diff CollidoscopeApp/include/Chunk.h @ 2:dd889fff8423

added some comments

--- a/CollidoscopeApp/include/Chunk.h	Fri Jul 08 11:39:18 2016 +0200
+++ b/CollidoscopeApp/include/Chunk.h	Mon Jul 11 17:03:40 2016 +0200
@@ -6,6 +6,15 @@
 
 class DrawInfo;
 
+/**
+ *
+ * A chunk of audio in Collidoscope low-fi visual wave. 
+ *
+ * The visual wave of Collidoscope is made out of a number of bars that mimics in a low-fi fashion the typical waveform based representation of audio.
+ * A Chunk is one of the bars of the visual wave. 
+ *
+ */
+
 class Chunk
 {
 
@@ -14,27 +23,62 @@
     const static float kWidth;
     const static float kHalfWidth;
 
+    /**
+     * Constructor, takes as argument the index of this chunk in the wave
+     */ 
 	Chunk( size_t index );
 
+    /**
+     * Sets the top value of this chunk. The value is passed in audio coordinates : [-1.0, 1.0]
+     */
     void inline setTop(float t) { mAudioTop = t; mAnimate = 0.0f; mResetting = false; /* startes the animation to crate a chunk */ }
+    /**
+     * Sets the bottom value of this chunk. The value is passed in audio coordinates : [-1.0, 1.0]
+     */
     void inline setBottom(float b) { mAudioBottom = b; mAnimate = 0.0f; mResetting = false; }
+    /**
+     * Get the top value of this chunk. The value is returned in audio coordinates : [-1.0, 1.0]
+     */
     float inline getTop() const { return mAudioTop; }
+    /**
+     * Get the bottom value of this chunk. The value is returned in audio coordinates : [-1.0, 1.0]
+     */
     float inline getBottom() const { return mAudioBottom; }
 
+    /**
+     * Reset this chunks. When a chunk is reset it starts shrinking until it disappears.
+     *
+     */ 
 	void reset(){
 		mResetting = true;
 	}
 
+    /**
+     * Called in the graphic loop. It update this chunk. 
+     */ 
     void update( const DrawInfo& di );
 
+    /**
+     * Called in the graphic loop. It draws this chunk. 
+     */ 
     void draw( const DrawInfo& di, ci::gl::BatchRef &batch );
 
+    /**
+     * Called in the graphic loop. It draws this chunk all the way to the bottom of the screen. 
+     * This method is called when the chunk is the first or last in a selection. 
+     */ 
     void drawBar( const DrawInfo& di, ci::gl::BatchRef &batch );
 
+    /**
+     * Informs this chunk that it's the first chunk of the selection.
+     */ 
 	void setAsSelectionStart(bool start){
 		isSelectionStart = start;
 	}
 
+    /**
+     * Informs this chunk that it's the last chunk of the selection.
+     */ 
 	void setAsSelectionEnd(bool end){
 		isSelectionEnd = end;
 	}