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authorJoey Castillo <joeycastillo@utexas.edu>2022-01-25 17:04:07 -0500
committerJoey Castillo <joeycastillo@utexas.edu>2022-01-25 17:04:07 -0500
commit2e345d9f664e83ef88e889f7fc6e74a700dafd31 (patch)
tree3ac24ea6e1facad9be32bff888f0b6acef6d2303 /movement/watch_faces/demos/hello_there_face.c
parentfcfb651c113f30d0884f431e8674878077044d03 (diff)
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movement: slight reorganization
Diffstat (limited to 'movement/watch_faces/demos/hello_there_face.c')
-rw-r--r--movement/watch_faces/demos/hello_there_face.c112
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diff --git a/movement/watch_faces/demos/hello_there_face.c b/movement/watch_faces/demos/hello_there_face.c
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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;
-}