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|
| /* ====================================================================
| Licensed to the Apache Software Foundation (ASF) Under one or more
| contributor license agreements. See the NOTICE file distributed with
| this work for Additional information regarding copyright ownership.
| The ASF licenses this file to You Under the Apache License, Version 2.0
| (the "License"); you may not use this file except in compliance with
| the License. You may obtain a copy of the License at
|
| http://www.apache.org/licenses/LICENSE-2.0
|
| Unless required by applicable law or agreed to in writing, software
| distributed Under the License is distributed on an "AS Is" BASIS,
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| See the License for the specific language governing permissions and
| limitations Under the License.
| ==================================================================== */
|
|
| namespace HH.WMS.Utils.NPOI.HSSF.Record
| {
|
| using HH.WMS.Utils.NPOI.Util;
| using System;
| using System.Text;
| using System.IO;
| using System.Collections.Generic;
|
| /**
| * PaletteRecord - Supports custom palettes.
| * @author Andrew C. Oliver (acoliver at apache dot org)
| * @author Brian Sanders (bsanders at risklabs dot com) - custom palette editing
| * @version 2.0-pre
| */
|
| public class PaletteRecord
| : StandardRecord
| {
| public const short sid = 0x92;
| /** The standard size of an XLS palette */
| public static byte STANDARD_PALETTE_SIZE = (byte)56;
| /** The byte index of the first color */
| public static short FIRST_COLOR_INDEX = (short)0x8;
|
|
| private List<PColor> field_2_colors;
|
| public PaletteRecord()
| {
| PColor[] defaultPalette = CreateDefaultPalette();
| field_2_colors = new List<PColor>(defaultPalette.Length);
| for (int i = 0; i < defaultPalette.Length; i++)
| {
| field_2_colors.Add(defaultPalette[i]);
| }
| }
|
| /**
| * Constructs a PaletteRecord record and Sets its fields appropriately.
| * @param in the RecordInputstream to Read the record from
| */
|
| public PaletteRecord(RecordInputStream in1)
| {
| short field_1_numcolors = in1.ReadShort();
| field_2_colors = new List<PColor>(field_1_numcolors);
| for (int k = 0; k < field_1_numcolors; k++)
| {
| field_2_colors.Add(new PColor(in1));
| }
| }
|
| public override String ToString()
| {
| StringBuilder buffer = new StringBuilder();
|
| buffer.Append("[PALETTE]\n");
| buffer.Append(" numcolors = ").Append(field_2_colors.Count)
| .Append('\n');
| for (int k = 0; k < field_2_colors.Count; k++)
| {
| PColor c = (PColor)field_2_colors[k];
| buffer.Append("* colornum = ").Append(k)
| .Append('\n');
| buffer.Append(c.ToString());
| buffer.Append("/*colornum = ").Append(k)
| .Append('\n');
| }
| buffer.Append("[/PALETTE]\n");
| return buffer.ToString();
| }
|
| public override void Serialize(ILittleEndianOutput out1)
| {
| out1.WriteShort(field_2_colors.Count);
| for (int i = 0; i < field_2_colors.Count; i++)
| {
| field_2_colors[i].Serialize(out1);
| }
| }
|
| protected override int DataSize
| {
| get
| {
| return 2 + field_2_colors.Count * PColor.ENCODED_SIZE;
| }
| }
|
| public override short Sid
| {
| get { return sid; }
| }
|
| /**
| * Returns the color value at a given index
| *
| * @return the RGB triplet for the color, or null if the specified index
| * does not exist
| */
| public byte[] GetColor(short byteIndex)
| {
| int i = byteIndex - FIRST_COLOR_INDEX;
| if (i < 0 || i >= field_2_colors.Count)
| {
| return null;
| }
| PColor color = (PColor)field_2_colors[i];
| return new byte[] { color._red, color._green, color._blue };
| }
|
| /**
| * Sets the color value at a given index
| *
| * If the given index Is greater than the current last color index,
| * then black Is Inserted at every index required to make the palette continuous.
| *
| * @param byteIndex the index to Set; if this index Is less than 0x8 or greater than
| * 0x40, then no modification Is made
| */
| public void SetColor(short byteIndex, byte red, byte green, byte blue)
| {
| int i = byteIndex - FIRST_COLOR_INDEX;
| if (i < 0 || i >= STANDARD_PALETTE_SIZE)
| {
| return;
| }
| while (field_2_colors.Count <= i)
| {
| field_2_colors.Add(new PColor((byte)0, (byte)0, (byte)0));
| }
| PColor custColor = new PColor(red, green, blue);
| field_2_colors[i] = custColor;
| }
|
| /**
| * Creates the default palette as PaletteRecord binary data
| *
| * @see org.apache.poi.hssf.model.Workbook#createPalette
| */
| private static PColor[] CreateDefaultPalette()
| {
| return new PColor[] {
| pc(0, 0, 0),
| pc(255, 255, 255),
| pc(255, 0, 0),
| pc(0, 255, 0),
| pc(0, 0, 255),
| pc(255, 255, 0),
| pc(255, 0, 255),
| pc(0, 255, 255),
| pc(128, 0, 0),
| pc(0, 128, 0),
| pc(0, 0, 128),
| pc(128, 128, 0),
| pc(128, 0, 128),
| pc(0, 128, 128),
| pc(192, 192, 192),
| pc(128, 128, 128),
| pc(153, 153, 255),
| pc(153, 51, 102),
| pc(255, 255, 204),
| pc(204, 255, 255),
| pc(102, 0, 102),
| pc(255, 128, 128),
| pc(0, 102, 204),
| pc(204, 204, 255),
| pc(0, 0, 128),
| pc(255, 0, 255),
| pc(255, 255, 0),
| pc(0, 255, 255),
| pc(128, 0, 128),
| pc(128, 0, 0),
| pc(0, 128, 128),
| pc(0, 0, 255),
| pc(0, 204, 255),
| pc(204, 255, 255),
| pc(204, 255, 204),
| pc(255, 255, 153),
| pc(153, 204, 255),
| pc(255, 153, 204),
| pc(204, 153, 255),
| pc(255, 204, 153),
| pc(51, 102, 255),
| pc(51, 204, 204),
| pc(153, 204, 0),
| pc(255, 204, 0),
| pc(255, 153, 0),
| pc(255, 102, 0),
| pc(102, 102, 153),
| pc(150, 150, 150),
| pc(0, 51, 102),
| pc(51, 153, 102),
| pc(0, 51, 0),
| pc(51, 51, 0),
| pc(153, 51, 0),
| pc(153, 51, 102),
| pc(51, 51, 153),
| pc(51, 51, 51),
| };
| }
|
| private static PColor pc(int r, int g, int b)
| {
| return new PColor(r, g, b);
| }
| }
|
| /**
| * PColor - element in the list of colors - consider it a "struct"
| */
| class PColor
| {
| public static short ENCODED_SIZE = 4;
| public byte _red;
| public byte _green;
| public byte _blue;
| public PColor(int red, int green, int blue)
| {
| this._red = (byte)red;
| this._green = (byte)green;
| this._blue = (byte)blue;
| }
|
| public PColor(RecordInputStream in1) {
| _red = (byte)in1.ReadByte();
| _green = (byte)in1.ReadByte();
| _blue = (byte)in1.ReadByte();
| in1.ReadByte(); // unused
| }
|
| public void Serialize(ILittleEndianOutput out1) {
| out1.WriteByte(_red);
| out1.WriteByte(_green);
| out1.WriteByte(_blue);
| out1.WriteByte(0);
| }
|
| public override String ToString()
| {
| StringBuilder buffer = new StringBuilder();
| buffer.Append(" red = ").Append(_red & 0xff).Append('\n');
| buffer.Append(" green = ").Append(_green & 0xff).Append('\n');
| buffer.Append(" blue = ").Append(_blue & 0xff).Append('\n');
| return buffer.ToString();
| }
| }
| }
|
|
