一个web图片热点生成工具（winform开发）

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：

<img src = "D:12.jpg" usemap = "#Map_2017-12-08-10-49-17" >
<map name="Map_2017-12-08-10-49-17" >
<area shape="polygon" coords="144,229,228,198,266,152,305,181,319,247,405,288,396,324,353,348,340,381,307,391,278,395,280,422,291,427,279,444,284,453,264,461,225,444,187,452,133,465,102,454,90,459,55,459,50,432,17,412,15,395,0,373,11,372,13,310,45,320,83,311,122,301,136,278" href = "http://www.sina.com.cn/" >
<area shape="polygon" coords="784,426,768,475,787,491,815,491,833,475,854,452,863,435,881,418,903,396,867,390,855,408,842,416,830,401" href = "https://www.cnblogs.com/" >
<area shape="polygon" coords="39,474,322,474,322,663,39,663" href = "" >
<area shape="polygon" coords="427,322,567,341,623,322,673,295,681,275,672,257,698,248,746,227,803,173,770,154,721,165,732,126,766,99,768,48,759,22,779,12,786,39,806,49,824,55,844,50,855,87,857,99,821,154,842,181,831,198,889,260,845,301,817,321,740,318,722,348,676,389,655,413,640,433,591,422,589,472,543,432,550,400,505,417,467,382,435,370" href = "" >
</map>

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：

interface IDrwaShap
    {
        void Draw(System.Drawing.Graphics g);
        string GetLink();
        bool Hit(int x, int y);
        bool IsChecked();
        void SetChecked(bool sel);
        void SetEndPoint(System.Drawing.Point end);
        void SetLink(string link);

        void AddPoint(int x,int y);

        void SetStartMovePoint(int x, int y);
        void SetCurMovePoint(int x, int y);

        int GetShapId();

        List<Point> GetPoint();

    }

矩形实现类为HotShapRect，多边形为HotShapPoly。

 class HotShapPoly : PicHot.IDrwaShap
    {
        static Pen _drawPen = new Pen(Color.Red, 2);
        static Pen _checkedPen = new Pen(Color.Blue, 2);

        public int _shapId = 0;
        private bool _checked = false;
        private bool _startMove = false;

        private Point _moveStartPoint = new Point(0, 0);
        string _linkText = string.Empty;

        List<Point> _listPoint = new List<Point>();
        public HotShapPoly()
        {
            _shapId = AppNum.GetId();
        }
        public int GetShapId()
        {
            return _shapId;
        }

        public List<Point> GetPoint()
        {
            return _listPoint;
        }
        public void AddPoint(int x, int y)
        {
            Point newPt = new Point(x,y);
            foreach (Point p in _listPoint)
            {
                if (p == newPt)
                    return;
            }

            _listPoint.Add(new Point(x, y)); 
        }

        public void SetLink(string link)
        {
            _linkText = link;
        }
        public string GetLink()
        {
            return _linkText;
        }
        public void SetEndPoint(Point end)
        {
            AddPoint(end.X, end.Y);
        }

        public void SetChecked(bool sel)
        {
            _checked = sel;
            _startMove = _checked;
        }

        public bool IsChecked()
        {
            return _checked;
        }

        public void SetStartMovePoint(int x, int y)
        {
            _moveStartPoint = new Point(x, y);
        }
        public void SetCurMovePoint(int x, int y)
        {
            if (!_startMove)
                return;

            Point moveEndPoint = new Point(x, y);
            List<Point> _listPointNew = new List<Point>();
            foreach (Point p in _listPoint)
            {
               int m =  p.X + (moveEndPoint.X - _moveStartPoint.X);
               int n =  p.Y + (moveEndPoint.Y - _moveStartPoint.Y);
               _listPointNew.Add(new Point(m,n));
            }
            _listPoint = _listPointNew;

            _moveStartPoint = moveEndPoint;
        }


106 
        public void Draw(Graphics g)
        {
             if (_listPoint.Count <= 2)
                return ;

            Pen pen = _checked ? _checkedPen : _drawPen;

            g.DrawPolygon(pen, _listPoint.ToArray());
        }

        internal bool IsValidate()
        {
            if (_listPoint.Count <= 2)
                return false;
            return true;
        }

    }

2 生成代码

  

 private void buttonCreateHtml_Click(object sender, EventArgs e)
        {
            StringBuilder sb = new StringBuilder(); 416 
            MessageBox.Show(this, "代码已复制到剪贴板！");
        }

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