/// <summary>
/// Gets the closest palette color of specified color.
/// </summary>
/// <param name="color">An <see cref="T:Dt.Xls.IExcelColor" /> instance used to locate the palette color.</param>
/// <returns>The closest palette color</returns>
public ExcelPaletteColor GetPaletteColor(IExcelColor color)
{
if (color.ColorType == ExcelColorType.Indexed)
{
return((ExcelPaletteColor)color.Value);
}
if (color.ColorType != ExcelColorType.Theme)
{
return(this.GetCloestColorIndex(ColorExtension.FromArgb(color.Value)));
}
GcColor systemColor = new GcColor();
if (this.Theme == null)
{
int num = (int)color.Value;
if ((num < 0) || (num > 11))
{
return(ExcelPaletteColor.SystemWindowBackgroundColor);
}
switch (color.Value)
{
case 0:
systemColor = GcSystemColors.GetSystemColor(GcSystemColorIndex.Window);
break;
case 1:
systemColor = GcSystemColors.GetSystemColor(GcSystemColorIndex.WindowText);
break;
case 2:
systemColor = ColorExtension.FromArgb(0xeeece1);
break;
case 3:
systemColor = ColorExtension.FromArgb(0x1f497d);
break;
case 4:
systemColor = ColorExtension.FromArgb(0x4f81bd);
break;
case 5:
systemColor = ColorExtension.FromArgb(0xc0504d);
break;
case 6:
systemColor = ColorExtension.FromArgb(0x9bbb59);
break;
case 7:
systemColor = ColorExtension.FromArgb(0x8064a2);
break;
case 8:
systemColor = ColorExtension.FromArgb(0x4bacc6);
break;
case 9:
systemColor = ColorExtension.FromArgb(0xf79646);
break;
case 10:
systemColor = ColorExtension.FromArgb(0xff);
break;
case 11:
systemColor = ColorExtension.FromArgb(0x800080);
break;
}
}
else
{
int num2 = (int)color.Value;
if ((num2 < 0) || (num2 > 11))
{
return(ExcelPaletteColor.SystemWindowBackgroundColor);
}
systemColor = this.GetThemeColor((ColorSchemeIndex)num2);
}
return(this.GetCloestColorIndex(systemColor));
}