mirror of
https://github.com/Julow/Unexpected-Keyboard.git
synced 2024-12-11 08:31:14 +01:00
214 lines
6.2 KiB
Java
214 lines
6.2 KiB
Java
package juloo.keyboard2;
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import android.util.SparseArray;
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import android.view.KeyCharacterMap;
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import android.view.KeyEvent;
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import java.util.HashMap;
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class KeyModifier
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{
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/* Cache key is KeyValue's name */
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private static HashMap<String, SparseArray<KeyValue>> _cache =
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new HashMap<String, SparseArray<KeyValue>>();
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/* Modify a key according to modifiers. */
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public static KeyValue handleFlags(KeyValue k, int flags)
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{
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if (flags == 0) // No modifier
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return k;
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SparseArray<KeyValue> ks = cacheEntry(k);
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KeyValue r = ks.get(flags);
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if (r != null) // Found in cache
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return r;
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r = k;
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r = handleFn(r, flags);
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r = handleShift(r, flags);
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r = handleAccents(r, flags);
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ks.put(flags, r);
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return r;
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}
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private static KeyValue handleAccents(KeyValue k, int flags)
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{
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if (k.char_ == KeyValue.CHAR_NONE || (flags & KeyValue.FLAGS_ACCENTS) == 0)
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return k;
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char c = handleAccentChar(k.char_, flags);
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if (c == 0 || c == k.char_)
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return k;
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return k.withCharAndSymbol(c);
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}
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private static KeyValue handleShift(KeyValue k, int flags)
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{
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if ((flags & KeyValue.FLAG_SHIFT) == 0)
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return k;
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char c = k.char_;
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if (k.char_ != KeyValue.CHAR_NONE)
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c = Character.toUpperCase(c);
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if (c == k.char_) // More rules if toUpperCase() did nothing
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switch (k.symbol)
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{
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case "→": c = '⇒'; break;
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case "←": c = '⇐'; break;
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case "<": c = '«'; break;
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case ">": c = '»'; break;
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case "“": c = '”'; break;
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default: return k;
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}
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return k.withCharAndSymbol(c);
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}
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private static char handleAccentChar(char c, int flags)
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{
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switch ((flags & KeyValue.FLAGS_ACCENTS))
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{
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case KeyValue.FLAG_ACCENT1:
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return (char)KeyCharacterMap.getDeadChar('\u02CB', c);
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case KeyValue.FLAG_ACCENT2:
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switch (c)
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{
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case '`': return '´';
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case '<': return '‘';
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case '>': return '‘';
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default: return (char)KeyCharacterMap.getDeadChar('\u00B4', c);
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}
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case KeyValue.FLAG_ACCENT3:
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return (char)KeyCharacterMap.getDeadChar('\u02C6', c);
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case KeyValue.FLAG_ACCENT4:
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switch (c)
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{
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case '?': return '¿';
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case '!': return '¡';
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default: return (char)KeyCharacterMap.getDeadChar('\u02DC', c);
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}
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case KeyValue.FLAG_ACCENT5:
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switch (c)
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{
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case 'u': return 'µ';
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case '"': return '„';
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case '\'': return '’';
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case '-': return '¬';
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case 'a': return 'æ';
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case 'o': return 'œ';
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default: return (char)KeyCharacterMap.getDeadChar('\u00B8', c);
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}
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case KeyValue.FLAG_ACCENT6:
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switch (c)
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{
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case '-': return '÷';
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default: return (char)KeyCharacterMap.getDeadChar('\u00A8', c);
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}
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case KeyValue.FLAG_ACCENT_CARON:
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switch (c)
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{
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default: return (char)KeyCharacterMap.getDeadChar('\u02C7', c);
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}
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case KeyValue.FLAG_ACCENT_RING:
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switch (c)
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{
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default: return (char)KeyCharacterMap.getDeadChar('\u02DA', c);
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}
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case KeyValue.FLAG_ACCENT_MACRON:
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switch (c)
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{
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default: return (char)KeyCharacterMap.getDeadChar('\u00AF', c);
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}
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case KeyValue.FLAG_ACCENT_SUPERSCRIPT:
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switch (c)
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{
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case '1': return '¹';
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case '2': return '²';
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case '3': return '³';
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case '4': return '⁴';
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case '5': return '⁵';
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case '6': return '⁶';
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case '7': return '⁷';
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case '8': return '⁸';
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case '9': return '⁹';
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case '0': return '⁰';
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case 'i': return 'ⁱ';
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case '+': return '⁺';
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case '-': return '⁻';
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case '=': return '⁼';
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case '(': return '⁽';
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case ')': return '⁾';
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case 'n': return 'ⁿ';
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default: return c;
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}
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case KeyValue.FLAG_ACCENT_SUBSCRIPT:
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switch (c)
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{
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case '1': return '₁';
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case '2': return '₂';
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case '3': return '₃';
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case '4': return '₄';
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case '5': return '₅';
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case '6': return '₆';
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case '7': return '₇';
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case '8': return '₈';
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case '9': return '₉';
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case '0': return '₀';
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case '+': return '₊';
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case '-': return '₋';
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case '=': return '₌';
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case '(': return '₍';
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case ')': return '₎';
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case 'e': return 'ₑ';
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case 'a': return 'ₐ';
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case 'x': return 'ₓ';
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case 'o': return 'ₒ';
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default: return c;
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}
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default: return c; // Can't happen
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}
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}
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private static KeyValue handleFn(KeyValue k, int flags)
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{
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if ((flags & KeyValue.FLAG_FN) == 0)
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return k;
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String name;
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switch (k.name)
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{
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case "1": name = "f1"; break;
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case "2": name = "f2"; break;
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case "3": name = "f3"; break;
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case "4": name = "f4"; break;
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case "5": name = "f5"; break;
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case "6": name = "f6"; break;
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case "7": name = "f7"; break;
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case "8": name = "f8"; break;
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case "9": name = "f9"; break;
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case "0": name = "f10"; break;
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case "up": name = "page_up"; break;
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case "down": name = "page_down"; break;
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case "left": name = "home"; break;
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case "right": name = "end"; break;
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case ">": name = "→"; break;
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case "<": name = "←"; break;
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case "\"": name = "“"; break;
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case "-": name = "–"; break;
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case "_": name = "—"; break;
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case "esc": name = "insert"; break;
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case "$": name = "€"; break;
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case "#": name = "£"; break;
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case "*": name = "°"; break;
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case "tab": name = "\\t"; break;
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default: return k;
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}
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return KeyValue.getKeyByName(name);
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}
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/* Lookup the cache entry for a key. Create it needed. */
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private static SparseArray<KeyValue> cacheEntry(KeyValue k)
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{
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SparseArray<KeyValue> ks = _cache.get(k.name);
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if (ks == null)
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{
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ks = new SparseArray<KeyValue>();
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_cache.put(k.name, ks);
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}
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return ks;
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}
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}
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