/// <summary>
/// Open a new tab given a scene file to load. If the specified scene is
/// already open in a tab, the existing
/// tab is selected in the UI (if requested) and no tab is added.
/// </summary>
/// <param name="file">Source file</param>
/// <param name="async">Specifies whether the data is loaded asynchr.</param>
/// <param name="setActive">Specifies whether the newly added tab will
/// be selected when the loading process is complete.</param>
public void AddTab(string file, bool async = true, bool setActive = true)
{
AddRecentItem(file);
// check whether the scene is already loaded
for (int j = 0; j < tabControl1.TabPages.Count; ++j)
{
var tab = UiState.TabForId(tabControl1.TabPages[j]);
Debug.Assert(tab != null);
if (tab.File == file)
{
// if so, activate its tab and return
if (setActive)
{
SelectTab(tabControl1.TabPages[j]);
}
return;
}
}
var key = GenerateTabKey();
tabControl1.TabPages.Add(key, GenerateTabCaption(file) + LoadingTitlePostfix);
var ui = tabControl1.TabPages[key];
ui.ToolTipText = file;
tabControl1.ShowToolTips = true;
PopulateUITab(ui);
var t = new Tab(ui, file);
UiState.AddTab(t);
if (TabChanged != null)
{
TabChanged(t, true);
}
if (async)
{
var th = new Thread(() => OpenFile(t, setActive));
th.Start();
}
else
{
OpenFile(t, setActive);
}
if (_emptyTab != null)
{
CloseTab(_emptyTab);
}
}
/// <summary>
/// Add an "empty" tab if it doesn't exist yet
/// </summary>
private void AddEmptyTab()
{
// create default tab
tabControl1.TabPages.Add("empty");
_emptyTab = tabControl1.TabPages[tabControl1.TabPages.Count - 1];
PopulateUITab(_emptyTab);
ActivateUiTab(_emptyTab);
// happens when being called from ctor
if (_ui != null)
{
_ui.AddTab(new Tab(_emptyTab, null));
}
}
