import of enigma2

1 files changed, 163 insertions, 0 deletions

diff --git a/lib/gdi/font.h b/lib/gdi/font.h
new file mode 100644
index 00000000..ac55c884
--- /dev/null
+++ b/lib/gdi/font.h
@@ -0,0 +1,163 @@
+#ifndef __FONT_H
+#define __FONT_H
+
+#include <freetype/freetype.h>
+#include <freetype/ftcache.h>
+#include <freetype/cache/ftcglyph.h>
+#include <freetype/cache/ftcimage.h>
+#include <freetype/cache/ftcmanag.h>
+#include <freetype/cache/ftcsbits.h>
+#include <freetype/cache/ftlru.h>
+#include <vector>
+
+#include <lib/gdi/fb.h>
+#include <lib/gdi/esize.h>
+#include <lib/gdi/epoint.h>
+#include <lib/gdi/erect.h>
+#include <lib/base/estring.h>
+
+class FontRenderClass;
+class Font;
+class gPixmapDC;
+class gFont;
+class gRGB;
+
+class fontRenderClass
+{ 
+	friend class Font;
+	friend class eTextPara;
+	fbClass *fb;
+	struct fontListEntry
+	{
+		eString filename, face;
+		int scale; // 100 is 1:1
+		fontListEntry *next;
+		~fontListEntry();
+	} *font;
+
+	FT_Library library;
+	FTC_Manager			cacheManager;				/* the cache manager							 */
+	FTC_Image_Cache	imageCache;					/* the glyph image cache					 */
+	FTC_SBit_Cache	 sbitsCache;				/* the glyph small bitmaps cache	 */
+
+	FTC_FaceID getFaceID(const eString &face);
+	FT_Error getGlyphBitmap(FTC_Image_Desc *font, FT_ULong glyph_index, FTC_SBit *sbit);
+	static fontRenderClass *instance;
+public:
+	float getLineHeight(const gFont& font);
+	eString AddFont(const eString &filename, const eString &name, int scale);
+	static fontRenderClass *getInstance();
+	FT_Error FTC_Face_Requester(FTC_FaceID	face_id,
+															FT_Face*		aface);
+	Font *getFont(const eString &face, int size, int tabwidth=-1);
+	fontRenderClass();
+	~fontRenderClass();
+};
+
+#define RS_WRAP		1
+#define RS_DOT		2
+#define RS_DIRECT	4
+#define RS_FADE		8
+
+#define GS_ISSPACE  1
+#define GS_ISFIRST  2
+#define GS_USED			4
+
+struct pGlyph
+{
+	int x, y, w;
+	Font *font;
+	FT_ULong glyph_index;
+	int flags;
+	eRect bbox;
+};
+
+typedef std::vector<pGlyph> glyphString;
+
+class Font;
+class eLCD;
+
+class eTextPara
+{
+	Font *current_font, *replacement_font;
+	FT_Face current_face, replacement_face;
+	int use_kerning;
+	int previous;
+	static eString replacement_facename;
+
+	eRect area;
+	ePoint cursor;
+	eSize maximum;
+	int left;
+	glyphString glyphs;
+	int refcnt;
+
+	int appendGlyph(Font *current_font, FT_Face current_face, FT_UInt glyphIndex, int flags, int rflags);
+	void newLine(int flags);
+	void setFont(Font *font, Font *replacement_font);
+	eRect boundBox;
+	void calc_bbox();
+	int bboxValid;
+public:
+	eTextPara(eRect area, ePoint start=ePoint(-1, -1))
+		: current_font(0), replacement_font(0), current_face(0), replacement_face(0),
+			area(area), cursor(start), maximum(0, 0), left(start.x()), refcnt(0), bboxValid(0)
+	{
+	}
+	~eTextPara();
+	
+	static void setReplacementFont(eString font) { replacement_facename=font; }
+
+	void destroy();
+	eTextPara *grab();
+
+	void setFont(const gFont &font);
+	int renderString(const eString &string, int flags=0);
+
+	void clear();
+
+	void blit(gPixmapDC &dc, const ePoint &offset, const gRGB &background, const gRGB &foreground);
+
+	enum
+	{
+		dirLeft, dirRight, dirCenter, dirBlock
+	};
+
+	void realign(int dir);
+
+	const eRect & getBoundBox()
+	{
+		if (!bboxValid)
+			calc_bbox();
+
+		return boundBox;
+	}
+
+	const eRect& getGlyphBBox(int num) const
+	{
+		return glyphs[num].bbox;
+	}
+};
+
+class Font
+{
+public:
+	FTC_Image_Desc font;
+	fontRenderClass *renderer;
+	int ref;
+	FT_Error getGlyphBitmap(FT_ULong glyph_index, FTC_SBit *sbit);
+	FT_Face face;
+	FT_Size size;
+	
+	int tabwidth;
+	int height;
+	Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tabwidth);
+	~Font();
+	
+	void lock();
+	void unlock();	// deletes if ref==0
+};
+
+extern fontRenderClass *font;
+
+#endif