protected override void OnPaint(PaintEventArgs e)
{
var G = e.Graphics;
G.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
G.SmoothingMode = SmoothingMode.HighQuality;
G.PixelOffsetMode = PixelOffsetMode.HighQuality;
G.Clear(_BaseColour);
VSListBoxItem AllItems = null;
int Offset = Convert.ToInt32(VerticalScrollbar.Value * (VerticalScrollbar.Maximum + (Height - (ItemHeight))));
int StartIndex = 0;
if (Offset == 0)
{
StartIndex = 0;
}
else
{
StartIndex = Convert.ToInt32(Offset / ItemHeight / VerticalScrollbar.Maximum);
}
int EndIndex = Math.Min(StartIndex + Convert.ToInt32(Math.Truncate((double)(Height / ItemHeight))), _Items.Count - 1);
if (!_DontShowInnerScrollbarBorder && !_ShowWholeInnerBorder)
{
G.DrawLine(new Pen(_BorderColour, 2F), VerticalScrollbar.Location.X - 1, 0, VerticalScrollbar.Location.X - 1, Height);
}
for (int I = StartIndex; I < _Items.Count; I++)
{
AllItems = Items[I];
int Y = ((I * ItemHeight) + 1 - Offset) + Convert.ToInt32((ItemHeight / 2.0) - 8);
if (_SelectedItems.Contains(AllItems))
{
G.FillRectangle(new SolidBrush(_SelectedItemColour), new Rectangle(0, (I * ItemHeight) + 1 - Offset, Width - 19, ItemHeight - 1));
}
else
{
G.FillRectangle(new SolidBrush(_NonSelectedItemColour), new Rectangle(0, (I * ItemHeight) + 1 - Offset, Width - 19, ItemHeight - 1));
}
G.DrawLine(new Pen(_BorderColour), 0, ((I * ItemHeight) + 1 - Offset) + ItemHeight - 1, Width - 18, ((I * ItemHeight) + 1 - Offset) + ItemHeight - 1);
if (G.MeasureString(AllItems.Text, new Font("Segoe UI", 8)).Width > (_SelectedWidth) - 30)
{
G.DrawString(AllItems.Text, new Font("Segoe UI", 8), new SolidBrush(_FontColour), new Rectangle(7, Y, Width - 35, 15));
G.DrawString("...", new Font("Segoe UI", 8), new SolidBrush(_FontColour), new Rectangle(Width - 32, Y, 15, 15));
}
else
{
G.DrawString(AllItems.Text, new Font("Segoe UI", 8), new SolidBrush(_FontColour), new Rectangle(7, Y, Width - 34, Y + 10));
}
G.ResetClip();
}
G.DrawRectangle(new Pen(Color.FromArgb(35, 35, 35), 2F), 1, 1, Width - 2, Height - 2);
G.InterpolationMode = (InterpolationMode)7;
if (_ShowWholeInnerBorder)
{
G.DrawLine(new Pen(_BorderColour, 2F), VerticalScrollbar.Location.X - 1, 0, VerticalScrollbar.Location.X - 1, Height);
}
}
public void AddItem(string Items)
{
VSListBoxItem Item = new VSListBoxItem();
Item.Text = Items;
_Items.Add(Item);
Invalidate();
InvalidateScroll();
}
public void AddItems(string[] Items)
{
foreach (var I in Items)
{
VSListBoxItem Item = new VSListBoxItem();
Item.Text = I;
_Items.Add(Item);
}
Invalidate();
InvalidateScroll();
}
public void RemoveItem(VSListBoxItem item)
{
_Items.Remove(item);
Invalidate();
InvalidateScroll();
}