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103 lines
2.1 KiB
C
103 lines
2.1 KiB
C
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// -*- C++ -*-
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/* This file is part of
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* ======================================================
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*
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* LyX, The Document Processor
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*
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* Copyright (C) 1997 Asger Alstrup
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* and the LyX Team.
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*
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*======================================================*/
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#ifndef _FONTINFO_H_
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#define _FONTINFO_H_
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "LString.h"
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/** This class manages a font.
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The idea is to create a FontInfo object with a font name pattern with a
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wildcard at the size field. Then this object can host request for font-
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instances of any given size. If no exact match is found, the closest size
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is chosen instead. If the font is scalable, the flag lyxrc->use_scalable_fonts
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determines whether to allow scalable fonts to give an exact match. */
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class FontInfo {
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public:
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///
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FontInfo() { init(); }
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///
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FontInfo(LString const & pat)
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: pattern(pat) { init(); }
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/// Destructor
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~FontInfo() { release(); }
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/// Does any font match our pattern?
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bool exist() {
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query();
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return matches != 0;
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}
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/// Is this font scalable?
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bool isScalable() {
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query();
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return scalable;
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}
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/// Get existing pattern
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LString getPattern() const { return pattern; }
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/// Set new pattern
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void setPattern(LString const & pat);
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/** Return full name of font close to this size.
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If impossible, result is the empty string */
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LString getFontname(int size);
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private:
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/// Font pattern (with wildcard for size)
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LString pattern;
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/// Available size list
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int * sizes;
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/// Corresponding name list
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LString * strings;
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/// Number of matches
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int matches;
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/// Did we query X about this font?
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bool queried;
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/// Is this font scalable?
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bool scalable;
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/// Which index points to scalable font entry?
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int scaleindex;
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/// Initialize empty record
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void init()
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{
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sizes = 0;
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strings = 0;
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matches = 0;
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queried = false;
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scalable = false;
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scaleindex = -1;
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}
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/// Release allocated stuff
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void release();
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/// Ask X11 about this font pattern
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void query();
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/// Build newly sized font string
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LString resize(LString const &, int size) const;
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};
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#endif
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