BCSTM-Player |

external/tween-engine/include/TweenEngine/TweenCallback.h

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+//
+//  TweenCallback.h
+//
+//  This code is derived from Universal Tween Engine
+//  Licensed under Apache License 2.0 - http://www.apache.org/licenses/LICENSE-2.0
+//
+
+/**
+ * TweenCallbacks are used to trigger actions at some specific times. They are
+ * used in both Tweens and Timelines. The moment when the callback is
+ * triggered depends on its registered triggers:
+ * <p/>
+ *
+ * <b>BEGIN</b>: right after the delay (if any)<br/>
+ * <b>START</b>: at each iteration beginning<br/>
+ * <b>END</b>: at each iteration ending, before the repeat delay<br/>
+ * <b>COMPLETE</b>: at last END event<br/>
+ * <b>BACK_BEGIN</b>: at the beginning of the first backward iteration<br/>
+ * <b>BACK_START</b>: at each backward iteration beginning, after the repeat delay<br/>
+ * <b>BACK_END</b>: at each backward iteration ending<br/>
+ * <b>BACK_COMPLETE</b>: at last BACK_END event
+ * <p/>
+ *
+ * <pre> {@code
+ * forward :      BEGIN                                   COMPLETE
+ * forward :      START    END      START    END      START    END
+ * |--------------[XXXXXXXXXX]------[XXXXXXXXXX]------[XXXXXXXXXX]
+ * backward:      bEND  bSTART      bEND  bSTART      bEND  bSTART
+ * backward:      bCOMPLETE                                 bBEGIN
+ * }</pre>
+ *
+ * @see Tween
+ * @see Timeline
+ * @author Aurelien Ribon | http://www.aurelienribon.com/
+ */
+
+#ifndef __TweenCallback__
+#define __TweenCallback__
+
+namespace TweenEngine
+{
+    class BaseTween;
+    
+    class TweenCallback
+    {
+        
+    public:
+        static const int BEGIN = 0x01;
+        static const int START = 0x02;
+        static const int END = 0x04;
+        static const int COMPLETE = 0x08;
+        static const int BACK_BEGIN = 0x10;
+        static const int BACK_START = 0x20;
+        static const int BACK_END = 0x40;
+        static const int BACK_COMPLETE = 0x80;
+        static const int ANY_FORWARD = 0x0F;
+        static const int ANY_BACKWARD = 0xF0;
+        static const int ANY = 0xFF;
+        
+        virtual ~TweenCallback() {}
+        virtual void onEvent(int type, BaseTween *source) = 0;
+    };
+    
+}
+#endif /* defined(__TweenCallback__) */