libwpd_internal.h

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00001 /* libwpd
00002  * Copyright (C) 2002 William Lachance (william.lachance@sympatico.ca)
00003  * Copyright (C) 2002,2004 Marc Maurer (uwog@uwog.net)
00004  *  
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public
00016  * License along with this library; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
00018  *
00019  * For further information visit http://libwpd.sourceforge.net
00020  */
00021 
00022 /* "This product is not manufactured, approved, or supported by 
00023  * Corel Corporation or Corel Corporation Limited."
00024  */
00025 
00026 #ifndef LIBWPD_INTERNAL_H
00027 #define LIBWPD_INTERNAL_H
00028 #include "WPXStream.h"
00029 #include <stdio.h>
00030 #include <string>
00031 #include "WPXString.h"
00032 
00033 /* Various functions/defines that need not/should not be exported externally */
00034 
00035 #define WPD_CHECK_FILE_ERROR(v) if (v==EOF) { WPD_DEBUG_MSG(("X_CheckFileError: %d\n", __LINE__)); throw FileException(); }
00036 #define WPD_CHECK_FILE_SEEK_ERROR(v) if (v) { WPD_DEBUG_MSG(("X_CheckFileSeekError: %d\n", __LINE__)); throw FileException(); }
00037 #define WPD_CHECK_FILE_READ_ERROR(v,num_elements) if (v != num_elements) {\
00038  WPD_DEBUG_MSG(("X_CheckFileReadElementError: %d\n", __LINE__)); throw FileException(); }
00039 
00040 #define DELETEP(m) if (m) { delete m; m = NULL; }
00041  
00042 #ifdef DEBUG
00043 #define WPD_DEBUG_MSG(M) printf M
00044 #else
00045 #define WPD_DEBUG_MSG(M)
00046 #endif
00047 
00048 #define WPD_LE_GET_GUINT8(p) (*(uint8_t const *)(p))
00049 #define WPD_LE_GET_GUINT16(p)                             \
00050         (uint16_t)((((uint8_t const *)(p))[0] << 0)  |    \
00051                   (((uint8_t const *)(p))[1] << 8))
00052 #define WPD_LE_GET_GUINT32(p) \
00053         (uint32_t)((((uint8_t const *)(p))[0] << 0)  |    \
00054                   (((uint8_t const *)(p))[1] << 8)  |    \
00055                   (((uint8_t const *)(p))[2] << 16) |    \
00056                   (((uint8_t const *)(p))[3] << 24))
00057 
00058 #define WPD_BE_GET_GUINT8(p) (*(uint8_t const *)(p))
00059 #define WPD_BE_GET_GUINT16(p)                           \
00060         (uint16_t)((((uint8_t const *)(p))[1] << 0)  |    \
00061                   (((uint8_t const *)(p))[0] << 8))
00062 #define WPD_BE_GET_GUINT32(p)                           \
00063         (uint32_t)((((uint8_t const *)(p))[3] << 0)  |    \
00064                   (((uint8_t const *)(p))[2] << 8)  |    \
00065                   (((uint8_t const *)(p))[1] << 16) |    \
00066                   (((uint8_t const *)(p))[0] << 24))
00067 
00068 // add more of these as needed for byteswapping
00069 // (the 8-bit functions are just there to make things consistent)
00070 int8_t read8(WPXInputStream *input); 
00071 uint8_t readU8(WPXInputStream *input); 
00072 uint16_t readU16(WPXInputStream *input, bool bigendian=false);
00073 uint32_t readU32(WPXInputStream *input, bool bigendian=false);
00074 
00075 WPXString readPascalString(WPXInputStream *input);
00076 WPXString readCString(WPXInputStream *input);
00077 
00078 void appendUCS4(WPXString &str, uint32_t ucs4);
00079 
00080 // Various helper structures for the libwpd parser..
00081 
00082 int extendedCharacterWP6ToUCS2(uint8_t character, uint8_t characterSet,
00083                             const uint16_t **chars);
00084 
00085 int extendedCharacterWP5ToUCS2(uint8_t character, uint8_t characterSet,
00086                             const uint16_t **chars);
00087 
00088 uint16_t fixedPointToWPUs(const uint32_t fixedPointNumber);
00089 
00090 enum WPXFileType { WP6_DOCUMENT, WP5_DOCUMENT, WP42_DOCUMENT, OTHER };
00091 enum WPXNumberingType { ARABIC, LOWERCASE, UPPERCASE, LOWERCASE_ROMAN, UPPERCASE_ROMAN };
00092 enum WPXNoteType { FOOTNOTE, ENDNOTE };
00093 enum WPXHeaderFooterType { HEADER, FOOTER };
00094 enum WPXHeaderFooterInternalType { HEADER_A, HEADER_B, FOOTER_A, FOOTER_B, DUMMY };
00095 enum WPXHeaderFooterOccurence { ODD, EVEN, ALL, NEVER };
00096 enum WPXFormOrientation { PORTRAIT, LANDSCAPE };
00097 enum WPXTabAlignment { LEFT, RIGHT, CENTER, DECIMAL, BAR };
00098 enum WPXVerticalAlignment { TOP, MIDDLE, BOTTOM, FULL };
00099 
00100 enum WPXTextColumnType { NEWSPAPER, NEWSPAPER_VERTICAL_BALANCE, PARALLEL, PARALLEL_PROTECT };
00101 
00102 // ATTRIBUTE bits
00103 #define WPX_EXTRA_LARGE_BIT 1
00104 #define WPX_VERY_LARGE_BIT 2
00105 #define WPX_LARGE_BIT 4
00106 #define WPX_SMALL_PRINT_BIT 8
00107 #define WPX_FINE_PRINT_BIT 16
00108 #define WPX_SUPERSCRIPT_BIT 32
00109 #define WPX_SUBSCRIPT_BIT 64
00110 #define WPX_OUTLINE_BIT 128
00111 #define WPX_ITALICS_BIT 256
00112 #define WPX_SHADOW_BIT 512
00113 #define WPX_REDLINE_BIT 1024
00114 #define WPX_DOUBLE_UNDERLINE_BIT 2048
00115 #define WPX_BOLD_BIT 4096
00116 #define WPX_STRIKEOUT_BIT 8192
00117 #define WPX_UNDERLINE_BIT 16384
00118 #define WPX_SMALL_CAPS_BIT 32768
00119 #define WPX_BLINK_BIT 65536
00120 #define WPX_REVERSEVIDEO_BIT 131072
00121 
00122 // JUSTIFICATION bits.
00123 #define WPX_PARAGRAPH_JUSTIFICATION_LEFT 0x00
00124 #define WPX_PARAGRAPH_JUSTIFICATION_FULL 0x01
00125 #define WPX_PARAGRAPH_JUSTIFICATION_CENTER 0x02
00126 #define WPX_PARAGRAPH_JUSTIFICATION_RIGHT 0x03
00127 #define WPX_PARAGRAPH_JUSTIFICATION_FULL_ALL_LINES 0x04
00128 #define WPX_PARAGRAPH_JUSTIFICATION_DECIMAL_ALIGNED 0x05
00129 
00130 // TABLE POSITION bits.
00131 #define WPX_TABLE_POSITION_ALIGN_WITH_LEFT_MARGIN 0x00
00132 #define WPX_TABLE_POSITION_ALIGN_WITH_RIGHT_MARGIN 0x01
00133 #define WPX_TABLE_POSITION_CENTER_BETWEEN_MARGINS 0x02
00134 #define WPX_TABLE_POSITION_FULL 0x03
00135 #define WPX_TABLE_POSITION_ABSOLUTE_FROM_LEFT_MARGIN 0x04
00136 
00137 // TABLE CELL BORDER bits
00138 const uint8_t WPX_TABLE_CELL_LEFT_BORDER_OFF = 0x01;
00139 const uint8_t WPX_TABLE_CELL_RIGHT_BORDER_OFF = 0x02;
00140 const uint8_t WPX_TABLE_CELL_TOP_BORDER_OFF = 0x04;
00141 const uint8_t WPX_TABLE_CELL_BOTTOM_BORDER_OFF = 0x08;
00142 
00143 // BREAK bits
00144 #define WPX_PAGE_BREAK 0x00
00145 #define WPX_SOFT_PAGE_BREAK 0x01
00146 #define WPX_COLUMN_BREAK 0x02
00147 
00148 // Generic bits
00149 #define WPX_LEFT 0x00
00150 #define WPX_RIGHT 0x01
00151 #define WPX_CENTER 0x02
00152 #define WPX_TOP 0x03
00153 #define WPX_BOTTOM 0x04
00154 
00155 typedef struct _RGBSColor RGBSColor;
00156 struct _RGBSColor
00157 {
00158         _RGBSColor(uint8_t r, uint8_t g, uint8_t b, uint8_t s);
00159         _RGBSColor(uint16_t red, uint16_t green, uint16_t blue); // Construct
00160         // RBBSColor from double precision RGB color used by WP3.x for Mac
00161         _RGBSColor(); // initializes all values to 0
00162         uint8_t m_r;
00163         uint8_t m_g;
00164         uint8_t m_b;
00165         uint8_t m_s;
00166 };
00167 
00168 typedef struct _WPXColumnDefinition WPXColumnDefinition;
00169 struct _WPXColumnDefinition
00170 {
00171         _WPXColumnDefinition(); // initializes all values to 0
00172         float m_width;
00173         float m_leftGutter;
00174         float m_rightGutter;
00175 };
00176 
00177 typedef struct _WPXColumnProperties WPXColumnProperties;
00178 struct _WPXColumnProperties
00179 {
00180         _WPXColumnProperties();
00181         uint32_t m_attributes;
00182         uint8_t m_alignment;
00183 };
00184 
00185 typedef struct _WPXTabStop WPXTabStop;
00186 struct _WPXTabStop
00187 {
00188         _WPXTabStop(float position, WPXTabAlignment alignment, uint16_t leaderCharacter, uint8_t leaderNumSpaces);
00189         _WPXTabStop();
00190         float m_position;
00191         WPXTabAlignment m_alignment;
00192         uint16_t m_leaderCharacter;
00193         uint8_t m_leaderNumSpaces;
00194 };
00195 
00196 // Various exceptions: libwpd does not propagate exceptions externally..
00197 
00198 class VersionException
00199 {
00200         // needless to say, we could flesh this class out a bit
00201 };
00202 
00203 class FileException
00204 {
00205         // needless to say, we could flesh this class out a bit
00206 };
00207 
00208 class ParseException
00209 {
00210         // needless to say, we could flesh this class out a bit
00211 };
00212 
00213 class GenericException
00214 {
00215         // needless to say, we could flesh this class out a bit
00216 };
00217 
00218 class UnsupportedEncryptionException
00219 {
00220         // needless to say, we could flesh this class out a bit
00221 };
00222 
00223 // Various usefull, but cheesey functions
00224 
00225 int _extractNumericValueFromRoman(const char romanChar);
00226 int _extractDisplayReferenceNumberFromBuf(const WPXString &buf, const WPXNumberingType listType);
00227 WPXNumberingType _extractWPXNumberingTypeFromBuf(const WPXString &buf, const WPXNumberingType putativeWPXNumberingType);
00228 WPXString _numberingTypeToString(WPXNumberingType t);
00229 
00230 
00231 #endif /* LIBWPD_INTERNAL_H */

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