private long SendImageCore(LanUser user, Image image, string imagePath)
{
string path;
if (image != null)
{
path = LanConfig.Instance.GetTempFileName(".png");
image.Save(path, ImageFormat.Png);
}
else
{
path = imagePath;
}
long len = LanFile.GetFileLength(path);
if (len > UdpClientEx.UDP_MAX_BUF_SIZE)
{
//图像文件过大的话用文件形式发送
return(SendFile(user, path, true));
}
else
{
UdpPacket packet = new UdpPacket();
packet.Address = user.IP;
packet.Port = user.Port;
packet.ToMAC = user.MAC;
packet.Command = UdpPacket.CMD_SEND_IMAGE | UdpPacket.CMD_OPTION_NEED_RESPONSE;
packet.FromMAC = this.MAC;
UdpPacketImageExtend extend = new UdpPacketImageExtend();
extend.EncryptKey = user.SecurityKeys.Public;
extend.Image = image ?? Image.FromFile(path);
packet.Extend = extend;
_client.Send(packet);
if (image != null)
{
//直接发送图像的话，临时图片就删除
LanFile.Delete(path);
}
return(packet.ID);
}
}
private void SendFile_Click(object sender, EventArgs e)
{
if (!this.SendMessageEnabled)
{
return;
}
using (OpenFileDialog ofd = new OpenFileDialog())
{
ofd.Filter = "所有文件|*.*";
if (ofd.ShowDialog(this) == DialogResult.OK)
{
string fileName = ofd.FileName;
long id = User.SendFile(Contacter, fileName);
//保存发送记录
Store.Models.FileMessage m = new Store.Models.FileMessage();
m.FromUserId = this.User.ID;
m.ToUserId = this.Contacter.ID;
m.OriginFilePath = fileName;
m.FileName = Path.GetFileName(fileName);
m.FileLength = LanFile.GetFileLength(fileName);
m.Flag = true; //默认成功，后面按照失败结果设定为false
MessageListItem item = new MessageListItem();
item.ID = id;
item.Message = m;
item.User = this.User;
item.State = MessageState.Sending;
item.Save();
AddMessageItem(item, true);
OnSendMessage(m);
}
}
}