开通博客赚积分
发布资源赚积分
分类

源码开发语言/平台
当前位置：首页 > 源码/资料 > 图形图像 > 绘图程序 > 查看源码
CDLine.cpp
资源名称：完整的基本图形绘制系统.rar　[点击查看]
上传用户：qiye66671
上传日期：2009-12-10
资源大小：182k
文件大小：8k
源码类别：

绘图程序

开发平台：

C/C++

CDLine.cpp：源码内容
  1. #include "stdafx.h"
  2. #include"CDLine.h"
  3. #include"EastDrawView.h"
  4. IMPLEMENT_SERIAL(CDLine,CUnit,1)
  5. void CDLine::DrawStatic(CDC*pDC)
  6. {
  7.  
  8.  CPen m_pen;
  9.  m_pen.CreatePen(m_PenStyle,m_PenWidth,m_PenColor);
  10.  CPen* pen=(CPen*)pDC->SelectObject(&m_pen);
  11.  int oldDrawingMode=pDC->SetROP2(m_DrawingMode);
  12.  COLORREF OldColor=pDC->SetBkColor(m_BackgroundColor);
  13.  int OldBkMode=pDC->SetBkMode(m_BkMode);
  15.  pDC->MoveTo(m_FirstPoint);
  16.  pDC->LineTo(m_SecondPoint);
  17.  pDC->SelectObject(pen);
  18.  pDC->SetROP2(oldDrawingMode);
  19.  pDC->SetBkMode(m_BkMode);
  20.  pDC->SetBkColor(OldColor);
  21. }
  23. CDLine::CDLine()
  24. { 
  25. CUnit::Initial();
  26.    
  28. }
  30. CRgn* CDLine::GetRgn()
  31. {
  32.   if(m_Rgn==NULL)
  33.   
  34.    m_Rgn=new CRgn; 
  35.    else m_Rgn->DeleteObject();
  36.    {
  37.    CPoint point[4];
  38.    CPoint FirstPoint;
  39.    CPoint SecondPoint;
  40.   if((m_FirstPoint.x-m_SecondPoint.x)*(m_FirstPoint.y-m_SecondPoint.y)<0)
  41.   {
  42.    if(m_FirstPoint.x>m_SecondPoint.x)
  43.    { 
  44.    
  45.    FirstPoint=m_SecondPoint;
  46.        SecondPoint=m_FirstPoint;   
  47.    }
  48.    else
  49.    {
  50.        FirstPoint=m_FirstPoint;
  51.        SecondPoint=m_SecondPoint;
  52.    
  53.    }
  54.    FirstPoint.Offset(-4-m_PenWidth,4+m_PenWidth);
  55.    SecondPoint.Offset(4+m_PenWidth,4+m_PenWidth);
  56.   point[0].x=FirstPoint.x-3-m_PenWidth;
  57.   point[0].y=FirstPoint.y-4-m_PenWidth;
  59.   point[1].x=FirstPoint.x+3+m_PenWidth;
  60.   point[1].y=FirstPoint.y+4+m_PenWidth;
  62.   point[2].x=SecondPoint.x+3+m_PenWidth;
  63.   point[2].y=SecondPoint.y+4+m_PenWidth;
  65.   point[3].x=SecondPoint.x-3-m_PenWidth;
  66.   point[3].y=SecondPoint.y-4-m_PenWidth;
  67.   
  68.   }
  70.   if((m_FirstPoint.x-m_SecondPoint.x)*(m_FirstPoint.y-m_SecondPoint.y)>0)
  71.   {
  72.    if(m_FirstPoint.x>m_SecondPoint.x)
  73.    { 
  74.    
  75.    FirstPoint=m_FirstPoint;
  76.        SecondPoint=m_SecondPoint;   
  77.    }
  79.    else
  80.    {
  81.    FirstPoint=m_SecondPoint;
  82.        SecondPoint=m_FirstPoint; 
  83.    }
  84.     FirstPoint.Offset(-4-m_PenWidth,-4-m_PenWidth);
  85. SecondPoint.Offset(4+m_PenWidth,4+m_PenWidth);
  86.   point[0].x=FirstPoint.x+3+m_PenWidth;
  87.   point[0].y=FirstPoint.y-4-m_PenWidth;
  89.   point[1].x=FirstPoint.x-3-m_PenWidth;
  90.   point[1].y=FirstPoint.y+4+m_PenWidth;
  92.   point[2].x=SecondPoint.x-3-m_PenWidth;
  93.   point[2].y=SecondPoint.y+4+m_PenWidth;
  95.   point[3].x=SecondPoint.x+3+m_PenWidth;
  96.   point[3].y=SecondPoint.y-4-m_PenWidth;
  97.   
  98.   }
  100. if((m_FirstPoint.x-m_SecondPoint.x)==0)
  101.   {
  102.   point[0].x=m_FirstPoint.x-3-m_PenWidth;
  103.   point[0].y=m_FirstPoint.y-4-m_PenWidth;
  105.   point[1].x=m_FirstPoint.x+3+m_PenWidth;
  106.   point[1].y=m_FirstPoint.y-4-m_PenWidth;
  108.   point[2].x=m_SecondPoint.x+3+m_PenWidth;
  109.   point[2].y=m_SecondPoint.y+4+m_PenWidth;
  111.   point[3].x=m_SecondPoint.x-3-m_PenWidth;
  112.   point[3].y=m_SecondPoint.y+4+m_PenWidth;
  113.   
  114.   }
  116. if((m_FirstPoint.y-m_SecondPoint.y)==0)
  117.   {
  118.   point[0].x=m_FirstPoint.x-4-m_PenWidth;
  119.   point[0].y=m_FirstPoint.y-3-m_PenWidth;
  121.   point[1].x=m_FirstPoint.x-4-m_PenWidth;
  122.   point[1].y=m_FirstPoint.y+3+m_PenWidth;
  124.   point[2].x=m_SecondPoint.x+4+m_PenWidth;
  125.   point[2].y=m_SecondPoint.y+3+m_PenWidth;
  127.   point[3].x=m_SecondPoint.x+4+m_PenWidth;
  128.   point[3].y=m_SecondPoint.y-3-m_PenWidth;
  129.   
  130.   }
  131.   m_Rgn->CreatePolygonRgn(point,4,ALTERNATE);
  132.   }
  133.   return m_Rgn;
  134. }
  136. void CDLine::Initial()
  137. {
  138.   m_FirstPoint=0;
  139.   m_SecondPoint=0;
  140.   m_PenColor=RGB(0,0,0);
  141.   m_PenWidth=1;
  142.   m_PenStyle=PS_SOLID;
  143.   
  144.  
  148. }
  150. int CDLine::IsOnMarginPoint(CPoint point)
  151. {
  152.         CRect L_Rect1;
  153. CRect L_Rect2;
  154. CRect L_Rect3;
  155. L_Rect1.SetRect(m_FirstPoint,m_FirstPoint);
  156.         L_Rect2.SetRect(m_SecondPoint,m_SecondPoint);
  157. L_Rect3.SetRect((m_SecondPoint.x+m_FirstPoint.x)/2,(m_SecondPoint.y+m_FirstPoint.y)/2,(m_SecondPoint.x+m_FirstPoint.x)/2,(m_SecondPoint.y+m_FirstPoint.y)/2);
  158.         L_Rect1.InflateRect(5+m_PenWidth,5+m_PenWidth);
  159. L_Rect2.InflateRect(5+m_PenWidth,5+m_PenWidth);
  160. L_Rect3.InflateRect(5+m_PenWidth,5+m_PenWidth); 
  161. if(L_Rect1.PtInRect(point))
  162. {   
  163.     m_FoundPoint=m_FirstPoint;
  164. return 1;
  165. }
  166.  if(L_Rect2.PtInRect(point))
  167.  {   
  168.  m_FoundPoint=m_SecondPoint;
  169.  return 2;
  170.  }
  171.  if(L_Rect3.PtInRect(point))
  172.  {
  173.  m_FoundPoint=CPoint((m_SecondPoint.x+m_FirstPoint.x)/2,(m_SecondPoint.y+m_FirstPoint.y)/2);
  174.  return 3;
  175.  }
  176.  
  177.         return 0;
  179. }
  181. void CDLine::Circumrotate(CPoint first,CPoint second)
  182. {
  183. double k;
  184. int x;
  185. if(m_FirstPoint.x-m_SecondPoint.x==0)
  186.       k=99999999999;
  187. else  k=double(first.y-second.y)/(first.x-second.x);
  190.    x=(k*(first.y+second.y)+(first.x+second.x)+(k*k-1)*m_FirstPoint.x-2*k*m_FirstPoint.y)/(k*k+1);
  191.    m_FirstPoint.y=k*(x-this->m_FirstPoint.x)+this->m_FirstPoint.y;
  192.    m_FirstPoint.x=x;
  193.    x=(k*(first.y+second.y)+(first.x+second.x)+(k*k-1)*m_SecondPoint.x-2*k*m_SecondPoint.y)/(k*k+1);
  194.    m_SecondPoint.y=k*(x-this->m_SecondPoint.x)+this->m_SecondPoint.y;
  195.    m_SecondPoint.x=x;
  196.  }
  200. void CDLine::ShowSelectPoint(CDC*pDC)
  201. {
  202.  
  203.  CBrush brush;
  204. brush.CreateSolidBrush(RGB(0,0,255));
  205. CPen m_pen;
  206. m_pen.CreatePen(PS_SOLID,1,RGB(0,0,255));
  207. CPen *OldPen=pDC->SelectObject(&m_pen);
  208. int oldBkMode=pDC->SetBkMode(OPAQUE); 
  209. CBrush *OldBrush=pDC->SelectObject(&brush);
  210. int oldDrawingMode=pDC->SetROP2(R2_NOTXORPEN);
  211.  CRect rect(m_FirstPoint,m_FirstPoint);
  212.  rect.InflateRect(3,3);
  213.  pDC->Rectangle(rect);
  214.  
  215.  rect=CRect(m_SecondPoint,m_SecondPoint);
  216.  rect.InflateRect(3,3);
  217.  pDC->Rectangle(rect);
  218.  pDC->SelectObject(OldBrush);
  219.  brush.DeleteObject();
  220.  brush.CreateSolidBrush(RGB(255,0,0));
  221.  OldBrush=pDC->SelectObject(&brush);
  222.  rect=CRect((m_FirstPoint.x+m_SecondPoint.x)/2,(m_FirstPoint.y+m_SecondPoint.y)/2,(m_FirstPoint.x+m_SecondPoint.x)/2,(m_FirstPoint.y+m_SecondPoint.y)/2);
  223.  rect.InflateRect(3,3);
  224.  pDC->Rectangle(rect);
  226.  
  228. pDC->SelectObject(OldPen);
  229. pDC->SetBkMode(oldBkMode); 
  230. pDC->SelectObject(OldBrush);
  231. pDC->SetROP2(oldDrawingMode);
  232. }
  234. BOOL CDLine::IsInRgn(CPoint point)
  235. {
  236.    this->GetRgn();
  237.    return(m_Rgn->PtInRegion(point));
  238. }
  240. void CDLine::DrawActive(CDC *pDC,CPoint point)
  241. {
  242.  CPen m_pen;
  243.  m_pen.CreatePen(m_PenStyle,m_PenWidth,m_PenColor);
  244.  CPen* pen=(CPen*)pDC->SelectObject(&m_pen);
  246.  COLORREF OldColor=pDC->SetBkColor(m_BackgroundColor);
  247.  int OldBkMode=pDC->SetBkMode(m_BkMode);
  249.  pDC->MoveTo(m_FirstPoint);
  250.  pDC->LineTo(m_SecondPoint);
  251.  pDC->SelectObject(pen);
  253.  pDC->SetBkMode(m_BkMode);
  254.  pDC->SetBkColor(OldColor);
  255. }
  257. void CDLine::OnLButtonDown(CDC *pDC, CEastDrawView *pView, CPoint point)
  258. {
  259.       if(m_HaveFindFirst)
  260.    {
  261.    pView->L_iPointCount=IsOnMarginPoint(point);
  262.     if(pView->L_iPointCount==1)
  263.  { 
  264.    pView->m_bHaveFindSecond=true;
  265.    pView->m_CurrentDrawTool=DLine_Tool;
  266.    pView->m_CurrentDrawStatus=Change_Status;
  267.    pView->m_FirstPoint=m_SecondPoint;
  268.    pView->m_SecondPoint=point;
  269.  }
  270.          if(pView->L_iPointCount==2)
  271.  {   
  272. pView->m_bHaveFindSecond=true;
  273. pView->m_CurrentDrawTool=DLine_Tool;
  274.     pView->m_CurrentDrawStatus=Change_Status;
  275. pView->m_FirstPoint=m_FirstPoint;
  276. pView->m_SecondPoint=point;
  277.  }
  278.  if(pView->L_iPointCount==3)
  279.  {
  280.     pView->m_bHaveFindSecond=true;
  281.             pView->m_CurrentDrawTool=DLine_Tool;
  282. pView->m_CurrentDrawStatus=Drag_Status;
  283. pView->m_FirstPoint=m_FirstPoint;
  284. pView->m_SecondPoint=m_SecondPoint;
  285.  }
  286.    }//**********if(L_pDLine->m_HaveFindFirst)
  287.  if((!pView->m_bHaveFindSecond)&&IsInRgn(point))
  288. { 
  289.  if(!m_HaveFindFirst)
  290.  {
  291.        m_HaveFindFirst=true;
  292.                pView->m_bHaveFindFirst=true;
  293.    ShowSelectPoint(pDC);
  294.  }
  295.  else
  296.  {
  297.   this->m_HaveFindFirst=false;
  298.   pView->m_bHaveFindFirst=true;
  299.   this->ShowSelectPoint(pDC);
  300.  }
  301.  }
  303.         if(pView->m_bHaveFindSecond)
  304. {   
  305.         pView->m_pCurrentUnit=this;
  306.     m_DrawingMode=pDC->GetROP2();
  307. ShowSelectPoint(pDC);
  308.     DrawStatic(pDC);
  309. DrawOldReferencePoint(pDC,m_FoundPoint);
  310. }
  311. }
  313. void CDLine::OnMouseMove(CDC *pDC, CEastDrawView *pView, CPoint point)
  314. {
  315.     if(pView->m_CurrentDrawStatus==Drag_Status)
  316. {
  317. m_FirstPoint.Offset(pView->m_SecondPoint.x-pView->m_FirstPoint.x,pView->m_SecondPoint.y-pView->m_FirstPoint.y);
  318.     m_SecondPoint.Offset(pView->m_SecondPoint.x-pView->m_FirstPoint.x,pView->m_SecondPoint.y-pView->m_FirstPoint.y);
  319. }
  320. else
  321. {
  322.   pDC->SetROP2(R2_NOTXORPEN);
  323.   //m_DrawingMode=pDC->GetROP2();
  324.   this->DrawActive(pDC,point);
  325.       pView->m_SecondPoint=point;
  326.   //m_pCurrentUnit->m_FirstPoint=m_FirstPoint;
  327.   m_SecondPoint=pView->m_SecondPoint;
  328.       this->DrawActive(pDC,point);
  329. }
  330. }