battery-minus

commit 7ea437fb23701521a3b6efd0d37bf5cb16d21265
parent 301f3b158a3a007a4e0eefa66ac52d6544267f3a
Author: Natasha Kerensikova <natacha@instinctive.eu>
Date:   Mon,  1 Feb 2016 18:06:02 +0000

New module that provides a simple message window
Diffstat:
A
src/simple_dialog.c
 | 
113
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
src/simple_dialog.h
 | 
20
++++++++++++++++++++

2 files changed, 133 insertions(+), 0 deletions(-)
diff --git a/src/simple_dialog.c b/src/simple_dialog.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2016, 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 "simple_dialog.h"
+
+#define DIALOG_MESSAGE_WINDOW_MARGIN 10
+
+static void
+leave_window(ClickRecognizerRef recognizer, void *context) {
+	(void)recognizer;
+	(void)context;
+	window_stack_pop(true);
+}
+
+static void
+click_config(void *context) {
+	(void)context;
+	window_single_click_subscribe(BUTTON_ID_BACK, &leave_window);
+	window_single_click_subscribe(BUTTON_ID_UP, &leave_window);
+	window_single_click_subscribe(BUTTON_ID_SELECT, &leave_window);
+	window_single_click_subscribe(BUTTON_ID_DOWN, &leave_window);
+}
+
+static Window *dialog_window;
+static TextLayer *message_layer;
+static const char *message_text = 0;
+static bool static_message_text = true;
+
+static void
+window_load(Window *window) {
+	Layer *window_layer = window_get_root_layer(window);
+	GRect bounds = layer_get_bounds(window_layer);
+
+	message_layer = text_layer_create(GRect(DIALOG_MESSAGE_WINDOW_MARGIN,
+	    bounds.size.h / 3,
+	    bounds.size.w - (2 * DIALOG_MESSAGE_WINDOW_MARGIN),
+	    (bounds.size.h + 2) / 3));
+	text_layer_set_text(message_layer, message_text);
+	text_layer_set_text_alignment(message_layer, GTextAlignmentCenter);
+	text_layer_set_font(message_layer,
+	    fonts_get_system_font(FONT_KEY_GOTHIC_24_BOLD));
+	layer_add_child(window_layer, text_layer_get_layer(message_layer));
+}
+
+static void
+window_unload(Window *window) {
+	text_layer_destroy(message_layer);
+	message_layer = 0;
+
+	if (!static_message_text) free((void *)message_text);
+	message_text = 0;
+}
+
+static bool
+update_text(const char *original_text, bool is_static) {
+	const char *new_text = 0;
+
+	if (is_static) {
+		new_text = original_text;
+	} else {
+		size_t text_size = strlen(original_text) + 1;
+		char *buffer = malloc(text_size);
+
+		if (!buffer) {
+			APP_LOG(APP_LOG_LEVEL_ERROR, "Unable to allocate"
+			    " message text for simple dialog");
+			return false;
+		}
+
+		memcpy(buffer, original_text, text_size);
+		new_text = buffer;
+	}
+
+	if (message_layer) {
+		text_layer_set_text(message_layer, new_text);
+	}
+
+	if (!static_message_text) free((void *)message_text);
+	message_text = new_text;
+	static_message_text = is_static;
+	return true;
+}
+
+void
+push_simple_dialog(const char *message, bool is_static) {
+	update_text(message, is_static);
+
+	if (!dialog_window) {
+		dialog_window = window_create();
+		window_set_window_handlers(dialog_window, (WindowHandlers){
+		    .load = &window_load,
+		    .unload = &window_unload
+		});
+		window_set_click_config_provider(dialog_window, &click_config);
+	}
+
+	window_stack_push(dialog_window, true);
+}
diff --git a/src/simple_dialog.h b/src/simple_dialog.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+
+#pragma once
+
+void
+push_simple_dialog(const char *message, bool is_static);