给图片加热点是web开发中经常用到的一个功能。这方面的工具也不少。

为了更好的满足自己的需求，写了一个winform程序。

可以方便的给图片加热点，更方便灵活！

源码下载 http://download.csdn.net/download/qq_29939347/10150681

生成的代码：

1 2 

技术要点

 1 画图

 热点图形有 矩形，多边形，圆形等。为了统一处理，定义了接口：

1 interface IDrwaShap 2     { 3         void Draw(System.Drawing.Graphics g); 4         string GetLink(); 5         bool Hit(int x, int y); 6         bool IsChecked(); 7         void SetChecked(bool sel); 8         void SetEndPoint(System.Drawing.Point end); 9         void SetLink(string link);10 11         void AddPoint(int x,int y);12 13         void SetStartMovePoint(int x, int y);14         void SetCurMovePoint(int x, int y);15 16         int GetShapId();17 18         List
     
       GetPoint();19 20     }
     

矩形实现类为HotShapRect，多边形为HotShapPoly。

1  class HotShapPoly : PicHot.IDrwaShap  2     {  3         static Pen _drawPen = new Pen(Color.Red, 2);  4         static Pen _checkedPen = new Pen(Color.Blue, 2);  5   6         public int _shapId = 0;  7         private bool _checked = false;  8         private bool _startMove = false;  9  10         private Point _moveStartPoint = new Point(0, 0); 11         string _linkText = string.Empty; 12  13         List
     
       _listPoint = new List
      
       (); 14         public HotShapPoly() 15         { 16             _shapId = AppNum.GetId(); 17         } 18         public int GetShapId() 19         { 20             return _shapId; 21         } 22  23         public List
       
         GetPoint() 24         { 25             return _listPoint; 26         } 27         public void AddPoint(int x, int y) 28         { 29             Point newPt = new Point(x,y); 30             foreach (Point p in _listPoint) 31             { 32                 if (p == newPt) 33                     return; 34             } 35  36             _listPoint.Add(new Point(x, y));  37         } 38  39         public void SetLink(string link) 40         { 41             _linkText = link; 42         } 43         public string GetLink() 44         { 45             return _linkText; 46         } 47         public void SetEndPoint(Point end) 48         { 49             AddPoint(end.X, end.Y); 50         } 51  52         public void SetChecked(bool sel) 53         { 54             _checked = sel; 55             _startMove = _checked; 56         } 57  58         public bool IsChecked() 59         { 60             return _checked; 61         } 62  63         public void SetStartMovePoint(int x, int y) 64         { 65             _moveStartPoint = new Point(x, y); 66         } 67         public void SetCurMovePoint(int x, int y) 68         { 69             if (!_startMove) 70                 return; 71  72             Point moveEndPoint = new Point(x, y); 73             List
        
          _listPointNew = new List
         
          (); 74             foreach (Point p in _listPoint) 75             { 76                int m =  p.X + (moveEndPoint.X - _moveStartPoint.X); 77                int n =  p.Y + (moveEndPoint.Y - _moveStartPoint.Y); 78                _listPointNew.Add(new Point(m,n)); 79             } 80             _listPoint = _listPointNew; 81  82             _moveStartPoint = moveEndPoint; 83         } 84  85  86         public bool Hit(int x, int y) 87         { 88             if (_listPoint.Count <= 2) 89                 return false; 90  91             Point hitPt = new Point(x,y); 92  93             GraphicsPath myGraphicsPath = new GraphicsPath(); 94             Region myRegion = new Region(); 95             myGraphicsPath.Reset(); 96  97             Point[] points = _listPoint.ToArray(); 98             myGraphicsPath.AddPolygon(points);//points); 99             myRegion.MakeEmpty();100             myRegion.Union(myGraphicsPath);101             //返回判断点是否在多边形里102             bool myPoint = myRegion.IsVisible(hitPt);103 104             return myPoint;105         }106 107         public void Draw(Graphics g)108         {109              if (_listPoint.Count <= 2)110                 return ;111 112             Pen pen = _checked ? _checkedPen : _drawPen;113 114             g.DrawPolygon(pen, _listPoint.ToArray());115         }116 117         internal bool IsValidate()118         {119             if (_listPoint.Count <= 2)120                 return false;121             return true;122         }123 124     }
         
        
       
      
     

2 生成代码

  

1  private void buttonCreateHtml_Click(object sender, EventArgs e) 2         { 3             StringBuilder sb = new StringBuilder(); 4  5             string mapName = string.Format("Map_{0}", DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss")); 6             sb.AppendFormat("\r\n", fileName, mapName); 7             sb.AppendFormat("");14             Clipboard.SetText(sb.ToString());15             textBoxHtml.Text = sb.ToString();16 17             MessageBox.Show(this, "代码已复制到剪贴板！");18         }

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