/// <summary>
/// Draws the far scroll button.
/// </summary>
/// <param name="g">The graphics to draw on.</param>
/// <param name="param">The parameters required to draw the button.</param>
public override void DrawFarScrollButton(Graphics g, DrawButtonParams param)
{
if ((param.State & ItemState.Disabled) != ItemState.Inactive)
{
var backColor = GetScrollButtonBackColor(param);
using (var brush = new SolidBrush(backColor))
{
g.FillRectangle(brush, param.Bounds);
}
}
else
{
var backColor = GetScrollButtonBackColor(param);
using (var brush = new SolidBrush(backColor))
{
g.FillRectangle(brush, param.Bounds);
}
using (var img = InvertBitmap(Parent.IsHorizontal ? Parent.RightArrowImage : Parent.DownArrowImage))
{
var rec = new Rectangle(Point.Empty, img.Size).GetCenteredInside(param.Bounds);
g.DrawImage(img, rec);
}
}
}
/// <summary>
/// Draws the far scroll button.
/// </summary>
/// <param name="g">The graphics to draw on.</param>
/// <param name="param">The parameters required to draw the button.</param>
public virtual void DrawFarScrollButton(Graphics g, DrawButtonParams param)
{
var backColor = GetScrollButtonBackColor(param);
using (var brush = new SolidBrush(backColor))
{
g.FillRectangle(brush, param.Bounds);
}
Image img = Parent.IsHorizontal ? Parent.RightArrowImage : Parent.DownArrowImage;
var rec = new Rectangle(Point.Empty, img.Size).GetCenteredInside(param.Bounds);
if ((param.State & ItemState.Disabled) != ItemState.Inactive)
{
ControlPaint.DrawImageDisabled(g, img, rec.X, rec.Y, backColor);
}
else
{
g.DrawImage(img, rec);
}
if (Parent.BorderStyle != BorderStyle.None)
{
using (Pen pen = new Pen(BorderColor))
{
if ((Parent.TabLocation & TabLocation.Top) != TabLocation.None)
{
g.DrawLine(pen, param.Bounds.Left, param.Bounds.Bottom - 1, param.Bounds.Right - 1, param.Bounds.Bottom - 1);
}
else if ((Parent.TabLocation & TabLocation.Bottom) != TabLocation.None)
{
g.DrawLine(pen, param.Bounds.Left, param.Bounds.Top, param.Bounds.Right - 1, param.Bounds.Top);
}
else if ((Parent.TabLocation & TabLocation.Left) != TabLocation.None)
{
g.DrawLine(pen, param.Bounds.Right - 1, param.Bounds.Top, param.Bounds.Right - 1, param.Bounds.Bottom - 1);
}
else
{
g.DrawLine(pen, param.Bounds.Left, param.Bounds.Top, param.Bounds.Left, param.Bounds.Bottom - 1);
}
}
}
}
/// <summary>
/// Returns scroll button backcolor for the given state.
/// </summary>
/// <param name="param">The state of the button.</param>
protected Color GetScrollButtonBackColor(DrawButtonParams param)
{
if ((param.State & ItemState.Disabled) != ItemState.Inactive)
{
return(InactiveButtonBackColor);
}
else if ((param.State & ItemState.Pressed) != ItemState.Inactive)
{
return(PressedButtonBackColor);
}
else if ((param.State & ItemState.Hot) != ItemState.Inactive)
{
return(HotButtonBackColor);
}
else
{
return(InactiveButtonBackColor);
}
}
