/**
* Populates the chat with messages, validating the type of the message
* if the userName is admin, makes the background of the message green;
* if the userName is different from the current user - makes it light grey;
* if the userName is current's user userName, makes no changes to the layout;
* @param chatMessages - the list of messages, receved from the server, that will help populate the form, providing objects
*/
public void populateChat(List <ChatMessage> chatMessages)
{
if (isAdmin == false)
{
ChatListItemLayout[] chatListItems = new ChatListItemLayout[chatMessages.Count];
for (int i = 0; i < chatListItems.Length; i++)
{
chatListItems[i] = new ChatListItemLayout();
chatListItems[i].UserName = chatMessages[i].userName;
chatListItems[i].UserMessage = chatMessages[i].userMessage;
if (chatListItems[i].UserName != currentUserName)
{
if (chatListItems[i].UserName == "admin")
{
chatListItems[i].BackColor = Color.FromArgb(192, 255, 192);
}
else
{
chatListItems[i].BackColor = Color.FromArgb(209, 209, 209);
}
}
UpdateFlowLayoutPanel(chatListItems[i], i, chatListItems.Length - 1, this.isAdmin);
}
}
if (isAdmin == true)
{
ChatListItemAdmin[] chatListItemsAdmin = new ChatListItemAdmin[chatMessages.Count];
for (int i = 0; i < chatListItemsAdmin.Length; i++)
{
chatListItemsAdmin[i] = new ChatListItemAdmin(this);
chatListItemsAdmin[i].UserName = chatMessages[i].userName;
chatListItemsAdmin[i].UserMessage = chatMessages[i].userMessage;
chatListItemsAdmin[i].MessageTimeStamp = chatMessages[i].timeStamp;
if (chatListItemsAdmin[i].UserName != currentUserName)
{
if (chatListItemsAdmin[i].UserName == "admin")
{
chatListItemsAdmin[i].BackColor = Color.FromArgb(192, 255, 192);
}
else
{
chatListItemsAdmin[i].BackColor = Color.FromArgb(209, 209, 209);
}
}
UpdateFlowLayoutPanel(chatListItemsAdmin[i], i, chatListItemsAdmin.Length - 1, this.isAdmin);
}
}
}
/**
* Actually adds the objects into the FlowLayoutPanel
* @param currentChatMessageObject - the object, that needs to be added to the list (to the FlowLayoutPanel)
* @param currentItemCount - the amount of messages currently there
* @param listSize - size of the list with messages
* @param isAdmin - a boolean, that has the value true or false, to indicate, whether the user is a superUser or not
*/
private void UpdateFlowLayoutPanel(Object currentChatMessageObject, int currentItemCount, int listSize, bool isAdmin)
{
Thread FlowLayoutThread = new Thread(delegate() {
if (flowLayoutPanel1.InvokeRequired)
{
flowLayoutPanel1.Invoke(new MethodInvoker(delegate
{
if (flowLayoutPanel1.Controls.Count < 0)
{
flowLayoutPanel1.Controls.Clear();
}
else
{
if (currentItemCount == 0)
{
flowLayoutPanel1.Controls.Clear();
}
if (isAdmin == true)
{
ChatListItemAdmin currentChatMessageAdmin = (ChatListItemAdmin)currentChatMessageObject;
flowLayoutPanel1.Controls.Add(currentChatMessageAdmin);
if (currentItemCount == listSize)
{
flowLayoutPanel1.ScrollControlIntoView(currentChatMessageAdmin);
}
}
else
{
ChatListItemLayout currentChatMessageUser = (ChatListItemLayout)currentChatMessageObject;
flowLayoutPanel1.Controls.Add(currentChatMessageUser);
if (currentItemCount == listSize)
{
flowLayoutPanel1.ScrollControlIntoView(currentChatMessageUser);
}
}
}
}));
}
});
FlowLayoutThread.Start();
}
