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