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java - 将字符映射到国际键集的键码

问题描述

所以我构建了一个 pi 零键盘模拟器，如此处所述：

https://www.rmedgar.com/blog/using-rpi-zero-as-keyboard-setup-and-device-definition

我让它输入从本地文本文件中读取的文本（一切都是用 java 开发的——出于某种原因:)）。
我现在的问题是，我的 pi 零连接到的各种计算机上的配置键集差别很大（德语、英语、法语……）。根据计算机的不同，这会导致几个打字错误（例如，用 z 代替 y）。

所以我现在建立了一些“翻译表”，将字符映射到适合计算机的键码。这样的表如下所示：

public scancodes_en_us() {
    //We have (Character, (scancode, modifier))
    table.put("a",Pair.create("4","0"));
    table.put("b",Pair.create("5","0"));
    table.put("c",Pair.create("6","0"));
    table.put("d",Pair.create("7","0"));
    table.put("e",Pair.create("8","0"));
    table.put("f",Pair.create("9","0"));
    table.put("g",Pair.create("10","0"));
    table.put("h",Pair.create("11","0"));
    table.put("i",Pair.create("12","0"));
    table.put("j",Pair.create("13","0"));
    table.put("k",Pair.create("14","0"));
    table.put("l",Pair.create("15","0"));
    table.put("m",Pair.create("16","0"));
    table.put("n",Pair.create("17","0"));
    table.put("o",Pair.create("18","0"));
    table.put("p",Pair.create("19","0"));
    table.put("q",Pair.create("20","0"));
    table.put("r",Pair.create("21","0"));
    table.put("s",Pair.create("22","0"));
    table.put("t",Pair.create("23","0"));
    table.put("u",Pair.create("24","0"));
    table.put("v",Pair.create("25","0"));
    table.put("w",Pair.create("26","0"));
    table.put("x",Pair.create("27","0"));
    table.put("y",Pair.create("28","0"));
    table.put("z",Pair.create("29","0"));
    table.put("A",Pair.create("4","2"));
    table.put("B",Pair.create("5","2"));
    table.put("C",Pair.create("6","2"));
    table.put("D",Pair.create("7","2"));
    table.put("E",Pair.create("8","2"));
    table.put("F",Pair.create("9","2"));
    table.put("G",Pair.create("10","2"));
    table.put("H",Pair.create("11","2"));
    table.put("I",Pair.create("12","2"));
    table.put("J",Pair.create("13","2"));
    table.put("K",Pair.create("14","2"));
    table.put("L",Pair.create("15","2"));
    table.put("M",Pair.create("16","2"));
    table.put("N",Pair.create("17","2"));
    table.put("O",Pair.create("18","2"));
    table.put("P",Pair.create("19","2"));
    table.put("Q",Pair.create("20","2"));
    table.put("R",Pair.create("21","2"));
    table.put("S",Pair.create("22","2"));
    table.put("V",Pair.create("25","2"));
    table.put("W",Pair.create("26","2"));
    table.put("X",Pair.create("27","2"));
    table.put("Y",Pair.create("28","2"));
    table.put("Z",Pair.create("29","2"));
    table.put("1",Pair.create("30","0"));
    table.put("2",Pair.create("31","0"));
    table.put("5",Pair.create("34","0"));
    table.put("6",Pair.create("35","0"));
    table.put("7",Pair.create("36","0"));
    table.put("8",Pair.create("37","0"));
    table.put("9",Pair.create("38","0"));
    table.put("0",Pair.create("39","0"));
    table.put("!",Pair.create("30","2"));
    table.put("@",Pair.create("31","2"));
    table.put("#",Pair.create("32","2"));
    table.put("$",Pair.create("33","2"));
    table.put("%",Pair.create("34","2"));
    table.put("^",Pair.create("35","2"));
    table.put("&",Pair.create("36","2"));
    table.put("*",Pair.create("37","2"));
    table.put("(",Pair.create("38","2"));
    table.put(")",Pair.create("39","2"));
    table.put(" ",Pair.create("44","0"));
    table.put("-",Pair.create("45","0"));
    table.put("=",Pair.create("46","0"));
    table.put("[",Pair.create("47","0"));
    table.put("]",Pair.create("48","0"));
    table.put("\\",Pair.create("49","0"));
    table.put(";",Pair.create("51","0"));
    table.put("'",Pair.create("52","0"));
    table.put("`",Pair.create("53","0"));
    table.put(",",Pair.create("54","0"));
    table.put(".",Pair.create("55","0"));
    table.put("/",Pair.create("56","0"));
    table.put("_",Pair.create("45","2"));
    table.put("+",Pair.create("46","2"));
    table.put("{",Pair.create("47","2"));
    table.put("}",Pair.create("48","2"));
    table.put("|",Pair.create("49","2"));
    table.put(":",Pair.create("51","2"));
    table.put("\"",Pair.create("52","2"));
    table.put("~",Pair.create("53","2"));
    table.put("<",Pair.create("54","2"));
    table.put(">",Pair.create("55","2"));
    table.put("?",Pair.create("56","2"));

为许多不同的键盘布局拥有这样的表格是一件痛苦的事情。是否有一些更聪明的版本可以将字符映射到特定键盘布局的扫描码？

如果没有 - 是否有某种存档，我可以在其中找到这样一个字符到扫描码映射的许多不同键盘布局？

非常感谢

标签： javaraspberry-piscancodes

解决方案

看看本地化是如何工作的，它们都共享相同的方法：为每个本地化创建一个特殊版本作为属性文件，然后有一个抽象类来加载基于语言环境的属性。

您将开发一个像这样的加载器类：

public scancodes(Locale locale) {
    // load locale property file or download if missing
    // read the property and store to the table
    ResourceBundle scanCodes = ResourceBundle.getBundle("codes",locale);
}

你codes_locale看起来像：

codes_de.properties

a=4,0
b=5,0

通过这样做，您将区域设置特定字符与您的逻辑代码分开，并且您不需要将所有键盘捆绑在您的应用程序中。您可以根据需要下载它们。

您可以在此处访问教程

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