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#pragma once
#include <unordered_map>
using namespace std;
#define _DEBUG_BLOCK_CHARS 0
// For hardcoded font data.
struct SFontData
{
public:
static const unsigned short FONTCOLS = 23;
static const unsigned short FONTROWS = 20;
static const unsigned short FONTSIZE = FONTCOLS * FONTROWS;
public:
// Font name.
string m_strFontName;
// Filename of the glyph archive.
wstring m_wstrFilename;
// Number of glyphs in the archive.
unsigned int m_uiGlyphCount;
// Unicode values of each glyph.
unsigned short *m_arrCodepoints;
// X resolution of glyph archive.
unsigned int m_uiGlyphMapX;
// Y resolution of glyph archive.
unsigned int m_uiGlyphMapY;
// Number of columns in the glyph archive.
unsigned int m_uiGlyphMapCols;
// Number of rows in the glyph archive.
unsigned int m_uiGlyphMapRows;
// Width of each glyph.
unsigned int m_uiGlyphWidth;
// Height of each glyph.
unsigned int m_uiGlyphHeight;
// Ascent of each glyph above the baseline (units?).
float m_fAscent;
// Descent of each glyph below the baseline (units?).
float m_fDescent;
// How much to advance for each pixel wide the glyph is.
float m_fAdvPerPixel;
// How many pixels wide any whitespace characters are.
unsigned int m_uiWhitespaceWidth;
public:
static unsigned short Codepoints[FONTSIZE];
static SFontData Mojangles_7;
static SFontData Mojangles_11;
};
// Provides a common interface for dealing with font data.
class CFontData
{
public:
CFontData();
// pbRawImage consumed by constructor.
CFontData(SFontData &sFontData, int *pbRawImage);
// Release memory.
void release();
protected:
// Hardcoded font data.
SFontData *m_sFontData;
// Map Unicodepoints to glyph ids.
unordered_map<unsigned int, unsigned short> m_unicodeMap;
// Kerning value for each glyph.
unsigned short *m_kerningTable;
// Binary blob of the archive image.
unsigned char *m_pbRawImage;
// Total advance of each character.
float *m_pfAdvanceTable;
public:
// Accessor for the font name in the internal SFontData.
const string getFontName();
// Accessor for the hardcoded internal font data.
SFontData *getFontData();
// Get the glyph id corresponding to a unicode point.
unsigned short getGlyphId(unsigned int unicodepoint);
// Get the unicodepoint corresponding to a glyph id.
unsigned int getUnicode(unsigned short glyphId);
// Get a pointer to the top left pixel of a row/column in the raw image.
unsigned char *topLeftPixel(int row, int col);
// Get the row and column where a glyph appears in the archive.
void getPos(unsigned short gyphId, int &row, int &col);
// Get the advance of this character (units?).
float getAdvance(unsigned short glyphId);
// Get the width (in pixels) of a given character.
int getWidth(unsigned short glyphId);
// Returns true if this glyph is whitespace.
bool glyphIsWhitespace(unsigned short glyphId);
// Returns true if this unicodepoint is whitespace
bool unicodeIsWhitespace(unsigned int unicodepoint);
private:
// Move a pointer in an image dx pixels right and dy pixels down, wrap around in either dimension leads to unknown behaviour.
void moveCursor(unsigned char *&cursor, unsigned int dx, unsigned int dy);
};
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