public ThumbViewPaintEventArgs(ThumbView view, Graphics graphics, ThumbItem item, Font font)
{
View = view;
Graphics = graphics;
Item = item;
Font = font;
}
void PaintItemCloseButton(PaintEventArgs e, ThumbItem item)
{
if (item != HoverObject.Item)
{
return;
}
Image image = Properties.Resources.taskbar_close_button;
UIStatusImage img = UIStatusImage.FromVertical(image,
new UIControlStatus[] {
UIControlStatus.Normal,
UIControlStatus.Hover,
UIControlStatus.Selected,
UIControlStatus.InactivedHover,
UIControlStatus.Inactived,
UIControlStatus.Disabled
});
var rect = GetItemCloseButtonRectangle(item);
var bs = UIControlStatus.Normal;
if (PressedObject.Item == item && PressedObject.IsCloseButton)
{
bs = UIControlStatus.Selected;
}
else if (HoverObject.Item == item && HoverObject.IsCloseButton)
{
bs = UIControlStatus.Hover;
}
img.Draw(e.Graphics, bs, rect);
}
public HitResult(int x, int y, ThumbItem item)
{
X = x;
Y = y;
Item = item;
IsCloseButton = false;
}
void PaintItem(PaintEventArgs e, ThumbItem item)
{
ThumbViewPaintEventArgs args = new ThumbViewPaintEventArgs(this, e.Graphics, item, Font);
if (!item.NotifyPaint(args))
{
PaintCellBackground(args, item);
Color foreColor;
if (item == HoverObject.Item)
{
foreColor = ActiveCellForeColor;
}
else
{
foreColor = CellForeColor;
}
if (!string.IsNullOrEmpty(item.Text))
{
Font font = new Font(UITheme.Default.DefaultFont.FontFamily, 16);
e.Graphics.DrawString(item.Text, font, new SolidBrush(foreColor), item.Bounds, PaintHelper.SFCenter);
}
}
// close button
if (item.CanClose)
{
PaintItemCloseButton(e, item);
}
}
void Invalidate(ThumbItem item)
{
if (item != null)
{
Invalidate(item.Bounds);
}
}
protected virtual void OnItemClick(ThumbItem item)
{
item.NotifyClick();
if (ItemClick != null)
{
ItemClick(this, new ThumbViewItemEventArgs(item));
}
}
Rectangle GetItemCloseButtonRectangle(ThumbItem item)
{
if (item == null)
{
throw new ArgumentNullException();
}
return(new Rectangle(item.Right - 16, item.Top, 16, 16));
}
internal void PaintCellBackground(ThumbViewPaintEventArgs e, ThumbItem item)
{
Color backColor;
if (item == HoverObject.Item)
{
backColor = ActiveCellBackColor;
}
else
{
backColor = CellBackColor;
}
if (!backColor.IsEmpty)
{
e.Graphics.FillRectangle(new SolidBrush(backColor), item.Bounds);
}
}
void OnItemClose(ThumbItem item)
{
if (item == null)
{
throw new ArgumentNullException();
}
//
if (Items.Contains(item))
{
var e = new ThumbViewItemCancelEventArgs(item);
OnItemClosing(e);
if (e.Cancel)
{
return;
}
Items.Remove(item);
var e2 = new ThumbViewItemEventArgs(item);
OnItemClosed(e2);
}
}
public ThumbViewItemEventArgs(ThumbItem item)
{
Item = item;
}