX;
    float disY = y - mouseY;
    if(sqrt(sq(disX) + sq(disY)) < diameter/2 ) {
      return true;
    } 
    else {
      return false;
    }
  }

}

class CircleButton extends Button
{ 
  CircleButton(int ix, int iy, int isize, color icolor, color ihighlight) 
  {
    x = ix;
    y = iy;
    size = isize;
    basecolor = icolor;
    highlightcolor = ihighlight;
    currentcolor = basecolor;
  }

  boolean over() 
  {
    if( overCircle(x, y, size) ) {
      over = true;
      return true;
    } 
    else {
      over = false;
      return false;
    }
  }

  void display() 
  {
    stroke(255);
    fill(currentcolor);
    ellipse(x, y, size, size);
  }
}

class RectButton extends Button
{
  RectButton(int ix, int iy, int isize, color icolor, color ihighlight) 
  {
    x = ix;
    y = iy;
    size = isize;
    basecolor = icolor;
    highlightcolor = ihighlight;
    currentcolor = basecolor;
  }

  boolean over() 
  {
    if( overRect(x, y, size, size) ) {
      over = true;
      return true;
    } 
    else {
      over = false;
      return false;
    }
  }

  void display() 
  {
    stroke(255);
    fill(currentcolor);
    rect(x, y, size, size);
  }
}

void redogrid()
{
  if(togglegrid) fill(255);
  else fill(0);
  stroke(255);
  rect(xoff,grid_ytop,grid*15,grid*10);
  int num;
  int denom;
  float sclhr;
  for ( int i = 0; i< images.length; i++ )
    {
    counter=counterstart;
  for (int x = xoff; x < 16*grid; x=x+grid) 
    {
      if(TimeDewArray[counter][i]<5) // if no values (or very close) then just draw outline
      {
        stroke(153);
        fill(0);
        rect(x,i*grid-1+grid_ytop,sz,sz);
        stroke(0,0);
      }
      else
      {
      if(togglegrid) tint(255,255,255,hrdewAlpha[counter][i]);  
      else tint(colorArray[i][0],colorArray[i][1],colorArray[i][2],hrdewAlpha[counter][i]);  
      image(images[i],x,i*grid+grid_ytop,sz,sz);
      }
      counter++;
    }
}
if(togglegrid) togglegrid = false;
  else if(!togglegrid) togglegrid = true;
}