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/*
* MIT License
*
* Copyright (c) 2022 Joey Castillo
*
* 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.
*/
#include <stdlib.h>
#include <string.h>
#include "hello_there_face.h"
#include "watch.h"
void hello_there_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
// These next two lines just silence the compiler warnings associated with unused parameters.
// We have no use for the settings or the watch_face_index, so we make that explicit here.
(void) settings;
(void) watch_face_index;
// At boot, context_ptr will be NULL indicating that we don't have anyplace to store our context.
if (*context_ptr == NULL) {
// in this case, we allocate an area of memory sufficient to store the stuff we need to track.
*context_ptr = malloc(sizeof(hello_there_state_t));
}
}
void hello_there_face_activate(movement_settings_t *settings, void *context) {
// same as above: silence the warning, we don't need to check the settings.
(void) settings;
// we do however need to set some things in our context. Here we cast it to the correct type...
hello_there_state_t *state = (hello_there_state_t *)context;
// ...and set the initial state of our watch face. We start out displaying the word 'Hello',
state->current_word = 0;
// and animate by default.
state->animating = true;
}
bool hello_there_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
(void) settings;
hello_there_state_t *state = (hello_there_state_t *)context;
switch (event.event_type) {
case EVENT_ACTIVATE:
case EVENT_TICK:
// on activate and tick, if we are animating,
if (state->animating) {
// we display the current word,
if (state->current_word == 0) watch_display_string("Hello ", 4);
else watch_display_string(" there", 4);
// and increment it so that it will update on the next tick.
state->current_word = (state->current_word + 1) % 2;
}
break;
case EVENT_LIGHT_BUTTON_UP:
// when the user presses 'light', we illuminate the LED. We could override this if
// our UI needed an additional button for input, consuming the light button press
// but not illuminating the LED.
movement_illuminate_led();
break;
case EVENT_MODE_BUTTON_UP:
// when the user presses 'mode', we tell movement to move to the next watch face.
// movement will call our resign function, clear the screen, and transfer control
// to the next watch face in the list.
movement_move_to_next_face();
break;
case EVENT_ALARM_BUTTON_UP:
// when the user presses 'alarm', we toggle the state of the animation. If animating,
// we stop; if stopped, we resume.
state->animating = !state->animating;
break;
case EVENT_LOW_ENERGY_UPDATE:
// This low energy mode update occurs once a minute, if the watch face is in the
// foreground when Movement enters low energy mode. We have the option of supporting
// this mode, but since our watch face animates once a second, the "Hello there" face
// isn't very useful in this mode. So we choose not to support it. (continued below)
break;
case EVENT_TIMEOUT:
// ... Instead, we respond to the timeout event. This event happens after a configurable
// interval on screen (1-30 minutes). The watch will give us this event as a chance to
// resign control if we want to, and in this case, we do.
// This function will return the watch to the first screen (usually a simple clock),
// and it will do it long before the watch enters low energy mode. This ensures we
// won't be on screen, and thus opts us out of getting the EVENT_LOW_ENERGY_UPDATE above.
movement_move_to_face(0);
default:
break;
}
return true;
}
void hello_there_face_resign(movement_settings_t *settings, void *context) {
// our watch face, like most watch faces, has nothing special to do when resigning.
// watch faces that enable a peripheral or interact with a sensor may want to turn it off here.
(void) settings;
(void) context;
}
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