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658 lines
31 KiB
C
658 lines
31 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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fonts.h --- fonts, font selector, and related stuff
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Created: Erik van der Poel <erik@netscape.com>, 6-Oct-95.
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*/
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#ifndef __xfe_fonts_h_
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#define __xfe_fonts_h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "xp_core.h"
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#include <lo_ele.h>
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#include <X11/Xlib.h>
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XP_BEGIN_PROTOS
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/*
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* defines
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*/
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#define FE_FONT_TYPE_NONE 0x0
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#define FE_FONT_TYPE_X8 0x1
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#define FE_FONT_TYPE_X16 0x2
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#define FE_FONT_TYPE_GROUP 0x4
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#ifndef NO_WEB_FONTS
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#define FE_FONT_TYPE_RENDERABLE 0x8
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#endif
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/* the following are macros so that we avoid the overhead of function calls */
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#ifndef NO_WEB_FONTS
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#define FE_TEXT_EXTENTS(charset, font, string, len, fontAscent, fontDescent, \
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overall) \
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do \
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{ \
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int direction; \
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fe_Font platform_font; \
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int font_type; \
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\
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platform_font = ((fe_FontWrap *) font)->platform_font; \
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font_type = ((fe_FontWrap *) font)->distinguisher; \
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\
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if (FE_FONT_TYPE_X8 == font_type) \
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{ \
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XTextExtents(((XFontStruct *) platform_font), \
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(string), (len), &direction, \
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(fontAscent), (fontDescent), (overall)); \
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} \
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else if (FE_FONT_TYPE_X16 == font_type) \
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{ \
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XTextExtents16(((XFontStruct *) platform_font), \
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(XChar2b *) (string), (len)/2, &direction, \
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(fontAscent), (fontDescent), (overall)); \
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} \
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else if (FE_FONT_TYPE_GROUP == font_type) \
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{ \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].textExtents)(platform_font, (string), (len), \
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&direction, (fontAscent), (fontDescent), (overall)); \
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} \
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else \
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{ \
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(overall)->width = nfrf_MeasureText(((struct nfrf *) \
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platform_font), NULL, 0, string, len, NULL, 0, NULL); \
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*(fontAscent) = \
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nfrf_GetFontAscent(((struct nfrf *) platform_font), NULL); \
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*(fontDescent) = \
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nfrf_GetFontDescent(((struct nfrf *) platform_font), NULL); \
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(overall)->rbearing = (overall)->width; \
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(overall)->lbearing = 0; \
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(overall)->ascent = *(fontAscent); \
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(overall)->descent = *(fontDescent); \
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} \
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} while (0)
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#else
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#define FE_TEXT_EXTENTS(charset, font, string, len, fontAscent, fontDescent, \
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overall) \
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do \
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{ \
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int direction; \
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int type; \
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\
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type = fe_CharSetInfoArray[(charset) & 0xff].type; \
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\
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if (type == FE_FONT_TYPE_X8) \
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{ \
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XTextExtents((font), (string), (len), &direction, \
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(fontAscent), (fontDescent), (overall)); \
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} \
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else if (type == FE_FONT_TYPE_X16) \
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{ \
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XTextExtents16((font), (XChar2b *) (string), (len)/2, \
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&direction, (fontAscent), (fontDescent), (overall)); \
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} \
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else \
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{ \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].textExtents)((font), (string), (len), \
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&direction, (fontAscent), (fontDescent), (overall)); \
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} \
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} while (0)
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#endif
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#ifndef NO_WEB_FONTS
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#define FE_FONT_EXTENTS(charset, font, fontAscent, fontDescent) \
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do \
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{ \
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fe_Font platform_font; \
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int font_type; \
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\
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platform_font = ((fe_FontWrap *) font)->platform_font; \
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font_type = ((fe_FontWrap *) font)->distinguisher; \
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\
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if ((FE_FONT_TYPE_X8 == font_type) || (FE_FONT_TYPE_X16 == font_type))\
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{ \
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*(fontAscent) = ((XFontStruct *) platform_font)->ascent; \
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*(fontDescent) = ((XFontStruct *) platform_font)->descent; \
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} \
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else if (FE_FONT_TYPE_GROUP == font_type) \
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{ \
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fe_GenericFontExtents(charset, platform_font, \
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(fontAscent), (fontDescent)); \
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} \
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else \
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{ \
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*(fontAscent) = \
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nfrf_GetFontAscent(((struct nfrf *) platform_font), \
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NULL); \
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*(fontDescent) = \
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nfrf_GetFontDescent(((struct nfrf *) platform_font), \
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NULL); \
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} \
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} while (0)
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#else
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#define FE_FONT_EXTENTS(charset, font, fontAscent, fontDescent) \
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do \
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{ \
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fe_CharSetInfo *info; \
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\
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info = &fe_CharSetInfoArray[(charset) & 0xff]; \
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\
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if (info->type == FE_FONT_TYPE_GROUP) \
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{ \
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fe_GenericFontExtents(charset, (font), \
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(fontAscent), (fontDescent)); \
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} \
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else \
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{ \
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*(fontAscent) = ((XFontStruct *) (font))->ascent; \
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*(fontDescent) = ((XFontStruct *) (font))->descent; \
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} \
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} while (0)
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#endif
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#ifndef NO_WEB_FONTS
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#define FE_DRAW_STRING(charset, dpy, d, font, gc, x, y, string, len) \
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do \
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{ \
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int font_type; \
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fe_Font platform_font; \
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\
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font_type = ((fe_FontWrap *) font)->distinguisher; \
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platform_font = ((fe_FontWrap *) font)->platform_font; \
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\
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if (FE_FONT_TYPE_X8 == font_type) \
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{ \
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XDrawString((dpy), (d), (gc), (x), (y), (string), \
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(len)); \
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} \
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else if (FE_FONT_TYPE_X16 == font_type) \
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{ \
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XDrawString16((dpy), (d), (gc), (x), (y), \
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(XChar2b *) (string), (len)/2); \
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} \
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else if (FE_FONT_TYPE_GROUP == font_type) \
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{ \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].drawString)((dpy), (d), platform_font, \
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(gc), (x), (y), (string), (len)); \
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} \
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else \
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{ \
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struct nfrc * rc; \
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void * rcbuf[4]; \
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\
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rcbuf[0] = (dpy); \
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rcbuf[1] = (void *) (d); \
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rcbuf[2] = (gc); \
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rc = nffbu_CreateRenderingContext(fe_FontUtility, \
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NF_RC_DIRECT, 0, rcbuf, 3, \
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NULL); \
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(void) nfrf_DrawText(((struct nfrf *) platform_font), rc, \
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(x), (y), 0, (string), (len), NULL); \
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nfrc_release(rc, NULL); \
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} \
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} while (0)
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#else
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#define FE_DRAW_STRING(charset, dpy, d, font, gc, x, y, string, len) \
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do \
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{ \
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int type; \
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\
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type = fe_CharSetInfoArray[(charset) & 0xff].type; \
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\
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if (type == FE_FONT_TYPE_X8) \
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{ \
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XDrawString((dpy), (d), (gc), (x), (y), (string), \
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(len)); \
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} \
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else if (type == FE_FONT_TYPE_X16) \
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{ \
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XDrawString16((dpy), (d), (gc), (x), (y), \
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(XChar2b *) (string), (len)/2); \
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} \
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else \
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{ \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].drawString)((dpy), (d), (font), \
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(gc), (x), (y), (string), (len)); \
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} \
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} while (0)
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#endif
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#ifndef NO_WEB_FONTS
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#define FE_DRAW_IMAGE_STRING(charset, dpy, d, font, gc, gc2, x, y, string, len) \
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do \
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{ \
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int font_type; \
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fe_Font platform_font; \
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\
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font_type = ((fe_FontWrap *) font)->distinguisher; \
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platform_font = ((fe_FontWrap *) font)->platform_font; \
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\
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if (FE_FONT_TYPE_X8 == font_type) \
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{ \
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XDrawImageString((dpy), (d), (gc), (x), (y), \
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(string), (len)); \
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} \
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else if (FE_FONT_TYPE_X16 == font_type) \
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{ \
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XDrawImageString16((dpy), (d), (gc), (x), (y), \
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(XChar2b *) (string), (len)/2); \
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} \
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else if (FE_FONT_TYPE_GROUP == font_type) \
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{ \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].drawImageString)((dpy), (d), platform_font, \
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(gc), (gc2), (x), (y), (string), (len)); \
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} \
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else \
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{ \
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struct nfrc *rc; \
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void * rcbuf[4]; \
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\
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rcbuf[0] = (dpy); \
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rcbuf[1] = (void *) (d); \
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rcbuf[2] = (gc); \
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rcbuf[3] = (void *)(NF_DrawImageTextMask); \
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rc = nffbu_CreateRenderingContext(fe_FontUtility, \
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NF_RC_DIRECT, \
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0, rcbuf, 4, NULL); \
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(void) nfrf_DrawText(((struct nfrf *) platform_font), rc, \
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(x), (y), 0, (string), (len), NULL); \
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nfrc_release(rc, NULL); \
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} \
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} while (0)
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#else
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#define FE_DRAW_IMAGE_STRING(charset, dpy, d, font, gc, gc2, x, y, string, len) \
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do \
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{ \
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int type; \
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\
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type = fe_CharSetInfoArray[(charset) & 0xff].type; \
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\
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if (type == FE_FONT_TYPE_X8) \
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{ \
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XDrawImageString((dpy), (d), (gc), (x), (y), (string), \
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(len)); \
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} \
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else if (type == FE_FONT_TYPE_X16) \
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{ \
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XDrawImageString16((dpy), (d), (gc), (x), (y), \
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(XChar2b *) (string), (len)/2); \
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} \
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else \
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{ \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].drawImageString)((dpy), (d), \
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(font), (gc), (gc2), (x), (y), (string), (len)); \
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} \
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} while (0)
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#endif
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#ifndef NO_WEB_FONTS
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#define FE_SET_GC_FONT(charset, gc, font, flags) \
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do \
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{ \
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int font_type; \
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fe_Font platform_font; \
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\
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font_type = ((fe_FontWrap *) font)->distinguisher; \
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platform_font = ((fe_FontWrap *) font)->platform_font; \
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\
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if ((FE_FONT_TYPE_X8 == font_type) || \
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(FE_FONT_TYPE_X16 == font_type)) \
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{ \
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(gc)->font = ((XFontStruct *) platform_font)->fid; \
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*(flags) |= GCFont; \
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} \
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} while (0)
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#else
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#define FE_SET_GC_FONT(charset, gc, font, flags) \
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do \
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{ \
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fe_CharSetInfo *info; \
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\
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info = &fe_CharSetInfoArray[(charset) & 0xff]; \
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\
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if (info->type != FE_FONT_TYPE_GROUP) \
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{ \
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(gc)->font = ((XFontStruct *) (font))->fid; \
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*(flags) |= GCFont; \
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} \
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} while (0)
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#endif
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#ifndef NO_WEB_FONTS
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#define FE_NONEDIT_FONTLIST(charset, font, fontlist) \
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do \
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{ \
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fe_Font platform_font; \
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\
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fe_CharSetFuncs entry = \
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fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff].info]; \
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\
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platform_font = ((fe_FontWrap *) font)->platform_font; \
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\
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(fontlist) = \
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(* (entry.nonEditGetFontList))(charset, platform_font, \
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(int)entry.numberOfFonts); \
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} while(0)
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#else
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#define FE_NONEDIT_FONTLIST(charset, font, fontlist) \
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do \
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{ \
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fe_CharSetFuncs entry = \
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fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff].info]; \
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\
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(fontlist) = \
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(* (entry.nonEditGetFontList))( charset, font, \
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(int) entry.numberOfFonts); \
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} while(0)
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#endif
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#ifndef NO_WEB_FONTS
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#define FE_NONEDIT_TO_XMSTRING(charset, font, string, len) \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].nonEditToXmString)( (charset), \
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(fe_Font) (((fe_FontWrap *) font)->platform_font), \
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(string), \
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(len) \
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)
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#else
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#define FE_NONEDIT_TO_XMSTRING(charset, font, string, len) \
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(*fe_CharSetFuncsArray[fe_CharSetInfoArray[(charset) & 0xff]. \
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info].nonEditToXmString)((charset), \
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(fe_Font)(font), \
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(string), \
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(len) \
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)
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#endif
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/*
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* typedefs and structs
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*/
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#ifndef NO_WEB_FONTS
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typedef struct fe_FontWrap
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{
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unsigned char distinguisher;
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void * platform_font;
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} fe_FontWrap;
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#endif
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typedef void *fe_Font;
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typedef struct fe_FontFace fe_FontFace;
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struct fe_FontFace
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{
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fe_FontFace *next;
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char *longXLFDFontName;
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fe_Font font;
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fe_Font javafont;
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XP_Bool loaded;
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};
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typedef struct fe_FontSize fe_FontSize;
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struct fe_FontSize
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{
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fe_FontSize *next;
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int size;
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/* whether the user has selected this size in preferences */
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unsigned int selected : 1;
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/* whether this record is in the css pool */
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unsigned int in_pool: 1;
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/* 0 = normal, 1 = bold, 2 = italic, 3 = boldItalic */
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fe_FontFace *faces[4];
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};
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typedef struct fe_FontFamily
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{
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/* displayed name of this family/foundry */
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char *name;
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/* XLFD name of foundry */
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char *foundry;
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/* XLFD name of family */
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char *family;
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/* whether the user has selected this family in preferences */
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unsigned int selected : 1;
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/* whether not to allow scaling for this family */
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unsigned int allowScaling : 1;
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/* whether the htmlSizes have been computer or not */
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unsigned int htmlSizesComputed : 1;
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/* one for each document size, 1-7 */
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fe_FontSize *htmlSizes[7];
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/* selected size if scaled font */
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int scaledSize;
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/* pointer to all pixel sizes within this family */
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fe_FontSize *pixelSizes;
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/* allocated size of pixelSizes array */
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short pixelAlloc;
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/* actual number of pixel sizes */
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short numberOfPixelSizes;
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/* pointer to all point sizes within this family */
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fe_FontSize *pointSizes;
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/* allocated size of pointSizes array */
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short pointAlloc;
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/* actual number of point sizes */
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short numberOfPointSizes;
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/* pointer to list of temporarily instantiated point sizes */
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fe_FontSize *pool;
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} fe_FontFamily;
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/* one for each pitch: proportional and fixed */
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typedef struct fe_FontPitch
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{
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/* pointer to size menu for this pitch */
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Widget sizeMenu;
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/* pointer to all families of this charset/pitch */
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fe_FontFamily *families;
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/* allocated size of families array */
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short alloc;
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/* actual number of families */
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short numberOfFamilies;
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/* selected family */
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fe_FontFamily *selectedFamily;
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} fe_FontPitch;
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/* we have one of these per charset */
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typedef struct fe_FontCharSet
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{
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/* displayed name of this charset */
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char *name;
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/* official MIME name of this charset */
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char *mimeName;
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/* whether the user has selected this one in the preferences */
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unsigned int selected : 1;
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|
|
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/* the two pitches: 0 = proportional and 1 = fixed */
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fe_FontPitch pitches[2];
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} fe_FontCharSet;
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|
|
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typedef struct fe_CharSetInfo
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{
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int16 charsetID;
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unsigned char type;
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unsigned char info;
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} fe_CharSetInfo;
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|
|
|
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typedef XP_Bool (*fe_AreFontsAvailFunc)(int16 win_csid);
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typedef fe_Font (*fe_LoadFontFunc)(MWContext *context, char *familyName,
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int points, int sizeNum, int fontmask, int charset, int pitch,
|
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int faceNum, Display *dpy);
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|
typedef void (*fe_TextExtentsFunc)(fe_Font font, char *string, int len,
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int *dir, int *fontAscent, int *fontDescent, XCharStruct *overall);
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typedef void (*fe_DrawStringFunc)(Display *dpy, Drawable d, fe_Font font,
|
|
GC gc, int x, int y, char *string, int len);
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|
typedef void (*fe_DrawImageStringFunc)(Display *dpy, Drawable d, fe_Font font,
|
|
GC gc, GC gc2, int x, int y, char *string, int len);
|
|
typedef XmFontList (*fe_GetFontList)(int16 charset, fe_Font font, int numOfFont);
|
|
typedef XmString (*fe_ToXmString)(int16 charset, fe_Font font, char* string, int len );
|
|
|
|
typedef struct fe_CharSetFuncs
|
|
{
|
|
unsigned char numberOfFonts;
|
|
fe_AreFontsAvailFunc areFontsAvail;
|
|
fe_LoadFontFunc loadFont;
|
|
fe_TextExtentsFunc textExtents;
|
|
fe_DrawStringFunc drawString;
|
|
fe_DrawImageStringFunc drawImageString;
|
|
fe_GetFontList nonEditGetFontList;
|
|
fe_ToXmString nonEditToXmString;
|
|
} fe_CharSetFuncs;
|
|
|
|
|
|
typedef struct fe_FontSettings fe_FontSettings;
|
|
|
|
struct fe_FontSettings
|
|
{
|
|
fe_FontSettings *next;
|
|
char *spec;
|
|
};
|
|
|
|
|
|
/*
|
|
* public data
|
|
*/
|
|
|
|
extern fe_FontCharSet fe_FontCharSets[];
|
|
|
|
extern unsigned char fe_SortedFontCharSets[];
|
|
|
|
extern fe_CharSetInfo fe_CharSetInfoArray[];
|
|
|
|
extern fe_CharSetFuncs fe_CharSetFuncsArray[];
|
|
|
|
#ifndef NO_WEB_FONTS
|
|
extern struct nffbu * fe_FontUtility;
|
|
#endif
|
|
|
|
/*
|
|
* public functions
|
|
*/
|
|
XP_Bool fe_IsCharSetSupported(int16 doc_csid);
|
|
XP_Bool fe_AreFontsAvail(int16 win_csid);
|
|
|
|
fe_Font fe_LoadUnicodeFont(void *, char *familyName, int points,
|
|
int sizeNum, int fontmask, int charset,
|
|
int pitch, int faceNum, Display *dpy);
|
|
void fe_FreeUnicodeFonts(void);
|
|
|
|
XmString fe_utf8_to_XmString(fe_Font, char *, int, XmFontList *);
|
|
|
|
void fe_ComputeFontSizeTable(fe_FontFamily *family);
|
|
|
|
void fe_FreeFontGroups(void);
|
|
|
|
void fe_FreeFonts(void);
|
|
|
|
void fe_FreeFontSettings(fe_FontSettings *set);
|
|
|
|
void fe_FreeFontSizeTable(fe_FontFamily *family);
|
|
|
|
void fe_GenericFontExtents(int num, fe_Font font, int *fontAscent,
|
|
int *fontDescent);
|
|
|
|
char *fe_GetFontCharSetSetting(void);
|
|
|
|
XtPointer fe_GetFont(MWContext *context, int sizeNum, int fontmask);
|
|
|
|
XtPointer fe_GetFontOrFontSet(MWContext *context, char *familyName,
|
|
int sizeNum, int fontmask, XmFontType *type);
|
|
|
|
XtPointer fe_GetFontOrFontSetFromFace(MWContext *context, LO_TextAttr *attr,
|
|
char *net_font_face, int sizeNum,
|
|
int fontmask, XmFontType *type);
|
|
|
|
fe_FontSettings *fe_GetFontSettings(void);
|
|
|
|
int fe_GetStrikePosition(int charset, fe_Font font);
|
|
|
|
int fe_GetUnderlinePosition(int charset);
|
|
|
|
void fe_InitFonts(Display *dpy);
|
|
|
|
#ifndef NO_WEB_FONTS
|
|
extern void fe_DoneWithFont(fe_Font font);
|
|
#endif
|
|
|
|
fe_Font fe_LoadFontFromFace(MWContext *context, LO_TextAttr *attr, int16 *charset,
|
|
char *net_font_face, int size, int fontmask);
|
|
|
|
void fe_ReadFontCharSet(char *charset);
|
|
|
|
void fe_ReadFontSpec(char *spec);
|
|
|
|
void fe_SetFontSettings(fe_FontSettings *set);
|
|
|
|
XP_END_PROTOS
|
|
int fe_WebfontsNeedReload(MWContext *context);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __xfe_fonts_h_ */
|