public virtual SizeF MeasureItem(IListControl parent, Graphics g, ImageComboItem item)
{
TextFormatFlags flags = GetFlags(parent, item.Text);
SizeF sizeF1 = TextRenderer.MeasureText(g, item.Text, parent.Font, parent.ClientSize, flags);
SizeF sizeF2 = item.Image != null ? item.Image.Size : SizeF.Empty;
if (sizeF1.Height < (double)parent.DefaultItemHeight)
{
sizeF1.Height = parent.DefaultItemHeight;
}
return(new SizeF(Math.Max(sizeF1.Width, sizeF2.Width),
Math.Max(Math.Max(sizeF1.Height, sizeF2.Height), parent.DefaultItemHeight)));
}
public ImageComboItem FindItemByTag(object tag, int startIndex)
{
ImageComboItem imageComboItem = null;
for (int index = startIndex; index < Items.Count; ++index)
{
if (Items[index] is ImageComboItem && ((ImageComboItem)Items[index]).Tag == tag)
{
imageComboItem = Items[index] as ImageComboItem;
break;
}
}
return(imageComboItem);
}
public ImageComboItem FindItemByKey(string key, int startIndex)
{
ImageComboItem imageComboItem = null;
for (int index = startIndex; index < Items.Count; ++index)
{
if (Items[index] is ImageComboItem && ((ImageComboItem)Items[index]).Key == key)
{
imageComboItem = Items[index] as ImageComboItem;
break;
}
}
return(imageComboItem);
}
protected override void OnMeasureItem(MeasureItemEventArgs e)
{
if (e.Index >= 0 && e.Index < Items.Count)
{
IListControlRenderer renderer = GetRenderer();
ImageComboItem imageComboItem = GetItem(e.Index);
if (imageComboItem != null)
{
SizeF sizeF = renderer.MeasureItem(this, e.Graphics, imageComboItem);
e.ItemHeight = ImageList == null
? (int)sizeF.Height + Padding.Vertical
: (int)Math.Max(sizeF.Height, ImageList.ImageSize.Height) + Padding.Vertical;
}
}
base.OnMeasureItem(e);
}
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);
}
public ListControlDrawItemEventArgs(DrawItemEventArgs e, ImageComboItem item)
: base(e.Graphics, e.Font, e.Bounds, e.Index, e.State, e.ForeColor, e.BackColor)
{
Item = item;
State = e.State;
}
protected virtual Image GetItemImage(ImageComboItem item)
{
return(item.GetImage(ImageList));
}