//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#ifndef _GUIMISSIONAREA_H_
#define _GUIMISSIONAREA_H_

#ifndef _GUIBITMAPCTRL_H_
#include "gui/controls/guiBitmapCtrl.h"
#endif
#ifndef _GUITYPES_H_
#include "gui/guiTypes.h"
#endif
#ifndef _MISSIONAREA_H_
#include "T3D/missionArea.h"
#endif
#ifndef _UNDO_H_
#include "util/undo.h"
#endif

class GBitmap;
class TerrainBlock;

class GuiMissionAreaCtrl : public GuiBitmapCtrl
{
   typedef GuiBitmapCtrl Parent;

protected:
   enum HandleInfo
   {
      // Handle in use
      Handle_None    = 0,
      Handle_Left    = BIT(0),
      Handle_Right   = BIT(1),
      Handle_Top     = BIT(2),
      Handle_Bottom  = BIT(3),
      Handle_Middle  = BIT(4),   // Used to drag the whole area

      Handle_Pixel_Size = 3,
   };

   SimObjectPtr<MissionArea>  mMissionArea;
   SimObjectPtr<TerrainBlock> mTerrainBlock;

   GFXStateBlockRef  mBlendStateBlock;
   GFXStateBlockRef  mSolidStateBlock;

   DECLARE_IMAGEASSET(GuiMissionAreaCtrl, HandleBitmap, onHandleBitmapChanged, GFXDefaultGUIProfile);
   DECLARE_ASSET_SETGET(GuiMissionAreaCtrl, HandleBitmap);

   Point2I           mHandleTextureSize;
   Point2F           mHandleTextureHalfSize;

   ColorI   mMissionBoundsColor;
   ColorI   mCameraColor;

   bool     mSquareBitmap;

   VectorF  mScale;
   Point2F  mCenterPos;

   S32      mLastHitMode;
   Point2I  mLastMousePoint;
   bool     mSavedDrag;

   void submitUndo( const UTF8 *name = "Action" );

   TerrainBlock * getTerrainObj();
   GBitmap * createTerrainBitmap();
   void updateTerrainBitmap();

   //void onUpdate();

   void setupScreenTransform(const Point2I & offset);

   Point2F worldToScreen(const Point2F &);
   Point2F screenToWorld(const Point2F &);

   Point2I worldToScreen(const Point2I &);
   Point2I screenToWorld(const Point2I &);

   Point2I screenDeltaToWorldDelta(const Point2I &screenPoint);

   void getScreenMissionArea(RectI & rect);
   void getScreenMissionArea(RectF & rect);

   Point2I convertOrigin(const Point2I &);

   void drawHandle(const Point2F & pos);
   void drawHandles(RectI & box);

   bool testWithinHandle(const Point2I & testPoint, S32 handleX, S32 handleY);
   S32 getHitHandles(const Point2I & mousePnt, const RectI & box);

   void onHandleBitmapChanged() {}

public:
   GuiMissionAreaCtrl();
   virtual ~GuiMissionAreaCtrl();

   DECLARE_CONOBJECT(GuiMissionAreaCtrl);

   // SimObject
   bool onAdd();
   static void initPersistFields();

   // GuiControl
   void onRender(Point2I offset, const RectI &updateRect);
   bool onWake();
   void onSleep();

   virtual void onMouseUp(const GuiEvent & event);
   virtual void onMouseDown(const GuiEvent & event);
   virtual void onMouseMove(const GuiEvent & event);
   virtual void onMouseDragged(const GuiEvent & event);
   virtual void onMouseEnter(const GuiEvent & event);
   virtual void onMouseLeave(const GuiEvent & event);

   void setMissionArea( MissionArea* area );
   void updateTerrain();

   const RectI & getArea();
   void setArea(const RectI & area);
};

class GuiMissionAreaUndoAction : public UndoAction
{
   public:

      GuiMissionAreaUndoAction( const UTF8* actionName ) : UndoAction( actionName ), mMissionAreaEditor(NULL), mObjId(0)
      {
      }

      GuiMissionAreaCtrl *mMissionAreaEditor;

      SimObjectId mObjId;
      RectI mArea;

      virtual void undo();
      virtual void redo() { undo(); }
};

#endif // _GUIMISSIONAREA_H_