public virtual void DrawItemImage(IListControl parent, ListControlDrawItemEventArgs e)
{
if (e.Image == null)
{
return;
}
Size size = e.Image.Size;
e.Graphics.DrawImage(e.Image, e.Bounds.Left + e.Offset, e.Bounds.Top + (e.Bounds.Height - size.Height) / 2,
size.Width, size.Height);
e.Offset += size.Width + parent.Padding.Left;
}
public virtual void DrawItemBackground(IListControl parent, ListControlDrawItemEventArgs e)
{
using (
Brush brush =
new SolidBrush(!EnumExtensions.HasFlag(e.State, DrawItemState.HotLight) ||
EnumExtensions.HasFlag(e.State, DrawItemState.Selected) || !AllowHotTrack
? (!parent.Enabled || EnumExtensions.HasFlag(e.State, DrawItemState.Selected)
? (!parent.Enabled ||
!parent.IsDroppedDown && parent.HideSelection &&
(!EnumExtensions.HasFlag(e.State, DrawItemState.Focus) && parent.FullRowSelect)
? SystemColors.Control
: parent.HighlightBackColor)
: parent.BackColor)
: parent.HotTrackColor))
e.Graphics.FillRectangle(brush, e.Bounds);
}
public virtual void DrawItemText(IListControl parent, ListControlDrawItemEventArgs e)
{
int num = Math.Max(2, parent.Padding.Right);
int width = e.Bounds.Width - (e.Offset + num);
TextFormatFlags flags = GetFlags(parent, e.Item.Text);
var rectangle = new Rectangle(e.Bounds.X + e.Offset, e.Bounds.Y,
TextRenderer.MeasureText(e.Graphics, e.Item.Text, e.Font, new Size(width, e.Bounds.Height)).Width + num,
e.Bounds.Height);
if (rectangle.Width > width)
{
rectangle.Width = width;
}
Color foreColor;
if (EnumExtensions.HasFlag(e.State, DrawItemState.Selected))
{
Color color;
if (!parent.IsDroppedDown && parent.HideSelection &&
!EnumExtensions.HasFlag(e.State, DrawItemState.Focus))
{
color = SystemColors.Control;
foreColor = parent.ForeColor;
}
else
{
color = parent.HighlightBackColor;
foreColor = parent.HighlightForeColor;
}
if (!parent.FullRowSelect)
{
using (Brush brush = new SolidBrush(color))
e.Graphics.FillRectangle(brush, rectangle);
}
}
else
{
foreColor = parent.Enabled ? parent.ForeColor : SystemColors.GrayText;
}
TextRenderer.DrawText(e.Graphics, e.Item.Text, e.Font, rectangle, foreColor, flags);
if (!EnumExtensions.HasFlag(e.State, DrawItemState.Focus) ||
EnumExtensions.HasFlag(e.State, DrawItemState.NoFocusRect))
{
return;
}
ControlPaint.DrawFocusRectangle(e.Graphics, parent.FullRowSelect ? e.Bounds : rectangle);
}
protected override void OnDrawItem(DrawItemEventArgs e)
{
IListControlRenderer renderer = GetRenderer();
ImageComboItem imageComboItem = e.Index >= 0
? (Items[e.Index] is ImageComboItem
? (ImageComboItem)Items[e.Index]
: new ImageComboItem(Items[e.Index].ToString()))
: new ImageComboItem(Text);
var e1 = new ListControlDrawItemEventArgs(e, imageComboItem)
{
Image = GetItemImage(imageComboItem),
Offset = Padding.Left
};
renderer.DrawItemBackground(this, e1);
renderer.DrawItemImage(this, e1);
renderer.DrawItemText(this, e1);
}
protected override void OnDrawItem(DrawItemEventArgs e)
{
IListControlRenderer renderer = GetRenderer();
ImageComboItem imageComboItem = GetItem(e.Index);
var e1 = new ListControlDrawItemEventArgs(e, imageComboItem)
{
Image = GetItemImage(imageComboItem),
Offset = Padding.Left
};
if (HoverIndex == e.Index)
{
e1.State |= DrawItemState.HotLight;
}
renderer.DrawItemBackground(this, e1);
renderer.DrawItemImage(this, e1);
renderer.DrawItemText(this, e1);
}
