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/*
* MIT License
*
* Copyright (c) 2022 Mikhail Svarichevsky
*
* 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.
*
* Displays some pre-defined data that you might want to remember. Math constants, birthdays, phone numbers...
*/
#include <stdlib.h>
#include <string.h>
#include "databank_face.h"
#include "watch.h"
#include "watch_private_display.h"
const char *pi_data[] = {
"PI", "314159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196442",
"S ", "9192631770",
"31", "2147483648",
"32", "4294967296",
"63", "9223372036854775808",
"64", "18446744073709551616",
};
//we show 6 characters per screen
const int databank_num_pages = (sizeof(pi_data) / sizeof(char*) / 2);
struct {
uint8_t current_word;
uint8_t databank_page;
bool animating;
} databank_state;
void databank_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) context_ptr;
(void) watch_face_index;
// At boot, context_ptr will be NULL indicating that we don't have anyplace to store our context.
}
void databank_face_activate(movement_settings_t *settings, void *context) {
// same as above: silence the warning, we don't need to check the settings.
(void) settings;
(void) context;
// we do however need to set some things in our context. Here we cast it to the correct type...
databank_state.current_word = 0;
databank_state.animating = true;
}
static void display()
{
char buf[14];
int page = databank_state.current_word;
sprintf(buf, "%s%2d", pi_data[databank_state.databank_page * 2 + 0], page);
watch_display_string(buf, 0);
bool data_ended = false;
for (int i = 0; i < 6; i++) {
if (pi_data[databank_state.databank_page * 2 + 1][page * 6 + i] == 0) {
data_ended = true;
}
if (!data_ended) {
watch_display_character(pi_data[databank_state.databank_page * 2 + 1][page * 6 + i], 4 + i);
} else {
// only 6 digits per page
watch_display_character(' ', 4 + i);
}
}
}
bool databank_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
int max_words = (strlen(pi_data[databank_state.databank_page * 2 + 1]) - 1) / 6 + 1;
switch (event.event_type) {
case EVENT_ACTIVATE:
display();
case EVENT_TICK:
// on activate and tick, if we are animating,
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.
databank_state.current_word = (databank_state.current_word + max_words - 1) % max_words;
display();
break;
case EVENT_LIGHT_LONG_PRESS:
databank_state.databank_page = (databank_state.databank_page + databank_num_pages - 1) % databank_num_pages;
databank_state.current_word = 0;
display();
break;
case EVENT_ALARM_LONG_PRESS:
databank_state.databank_page = (databank_state.databank_page + 1) % databank_num_pages;
databank_state.current_word = 0;
display();
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.
databank_state.current_word = (databank_state.current_word + 1) % max_words;
display();
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);
break;
default:
movement_default_loop_handler(event, settings);
break;
}
return true;
}
void databank_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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