// ===========================================================================
// ©2013-2026 WebSupergoo. All rights reserved.
//
// This source code is for use exclusively with the ABCpdf product with
// which it is distributed, under the terms of the license for that
// product. Details can be found at
//
// http://www.websupergoo.com/
//
// This copyright notice must not be deleted and must be reproduced alongside
// any sections of code extracted from this module.
// ===========================================================================
using System;
using System.IO;
using System.Collections.Generic;
using System.Globalization;
namespace WebSupergoo.ABCpdf14.Drawing.Text {
#region BuiltInFontMetrics
internal sealed class BuiltInFontMetrics : FontMetrics {
#region AdobeFromUnicode
internal static readonly int[] AdobeFromUnicode = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, // 0
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, // 10
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, // 20
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, // 30
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, // 40
50, 51, 52, 53, 54, 55, 56, 57, 58, 59, // 50
60, 61, 62, 63, 64, 65, 66, 67, 68, 69, // 60
70, 71, 72, 73, 74, 75, 76, 77, 78, 79, // 70
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, // 80
90, 91, 92, 93, 94, 95, 96, 97, 98, 99, // 90
100, 101, 102, 103, 104, 105, 106, 107, 108, 109, // 100
110, 111, 112, 113, 114, 115, 116, 117, 118, 119, // 110
120, 121, 122, 123, 124, 125, 126, 127, 128, 129, // 120
130, 131, 132, 133, 134, 135, 136, 137, 138, 139, // 130
140, 141, 142, 143, 144, 145, 146, 147, 148, 149, // 140
150, 151, 152, 153, 154, 155, 156, 157, 158, 159, // 150
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, // 160
170, 171, 172, 45, 174, 175, 176, 177, 178, 179, // 170 - 173/-
180, 181, 182, 183, 184, 185, 186, 187, 188, 189, // 180
190, 191, 192, 193, 194, 195, 196, 197, 198, 199, // 190
200, 201, 202, 203, 204, 205, 206, 207, 208, 209, // 200
210, 211, 212, 213, 214, 215, 216, 217, 218, 219, // 210
220, 221, 222, 223, 224, 225, 226, 227, 228, 229, // 220
230, 231, 232, 233, 234, 235, 236, 237, 238, 239, // 230
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, // 240
250, 251, 252, 253, 254, 255, 88, 88, 88, 88, // 250
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 260
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 270
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 280
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 290
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 300
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 310
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 320
88, 88, 88, 88, 88, 88, 88, 88, 140, 156, // 330 - 338/OE, 339/oe
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 340
88, 88, 138, 88, 88, 88, 88, 88, 88, 88, // 350 - 352/S caron
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 360
88, 88, 88, 88, 88, 88, 159, 88, 88, 88, // 370 - 376/Y dieresis
88, 142, 158, 88, 88, 88, 88, 88, 88, 88, // 380 - 381/Z caron, 382/z caron
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 390
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 400
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 410
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 420
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 430
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 440
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 450
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 460
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 470
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 480
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 490
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 500
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 510
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 520
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 530
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 540
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 550
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 560
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 570
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 580
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 590
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 600
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 610
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 620
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 630
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 640
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 650
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 660
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 670
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 680
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 690
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 700
136, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 710 - 710/circumflex
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 720
225, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 730 - 730/breve
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 740
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 750
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 760
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 770
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 780
88, 88, 88, 88, 88, 88, 88, 88, 88, 88, // 790
88 };
#endregion
internal static readonly char[] DelimiterToken = { ' ', '\t' };
internal static readonly char[] DelimiterSemicolon = { ';' };
internal BuiltInFontMetrics(Stream stream) {
using (StreamReader streamReader = new StreamReader(stream)) {
string line = null;
while ((line = streamReader.ReadLine()) != null) {
if (line.StartsWith("Comment"))
continue;
string[] token = line.Split(DelimiterToken, 5);
if (token.Length == 0)
continue;
switch (token[0]) {
case "StartFontMetrics":
FontMetricsVersion = token[1];
break;
case "MetricsSets":
MetricsSets = int.Parse(token[1]);
break;
case "FontName":
FontName = token[1];
break;
case "FullName":
FullName = token[1];
break;
case "FamilyName":
FamilyName = token[1];
break;
case "Weight":
Weight = token[1];
break;
case "FontBBox":
FontBBox_llx = double.Parse(token[1]);
FontBBox_lly = double.Parse(token[2]);
FontBBox_urx = double.Parse(token[3]);
FontBBox_ury = double.Parse(token[4]);
break;
case "Version":
Version = token[1];
break;
case "Notice":
Notice = line.Substring(7);
break;
case "EncodingScheme":
EncodingScheme = token[1];
break;
case "CharacterSet":
CharacterSet = token[1];
break;
case "IsBaseFont":
IsBaseFont = bool.Parse(token[1]);
break;
case "CapHeight":
CapHeight = double.Parse(token[1]);
break;
case "XHeight":
XHeight = double.Parse(token[1]);
break;
case "Ascender":
Ascender = double.Parse(token[1]);
break;
case "Descender":
Descender = double.Parse(token[1]);
break;
case "StdHW":
StdHW = double.Parse(token[1]);
break;
case "StdVW":
StdVW = double.Parse(token[1]);
break;
case "UnderlinePosition":
UnderlinePosition = double.Parse(token[1]);
break;
case "UnderlineThickness":
UnderlineThickness = double.Parse(token[1]);
break;
case "ItalicAngle":
ItalicAngle = double.Parse(token[1]);
break;
case "IsFixedPitch":
IsFixedPitch = bool.Parse(token[1]);
break;
case "StartCharMetrics":
CharMetricsCount = int.Parse(token[1]);
ParseCharMetrics(streamReader);
break;
default:
break;
}
}
}
}
internal override System.Drawing.SizeF MeasureString(string s, double size, TextState state) {
if (s.Length == 0)
return new System.Drawing.SizeF(0, 0);
double width = 0;
foreach (char c in s) {
short ch = (short)c;
CharMetrics cm = GetCharMetrics(ch);
if (cm != null)
width += cm.WidthX;
if (c == ' ')
width += state.WordSpacing;
}
width += (s.Length - 1) * state.CharacterSpacing;
double capHeight = CapHeight;
if (double.IsNaN(capHeight))
capHeight = FontBBox_ury - FontBBox_lly;
return new System.Drawing.SizeF(
(float)(GetSizeFactor(size) * width / 1000),
(float)(GetSizeFactor(size) * CapHeight / 1000));
}
internal CharMetrics GetCharMetrics(int ch) {
if (ch >= CharMetrics.Length) {
if (ch == 8364)
return CharMetrics[128];
else
return null;
}
return CharMetrics[ch];
}
internal override double GetSizeFactor(double size) {
if (FontName == "Symbol" || FontName == "ZapfDingbats") {
CharMetrics cm = GetCharMetrics(74);
return size * 1000 / (cm.BBox_ury - cm.BBox_lly);
}
else {
return size * 1000 / CapHeight;
}
}
internal void ParseCharMetrics(StreamReader reader) {
if (CharMetricsCount > 0) {
CharMetrics = new CharMetrics[BuiltInFontMetrics.AdobeFromUnicode.Length];
string line = null;
while ((line = reader.ReadLine()) != null) {
if (line.StartsWith("EndCharMetrics"))
return;
new BuiltInCharMetrics(line, this);
}
}
CharMetrics[173] = CharMetrics[45];
}
}
#endregion
#region BuiltInCharMetrics
internal class BuiltInCharMetrics : CharMetrics {
internal BuiltInCharMetrics(string line, FontMetrics afm) {
string[] lineToken = line.Split(BuiltInFontMetrics.DelimiterSemicolon, 10);
for (int expr = 0; expr < lineToken.Length; expr++) {
if (lineToken[expr].Length == 0)
continue;
string[] token = lineToken[expr].Trim().Split(BuiltInFontMetrics.DelimiterToken, 5);
switch (token[0]) {
case "C":
CharacterCode = int.Parse(token[1], NumberFormatInfo.InvariantInfo);
break;
case "CH":
CharacterCode = int.Parse(token[1], NumberStyles.HexNumber, NumberFormatInfo.InvariantInfo);
break;
case "WX":
case "W0X":
WidthX = double.Parse(token[1], NumberFormatInfo.InvariantInfo);
break;
case "N":
Name = token[1];
break;
case "B":
BBox_llx = double.Parse(token[1]);
BBox_lly = double.Parse(token[2]);
BBox_urx = double.Parse(token[3]);
BBox_ury = double.Parse(token[4]);
break;
case "L":
if (Ligatures == null)
Ligatures = new List<Ligature>(10);
Ligatures.Add(new Ligature(token[1], token[2]));
break;
default:
break;
}
}
int index = CharacterCode;
if (afm.FontName != "Symbol" && afm.FontName != "ZapfDingbats") {
switch (index) {
case 39: // quoteright
index = 0;
break;
case 96: // quoteleft
index = 0;
break;
case 127:
case 128:
case 129:
case 130:
case 131:
case 132:
case 133:
case 134:
case 135:
case 136:
case 137:
case 138:
case 139:
case 140:
case 141:
case 142:
case 143:
case 144:
case 145:
case 146:
case 147:
case 148:
case 149:
case 150:
case 151:
case 152:
case 153:
case 154:
case 155:
case 156:
case 157:
case 158:
case 159:
case 160:
index = -1;
break;
case 164:
index = 0;
break; // fraction "/"
case 166:
index = 0;
break; // florin
case 168:
index = 164;
break; // currency "¤"
case 169:
index = 39;
break; // quotesingle "'"
case 170:
index = 0;
break; // quotedblleft
case 172:
index = 0;
break; // guilsinglleft
case 173:
index = 0;
break; // guilsinglright
case 174:
index = 0; break; // fi
case 175:
index = 0;
break; // fl
case 176:
index = -1;
break; // does not exist!
case 177:
index = 0;
break; // endash "-"
case 178:
index = 0;
break; // dagger
case 179:
index = 0;
break; // daggerdbl
case 180:
index = 183;
break; // periodcentered
case 183:
index = 0;
break; // bullet
case 184:
index = 0;
break; // quotesinglbase
case 185:
index = 0;
break; // quotedblbase
case 186:
index = 0;
break; // quotedblright
case 188:
index = 0;
break; // ellipsis
case 189:
index = 0;
break; // perthousand
case 190:
case 192:
index = -1;
break;
case 193:
index = 96;
break; // grave "`"
case 194:
index = 180;
break; // acute "´"
case 195:
index = 0;
break; // circumflex "^"
case 196:
index = 0;
break; // tilde "~"
case 197:
index = 175;
break; // macron
case 198:
index = 0;
break; // breve
case 199:
index = 0;
break; // dotaccent
case 200:
index = 168;
break; // dieresis "¨"
case 201:
index = -1;
break; // does not exist!
case 202:
index = 0;
break; // ring
case 203:
index = 184;
break; // cedilla "¨"
case 204:
index = -1;
break; // does not exist!
case 205:
index = 0;
break; // hungarumlaut
case 206:
index = 0;
break; // ogonek
case 207:
index = 0;
break; // caron
case 208:
index = 0;
break; // emdash
case 209:
case 210:
case 211:
case 212:
case 213:
case 214:
case 215:
case 216:
case 217:
case 218:
case 219:
case 220:
case 221:
case 222:
case 223:
case 224:
index = -1;
break;
case 225:
index = 198;
break; // AE
case 226:
index = -1;
break;
case 227:
index = 170;
break; // ordfeminine
case 228:
case 229:
case 230:
case 231:
index = -1;
break;
case 232:
index = 0;
break; // Lslash
case 233:
index = 216;
break; // Oslash
case 234:
index = 0;
break; // OE
case 235:
index = 186;
break; // ordmasculine
case 236:
case 237:
case 238:
case 239:
case 240:
index = -1;
break;
case 241:
index = 230;
break; // ae
case 242:
index = -1;
break; // does not exist!
case 243:
case 244:
index = -1;
break;
case 245:
index = 0;
break; // dotlessi
case 246:
case 247:
index = -1;
break;
case 248:
index = 0;
break; // lslash
case 249:
index = 248;
break; // oslash
case 250:
index = 0;
break; // oe
case 251:
index = 223;
break; // germandbls
case -1: {
switch (Name) {
case "brokenbar": index = 166; break;
case "copyright": index = 169; break;
case "logicalnot": index = 172; break;
case "registered": index = 174; break;
case "degree": index = 176; break;
case "plusminus": index = 177; break;
case "twosuperior": index = 178; break;
case "threesuperior": index = 179; break;
case "mu": index = 181; break;
case "onesuperior": index = 185; break;
case "onequarter": index = 188; break;
case "onehalf": index = 189; break;
case "threequarters": index = 190; break;
case "Agrave": index = 192; break;
case "Aacute": index = 193; break;
case "Acircumflex": index = 194; break;
case "Atilde": index = 195; break;
case "Adieresis": index = 196; break;
case "Aring": index = 197; break;
case "Ccedilla": index = 199; break;
case "Egrave": index = 200; break;
case "Eacute": index = 201; break;
case "Ecircumflex": index = 202; break;
case "Edieresis": index = 203; break;
case "Igrave": index = 204; break;
case "Iacute": index = 205; break;
case "Icircumflex": index = 206; break;
case "Idieresis": index = 207; break;
case "Eth": index = 208; break;
case "Ntilde": index = 209; break;
case "Ograve": index = 210; break;
case "Oacute": index = 211; break;
case "Ocircumflex": index = 212; break;
case "Otilde": index = 213; break;
case "Odieresis": index = 214; break;
case "multiply": index = 215; break;
case "Ugrave": index = 217; break;
case "Uacute": index = 218; break;
case "Ucircumflex": index = 219; break;
case "Udieresis": index = 220; break;
case "Yacute": index = 221; break;
case "Thorn": index = 222; break;
case "agrave": index = 224; break;
case "aacute": index = 225; break;
case "acircumflex": index = 226; break;
case "atilde": index = 227; break;
case "adieresis": index = 228; break;
case "aring": index = 229; break;
case "ccedilla": index = 231; break;
case "egrave": index = 232; break;
case "eacute": index = 233; break;
case "ecircumflex": index = 234; break;
case "edieresis": index = 235; break;
case "igrave": index = 236; break;
case "iacute": index = 237; break;
case "icircumflex": index = 238; break;
case "idieresis": index = 239; break;
case "eth": index = 240; break;
case "ntilde": index = 241; break;
case "ograve": index = 242; break;
case "oacute": index = 243; break;
case "ocircumflex": index = 244; break;
case "otilde": index = 245; break;
case "odieresis": index = 246; break;
case "divide": index = 247; break;
case "ugrave": index = 249; break;
case "uacute": index = 250; break;
case "ucircumflex": index = 251; break;
case "udieresis": index = 252; break;
case "yacute": index = 253; break;
case "thorn": index = 254; break;
case "ydieresis": index = 255; break;
case "Amacron": index = 256; break;
case "Abreve": index = 258; break;
case "abreve": index = 259; break;
case "Aogonek": index = 260; break;
case "aogonek": index = 261; break;
case "Cacute": index = 262; break;
case "cacute": index = 263; break;
case "Ccaron": index = 268; break;
case "ccaron": index = 269; break;
case "Dcaron": index = 270; break;
case "dcaron": index = 271; break;
case "Dcroat": index = 272; break;
case "dcroat": index = 273; break;
case "Emacron": index = 274; break;
case "emacron": index = 275; break;
case "Edotaccent": index = 278; break;
case "edotaccent": index = 279; break;
case "Eogonek": index = 280; break;
case "eogonek": index = 281; break;
case "Ecaron": index = 282; break;
case "ecaron": index = 283; break;
case "Gbreve": index = 286; break;
case "gbreve": index = 287; break;
case "Gcommaaccent": index = 290; break;
case "gcommaaccent": index = 291; break;
case "Imacron": index = 298; break;
case "imacron": index = 299; break;
case "Euro": index = 128; break;
default: index = 0; break;
}
break;
}
}
}
if (index > 0)
afm.CharMetrics[index] = this;
}
}
#endregion
}
