Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IGUIFontBitmap.h

@@ -0,0 +1,46 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#ifndef __I_GUI_FONT_BITMAP_H_INCLUDED__
+#define __I_GUI_FONT_BITMAP_H_INCLUDED__
+
+#include "IGUIFont.h"
+
+namespace irr
+{
+namespace gui
+{
+	class IGUISpriteBank;
+
+//! Font interface.
+class IGUIFontBitmap : public IGUIFont
+{
+public:
+
+	//! Returns the type of this font
+	virtual EGUI_FONT_TYPE getType() const _IRR_OVERRIDE_ { return EGFT_BITMAP; }
+
+	//! returns the parsed Symbol Information
+	virtual IGUISpriteBank* getSpriteBank() const = 0;
+
+	//! returns the sprite number from a given character
+	virtual u32 getSpriteNoFromChar(const wchar_t *c) const = 0;
+
+	//! Gets kerning values (distance between letters) for the font. If no parameters are provided,
+	/** the global kerning distance is returned.
+	\param thisLetter: If this parameter is provided, the left side kerning for this letter is added
+	to the global kerning value. For example, a space might only be one pixel wide, but it may
+	be displayed as several pixels.
+	\param previousLetter: If provided, kerning is calculated for both letters and added to the global
+	kerning value. For example, EGFT_BITMAP will add the right kerning value of previousLetter to the
+	left side kerning value of thisLetter, then add the global value.
+	*/
+	virtual s32 getKerningWidth(const wchar_t* thisLetter=0, const wchar_t* previousLetter=0) const = 0;
+};
+
+} // end namespace gui
+} // end namespace irr
+
+#endif
+