/// <summary>
/// 获取RGB对应NPOI颜色值
/// </summary>
/// <param name="workbook">当前wb</param>
/// <param name="R"></param>
/// <param name="G"></param>
/// <param name="B"></param>
/// <returns></returns>
public static short GetXLColour(this HSSFWorkbook workbook, int R, int G, int B)
{
short s = 0;
HSSFPalette XlPalette = workbook.GetCustomPalette();
HSSFColor XlColour = XlPalette.FindColor((byte)R, (byte)G, (byte)B);
if (XlColour == null)
{
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 255)
{
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64)
{
NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE = 64;
NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE += 1;
XlColour = XlPalette.AddColor((byte)R, (byte)G, (byte)B);
}
else
{
XlColour = XlPalette.FindSimilarColor((byte)R, (byte)G, (byte)B);
}
s = XlColour.GetIndex();
}
}
else
{
s = XlColour.GetIndex();
}
return(s);
}
/// <summary>
/// create the colours for the COBie sheet
/// </summary>
/// <param name="colourName"></param>
/// <param name="red"></param>
/// <param name="green"></param>
/// <param name="blue"></param>
private void CreateColours(string colourName, byte red, byte green, byte blue)
{
IColor colour = null;
if (IsXlsx)
{
byte[] rgb = new byte[3] {
red, green, blue
};
colour = new XSSFColor(rgb) as IColor;
}
else
{
HSSFPalette palette = ((HSSFWorkbook)ExcelWorkbook).GetCustomPalette();
colour = palette.FindSimilarColor(red, green, blue);
if (colour == null)
{
// First 64 are system colours
//srl this code does not work with the latest version of NPOI
//if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64 )
//{
// NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE = 64;
//}
//NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE++;
colour = palette.AddColor(red, green, blue);
}
}
_colours.Add(colourName, colour);
}
private short GetXLColour(HSSFWorkbook workbook, System.Drawing.Color SystemColour)
{
short s = 0;
HSSFPalette XlPalette = workbook.GetCustomPalette();
HSSFColor XlColour = XlPalette.FindColor(SystemColour.R, SystemColour.G, SystemColour.B);
if (XlColour == null)
{
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 255)
{
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64)
{
NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE = 64; NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE += 1;
XlColour = XlPalette.AddColor(SystemColour.R, SystemColour.G, SystemColour.B);
}
else
{
XlColour = XlPalette.FindSimilarColor(SystemColour.R, SystemColour.G, SystemColour.B);
}
s = XlColour.GetIndex();
}
}
else
{
s = XlColour.GetIndex();
}
return(s);
}
/// <summary>
/// 设置单元格样式
/// </summary>
/// <param name="rownum"></param>
/// <param name="isFill">是否填充背景色</param>
/// <returns></returns>
//private HSSFCellStyle SetStyle(int rownum,bool isFill)
//{
// if (isFill)
// {
// if (rownum%2 == 0)
// {
// cellstyle.FillForegroundColor = HSSFColor.LIGHT_ORANGE.index;
// }
// else
// cellstyle.FillForegroundColor = HSSFColor.SKY_BLUE.index;
// cellstyle.FillPattern = FillPatternType.SOLID_FOREGROUND;
// //cellstyle.FillBackgroundColor = HSSFColor.RED.index;
// }
// return cellstyle;
//}
/// <summary>
/// 获取颜色
/// </summary>
/// <param name="sysColor"></param>
/// <returns></returns>
private short GetColor(System.Drawing.Color sysColor)
{
short s = 0;
HSSFPalette xlPalette = WorkBook.GetCustomPalette();
HSSFColor xlColor = xlPalette.FindColor(sysColor.R, sysColor.G, sysColor.B);
if (xlColor == null)
{
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE <= 255)
{
if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64)
{
NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE = 64;
NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE += 1;
xlColor = xlPalette.AddColor(sysColor.R, sysColor.G, sysColor.B);
}
else
{
xlColor = xlPalette.FindSimilarColor(sysColor.R, sysColor.G, sysColor.B);
}
s = xlColor.GetIndex();
}
}
else
{
s = xlColor.GetIndex();
}
return(s);
}
private short GetXLColour(System.Drawing.Color SystemColour)
{
HSSFPalette XlPalette = document.GetCustomPalette();
NPOI.HSSF.Util.HSSFColor XlColour = XlPalette.FindColor(SystemColour.R, SystemColour.G, SystemColour.B);
XlColour = XlColour ?? XlPalette.AddColor(SystemColour.R, SystemColour.G, SystemColour.B);
return(XlColour.Indexed);
}
public void TestAddColor()
{
try
{
HSSFColor hssfColor = hssfPalette.AddColor((byte)10, (byte)10, (byte)10);
Assert.Fail();
}
catch (Exception)
{
// Failing because by default there are no colours left in the palette.
}
}
private void CreateColours(string colourName, byte red, byte green, byte blue)
{
HSSFPalette palette = XlsWorkbook.GetCustomPalette();
HSSFColor colour = palette.FindSimilarColor(red, green, blue);
if (colour == null)
{
// First 64 are system colours
//srl this code does not work with the latest version of NPOI
//if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64 )
//{
// NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE = 64;
//}
//NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE++;
colour = palette.AddColor(red, green, blue);
}
_colours.Add(colourName, colour);
}
private HSSFColor GetColor(HSSFWorkbook workbook, byte red, byte green, byte blue)
{
HSSFPalette palette = workbook.GetCustomPalette();
HSSFColor colour = palette.FindSimilarColor(red, green, blue);
if (colour == null)
{
// NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE is now const...
//// First 64 are system colours
//if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64)
//{
// NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE = 64;
//}
//NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE++;
colour = palette.AddColor(red, green, blue);
}
return(colour);
}
