private static void CreateColor()
{
Color c = SystemColors.Control;
c = Color.FromArgb((c.R + 255) / 2, (c.G + 255) / 2, (c.B + 255) / 2); //白との中間をとる
_selectedColors = new DrawUtil.RoundRectColors();
_selectedColors.border_color = DrawUtil.ToCOLORREF(SystemColors.ControlDarkDark);
_selectedColors.inner_color = DrawUtil.ToCOLORREF(c);
_selectedColors.outer_color = DrawUtil.ToCOLORREF(SystemColors.Control);
_selectedColors.lightlight_color = DrawUtil.MergeColor(_selectedColors.border_color, _selectedColors.outer_color);
_selectedColors.light_color = DrawUtil.MergeColor(_selectedColors.lightlight_color, _selectedColors.border_color);
_hoverColors = new DrawUtil.RoundRectColors();
_hoverColors.border_color = DrawUtil.ToCOLORREF(DrawUtil.DarkColor(Color.Orange));
_hoverColors.inner_color = DrawUtil.ToCOLORREF(SystemColors.Control);
_hoverColors.outer_color = DrawUtil.ToCOLORREF(SystemColors.Control);
_hoverColors.lightlight_color = DrawUtil.MergeColor(_hoverColors.border_color, _hoverColors.outer_color);
_hoverColors.light_color = DrawUtil.MergeColor(_hoverColors.lightlight_color, _hoverColors.border_color);
}
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
if (_selectedColors == null)
{
CreateColor();
}
//border
if (_selected)
{
DrawUtil.DrawRoundRect(g, 0, 0, this.Width - 1, this.Height - 1, _selectedColors);
}
else if (_mouseEnter)
{
DrawUtil.DrawRoundRect(g, 0, 0, this.Width - 1, this.Height - 1, _hoverColors);
}
DrawButtonState(g);
}