Doubts on KeyCode

Tom Schindl tom.schindl at bestsolution.at
Mon Mar 30 12:06:48 UTC 2015


Hi,

I think I'll start to understand, when I type ] on a german keyboard I
have to use a modifier key (on OS-X ALT) but the keycode without
modifier is the one for the +.

Tom

On 30.03.15 13:56, Benjamin Gudehus wrote:
> Hi,
> 
>>What I can not explain is why the keyboard "+" (ascii-code 43) maps to
> "]" (ascii-code 93) from a native-keyevent to KeyCode happens in
> Glass-Layer.
> 
> Hmm, the "+" key on a german keyboard layout [1] is actually "]" on the
> us keyboard layout [2].
> 
> But when I type "+" on my german keyboard with german layout activated
> on Windows it outputs "+" as unicode string and "PLUS" for the KeyCode.
> With this code:
> 
> textField.setOnKeyPressed((event) -> {
>     System.out.println(event.getText());
>     System.out.println(event.getCode());
> });
> 
> [1]
> http://upload.wikimedia.org/wikipedia/commons/thumb/3/36/KB_Germany.svg/800px-KB_Germany.svg.png
> [2]
> http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/KB_United_States-NoAltGr.svg/800px-KB_United_States-NoAltGr.svg.png
> 
> On Mon, Mar 30, 2015 at 1:19 PM, Scott Palmer <swpalmer at gmail.com
> <mailto:swpalmer at gmail.com>> wrote:
> 
>     If I recall correctly there is one keycode named PLUS and another
>     named ADD. One of them refers to the numeric keypad.
> 
>     Scott
> 
>     > On Mar 30, 2015, at 6:58 AM, Tom Schindl
>     <tom.schindl at bestsolution.at <mailto:tom.schindl at bestsolution.at>>
>     wrote:
>     >
>     > hi,
>     >
>     > suppose you have the following code:
>     >
>     >> package application;
>     >>
>     >> import javafx.application.Application;
>     >> import javafx.scene.Scene;
>     >> import javafx.scene.control.TextField;
>     >> import javafx.scene.layout.BorderPane;
>     >> import javafx.stage.Stage;
>     >>
>     >> public class Main extends Application {
>     >>    @Override
>     >>    public void start(Stage primaryStage) {
>     >>        try {
>     >>            BorderPane root = new BorderPane();
>     >>            Scene scene = new Scene(root, 400, 400);
>     >>
>     >>            TextField f = new TextField();
>     >>            f.setOnKeyReleased( e -> {
>     >>                System.err.println(e.getCode());
>     >>            });
>     >>            root.setCenter(f);
>     >>
>     >>            primaryStage.setScene(scene);
>     >>            primaryStage.show();
>     >>        } catch (Exception e) {
>     >>            e.printStackTrace();
>     >>        }
>     >>    }
>     >>
>     >>    public static void main(String[] args) {
>     >>        launch(args);
>     >>    }
>     >> }
>     >
>     > For default ASCII-Chars like a, b, c, ... I get the correct
>     KeyCode but
>     > e.g. for +, -, ... the information is totally bogus. Please note I get
>     > the correct keyCode when pressing the NumPad char but e.g.
>     CLOSE_BRACKET
>     > when pressing "+" on my keyboard.
>     >
>     > If I'm not completely mistaken the KeyCode defintion for the current +
>     > is the one for the keypad "+" and the one for the ordinary + is
>     missing?
>     >
>     > This means that the definition:
>     >
>     > PLUS(0x0209, "Plus")
>     >
>     > has to be
>     >
>     > PLUS(0x0209, "Plus", KeyCodeClass.KEYPAD)
>     >
>     > What I can not explain is why the keyboard "+" (ascii-code 43) maps to
>     > "]" (ascii-code 93) from a native-keyevent to KeyCode happens in
>     > Glass-Layer.
>     >
>     > Tom
>     >
>     > --
>     > Thomas Schindl, CTO
>     > BestSolution.at EDV Systemhaus GmbH
>     > Eduard-Bodem-Gasse 5-7, A-6020 Innsbruck
>     > http://www.bestsolution.at/
>     > Reg. Nr. FN 222302s am Firmenbuchgericht Innsbruck
> 
> 


-- 
Thomas Schindl, CTO
BestSolution.at EDV Systemhaus GmbH
Eduard-Bodem-Gasse 5-7, A-6020 Innsbruck
http://www.bestsolution.at/
Reg. Nr. FN 222302s am Firmenbuchgericht Innsbruck


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