/// <summary>
/// Sets a HeaderXOffset of the page and makes it remake its contour
/// also increases 'offset' so next pages will get a correct offset
/// </summary>
/// <param name="pos"></param>
/// <param name="page"></param>
/// <param name="offset"></param>
void SetItemHeaderOffset(Position pos, TabPage page, ref Double offset)
{
if (this.HeadersPosition == Position.Left || this.HeadersPosition == Position.Right)
{
page.HeaderVerticalOffset = offset;
offset += page.IsActive ? page.HeaderSizeActive.Height : page.HeaderSizePassive.Height;
}
else
{
page.HeaderHorizontalOffset = offset;
offset += page.IsActive ? page.HeaderSizeActive.Width : page.HeaderSizePassive.Width;
}
offset -= 1;
page.SetClip();
}
/// <summary>
/// Sets a page as current and brings it to the front changing ZIndex property of all TabPages if it's active page -> 1 otherwise -> 0
/// </summary>
/// <param name="pageToSet"></param>
void ChangePage(TabPage pageToSet)
{
if (pageToSet == null || pageToSet == this.currentPage)
{
return;
}
this.currentPage = pageToSet;
this.tabPageHeader.Text = this.currentPage.Header;
double offset = 0;
foreach (TabPage page in this.tabPages)
{
if (page != pageToSet)
{
PageHolder.SetZIndex(page, 0);
page.IsActive = false;
}
else
{
PageHolder.SetZIndex(page, 1);
page.IsActive = true;
}
this.SetItemHeaderOffset(this.HeadersPosition, page, ref offset);
}
}