added drawable abstract base class

2 files changed, 117 insertions, 0 deletions

diff --git a/src/menu/drawable.cpp b/src/menu/drawable.cpp
new file mode 100644
index 00000000..c21555d7
--- /dev/null
+++ b/src/menu/drawable.cpp
@@ -0,0 +1,51 @@
+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 2
+ * 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; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#include "drawable.hpp"
+
+namespace usdx
+{
+	Drawable::Drawable(void) : visible(true)
+	{
+	}
+
+	void Drawable::draw(void) const
+	{
+		if (visible) {
+			on_draw();
+		}
+	};
+
+	void Drawable::set_visible(bool value)
+	{
+		visible = value;
+	}
+
+	const bool Drawable::get_visible(void) const
+	{
+		return visible;
+	}
+};
diff --git a/src/menu/drawable.hpp b/src/menu/drawable.hpp
new file mode 100644
index 00000000..9cd0913e
--- /dev/null
+++ b/src/menu/drawable.hpp
@@ -0,0 +1,66 @@
+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 2
+ * 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; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef DRAWABLE_HPP
+#define DRAWABLE_HPP
+
+namespace usdx
+{
+	/**
+	 * Abstract base class for all classes that could be draw.
+	 */
+	class Drawable
+	{
+	private:
+		bool visible;
+
+	public:
+ 		Drawable(void);
+		virtual ~Drawable(void) {};
+
+		/**
+		 * Method for redraw this Object. If visible issues on_draw.
+		 */
+		void draw(void) const;
+
+		/**
+		 * Pure virtual method, that descendant classes have to implement.
+		 */
+		virtual void on_draw(void) const = 0;
+
+		/**
+		 * Setter for visible.
+		 */
+		virtual void set_visible(bool value);
+
+		/**
+		 * Getter for visible.
+		 */
+		virtual const bool get_visible(void) const;
+	};
+};
+
+#endif