From a73d81fc89430968c9575f839b2f1400db0df387 Mon Sep 17 00:00:00 2001
From: Kolan Sh <backbone@backbone.ws>
Date: Mon, 15 Jan 2018 12:05:21 +0300
Subject: [PATCH] Most of methods should be virtual.

---
 src/Axis.vala   |  2 +-
 src/Grid.vala   |  2 +-
 src/Legend.vala |  2 +-
 src/Marker.vala |  2 +-
 src/Place.vala  |  2 +-
 src/Series.vala |  2 +-
 src/Text.vala   | 13 ++++++-------
 7 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/Axis.vala b/src/Axis.vala
index dd35252..9c7a2b5 100644
--- a/src/Axis.vala
+++ b/src/Axis.vala
@@ -77,7 +77,7 @@ namespace CairoChart {
 		public Line.Style line_style = Line.Style ();
 		public double font_indent = 5;
 
-		public Axis copy () {
+		public virtual Axis copy () {
 			var axis = new Axis ();
 			axis._date_format = this._date_format;
 			axis._dsec_signs = this._dsec_signs;
diff --git a/src/Grid.vala b/src/Grid.vala
index 0c3e62c..e486a0e 100644
--- a/src/Grid.vala
+++ b/src/Grid.vala
@@ -8,7 +8,7 @@ namespace CairoChart {
 
 		public Line.Style line_style = Line.Style ();
 
-		public Grid copy () {
+		public virtual Grid copy () {
 			var grid = new Grid ();
 			grid.color = this.color;
 			grid.line_style = this.line_style;
diff --git a/src/Legend.vala b/src/Legend.vala
index 11d2398..9797ab7 100644
--- a/src/Legend.vala
+++ b/src/Legend.vala
@@ -21,7 +21,7 @@ namespace CairoChart {
 		public double text_vspace = 2.0;
 		public bool show = true;
 
-		public Legend copy () {
+		public virtual Legend copy () {
 			var legend = new Legend ();
 			legend.position = this.position;
 			legend.font_style = this.font_style;
diff --git a/src/Marker.vala b/src/Marker.vala
index e5902ba..681da83 100644
--- a/src/Marker.vala
+++ b/src/Marker.vala
@@ -20,7 +20,7 @@ namespace CairoChart {
 			this.size = size;
 		}
 
-		public Marker copy () {
+		public virtual Marker copy () {
 			return new Marker (type, size);
 		}
 
diff --git a/src/Place.vala b/src/Place.vala
index fcaad33..f810a4c 100644
--- a/src/Place.vala
+++ b/src/Place.vala
@@ -29,7 +29,7 @@ namespace CairoChart {
 		public double zoom_y_min = 0;
 		public double zoom_y_max = 1;
 
-		public Place copy () {
+		public virtual Place copy () {
 			var place = new Place ();
 			place.x_min = this.x_min;
 			place.x_max = this.x_max;
diff --git a/src/Series.vala b/src/Series.vala
index d7ed81b..8400d48 100644
--- a/src/Series.vala
+++ b/src/Series.vala
@@ -41,7 +41,7 @@ namespace CairoChart {
 
 		public bool zoom_show = true;
 
-		public Series copy () {
+		public virtual Series copy () {
 			var series = new Series ();
 			series._color = this._color;
 			series.axis_x = this.axis_x.copy ();
diff --git a/src/Text.vala b/src/Text.vala
index b8813bc..bd999b2 100644
--- a/src/Text.vala
+++ b/src/Text.vala
@@ -1,11 +1,10 @@
 namespace CairoChart {
-	[Compact]
 	public class Text {
 		public string text = "";
 		public Font.Style style = Font.Style ();
 		public Color color = Color();
 
-		public Cairo.TextExtents get_extents (Cairo.Context context) {
+		public virtual Cairo.TextExtents get_extents (Cairo.Context context) {
 			context.select_font_face (style.family, style.slant, style.weight);
 			context.set_font_size (style.size);
 			Cairo.TextExtents extents;
@@ -13,7 +12,7 @@ namespace CairoChart {
 			return extents;
 		}
 
-		public double get_width (Cairo.Context context) {
+		public virtual double get_width (Cairo.Context context) {
 			var extents = get_extents (context);
 			switch (style.orientation) {
 			case Font.Orientation.HORIZONTAL: return extents.width;
@@ -22,7 +21,7 @@ namespace CairoChart {
 			}
 		}
 
-		public double get_height (Cairo.Context context) {
+		public virtual double get_height (Cairo.Context context) {
 			var extents = get_extents (context);
 			switch (style.orientation) {
 			case Font.Orientation.HORIZONTAL: return extents.height;
@@ -36,7 +35,7 @@ namespace CairoChart {
 			double height;
 		}
 
-		public Size get_size (Cairo.Context context) {
+		public virtual Size get_size (Cairo.Context context) {
 			var sz = Size();
 			var extents = get_extents (context);
 			switch (style.orientation) {
@@ -52,7 +51,7 @@ namespace CairoChart {
 			return sz;
 		}
 
-		public void show (Cairo.Context context) {
+		public virtual void show (Cairo.Context context) {
 			context.select_font_face(style.family,
 			                         style.slant,
 			                         style.weight);
@@ -74,7 +73,7 @@ namespace CairoChart {
 			this.color = color;
 		}
 
-		public Text copy () {
+		public virtual Text copy () {
 			var text = new Text ();
 			text.text = this.text;
 			text.style = this.style;