/* ====================================================================
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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 System.Drawing;
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using System.Configuration;
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using HH.WMS.Utils.NPOI.Util.Collections;
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/**
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* Allows the user to lookup the font metrics for a particular font without
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* actually having the font on the system. The font details are Loaded
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* as a resource from the POI jar file (or classpath) and should be contained
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* in path "/font_metrics.properties". The font widths are for a 10 point
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* version of the font. Use a multiplier for other sizes.
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*
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* @author Glen Stampoultzis (glens at apache.org)
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*/
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class StaticFontMetrics
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{
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/** The font metrics property file we're using */
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private static Properties fontMetricsProps;
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/** Our cache of font details we've alReady looked up */
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private static Hashtable fontDetailsMap = new Hashtable();
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/**
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* Retrieves the fake font details for a given font.
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* @param font the font to lookup.
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* @return the fake font.
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*/
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public static FontDetails GetFontDetails(Font font)
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{
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// If we haven't alReady identified out font metrics file,
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// figure out which one to use and Load it
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if (fontMetricsProps == null)
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{
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Stream metricsIn = null;
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try
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{
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fontMetricsProps = new Properties();
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// Check to see if the font metric file was specified
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// as a system property
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String propFileName = null;
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try
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{
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propFileName = ConfigurationManager.AppSettings["font.metrics.filename"];
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}
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catch(Exception) { }
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if (propFileName != null)
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{
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if (!File.Exists(propFileName))
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throw new FileNotFoundException("font_metrics.properties not found at path " + Path.GetFullPath(propFileName));
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metricsIn = new MemoryStream(Resource1.font_metrics);
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}
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else
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{
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// Use the built-in font metrics file off the classpath
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metricsIn = new MemoryStream(Resource1.font_metrics);
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if (metricsIn == null)
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throw new FileNotFoundException("font_metrics.properties not found in classpath");
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}
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fontMetricsProps.Load(metricsIn);
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}
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catch (IOException e)
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{
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throw new Exception("Could not Load font metrics: " + e.Message);
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}
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finally
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{
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if (metricsIn != null)
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{
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try
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{
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metricsIn.Close();
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}
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catch (IOException)
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{
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}
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}
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}
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}
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// Grab the base name of the font they've asked about
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String fontName = font.FontFamily.Name;
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// Some fonts support plain/bold/italic/bolditalic variants
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// Others have different font instances for bold etc
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// (eg font.dialog.plain.* vs font.Californian FB Bold.*)
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String fontStyle = "";
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//if(font.IsPlain()) fontStyle += "plain";
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if (font.Bold) fontStyle += "bold";
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if (font.Italic) fontStyle += "italic";
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// Do we have a definition for this font with just the name?
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// If not, Check with the font style Added
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if (fontMetricsProps[FontDetails.BuildFontHeightProperty(fontName)] == null &&
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fontMetricsProps[FontDetails.BuildFontHeightProperty(fontName + "." + fontStyle)] != null)
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{
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// Need to Add on the style to the font name
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fontName += "." + fontStyle;
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}
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// Get the details on this font
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if (fontDetailsMap[fontName] == null)
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{
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FontDetails fontDetails = FontDetails.Create(fontName, fontMetricsProps);
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fontDetailsMap[fontName]= fontDetails;
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return fontDetails;
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}
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else
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{
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return (FontDetails)fontDetailsMap[fontName];
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}
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}
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}
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}
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