protected virtual void DrawItemBackground(TabItemPaintEventArgs e)
{
var rect = e.Bounds;
Color borderColor = Color.Empty;
if (e.Selected)
{
// 把BaseLineSize加回去
switch (e.Bar.Alignment)
{
case TabAlignment.Left:
rect.Width += e.Bar.BaseLineSize;
break;
case TabAlignment.Top:
rect.Height += e.Bar.BaseLineSize;
break;
case TabAlignment.Right:
rect.X -= e.Bar.BaseLineSize;
rect.Width += e.Bar.BaseLineSize;
break;
case TabAlignment.Bottom:
rect.Y -= e.Bar.BaseLineSize;
rect.Height += e.Bar.BaseLineSize;
break;
}
Color backColor = e.Item.BackColor ?? e.Bar.SelectedItemBackColor;
if (!backColor.IsEmpty)
{
//LinearGradientBrush backBrush = new LinearGradientBrush(e.Bounds, PaintHelper.GetLightColor(backColor), backColor, 90.0f);
var backBrush = new SolidBrush(backColor);
e.Graphics.FillRectangle(backBrush, rect);
}
borderColor = e.Bar.BaseLineColor;
}
else
{
Color backColor = e.Item.BackColor ?? e.Bar.ItemBackColor;
switch (e.Status)
{
case UIControlStatus.Hover:
backColor = e.Bar.HoverItemBackColor;
break;
}
if (!backColor.IsEmpty)
{
var backBrush = new SolidBrush(backColor);
e.Graphics.FillRectangle(backBrush, e.Item.Bounds);
borderColor = PaintHelper.AdjustColorS(PaintHelper.GetDarkColor(backColor, 0.15), 10, 20);
}
}
if (!borderColor.IsEmpty)
{
DrawItemBorder(e, rect, borderColor);
}
}