private void VisitLink(LinkLabel linkLabel, string?linkUrl = null)
{
if (WindowsUtility.ShellExecute(this, linkUrl ?? linkLabel.Text))
{
linkLabel.Links[0].Visited = true;
}
}
private IList <MdiTab> AddNewTabs(IList <MdiTab> tabs, HashSet <Form> skipForms)
{
// RemoveClosedTabs should have gotten rid of any tabs with null AssociatedForms,
// but filtering them out again just to be sure is safe and quick.
Dictionary <Form, MdiTab> formToTabMap = tabs.Where(t => t.AssociatedForm != null).ToDictionary(tab => tab.AssociatedForm !);
bool addedTabs = false;
foreach (Form form in this.MdiChildren)
{
if (IsAvailable(form) && !skipForms.Contains(form) && !formToTabMap.TryGetValue(form, out MdiTab? tab))
{
tab = new MdiTab(form);
tab.Click += this.Tab_Click;
tab.CloseClicked += this.Tab_CloseClicked;
if (this.UseFormIconAsNewTabImage && form.Icon != null)
{
tab.Image = WindowsUtility.GetSmallIconImage(form.Icon);
// Note: I originally set tab.ImageTransparentColor = Color.Transparent here,
// but that made some white areas in the icons appear transparent even though
// they shouldn't have been. That seems like a .NET bug since icons already
// have explicitly transparent areas.
}
form.FormClosed += this.ChildForm_FormClosed;
form.TextChanged += this.ChildForm_TextChanged;
// Add it to the beginning like VS does. This keeps new tabs from immediately going
// into the overflow area when lots of forms are open. This is also consistent with
// how activating a tab from the overflow area moves it to the beginning of the tab list.
this.Items.Insert(0, tab);
addedTabs = true;
}
}
// Update the tab list if any were added.
IList <MdiTab> result = addedTabs ? this.GetTabs() : tabs;
return(result);
}
