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- /*
- Copyright (c) 1992, 1993 Heinz W. Werntges. All rights reserved.
- Distributed by Free Software Foundation, Inc.
-
- This file is part of HP2xx.
-
- HP2xx is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the GNU General Public License, Version 2 or later, for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- HP2xx, but only under the conditions described in the GNU General Public
- License. A copy of this license is supposed to have been
- given to you along with HP2xx so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies.
-
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- */
-
- /**
- ** This file defines a standard character set by elementary
- ** "draw" & "move" commands. The format is a very compact one from
- ** the old days where every byte was still appreciated.
- **
- ** A font or character set is an array of strings. Each character
- ** corresponds to one of these strings, which is addressed by its ASCII code.
- **
- ** A character is a (NULL-terminated) string of bytes. Each byte
- ** codes for a draw or move action according to the code below:
- **
- ** Bit: 7 6 5 4 3 2 1 0
- ** p x x x y y y y
- **
- ** p: Plot flag. If set, "draw to" new point, else "move to" it.
- ** xxx: 3-bit unsigned integer (0...7). X coordinate of new point.
- ** yyyy: 4-bit unsigned integer (0..15). Y coordinate of new point.
- **
- ** The baseline is y = 4 instead of y = 0, so characters with parts
- ** below it can be drawn properly without a need for sign bits.
- ** Function "code_to_ucoord()" transforms these coordinates into
- ** actual user coordinates.
- **
- ** Example: code for character 'L': "\032\224\324" translates to:
- ** moveto(1,10); drawto(1,4); drawto(5,4);
- **
- ** From the example you can conclude that the font below essentially is
- ** defined on a 5x7 grid:
- **
- ** 0 1 2 3 4 5 6 7
- ** 15 . . . . . . . . . : unused
- ** 14 . . . . . . . . * : always used
- ** 13 . . . . . . . . o : sometimes used
- ** 12 . . . . . . . .
- ** 11 . . . . . . . .
- ** 10 o * * * * * . .
- ** 9 o * * * * * . .
- ** 8 o * * * * * . .
- ** 7 o * * * * * . .
- ** 6 o * * * * * . .
- ** 5 o * * * * * . .
- ** 4 o * * * * * . .
- ** 3 o o o o o o . .
- ** 2 o o o o o o . .
- ** 1 o o o o o o . .
- ** 0 o o o o o o . .
- **/
-
-
- /**
- ** The following array of strings contains the basic character set (set 0).
- **
- ** NOTE: A nice way to add a new charset would be, e. g., to introduce a
- ** ``charset1[]'' as the "alternate" charset and implement the HP-GL
- ** commands needed for switching from one to the other.
- **/
-
- char *charset0[128] =
- {
- /* 0x00 ... 0x1f */
-
- /**
- ** Some control codes are valid in HPGL. These are handled elsewhere
- ** in a font-independent manner, so following codes are dummies:
- **/
- "","","","", "","","","", "","","","", "","","","",
- "","","","", "","","","", "","","","", "","","","",
-
- /**
- ** Unfortunately, some compilers do not process \xNN properly,
- ** so I changed all hex codes (\xNN) into octal codes (\NNN),
- ** thereby losing readability but gaining portability.
- **/
-
- /* 0x20 ... 0x2f */
- "",
- "\064\265\066\272",
- "\051\252\111\312",
- "\044\252\104\312\026\326\030\330",
- "\064\272\131\251\230\247\307\326\305\225",
- "\024\332\051\250\270\271\251\066\265\305\306\266",
- "\124\230\231\252\271\270\226\225\244\264\326",
- "\071\312",
- "\132\270\266\324",
- "\024\266\270\232",
- "\005\351\145\211\072\264",
- "\065\271\027\327",
- "\064\244\245\265\263\242",
- "\027\327",
- "\064\244\245\265\264",
- "\352",
-
- /* 0x30 ... 0x3f */
- /*
- "\025\244\304\325\331\312\252\231\225\331", ** Zero including `/' **
- */
- "\025\244\304\325\331\312\252\231\225",
- "\044\304\064\272\251",
- "\031\252\312\331\330\225\224\324",
- "\025\244\304\325\326\307\267\332\232",
- "\112\227\226\326\107\304",
- "\132\232\230\310\327\325\304\244\225",
- "\132\272\230\225\244\304\325\326\307\227",
- "\032\332\331\226\224",
- "\107\330\331\312\252\231\230\247\307\326\325\304\244\225\226\247",
- "\044\264\326\331\312\252\231\230\247\327",
- "\047\250\270\267\247\045\265\264\244\245",
- "\046\247\267\266\246\064\244\245\265\263\242",
- "\112\227\304",
- "\030\330\026\326",
- "\032\307\224",
- "\031\252\312\331\330\307\267\266\065\264",
-
- /* 0x40 ... 0x4f */
- "\103\243\224\230\252\312\331\326\305\266\267\310\330",
- "\024\231\252\312\331\324\026\326",
- "\024\232\312\331\330\307\227\024\304\325\326\307",
- "\125\304\244\225\231\252\312\331",
- "\024\232\312\331\325\304\224",
- "\124\224\232\332\027\307",
- "\024\232\332\027\307",
- "\131\312\252\231\225\244\304\325\327\247",
- "\024\232\124\332\027\327",
- "\024\324\064\272\032\332",
- "\025\244\304\325\332\232",
- "\024\232\027\247\324\047\332",
- "\032\224\324",
- "\024\232\270\332\324",
- "\024\232\324\332",
- "\044\225\231\252\312\331\325\304\244",
-
- /* 0x50 ... 0x5f */
- "\024\232\312\331\330\307\227",
- "\044\225\231\252\312\331\326\264\244\066\324",
- "\024\232\312\331\330\307\227\247\324",
- "\025\244\304\325\326\307\247\230\231\252\312\331",
- "\064\272\232\332",
- "\032\225\244\304\325\332",
- "\032\230\264\330\332",
- "\032\224\267\324\332",
- "\024\332\124\232",
- "\032\231\266\264\066\331\332",
- "\032\332\224\324",
- "\124\264\272\332",
- "\032\324",
- "\024\264\272\232",
- "\030\272\330",
- "\023\323",
-
- /* 0x60 ... 0x6f */
- "\053\310",
- "\124\244\225\227\250\310\304",
- "\024\304\325\327\310\250\052\244",
- "\125\304\264\245\247\270\310\327",
- "\112\304\244\225\227\250\310\104\324",
- "\026\306\327\310\250\227\225\244\324",
- "\064\271\312\332\047\307",
- "\022\262\303\310\250\227\225\244\304",
- "\032\224\030\270\307\304",
- "\072\271\050\270\264\044\304",
- "\072\271\050\270\263\242\222",
- "\024\232\104\226\310",
- "\052\272\264\044\304",
- "\024\230\027\250\267\264\067\310\327\324",
- "\024\230\027\250\270\307\304",
- "\044\225\227\250\270\307\305\264\244",
-
- /* 0x70 ... 0x7f */
- "\022\230\270\307\305\264\224",
- "\104\244\225\227\250\310\302",
- "\030\224\026\270\310",
- "\110\250\227\246\266\305\264\224",
- "\052\244\304\030\310",
- "\030\225\244\304\310",
- "\030\226\264\326\330",
- "\030\225\244\265\267\065\304\325\330",
- "\030\324\024\330",
- "\022\326\330\030\226\264",
- "\030\310\224\304",
- "\113\273\252\250\227\246\244\263\303",
- "\073\263",
- "\053\273\312\310\327\306\304\263\243",
- "\031\252\310\331",
- ""
- };
-