From 8b96bb04a6351fcce81cdbf17d88ba0db343bd25 Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Fri, 5 Jul 2002 14:32:10 +0000
Subject:         * (HasTag): Ajout de la m�thode HasTag.

---
 generic/Item.c | 31 +++++++++++++++++++++++++++++++
 generic/Item.h |  1 +
 2 files changed, 32 insertions(+)

(limited to 'generic')

diff --git a/generic/Item.c b/generic/Item.c
index 43121eb..2668f1a 100644
--- a/generic/Item.c
+++ b/generic/Item.c
@@ -1759,6 +1759,36 @@ FreeTags(Item	item)
 /*
  **********************************************************************************
  *
+ * HasTag -- Method
+ *
+ **********************************************************************************
+ */
+static ZnBool
+HasTag(Item	item,
+       Tk_Uid	tag)
+{
+  int		num;
+  Tk_Uid	*tags;
+
+  if (!item->tags || !ZnListSize(item->tags)) {
+    return False;
+  }
+  else {
+    num = ZnListSize(item->tags);
+    tags = ZnListArray(item->tags);
+    for (tags = ZnListArray(item->tags); num > 0; tags++, num--) {
+      if (*tags == tag) {
+	return True;
+      }
+    }
+  }
+  return False;
+}
+
+
+/*
+ **********************************************************************************
+ *
  * ZnCreateItem --
  *
  *	InsertItem and ConfigureItem must be called after CreateItem
@@ -2685,6 +2715,7 @@ struct _ITEM ITEM = {
   AddTag,
   RemoveTag,
   FreeTags,
+  HasTag,
   ResetTransfo,
   SetTransfo,
   TranslateItem,
diff --git a/generic/Item.h b/generic/Item.h
index 21dc2c2..8fb19e7 100644
--- a/generic/Item.h
+++ b/generic/Item.h
@@ -223,6 +223,7 @@ extern struct _ITEM {
   void (*AddTag)(Item item, Tk_Uid tag);
   void (*RemoveTag)(Item item, Tk_Uid tag);
   void (*FreeTags)(Item item);
+  ZnBool (*HasTag)(Item item, Tk_Uid tag);
   void (*ResetTransfo)(Item item);
   void (*SetTransfo)(Item item, struct _ZnTransfo *t);
   void (*TranslateItem)(Item item, ZnReal tx, ZnReal ty);
-- 
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