// all the mouse and kbd handling stuff

boolean drag_comp = false;
int drag_comp_mousex = 0;
boolean drag_frame = false;
int drag_frame_mousex = 0;

void keyPressed(){
  if (keyCode == RIGHT){
    if (comp_focus == 1){ // nudge the composite
      theframe = constrain(theframe+1,0,numframes-1);
      loadFrame();
    } 
    else if (frame_focus == 1){ // nudge the frame
      thecomposite = constrain(thecomposite+1,0,numslices-1);
      loadComposite();
    }  
    updateRects();
  }

  else if (keyCode == LEFT){
    if (comp_focus == 1){ // nudge the composite
      theframe = constrain(theframe-1,0,numframes-1);
      loadFrame();
    } 
    else if (frame_focus == 1){ // nudge the frame
      thecomposite = constrain(thecomposite-1,0,numslices-1);
      loadComposite();
    }  
    updateRects();
  }

}

void mousePressed(){
  if (inRect(mouseX,mouseY,compRect)){ // mouse pressed in the composite crop
    drag_comp = true;
    drag_comp_mousex = mouseX;
  } 
  // else if (inRect(mouseX,mouseY,(width*0.5)-(frame_width*0.5),ymargin+composite_height+midspace,frame_width,frame_height)){
  else if (inRect(mouseX,mouseY,frameRect)){
    drag_frame = true;
    drag_frame_mousex = mouseX;
  }
}

void mouseDragged(){
  if (drag_comp){
    theframe = constrain(theframe-(mouseX-drag_comp_mousex),0,numframes-1);
    drag_comp_mousex = mouseX;
  } 
  else if (drag_frame){
    thecomposite = constrain(thecomposite-(mouseX-drag_frame_mousex),0,numslices-1);
    drag_frame_mousex = mouseX;
  }
  updateRects();
}

void mouseMoved(){
  if (inRect(mouseX,mouseY,compRect)) comp_focus = 1; // switch focus
  else if (inRect(mouseX,mouseY,frameRect)) frame_focus = 1;
  else {
    comp_focus = 0;
    frame_focus = 0;
  }
}

void mouseReleased(){
  if (drag_comp){
    loadFrame();
    drag_comp = false;
  } else if (drag_frame){
    loadComposite();
    drag_frame = false;
  }
}

// rects stuff here

boolean inRect(float x_in, float y_in, Rect testRect){
  boolean hit = false;
  if ((x_in > testRect.rx) && (y_in > testRect.ry) && (x_in < (testRect.rx+testRect.rwidth)) && (y_in < (testRect.ry+testRect.rheight))){
    hit = true;
  }
  return hit;
}

void updateRects(){
  compRect.rx = (width*0.5)-(theframe);//constrain((width*0.5)-(theframe*0.5),-10,240);
  compRect.rwidth = composite_width; //720;//constrain(min(240+(theframe*0.5),240+((numframes-theframe)*0.5)),240,720);
  frameRect.rx = (width*0.5)-(thecomposite);
}


class Rect{
  float rx;
  float ry;
  float rwidth;
  float rheight;

  Rect(float _x, float _y, float _w, float _h){
    rx = _x;
    ry = _y;
    rwidth = _w;
    rheight = _h;
  }
}