battery-minus

commit 75d6b0f5d316d796140a211a84260cd7bf739988
parent 320d03e021e806c61d799f1e5c01f22a3148555e
Author: Natasha Kerensikova <natacha@instinctive.eu>
Date:   Tue, 22 Dec 2015 21:47:04 +0000

Add basic UI code
Diffstat:
A
src/battery-minus.c
 | 
206
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 206 insertions(+), 0 deletions(-)
diff --git a/src/battery-minus.c b/src/battery-minus.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2015, Natacha Porté
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <pebble.h>
+#include "storage.h"
+
+static Window *window;
+static SimpleMenuLayer *menu_layer;
+static SimpleMenuSection menu_section;
+static SimpleMenuItem menu_items[PAGE_LENGTH];
+
+static struct event current_page[PAGE_LENGTH];
+static const char *titles[PAGE_LENGTH];
+static const char *dates[PAGE_LENGTH];
+
+/*************
+ * MENU ITEM *
+ *************/
+
+#define SET_BUF(dest, src) (strcpy(dest, src ""), (int)(sizeof src) - 1)
+
+static const char *
+strdup(char *buffer) {
+	size_t length = strlen(buffer);
+	char *result = malloc(length + 1);
+	if (result) memcpy(result, buffer, length + 1);
+	return result;
+}
+
+static void
+init_strings(void) {
+	char buffer[256];
+	int ret;
+	struct tm *tm;
+	unsigned j;
+
+	for (j = 1;
+	    j < PAGE_LENGTH && current_page[j - 1].time < current_page[j].time;
+	    j += 1);
+	if (j >= PAGE_LENGTH || !current_page[j].time) j = 0;
+
+	for (unsigned i = 0; i < PAGE_LENGTH; i += 1) {
+		if (!current_page[j].time) {
+			titles[i] = dates[i] = 0;
+			continue;
+		}
+
+		tm = localtime(&current_page[j].time);
+		ret = strftime(buffer, sizeof buffer, "%Y-%m-%d %H:%M:%S", tm);
+		dates[i] = ret ? strdup(buffer) : 0;
+
+		switch (current_page[j].before) {
+		    case UNKNOWN:
+			snprintf(buffer, sizeof buffer,
+			    "%u%%%c",
+			    (unsigned)(current_page[j].after & 0x7f),
+			    (current_page[j].after & 0x80) ? '+' : '-');
+			break;
+
+		    case APP_STARTED:
+			snprintf(buffer, sizeof buffer,
+			    "Start %u%%%c",
+			    (unsigned)(current_page[j].after & 0x7f),
+			    (current_page[j].after & 0x80) ? '+' : '-');
+			break;
+
+		    case APP_CLOSED:
+			snprintf(buffer, sizeof buffer,
+			    "Close %u%%%c",
+			    (unsigned)(current_page[j].after & 0x7f),
+			    (current_page[j].after & 0x80) ? '+' : '-');
+			break;
+
+		    case ANOMALOUS_VALUE:
+			snprintf(buffer, sizeof buffer,
+			    "Anomalous %u",
+			    (unsigned)(current_page[j].after));
+			break;
+
+		    default:
+			if ((current_page[j].before & 0x80)
+			    == (current_page[j].after & 0x80)) {
+				snprintf(buffer, sizeof buffer,
+				    "%u%% %c> %u%%",
+				    (unsigned)(current_page[j].before & 0x7f),
+				    (current_page[j].after & 0x80) ? '+' : '-',
+				    (unsigned)(current_page[j].after & 0x7f));
+				break;
+			}
+
+			if ((current_page[j].before & 0x7f)
+			    == (current_page[j].after & 0x7f))
+				snprintf (buffer, sizeof buffer,
+				    "%s %u%%",
+				    (current_page[j].after & 0x80)
+				    ? "Charge" : "Discharge",
+				    (unsigned)(current_page[j].after & 0x7f));
+			else
+				snprintf (buffer, sizeof buffer,
+				    "%s %u%% -> %u%%",
+				    (current_page[j].after & 0x80)
+				    ? "Chg" : "Disch",
+				    (unsigned)(current_page[j].before & 0x7f),
+				    (unsigned)(current_page[j].after & 0x7f));
+			break;
+		}
+
+		titles[i] = strdup(buffer);
+
+		j = (j + 1) % PAGE_LENGTH;
+	}
+}
+
+/*********************
+ * WINDOW MANAGEMENT *
+ *********************/
+
+static void
+window_load(Window *window) {
+	Layer *window_layer = window_get_root_layer(window);
+	GRect bounds = layer_get_bounds(window_layer);
+	unsigned i = PAGE_LENGTH;
+
+	menu_section.title = 0;
+	menu_section.items = menu_items;
+	menu_section.num_items = 0;
+
+	while (i) {
+		i -= 1;
+		if (!titles[i]) continue;
+		menu_items[menu_section.num_items].title = titles[i];
+		menu_items[menu_section.num_items].subtitle = dates[i];
+		menu_items[menu_section.num_items].icon = 0;
+		menu_items[menu_section.num_items].callback = 0;
+		menu_section.num_items += 1;
+	}
+
+	if (!menu_section.num_items) {
+		menu_items[0].title = "No event recorded";
+		menu_items[0].subtitle = 0;
+		menu_items[0].icon = 0;
+		menu_items[0].callback = 0;
+		menu_section.num_items = 1;
+	}
+
+	menu_layer = simple_menu_layer_create(bounds, window,
+	    &menu_section, 1, 0);
+
+	layer_add_child(window_layer, simple_menu_layer_get_layer(menu_layer));
+}
+
+static void
+window_unload(Window *window) {
+	simple_menu_layer_destroy(menu_layer);
+}
+
+/**********************************
+ * INTIALIZATION AND FINALIZATION *
+ **********************************/
+
+static void
+init(void) {
+	persist_read_data(1, current_page, sizeof current_page);
+
+	init_strings();
+
+	window = window_create();
+	window_set_window_handlers(window, (WindowHandlers) {
+	    .load = window_load,
+	    .unload = window_unload,
+	});
+	window_stack_push(window, true);
+}
+
+static void
+deinit(void) {
+	window_destroy(window);
+
+	for (unsigned i = 0; i < PAGE_LENGTH; i += 1) {
+		if (titles[i]) free((void *)titles[i]);
+		titles[i] = 0;
+
+		if (dates[i]) free((void *)dates[i]);
+		dates[i] = 0;
+	}
+}
+
+int
+main(void) {
+	init();
+	app_event_loop();
+	deinit();
+}