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src/Area.vala

@@ -5,88 +5,35 @@ namespace CairoChart {
 	 */
 	public class Area {
 
-		double _x0 = 0;
-		double _x1 = 1;
-		double _y0 = 0;
-		double _y1 = 1;
-
-		/**
-		 * Zoomed Left bound.
-		 */
-		public double zx0 = 0;
-
-		/**
-		 * Zoomed Top bound.
-		 */
-		public double zx1 = 1;
-
-		/**
-		 * Zoomed Right bound.
-		 */
-		public double zy0 = 0;
-
-		/**
-		 * Zoomed Bottom bound.
-		 */
-		public double zy1 = 1;
-
 		/**
 		 * Left bound.
 		 */
-		public double x0 {
-			get {
-				return _x0;
-			}
-			set {
-				zx0 = _x0 = value;
-			}
-		}
+		public double x0 = 0;
 
 		/**
 		 * Top bound.
 		 */
-		public double y0 {
-			get {
-				return _y0;
-			}
-			set {
-				zy0 = _y0 = value;
-			}
-		}
+		public double x1 = 1;
 
 		/**
 		 * Right bound.
 		 */
-		public double x1 {
-			get {
-				return _x1;
-			}
-			set {
-				zx1 = _x1 = value;
-			}
-		}
+		public double y0 = 0;
 
 		/**
 		 * Bottom bound.
 		 */
-		public double y1 {
-			get {
-				return _y1;
-			}
-			set {
-				zy1 = _y1 = value;
-			}
-		}
+		public double y1 = 1;
 
 		/**
 		 * ``Area`` width.
 		 */
 		public double width {
 			get {
-				return _x1 - _x0;
+				return x1 - x0;
 			}
 			set {
-				zx1 = _x1 = _x0 + value;
+				x1 = x0 + value;
 			}
 		}
 
@@ -95,34 +42,10 @@ namespace CairoChart {
 		 */
 		public double height {
 			get {
-				return _y1 - _y0;
+				return y1 - y0;
 			}
 			set {
-				zy1 = _y1 = _y0 + value;
-			}
-		}
-
-		/**
-		 * ``Area`` zoomed width.
-		 */
-		public double zwidth {
-			get {
-				return zx1 - zx0;
-			}
-			set {
-				zx1 = zx0 + value;
-			}
-		}
-
-		/**
-		 * ``Area`` zoomed height.
-		 */
-		public double zheight {
-			get {
-				return zy1 - zy0;
-			}
-			set {
-				zy1 = zy0 + value;
+				y1 = y0 + value;
 			}
 		}
 
@@ -187,15 +110,5 @@ namespace CairoChart {
 		public Area copy () {
 			return new Area.with_area(this);
 		}
-
-		/**
-		 * Unzooms ``Area``.
-		 */
-		public void unzoom () {
-			zx0 = x0;
-			zy0 = y0;
-			zx1 = x1;
-			zy1 = y1;
-		}
 	}
 }

src/Place.vala

@@ -0,0 +1,201 @@
+namespace CairoChart {
+
+	/**
+	 * Place rectangle.
+	 */
+	public class Place {
+
+		double _x0 = 0;
+		double _x1 = 1;
+		double _y0 = 0;
+		double _y1 = 1;
+
+		/**
+		 * Zoomed Left bound.
+		 */
+		public double zx0 = 0;
+
+		/**
+		 * Zoomed Top bound.
+		 */
+		public double zx1 = 1;
+
+		/**
+		 * Zoomed Right bound.
+		 */
+		public double zy0 = 0;
+
+		/**
+		 * Zoomed Bottom bound.
+		 */
+		public double zy1 = 1;
+
+		/**
+		 * Left bound.
+		 */
+		public double x0 {
+			get {
+				return _x0;
+			}
+			set {
+				zx0 = _x0 = value;
+			}
+		}
+
+		/**
+		 * Top bound.
+		 */
+		public double y0 {
+			get {
+				return _y0;
+			}
+			set {
+				zy0 = _y0 = value;
+			}
+		}
+
+		/**
+		 * Right bound.
+		 */
+		public double x1 {
+			get {
+				return _x1;
+			}
+			set {
+				zx1 = _x1 = value;
+			}
+		}
+
+		/**
+		 * Bottom bound.
+		 */
+		public double y1 {
+			get {
+				return _y1;
+			}
+			set {
+				zy1 = _y1 = value;
+			}
+		}
+
+		/**
+		 * ``Place`` width.
+		 */
+		public double width {
+			get {
+				return _x1 - _x0;
+			}
+			set {
+				zx1 = _x1 = _x0 + value;
+			}
+		}
+
+		/**
+		 * ``Place`` height.
+		 */
+		public double height {
+			get {
+				return _y1 - _y0;
+			}
+			set {
+				zy1 = _y1 = _y0 + value;
+			}
+		}
+
+		/**
+		 * ``Place`` zoomed width.
+		 */
+		public double zwidth {
+			get {
+				return zx1 - zx0;
+			}
+			set {
+				zx1 = zx0 + value;
+			}
+		}
+
+		/**
+		 * ``Place`` zoomed height.
+		 */
+		public double zheight {
+			get {
+				return zy1 - zy0;
+			}
+			set {
+				zy1 = zy0 + value;
+			}
+		}
+
+		/**
+		 * Constructs a new ``Place``.
+		 */
+		public Place () { }
+
+		/**
+		 * Constructs a new ``Place`` by other ``Place``.
+		 * @param place ``Place`` instance.
+		 */
+		public Place.with_place (Place place) {
+			this.x0 = place.x0;
+			this.y0 = place.y0;
+			this.x1 = place.x1;
+			this.y1 = place.y1;
+		}
+
+		/**
+		 * Constructs a new ``Place`` with absolute coordinates.
+		 * @param x0 left bound.
+		 * @param y0 top bound.
+		 * @param x1 right bound.
+		 * @param y1 bottom bound.
+		 */
+		public Place.with_abs (double x0, double y0, double x1, double y1) {
+			this.x0 = x0;
+			this.y0 = y0;
+			this.x1 = x1;
+			this.y1 = y1;
+		}
+
+		/**
+		 * Constructs a new ``Place`` with relative coordinates.
+		 * @param x0 left bound.
+		 * @param y0 top bound.
+		 * @param width ``Place`` width.
+		 * @param height ``Place`` height.
+		 */
+		public Place.with_rel (double x0, double y0, double width, double height) {
+			this.x0 = x0;
+			this.y0 = y0;
+			this.width = width;
+			this.height = height;
+		}
+
+		/**
+		 * Constructs a new ``Place`` by ``Cairo.Rectangle``.
+		 * @param rectangle ``Cairo.Rectangle`` instance.
+		 */
+		public Place.with_rectangle (Cairo.Rectangle rectangle) {
+			this.x0 = rectangle.x;
+			this.y0 = rectangle.y;
+			this.width = rectangle.width;
+			this.height = rectangle.height;
+		}
+
+		/**
+		 * Gets a copy of the ``Chart``.
+		 */
+		public Place copy () {
+			return new Place.with_place(this);
+		}
+
+		/**
+		 * Unzooms ``Place``.
+		 */
+		public void unzoom () {
+			zx0 = x0;
+			zy0 = y0;
+			zx1 = x1;
+			zy1 = y1;
+		}
+	}
+}

src/Series.vala

@@ -15,7 +15,7 @@ namespace CairoChart {
 		public Axis axis_x = new Axis();
 		public Axis axis_y = new Axis();
 
-		public Area place = new Area();
+		public Place place = new Place();
 		public Text title = new Text ();
 		public Marker marker = new Marker ();