mirror of
https://github.com/gwenhael-le-moine/x49gp.git
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279 lines
6.7 KiB
C
279 lines
6.7 KiB
C
/* $Id: symbol.c,v 1.4 2008/12/11 12:18:17 ecd Exp $
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <cairo.h>
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#include <symbol.h>
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static const cairo_path_data_t symbol_square_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.100, 0.100 ),
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SYMBOL_LINE_TO( 0.500, 0.000 ),
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SYMBOL_LINE_TO( 0.000, 0.500 ),
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SYMBOL_LINE_TO( -0.500, 0.000 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(square, 0.7, 0.0, 0.1, 0.1, 0.6, 0.6);
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static const cairo_path_data_t symbol_triangleup_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.100, 0.000 ),
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SYMBOL_LINE_TO( 0.800, 0.000 ),
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SYMBOL_LINE_TO( -0.400, 0.693 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(triangleup, 1.0, 0.0, 0.1, 0.0, 0.9, 0.693);
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static const cairo_path_data_t symbol_triangleright_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.100, 0.000 ),
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SYMBOL_LINE_TO( 0.000, 0.800 ),
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SYMBOL_LINE_TO( 0.693, -0.400 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(triangleright, 0.893, 0.0, 0.1, 0.0, 0.793, 0.8);
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static const cairo_path_data_t symbol_arrowleftdblfull_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.100, 0.370 ),
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SYMBOL_LINE_TO( 0.652, 0.500 ),
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SYMBOL_LINE_TO( 0.000, -0.250 ),
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SYMBOL_LINE_TO( 1.000, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.500 ),
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SYMBOL_LINE_TO( -1.000, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.250 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(arrowleftdblfull, 1.852, 0.0, 0.1, -0.13, 1.752, 0.87);
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static const cairo_path_data_t symbol_uparrowleft_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.100, 0.500 ),
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SYMBOL_LINE_TO( 0.600, 0.200 ),
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SYMBOL_LINE_TO( 0.000, -0.150 ),
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SYMBOL_LINE_TO( 0.500, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.550 ),
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SYMBOL_LINE_TO( -0.100, 0.000 ),
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SYMBOL_LINE_TO( 0.000, 0.450 ),
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SYMBOL_LINE_TO( -0.400, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.150 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(uparrowleft, 1.3, 0.0, 0.1, 0.0, 1.2, 0.7);
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static const cairo_path_data_t symbol_uparrowright_path_data[] =
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{
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SYMBOL_MOVE_TO( 1.200, 0.500 ),
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SYMBOL_LINE_TO( -0.600, 0.200 ),
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SYMBOL_LINE_TO( 0.000, -0.150 ),
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SYMBOL_LINE_TO( -0.500, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.550 ),
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SYMBOL_LINE_TO( 0.100, 0.000 ),
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SYMBOL_LINE_TO( 0.000, 0.450 ),
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SYMBOL_LINE_TO( 0.400, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.150 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(uparrowright, 1.3, 0.0, 0.1, 0.0, 1.2, 0.7);
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static const cairo_path_data_t symbol_tick_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.100, 0.400 ),
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SYMBOL_LINE_TO( 0.000, 0.450 ),
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SYMBOL_LINE_TO( 0.150, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.450 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(tick, 0.35, 0.0, 0.1, 0.4, 0.25, 0.85);
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static const cairo_path_data_t symbol_radical_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.000, 0.500 ),
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SYMBOL_LINE_TO( 0.214, 0.100 ),
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SYMBOL_LINE_TO( 0.213, -0.456 ),
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SYMBOL_LINE_TO( 0.229, 0.856 ),
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SYMBOL_LINE_TO( 0.077, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.100 ),
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SYMBOL_LINE_TO( -0.281, -1.050 ),
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SYMBOL_LINE_TO( -0.287, 0.616 ),
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SYMBOL_LINE_TO( -0.123, -0.057 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(radical, 0.733, 0.0, 0.0, -0.15, 0.733, 1.0);
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static const cairo_path_data_t symbol_overscore_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.000, 1.000 ),
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SYMBOL_LINE_TO( 0.900, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.100 ),
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SYMBOL_LINE_TO( -0.900, 0.000 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(overscore, 0.8, 0.0, 0.0, 0.9, 0.9, 1.0);
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static const cairo_path_data_t symbol_minus_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.050, 0.312 ),
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SYMBOL_LINE_TO( 0.000, 0.118 ),
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SYMBOL_LINE_TO( 0.500, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.118 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(minus, 0.6, 0.0, 0.05, 0.312, 0.55, 0.430);
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static const cairo_path_data_t symbol_divide_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.050, 0.312 ),
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SYMBOL_LINE_TO( 0.000, 0.118 ),
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SYMBOL_LINE_TO( 0.500, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.118 ),
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SYMBOL_CLOSE_PATH(),
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SYMBOL_MOVE_TO( 0.180, -0.108 ),
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SYMBOL_LINE_TO( 0.135, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.135 ),
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SYMBOL_LINE_TO( -0.135, 0.000 ),
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SYMBOL_CLOSE_PATH(),
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SYMBOL_MOVE_TO( 0.000, 0.334 ),
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SYMBOL_LINE_TO( 0.000, 0.135 ),
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SYMBOL_LINE_TO( 0.135, 0.000 ),
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SYMBOL_LINE_TO( 0.000, -0.135 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(divide, 0.6, 0.0, 0.05, 0.069, 0.55, 0.673);
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static const cairo_path_data_t symbol_divisionslash_path_data[] =
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{
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SYMBOL_MOVE_TO( 0.050, 0.000 ),
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SYMBOL_LINE_TO( 0.345, 0.739 ),
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SYMBOL_LINE_TO( 0.130, 0.000 ),
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SYMBOL_LINE_TO( -0.345, -0.739 ),
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SYMBOL_CLOSE_PATH()
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};
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SYMBOL(divisionslash, 0.575, 0.000, 0.050, 0.000, 0.525, 0.739);
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CONTROL(beginsuperscript, 0.0, 0.5, 1.0, 0.8);
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CONTROL(endsuperscript, 0.0, 0.5, 1.25, 1.0);
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CONTROL(kern_m1, -0.1, 0.0, 1.0, 1.0);
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CONTROL(kern_m2, -0.2, 0.0, 1.0, 1.0);
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CONTROL(kern_m3, -0.3, 0.0, 1.0, 1.0);
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CONTROL(kern_m4, -0.4, 0.0, 1.0, 1.0);
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CONTROL(kern_m5, -0.5, 0.0, 1.0, 1.0);
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CONTROL(kern_m6, -0.6, 0.0, 1.0, 1.0);
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CONTROL(kern_m7, -0.7, 0.0, 1.0, 1.0);
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CONTROL(kern_m8, -0.8, 0.0, 1.0, 1.0);
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CONTROL(kern_m9, -0.9, 0.0, 1.0, 1.0);
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typedef struct {
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const char *name;
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const x49gp_symbol_t *symbol;
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} symbol_name_t;
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static const symbol_name_t symbol_names[] =
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{
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{ ".notdef", &symbol_square },
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{ "arrowleftdblfull", &symbol_arrowleftdblfull },
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{ "divide", &symbol_divide },
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{ "divisionslash", &symbol_divisionslash },
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{ "minus", &symbol_minus },
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{ "overscore", &symbol_overscore },
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{ "radical", &symbol_radical },
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{ "square", &symbol_square },
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{ "tick", &symbol_tick },
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{ "triangleright", &symbol_triangleright },
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{ "triangleup", &symbol_triangleup },
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{ "uparrowleft", &symbol_uparrowleft },
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{ "uparrowright", &symbol_uparrowright },
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{ "super", &symbol_beginsuperscript },
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{ "/super", &symbol_endsuperscript },
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{ "kern-1", &symbol_kern_m1 },
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{ "kern-2", &symbol_kern_m2 },
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{ "kern-3", &symbol_kern_m3 },
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{ "kern-4", &symbol_kern_m4 },
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{ "kern-5", &symbol_kern_m5 },
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{ "kern-6", &symbol_kern_m6 },
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{ "kern-7", &symbol_kern_m7 },
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{ "kern-8", &symbol_kern_m8 },
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{ "kern-9", &symbol_kern_m9 },
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{ NULL, NULL }
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};
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#define NR_SYMBOLS (sizeof(symbol_names) / sizeof(symbol_names[0]) - 1)
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int
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symbol_lookup_glyph_by_name(const char *name, int namelen, gunichar *glyph)
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{
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const symbol_name_t *symname;
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int i = 0;
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/*
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* Code symbols as Unicode Private Use from U+E000 on...
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*/
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symname = symbol_names;
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while (symname->name) {
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if ((strlen(symname->name) == namelen) &&
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!strncmp(symname->name, name, namelen)) {
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if (glyph) {
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*glyph = 0xe000 + i;
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}
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return 1;
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}
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symname++;
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i++;
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}
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return 0;
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}
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const x49gp_symbol_t *
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symbol_get_by_glyph(gunichar glyph)
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{
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int index = glyph - 0xe000;
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if ((index >= 0) && (index < NR_SYMBOLS)) {
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return symbol_names[index].symbol;
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}
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return NULL;
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}
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const x49gp_symbol_t *
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symbol_get_by_name(const char *name)
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{
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gunichar glyph;
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if (symbol_lookup_glyph_by_name(name, strlen(name), &glyph)) {
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return symbol_get_by_glyph(glyph);
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}
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return NULL;
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}
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