Diff: ItemSet.cpp

Revision:

0:d441275f622f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ItemSet.cpp	Mon Aug 09 07:01:43 2010 +0000
@@ -0,0 +1,74 @@
+#include "ItemSet.h"
+#include "mbed.h"
+using namespace mbed;
+
+ItemSet::ItemSet() {
+    firstItem = currentItem = NULL;
+    numOfItems = 0;
+}
+
+Object* ItemSet::First() {
+    currentItem = firstItem;
+    if (currentItem == NULL) return(NULL);
+
+    return(currentItem->object);
+}
+
+Object* ItemSet::Next() {
+    if (currentItem != NULL) {
+        if (currentItem->nextItem != NULL) {
+            currentItem = currentItem->nextItem;
+        }else{
+            return NULL;
+        }
+        return(currentItem->object);
+    } else {
+        return(NULL);
+    }
+}
+
+void ItemSet::AddItem(Object* inObj) {
+    Item*  theItem;
+    theItem = new Item;
+    theItem->object = inObj;
+
+    if (numOfItems == 0) {
+        theItem->nextItem =NULL;
+        firstItem = theItem;
+    } else {
+        theItem->nextItem = firstItem;
+        firstItem =theItem;
+    }
+
+    currentItem = theItem;
+    numOfItems++;
+
+    return;
+}
+
+int ItemSet::GetNumOfItems() {
+    return(numOfItems);
+}
+
+Object* ItemSet::GetCurrentObject() {
+
+    if (currentItem != NULL) {
+        return(currentItem->object);
+    } else {
+        return(NULL);
+    }
+}
+
+
+Object* ItemSet::SerchId(unsigned int inId) {
+    Item* item=firstItem;
+
+    while (item != NULL) {
+        if (item->object->CompareId(inId)) {
+            return(item->object);
+        }
+        item = item->nextItem;
+    }
+
+    return NULL;
+}