Example usage for org.eclipse.jface.bindings.keys KeyStroke KEY_DELIMITERS

Introduction

In this page you can find the example usage for org.eclipse.jface.bindings.keys KeyStroke KEY_DELIMITERS.

Prototype

String KEY_DELIMITERS

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Document

The set of delimiters for Key objects allowed during parsing of the formal string representation.

Usage

From source file:org.eclipse.rcptt.tesla.ecl.internal.impl.commands.ActionService.java

License:Open Source License

private KeyStroke parseKey(final String string) {
    if (string == null) {
        throw new NullPointerException("Cannot parse a null string"); //$NON-NLS-1$
    }/*  www . j ava2  s  .com*/

    final IKeyLookup lookup = KeyLookupFactory.getDefault();
    int modifierKeys = KeyStroke.NO_KEY;
    int naturalKey = KeyStroke.NO_KEY;
    final StringTokenizer stringTokenizer = new StringTokenizer(string, KeyStroke.KEY_DELIMITERS, true);
    int i = 0;

    while (stringTokenizer.hasMoreTokens()) {
        String token = stringTokenizer.nextToken();
        if (i % 2 == 0) {
            if (stringTokenizer.hasMoreTokens()) {
                token = token.toUpperCase();
                final int modifierKey = lookup.formalModifierLookup(token);
                if (modifierKey == KeyStroke.NO_KEY) {
                    throw new IllegalArgumentException();
                }

                modifierKeys |= modifierKey;

            } else if (token.length() == 1) {
                naturalKey = token.charAt(0);

            } else {
                token = token.toUpperCase();
                try {
                    naturalKey = lookup.formalKeyLookup(token);
                } catch (IllegalArgumentException e) {
                    naturalKey = lookup.formalModifierLookup(token);
                }
                if (naturalKey == KeyStroke.NO_KEY) {
                    throw new IllegalArgumentException();
                }
            }
        }

        i++;
    }

    return KeyStroke.getInstance(modifierKeys, naturalKey);
}

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