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frodo |
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/* |
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parse_page.c - Part of psiconv, a PSION 5 file formats converter |
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frodo |
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Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl> |
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frodo |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include "config.h" |
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frodo |
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#include "compat.h" |
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frodo |
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#include <stdlib.h> |
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#include <string.h> |
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#include "parse_routines.h" |
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frodo |
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#include "error.h" |
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frodo |
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|
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frodo |
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#ifdef DMALLOC |
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#include <dmalloc.h> |
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#endif |
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frodo |
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int psiconv_parse_page_header(const psiconv_buffer buf,int lev,psiconv_u32 off, |
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int *length,psiconv_page_header *result) |
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{ |
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int res = 0; |
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int len = 0; |
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frodo |
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int i,leng,has_content; |
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frodo |
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psiconv_u32 temp; |
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|
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psiconv_progress(lev+1,off,"Going to read a page header (or footer)"); |
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frodo |
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if (!(*result = malloc(sizeof(**result)))) |
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goto ERROR1; |
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frodo |
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|
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psiconv_progress(lev+2,off+len, |
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frodo |
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"Going to read the has_content flag"); |
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frodo |
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temp = psiconv_read_u8(buf,lev+2,off+len,&res); |
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frodo |
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if (res) |
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frodo |
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goto ERROR2; |
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frodo |
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if (temp == 0x00) |
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has_content = 0; |
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else if (temp == 0x01) |
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has_content = 1; |
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else { |
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psiconv_warn(lev+2,off+len, |
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"Page header has_content flag unknown value (assumed default)"); |
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psiconv_debug(lev+2,off+len,"Flag: %02x",temp); |
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has_content = 1; |
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frodo |
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} |
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frodo |
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psiconv_debug(lev+2,off+len,"Has_content flag: %02x",has_content); |
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frodo |
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len += 1; |
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psiconv_progress(lev+2,off+len,"Going to read displayed-on-first-page flag"); |
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frodo |
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if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng, |
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&(*result)->on_first_page))) |
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goto ERROR2; |
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frodo |
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len += leng; |
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psiconv_progress(lev+2,off+len,"Going to read three zero bytes"); |
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for (i = 0; i < 0x03; i++,len++) { |
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frodo |
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temp = psiconv_read_u8(buf,lev+2,off+len,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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if (temp != 0x00) { |
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psiconv_warn(lev+2,off+len, |
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"Page Header unknown value in zero bytes section"); |
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psiconv_debug(lev+2,off+len,"Byte %d: read %02x, expected %02x", |
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i,temp,0x00); |
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} |
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} |
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psiconv_progress(lev+2,off+len,"Going to read base paragraph layout"); |
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frodo |
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if (!((*result)->base_paragraph_layout = psiconv_basic_paragraph_layout())) |
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goto ERROR2; |
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frodo |
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|
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frodo |
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if (has_content) { |
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if ((res = psiconv_parse_paragraph_layout_list(buf,lev+2,off+len,&leng, |
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(*result)->base_paragraph_layout))) |
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goto ERROR3; |
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len += leng; |
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} |
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frodo |
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psiconv_progress(lev+2,off+len,"Going to read base character layout"); |
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frodo |
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if (!((*result)->base_character_layout = psiconv_basic_character_layout())) |
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goto ERROR3; |
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frodo |
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if (has_content) { |
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if ((res = psiconv_parse_character_layout_list(buf,lev+2,off+len,&leng, |
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(*result)->base_character_layout))) |
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goto ERROR4; |
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} |
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frodo |
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len += leng; |
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psiconv_progress(lev+2,off+len,"Going to read the TextEd section"); |
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frodo |
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if (has_content) { |
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if ((res = psiconv_parse_texted_section(buf,lev+2,off+len,&leng, |
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&(*result)->text, |
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(*result)->base_character_layout, |
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(*result)->base_paragraph_layout))) |
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goto ERROR4; |
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len += leng; |
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frodo |
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} else { |
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(*result)->text = NULL; |
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frodo |
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} |
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frodo |
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|
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if (length) |
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*length = len; |
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psiconv_progress(lev+1,off+len-1,"End of page header" |
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"(total length: %08x", len); |
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return res; |
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frodo |
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ERROR4: |
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psiconv_free_character_layout((*result)->base_character_layout); |
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ERROR3: |
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psiconv_free_paragraph_layout((*result)->base_paragraph_layout); |
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ERROR2: |
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free (*result); |
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ERROR1: |
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psiconv_warn(lev+1,off,"Reading of Page Header failed"); |
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if (length) |
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*length = 0; |
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if (!res) |
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return -PSICONV_E_NOMEM; |
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else |
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return res; |
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frodo |
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} |
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int psiconv_parse_page_layout_section(const psiconv_buffer buf,int lev, |
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psiconv_u32 off, int *length, |
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psiconv_page_layout_section *result) |
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{ |
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int res = 0; |
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int len = 0; |
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int leng; |
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psiconv_u32 temp; |
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psiconv_progress(lev+1,off,"Going to read the page layout section"); |
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frodo |
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if (!(*result = malloc(sizeof(**result)))) |
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goto ERROR1; |
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frodo |
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|
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psiconv_progress(lev+2,off+len,"Going to read first page number"); |
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frodo |
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(*result)->first_page_nr = psiconv_read_u32(buf,lev+2,off+len,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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psiconv_debug(lev+2,off+len,"First page: %d",(*result)->first_page_nr); |
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len += 4; |
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psiconv_progress(lev+2,off+len,"Going to read header distance"); |
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frodo |
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(*result)->header_dist = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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psiconv_debug(lev+2,off+len,"Header distance: %6.3f",(*result)->header_dist); |
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len += leng; |
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psiconv_progress(lev+2,off+len,"Going to read footer distance"); |
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frodo |
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(*result)->footer_dist = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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psiconv_debug(lev+2,off+len,"Footer distance: %6.3f",(*result)->footer_dist); |
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len += leng; |
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psiconv_progress(lev+2,off+len,"Going to read the left margin"); |
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frodo |
64 |
(*result)->left_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
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psiconv_debug(lev+2,off+len,"Left margin: %6.3f",(*result)->left_margin); |
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len += leng; |
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psiconv_progress(lev+2,off+len,"Going read the to right margin"); |
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frodo |
64 |
(*result)->right_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
2 |
psiconv_debug(lev+2,off+len,"Right margin: %6.3f",(*result)->right_margin); |
187 |
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len += leng; |
188 |
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189 |
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psiconv_progress(lev+2,off+len,"Going to read the top margin"); |
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frodo |
64 |
(*result)->top_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
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if (res) |
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goto ERROR2; |
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frodo |
2 |
psiconv_debug(lev+2,off+len,"Top margin: %6.3f",(*result)->top_margin); |
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len += leng; |
195 |
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196 |
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psiconv_progress(lev+2,off+len,"Going to read the bottom margin"); |
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frodo |
64 |
(*result)->bottom_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
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if (res) |
199 |
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goto ERROR2; |
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frodo |
2 |
psiconv_debug(lev+2,off+len,"Bottom margin: %6.3f",(*result)->bottom_margin); |
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len += leng; |
202 |
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203 |
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psiconv_progress(lev+2,off+len,"Going to read the header"); |
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frodo |
64 |
if ((res = psiconv_parse_page_header(buf,lev+2,off+len,&leng, |
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&(*result)->header))) |
206 |
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goto ERROR2; |
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frodo |
2 |
len += leng; |
208 |
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209 |
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psiconv_progress(lev+2,off+len,"Going to read the footer"); |
210 |
frodo |
64 |
if ((res = psiconv_parse_page_header(buf,lev+2,off+len,&leng, |
211 |
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&(*result)->footer))) |
212 |
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goto ERROR3; |
213 |
frodo |
2 |
len += leng; |
214 |
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215 |
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psiconv_progress(lev+2,off+len,"Going to read page dimensions id"); |
216 |
frodo |
64 |
temp = psiconv_read_u32(buf,lev+2,off+len,&res); |
217 |
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if (res) |
218 |
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goto ERROR4; |
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frodo |
76 |
if ((temp != PSICONV_ID_PAGE_DIMENSIONS1) && |
220 |
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(temp != PSICONV_ID_PAGE_DIMENSIONS2)) { |
221 |
frodo |
2 |
psiconv_warn(lev+2,off+len, |
222 |
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"Page layout section page dimensions marker not found"); |
223 |
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psiconv_debug(lev+2,off+len, |
224 |
frodo |
76 |
"Page dimensions marker: read %08x, expected %08x or %08x", |
225 |
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temp, PSICONV_ID_PAGE_DIMENSIONS1, |
226 |
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PSICONV_ID_PAGE_DIMENSIONS2); |
227 |
frodo |
2 |
} |
228 |
frodo |
65 |
len += 4; |
229 |
frodo |
2 |
|
230 |
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psiconv_progress(lev+2,off+len,"Going to read the page width"); |
231 |
frodo |
64 |
(*result)->page_width = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
232 |
frodo |
65 |
if (res) |
233 |
frodo |
64 |
goto ERROR4; |
234 |
frodo |
2 |
psiconv_debug(lev+2,off+len,"Page width: %6.3f",(*result)->page_width); |
235 |
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len += leng; |
236 |
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237 |
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psiconv_progress(lev+2,off+len,"Going to read the page height"); |
238 |
frodo |
64 |
(*result)->page_height = psiconv_read_length(buf,lev+2,off+len,&leng,&res); |
239 |
frodo |
65 |
if (res) |
240 |
frodo |
64 |
goto ERROR4; |
241 |
frodo |
2 |
psiconv_debug(lev+2,off+len,"Page height: %6.3f",(*result)->page_height); |
242 |
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len += leng; |
243 |
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244 |
frodo |
76 |
psiconv_progress(lev+2,off+len,"Going to read page portrait/landscape"); |
245 |
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if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,&(*result)->landscape))) |
246 |
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goto ERROR4; |
247 |
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psiconv_debug(lev+2,off+len,"Landscape: %d",(*result)->landscape); |
248 |
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len += leng; |
249 |
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250 |
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251 |
frodo |
2 |
if (length) |
252 |
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*length = len; |
253 |
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254 |
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psiconv_progress(lev,off+len-1,"End of page section (total length: %08x)", |
255 |
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len); |
256 |
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257 |
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return res; |
258 |
frodo |
64 |
|
259 |
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ERROR4: |
260 |
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psiconv_free_page_header((*result)->footer); |
261 |
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ERROR3: |
262 |
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psiconv_free_page_header((*result)->header); |
263 |
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ERROR2: |
264 |
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free (*result); |
265 |
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ERROR1: |
266 |
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psiconv_warn(lev+1,off,"Reading of Page Section failed"); |
267 |
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if (length) |
268 |
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*length = 0; |
269 |
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if (!res) |
270 |
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return -PSICONV_E_NOMEM; |
271 |
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else |
272 |
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return res; |
273 |
frodo |
2 |
} |