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/* $XTermId: fontutils.h,v 1.142 2022/10/23 14:47:45 tom Exp $ */
/*
* Copyright 1998-2021,2022 by Thomas E. Dickey
*
* All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the
* sale, use or other dealings in this Software without prior written
* authorization.
*/
#ifndef included_fontutils_h
#define included_fontutils_h 1
#include <xterm.h>
/* *INDENT-OFF* */
extern Bool xtermLoadDefaultFonts (XtermWidget /* xw */);
extern Bool xtermOpenFont (XtermWidget /* xw */, const char */* name */, XTermFonts * /* result */, XTermFonts * /* current */, Bool /* force */);
extern XFontStruct * xtermLoadQueryFont(XtermWidget /* xw */, const char * /*name */);
extern XTermFonts * getDoubleFont (TScreen * /* screen */, int /* which */);
extern XTermFonts * getItalicFont (TScreen * /* screen */, int /* which */);
extern XTermFonts * getNormalFont (TScreen * /* screen */, int /* which */);
extern const VTFontNames * defaultVTFontNames(XtermWidget /* xw */);
extern const VTFontNames * xtermFontName (const char */* normal */);
extern const char * whichFontEnum (VTFontEnum /* value */);
extern const char * whichFontList (XtermWidget /* xw */, VTFontList * /* value */);
extern const char * whichFontList2(XtermWidget /* xw */, char ** /* value */);
extern int lookupRelativeFontSize (XtermWidget /* xw */, int /* old */, int /* relative */);
extern int xtermGetFont (const char * /* param */);
extern int xtermLoadFont (XtermWidget /* xw */, const VTFontNames */* fonts */, Bool /* doresize */, int /* fontnum */);
extern void HandleSetFont PROTO_XT_ACTIONS_ARGS;
extern Bool SetVTFont (XtermWidget /* xw */, int /* i */, Bool /* doresize */, const VTFontNames */* fonts */);
extern void allocFontList (XtermWidget /* xw */, const char * /* name */, XtermFontNames * /* target */, VTFontEnum /* which */, const char * /* source */, Bool /* ttf */);
extern void copyFontList (char *** /* targetp */, char ** /* source */);
extern void initFontLists (XtermWidget /* xw */);
extern void freeFontList (char *** /* targetp */);
extern void freeFontLists (VTFontList * /* lists */);
extern void xtermCloseFont (XtermWidget /* xw */, XTermFonts * /* fnt */);
extern void xtermCloseFonts (XtermWidget /* xw */, XTermFonts * /* fnts[fMAX] */);
extern void xtermComputeFontInfo (XtermWidget /* xw */, VTwin */* win */, XFontStruct */* font */, int /* sbwidth */);
extern void xtermCopyFontInfo (XTermFonts * /* target */, XTermFonts * /* source */);
extern void xtermDerivedFont (const char * /* name */);
extern void xtermFreeFontInfo (XTermFonts * /* target */);
extern void xtermSetCursorBox (TScreen * /* screen */);
extern void xtermUpdateFontGCs (XtermWidget /* xw */, MyGetFont /* myfunc */);
extern void xtermUpdateFontInfo (XtermWidget /* xw */, Bool /* doresize */);
#define getIconicFont(screen) (&((screen)->fnt_icon))
/* use these when "which" is constant, or known in-limits */
#define GetNormalFont(screen, which) (&((screen)->fnts[which]))
#define GetDoubleFont(screen, which) (&((screen)->double_fonts[which]))
#if OPT_WIDE_ATTRS
#define GetItalicFont(screen, which) (&((screen)->ifnts[which]))
#else
#define GetItalicFont(screen, which) 0
#endif
#define FirstItemOf(vector) ((vector) ? (vector)[0] : 0)
#define CurrentXftFont(xw) ((xw)->work.fonts.xft.list_n[0])
#define DefaultFontN(xw) ((xw)->work.fonts.x11.list_n[0])
#define DefaultFontB(xw) ((xw)->work.fonts.x11.list_b[0])
#define DefaultFontW(xw) ((xw)->work.fonts.x11.list_w[0])
#define DefaultFontWB(xw) ((xw)->work.fonts.x11.list_wb[0])
#if OPT_DEC_CHRSET
extern char *xtermSpecialFont (XTermDraw * /* params */);
#endif
#define FontLacksMetrics(font) \
((font)->fs != 0 \
&& ((font)->fs->per_char == 0))
#define FontIsIncomplete(font) \
((font)->fs != 0 \
&& (font)->fs->per_char != 0 \
&& !(font)->fs->all_chars_exist)
#if OPT_BOX_CHARS
#define ForceBoxChars(screen,ch) \
(xtermIsDecGraphic(ch) \
&& (screen)->force_box_chars)
/*
* Keep track of (some) characters to make the check for missing
* characters faster. If the character is known to be missing,
* the cache value is '2'. If we have checked the character, the
* cached value is '1'.
*/
#if OPT_WIDE_CHARS
#define CheckedKnownMissing(font, ch) \
(((ch) < MaxUChar) && ((font)->known_missing[(Char)(ch)] > 0))
#else
#define CheckedKnownMissing(font, ch) \
((font)->known_missing[(Char)(ch)] > 0)
#endif
#define IsXtermMissingChar(screen, ch, font) \
(CheckedKnownMissing(font, ch) \
? ((font)->known_missing[(Char)(ch)] > 1) \
: ((FontIsIncomplete(font) && xtermMissingChar(ch, font)) \
|| ForceBoxChars(screen, ch)))
extern void xtermDrawBoxChar (XTermDraw * /* params */, unsigned /* ch */, GC /* gc */, int /* x */, int /* y */, int /* cols */, Bool /* xftords */);
#else
#define IsXtermMissingChar(screen, ch, font) False
#endif
#if OPT_BOX_CHARS || OPT_REPORT_FONTS
extern Bool xtermMissingChar (unsigned /* ch */, XTermFonts */* font */);
#endif
#if OPT_LOAD_VTFONTS
extern void HandleLoadVTFonts PROTO_XT_ACTIONS_ARGS;
#endif
#if OPT_LOAD_VTFONTS || OPT_WIDE_CHARS
extern Bool xtermLoadWideFonts (XtermWidget /* w */, Bool /* nullOk */);
extern void xtermSaveVTFonts (XtermWidget /* xw */);
#endif
#define xtermIsDecGraphic(ch) ((ch) > 0 && (ch) < 32)
#if OPT_RENDERFONT
extern Boolean maybeXftCache(XtermWidget /* xw */, XftFont * /* font */);
extern Bool xtermXftMissing (XtermWidget /* xw */, XTermXftFonts * /* fontData */, int /* fontNum */, XftFont * /* font */, unsigned /* wc */);
extern XTermXftFonts *getMyXftFont (XtermWidget /* xw */, int /* which */, int /* fontnum */);
extern const char * whichXftFonts(XtermWidget /* xw */, XTermXftFonts * /* data */);
extern int findXftGlyph (XtermWidget /* xw */, XTermXftFonts * /* fontData */, unsigned /* wc */);
extern XftFont *getXftFont (XtermWidget /* xw */, VTFontEnum /* which */, int /* fontnum */);
extern void closeCachedXft (TScreen * /* screen */, XftFont * /* font */);
extern void xtermCloseXft (TScreen * /* screen */, XTermXftFonts * /* pub */);
#if OPT_DEC_CHRSET
extern void getDoubleXftFont(XTermDraw * /* params */, XTermXftFonts * /* fontData */, unsigned /* chrset */, unsigned /* attr_flags */);
#endif
#endif
#if OPT_SHIFT_FONTS
extern String getFaceName (XtermWidget /* xw */, Bool /* wideName */);
extern void HandleLargerFont PROTO_XT_ACTIONS_ARGS;
extern void HandleSmallerFont PROTO_XT_ACTIONS_ARGS;
extern void setFaceName (XtermWidget /* xw */, const char * /*value */);
#endif
#if OPT_WIDE_ATTRS
extern unsigned xtermUpdateItalics (XtermWidget /* xw */, unsigned /* new_attrs */, unsigned /* old_attrs */);
extern void xtermLoadItalics (XtermWidget /* xw */);
#endif
#if OPT_WIDE_CHARS
extern unsigned ucs2dec (TScreen * /* screen */, unsigned /* ch */);
extern unsigned dec2ucs (TScreen * /* screen */, unsigned /* ch */);
#endif
/* *INDENT-ON* */
#endif /* included_fontutils_h */
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