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package juloo.keyboard2;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import java.util.HashMap;
class KeyModifier
{
/** Cache key is KeyValue's name */
private static HashMap<String, HashMap<Pointers.Modifiers, KeyValue>> _cache =
new HashMap<String, HashMap<Pointers.Modifiers, KeyValue>>();
/** Represents a removed key, because a cache entry can't be [null]. */
private static final KeyValue removed_key = KeyValue.getKeyByName("removed");
/** Modify a key according to modifiers. */
public static KeyValue modify(KeyValue k, Pointers.Modifiers mods)
{
if (k == null)
return null;
int n_mods = mods.size();
HashMap<Pointers.Modifiers, KeyValue> ks = cacheEntry(k);
KeyValue r = ks.get(mods);
if (r == null)
{
r = k;
/* Order: Fn, Shift, accents */
for (int i = 0; i < n_mods; i++)
r = modify(r, mods.get(i));
r = remove_placeholders(r);
ks.put(mods, r);
}
return (r == removed_key) ? null : r;
}
public static KeyValue modify(KeyValue k, int mod)
{
switch (mod)
{
case KeyValue.MOD_FN: return apply_fn(k);
case KeyValue.MOD_SHIFT: return apply_shift(k);
case KeyValue.MOD_GRAVE: return apply_dead_char(k, '\u02CB');
case KeyValue.MOD_AIGU: return apply_dead_char(k, '\u00B4');
case KeyValue.MOD_CIRCONFLEXE: return apply_dead_char(k, '\u02C6');
case KeyValue.MOD_TILDE: return apply_dead_char(k, '\u02DC');
case KeyValue.MOD_CEDILLE: return apply_dead_char(k, '\u00B8');
case KeyValue.MOD_TREMA: return apply_dead_char(k, '\u00A8');
case KeyValue.MOD_CARON: return apply_dead_char(k, '\u02C7');
case KeyValue.MOD_RING: return apply_dead_char(k, '\u02DA');
case KeyValue.MOD_MACRON: return apply_dead_char(k, '\u00AF');
case KeyValue.MOD_OGONEK: return apply_dead_char(k, '\u02DB');
case KeyValue.MOD_DOT_ABOVE: return apply_dead_char(k, '\u02D9');
case KeyValue.MOD_DOUBLE_AIGU:
return maybe_modify_char(k, map_char_double_aigu(k.char_));
case KeyValue.MOD_ORDINAL:
return maybe_modify_char(k, map_char_ordinal(k.char_));
case KeyValue.MOD_SUPERSCRIPT:
return maybe_modify_char(k, map_char_superscript(k.char_));
case KeyValue.MOD_SUBSCRIPT:
return maybe_modify_char(k, map_char_subscript(k.char_));
case KeyValue.MOD_ARROWS:
return maybe_modify_char(k, map_char_arrows(k.char_));
case KeyValue.MOD_BOX:
return maybe_modify_char(k, map_char_box(k.char_));
default: return k;
}
}
private static KeyValue apply_dead_char(KeyValue k, char dead_char)
{
char c = k.char_;
if (c != KeyValue.CHAR_NONE)
c = (char)KeyCharacterMap.getDeadChar(dead_char, c);
return maybe_modify_char(k, c);
}
private static KeyValue apply_shift(KeyValue k)
{
char c = k.char_;
if (c == KeyValue.CHAR_NONE)
return k;
c = map_char_shift(c);
if (c == k.char_)
c = Character.toUpperCase(c);
return maybe_modify_char(k, c);
}
private static KeyValue apply_fn(KeyValue k)
{
String name;
switch (k.name)
{
case "1": name = "f1"; break;
case "2": name = "f2"; break;
case "3": name = "f3"; break;
case "4": name = "f4"; break;
case "5": name = "f5"; break;
case "6": name = "f6"; break;
case "7": name = "f7"; break;
case "8": name = "f8"; break;
case "9": name = "f9"; break;
case "0": name = "f10"; break;
case "f11_placeholder": name = "f11"; break;
case "f12_placeholder": name = "f12"; break;
case "up": name = "page_up"; break;
case "down": name = "page_down"; break;
case "left": name = "home"; break;
case "right": name = "end"; break;
case "<": name = "«"; break;
case ">": name = "»"; break;
case "{": name = "‹"; break;
case "}": name = "›"; break;
case "[": name = "‘"; break;
case "]": name = "’"; break;
case "(": name = "“"; break;
case ")": name = "”"; break;
case "'": name = "‚"; break;
case "\"": name = "„"; break;
case "-": name = "–"; break;
case "_": name = "—"; break;
case "^": name = "¬"; break;
case "%": name = "‰"; break;
case "=": name = "≈"; break;
case "u": name = "µ"; break;
case "a": name = "æ"; break;
case "o": name = "œ"; break;
case "esc": name = "insert"; break;
case "*": name = "°"; break;
case ".": name = "…"; break;
case ",": name = "·"; break;
case "!": name = "¡"; break;
case "?": name = "¿"; break;
case "tab": name = "\\t"; break;
case "space": name = "nbsp"; break;
case "↖": name = "⇖"; break;
case "↑": name = "⇑"; break;
case "↗": name = "⇗"; break;
case "←": name = "⇐"; break;
case "→": name = "⇒"; break;
case "↙": name = "⇙"; break;
case "↓": name = "⇓"; break;
case "↘": name = "⇘"; break;
// Currency symbols
case "e": name = "€"; break;
case "l": name = "£"; break;
case "r": name = "₹"; break;
case "y": name = "¥"; break;
case "c": name = "¢"; break;
case "p": name = "₱"; break;
case "€": case "£": return removed_key; // Avoid showing these twice
default: return k;
}
return KeyValue.getKeyByName(name);
}
/** Remove placeholder keys that haven't been modified into something. */
private static KeyValue remove_placeholders(KeyValue k)
{
switch (k.name)
{
case "f11_placeholder":
case "f12_placeholder": return removed_key;
default: return k;
}
}
/** Helper, update [k] with the char [c] if it's not [0]. */
private static KeyValue maybe_modify_char(KeyValue k, char c)
{
if (c == 0 || c == KeyValue.CHAR_NONE || c == k.char_)
return k;
return k.withCharAndSymbol(c);
}
/* Lookup the cache entry for a key. Create it needed. */
private static HashMap<Pointers.Modifiers, KeyValue> cacheEntry(KeyValue k)
{
HashMap<Pointers.Modifiers, KeyValue> ks = _cache.get(k.name);
if (ks == null)
{
ks = new HashMap<Pointers.Modifiers, KeyValue>();
_cache.put(k.name, ks);
}
return ks;
}
private static char map_char_shift(char c)
{
switch (c)
{
case '↙': return '⇙';
case '↓': return '⇓';
case '↘': return '⇘';
case '←': return '⇐';
case '→': return '⇒';
case '↖': return '⇖';
case '↑': return '⇑';
case '↗': return '⇗';
case '└': return '╚';
case '┴': return '╩';
case '┘': return '╝';
case '├': return '╠';
case '┼': return '╬';
case '┤': return '╣';
case '┌': return '╔';
case '┬': return '╦';
case '┐': return '╗';
case '─': return '═';
case '│': return '║';
default: return c;
}
}
private static char map_char_double_aigu(char c)
{
switch (c)
{
// Composite characters: a̋ e̋ i̋ m̋ ӳ
case 'o': return 'ő';
case 'u': return 'ű';
case ' ': return '˝';
default: return c;
}
}
private static char map_char_ordinal(char c)
{
switch (c)
{
case 'a': return 'ª';
case 'o': return 'º';
case '1': return 'ª';
case '2': return 'º';
case '3': return 'ⁿ';
case '4': return 'ᵈ';
case '5': return 'ᵉ';
case '6': return 'ʳ';
case '7': return 'ˢ';
case '8': return 'ᵗ';
case '9': return 'ʰ';
case '*': return '°';
default: return c;
}
}
private static char map_char_superscript(char c)
{
switch (c)
{
case '1': return '¹';
case '2': return '²';
case '3': return '³';
case '4': return '⁴';
case '5': return '⁵';
case '6': return '⁶';
case '7': return '⁷';
case '8': return '⁸';
case '9': return '⁹';
case '0': return '⁰';
case 'i': return 'ⁱ';
case '+': return '⁺';
case '-': return '⁻';
case '=': return '⁼';
case '(': return '⁽';
case ')': return '⁾';
case 'n': return 'ⁿ';
default: return c;
}
}
private static char map_char_subscript(char c)
{
switch (c)
{
case '1': return '₁';
case '2': return '₂';
case '3': return '₃';
case '4': return '₄';
case '5': return '₅';
case '6': return '₆';
case '7': return '₇';
case '8': return '₈';
case '9': return '₉';
case '0': return '₀';
case '+': return '₊';
case '-': return '₋';
case '=': return '₌';
case '(': return '₍';
case ')': return '₎';
case 'e': return 'ₑ';
case 'a': return 'ₐ';
case 'x': return 'ₓ';
case 'o': return 'ₒ';
default: return c;
}
}
private static char map_char_arrows(char c)
{
switch (c)
{
case '1': return '↙';
case '2': return '↓';
case '3': return '↘';
case '4': return '←';
case '6': return '→';
case '7': return '↖';
case '8': return '↑';
case '9': return '↗';
default: return c;
}
}
private static char map_char_box(char c)
{
switch (c)
{
case '1': return '└';
case '2': return '┴';
case '3': return '┘';
case '4': return '├';
case '5': return '┼';
case '6': return '┤';
case '7': return '┌';
case '8': return '┬';
case '9': return '┐';
case '0': return '─';
case '.': return '│';
default: return c;
}
}
}
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