129 lines
3 KiB
C#
129 lines
3 KiB
C#
// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
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// <version>$Revision: 2313 $</version>
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// </file>
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using System;
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using System.Drawing;
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namespace ICSharpCode.TextEditor.Document
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{
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/// <summary>
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/// This class is used to generate bold, italic and bold/italic fonts out
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/// of a base font.
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/// </summary>
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public class FontContainer
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{
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Font defaultFont;
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Font regularfont, boldfont, italicfont, bolditalicfont;
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/// <value>
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/// The scaled, regular version of the base font
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/// </value>
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public Font RegularFont {
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get {
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return regularfont;
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}
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}
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/// <value>
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/// The scaled, bold version of the base font
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/// </value>
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public Font BoldFont {
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get {
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return boldfont;
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}
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}
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/// <value>
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/// The scaled, italic version of the base font
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/// </value>
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public Font ItalicFont {
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get {
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return italicfont;
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}
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}
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/// <value>
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/// The scaled, bold/italic version of the base font
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/// </value>
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public Font BoldItalicFont {
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get {
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return bolditalicfont;
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}
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}
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static float twipsPerPixelY;
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public static float TwipsPerPixelY {
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get {
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if (twipsPerPixelY == 0) {
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using (Bitmap bmp = new Bitmap(1,1)) {
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using (Graphics g = Graphics.FromImage(bmp)) {
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twipsPerPixelY = 1440 / g.DpiY;
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}
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}
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}
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return twipsPerPixelY;
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}
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}
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/// <value>
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/// The base font
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/// </value>
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public Font DefaultFont {
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get {
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return defaultFont;
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}
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set {
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// 1440 twips is one inch
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int pixelSize = (int)(value.SizeInPoints * 20 / TwipsPerPixelY);
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/*defaultFont = value;
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regularfont = new Font(value.FontFamily, pixelSize * TwipsPerPixelY / 20f, FontStyle.Regular);
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boldfont = new Font(regularfont, FontStyle.Bold);
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italicfont = new Font(regularfont, FontStyle.Italic);
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bolditalicfont = new Font(regularfont, FontStyle.Bold | FontStyle.Italic);*/
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defaultFont = value;
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FontFamily validFontFamily = value.FontFamily;
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foreach (FontFamily ff in FontFamily.Families)
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{
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if (ff.Name == value.FontFamily.Name)
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{
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validFontFamily = ff;
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//находим первый подходящий fontFaFontFamily
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break;
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}
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}
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if (regularfont != null) regularfont.Dispose();
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regularfont = new Font(validFontFamily, pixelSize * TwipsPerPixelY / 20f, FontStyle.Regular);
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if (boldfont != null) boldfont.Dispose();
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boldfont = new Font(regularfont, FontStyle.Bold);
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if (italicfont != null) italicfont.Dispose();
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italicfont = new Font(regularfont, FontStyle.Italic);
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if (bolditalicfont != null) bolditalicfont.Dispose();
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bolditalicfont = new Font(regularfont, FontStyle.Bold | FontStyle.Italic);
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}
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}
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public static Font ParseFont(string font)
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{
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string[] descr = font.Split(new char[]{',', '='});
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return new Font(descr[1], Single.Parse(descr[3]));
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}
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public FontContainer(Font defaultFont)
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{
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this.DefaultFont = defaultFont;
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}
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}
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}
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