C#实现微信聊天对话框

前两天的《C#实现微信聊天对话框》大师给了不少的好的建议,本文基于进步并进行了改进,望大师一路来评论辩论~~~

之前靠山的边框采取靠山图片的体式格式,今朝已采取GDI+直接绘制的体式格式,并且添加了靠山色以增长用户体验~~


具本的代码如下:

  1 using System;

  2 using System.ComponentModel;

  3 using System.Drawing;

  4 using System.Drawing.Drawing2D;

  5 using System.Windows.Forms;

  6 

  7 namespace Sun.WinFormControl

  8 {

  9     /// <summary>

 10     /// 类似微信的聊天对话框。

 11     /// </summary>

 12     /// <remarks>

 13     /// Author:SunYujing

 14     /// DateTime:2012-07-19

 15     /// </remarks>

 16     public class WxChartBox : Control

 17     {

 18         /// <summary>

 19         /// 机关办法。

 20         /// </summary>

 21         public WxChartBox()

 22         {

 23             SetStyle(ControlStyles.DoubleBuffer, true);                   //双缓冲防止重绘时闪烁

 24             SetStyle(ControlStyles.AllPaintingInWmPaint, true);           //忽视 WM_ERASEBKGND 窗口消息削减闪烁

 25             SetStyle(ControlStyles.UserPaint, true);                      //自定义绘制控件内容

 26             SetStyle(ControlStyles.SupportsTransparentBackColor, true);   //模仿透明            

 27             SetStyle(ControlStyles.Selectable, false);                     //接管核心

 28             Size = new Size(50060);                                      //初始大小

 29             Font = new Font("微软雅黑"10);

 30         }

 31         /// <summary>

 32         /// 用户名。

 33         /// </summary>

 34         private string _username = "用户名";

 35         /// <summary>

 36         /// 消息日期时候。

 37         /// </summary>

 38         private DateTime _messagetime = DateTime.Now;

 39         /// <summary>

 40         /// 消息内容。

 41         /// </summary>

 42         private string _messagecontent = "消息内容";

 43         /// <summary>

 44         /// 每行消息数据的字节数。

 45         /// </summary>

 46         //private int _perlinebit = 68;

 47         /// <summary>

 48         /// 每行字符数。

 49         /// </summary>

 50         private int _perlinechar = 35;

 51         /// <summary>

 52         /// 消息内容的行高。

 53         /// </summary>

 54         private int _lineheight = 22;

 55         /// <summary>

 56         /// 靠山图高。

 57         /// </summary>

 58         private int _iheight = 8;

 59         /// <summary>

 60         /// 靠山图宽。

 61         /// </summary>

 62         private int _iwidth = 8;

 63         /// <summary>

 64         /// 消息类型。

 65         /// </summary>

 66         private MessageType _messagetype = MessageType.Receive;

 67         /// <summary>

 68         /// 获取或设置用户名。

 69         /// </summary>

 70         [Description("获取或设置用户名。")]

 71         public string UserName

 72         {

 73             get

 74             {

 75                 return _username;

 76             }

 77             set

 78             {

 79                 _username = value;

 80                 Invalidate(false);

 81             }

 82         }

 83 

 84         /// <summary>

 85         /// 获取或设置用户名。

 86         /// </summary>

 87         [Description("获取或设置用户名。")]

 88         public DateTime MessageTime

 89         {

 90             get

 91             {

 92                 return _messagetime;

 93             }

 94             set

 95             {

 96                 _messagetime = value;

 97                 Invalidate(false);

 98             }

 99         }

100 

101         /// <summary>

102         /// 获取或设置消息内容。

103         /// </summary>

104         [Description("获取或设置消息内容。")]

105         public string MessageContent

106         {

107             get

108             {

109                 return _messagecontent;

110             }

111             set

112             {

113                 _messagecontent = value;

114                 Invalidate(false);

115             }

116         }

117 

118         /// <summary>

119         /// 获取或设置消息的类型。

120         /// </summary>

121         [Description("获取或设置消息的类型。")]

122         public MessageType MType

123         {

124             get

125             {

126                 return _messagetype;

127             }

128             set

129             {

130                 _messagetype = value;

131                 Invalidate(false);

132             }

133         }

134         /// <summary>

135         /// 自定义绘制。

136         /// </summary>

137         protected override void OnPaint(PaintEventArgs e)

138         {

139             base.OnPaint(e);

140             Graphics g = e.Graphics;

141             g.SmoothingMode = SmoothingMode.HighQuality;

142             g.PixelOffsetMode = PixelOffsetMode.HighQuality;

143             Size = new Size(500, InitHeight());

144             DrawBackColor(g);

145             DrawBackGroundLine(g);

146             DrawText(g);

147             DrawLine(g);

148             DrawMessageContent(g);

149         }

150         /// <summary>

151         /// 绘制用户名和消息时候。

152         /// </summary>

153         private void DrawText(Graphics g)

154         {

155             Font f = new Font("微软雅黑"10,FontStyle.Bold);

156             g.DrawString(UserName+"  "+MessageTime.ToString("yyyy-MM-dd HH:mm:ss"), f, new SolidBrush(ForeColor), 8+_iwidth, 2);

157         }

158         /// <summary>

159         /// 绘制一条直线。

160         /// </summary>

161         private void DrawLine(Graphics g)

162         {

163             Color color = Color.Green;

164             if(MType==MessageType.Receive)

165                 color = Color.Red;

166             Pen p = new Pen(color);

167             p.Width = 1;

168             g.DrawLine(p, 4 + _iwidth, 22, Width - 8 - _iwidth , 22);

169         }

170         /// <summary>

171         /// 绘制短信内容。

172         /// </summary>

173         private void DrawMessageContent(Graphics g)

174         {

175             int initheight = 22;

176             int rowscount = MessageLineCount();

177             string contents = MessageContent;

178             string content = "";

179             forint i = 0; i < rowscount; i++180             {

181                 if (contents.Length > _perlinechar)

182                 {

183                     content = contents.Substring(0, _perlinechar);

184                     contents = contents.Remove(0, _perlinechar);

185                 }

186                 else

187                 {

188                     content = contents;

189                 }

190                 g.DrawString(content, Font, new SolidBrush(ForeColor), 4+_iwidth, initheight + i * _lineheight);

191             }

192         }

193         /// <summary>

194         /// 绘制边框。

195         /// </summary>

196         private void DrawBackGroundLine(Graphics g)

197         {

198             Pen p = new Pen(Color.Black);

199             p.Width = 1;

200             g.DrawArc(p, _iwidth, 0, _iwidth, _iheight, 18090);

201             g.DrawLine(p, (int)(_iwidth * 1.5), 0, Width - (int)(_iwidth * 1.5), 0);

202             g.DrawArc(p, Width - _iwidth * 20, _iwidth, _iheight, 27090);

203             if (MType == MessageType.Send)

204             {

205                 g.DrawLine(p, Width - _iwidth, (int)(_iheight * 0.5), Width - _iwidth, (int)(_iheight * 1.5));

206                 g.DrawLine(p, Width - _iwidth, (int)(_iheight * 1.5), Width, _iheight * 2);

207                 g.DrawLine(p, Width - _iwidth, (int)(_iheight * 2.5), Width, _iheight * 2);

208                 g.DrawLine(p, Width - _iwidth, (int)(_iheight * 2.5), Width - _iwidth, Height - (int)(_iheight * 0.5));

209             }

210             else

211             {

212                 g.DrawLine(p, Width - _iwidth, (int)(_iheight * 0.5), Width - _iwidth, Height - (int)(_iheight * 0.5));

213             }

214             g.DrawArc(p, Width - _iwidth * 2, Height - _iheight,_iwidth,_iheight, 090);

215             g.DrawLine(p, (int)(_iwidth * 1.5), Height, Width - (int)(_iwidth * 1.5), Height);

216             g.DrawArc(p, _iwidth, Height - _iheight, _iwidth, _iheight, 9090);

217             if (MType == MessageType.Receive)

218             {

219                 g.DrawLine(p, _iwidth, (int)(_iheight * 0.5), _iwidth, (int)(_iheight * 1.5));

220                 g.DrawLine(p, 0, _iheight * 2, _iwidth, (int)(_iheight * 1.5));

221                 g.DrawLine(p, 0, _iheight * 2, _iwidth, (int)(_iheight * 2.5));

222                 g.DrawLine(p, _iwidth, (int)(_iheight * 2.5), _iwidth, Height - (int)(_iheight * 0.5));

223             }

224             else

225             {

226                 g.DrawLine(p, _iwidth, (int)(_iheight * 0.5), _iwidth, Height - (int)(_iheight * 0.5));

227             }

228         }

229         /// <summary>

230         /// 绘制靠山色。

231         /// </summary>

232         private void DrawBackColor(Graphics g)

233         {

234             Brush b = Brushes.YellowGreen;

235             Point[] ps = new Point[3];

236             if (MType == MessageType.Receive)

237             {

238                 ps[0] = new Point(0, _iheight * 2);

239                 ps[1] = new Point(_iwidth, (int)(_iheight * 1.5));

240                 ps[2] = new Point(_iwidth, (int)(_iheight * 2.5));

241             }

242             else

243             {

244                 b = Brushes.Goldenrod;

245                 ps[0] = new Point(Width - _iwidth, (int)(_iheight * 1.5));

246                 ps[1] = new Point(Width - _iwidth, (int)(_iheight * 2.5));

247                 ps[2] = new Point(Width, _iheight * 2);

248             }

249             g.FillEllipse(b, _iwidth, 0, _iwidth, _iheight);

250             g.FillEllipse(b, Width - _iwidth * 20, _iwidth, _iheight);

251             g.FillEllipse(b, Width - _iwidth * 2, Height-_iheight, _iwidth, _iheight);

252             g.FillEllipse(b, _iwidth, Height - _iheight, _iwidth, _iheight);

253             g.FillRectangle(b, _iwidth, (int)(_iheight*0.5), Width - _iwidth * 2, Height - _iheight);

254             g.FillRectangle(b, (int)(_iwidth * 1.5), 0, Width - _iwidth * 3, (int)(_iheight * 0.5));

255             g.FillRectangle(b, (int)(_iwidth * 1.5), Height - (int)(_iheight * 0.5), Width - _iwidth * 3, (int)(_iheight * 0.5));

256             g.FillPolygon(b, ps);

257         }

258         /// <summary>

259         /// 动态策画控件高度。

260         /// </summary>

261         /// <returns>控件高度。</returns>

262         public int InitHeight()

263         {

264             int rowCount = MessageLineCount();

265             int iRows = rowCount == 01 : rowCount;

266             return iRows * _lineheight + 22;

267         }

268         /// <summary>

269         /// 获作废息行数。

270         /// </summary>

271         /// <returns>消息行数。</returns>

272         private int MessageLineCount()

273         {

274             //int MessageBits = Encoding.Default.GetByteCount(MessageContent.Trim());

275             //return (int)Math.Ceiling(MessageBits * 1.0 / _perlinebit);

276             int MessageCharCount = MessageContent.Trim().Length;

277             returnint)Math.Ceiling(MessageCharCount * 1.0 / _perlinechar);

278         }

279     }

280 

281     /// <summary>

282     /// 消息类型。

283     /// </summary>

284     public enum MessageType

285     {

286         /// <summary>

287         /// 发送消息。

288         /// </summary>

289         Send,

290         /// <summary>

291         /// 接管消息。

292         /// </summary>

293         Receive

294     }

295 }

你可能感兴趣的:(C#实现微信聊天对话框)