Michael Richters f619f1bc78 | 4 years ago | |
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src | 4 years ago | |
README.md | 4 years ago | |
UPGRADING.md | 4 years ago | |
library.properties | 4 years ago |
README.md
Macros
Macros are a standard feature on many keyboards and Kaleidoscope-powered ones are no exceptions. Macros are a way to have a single key-press do a whole lot of things under the hood: conventionally, macros play back a key sequence, but with Kaleidoscope, there is much more we can do. Nevertheless, playing back a sequence of events is still the primary use of macros.
Playing back a sequence means that when we press a macro key, we can have it play pretty much any sequence. It can type some text for us, or invoke a complicated shortcut - the possibilities are endless!
In Kaleidoscope, macros are implemented via this plugin. You can define upto 256 macros.
Using the plugin
To use the plugin, we need to include the header, tell the firmware to use
the
plugin, place macros on the keymap, and create a special handler function
(macroAction
) that will tell the plugin what shall happen when macro keys are
pressed. It is best illustrated with an example:
#include <Kaleidoscope.h>
#include <Kaleidoscope-Macros.h>
// Give a name to the macros!
enum {
MACRO_MODEL01,
MACRO_HELLO,
MACRO_SPECIAL,
};
// Somewhere in the keymap:
M(MACRO_MODEL01), M(MACRO_HELLO), M(MACRO_SPECIAL)
// later in the Sketch:
const macro_t *macroAction(uint8_t macro_id, KeyEvent &event) {
switch (macro_id) {
case MACRO_MODEL01:
if (keyToggledOn(event.state)) {
return MACRO(I(25),
D(LeftShift), T(M), U(LeftShift), T(O), T(D), T(E), T(L),
T(Spacebar),
W(100),
T(0), T(1) );
}
break;
case MACRO_HELLO:
if (keyToggledOn(event.state)) {
return Macros.type(PSTR("Hello "), PSTR("world!"));
}
break;
case MACRO_SPECIAL:
if (keyToggledOn(event.state)) {
// Do something special
}
break;
}
return MACRO_NONE;
}
KALEIDOSCOPE_INIT_PLUGINS(Macros);
void setup() {
Kaleidoscope.setup ();
}
Keymap markup
M(id)
Places a macro key on the keymap, with the
id
number (0 to 255) as identifier. Whenever this key has to be handled, themacroAction
overrideable function will be called, with the identifier and key state as arguments.It is recommended to give a name to macro ids, by using an
enum
.
Plugin methods
The plugin provides a Macros
object, with the following methods and properties available:
.play(macro)
Plays back a macro, where a macro is a sequence created with the
MACRO()
helper discussed below. This method will be used by the plugin to play back the result of themacroAction()
method, but is used rarely otherwise.The
macro
argument must be a sequence created with theMACRO()
helper! For example:Macros.play(MACRO(D(LeftControl), D(LeftAlt), D(Spacebar), U(LeftControl), U(LeftAlt), U(Spacebar)));
.type(strings...)
In cases where we only want to type some strings, it is far more convenient to use this method: we do not have to use the
MACRO()
helper, but just give this one a set of strings, and it will type them for us on the keyboard. We can use as many strings as we want, and all of them will be typed in order.Each string is limited to a sequence of printable ASCII characters. No international symbols, or unicode, or anything like it: just plain ASCII.
Each of
strings
arguments must also reside in program memory, and the easiest way to do that is to wrap the string in aPSTR()
helper. See the program code at the beginning of this documentation for an example!
.press(key)
/.release(key)
Used in
Macros.play()
, these methods press virtual keys in a small supplementalKey
array for the purpose of keeping keys active for complex macro sequences where it's important to have overlapping key presses.
Macros.press(key)
sends a key press event, and will keep that virtual key active until eitherMacros.release(key)
is called, or a Macros key is released. If you useMacros.press(key)
in a macro, but also change the value ofevent.key
, you will need to make sure to also callMacros.release(key)
at some point to prevent that key from getting "stuck" on.
.clear()
Releases all virtual keys held by macros. This both empties the supplemental
Key
array (see above) and sends a release event for each key stored there.
.tap(key)
Sends an immediate press and release event for
key
with no delay, using an invalid key address.
Macro helpers
Macros need to be able to simulate key down and key up events for any key - even
keys that may not be on the keymap otherwise. For this reason and others, we
need to define them in a special way, using the MACRO
helper.
MACRO(steps...)
Defines a macro, that is built up from
steps
(explained below). The plugin will iterate through the sequence, and re-play the steps in order.Note: In older versions of the Macros plugin, the sequence of steps had to end with a special step called END. This is no longer required. Existing macros that end with END will still work correctly, but new code should not use END; usage of END is deprecated.
MACRO
steps
Macro steps can be divided into the following groups:
Delays
I(millis)
: Sets the interval between steps tomillis
. By default, there is no delay between steps, and they are played back as fast as possible. Useful when we want to see the macro being typed, or need to slow it down, to allow the host to process it.W(millis)
: Waits formillis
milliseconds. For dramatic effects.
Key events
Key event steps have three variants: one that prefixes its argument with Key_
,
one that does not, and a third that allows for a more compact - but also more
limited - representation. The first are the D
, U
, and T
variants, the
second are Dr
, Ur
, and Tr
, and the last variant are Dc
, Uc
, and Tc
.
In most cases, one is likely use normal keys for the steps, so the D
, U
, and
T
steps apply the Key_
prefix. This allows us to write MACRO(T(X))
instead
of MACRO(Tr(Key_X))
- making the macro definition shorter, and more readable.
The "raw" variants (Dr
/Ur
/Tr
) use the full name of the Key
object,
without adding the Key_
prefix to the argument given. Tr(Key_X)
is the same
as T(X)
.
The "compact" variants (Dc
/Uc
/Tc
) prefix the argument with Key_
too,
but unlike D
, U
, and T
, they ignore the flags
component of the key, and
as such, are limited to ordinary keys. Mouse keys, consumer- or system keys are
not supported by this compact representation.
D(key)
,Dr(key)
,Dc(key)
: Simulates a key being pressed (pushed down).U(key)
,Ur(key)
,Uc(key)
: Simulates a key being released (going up).T(key)
,Tr(key)
,Tc(key)
: Simulates a key being tapped (pressed first, then released).
Key sequences
One often used case for macros is to type longer sequences of text. In these cases, assembling the macro step by step using the events described above is verbose both in source code, and compiled. For this reason, the plugin provides two other actions, both of which take a sequence of keys, and will tap all of them in order.
SEQ(K(key1), K(key2), ...)
: Simulates all the given keys being tapped in order, with the currently active interval waited between them. The keys need to be specified by their full name.SEQc(Kc(key1), Kc(key2), ...)
: Same asSEQ()
, but the keys are prefixed withKey_
, and they ignore theflags
component of a key, and as such, are limited to ordinary keys.
Overrideable functions
macroAction(uint8_t macro_id, KeyEvent &event)
The
macroAction
method is the brain of the macro support in Kaleidoscope: this function tells the plugin what sequence to play when given a macro index and a key state.It should return a macro sequence, or
MACRO_NONE
if nothing is to be played back.
Limitations
Due to technical and practical reasons, Macros.type()
assumes a QWERTY layout
on the host side, and so do all other parts that work with keycodes. If your
operating system is set to a different layout, the strings and keycodes will
need to be adjusted accordingly.