/*========================================================================*\ Copyright (c) 1990-1999 Paul Vojta 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 PAUL VOJTA 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. NOTE: xdvi is based on prior work, as noted in the modification history in xdvi.c. \*========================================================================*/ #define HAVE_BOOLEAN #include "xdvi-config.h" #include #include #include #include #include "dvi.h" #if defined(HTEX) && !defined(WIN32) #include "HTEscape.h" #endif #include #define PK_PRE 247 #define PK_ID 89 #define PK_MAGIC (PK_PRE << 8) + PK_ID #define GF_PRE 247 #define GF_ID 131 #define GF_MAGIC (GF_PRE << 8) + GF_ID #define VF_PRE 247 #define VF_ID_BYTE 202 #define VF_MAGIC (VF_PRE << 8) + VF_ID_BYTE #define dvi_oops(str) (dvi_oops_msg = (str), longjmp(dvi_env, 1)) #ifdef SELFILE extern void set_icon_and_title (); /* from xdvi.c */ extern void home (); /* from events.c */ #endif static struct stat fstatbuf; static Boolean font_not_found; /* * DVI preamble and postamble information. */ static char job_id[300]; static long numerator, denominator; /* * Offset in DVI file of last page, set in read_postamble(). */ static long last_page_offset; #ifdef HTEX extern int this_is_a_href; #else int this_is_a_href = 0; #endif /* * free_vf_chain frees the vf_chain structure. */ static void free_vf_chain(tnp) struct tn *tnp; { while (tnp != NULL) { struct tn *tnp1 = tnp->next; free((char *) tnp); tnp = tnp1; } } /* * Release all shrunken bitmaps for all fonts. */ void reset_fonts() { struct font *f; struct glyph *g; for (f = font_head; f != NULL; f = f->next) if ((f->flags & FONT_LOADED) && !(f->flags & FONT_VIRTUAL)) { #if TTF if (f->ttfid>=0) { continue; } #endif #if T1 if (f->t1id>=0) { /* Type1 font, all glyps in t1lib structures only */ T1_DeleteAllSizes(f->t1id); continue; } #endif if (f->glyph) { for (g = f->glyph; g <= f->glyph + f->maxchar; ++g) { if (g && g->bitmap2.bits) { free(g->bitmap2.bits); g->bitmap2.bits = NULL; } #ifdef GREY if (g && g->pixmap2) { XDestroyImage(g->image2); g->pixmap2 = NULL; if (g->pixmap2_t != NULL) { free(g->pixmap2_t); g->pixmap2_t = NULL; } } #endif } /* inner for */ } } } /* * realloc_font allocates the font structure to contain (newsize + 1) * characters. */ void realloc_font(fontp, newsize) struct font *fontp; wide_ubyte newsize; { struct glyph *glyph; glyph = fontp->glyph = xrealloc(fontp->glyph, (unsigned int) (newsize + 1) * sizeof(struct glyph)); if (newsize > fontp->maxchar) bzero((char *) (glyph + fontp->maxchar + 1), (int) (newsize - fontp->maxchar) * sizeof(struct glyph)); maxchar = fontp->maxchar = newsize; } /* * realloc_virtual_font does the same thing for virtual fonts. */ void realloc_virtual_font(fontp, newsize) struct font *fontp; wide_ubyte newsize; { struct macro *macro; macro = fontp->macro = xrealloc(fontp->macro, (unsigned int) (newsize + 1) * sizeof(struct macro)); if (newsize > fontp->maxchar) bzero((char *) (macro + fontp->maxchar + 1), (int) (newsize - fontp->maxchar) * sizeof(struct macro)); maxchar = fontp->maxchar = newsize; } /* * load_font locates the t1 font or raster file and reads the index of * characters, plus whatever other preprocessing is done (depending on * the format). Return True on error, False on success. */ Boolean load_font(fontp) struct font *fontp; { double fsize = fontp->fsize; int dpi = fsize + 0.5; char *font_found; int size_found; int magic; Boolean hushcs = hush_chk; fontp->flags |= FONT_LOADED; fontp->file = font_open(fontp->fontname, &font_found, fsize, &size_found, fontp->magstepval, &fontp->filename #if T1 , &fontp->t1id #endif ); #if TTF if (fontp->ttfid>=0) { /* It's a TrueType font */ fontp->fsize=fsize; /* It comes in all sizes */ fontp->timestamp = ++current_timestamp; fontp->maxchar = maxchar = 255; fontp->set_char_p = set_ttf_char; /* read_TTF_char is a dummy */ fontp->read_char = read_TTF_char; fontp->glyph = NULL; return False; } #endif #if T1 if (fontp->t1id>=0) { /* It's a type1 font */ fontp->fsize=fsize; /* It comes in all sizes */ fontp->timestamp = ++current_timestamp; fontp->maxchar = maxchar = 255; fontp->set_char_p = set_t1_char; /* read_T1_char is a dummy */ fontp->read_char = read_T1_char; fontp->glyph = NULL; return False; } #endif if (fontp->file == NULL) { Fprintf(stderr, "%s: Can't find font %s.%dpk\n", prog, fontp->fontname, dpi); /* Err, can we just return here? Mustn't we load cmr10 in the fonts place? Looks like type1 version of replacement is never loaded. */ return True; } --n_files_left; if (font_found != NULL) { Fprintf(stderr, "%s: can't find font %s; using %s instead at %d dpi.\n", prog, fontp->fontname, font_found, dpi); free(fontp->fontname); fontp->fontname = strdup(font_found); hushcs = True; } else if (!kpse_bitmap_tolerance ((double) size_found, fsize)) Fprintf(stderr, "%s: Can't find font %s at %d dpi; using %d dpi instead.\n", prog, fontp->fontname, dpi, size_found); fontp->fsize = size_found; fontp->timestamp = ++current_timestamp; fontp->maxchar = maxchar = 255; fontp->set_char_p = set_char; magic = two(fontp->file); if (magic == PK_MAGIC) read_PK_index(fontp, WIDENINT hushcs); else #if USE_GF if (magic == GF_MAGIC) read_GF_index(fontp, WIDENINT hushcs); else #endif #ifdef Omega if (magic == VF_MAGIC) maxchar = read_VF_index(fontp, WIDENINT hushcs); #else if (magic == VF_MAGIC) read_VF_index(fontp, WIDENINT hushcs); #endif else oops("Cannot recognize format for font file %s", fontp->filename); if (fontp->flags & FONT_VIRTUAL) { #ifdef Omega #else while (maxchar > 0 && fontp->macro[maxchar].pos == NULL) --maxchar; if (maxchar < 255) realloc_virtual_font(fontp, WIDENINT maxchar); #endif } else { while (maxchar > 0 && fontp->glyph[maxchar].addr == 0) --maxchar; if (maxchar < 255) realloc_font(fontp, WIDENINT maxchar); } return False; } /* * MAGSTEPVALUE - If the given magnification is close to a \magstep * or a \magstephalf, then return twice the number of \magsteps. * Otherwise return NOMAGSTP. */ #define NOMAGSTP (-29999) #define NOBUILD 29999 static int magstepvalue(mag) float *mag; { int m_ret; unsigned dpi_ret = kpse_magstep_fix ((unsigned) *mag, (unsigned) pixels_per_inch, &m_ret); *mag = (float) dpi_ret; /* MAG is actually a dpi. */ return m_ret ? m_ret : NOMAGSTP; } /* * reuse_font recursively sets the flags for font structures being reused. */ static void reuse_font(fontp) struct font *fontp; { struct font **fp; struct tn *tnp; if (fontp->flags & FONT_IN_USE) return; fontp->flags |= FONT_IN_USE; if (list_fonts) Printf("%s: (reusing) %s at %d dpi\n", prog, fontp->fontname, (int) (fontp->fsize + 0.5)); if (fontp->flags & FONT_VIRTUAL) { for (fp = fontp->vf_table; fp < fontp->vf_table + VFTABLELEN; ++fp) if (*fp != NULL) reuse_font(*fp); for (tnp = fontp->vf_chain; tnp != NULL; tnp = tnp->next) reuse_font(tnp->fontp); } } /* * define_font reads the rest of the fntdef command and then reads in * the specified pixel file, adding it to the global linked-list holding * all of the fonts used in the job. */ struct font * define_font(file, cmnd, vfparent, tntable, tn_table_len, tn_headpp) FILE *file; wide_ubyte cmnd; struct font *vfparent; /* vf parent of this font, or NULL */ struct font **tntable; /* table for low TeXnumbers */ unsigned int tn_table_len; /* length of table for TeXnumbers */ struct tn **tn_headpp; /* addr of head of list of TeXnumbers */ { int TeXnumber; struct font *fontp; float fsize; /* BEGIN CHUNK dvi-init.c 1 */ #ifdef SRC_SPECIALS float helpconv; long conv_help; #endif /* END CHUNK dvi-init.c 1 */ double scale_dimconv; long checksum; int scale; int design; int magstepval; int len; char *fontname; int size; TeXnumber = num(file, (int) cmnd - FNTDEF1 + 1); checksum = four(file); scale = four(file); design = four(file); len = one(file); len += one(file); /* sequence point in the middle */ fontname = xmalloc((unsigned) len + 1); Fread(fontname, sizeof(char), len, file); fontname[len] = '\0'; /* BEGIN CHUNK dvi-init.c 2 */ #ifdef SRC_SPECIALS /* helpconv will contain the pt size (in floats) * * helpconv = (float)design * ((float)scale/(float)design) / (float)(2**16); * * simplified: */ helpconv = (float)scale / 65536.0; #endif /* END CHUNK dvi-init.c 2 */ if(debug & DBG_PK) Printf("%s: Define font \"%s\" scale=%d design=%d\n", prog, fontname, scale, design); if (vfparent == NULL) { fsize = 0.001 * scale / design * magnification * pixels_per_inch; scale_dimconv = dimconv; } else { /* The scaled size is given in units of vfparent->scale * * 2 ** -20 SPELL units, so we convert it into SPELL * units by multiplying by * vfparent->dimconv. * The design size is given in units of 2 ** -20 pt, so we convert * into SPELL units by multiplying by * (pixels_per_inch * 2**16) / (72.27 * 2**20). */ fsize = (72.27 * (1<<4)) * vfparent->dimconv * scale / design; scale_dimconv = vfparent->dimconv; #if 0 /* FP: seems to be wrong ! */ scale = vfparent->scale; #endif } magstepval = magstepvalue(&fsize); size = fsize + 0.5; /* BEGIN CHUNK dvi-init.c 3 */ #ifdef SRC_SPECIALS conv_help = (float)dimconv * (float)(1<<19) / 655360.0; if (debug & DBG_SRC_SPECIALS) { Fprintf(stderr, "Define font has vals: %f, %d, %lf, %lf, [%f]\n", fsize, magstepval, dimconv, scale_dimconv, conv_help); } #endif /* END CHUNK dvi-init.c 3 */ /* * reuse font if possible */ for (fontp = font_head;; fontp = fontp->next) { if (fontp == NULL) { /* if font doesn't exist yet */ if (list_fonts) Printf("%s: %s at %d dpi\n", prog, fontname, (int) (fsize + 0.5)); fontp = xmalloc((unsigned) sizeof(struct font)); fontp->fontname = fontname; fontp->fsize = fsize; /* BEGIN CHUNK dvi-init.c 4 */ #ifdef SRC_SPECIALS fontp->pt_size = helpconv; #endif /* END CHUNK dvi-init.c 4 */ fontp->magstepval = magstepval; fontp->file = NULL; /* needed if it's a virtual font */ fontp->checksum = checksum; fontp->flags = FONT_IN_USE; fontp->dimconv = scale * scale_dimconv / (1<<20); fontp->set_char_p = load_n_set_char; fontp->scale=scale; /* With virtual fonts, we might be opening another font (pncb.vf), instead of what we just allocated for (rpncb), thus leaving garbage in the structure for when close_a_file comes along looking for something. */ fontp->file = NULL; fontp->filename = NULL; if (vfparent == NULL) font_not_found |= load_font(fontp); fontp->next = font_head; font_head = fontp; break; } if (strcmp(fontname, fontp->fontname) == 0 && size == (int) (fontp->fsize + 0.5)) { /* if font already in use */ reuse_font(fontp); free(fontname); break; } } if (TeXnumber < tn_table_len) tntable[TeXnumber] = fontp; else { struct tn *tnp; tnp = xmalloc((unsigned) sizeof(struct tn)); tnp->next = *tn_headpp; *tn_headpp = tnp; tnp->TeXnumber = TeXnumber; tnp->fontp = fontp; } return fontp; } /* * process_preamble reads the information in the preamble and stores * it into global variables for later use. */ static void process_preamble() { ubyte k; if (one(dvi_file) != PRE) dvi_oops("Not a DVI file."); if (one(dvi_file) != 2) dvi_oops("Wrong version of DVI output for this program"); numerator = four(dvi_file); denominator = four(dvi_file); magnification = four(dvi_file); dimconv = (((double) numerator * magnification) / ((double) denominator * 1000.)); dimconv = dimconv * (((long) pixels_per_inch)<<16) / 254000; tpic_conv = pixels_per_inch * magnification / 1000000.0; k = one(dvi_file); Fread(job_id, sizeof(char), (int) k, dvi_file); job_id[k] = '\0'; } /* * find_postamble locates the beginning of the postamble * and leaves the file ready to start reading at that location. */ #define TMPSIZ 516 /* 4 trailer bytes + 512 junk bytes allowed */ static void find_postamble() { long pos; ubyte temp[TMPSIZ]; ubyte *p; ubyte *p1; ubyte byte; Fseek(dvi_file, (long) 0, 2); pos = ftell(dvi_file) - TMPSIZ; if (pos < 0) pos = 0; Fseek(dvi_file, pos, 0); p = temp + fread((char *) temp, sizeof(char), TMPSIZ, dvi_file); for (;;) { p1 = p; while (p1 > temp && *(--p1) != TRAILER) ; p = p1; while (p > temp && *(--p) == TRAILER) ; if (p <= p1 - 4) break; /* found 4 TRAILER bytes */ if (p <= temp) dvi_oops("DVI file corrupted"); } pos += p - temp; byte = *p; while (byte == TRAILER) { Fseek(dvi_file, --pos, 0); byte = one(dvi_file); } if (byte != 2) dvi_oops("Wrong version of DVI output for this program"); Fseek(dvi_file, pos - 4, 0); Fseek(dvi_file, sfour(dvi_file), 0); } /* * read_postamble reads the information in the postamble, * storing it into global variables. * It also takes care of reading in all of the pixel files for the fonts * used in the job. */ static void read_postamble() { ubyte cmnd; struct font *fontp; struct font **fontpp; if (one(dvi_file) != POST) dvi_oops("Postamble doesn't begin with POST"); last_page_offset = four(dvi_file); if (numerator != four(dvi_file) || denominator != four(dvi_file) || magnification != four(dvi_file)) dvi_oops("Postamble doesn't match preamble"); /* read largest box height and width */ unshrunk_dvifile_page_h = unshrunk_page_h = (spell_conv(sfour(dvi_file)) >> 16) + offset_y; if (unshrunk_page_h < unshrunk_paper_h) unshrunk_page_h = unshrunk_paper_h; unshrunk_dvifile_page_w = unshrunk_page_w = (spell_conv(sfour(dvi_file)) >> 16) + offset_x; if (unshrunk_page_w < unshrunk_paper_w) unshrunk_page_w = unshrunk_paper_w; (void) two(dvi_file); /* max stack size */ total_pages = two(dvi_file); font_not_found = False; while ((cmnd = one(dvi_file)) >= FNTDEF1 && cmnd <= FNTDEF4) (void) define_font(dvi_file, cmnd, (struct font *) NULL, tn_table, TNTABLELEN, &tn_head); if (cmnd != POSTPOST) dvi_oops("Non-fntdef command found in postamble"); if (font_not_found) dvi_oops("Not all pixel files were found"); /* * free up fonts no longer in use */ fontpp = &font_head; while ((fontp = *fontpp) != NULL) if (fontp->flags & FONT_IN_USE) fontpp = &fontp->next; else { if (debug & DBG_PK) Printf("%s: Discarding font \"%s\" at %d dpi\n", prog, fontp->fontname, (int) (fontp->fsize + 0.5)); *fontpp = fontp->next; /* remove from list */ free(fontp->fontname); if (fontp->flags & FONT_LOADED) { if (fontp->file != NULL) { Fclose(fontp->file); ++n_files_left; } free(fontp->filename); if (fontp->flags & FONT_VIRTUAL) { struct macro *m; for (m = fontp->macro; m <= fontp->macro + fontp->maxchar; ++m) if (m->free_me) free((char *) m->pos); free((char *) fontp->macro); free((char *) fontp->vf_table); free_vf_chain(fontp->vf_chain); } else if (fontp->glyph != NULL) { /* skip empty fonts (tjc) */ struct glyph *g; for (g = fontp->glyph; g <= fontp->glyph + fontp->maxchar; ++g) { if (g == NULL) continue; if (g->bitmap.bits != NULL) { free(g->bitmap.bits); g->bitmap.bits = NULL; } if (g->bitmap2.bits != NULL) { free(g->bitmap2.bits); g->bitmap2.bits = NULL; } #ifdef GREY if (g->pixmap2 != NULL) { XDestroyImage(g->image2); g->pixmap2 = NULL; if (g->pixmap2_t != NULL) { free(g->pixmap2_t); g->pixmap2_t = NULL; } } #endif } free((char *) fontp->glyph); } free((char *) fontp); } } } static void prepare_pages() { int i; page_offset = xmalloc((unsigned) total_pages * sizeof(long)); i = total_pages; page_offset[--i] = last_page_offset; Fseek(dvi_file, last_page_offset, 0); /* * Follow back pointers through pages in the DVI file, * storing the offsets in the page_offset table. */ while (i > 0) { Fseek(dvi_file, (long) (1+4+(9*4)), 1); Fseek(dvi_file, page_offset[--i] = four(dvi_file), 0); } } void init_page() { page_w = ROUNDUP(unshrunk_page_w, mane.shrinkfactor) + 2; page_h = ROUNDUP(unshrunk_page_h, mane.shrinkfactor) + 2; } #ifndef S_ISDIR #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) #endif /* * init_dvi_file is the main subroutine for reading the startup * information from the dvi file. Returns True on success. */ Boolean init_dvi_file() { #ifdef WIN32 char szBuf[80]; extern void UpdateStatusBar(LPSTR lpszStatusString, WORD partNumber, WORD displayFlags); wsprintf(szBuf, "Initializing %s", xbasename(dvi_name)); UpdateStatusBar(szBuf, 0, 0); #endif (void) fstat(fileno(dvi_file), &fstatbuf); if (S_ISDIR(fstatbuf.st_mode)) return False; dvi_time = fstatbuf.st_mtime; process_preamble(); find_postamble(); read_postamble(); prepare_pages(); init_page(); if (current_page >= total_pages) current_page = total_pages - 1; warn_spec_now = warn_spec; #if PS ps_newdoc(); #endif #ifdef SRC_SPECIALS src_delete_all_specials(); #endif #ifdef HTEX htex_reinit(); #endif /* HTEX */ #ifdef WIN32 wsprintf(szBuf, "Ready"); UpdateStatusBar(szBuf, 0, 0); #endif return True; } #ifdef WIN32 /* add the current file to the list of last used files. */ #define MAX_USED_FILES 4 void push_current_used() { extern void UpdateMainMenuUsedFiles(void); extern char **lpLastUsedFiles; extern int iLastUsedFilesNum; int i; char path[260], *fp; if (!dvi_name) { fprintf(stderr, "push_current_used : error, no valid dvi_name\n"); return; } /* Get the full file name */ #if 1 /* Beware : might have added file: FIXME: there should be a copy of original dvi_name rather that parsing it back ! In fact, dvi_name must be made absolute first. */ if (memicmp(dvi_name, "file:", 5) == 0) { if (GetFullPathName(dvi_name+5, sizeof(path), path, &fp) == 0) Win32Error("push_current_used/GetFullPathName"); } else #endif if (GetFullPathName(dvi_name, sizeof(path), path, &fp) == 0) Win32Error("push_current_used/GetFullPathName"); if (iLastUsedFilesNum < MAX_USED_FILES) { for (i = iLastUsedFilesNum; i >= 1; i--) lpLastUsedFiles[i] = lpLastUsedFiles[i - 1]; lpLastUsedFiles[0] = xstrdup(path); iLastUsedFilesNum++; } else { /* Cancellation or something like that */ if (FILESTRCASEEQ(path, lpLastUsedFiles[0])) return; free(lpLastUsedFiles[iLastUsedFilesNum - 1]); for (i = iLastUsedFilesNum - 1; i >= 1; i--) lpLastUsedFiles[i] = lpLastUsedFiles[i-1]; lpLastUsedFiles[0] = xstrdup(path); UpdateMainMenuUsedFiles(); } } void set_directory_dvifile() { char path[260], *fp; /* Get the full file name */ if (GetFullPathName(dvi_name, sizeof(path), path, &fp) == 0) Win32Error("set_directory_dvifile/GetFullPathName"); NormalizeDviName(sizeof(path), path); if (fp == path) { fprintf(stderr, "Error : no valid path %s -> %s\n", dvi_name, path); } *(fp-1) = '\0'; dvi_name = strdup(fp); if (SetCurrentDirectory(path) == 0) Win32Error("set_directory_dvifile/SetCurrentDirectory"); } #endif /* WIN32 */ /** ** open_dvi_file opens the dvi file and calls init_dvi_file() to ** initialize it. **/ void open_dvi_file() { int n; char *file; if (setjmp(dvi_env)) oops(dvi_oops_msg); n = strlen(dvi_name); file = dvi_name; #ifdef WIN32 dvipos = 0L; dvistate = CLEARED; #endif if (!this_is_a_href) { /* * Try foo.dvi before foo, in case there's an executable foo with * documentation foo.tex. Unless it already ends with ".dvi". */ if (n < sizeof(".dvi") || strcmp(dvi_name + n - sizeof(".dvi") + 1, ".dvi") != 0) { dvi_name = xmalloc((unsigned) n + sizeof(".dvi")); Strcpy(dvi_name, file); Strcat(dvi_name, ".dvi"); dvi_file = xfopen(dvi_name, OPEN_MODE); if (dvi_file != NULL && init_dvi_file()) { #ifdef WIN32 /* New recent used file */ push_current_used(); initcolor(); #endif return; } free(dvi_name); dvi_name = file; } } /* Then try `foo', in case the user likes DVI files without `.dvi'. */ if ((dvi_file = xfopen(dvi_name, OPEN_MODE)) == NULL || !init_dvi_file()) { #ifdef WIN32 /* May be this can be handled more gracefully ? */ extern HWND hWndMain; char buf[200]; #if PS ps_destroy(); #endif wsprintf(buf, "File not found : %s", xbasename(dvi_name)); MessageBox(hWndMain, buf, NULL, MB_OK | MB_ICONERROR | MB_APPLMODAL); Exit(1); #else /* ! WIN32 */ perror(dvi_name); #if PS ps_destroy(); #endif exit(1); #endif /* ! WIN32 */ } #ifdef WIN32 /* New recent used file */ scanned_page = scanned_page_reset = -1; #ifdef XFORM reset_xform_stack(); #endif #ifdef SRC_SPECIALS src_delete_all_specials(); #endif #ifdef HTEX htex_reinit(); #endif push_current_used(); initcolor(); #endif } #ifdef SELFILE /* Allow the user to choose a new dvi file, by popping up a dialog box which allows the graphical selection of the correct filename, maybe we should only allow files ending in .dvi to be selected. */ FILE * select_filename(open, move_home) int open, move_home ; { extern FILE *XsraSelFile(); FILE *dummy_file ; static char *dummy_name ; dummy_file = XsraSelFile(top_level, "Select a dvi file: ", "Ok", "Cancel", "Can't open file: ", NULL, OPEN_MODE, NULL, &dummy_name) ; if (dummy_file != NULL) { /* we may not want the file they returned... */ if (!open) fclose (dummy_file) ; /* The name is what we really want, so use it, but turn it into an URL */ free(dvi_name); #if 0 dummy_name = HTEscape(dummy_name,URL_PATH); dvi_name = xmalloc((unsigned) strlen(dummy_name)+6); strcat(strcpy(dvi_name,"file:"),dummy_name); #else dvi_name = xstrdup(dummy_name); #endif /* Should we really free dummy_name? */ current_page = 0 ; /* go to start of new dvi file */ if (move_home) home(False); /* Move to home position on new first page */ /* We do this elsewhere if we don't open the file. */ if (open) set_icon_and_title (dvi_name, NULL, NULL, 1); } else if (open && dvi_name) { /* User cancelled, so open old file */ dummy_file = xfopen(dvi_name, OPEN_MODE); if (dummy_file == NULL) dvi_oops("Could not open old file"); --dvi_time; } return dummy_file ; } #endif /* SELFILE */ /** ** Check for changes in dvi file. **/ Boolean check_dvi_file() { struct font *fontp; #if 0 fprintf(stderr, "dvi_file = %x, stat = %d, dvi_time = %x, fstat.mtime = %x\n", dvi_file, fstat(fileno(dvi_file), &fstatbuf), dvi_time, fstatbuf.st_mtime); #endif if (dvi_name == NULL) return False; if (dvi_file == NULL || fstat(fileno(dvi_file), &fstatbuf) != 0 || fstatbuf.st_mtime != dvi_time) { if (dvi_file) { Fclose(dvi_file); dvi_file = NULL; if (list_fonts) Putchar('\n'); } if (page_offset != (long *) NULL) { free((char *) page_offset); page_offset = (long *) NULL; } bzero((char *) tn_table, (int) sizeof(tn_table)); free_vf_chain(tn_head); tn_head = NULL; for (fontp = font_head; fontp != NULL; fontp = fontp->next) fontp->flags &= ~FONT_IN_USE; #ifdef SELFILE if ((dvi_time > fstatbuf.st_mtime) && /* choose a new file */ (dvi_file = select_filename(True, True)) == NULL) dvi_oops("Cannot open new dvi file."); else #endif /* SELFILE */ if ((dvi_file = xfopen(dvi_name, OPEN_MODE)) == NULL) dvi_oops("Cannot reopen dvi file."); /* This function should be applied in both cases, for a * new opened or a reread dvi file or we will get empty * page_offset and fonts. */ if (!init_dvi_file()) dvi_oops("Cannot initialise dvi file."); scanned_page = scanned_page_reset = -1; initcolor(); reconfig(); /* BEGIN CHUNK dvi-init.c 5 */ #ifdef SRC_SPECIALS src_delete_all_specials(); #endif /* END CHUNK dvi-init.c 5 */ #ifdef HTEX htex_reinit(); #endif /* HTEX */ redraw_page(); return False; } return True; } #ifdef WIN32 void CloseCurrentFile() { struct font *fontp; if (dvi_file) { Fclose(dvi_file); dvi_file = NULL; if (list_fonts) Putchar('\n'); } if (page_offset) { /* With SELFILE, we are called once before the file selection, and then once recursively (below). Thus we would free a freed pointer. */ free((char *) page_offset); page_offset = NULL; bzero((char *) tn_table, (int) sizeof(tn_table)); free_vf_chain(tn_head); tn_head = NULL; for (fontp = font_head; fontp != NULL; fontp = fontp->next) fontp->flags &= ~FONT_IN_USE; } } void OpenCurrentFile(char *name) { extern void ChangePage(int); extern void ChangeZoom(int); extern void initcolor(); dvi_name = xstrdup(name); dvi_file = fopen(name, OPEN_MODE); set_icon_and_title (dvi_name, NULL, NULL, 1); if (dvi_file == NULL || !init_dvi_file()) dvi_oops("Cannot reopen dvi file."); initcolor(); reconfig(); #ifdef SRC_SPECIALS src_delete_all_specials(); #endif #ifdef HTEX htex_reinit(); #endif /* HTEX */ ChangePage(0); ChangeZoom(0); redraw_page(); } void NormalizeDviName(int size, char * name) { int len = strlen(name); if (_stricmp(name + len - 4, ".dvi") && (len+4 < size)) { strcat(name, ".dvi"); } } #endif