| /* |
| * Copyright (c) 2003, Adam Dunkels. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgement: |
| * This product includes software developed by Adam Dunkels. |
| * 4. The name of the author may not be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * This an example program for the Contiki desktop OS |
| * |
| * $Id: hello.c,v 1.3 2003/04/10 07:02:05 adamdunkels Exp $ |
| * |
| */ |
| |
| /* This is an example of how to write programs for Contiki. It |
| displays a window with the famous message "Hello world" and two |
| buttons; one which changes the message slightly and one which quits |
| the application. */ |
| |
| #include "ctk.h" |
| #include "dispatcher.h" |
| #include "loader.h" |
| |
| static struct ctk_window window; |
| |
| static struct ctk_label hellolabel = |
| {CTK_LABEL(0, 0, 8, 1, "Hello")}; |
| static struct ctk_label worldlabel = |
| {CTK_LABEL(8, 1, 6, 1, "world!")}; |
| |
| static struct ctk_button updatebutton = |
| {CTK_BUTTON(0, 3, 6, "Update")}; |
| static struct ctk_button closebutton = |
| {CTK_BUTTON(8, 3, 5, "Close")}; |
| |
| static DISPATCHER_SIGHANDLER(hello_sighandler, s, data); |
| static struct dispatcher_proc p = |
| {DISPATCHER_PROC("Hello world", NULL, hello_sighandler, NULL)}; |
| static ek_id_t id; |
| |
| /*-----------------------------------------------------------------------------------*/ |
| LOADER_INIT_FUNC(hello_init) |
| { |
| if(id == EK_ID_NONE) { |
| id = dispatcher_start(&p); |
| |
| ctk_window_new(&window, 15, 4, "Hello"); |
| |
| CTK_WIDGET_ADD(&window, &hellolabel); |
| CTK_WIDGET_ADD(&window, &worldlabel); |
| |
| CTK_WIDGET_ADD(&window, &updatebutton); |
| CTK_WIDGET_ADD(&window, &closebutton); |
| |
| CTK_WIDGET_FOCUS(&window, &updatebutton); |
| |
| dispatcher_listen(ctk_signal_button_activate); |
| dispatcher_listen(ctk_signal_window_close); |
| } |
| ctk_window_open(&window); |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| static void |
| hello_quit(void) |
| { |
| dispatcher_exit(&p); |
| id = EK_ID_NONE; |
| LOADER_UNLOAD(); |
| ctk_redraw(); |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| static DISPATCHER_SIGHANDLER(hello_sighandler, s, data) |
| { |
| DISPATCHER_SIGHANDLER_ARGS(s, data); |
| |
| if(s == ctk_signal_button_activate) { |
| if(data == (ek_data_t)&updatebutton) { |
| ctk_label_set_text(&hellolabel, "Good bye"); |
| CTK_WIDGET_REDRAW(&hellolabel); |
| } else if(data == (ek_data_t)&closebutton) { |
| ctk_window_close(&window); |
| hello_quit(); |
| } |
| } else if(s == ctk_signal_window_close && |
| data == (ek_data_t)&window) { |
| hello_quit(); |
| } |
| } |
| /*-----------------------------------------------------------------------------------*/ |