[Keymap] Jarred's Plaid keymap (#6049)

[qmk_firmware.git] / quantum / process_keycode / process_unicodemap.c

diff --git a/quantum/process_keycode/process_unicodemap.c b/quantum/process_keycode/process_unicodemap.c
index b8cdeaa97937af373cc0f1c3b5ac3b306a24e236..b887879860656180b6592145de387d90c76b4f4f 100644 (file)
--- a/quantum/process_keycode/process_unicodemap.c
+++ b/quantum/process_keycode/process_unicodemap.c
@@ -1,54 +1,78 @@
-#include "process_unicode_map.h"
+/* Copyright 2017 Jack Humbert
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
-__attribute__((weak))
-const uint32_t PROGMEM unicode_map[] = {
-};
+#include "process_unicodemap.h"
 
 void register_hex32(uint32_t hex) {
-  uint8_t onzerostart = 1;
+  bool onzerostart = true;
   for(int i = 7; i >= 0; i--) {
     if (i <= 3) {
-      onzerostart = 0;
+      onzerostart = false;
     }
     uint8_t digit = ((hex >> (i*4)) & 0xF);
     if (digit == 0) {
-      if (onzerostart == 0) {
+      if (!onzerostart) {
         register_code(hex_to_keycode(digit));
         unregister_code(hex_to_keycode(digit));
       }
     } else {
       register_code(hex_to_keycode(digit));
       unregister_code(hex_to_keycode(digit));
-      onzerostart = 0;
+      onzerostart = false;
     }
   }
 }
 
 __attribute__((weak))
-void unicode_map_input_error() {}
-
-bool process_unicode_map(uint16_t keycode, keyrecord_t *record) {
-  if ((keycode & QK_UNICODE_MAP) == QK_UNICODE_MAP && record->event.pressed) {
-    const uint32_t* map = unicode_map;
-    uint16_t index = keycode - QK_UNICODE_MAP;
-    uint32_t code = pgm_read_dword_far(&map[index]);
-    if (code > 0xFFFF && code <= 0x10ffff && input_mode == UC_OSX) {
-      // Convert to UTF-16 surrogate pair
+uint16_t unicodemap_index(uint16_t keycode) {
+  if (keycode >= QK_UNICODEMAP_PAIR) {
+    // Keycode is a pair: extract index based on Shift / Caps Lock state
+    uint16_t index = keycode - QK_UNICODEMAP_PAIR;
+
+    bool shift = unicode_saved_mods & MOD_MASK_SHIFT, caps = IS_HOST_LED_ON(USB_LED_CAPS_LOCK);
+    if (shift ^ caps) { index >>= 7; }
+
+    return index & 0x7F;
+  } else {
+    // Keycode is a regular index
+    return keycode - QK_UNICODEMAP;
+  }
+}
+
+bool process_unicodemap(uint16_t keycode, keyrecord_t *record) {
+  if (keycode >= QK_UNICODEMAP && keycode <= QK_UNICODEMAP_PAIR_MAX && record->event.pressed) {
+    unicode_input_start();
+
+    uint32_t code = pgm_read_dword(unicode_map + unicodemap_index(keycode));
+    uint8_t input_mode = get_unicode_input_mode();
+
+    if (code > 0x10FFFF || (code > 0xFFFF && input_mode == UC_WIN)) {
+      // Character is out of range supported by the platform
+      unicode_input_cancel();
+    } else if (code > 0xFFFF && input_mode == UC_OSX) {
+      // Convert to UTF-16 surrogate pair on Mac
       code -= 0x10000;
-      uint32_t lo = code & 0x3ff;
-      uint32_t hi = (code & 0xffc00) >> 10;
-      unicode_input_start();
-      register_hex32(hi + 0xd800);
-      register_hex32(lo + 0xdc00);
+      uint32_t lo = code & 0x3FF, hi = (code & 0xFFC00) >> 10;
+      register_hex32(hi + 0xD800);
+      register_hex32(lo + 0xDC00);
       unicode_input_finish();
-    } else if ((code > 0x10ffff && input_mode == UC_OSX) || (code > 0xFFFFF && input_mode == UC_LNX)) {
-      // when character is out of range supported by the OS
-      unicode_map_input_error();
     } else {
-      unicode_input_start();
       register_hex32(code);
       unicode_input_finish();
     }
   }
   return true;
-}
\ No newline at end of file
+}