Exemple #1
0
        private void button_send_Click(object sender, EventArgs e)
        {
            try
            {
                if (TextBox_send.Text == "")
                {
                    MessageBox.Show("发送内容不能为空", "操作错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
                string text = TextBox_send.Text;
                while (is_sending)
                {
                }
                ;
                is_sending = true;
                TextBox_chat.SelectionAlignment = HorizontalAlignment.Right;
                string whole = Aliases[0] + "(" + members[0] + ")" + "   " + DateTime.Now.ToString() + "\n" + text + "\n";
                TextBox_chat.AppendText(whole);

                whole      = text + "\n";
                is_sending = false;
                TextBox_send.Clear();
                foreach (Socket sc in all_sockets)
                {
                    AsynSend(sc, whole);
                }
            }
            catch (Exception)
            {
                MessageBox.Show("连接失效", "网络错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
        }
Exemple #2
0
        private void ChangeFontStyle(FontStyle style)
        {
            if (style != FontStyle.Bold && style != FontStyle.Italic &&
                style != FontStyle.Underline)
            {
                throw new System.InvalidProgramException("字体格式错误");
            }
            RichTextBox tempRichTextBox = new RichTextBox();  //将要存放被选中文本的副本
            int         curRtbStart     = TextBox_send.SelectionStart;
            int         len             = TextBox_send.SelectionLength;
            int         tempRtbStart    = 0;
            Font        font            = TextBox_send.SelectionFont;

            if (len <= 1 && font != null) //与上边的那段代码类似,功能相同
            {
                if (style == FontStyle.Bold && font.Bold ||
                    style == FontStyle.Italic && font.Italic ||
                    style == FontStyle.Underline && font.Underline)
                {
                    TextBox_send.SelectionFont = new Font(font, font.Style ^ style);
                }
                else if (style == FontStyle.Bold && !font.Bold ||
                         style == FontStyle.Italic && !font.Italic ||
                         style == FontStyle.Underline && !font.Underline)
                {
                    TextBox_send.SelectionFont = new Font(font, font.Style | style);
                }
                return;
            }
            tempRichTextBox.Rtf = TextBox_send.SelectedRtf;
            tempRichTextBox.Select(len - 1, 1); //选中副本中的最后一个文字
                                                //克隆被选中的文字Font,这个tempFont主要是用来判断
                                                //最终被选中的文字是否要加粗、去粗、斜体、去斜、下划线、去下划线
            Font tempFont = (Font)tempRichTextBox.SelectionFont.Clone();

            //清空2和3
            for (int i = 0; i < len; i++)
            {
                tempRichTextBox.Select(tempRtbStart + i, 1);  //每次选中一个,逐个进行加粗或去粗
                if (style == FontStyle.Bold && tempFont.Bold ||
                    style == FontStyle.Italic && tempFont.Italic ||
                    style == FontStyle.Underline && tempFont.Underline)
                {
                    tempRichTextBox.SelectionFont =
                        new Font(tempRichTextBox.SelectionFont,
                                 tempRichTextBox.SelectionFont.Style ^ style);
                }
                else if (style == FontStyle.Bold && !tempFont.Bold ||
                         style == FontStyle.Italic && !tempFont.Italic ||
                         style == FontStyle.Underline && !tempFont.Underline)
                {
                    tempRichTextBox.SelectionFont =
                        new Font(tempRichTextBox.SelectionFont,
                                 tempRichTextBox.SelectionFont.Style | style);
                }
            }
            tempRichTextBox.Select(tempRtbStart, len);
            TextBox_send.SelectedRtf = tempRichTextBox.SelectedRtf; //将设置格式后的副本拷贝给原型
            TextBox_send.Select(curRtbStart, len);
        }
Exemple #3
0
 // 清空输入栏
 private void button_clear_Click(object sender, EventArgs e)
 {
     TextBox_send.Clear();
 }