/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
*/   


#ifndef _HMM_MINIMAP_VIEW_H_
#define _HMM_MINIMAP_VIEW_H_

const sint32 ZOOM_MIN = 1;
const sint32 ZOOM_MAX = 4;

class iMinimapView : public iChildGameView
{
public:
	iMinimapView();

	void OnMouseDown(const iPoint& pos);
	void OnMouseUp(const iPoint& pos);
	void OnMouseTrack(const iPoint& pos);
	
	void PrepareSurface();

	void SetCenterCell(const iPoint& pos);
	iPoint GetCenterCell() const { return m_CenterCell; }

	void OnZoomChanged();
	sint32 GetScale() const	{ return m_Scale; }
	inline void SetZoom(sint32 nScale) { m_Scale = iCLAMP<sint32>(ZOOM_MIN, ZOOM_MAX, nScale); }
	inline void ZoomIn() { m_Scale = iMIN<sint32>(m_Scale+1,ZOOM_MAX); OnZoomChanged(); }
	inline void ZoomOut() { m_Scale = iMAX<sint32>(m_Scale-1,ZOOM_MIN); OnZoomChanged(); }

	inline iPoint Screen2Map(const iPoint& pos) const
	{
		sint32 mx = ((pos.x-(sint32)(m_Rect.w/2))/m_Scale+pos.y/m_Scale)/2;
		sint32 my = pos.y/m_Scale-mx;
		return iPoint(mx,my);
	}

	inline iPoint Map2Screen(const iPoint& pos) const
	{ return iPoint((-pos.y+pos.x)*m_Scale+m_Rect.w/2,(pos.x+pos.y)*m_Scale); }

	inline iPoint GetOffset() const
	{ return iPoint(m_Rect.w/2,m_Rect.h/2) - Map2Screen(m_CenterCell); }

	void OnCompose();

private:
	void iCMDH_ControlCommand(iView* pView, CTRL_CMD_ID cmd, sint32 param);

private:
	sint32			m_Scale;
	iBuff<uint16>	m_Surf;
	iPoint			m_CenterCell;
	iPoint			m_TrackCell;
};

/*
 *	Minimap Toolbar 
 */
class iMinimapToolBar : public iView
{
public:
	iMinimapToolBar(iViewMgr* pViewMgr, IViewCmdHandler* pCmdHandler, const iRect& rect);
	void OnCompose();
};

#endif //_HMM_MINIMAP_VIEW_H_

