/*
	GWEN
	Copyright (c) 2010 Facepunch Studios
	See license in Gwen.h
*/


#include "Gwen/Controls/Dragger.h"

using namespace Gwen;
using namespace Gwen::ControlsInternal;



GWEN_CONTROL_CONSTRUCTOR( Dragger )
{
	m_pTarget = NULL;
	SetMouseInputEnabled( true );
	m_bDepressed = false;
}

void Dragger::OnMouseClickLeft( int x, int y, bool bDown )
{
	if ( !m_pTarget ) return;

	if ( bDown )
	{
		m_bDepressed = true;
		m_HoldPos = m_pTarget->CanvasPosToLocal( Gwen::Point( x, y ) );
		Gwen::MouseFocus = this;
	}
	else
	{
		m_bDepressed = false;

		Gwen::MouseFocus = NULL;
	}
}

void Dragger::OnMouseMoved( int x, int y, int /*deltaX*/, int /*deltaY*/ )
{
	if ( !m_pTarget ) return;
	if ( !m_bDepressed ) return;

	Gwen::Point p = Gwen::Point( x - m_HoldPos.x, y - m_HoldPos.y );
	
	// Translate to parent
	if ( m_pTarget->GetParent() )
		p = m_pTarget->GetParent()->CanvasPosToLocal( p );
 
	//m_pTarget->SetPosition( p.x, p.y );
	m_pTarget->MoveTo( p.x, p.y );
	onDragged.Call( this );
}

void Dragger::Render( Skin::Base* /*skin*/ )
{
	//skin->DrawButton(this,false,false);
}