[ease/themes: 1/2] Created a SlideSet base class for Document and Theme.

[Nate Stedman <natesm src gnome org>]

commit 1accc4eec0056eaafafb08c1c0371da895b164f6
Author: Nate Stedman <natesm gmail com>
Date:   Thu Jun 3 04:57:24 2010 -0400

    Created a SlideSet base class for Document and Theme.

 Makefile.am       |    1 +
 src/Document.vala |   22 +++++++---------------
 src/SlideSet.vala |   43 +++++++++++++++++++++++++++++++++++++++++++
 src/Theme.vala    |   11 ++++++++++-
 4 files changed, 61 insertions(+), 16 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 7582234..53fb212 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -37,6 +37,7 @@ ease_SOURCES = \
 	src/SlideButtonPanel.vala \
 	src/SlideButton.vala \
 	src/SlidePane.vala \
+	src/SlideSet.vala \
 	src/Slide.vala \
 	src/TextActor.vala \
 	src/Theme.vala \
diff --git a/src/Document.vala b/src/Document.vala
index 7873314..c186c5b 100644
--- a/src/Document.vala
+++ b/src/Document.vala
@@ -21,9 +21,11 @@
  * The Ease Document class is generated from XML and writes back to XML
  * when saved.
  */
-public class Ease.Document : GLib.Object
+public class Ease.Document : SlideSet
 {
-	public Gee.ArrayList<Slide> slides { get; set; }
+	/**
+	 * The { link Theme} linked to this Document.
+	 */
 	public Theme theme { get; set; }
 	
 	/**
@@ -45,11 +47,6 @@ public class Ease.Document : GLib.Object
 	 * The file path of the Document.
 	 */
 	public string path { get; set; }
-	
-	/**
-	 * The number of { link Slide}s in the Document.
-	 */
-	public int length { get { return slides.size; } }
 
 	/**
 	 * Default constructor, used for new documents.
@@ -57,10 +54,7 @@ public class Ease.Document : GLib.Object
 	 * Creates a new, empty document with no slides. Used for creating new
 	 * documents (which can then add a default slide).
 	 */
-	public Document()
-	{
-		slides = new Gee.ArrayList<Slide>();
-	}
+	public Document() { }
 	
 	/**
 	 * Inserts a new { link Slide} into the Document
@@ -68,17 +62,15 @@ public class Ease.Document : GLib.Object
 	 * @param s The { link Slide} to insert.
 	 * @param index The position of the new { link Slide} in the Document.
 	 */
-	public void add_slide(int index, Slide s)
+	public override void add_slide(int index, Slide s)
 	{
 		s.parent = this;
-		slides.insert(index, s);
+		base.add_slide(index, s);
 	}
 	
 	/**
 	 * Returns whether or not the Document has a { link Slide} after the
 	 * passed in { link Slide}.
-	 *
-	 * @param slide
 	 */
 	public bool has_next_slide(Slide slide)
 	{
diff --git a/src/SlideSet.vala b/src/SlideSet.vala
new file mode 100644
index 0000000..0fceeaf
--- /dev/null
+++ b/src/SlideSet.vala
@@ -0,0 +1,43 @@
+/*  Ease, a GTK presentation application
+    Copyright (C) 2010 Nate Stedman
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * A base class for { link Document} and { link Theme}.
+ */
+public abstract class Ease.SlideSet : Object
+{
+	/**
+	 * All { link Slide}s in this SlideSet.
+	 */
+	public Gee.ArrayList<Slide> slides = new Gee.ArrayList<Slide>();
+	
+	/**
+	 * The number of { link Slide}s in the SlideSet.
+	 */
+	public int length { get { return slides.size; } }
+	
+	/**
+	 * Inserts a new { link Slide} into the SlideSet
+	 *
+	 * @param s The { link Slide} to insert.
+	 * @param index The position of the new { link Slide} in the SlideSet.
+	 */
+	public virtual void add_slide(int index, Slide s)
+	{
+		slides.insert(index, s);
+	}
+}
diff --git a/src/Theme.vala b/src/Theme.vala
index 16eef27..ad3f891 100644
--- a/src/Theme.vala
+++ b/src/Theme.vala
@@ -18,7 +18,16 @@
 /**
  * Internal representation of Ease themes
  */
-public class Ease.Theme : GLib.Object
+public class Ease.Theme : SlideSet
 {
+	/**
+	 * The title of the Theme.
+	 */
+	public string title { get; set; }
+
+	/**
+	 * Creates an empty Theme.
+	 */
+	public Theme() { }
 }