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diff --git a/engines/glk/frotz/bitmap_font.h b/engines/glk/frotz/bitmap_font.h
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+++ b/engines/glk/frotz/bitmap_font.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM 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; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef GLK_FROTZ_FONTS
+#define GLK_FROTZ_FONTS
+
+#include "graphics/font.h"
+#include "graphics/surface.h"
+#include "common/archive.h"
+#include "common/array.h"
+#include "common/rect.h"
+
+namespace Glk {
+namespace Frotz {
+
+/**
+ * Implements a fixed width font stored as a grid on a passed surface
+ */
+class BitmapFont : public Graphics::Font {
+private:
+	Graphics::Surface _surface;
+	Common::Array<Common::Rect> _chars;
+	size_t _startingChar;
+public:
+	/**
+	 * Constructor
+	 */
+	BitmapFont(const Graphics::Surface &src, uint charWidth = 8, uint charHeight = 8,
+		unsigned char startingChar = ' ');
+	
+	/**
+	 * Destructor
+	 */
+	~BitmapFont();
+
+	/**
+	 * Get the font height
+	 */
+	virtual int getFontHeight() const override { return _chars[0].height(); }
+
+	/**
+	 * Get the maximum character width
+	 */
+	virtual int getMaxCharWidth() const override { return _chars[0].width(); }
+
+	/**
+	 * Get the width of the given character
+	 */
+	virtual int getCharWidth(uint32 chr) const override {
+		return _chars[chr - _startingChar].width();
+	}
+
+	/**
+	 * Draw a character
+	 */
+	virtual void drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const override;
+};
+
+} // End of namespace Frotz
+} // End of namespace Glk
+
+#endif