From 2337ea2b0153a98175dd18e87f202307ec863852 Mon Sep 17 00:00:00 2001
From: Hermet Park <chuneon.park@samsung.com>
Date: Tue, 10 Aug 2021 10:52:43 +0900
Subject: [PATCH] common interator: add count() interface.

---
 src/lib/tvgPaint.h       | 1 +
 src/lib/tvgPictureImpl.h | 6 ++++++
 src/lib/tvgSceneImpl.h   | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/src/lib/tvgPaint.h b/src/lib/tvgPaint.h
index 6ce5d1ff..b15ab177 100644
--- a/src/lib/tvgPaint.h
+++ b/src/lib/tvgPaint.h
@@ -31,6 +31,7 @@ namespace tvg
     {
         virtual ~Iterator() {}
         virtual const Paint* next() = 0;
+        virtual uint32_t count() = 0;
     };
 
     struct StrategyMethod
diff --git a/src/lib/tvgPictureImpl.h b/src/lib/tvgPictureImpl.h
index 8d4fd111..12352fd8 100644
--- a/src/lib/tvgPictureImpl.h
+++ b/src/lib/tvgPictureImpl.h
@@ -42,6 +42,12 @@ struct PictureIterator : Iterator
         paint = nullptr;
         return ret;
     }
+
+    uint32_t count() override
+    {
+        if (paint) return 1;
+        else return 0;
+    }
 };
 
 
diff --git a/src/lib/tvgSceneImpl.h b/src/lib/tvgSceneImpl.h
index 9b14db88..0a2292b1 100644
--- a/src/lib/tvgSceneImpl.h
+++ b/src/lib/tvgSceneImpl.h
@@ -43,6 +43,11 @@ struct SceneIterator : Iterator
         if (idx >= paints->count) return nullptr;
         return paints->data[idx++];
     }
+
+    uint32_t count() override
+    {
+        return paints->count;
+    }
 };
 
 struct Scene::Impl