// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010  Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.


#include "nel/gui/dbgroup_select_number.h"
#include "nel/gui/view_text.h"
#include "nel/gui/view_bitmap.h"
#include "nel/gui/ctrl_button.h"
#include "nel/gui/interface_property.h"
#include "nel/gui/action_handler.h"

using namespace std;
using namespace NL3D;
using namespace NLMISC;

namespace NLGUI
{
	NLMISC_REGISTER_OBJECT(CViewBase, CDBGroupSelectNumber, std::string, "select_number");

	// ***************************************************************************
	CDBGroupSelectNumber::CDBGroupSelectNumber(const TCtorParam &param) :
	CInterfaceGroup(param)
	{
		_SlotNumber= NULL;
		_TextNumber= NULL;
		_ButtonUp= NULL;
		_ButtonDown= NULL;
		_LoopMode= true;
		_MinValue= 0;
		_MaxValue= 9;
		_DeltaMultiplier= 1;
	}

	// ***************************************************************************
	CDBGroupSelectNumber::~CDBGroupSelectNumber()
	{
	}

	std::string CDBGroupSelectNumber::getProperty( const std::string &name ) const
	{
		if( name == "value" )
		{
			if( _Number.getNodePtr() != NULL )
				return _Number.getNodePtr()->getFullName();
			else
				return "";
		}
		else
		if( name == "loop" )
		{
			return toString( _LoopMode );
		}
		else
		if( name == "min" )
		{
			return toString( _MinValue );
		}
		else
		if( name == "max" )
		{
			return toString( _MaxValue );
		}
		else
		if( name == "delta" )
		{
			return toString( _DeltaMultiplier );
		}
		else
			return CInterfaceGroup::getProperty( name );
	}

	// ***************************************************************************
	bool CDBGroupSelectNumber::parse (xmlNodePtr cur, CInterfaceGroup *parentGroup)
	{
		if(!CInterfaceGroup::parse(cur, parentGroup))
			return false;

		// read params
		CXMLAutoPtr ptr;
		ptr = xmlGetProp (cur, (xmlChar*)"value");
		if ( ptr )
			_Number.link ( ptr );
		else
		{
			nlinfo ("no value in %s", _Id.c_str());
			return false;
		}

		// Loop, min and max
		_LoopMode= false;
		ptr= xmlGetProp (cur, (xmlChar*)"loop");
		if(ptr)	_LoopMode= convertBool(ptr);
		_MinValue = 0;
		ptr= xmlGetProp (cur, (xmlChar*)"min");
		if(ptr)	fromString((const char*)ptr, _MinValue);
		_MaxValue = 0;
		ptr= xmlGetProp (cur, (xmlChar*)"max");
		if(ptr)	fromString((const char*)ptr, _MaxValue);
		ptr= xmlGetProp (cur, (xmlChar*)"delta");
		if(ptr)	fromString((const char*)ptr, _DeltaMultiplier);

		// set min val in DB
		_Number.setSInt32(_MinValue);

		return true;
	}

	// ***************************************************************************
	void CDBGroupSelectNumber::setup()
	{
		if (_SlotNumber != NULL)
			return;

		// bind to the controls.
		_SlotNumber= dynamic_cast<CViewBitmap*>(CInterfaceGroup::getView("slot_number"));
		_TextNumber= dynamic_cast<CViewText*>(CInterfaceGroup::getView("number"));
		_ButtonUp= dynamic_cast<CCtrlBaseButton*>(CInterfaceGroup::getCtrl("arrow_up"));
		_ButtonDown= dynamic_cast<CCtrlBaseButton*>(CInterfaceGroup::getCtrl("arrow_down"));

		// checks
		if(_SlotNumber==NULL)
			nlwarning("Interface: SelectNumberGroup: bitmap 'slot_number' missing or bad type");
		if(_TextNumber==NULL)
			nlwarning("Interface: SelectNumberGroup: text view 'number' missing or bad type");
		if(_ButtonUp==NULL)
			nlwarning("Interface: SelectNumberGroup: button 'arrow_up' missing or bad type");
		if(_ButtonDown==NULL)
			nlwarning("Interface: SelectNumberGroup: button 'arrow_down' missing or bad type");
		if(_SlotNumber==NULL || _TextNumber==NULL || _ButtonUp==NULL || _ButtonDown==NULL)
			return;

		// actions
		_ButtonUp->setActionOnLeftClick("sn_up");
		_ButtonDown->setActionOnLeftClick("sn_down");
	}


	// ***************************************************************************
	void CDBGroupSelectNumber::updateCoords ()
	{
		setup();
		CInterfaceGroup::updateCoords();
	}



	void CDBGroupSelectNumber::checkCoords()
	{
		if(_TextNumber)
			_TextNumber->setText( toString(_Number.getSInt32()) );
		CInterfaceGroup::checkCoords();
	}

	// ***************************************************************************
	void CDBGroupSelectNumber::draw ()
	{
		CInterfaceGroup::draw();
	}

	// ***************************************************************************
	void CDBGroupSelectNumber::clearViews ()
	{
		CInterfaceGroup::clearViews();
	}

	// ***************************************************************************
	bool CDBGroupSelectNumber::handleEvent (const NLGUI::CEventDescriptor &event)
	{
		if (event.getType() == NLGUI::CEventDescriptor::mouse)
		{
			const NLGUI::CEventDescriptorMouse &eventDesc = (const NLGUI::CEventDescriptorMouse &)event;
			if (isIn(eventDesc.getX(), eventDesc.getY()))
			{
				if (eventDesc.getEventTypeExtended() == NLGUI::CEventDescriptorMouse::mousewheel)
				{
					changeValue (eventDesc.getWheel());
					return true;
				}
			}
		}
		if (CInterfaceGroup::handleEvent(event)) return true;
		return false;
	}


	// ***************************************************************************
	void CDBGroupSelectNumber::changeValue(sint delta)
	{
		delta*= _DeltaMultiplier;

		// get DB and add
		sint32	val= _Number.getSInt32();
		val+= delta;

		// Loop or clamp
		if(_LoopMode)
		{
			sint32	dval= _MaxValue+1 - _MinValue;
			if (dval <= 0)
			{
				val = 0;
				return;
			}
			val -= _MinValue;
			val = val% dval; val = (val+dval)% dval;
			val += _MinValue;
		}
		else
		{
			clamp(val, _MinValue, _MaxValue);
		}

		// set in DB
		_Number.setSInt32(val);
		if(_TextNumber)
			_TextNumber->setText( toString(_Number.getSInt32()) );
	}


	// ***************************************************************************
	// ***************************************************************************
	// Actions Handlers
	// ***************************************************************************
	// ***************************************************************************


	// ***************************************************************************
	class CSNUp : public IActionHandler
	{
	public:
		virtual void execute (CCtrlBase *pCaller, const std::string &/* Params */)
		{
			CDBGroupSelectNumber *pSN = dynamic_cast<CDBGroupSelectNumber*>(pCaller->getParent());
			if (pSN == NULL) return;
			pSN->changeValue(+1);
		}
	};
	REGISTER_ACTION_HANDLER (CSNUp, "sn_up");

	// ***************************************************************************
	class CSNDown : public IActionHandler
	{
	public:
		virtual void execute (CCtrlBase *pCaller, const std::string &/* Params */)
		{
			CDBGroupSelectNumber *pSN = dynamic_cast<CDBGroupSelectNumber*>(pCaller->getParent());
			if (pSN == NULL) return;
			pSN->changeValue(-1);
		}
	};
	REGISTER_ACTION_HANDLER (CSNDown, "sn_down");

}