#include "StdAfx.h"
#include "MouseToolStretch.h"
#include "EnumDirection.h"
#include "EasyOperationMgr.h"
#include "GlobalDrawMgr.h"
#include "GlobalFunction.h"
#include "CommandStretch.h"
#include "CommandMgr.h"

CMouseToolStretch::CMouseToolStretch(void)
{
}
CMouseToolStretch::~CMouseToolStretch(void)
{
}
void CMouseToolStretch::OnLButtonDown(UINT nFlags, CPoint point,CClientDC &dc)
{
    if(m_Status==_STATUS_1)
    {
         SaveDownPoint(point);
         //创建模拟操作的对象
         CreatOpSimulateObj();
         ToNextStatus();
    }
}
void CMouseToolStretch::OnLButtonUp(UINT nFlags, CPoint point,CClientDC &dc)
{
     //创建undo 用的指令-----start
     CCommandStretch *pCmd = new CCommandStretch;
     
     //obj 操作
     DIRECTION dir = gEasyOperationMgr->GetOprDir();
     if(dir == _DIR_L || dir == _DIR_R)
     {
          pCmd->SetOperatePar(m_ParX);
     }
     else if(dir == _DIR_U || dir == _DIR_D)
     {
          pCmd->SetOperatePar(m_ParY);
     }
     else
     {
          pCmd->SetOperatePar(m_ParX);
          pCmd->SetOperateParY(m_ParY);
     }
     gCommandMgr.AddUndoCommand(pCmd);
     //创建undo 用的指令-----end
     pCmd->Excute();
     
     OperateOver();
     m_Status = _STATUS_END;
}
void CMouseToolStretch::OperateObj(Dbxy StartPt,Dbxy EndPt)
{
     m_OpSimulateObj.DelAllPt();
     m_OpSimulateObj.CopyPt(m_OpSimulateObjBak);
     //obj 操作
     DIRECTION dir = gEasyOperationMgr->GetOprDir();
     //保持比例
     if(dir == _DIR_LB || dir == _DIR_RB || dir == _DIR_LT || dir == _DIR_RT)
     {
          if(abs(EndPt.x - StartPt.x)<abs(EndPt.y - StartPt.y))
          {
               if(EndPt.y>StartPt.y)
               {
                   EndPt.y = StartPt.y + abs(EndPt.x - StartPt.x);
               }
               else
               {
                   EndPt.y = StartPt.y - abs(EndPt.x - StartPt.x);
               }
          }
          else
          {
               if(EndPt.x>StartPt.x)
               {
                   EndPt.x = StartPt.x + abs(EndPt.y - StartPt.y);
               }
               else
               {
                   EndPt.x = StartPt.x - abs(EndPt.y - StartPt.y);
               }
          }
     }
     
     if(dir != _DIR_U && dir != _DIR_D)
     {
          m_ParX.OpType = _OP_STRETCH;
          m_ParX.BasePt = gEasyOperationMgr->GetBasePt();
          m_ParX.OldSize = gEasyOperationMgr->GetSize(_X);
          m_ParX.Diff = gEasyOperationMgr->GetDiff(StartPt,EndPt).x;
          m_ParX.NewSize = m_ParX.OldSize + m_ParX.Diff;
          m_ParX.xy = _X;
          //操作模拟对象
          m_OpSimulateObj.Operate(m_ParX);
     }
     if(dir != _DIR_L && dir != _DIR_R)
     {
          m_ParY.OpType = _OP_STRETCH;
          m_ParY.BasePt = gEasyOperationMgr->GetBasePt();
          m_ParY.OldSize = gEasyOperationMgr->GetSize(_Y);
          m_ParY.Diff = gEasyOperationMgr->GetDiff(StartPt,EndPt).y;
          m_ParY.NewSize = m_ParY.OldSize + m_ParY.Diff;
          m_ParY.xy = _Y;
          //操作模拟对象
          m_OpSimulateObj.Operate(m_ParY);
     }
}
void CMouseToolStretch::OnMouseMove(UINT nFlags, CPoint point,CClientDC &dc)
{
    Dbxy CurPt = gDraw->CPoint2Dbxy(point);
    CLayer &layer = gLayer;
    if(nFlags&MK_LBUTTON && (m_Status!=_STATUS_1))
    {
         if(m_bFirstMove==false)
         {
             //重绘模拟对象
             XorRedrawOpSimulateObj(&dc);
         }
         m_bFirstMove = false;
         OperateObj(m_DownPoint,CurPt);//操作
         XorRedrawOpSimulateObj(&dc);
    }
}