import java.awt.*;

public class Slider extends Widget
{
	public String label = "SLIDER";
	private double value = 0;
	
	//---------------- OBJECT CONSTRUCTOR
	
	public Slider(int x, int y, int width, int height) 
	{
		super(x, y, width, height);
	}
	
	//---------------- SET AND GET VALUE
	
	public void setValue(double value) 
	{
		this.value = Math.max(0, Math.min(1, value));
	}
	
	public double getValue() { return value; }
	
	//---------------- HANDLING DRAG EVENT
	
	public boolean drag(int x, int y) 
	{
		if (super.drag(x, y)) 
		{
			setValue((double)(x - this.x) / width);
			return true;
		}
		return false;
	}
	
	public void setLabel(String label)
	{
		this.label = label;
	}
	
	//---------------- RENDERING THE SLIDER
	
	public void render(Graphics g) 
	{
		g.setColor(bgColor);         // RENDER FRAME AND SLIDE
		g.fill3DRect(x,  y,   width,                    height,  false);
		g.fill3DRect(x+1,y+1, (int)((width-2) * value), height-2,true);
		
		g.setColor(fgColor);         // RENDER TEXT NAME
		g.drawString(label, x + 5, y + 14);
	}
}