电子元器件系统

1、电子元器件系统代码分析一、 类的定义与实现1、 器件类l 器件类定义class CComponent : public CObjectpublic:static COLORREF m_fillColor;/由类的所有对象共享BOOL IsNum(CString str);BOOL IsInList(int i,CObList *pNumList);DECLARE_SERIAL(CComponent)void Serialize(CArchive& ar);void SetName(const CString &Name);CString GetName();virtual vo

2、id Draw(CDC *pDC);virtual CString CalculateName(CObList *pList);float GetRotateAngle();void SetRotateAngle(float angle);BOOL GetIsSelected();void SetIsSelected(BOOL IsSel);int GetLineWidth();void SetLineWidth(int LWidth);void SetColor(COLORREF color);COLORREF GetColor();CComponent();virtual CCompone

3、nt();private:float m_RotateAngle;BOOL m_IsSelected;int m_iLineWidth;COLORREF m_Color;CString m_strName;l 器件类实现COLORREF CComponent:m_fillColor = RGB(176,176,176);/在文件范围内初始化CComponent:CComponent()m_RotateAngle = 0;m_IsSelected = FALSE;/m_iLineWidth = 4;m_iLineWidth = 40;m_Color = RGB(0,0,255);CCompone

4、nt:CComponent()COLORREF CComponent:GetColor()return m_Color;void CComponent:SetColor(COLORREF color)m_Color = color;void CComponent:SetLineWidth(int LWidth)m_iLineWidth = LWidth;int CComponent:GetLineWidth()return m_iLineWidth;void CComponent:SetIsSelected(BOOL IsSel)m_IsSelected = IsSel;BOOL CCompo

5、nent:GetIsSelected()return m_IsSelected;void CComponent:SetRotateAngle(float angle)m_RotateAngle = angle;float CComponent:GetRotateAngle()return m_RotateAngle;CString CComponent:CalculateName(CObList *pObList)return "器件"void CComponent:Draw(CDC *pDC)CString CComponent:GetName()return m_str

6、Name;void CComponent:SetName(const CString &Name)m_strName = Name;void CComponent:Serialize(CArchive &ar)if (ar.IsStoring()ar<<m_Color<<m_iLineWidth<<m_strName<<m_RotateAngle;elsear>>m_Color>>m_iLineWidth>>m_strName>>m_RotateAngle;BOOL CCompone

7、nt:IsInList(int i, CObList *pNumList)/判断数字i是否在链表pNumList中POSITION pos = pNumList->GetHeadPosition();CObject *pObject;int *p;while(pos != NULL)pObject = pNumList->GetAt(pos);p = (int *)pObject;if (i = (*p)return TRUE;pNumList->GetNext(pos);return FALSE;BOOL CComponent:IsNum(CString str)/判断一个

8、字符串是否是数字,在各个派生类的CalculateName函数中/使用,系统提供的函数atoi()将类似于"12ert"之类的串转换为12,/这显然是不正确的,因此自己开发了这个小函数int len = str.GetLength();char ch;for (int i = 1; i<= len; i+)ch = str.GetAt(i-1);if (!(ch<='9' && ch>='0')return FALSE;return TRUE;2、 电阻类的定义与实现l 电阻类的定义#include &quo

9、t;Component.h"/包含基类的头文件typedef struct struc_Resistorchar m_strClassType20;/COLORREF m_color;/int m_iLineWidth;BOOL m_IsSelected;/float m_RotateAngle;char m_strName100;/char m_ReType100;/电阻的类型/char m_ReValue100;/电阻的阻值RESISTOR;class CResistor : public CComponent public:void CopyReToStruRe(RESISTO

10、R &Resistor);/将电阻对象拷贝到电阻结构中CResistor(RESISTOR Resistor);void GetNumInNameSer(CObList *pObList,CObList *pNumSer,int *pMax);/取得已绘制的电阻名称中的数字序列CResistor(CPoint *pt);DECLARE_SERIAL(CResistor)void Serialize(CArchive& ar);void PrepareDrawChipDC(CDC *pDC);void Draw(CDC *pDC);CString CalculateName(CO

11、bList *pObList);void SetReValue(CString &ReValue);void SetReType(CString &ReType);CString GetReValue();CString GetReType();CRect m_Rect;CRect m_RectLP;CRectTracker m_RectTracker;CResistor();virtual CResistor();private:CString m_ReType;CString m_ReValue;l 电阻类的实现CResistor:CResistor()/m_Rect =

12、CRect(0,0,100,60);m_Rect = CRect(0,0,2000,-1000);m_RectLP = m_Rect;m_RectTracker.m_rect = m_Rect;m_RectTracker.m_nStyle = CRectTracker:resizeOutside;SetName("R");CResistor:CResistor()CString CResistor:GetReType()return m_ReType;CString CResistor:GetReValue()return m_ReValue;void CResistor:

13、SetReType(CString &ReType)m_ReType = ReType;void CResistor:SetReValue(CString &ReValue)m_ReValue = ReValue;CString CResistor:CalculateName(CObList *pObList)/在绘制时系统给出的默认名称，这个名称是根据当前链表中/对象情况而定的，具体功能同VB等开发工具中拖拉控件时产生/名称的情况CObList *pNumSer = new CObList;int max;char buf10;GetNumInNameSer(pObList,

14、pNumSer,&max);/分析数字序列for (int i=1;i<=max;i+)if (IsInList(i,pNumSer)/在基类中有定义elsebreak;itoa(i,buf,10);/itoa(i,buf,10);/删除链表/TRACE("pNumSer->Count() = %dn", pNumSer->GetCount();while (pNumSer->GetHeadPosition()delete (int *)pNumSer->RemoveHead();delete pNumSer;return "

15、R"+ CString(buf);void CResistor:Draw(CDC *pDC)/*根据元器件对象的颜色和线宽属性值绘制*/CString name = this->GetName();int width = m_Rect.Width();int height = m_Rect.Height();/返回的是负值；CPen newpen(PS_SOLID,1,RGB(0,0,255);CPen *pOldPen = pDC->SelectObject(&newpen);pDC->MoveTo(m_Rect.left,(int)(m_Rect.top

16、+height*0.5);pDC->LineTo(int)(m_Rect.left +width*0.3),(int)(m_Rect.top + height*0.5);pDC->Rectangle (int)(m_Rect.left + width * 0.3 ),(int)(m_Rect.top + height * 0.25), (int)(m_Rect.left + width * 0.7 ),(int)( m_Rect.top + height * 0.75);pDC->MoveTo (int)(m_Rect.left + width * 0.7) ,(int)(m

17、_Rect.top + height * 0.5);pDC->LineTo(int)(m_Rect.left + width) ,(int)(m_Rect.top + height * 0.5);/pDC->SetBkMode(TRANSPARENT);pDC->TextOut(int)(m_Rect.left + width * 0.4),(int)(m_Rect.top + height*0.75),name);pDC->SelectObject(pOldPen);void CResistor:PrepareDrawChipDC(CDC *pDC)void CRes

18、istor:Serialize(CArchive &ar)CComponent:Serialize(ar); /基类的序列化函数/需要序列化m_RectLPif (ar.IsStoring()ar<<m_Rect<<m_RectLP<<m_RectTracker.m_nStyle<<m_ReType<<m_ReValue;/<<m_RectTracker.m_rectelsear>>m_Rect>>m_RectLP>>m_RectTracker.m_nStyle>>m

19、_ReType>>m_ReValue;/>>m_RectTracker.m_rectCResistor:CResistor(CPoint *pt)/*由于需要把新生成的元器件对象的m_Rect左上角坐标设置为*/*鼠标点按处的坐标转换成逻辑坐标后的值，并且初始化m_Rect的右下角坐标*/*所以将这一系列的初始化操作加到了CResistor(CPoint *pt)构造函数中*/m_Rect.left = pt->x;m_Rect.top = pt->y;/m_Rect.right = m_Rect.left + 100;/m_Rect.bottom = m_

20、Rect.top + 60;m_Rect.right = m_Rect.left + 2000;m_Rect.bottom = m_Rect.top - 1000;m_RectLP = m_Rect;m_RectTracker.m_rect = m_Rect;m_RectTracker.m_nStyle = CRectTracker:resizeOutside;void CResistor:GetNumInNameSer(CObList *pObList,CObList *pNumSer,int *pMax)/取得链表中电阻名称是以R或r开头，后面为数字的名称中的数字序列/其中pNumSer存

21、放数字序列，pMax存放的是数字中的最大值*pMax = 0;POSITION pos = pObList->GetHeadPosition();CObject *pObject;CResistor *pResistor;CString strName;CString strLastName;while (pos != NULL)pObject = pObList->GetAt(pos);if (pObject->IsKindOf(RUNTIME_CLASS(CResistor)pResistor = (CResistor*)pObject;strName = pResist

22、or->GetName();if (strName.GetAt(0) = 'R') | (strName.GetAt(0) = 'r')/如果名称的第一个字母是R或rstrLastName = strName.Mid(1);/判断余下的字符是否数字if (IsNum(strLastName)/余下的字符全部都是数字int i;i = atoi(strLastName);int *p = new int(i);pNumSer->AddHead(CObject *)p);if (i>(*pMax)*pMax = i;else/余下的字符不全是数字/

23、忽略不记else/名称的第一个字母不是R或relsepObList->GetNext(pos);CResistor:CResistor(RESISTOR Resistor)SetName(Resistor.m_strName);SetIsSelected(Resistor.m_IsSelected);m_Rect = CRect(1000,-1000,3000,-2000);m_RectLP = m_Rect;m_RectTracker.m_rect = m_Rect;m_RectTracker.m_nStyle = CRectTracker:resizeOutside;void CRe

24、sistor:CopyReToStruRe(RESISTOR &Resistor)/*把对象的数据赋值给结构，在复制功能时用到*/lstrcpy(Resistor.m_strClassType, "Resistor");/字符串的复制 Resistor.m_IsSelected = this->GetIsSelected();lstrcpy(Resistor.m_strName, this->GetName();二、 文档类函数1、 串行化函数void CDrawChip1Doc:Serialize(CArchive& ar)if (ar.IsS

25、toring()/ TODO: add storing code hereelse/ TODO: add loading code herem_ChipObList.Serialize(ar);2、 销毁对象函数void CDrawChip1Doc:DeleteContents() while(m_ChipObList.GetHeadPosition()delete m_ChipObList.RemoveHead();/ TODO: Add your specialized code here and/or call the base classCDocument:DeleteContents

26、();三、 视图类主要函数1、绘图函数void CDrawChip1View:OnDraw(CDC* pDC)CDrawChip1Doc* pDoc = GetDocument();ASSERT_VALID(pDoc);/ TODO: add draw code for native data herePOSITION pos = pDoc->m_ChipObList.GetHeadPosition();CObject *pObject;CResistor *pResistor;CComponent *pComponent;CBrush fillBrush(RGB(255,0,255),

27、*oldBrush;oldBrush = pDC->SelectObject(&fillBrush);while (pos != NULL)pObject = pDoc->m_ChipObList.GetAt(pos);pComponent = (CComponent *)pObject;if (pObject->IsKindOf(RUNTIME_CLASS(CResistor)pResistor = (CResistor *)pObject;pResistor->m_RectTracker.m_rect = pResistor->m_RectLP;pDC

28、->LPtoDP(pResistor->m_RectTracker.m_rect);if (pResistor->GetIsSelected()pResistor->m_RectTracker.Draw(pDC);/画框/pResistor->Draw(pDC);/画电阻pComponent->Draw(pDC);/画电阻 pDoc->m_ChipObList.GetNext(pos);pDC->SelectObject(oldBrush);3、 初始化视图类函数void CDrawChip1View:OnInitialUpdate()CScro

29、llView:OnInitialUpdate();CSize sizeTotal(30000,30000);/这里的值是逻辑坐标，30cm，30cmCSize sizePage(sizeTotal.cx/5,sizeTotal.cy/6);CSize sizeLine(sizeTotal.cx/50,sizeTotal.cy/50);/MM_HIMETRIC映射模式的y轴方向是向下减的SetScrollSizes(MM_HIMETRIC,sizeTotal,sizePage,sizeLine);4、 鼠标事件函数void CDrawChip1View:OnLButtonDown(UINT nF

30、lags, CPoint point) /point参数代表光标的坐标位置(设备坐标)/nFlags鼠标键与键盘的组合标志,有MK_LBUTTON,MK_RBUTTON,MK_MBUTTON,MK_SHIFT,MK_CONTROLCClientDC dc(this);OnPrepareDC(&dc);/lpPoint存放当前鼠标点按点的逻辑坐标CPoint *lpPoint = new CPoint(point); lpPoint->x = point.x;lpPoint->y = point.y;dc.DPtoLP(lpPoint);/设备坐标转换为逻辑坐标int x =

31、 lpPoint->x;int y = lpPoint->y;CDrawChip1Doc *pDoc = GetDocument();CObList *pObList = &(pDoc->m_ChipObList);CObList *pTempObList = &(pDoc->m_ChipObList);CRect rectInvalidate;/存放更新的区域CString strName;CSize Textsize;/记录元器件对象名称字符的宽度和高度if (m_bResistor)/当前处于绘制电阻状态CResistor *pResistor =

32、 new CResistor(lpPoint);AddChipToList(pResistor,pObList);strName = pResistor->GetName();:GetTextExtentPoint32(dc, (const char *)&strName, strName.GetLength(), &Textsize);/计算strName的大小rectInvalidate = pResistor->m_Rect;rectInvalidate.bottom = rectInvalidate.bottom - Textsize.cy;rectInva

33、lidate.right = rectInvalidate.right + Textsize.cx;dc.LPtoDP(&rectInvalidate);pDoc->SetModifiedFlag(TRUE);InvalidateRect(&rectInvalidate,TRUE);/局部 更新/*绘制电阻功能完成*/ TODO: Add your message handler code here and/or call default POSITION CurPos = NULL;/如果点按在元器件上，它才有意义，它就是这个被点按的元器件在链表中的位置BOOL IsS

34、el = FALSE;/如果点按在元器件上，它才有意义，它就是这个被点按的元器件的IsSelected属性值BOOL IsInChip =FALSE;IsInChip = IsInChipRect(point,pObList,&CurPos,&IsSel);/判断鼠标是否点按在器件上int iBeSelCount = BeSelectedNum(pObList);/求被选中的器件个数if (m_bNothing)/当前处于选择状态if (nFlags & MK_SHIFT)/shift按下if (!IsInChip)/点在空白处if (iBeSelCount = 0)g

35、oto End;/点在空白处，而且当前没有被选中的，所以不用更新屏幕elseSetAllChipNotIsSel(pObList);/使所有器件都处于非选中状态else /点在元器件处CComponent *pComponent;pComponent = (CComponent *)pObList->GetAt(CurPos);if (IsSel)/当前点按的元器件已经处于选中状态pComponent->SetIsSelected(FALSE);else /当前点按的元器件没有处于选中状态pComponent->SetIsSelected(TRUE);Invalidate()

36、;goto End; else/shift没有按下if (!IsInChip)/点在空白处if (iBeSelCount = 0)/点在空白处,而且没有被选中的,所以不用更新屏幕elseSetAllChipNotIsSel(pObList);Invalidate();/goto End;else /点在元器件处CResistor *pResistor;CComponent *pComponent;pComponent = (CComponent *)pObList->GetAt(CurPos);if (IsSel)/当前点按的元器件已经处于选中状态if (iBeSelCount>=

37、2)/当前链表中处于选中状态的有多个m_bjitiyidong=true;point_from=point;/做集体移动else /当前链表中处于选中状态的有一个/单个移动和放大或缩小的功能if (pComponent->IsKindOf(RUNTIME_CLASS(CResistor)pResistor = (CResistor *)pComponent;/m_RectTracker.m_rect = pResistor->m_RectTracker.m_rect;/m_RectTracker.m_nStyle = CRectTracker:resizeInside;if (pR

38、esistor->m_RectTracker.Track(this,point,FALSE,NULL)pResistor->m_RectLP = pResistor->m_RectTracker.m_rect;dc.DPtoLP(pResistor->m_RectLP);pResistor->m_Rect = pResistor->m_RectLP;pDoc->SetModifiedFlag(TRUE);Invalidate();goto End;else /当前点按的元器件没有处于选中状态，当前器件选中，其它非选中SetAllChipNotIsSel

39、(pObList);pComponent->SetIsSelected(TRUE);Invalidate();goto End;End:CScrollView:OnLButtonDown(nFlags, point);delete lpPoint;5、 添加对象到列表void CDrawChip1View:AddChipToList(CObject *pObject, CObList *pObList) if (pObject->IsKindOf(RUNTIME_CLASS(CResistor)CResistor *pResistor = (CResistor*)pObject;C

40、String name = pResistor->CalculateName(pObList);pResistor->SetName(name);pResistor->SetIsSelected(FALSE);/设置非选中状态pObList->AddHead(pResistor);6、 其它函数bool CDrawChip1View:IsInChipRect(CPoint point, CObList *pObList, POSITION *pCurPos, BOOL *pIsSel)*pCurPos = NULL;*pIsSel = FALSE;POSITION po

41、s = pObList->GetTailPosition();int ht = CRectTracker:hitNothing;CObject *pObject;CResistor *pResistor;while(pos!=NULL)*pCurPos = pos;pObject = pObList->GetAt(pos);if (pObject->IsKindOf(RUNTIME_CLASS(CResistor)pResistor = (CResistor *)pObject;ht = pResistor->m_RectTracker.HitTest(point);*

42、pIsSel = pResistor->GetIsSelected();if (ht != CRectTracker:hitNothing)return TRUE;elsepObList->GetPrev(pos);return FALSE;int CDrawChip1View:BeSelectedNum(CObList *pObList)POSITION pos = pObList->GetHeadPosition();CObject *pObject;CResistor *pResistor;int num = 0;while(pos!=NULL)pObject = pO

43、bList->GetAt(pos);if (pObject->IsKindOf(RUNTIME_CLASS(CResistor)pResistor = (CResistor *)pObject;if (pResistor->GetIsSelected()num+;pObList->GetNext(pos);return num;void CDrawChip1View:SetAllChipNotIsSel(CObList *pObList)POSITION pos = pObList->GetHeadPosition();CObject *pObject;CResistor *pResistor;while(pos!=NULL)pObject = pObList->GetAt(pos);if (pObject->IsKindOf(RUNTIME_CLASS(CResistor)p