our current experimental Neutrino branch

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@27 e54a6e83-5905-42d5-8d5c-058d10e6a962

src/driver/fontrenderer.h

@@ -0,0 +1,124 @@
+/*
+	Neutrino-GUI  -   DBoxII-Project
+
+	Copyright (C) 2001 Steffen Hehn 'McClean'
+        Copyright (C) 2003 thegoodguy
+
+	License: GPL
+
+	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#ifndef __FONTRENDERER__
+#define __FONTRENDERER__
+
+#include <pthread.h>
+#include <string>
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_CACHE_H
+
+#include FT_CACHE_IMAGE_H
+#include FT_CACHE_SMALL_BITMAPS_H
+
+#include "framebuffer.h"
+
+
+class FBFontRenderClass;
+class Font
+{
+	CFrameBuffer	*frameBuffer;
+	FTC_ImageTypeRec	font;
+	FBFontRenderClass *renderer;
+	FT_Face		face;
+	FT_Size		size;
+	FTC_ScalerRec  scaler;
+
+	FT_Error getGlyphBitmap(FT_ULong glyph_index, FTC_SBit *sbit);
+
+	// these are HACKED values, because the font metrics were unusable.
+	int height,ascender,descender,upper,lower;
+	int fontwidth;
+
+ public:
+	enum fontmodifier
+		{
+			Regular,
+			Embolden
+		};
+	fontmodifier stylemodifier;
+
+	void RenderString(int x, int y, const int width, const char *        text, const unsigned char color, const int boxheight = 0, const bool utf8_encoded = false);
+	void RenderString(int x, int y, const int width, const std::string & text, const unsigned char color, const int boxheight = 0, const bool utf8_encoded = false);
+
+	int getRenderWidth(const char *        text, const bool utf8_encoded = false);
+	int getRenderWidth(const std::string & text, const bool utf8_encoded = false);
+	int getHeight(void);
+	int getSize(){return font.width;}
+	int setSize(int isize);
+
+	Font(FBFontRenderClass *render, FTC_FaceID faceid, const int isize, const fontmodifier _stylemodifier);
+	~Font(){}
+};
+
+class FBFontRenderClass
+{
+		struct fontListEntry
+		{
+			char *filename, *style, *family;
+			fontListEntry *next;
+			~fontListEntry();
+		}
+		*font;
+
+		FT_Library	library;
+		FTC_Manager	cacheManager;	/* the cache manager               */
+		FTC_ImageCache	imageCache;	/* the glyph image cache           */
+		FTC_SBitCache	sbitsCache;	/* the glyph small bitmaps cache   */
+
+		FTC_FaceID getFaceID(const char * const family, const char * const style);
+		FT_Error getGlyphBitmap(FTC_ImageTypeRec *font, FT_ULong glyph_index, FTC_SBit *sbit);
+		FT_Error getGlyphBitmap(FTC_ScalerRec *sc, FT_ULong glyph_index, FTC_SBit *sbit);
+
+		int xres;	/* the screen resolution in dpi */
+		int yres;	/* defaults to 72 dpi */
+
+	public:
+		pthread_mutex_t     render_mutex;
+
+		FT_Error FTC_Face_Requester(FTC_FaceID face_id, FT_Face* aface);
+
+
+		static FT_Error myFTC_Face_Requester(FTC_FaceID  face_id,
+		                                     FT_Library  library,
+		                                     FT_Pointer  request_data,
+		                                     FT_Face*    aface);
+
+		//FT_Face getFace(const char *family, const char *style);
+		Font *getFont(const char * const family, const char * const style, int size);
+
+    std::string getFamily(const char * const filename) const;
+
+		const char * const AddFont(const char * const filename, const bool make_italics = false);
+
+		FBFontRenderClass(const int xres = 72, const int yres = 72);
+		~FBFontRenderClass();
+
+		friend class Font;
+};
+
+#endif