/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) Under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for Additional information regarding copyright ownership.
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The ASF licenses this file to You Under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed Under the License is distributed on an "AS Is" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations Under the License.
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==================================================================== */
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namespace HH.WMS.Utils.NPOI.HSSF.UserModel
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{
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using System;
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using System.Collections;
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using System.IO;
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using HH.WMS.Utils.NPOI.Util;
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using System.Text;
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using HH.WMS.Utils.NPOI.Util.Collections;
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using System.Globalization;
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/// <summary>
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/// Stores width and height details about a font.
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/// @author Glen Stampoultzis (glens at apache.org)
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/// </summary>
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public class FontDetails
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{
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private String fontName;
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private int height;
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private Hashtable charWidths = new Hashtable();
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/// <summary>
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/// Construct the font details with the given name and height.
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/// </summary>
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/// <param name="fontName">The font name.</param>
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/// <param name="height">The height of the font.</param>
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public FontDetails(String fontName, int height)
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{
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this.fontName = fontName;
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this.height = height;
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}
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/// <summary>
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/// Gets the name of the font.
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/// </summary>
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/// <returns></returns>
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public String GetFontName()
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{
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return fontName;
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}
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/// <summary>
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/// Gets the height.
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/// </summary>
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/// <returns></returns>
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public int GetHeight()
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{
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return height;
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}
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/// <summary>
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/// Adds the char.
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/// </summary>
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/// <param name="c">The c.</param>
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/// <param name="width">The width.</param>
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public void AddChar(char c, int width)
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{
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charWidths[c] = width;
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}
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/// <summary>
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/// Retrieves the width of the specified Char. If the metrics for
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/// a particular Char are not available it defaults to returning the
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/// width for the 'W' Char.
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/// </summary>
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/// <param name="c">The character.</param>
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/// <returns></returns>
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public int GetCharWidth(char c)
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{
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object widthInteger = charWidths[c];
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if (widthInteger == null && c != 'W')
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return GetCharWidth('W');
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else
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return (int)widthInteger;
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}
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/// <summary>
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/// Adds the chars.
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/// </summary>
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/// <param name="Chars">The chars.</param>
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/// <param name="widths">The widths.</param>
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public void AddChars(char[] Chars, int[] widths)
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{
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for (int i = 0; i < Chars.Length; i++)
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{
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if (Chars[i] != ' ')
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{
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charWidths[Chars[i]] = widths[i];
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}
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}
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}
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/// <summary>
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/// Builds the font height property.
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/// </summary>
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/// <param name="fontName">Name of the font.</param>
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/// <returns></returns>
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public static String BuildFontHeightProperty(String fontName)
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{
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return "font." + fontName + ".height";
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}
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/// <summary>
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/// Builds the font widths property.
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/// </summary>
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/// <param name="fontName">Name of the font.</param>
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/// <returns></returns>
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public static String BuildFontWidthsProperty(String fontName)
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{
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return "font." + fontName + ".widths";
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}
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/// <summary>
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/// Builds the font chars property.
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/// </summary>
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/// <param name="fontName">Name of the font.</param>
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/// <returns></returns>
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public static String BuildFontCharsProperty(String fontName)
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{
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return "font." + fontName + ".characters";
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}
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/// <summary>
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/// Create an instance of
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/// <c>FontDetails</c>
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/// by loading them from the
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/// provided property object.
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/// </summary>
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/// <param name="fontName">the font name.</param>
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/// <param name="fontMetricsProps">the property object holding the details of this
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/// particular font.</param>
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/// <returns>a new FontDetails instance.</returns>
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public static FontDetails Create(String fontName, Properties fontMetricsProps)
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{
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String heightStr = fontMetricsProps[BuildFontHeightProperty(fontName)];
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String widthsStr = fontMetricsProps[BuildFontWidthsProperty(fontName)];
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String CharsStr = fontMetricsProps[BuildFontCharsProperty(fontName)];
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// Ensure that this Is a font we know about
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if (heightStr == null || widthsStr == null || CharsStr == null)
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{
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// We don't know all we need to about this font
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// Since we don't know its sizes, we can't work with it
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throw new ArgumentException("The supplied FontMetrics doesn't know about the font '" + fontName + "', so we can't use it. Please Add it to your font metrics file (see StaticFontMetrics.GetFontDetails");
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}
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int height = int.Parse(heightStr, CultureInfo.InvariantCulture);
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FontDetails d = new FontDetails(fontName, height);
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String[] CharsStrArray = Split(CharsStr, ",", -1);
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String[] widthsStrArray = Split(widthsStr, ",", -1);
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if (CharsStrArray.Length != widthsStrArray.Length)
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throw new Exception("Number of Chars does not number of widths for font " + fontName);
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for (int i = 0; i < widthsStrArray.Length; i++)
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{
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if (CharsStrArray[i].Trim().Length != 0)
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d.AddChar(CharsStrArray[i].Trim()[0], int.Parse(widthsStrArray[i], CultureInfo.InvariantCulture));
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}
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return d;
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}
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/// <summary>
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/// Gets the width of all Chars in a string.
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/// </summary>
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/// <param name="str">The string to measure.</param>
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/// <returns>The width of the string for a 10 point font.</returns>
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public int GetStringWidth(String str)
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{
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int width = 0;
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for (int i = 0; i < str.Length; i++)
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{
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width += GetCharWidth(str[i]);
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}
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return width;
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}
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/// <summary>
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/// Split the given string into an array of strings using the given
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/// delimiter.
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/// </summary>
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/// <param name="text">The text.</param>
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/// <param name="separator">The separator.</param>
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/// <param name="max">The max.</param>
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/// <returns></returns>
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private static String[] Split(String text, String separator, int max)
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{
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String[] list = text.Split(separator.ToCharArray());
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return list;
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}
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}
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}
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