Rearrange the file layout in preparation of becoming a monorepo

Move the documentation to `doc/plugin/Heatmap.md`, sources under
`src/kaleidoscope/plugin/` (appropriately namespaced). This is in preparation of
merging plugins into a single monorepo.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

README.md

@@ -5,90 +5,4 @@
  [travis:image]: https://travis-ci.org/keyboardio/Kaleidoscope-Heatmap.svg?branch=master
  [travis:status]: https://travis-ci.org/keyboardio/Kaleidoscope-Heatmap
 
-The `Heatmap` plugin provides a LED effect, that displays a heatmap on the
-keyboard. The LEDs under each key will have a color according to how much use
-they see. Fewer used keys will have deep blue colors, that gradually turns
-lighter, then green, to yellow, and finally red for the most used keys. The
-heatmap is not updated on every key press, but periodically. It's precision is
-also an approximation, and not a hundred percent exact. Nevertheless, it is a
-reasonable estimate.
-
-## Using the plugin
-
-The plugin comes with reasonable defaults pre-configured, all one needs to do is
-include the header, and make sure the plugin is in use:
-
-```c++
-#include <Kaleidoscope.h>
-#include <Kaleidoscope-LEDControl.h>
-#include <Kaleidoscope-Heatmap.h>
-
-static const cRGB heat_colors[] PROGMEM = {
-  {  0,   0,   0}, // black
-  {255,  25,  25}, // blue
-  { 25, 255,  25}, // green
-  { 25,  25, 255}  // red
-};
-
-KALEIDOSCOPE_INIT_PLUGINS(LEDControl, HeatmapEffect);
-
-void setup() {
-  Kaleidoscope.setup ();
-
-  HeatmapEffect.heat_colors = heat_colors;
-  HeatmapEffect.heat_colors_length = 4;
-}
-```
-
-This sets up the heatmap to update every second (by default). It also registers
-a new LED effect, which means that if you have not set up any other effects,
-then Heatmap will likely be the default. You may not want that, so setting up
-at least one other LED effect, such as `LEDOff` is highly recommended.
-
-## Plugin methods
-
-The plugin provides a `HeatmapEffect` object, which has the following methods
-and properties:
-
-### `.activate()`
-
-> When called, immediately activates the Heatmap effect. Mostly useful in the
-> `setup()` method of the Sketch, or in macros that are meant to switch to the
-> heatmap effect, no matter where we are in the list.
-
-### `.update_delay`
-
-> The number of milliseconds to wait between updating the heatmap. Updating the
-> heatmap incurs a significant performance penalty, and should not be done too
-> often. Doing it too rarely, on the other hand, make it much less useful. One
-> has to strike a reasonable balance.
->
-> Defaults to *1000*.
-
-### `.heat_colors`
-
-> A cRGB array describing the gradian of colors that will be used, from colder
-> to hoter keys.
-> E.g. with `heat_colors = {{100, 0,  0}, {0, 100,  0}, {0,  0, 100}}`, a key
-> with a temperature of 0.8 (0=coldest, 1=hotest), will end up with a color
-> `{0, 40, 60}`.
->
-> Defaults to `{{0, 0, 0}, {25, 255, 25}, {25, 255, 255}, {25, 25, 255}}`
-> (black, green, yellow, red)
-
-### `.heat_colors_length`
-
-> Length of the `heat_colors` array.
->
-> Defaults to *4*
-
-## Dependencies
-
-* [Kaleidoscope-LEDControl](https://github.com/keyboardio/Kaleidoscope-LEDControl)
-
-## Further reading
-
-Starting from the [example][plugin:example] is the recommended way of getting
-started with the plugin.
-
- [plugin:example]: https://github.com/keyboardio/Kaleidoscope-Heatmap/blob/master/examples/Heatmap/Heatmap.ino
+See [doc/plugin/Heatmap.md](doc/plugin/Heatmap.md) for documentation.

doc/plugin/Heatmap.md

@@ -0,0 +1,89 @@
+# Kaleidoscope-Heatmap
+
+The `Heatmap` plugin provides a LED effect, that displays a heatmap on the
+keyboard. The LEDs under each key will have a color according to how much use
+they see. Fewer used keys will have deep blue colors, that gradually turns
+lighter, then green, to yellow, and finally red for the most used keys. The
+heatmap is not updated on every key press, but periodically. It's precision is
+also an approximation, and not a hundred percent exact. Nevertheless, it is a
+reasonable estimate.
+
+## Using the plugin
+
+The plugin comes with reasonable defaults pre-configured, all one needs to do is
+include the header, and make sure the plugin is in use:
+
+```c++
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-LEDControl.h>
+#include <Kaleidoscope-Heatmap.h>
+
+static const cRGB heat_colors[] PROGMEM = {
+  {  0,   0,   0}, // black
+  {255,  25,  25}, // blue
+  { 25, 255,  25}, // green
+  { 25,  25, 255}  // red
+};
+
+KALEIDOSCOPE_INIT_PLUGINS(LEDControl, HeatmapEffect);
+
+void setup() {
+  Kaleidoscope.setup ();
+
+  HeatmapEffect.heat_colors = heat_colors;
+  HeatmapEffect.heat_colors_length = 4;
+}
+```
+
+This sets up the heatmap to update every second (by default). It also registers
+a new LED effect, which means that if you have not set up any other effects,
+then Heatmap will likely be the default. You may not want that, so setting up
+at least one other LED effect, such as `LEDOff` is highly recommended.
+
+## Plugin methods
+
+The plugin provides a `HeatmapEffect` object, which has the following methods
+and properties:
+
+### `.activate()`
+
+> When called, immediately activates the Heatmap effect. Mostly useful in the
+> `setup()` method of the Sketch, or in macros that are meant to switch to the
+> heatmap effect, no matter where we are in the list.
+
+### `.update_delay`
+
+> The number of milliseconds to wait between updating the heatmap. Updating the
+> heatmap incurs a significant performance penalty, and should not be done too
+> often. Doing it too rarely, on the other hand, make it much less useful. One
+> has to strike a reasonable balance.
+>
+> Defaults to *1000*.
+
+### `.heat_colors`
+
+> A cRGB array describing the gradian of colors that will be used, from colder
+> to hoter keys.
+> E.g. with `heat_colors = {{100, 0,  0}, {0, 100,  0}, {0,  0, 100}}`, a key
+> with a temperature of 0.8 (0=coldest, 1=hotest), will end up with a color
+> `{0, 40, 60}`.
+>
+> Defaults to `{{0, 0, 0}, {25, 255, 25}, {25, 255, 255}, {25, 25, 255}}`
+> (black, green, yellow, red)
+
+### `.heat_colors_length`
+
+> Length of the `heat_colors` array.
+>
+> Defaults to *4*
+
+## Dependencies
+
+* [Kaleidoscope-LEDControl](https://github.com/keyboardio/Kaleidoscope-LEDControl)
+
+## Further reading
+
+Starting from the [example][plugin:example] is the recommended way of getting
+started with the plugin.
+
+ [plugin:example]: https://github.com/keyboardio/Kaleidoscope-Heatmap/blob/master/examples/Heatmap/Heatmap.ino

src/Kaleidoscope-Heatmap.h

@@ -18,4 +18,4 @@
 
 #pragma once
 
-#include <Kaleidoscope/Heatmap.h>
+#include <kaleidoscope/plugin/Heatmap.h>

src/kaleidoscope/plugin/Heatmap.cpp

@@ -20,6 +20,7 @@
 #include <Kaleidoscope-Heatmap.h>
 
 namespace kaleidoscope {
+namespace plugin {
 
 // store the number of times each key has been strock
 uint16_t Heatmap::heatmap_[ROWS][COLS];
@@ -198,6 +199,7 @@ void Heatmap::update(void) {
   }
 }
 
+}
 }
 
-kaleidoscope::Heatmap HeatmapEffect;
+kaleidoscope::plugin::Heatmap HeatmapEffect;

src/kaleidoscope/plugin/Heatmap.h

@@ -22,6 +22,7 @@
 #include <Kaleidoscope-LEDControl.h>
 
 namespace kaleidoscope {
+namespace plugin {
 class Heatmap : public LEDMode {
  public:
   Heatmap(void) {}
@@ -46,5 +47,6 @@ class Heatmap : public LEDMode {
   static cRGB computeColor(float v);
 };
 }
+}
 
-extern kaleidoscope::Heatmap HeatmapEffect;
+extern kaleidoscope::plugin::Heatmap HeatmapEffect;