179 lines
7.6 KiB
C
179 lines
7.6 KiB
C
/* $XTermId: fontutils.h,v 1.134 2019/11/12 10:05:06 tom Exp $ */
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/*
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* Copyright 1998-2018,2019 by Thomas E. Dickey
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*
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* All Rights Reserved
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name(s) of the above copyright
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* holders shall not be used in advertising or otherwise to promote the
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* sale, use or other dealings in this Software without prior written
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* authorization.
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*/
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#ifndef included_fontutils_h
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#define included_fontutils_h 1
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#include <xterm.h>
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/* *INDENT-OFF* */
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extern Bool xtermLoadDefaultFonts (XtermWidget /* xw */);
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extern Bool xtermOpenFont (XtermWidget /* xw */, const char */* name */, XTermFonts * /* result */, Bool /* force */);
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extern XTermFonts * getDoubleFont (TScreen * /* screen */, int /* which */);
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extern XTermFonts * getItalicFont (TScreen * /* screen */, int /* which */);
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extern XTermFonts * getNormalFont (TScreen * /* screen */, int /* which */);
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extern const VTFontNames * defaultVTFontNames(XtermWidget /* xw */);
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extern const VTFontNames * xtermFontName (const char */* normal */);
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extern const char * whichFontEnum (VTFontEnum /* value */);
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extern const char * whichFontList (XtermWidget /* xw */, VTFontList * /* value */);
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extern const char * whichFontList2(XtermWidget /* xw */, char ** /* value */);
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extern int lookupRelativeFontSize (XtermWidget /* xw */, int /* old */, int /* relative */);
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extern int xtermGetFont (const char * /* param */);
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extern int xtermLoadFont (XtermWidget /* xw */, const VTFontNames */* fonts */, Bool /* doresize */, int /* fontnum */);
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extern void HandleSetFont PROTO_XT_ACTIONS_ARGS;
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extern void SetVTFont (XtermWidget /* xw */, int /* i */, Bool /* doresize */, const VTFontNames */* fonts */);
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extern void allocFontList (XtermWidget /* xw */, const char * /* name */, XtermFontNames * /* target */, VTFontEnum /* which */, const char * /* source */, Bool /* ttf */);
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extern void copyFontList (char *** /* targetp */, char ** /* source */);
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extern void initFontLists (XtermWidget /* xw */);
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extern void freeFontList (char *** /* targetp */);
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extern void freeFontLists (VTFontList * /* lists */);
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extern void xtermCloseFont (XtermWidget /* xw */, XTermFonts * /* fnt */);
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extern void xtermCloseFonts (XtermWidget /* xw */, XTermFonts * /* fnts[fMAX] */);
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extern void xtermComputeFontInfo (XtermWidget /* xw */, VTwin */* win */, XFontStruct */* font */, int /* sbwidth */);
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extern void xtermCopyFontInfo (XTermFonts * /* target */, XTermFonts * /* source */);
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extern void xtermDerivedFont (const char * /* name */);
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extern void xtermFreeFontInfo (XTermFonts * /* target */);
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extern void xtermSetCursorBox (TScreen * /* screen */);
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extern void xtermUpdateFontGCs (XtermWidget /* xw */, MyGetFont /* myfunc */);
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extern void xtermUpdateFontInfo (XtermWidget /* xw */, Bool /* doresize */);
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#define getIconicFont(screen) (&((screen)->fnt_icon))
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/* use these when "which" is constant, or known in-limits */
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#define GetNormalFont(screen, which) (&((screen)->fnts[which]))
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#define GetDoubleFont(screen, which) (&((screen)->double_fonts[which]))
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#if OPT_WIDE_ATTRS
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#define GetItalicFont(screen, which) (&((screen)->ifnts[which]))
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#else
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#define GetItalicFont(screen, which) 0
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#endif
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#define FirstItemOf(vector) ((vector) ? (vector)[0] : 0)
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#define CurrentXftFont(xw) ((xw)->work.fonts.xft.list_n[0])
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#define DefaultFontN(xw) ((xw)->work.fonts.x11.list_n[0])
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#define DefaultFontB(xw) ((xw)->work.fonts.x11.list_b[0])
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#define DefaultFontW(xw) ((xw)->work.fonts.x11.list_w[0])
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#define DefaultFontWB(xw) ((xw)->work.fonts.x11.list_wb[0])
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#if OPT_DEC_CHRSET
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extern char *xtermSpecialFont (XTermDraw * /* params */);
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#endif
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#define FontLacksMetrics(font) \
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((font)->fs != 0 \
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&& ((font)->fs->per_char == 0))
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#define FontIsIncomplete(font) \
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((font)->fs != 0 \
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&& (font)->fs->per_char != 0 \
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&& !(font)->fs->all_chars_exist)
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#if OPT_BOX_CHARS
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#define ForceBoxChars(screen,ch) \
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(xtermIsDecGraphic(ch) \
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&& (screen)->force_box_chars)
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/*
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* Keep track of (some) characters to make the check for missing
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* characters faster. If the character is known to be missing,
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* the cache value is '2'. If we have checked the character, the
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* cached value is '1'.
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*/
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#if OPT_WIDE_CHARS
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#define CheckedKnownMissing(font, ch) \
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(((ch) < KNOWN_MISSING) && ((font)->known_missing[(Char)(ch)] > 0))
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#else
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#define CheckedKnownMissing(font, ch) \
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((font)->known_missing[(Char)(ch)] > 0)
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#endif
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#define IsXtermMissingChar(screen, ch, font) \
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(CheckedKnownMissing(font, ch) \
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? ((font)->known_missing[(Char)(ch)] > 1) \
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: ((FontIsIncomplete(font) && xtermMissingChar(ch, font)) \
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|| ForceBoxChars(screen, ch)))
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extern void xtermDrawBoxChar (XTermDraw * /* params */, unsigned /* ch */, GC /* gc */, int /* x */, int /* y */, int /* cols */);
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#else
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#define IsXtermMissingChar(screen, ch, font) False
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#endif
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#if OPT_BOX_CHARS || OPT_REPORT_FONTS
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extern Bool xtermMissingChar (unsigned /* ch */, XTermFonts */* font */);
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#endif
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#if OPT_LOAD_VTFONTS
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extern void HandleLoadVTFonts PROTO_XT_ACTIONS_ARGS;
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#endif
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#if OPT_LOAD_VTFONTS || OPT_WIDE_CHARS
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extern Bool xtermLoadWideFonts (XtermWidget /* w */, Bool /* nullOk */);
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extern void xtermSaveVTFonts (XtermWidget /* xw */);
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#endif
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#define xtermIsDecGraphic(ch) ((ch) > 0 && (ch) < 32)
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#if OPT_RENDERFONT
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extern Boolean maybeXftCache(XtermWidget /* xw */, XftFont * /* font */);
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extern Bool xtermXftMissing (XtermWidget /* xw */, XftFont * /* font */, unsigned /* wc */);
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extern XTermXftFonts *getMyXftFont (XtermWidget /* xw */, int /* which */, int /* fontnum */);
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extern XftFont *findXftGlyph (XtermWidget /* xw */, XftFont * /* given */, unsigned /* wc */);
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extern XftFont *getXftFont (XtermWidget /* xw */, VTFontEnum /* which */, int /* fontnum */);
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extern void closeCachedXft (TScreen * /* screen */, XftFont * /* font */);
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extern void xtermCloseXft (TScreen * /* screen */, XTermXftFonts * /* pub */);
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#if OPT_DEC_CHRSET
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extern XftFont * getDoubleXftFont(XTermDraw * /* params */, unsigned /* chrset */, unsigned /* attr_flags */);
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#endif
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#endif
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#if OPT_SHIFT_FONTS
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extern String getFaceName (XtermWidget /* xw */, Bool /* wideName */);
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extern void HandleLargerFont PROTO_XT_ACTIONS_ARGS;
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extern void HandleSmallerFont PROTO_XT_ACTIONS_ARGS;
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extern void setFaceName (XtermWidget /* xw */, const char * /*value */);
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#endif
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#if OPT_WIDE_ATTRS
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extern unsigned xtermUpdateItalics (XtermWidget /* xw */, unsigned /* new_attrs */, unsigned /* old_attrs */);
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extern void xtermLoadItalics (XtermWidget /* xw */);
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#endif
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#if OPT_WIDE_CHARS
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extern unsigned ucs2dec (TScreen * /* screen */, unsigned /* ch */);
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extern unsigned dec2ucs (TScreen * /* screen */, unsigned /* ch */);
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#endif
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/* *INDENT-ON* */
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#endif /* included_fontutils_h */
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