private void MENUITEM_MessageBuffer_Click(object sender, RoutedEventArgs e)
{
MenuItem item = (sender as MenuItem);
MessageBufferModel Selected = item.DataContext as MessageBufferModel;
switch (item.Tag.ToString().ToUpper())
{
case "MESSAGEBUFFERREMOVE":
LIST_Messages.Items.Remove(Selected);
; break;
}
}
/// <summary>
/// 删除一条显示的消息缓存
/// </summary>
public bool RemoveMessageBufferItem(long FromNum)
{
foreach (var item in LIST_Messages.Items)
{
MessageBufferModel msg = item as MessageBufferModel;
if (msg.Msg.FromLoginNumber == FromNum)
{
LIST_Messages.Items.Remove(msg);
return(true);
}
}
return(false);
}
/// <summary>
/// 判断是否有某个人的消息缓存
/// </summary>
/// <param name="FromNum">发消息的人</param>
/// <param name="Msg">返回的消息</param>
/// <returns>是否有此人的消息</returns>
public bool HasMessageBufferItem(long FromNum, out MessageBufferModel Msg)
{
foreach (var item in LIST_Messages.Items)
{
MessageBufferModel msg = item as MessageBufferModel;
if (msg.Msg.FromLoginNumber == FromNum)
{
Msg = msg;
return(true);
}
}
Msg = null;
return(false);
}
private void ITEM_MessageBufferItem_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
MessageBufferModel msg = LIST_Messages.SelectedItem as MessageBufferModel;
if (msg == null)
{
return;
}
if (GetUserByFriends(msg.From.UloginNumber ?? 0) != null)
{
new ChatForm(UserSource).Show(msg.From);
}
else
{
MessageBox.Show("未成为好友，无法交流");
}
}
/// <summary>
/// 更新一个消息缓存的显示,包括添加
/// </summary>
/// <param name="Msg">消息</param>
public void UpdateMessageBufferItem(MessageModel Msg)
{
MessageBufferModel UpdateItem = null;
if (HasMessageBufferItem(Msg.FromLoginNumber, out UpdateItem))
{
LIST_Messages.Items.Remove(UpdateItem);
}
String LastMsg = (Msg.MessageContent as MessageContent_Base).ToMessageContent(null).ToString();
if (Msg.MessageContent is MessageContent_Image)
{
LastMsg = "[图片]";
}
LIST_Messages.Items.Insert(0, new MessageBufferModel()
{
MessageCount = MessageQueueBuffer[Msg.FromLoginNumber].Count,
Msg = Msg,
From = GetUserByFriends(Msg.FromLoginNumber),
LastMessage = LastMsg,
});
}
