From 6a44b074f0169a1b0f9e92347af929c5e471746e Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Sat, 18 Apr 2015 13:44:44 +0200
Subject: Reorganised projects

---
 Week8 Quadtrees/src/qtrees/QTNode.java | 63 ++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Week8 Quadtrees/src/qtrees/QTNode.java

(limited to 'Week8 Quadtrees/src/qtrees/QTNode.java')

diff --git a/Week8 Quadtrees/src/qtrees/QTNode.java b/Week8 Quadtrees/src/qtrees/QTNode.java
new file mode 100644
index 0000000..e2ad7e5
--- /dev/null
+++ b/Week8 Quadtrees/src/qtrees/QTNode.java	
@@ -0,0 +1,63 @@
+package qtrees;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * Representation of a node in a QTree
+ * @author Sjaak Smetsers
+ * @author Camil Staps, s4498062
+ * 
+ * Note: the version by Sjaak Smetsers contained a sameLeaf method. This seems to be redundant though, so I removed it.
+ */
+public abstract class QTNode {
+    protected boolean boolean_value;
+    protected String string_value;
+    
+    /**
+     * Fill a (part of a) bitmap with this node
+     * In the template this was an abstract method. However, then we would use
+     * essentially the same code in BlackLeaf and WhiteLeaf. Using a concrete
+     * function here that depends on static properties is much more flexible. In
+     * GreyNode we still override this function.
+     * @param x the x coordinate of the top left corner
+     * @param y the y coordinate of the top left corner
+     * @param width the width of the part of the bitmap to fill
+     * @param bitmap the bitmap to fill
+     */
+    public void fillBitmap( int x, int y, int width, Bitmap bitmap ) {
+        int old_x = x, old_y = y;
+        for (; x < old_x + width; x++)
+            for (y = old_y; y < old_y + width; y++)
+                bitmap.setBit(x, y, boolean_value);
+    }
+    
+    /**
+     * Write a node as bitstream
+     * In the template this was an abstract method. However, then we would use
+     * essentially the same code in BlackLeaf and WhiteLeaf. Using a concrete
+     * function here that depends on static properties is much more flexible. In
+     * GreyNode we still override this function.
+     * @param out Writer to write to
+     * @throws IOException is passed on from Writer
+     */
+    public void writeNode( Writer out ) throws IOException {
+        out.write("0" + string_value);
+    }
+
+    /**
+     * Fill a complete area of a bitmap with a particular value
+     * @param x the x coordinate of the top left corner
+     * @param y the y coordinate of the top left corner
+     * @param width the width (and height) of the area to fill
+     * @param bitmap the bitmap to fill
+     * @param val the value to fill the area with
+     */
+    public static void fillArea( int x, int y, int width, Bitmap bitmap, boolean val ){
+        for (int i = 0; i < width; i++) {
+            for (int j = 0; j < width; j++) {
+                bitmap.setBit(x+i, y+j, val);
+            }
+        }
+    }
+}
-- 
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