FabGL
ESP32 Display Controller and Graphics Library
codepages.h
Go to the documentation of this file.
1/*
2 Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - <http://www.fabgl.com>
3 Copyright (c) 2019-2022 Fabrizio Di Vittorio.
4 All rights reserved.
5
6
7* Please contact fdivitto2013@gmail.com if you need a commercial license.
8
9
10* This library and related software is available under GPL v3.
11
12 FabGL is free software: you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation, either version 3 of the License, or
15 (at your option) any later version.
16
17 FabGL is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with FabGL. If not, see <http://www.gnu.org/licenses/>.
24 */
25
26
27
28#pragma once
29
30
39#include "fabutils.h"
40
41
42namespace fabgl {
43
44
45
46// associates virtual key to ASCII code
47struct VirtualKeyToASCII {
48 VirtualKey vk;
49 uint8_t ASCII;
50};
51
52
53struct CodePage {
54 uint16_t codepage;
55 const VirtualKeyToASCII * convTable; // last item has vk = VK_NONE (ending marker)
56};
57
58
59extern const CodePage CodePage437;
60extern const CodePage CodePage1252;
61
62
63struct CodePages {
64 static int count() { return 2; }
65 static CodePage const * get(uint16_t codepage, CodePage const * defaultValue = &CodePage437) {
66 static const CodePage * codepages[] = { &CodePage437, &CodePage1252 };
67 for (int i = 0; i < sizeof(CodePage) / sizeof(CodePage*); ++i)
68 if (codepages[i]->codepage == codepage)
69 return codepages[i];
70 return defaultValue;
71 }
72};
73
74
75
90int virtualKeyToASCII(VirtualKeyItem const & item, CodePage const * codepage);
91
92
93
94} // fabgl namespace
95
This file contains some utility classes and functions.
VirtualKey
Represents each possible real or derived (SHIFT + real) key.
Definition: fabutils.h:1097