Merge pull request #1400 from belak/belak-ergodox-theme

ergodox: initial addition of belak theme

keyboards/ergodox/keymaps/belak/LICENSE

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+MIT License
+
+Copyright (c) 2016 Kaleb Elwert
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

keyboards/ergodox/keymaps/belak/Makefile

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+TAP_DANCE_ENABLE=yes
+UNICODE_ENABLE=yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/ergodox/keymaps/belak/README.md

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+# Belak's Ergodox Layout
+
+This has been based off of [emacs\_osx\_dk](https://github.com/jackhumbert/qmk_firmware/tree/master/keyboards/ergodox/keymaps/emacs_osx_dk)
+from the main qmk repo. However, I've taken some of the ideas for the thumbs
+from [dvorak\_emacs](https://github.com/jackhumbert/qmk_firmware/tree/master/keyboards/ergodox/keymaps/dvorak_emacs)
+and tweaked it a bit based on the keycaps I have.
+
+This keyboard is intended for use in emacs (one of the main reasons for easy
+access to modifiers) but it could be useful in other instances as well.
+
+The main repo is used as a testbed, so sometimes the layout may be in a strange
+state. The qmk version should be relatively stable.
+
+## Instructions
+
+This is currently being used on a regular ergodox, but it should work fine on
+the infinity as well. Though, you may have to modify the commands to build and
+flash the firmware to match the separate halves as defined in the infinity
+documentation.
+
+If you are using this keymap in the qmk repo, you should be able to just run
+`make ergodox-belak-teensy`. If you're using this externally (I sometimes make
+changes before syncing them to qmk), use the following instructions:
+
+1. Clone the main qmk repo
+2. Clone this to `$QMK/keyboards/ergodox/keymaps/belak-external`
+3. Run `make ergodox-belak-external-teensy` from the root of the qmk repo.
+
+## Changelog
+
+Fifth Revision
+
+* Change layer keys to tap-dance keys which cycle through additional layers
+* Add a few emoji keys (in preparation for an emoji layer)
+
+Fourth Revision
+
+* Remove media layer
+* Add a layer which swaps control and gui on the thumb keys.
+* Add some basic code to save settings to the eeprom
+* Save the state of the keys swapped in the thumb in the eeprom
+
+Third Revision
+
+* Add numpad layer and remove numpad from symbols layer
+* Disable media layer
+* Add arrow keys on ijkl to the symbols layer
+* Replace ALT on held enter and held delete with GUI (for better OSX
+  compatibility, as there's already an ALT key relatively close)
+* Replace keys above enter and delete with temporary layer switch buttons not
+  matching the other layer switch for that hand.
+* Reindent and space out most of the layer definitions
+
+Second Revision
+
+* Clean up definitions to make differences between layers easier to see
+* Remove old LCD code
+* Add new LCD code based on fredizzimo's branch
+
+First Revision
+
+* Reverse grave and escape
+
+Initial Version
+
+* Copy from emacs\_osx\_dk
+* "Fix" right alt
+* Change thumb keys to match default layout (backspace, delete, enter, space)
+* Add modifiers to thumb keys (ctrl to backspace and space, alt to delete and
+  enter)
+* Replace the RAlt below the brackets with LGui and RGui
+* Remove LCtrl and RCtrl from the keys above shift
+* Add browser forward, and move browser back
+* "Fix" the order of volume keys
+
+## Repository
+
+The original code for this is kept at https://github.com/belak/ergodox-layout and
+is synced to qmk every few main revisions.

keyboards/ergodox/keymaps/belak/visualizer.c

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+/*
+Copyright 2017 Fred Sundvik
+
+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/>.
+*/
+
+// Currently we are assuming that both the backlight and LCD are enabled
+// But it's entirely possible to write a custom visualizer that use only
+// one of them
+#ifndef LCD_BACKLIGHT_ENABLE
+#error This visualizer needs that LCD backlight is enabled
+#endif
+
+#ifndef LCD_ENABLE
+#error This visualizer needs that LCD is enabled
+#endif
+
+#include "simple_visualizer.h"
+
+static void get_visualizer_layer_and_color(visualizer_state_t* state) {
+    uint8_t saturation = 60;
+    if (state->status.leds & (1u << USB_LED_CAPS_LOCK)) {
+        saturation = 255;
+    }
+
+    if (state->status.layer & 0x4) {
+        state->target_lcd_color = LCD_COLOR(0, saturation, 0xFF);
+        state->layer_text = "Media";
+    }
+    else if (state->status.layer & 0x2) {
+        state->target_lcd_color = LCD_COLOR(168, saturation, 0xFF);
+        state->layer_text = "Symbols";
+    }
+    else {
+        state->target_lcd_color = LCD_COLOR(84, saturation, 0xFF);
+        state->layer_text = "Base";
+    }
+}