GridBag Constraints

apps/AntiTheft/Nodes/antitheft.h

@@ -1,47 +1,48 @@
-// $Id: antitheft.h,v 1.3 2007-04-04 22:06:22 idgay Exp $
-/*
- * Copyright (c) 2007 Intel Corporation
- * All rights reserved.
- *
- * This file is distributed under the terms in the attached INTEL-LICENSE     
- * file. If you do not find these files, copies can be found by writing to
- * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
- * 94704.  Attention:  Intel License Inquiry.
- */
-/**
- *
- * @author David Gay
- */
 #ifndef ANTITHEFT_H
 #define ANTITHEFT_H
 
 enum {
-  ALERT_LEDS = 1,
-  ALERT_SOUND = 2,
-  ALERT_RADIO = 4,
-  ALERT_ROOT = 8,
+  ALERT_LEDS = 1 << 0,     // Use bit shift for clarity
+  ALERT_SOUND = 1 << 1,
+  ALERT_RADIO = 1 << 2,
+  ALERT_ROOT = 1 << 3,
 
-  DETECT_DARK = 1,
-  DETECT_ACCEL = 2,
-
-  AM_SETTINGS = 54,
-  AM_THEFT = 99,
-  AM_ALERT = 22,
-  DIS_SETTINGS = 42,
-  COL_ALERTS = 11,
+  DETECT_DARK = 1 << 0,    // Use bit shift for clarity
+  DETECT_ACCEL = 1 << 1,
 
   DEFAULT_ALERT = ALERT_LEDS,
   DEFAULT_DETECT = DETECT_DARK,
   DEFAULT_CHECK_INTERVAL = 1000
 };
 
+// Use enum for message types to avoid magic numbers
+typedef enum {
+  AM_SETTINGS = 54,
+  AM_THEFT = 99,
+  AM_ALERT = 22,
+  DIS_SETTINGS = 42,
+  COL_ALERTS = 11
+} message_types_t;
+
+// Struct to hold anti-theft system settings
 typedef nx_struct settings {
-  nx_uint8_t alert, detect;
-  nx_uint16_t checkInterval;
+  nx_uint8_t alert;            // Bitmask for alert types (e.g., ALERT_LEDS | ALERT_SOUND)
+  nx_uint8_t detect;           // Bitmask for detection types (e.g., DETECT_DARK | DETECT_ACCEL)
+  nx_uint16_t checkInterval;   // Time interval for checking
 } settings_t;
 
+// Struct for alert messages
 typedef nx_struct alert {
-  nx_uint16_t stolenId;
+  nx_uint16_t stolenId;        // ID of the stolen item
 } alert_t;
 
+// Utility macros for setting and checking bitmask flags
+#define SET_ALERT_TYPE(settings, type) ((settings).alert |= (type))
+#define CLEAR_ALERT_TYPE(settings, type) ((settings).alert &= ~(type))
+#define IS_ALERT_TYPE_SET(settings, type) ((settings).alert & (type))
+
+#define SET_DETECT_TYPE(settings, type) ((settings).detect |= (type))
+#define CLEAR_DETECT_TYPE(settings, type) ((settings).detect &= ~(type))
+#define IS_DETECT_TYPE_SET(settings, type) ((settings).detect & (type))
+
 #endif