clutter: Add keyval helpers
Infrastructure for adding meta_accelerator_name Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2407>
This commit is contained in:
Bilal Elmoussaoui
parent
8207df77e8
commit
6aeb9eef4e
215
clutter/clutter/clutter-keyval.c
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215
clutter/clutter/clutter-keyval.c
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/*
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* Copyright (C) 2021 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Author: Bilal Elmoussaoui <belmous@redhat.com>
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*
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* The code is a modified version of the GDK implementation
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*/
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#include <glib.h>
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#include <glib/gprintf.h>
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#include "clutter-keyval.h"
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#include "clutter-event.h"
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#include "clutter-keysyms.h"
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#include "clutter-keyname-table.h"
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#define CLUTTER_NUM_KEYS G_N_ELEMENTS (clutter_keys_by_keyval)
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/**
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* clutter_keyval_convert_case:
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* @symbol: a keyval.
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* @lower: (out): return location of the lowercase version of @symbol.
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* @upper: (out): return location of the uppercase version of @symbol.
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*/
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void
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clutter_keyval_convert_case (unsigned int symbol,
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unsigned int *lower,
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unsigned int *upper)
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{
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unsigned int xlower, xupper;
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xlower = symbol;
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xupper = symbol;
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/* Check for directly encoded 24-bit UCS characters: */
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if ((symbol & 0xff000000) == 0x01000000)
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{
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if (lower)
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*lower = clutter_unicode_to_keysym (g_unichar_tolower (symbol & 0x00ffffff));
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if (upper)
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*upper = clutter_unicode_to_keysym (g_unichar_toupper (symbol & 0x00ffffff));
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return;
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}
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switch (symbol >> 8)
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{
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case 0: /* Latin 1 */
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if ((symbol >= CLUTTER_KEY_A) && (symbol <= CLUTTER_KEY_Z))
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xlower += (CLUTTER_KEY_a - CLUTTER_KEY_A);
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else if ((symbol >= CLUTTER_KEY_a) && (symbol <= CLUTTER_KEY_z))
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xupper -= (CLUTTER_KEY_a - CLUTTER_KEY_A);
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else if ((symbol >= CLUTTER_KEY_Agrave) && (symbol <= CLUTTER_KEY_Odiaeresis))
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xlower += (CLUTTER_KEY_agrave - CLUTTER_KEY_Agrave);
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else if ((symbol >= CLUTTER_KEY_agrave) && (symbol <= CLUTTER_KEY_odiaeresis))
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xupper -= (CLUTTER_KEY_agrave - CLUTTER_KEY_Agrave);
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else if ((symbol >= CLUTTER_KEY_Ooblique) && (symbol <= CLUTTER_KEY_Thorn))
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xlower += (CLUTTER_KEY_oslash - CLUTTER_KEY_Ooblique);
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else if ((symbol >= CLUTTER_KEY_oslash) && (symbol <= CLUTTER_KEY_thorn))
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xupper -= (CLUTTER_KEY_oslash - CLUTTER_KEY_Ooblique);
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break;
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case 1: /* Latin 2 */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol == CLUTTER_KEY_Aogonek)
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xlower = CLUTTER_KEY_aogonek;
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else if (symbol >= CLUTTER_KEY_Lstroke && symbol <= CLUTTER_KEY_Sacute)
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xlower += (CLUTTER_KEY_lstroke - CLUTTER_KEY_Lstroke);
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else if (symbol >= CLUTTER_KEY_Scaron && symbol <= CLUTTER_KEY_Zacute)
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xlower += (CLUTTER_KEY_scaron - CLUTTER_KEY_Scaron);
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else if (symbol >= CLUTTER_KEY_Zcaron && symbol <= CLUTTER_KEY_Zabovedot)
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xlower += (CLUTTER_KEY_zcaron - CLUTTER_KEY_Zcaron);
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else if (symbol == CLUTTER_KEY_aogonek)
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xupper = CLUTTER_KEY_Aogonek;
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else if (symbol >= CLUTTER_KEY_lstroke && symbol <= CLUTTER_KEY_sacute)
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xupper -= (CLUTTER_KEY_lstroke - CLUTTER_KEY_Lstroke);
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else if (symbol >= CLUTTER_KEY_scaron && symbol <= CLUTTER_KEY_zacute)
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xupper -= (CLUTTER_KEY_scaron - CLUTTER_KEY_Scaron);
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else if (symbol >= CLUTTER_KEY_zcaron && symbol <= CLUTTER_KEY_zabovedot)
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xupper -= (CLUTTER_KEY_zcaron - CLUTTER_KEY_Zcaron);
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else if (symbol >= CLUTTER_KEY_Racute && symbol <= CLUTTER_KEY_Tcedilla)
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xlower += (CLUTTER_KEY_racute - CLUTTER_KEY_Racute);
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else if (symbol >= CLUTTER_KEY_racute && symbol <= CLUTTER_KEY_tcedilla)
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xupper -= (CLUTTER_KEY_racute - CLUTTER_KEY_Racute);
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break;
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case 2: /* Latin 3 */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= CLUTTER_KEY_Hstroke && symbol <= CLUTTER_KEY_Hcircumflex)
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xlower += (CLUTTER_KEY_hstroke - CLUTTER_KEY_Hstroke);
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else if (symbol >= CLUTTER_KEY_Gbreve && symbol <= CLUTTER_KEY_Jcircumflex)
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xlower += (CLUTTER_KEY_gbreve - CLUTTER_KEY_Gbreve);
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else if (symbol >= CLUTTER_KEY_hstroke && symbol <= CLUTTER_KEY_hcircumflex)
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xupper -= (CLUTTER_KEY_hstroke - CLUTTER_KEY_Hstroke);
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else if (symbol >= CLUTTER_KEY_gbreve && symbol <= CLUTTER_KEY_jcircumflex)
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xupper -= (CLUTTER_KEY_gbreve - CLUTTER_KEY_Gbreve);
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else if (symbol >= CLUTTER_KEY_Cabovedot && symbol <= CLUTTER_KEY_Scircumflex)
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xlower += (CLUTTER_KEY_cabovedot - CLUTTER_KEY_Cabovedot);
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else if (symbol >= CLUTTER_KEY_cabovedot && symbol <= CLUTTER_KEY_scircumflex)
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xupper -= (CLUTTER_KEY_cabovedot - CLUTTER_KEY_Cabovedot);
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break;
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case 3: /* Latin 4 */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= CLUTTER_KEY_Rcedilla && symbol <= CLUTTER_KEY_Tslash)
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xlower += (CLUTTER_KEY_rcedilla - CLUTTER_KEY_Rcedilla);
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else if (symbol >= CLUTTER_KEY_rcedilla && symbol <= CLUTTER_KEY_tslash)
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xupper -= (CLUTTER_KEY_rcedilla - CLUTTER_KEY_Rcedilla);
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else if (symbol == CLUTTER_KEY_ENG)
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xlower = CLUTTER_KEY_eng;
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else if (symbol == CLUTTER_KEY_eng)
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xupper = CLUTTER_KEY_ENG;
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else if (symbol >= CLUTTER_KEY_Amacron && symbol <= CLUTTER_KEY_Umacron)
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xlower += (CLUTTER_KEY_amacron - CLUTTER_KEY_Amacron);
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else if (symbol >= CLUTTER_KEY_amacron && symbol <= CLUTTER_KEY_umacron)
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xupper -= (CLUTTER_KEY_amacron - CLUTTER_KEY_Amacron);
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break;
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case 6: /* Cyrillic */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= CLUTTER_KEY_Serbian_DJE && symbol <= CLUTTER_KEY_Serbian_DZE)
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xlower -= (CLUTTER_KEY_Serbian_DJE - CLUTTER_KEY_Serbian_dje);
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else if (symbol >= CLUTTER_KEY_Serbian_dje && symbol <= CLUTTER_KEY_Serbian_dze)
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xupper += (CLUTTER_KEY_Serbian_DJE - CLUTTER_KEY_Serbian_dje);
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else if (symbol >= CLUTTER_KEY_Cyrillic_YU && symbol <= CLUTTER_KEY_Cyrillic_HARDSIGN)
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xlower -= (CLUTTER_KEY_Cyrillic_YU - CLUTTER_KEY_Cyrillic_yu);
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else if (symbol >= CLUTTER_KEY_Cyrillic_yu && symbol <= CLUTTER_KEY_Cyrillic_hardsign)
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xupper += (CLUTTER_KEY_Cyrillic_YU - CLUTTER_KEY_Cyrillic_yu);
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break;
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case 7: /* Greek */
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/* Assume the KeySym is a legal value (ignore discontinuities) */
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if (symbol >= CLUTTER_KEY_Greek_ALPHAaccent && symbol <= CLUTTER_KEY_Greek_OMEGAaccent)
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xlower += (CLUTTER_KEY_Greek_alphaaccent - CLUTTER_KEY_Greek_ALPHAaccent);
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else if (symbol >= CLUTTER_KEY_Greek_alphaaccent && symbol <= CLUTTER_KEY_Greek_omegaaccent &&
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symbol != CLUTTER_KEY_Greek_iotaaccentdieresis &&
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symbol != CLUTTER_KEY_Greek_upsilonaccentdieresis)
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xupper -= (CLUTTER_KEY_Greek_alphaaccent - CLUTTER_KEY_Greek_ALPHAaccent);
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else if (symbol >= CLUTTER_KEY_Greek_ALPHA && symbol <= CLUTTER_KEY_Greek_OMEGA)
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xlower += (CLUTTER_KEY_Greek_alpha - CLUTTER_KEY_Greek_ALPHA);
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else if (symbol == CLUTTER_KEY_Greek_finalsmallsigma)
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xupper = CLUTTER_KEY_Greek_SIGMA;
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else if (symbol >= CLUTTER_KEY_Greek_alpha && symbol <= CLUTTER_KEY_Greek_omega)
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xupper -= (CLUTTER_KEY_Greek_alpha - CLUTTER_KEY_Greek_ALPHA);
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break;
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default:
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break;
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}
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if (lower)
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*lower = xlower;
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if (upper)
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*upper = xupper;
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}
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static int
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clutter_keys_keyval_compare (const void *pkey, const void *pbase)
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{
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return (*(int *) pkey) - ((clutter_key *) pbase)->keyval;
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}
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/**
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* clutter_keyval_name:
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* @keyval: A key value.
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*
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* Returns: (nullable): The corresponding symbolic name.
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*/
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char *
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clutter_keyval_name (unsigned int keyval)
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{
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static char buf[100];
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clutter_key *found;
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/* Check for directly encoded 24-bit UCS characters: */
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if ((keyval & 0xff000000) == 0x01000000)
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{
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g_sprintf (buf, "U+%.04X", (keyval & 0x00ffffff));
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return buf;
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}
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found = bsearch (&keyval, clutter_keys_by_keyval,
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CLUTTER_NUM_KEYS, sizeof (clutter_key),
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clutter_keys_keyval_compare);
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if (found != NULL)
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{
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while ((found > clutter_keys_by_keyval) &&
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((found - 1)->keyval == keyval))
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found--;
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return (char *) (keynames + found->offset);
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}
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else if (keyval != 0)
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{
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g_sprintf (buf, "%#x", keyval);
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return buf;
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}
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return NULL;
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}
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44
clutter/clutter/clutter-keyval.h
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44
clutter/clutter/clutter-keyval.h
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@ -0,0 +1,44 @@
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/*
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* Copyright (C) 2021 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Author: Bilal Elmoussaoui <belmous@redhat.com>
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*
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* The code is a modified version of the GDK implementation
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*/
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#ifndef __CLUTTER_KEYVAL_H__
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#define __CLUTTER_KEYVAL_H__
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/keyval.h> can be included directly."
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#endif
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#include <clutter/clutter-types.h>
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G_BEGIN_DECLS
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CLUTTER_EXPORT
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void clutter_keyval_convert_case (unsigned int symbol,
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unsigned int *lower,
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unsigned int *upper);
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CLUTTER_EXPORT
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char * clutter_keyval_name (unsigned int keyval);
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G_END_DECLS
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#endif /* __CLUTTER_KEYVAL_H__ */
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@ -76,6 +76,7 @@
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#include "clutter-keyframe-transition.h"
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#include "clutter-keymap.h"
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#include "clutter-keysyms.h"
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#include "clutter-keyval.h"
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#include "clutter-layout-manager.h"
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#include "clutter-layout-meta.h"
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#include "clutter-macros.h"
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@ -50,6 +50,8 @@ clutter_headers = [
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'clutter-keyframe-transition.h',
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'clutter-keymap.h',
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'clutter-keysyms.h',
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'clutter-keyval.c',
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'clutter-keyval.h',
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'clutter-layout-manager.h',
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'clutter-layout-meta.h',
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'clutter-macros.h',
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