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91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/*
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* font.h: Font handling for the DVB On Screen Display
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: font.h 1.14 2006/12/03 16:42:10 kls Exp $
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*/
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#ifndef __FONT_H
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#define __FONT_H
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#include <stdint.h>
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#include <stdlib.h>
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enum eDvbFont {
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fontOsd,
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fontFix,
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fontSml
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#define eDvbFontSize (fontSml + 1)
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};
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enum eDvbCode {
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code_iso8859_1,
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code_iso8859_2,
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code_iso8859_5,
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code_iso8859_7,
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code_iso8859_13,
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code_iso8859_15,
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#define eDvbCodeSize (code_iso8859_15 + 1)
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};
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class cFont {
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public:
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enum { NUMCHARS = 256 };
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typedef uint32_t tPixelData;
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struct tCharData {
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tPixelData width, height;
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tPixelData lines[1];
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};
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private:
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static eDvbCode code;
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static cFont *fonts[];
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const tCharData *data[NUMCHARS];
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int height;
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public:
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cFont(const void *Data);
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virtual ~cFont() {}
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void SetData(const void *Data);
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virtual int Width(unsigned char c) const { return data[c]->width; }
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///< Returns the width of the given character.
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virtual int Width(const char *s) const;
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///< Returns the width of the given string.
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virtual int Height(unsigned char c) const { return data[c]->height; }
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///< Returns the height of the given character.
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virtual int Height(const char *s) const;
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///< Returns the height of the given string.
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virtual int Height(void) const { return height; }
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///< Returns the height of this font (all characters have the same height).
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const tCharData *CharData(unsigned char c) const { return data[c]; }
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static bool SetCode(const char *Code);
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static void SetCode(eDvbCode Code);
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static void SetFont(eDvbFont Font, const void *Data = NULL);
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static const cFont *GetFont(eDvbFont Font);
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};
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class cTextWrapper {
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private:
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char *text;
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char *eol;
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int lines;
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int lastLine;
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public:
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cTextWrapper(void);
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cTextWrapper(const char *Text, const cFont *Font, int Width);
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~cTextWrapper();
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void Set(const char *Text, const cFont *Font, int Width);
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///< Wraps the Text to make it fit into the area defined by the given Width
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///< when displayed with the given Font.
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///< Wrapping is done by inserting the necessary number of newline
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///< characters into the string.
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const char *Text(void);
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///< Returns the full wrapped text.
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int Lines(void) { return lines; }
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///< Returns the actual number of lines needed to display the full wrapped text.
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const char *GetLine(int Line);
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///< Returns the given Line. The first line is numbered 0.
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};
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#endif //__FONT_H
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