protected override void OnDrawItem(DrawItemEventArgs e)
{
if (Items.Count == 0)
{
return;
}
var g = e.Graphics;
using (var brush = new SolidBrush(BackColor))
{
g.FillRectangle(brush, 0, e.Bounds.Y, e.Bounds.Width, 16);
}
var boxColor = ColorTranslator.FromHtml(BoxColor);
using (var pen = new Pen(boxColor))
{
g.DrawRectangle(pen, 0, e.Bounds.Y + 1, 12, 12);
}
if (CheckedIndices.Contains(e.Index))
{
using (var brush = new SolidBrush(boxColor))
{
g.FillRectangle(brush, 2, e.Bounds.Y + 3, 9, 9);
}
}
var size = g.MeasureString(Text, Font);
using (var brush = new SolidBrush(ForeColor))
{
g.DrawString(Items[e.Index].ToString(), Font, brush,
new Rectangle(16, // standard icon size
e.Bounds.Y,
e.Bounds.Width - 16,
(int)size.Height),
new StringFormat
{
Trimming = StringTrimming.EllipsisCharacter,
FormatFlags = StringFormatFlags.LineLimit | StringFormatFlags.NoWrap
});
}
}
protected override void OnDrawItem(DrawItemEventArgs e)
{
if (Items.Count == 0)
{
return; //sanity check
}
IColoredListBoxItem item = (IColoredListBoxItem)Items[e.Index];
// Draw background
e.DrawBackground();
// Draw checkbox
CheckBoxRenderer.DrawCheckBox(e.Graphics, new Point(e.Bounds.Left + 1, e.Bounds.Top + 1), CheckedIndices.Contains(e.Index) ? CheckBoxState.CheckedNormal : CheckBoxState.UncheckedNormal);
// Draw warning icon
if (item.ShowWarning && WarningIcon != null)
{
e.Graphics.DrawImage(WarningIcon, e.Bounds.Left + e.Bounds.Height + 2, e.Bounds.Top, WarningIcon.Width, WarningIcon.Height);
}
else // Draw color rectangle
{
using (SolidBrush bg = new SolidBrush(item.Color))
{
e.Graphics.FillRectangle(bg, e.Bounds.Left + e.Bounds.Height + 2, e.Bounds.Top + 2, e.Bounds.Height, e.Bounds.Height - 5);
}
using (Pen outline = new Pen(Color.Black))
{
e.Graphics.DrawRectangle(outline, e.Bounds.Left + e.Bounds.Height + 2, e.Bounds.Top + 2, e.Bounds.Height, e.Bounds.Height - 5);
}
}
// Draw text
int offset = e.Bounds.Left + e.Bounds.Height * 2 + 4;
Rectangle textbounds = new Rectangle(offset, e.Bounds.Top, e.Bounds.Width - offset, e.Bounds.Height);
e.Graphics.DrawString(item.ToString(), e.Font, new SolidBrush(e.ForeColor), textbounds.Left, textbounds.Top);
// Draw focus rectangle
if (e.State == DrawItemState.Focus)
{
ControlPaint.DrawFocusRectangle(e.Graphics, textbounds, e.ForeColor, e.BackColor);
}
}
