// FLTK demo program for CS559
// Fall, 2000, Mark Pingel

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Check_Button.H>
#include <FL/Fl_Light_Button.H>


// Create pointers to a check button and a light button
Fl_Check_Button* check_b;
Fl_Light_Button* light_b;



// Callback function for the check button. 
// Turn the label red and change it to read Checked if the 
// check button is checked.
void checkbutton_cb(Fl_Widget* w) {
	Fl_Check_Button* flcb = ((Fl_Check_Button*)w);
	if ( flcb->value() == 1 ) {
		flcb->labelcolor(FL_RED);
		flcb->label("Checked");
		
	}
	else {
		flcb->labelcolor(FL_CYAN);
		flcb->label("Check Button");
	}	
	flcb->damage(1);
	flcb->parent()->redraw();
}

// Callback function for the light button. 
// Turn the label yellow and change it to read Light On if the 
// light button is pressed.  A yellow square will also appear in
// the box to the left of the label if selected
void lightbutton_cb(Fl_Widget* w) {
	Fl_Light_Button* fllb = ((Fl_Light_Button*)w);
	if ( fllb->value() == 1 ) {
		check_b->hide();
	}
	else {
		check_b->show();
	}	
	fllb->damage(1);
	fllb->parent()->redraw();
}


int main(int argc, char ** argv) {       
	// Create a window to add our buttons to
	Fl_Window* w = new Fl_Window(190,80);
	
	w->label("559 Demo Window");
	// Begin adding children to this window
	w->begin();

		// Instantiate the check button
		// x , y , width, height, label
		check_b = new Fl_Check_Button(25,15,140,20,"Check Button");
		// Instantiate the light button
		// x , y , width, height, label
		light_b = new Fl_Light_Button(25,45,140,20,"Hide Check Button");

		// Make all of the default colors for the labels cyan
		check_b->labelcolor(FL_CYAN);
		light_b->labelcolor(FL_CYAN);

		// Register the callbacks for each of the buttons
		check_b->callback(checkbutton_cb);
		light_b->callback(lightbutton_cb);

	// Stop adding children to this window
	w->end();
	// Display the window
	w->show();
	// Run
	return Fl::run();
	
}