程序运行界面：
class CShape:public CObject 
...{
protected: COLORREF m_pColor; //线条颜色 int m_pWidth;//线条宽度 int m_pStyle;//线条样式
CShape()...{} DECLARE_SERIAL(CShape)public: virtual void Drawing(CDC* pDC)...{}//画图操作 virtual void Serialize(CArchive& ar);// virtual ~CShape();
}; CClientDC dc(this); OnPrepareDC(&dc); dc.DPtoLP(&point);//滚动条坐标转换代码 dc.SelectStockObject(NULL_BRUSH); SetCursor(m_HCursor); if(m_Drag)...{ CDooDleDoc* pDoc = GetDocument(); CPen NewPen,*pOldPen; switch(pDoc->m_pStyle) ...{ case PEN_STYLE_SOLID: NewPen.CreatePen(PS_SOLID,pDoc->m_pWidth,pDoc->m_pColor); Break; //…………….
} pOldPen = dc.SelectObject(&NewPen); dc.SetROP2(R2_NOT); if(pDoc->CurrentDraw == DRAW_LINE)...{//直线 dc.MoveTo(m_pOrigin); dc.LineTo(m_pPrev);//擦掉上一次画的线 dc.MoveTo(m_pOrigin); dc.LineTo(point);//画线 } if(pDoc->CurrentDraw == DRAW_RECTANGLE)...{//矩形 //………………………. void CDooDleDoc::OnEditUndo() ...{ // TODO: Add your command handler code here int index = m_ObArray.GetUpperBound(); if(index>=0 && m_pModifiedCount > 0)...{ //m_pModifiedCount为撤消标志 delete m_ObArray.GetAt(index); m_ObArray.RemoveAt(index); m_pModifiedCount--; } UpdateAllViews(NULL); SetModifiedFlag();}void CDooDleDoc::Serialize(CArchive& ar) //序列化...{ if (ar.IsStoring()) ...{ // TODO: add storing code here m_ObArray.Serialize(ar); } else ...{ // TODO: add loading code here m_ObArray.Serialize(ar); }}void CEllipse::Serialize(CArchive& ar)...{ if(ar.IsStoring())...{ ar<<m_pFirstCorner.x<<m_pFirstCorner.y<<m_pSecondCorner.x <<m_pSecondCorner.y; } else...{ ar>>m_pFirstCorner.x>>m_pFirstCorner.y>>m_pSecondCorner.x >>m_pSecondCorner.y; } CShape::Serialize(ar);}void CDooDleDoc::AddShape(CShape* pShape)...{ //CLine* pLine = new CLine(pStart,pEnd,Width,Style,Color); m_ObArray.Add(pShape); SetModifiedFlag(); m_pModifiedCount++;} class CLine:public CShape ...{protected: CPoint m_pStart;//起点 CPoint m_pEnd;//终点 DECLARE_SERIAL(CLine)//序列化宏 CLine()...{}public: CLine(CPoint pStart,CPoint pEnd,int Width,int Style,COLORREF Color); void Drawing(CDC* pDC);//画直线 virtual void Serialize(CArchive& ar); virtual ~CLine();};void CDooDleView::OnLButtonUp(UINT nFlags, CPoint point) ...{ // TODO: Add your message handler code here and/or call default CClientDC dc(this); OnPrepareDC(&dc); dc.DPtoLP(&point);//滚动条坐标转换代码 dc.SelectStockObject(NULL_BRUSH); if(m_Drag)...{ m_Drag = 0; ReleaseCapture(); ClipCursor(NULL); CDooDleDoc* pDoc = GetDocument(); CShape* pShape; if(pDoc->CurrentDraw == DRAW_LINE)...{//直线 pShape = new CLine(m_pOrigin,point,pDoc->m_pWidth,pDoc->m_pStyle,pDoc->m_pColor);//所画直线数据 } if(pDoc->CurrentDraw == DRAW_RECTANGLE)...{//矩形 pShape = new CRectangle(m_pOrigin,point,pDoc->m_pWidth,pDoc->m_pStyle,pDoc->m_pColor); } if(pDoc->CurrentDraw == DRAW_ROUNDRECT)...{//圆矩形 int r = (abs(m_pOrigin.x-point.x)+abs(m_pOrigin.y-point.y))/6; pShape = new CRoundRect(m_pOrigin,point,r,pDoc->m_pWidth,pDoc->m_pStyle,pDoc->m_pColor); } if(pDoc->CurrentDraw == DRAW_FILLRECT)...{//填充矩形 pShape = new CFillRect(m_pOrigin,point,pDoc->m_pWidth,pDoc->m_pStyle,pDoc->m_pColor, pDoc->m_pFColor,pDoc->m_pHatch,pDoc->m_pHatchFlag); } if(pDoc->CurrentDraw == DRAW_CIRCLE)...{//圆 pShape = new CCircle(m_pOrigin,m_pPrev,pDoc->m_pWidth,pDoc->m_pStyle,pDoc->m_pColor); } if(pDoc->CurrentDraw == DRAW_ELLIPSE)...{//椭圆 pShape = new CEllipse(m_pOrigin,m_pPrev,pDoc->m_pWidth,pDoc->m_pStyle,pDoc->m_pColor); } pDoc->AddShape(pShape);//保存图形数据 pDoc->UpdateAllViews(NULL); } CScrollView::OnLButtonUp(nFlags, point);} 欢迎大家评论!
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