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/*
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* hdrftrlist.c
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* Copyright (C) 2004,2005 A.J. van Os; Released under GNU GPL
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*
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* Description:
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* Build, read and destroy list(s) of Word Header/footer information
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*/
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#include <string.h>
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#include "antiword.h"
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#define HDR_EVEN_PAGES 0
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#define HDR_ODD_PAGES 1
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#define FTR_EVEN_PAGES 2
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#define FTR_ODD_PAGES 3
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#define HDR_FIRST_PAGE 4
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#define FTR_FIRST_PAGE 5
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/*
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* Private structures to hide the way the information
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* is stored from the rest of the program
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*/
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typedef struct hdrftr_local_tag {
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hdrftr_block_type tInfo;
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ULONG ulCharPosStart;
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ULONG ulCharPosNext;
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BOOL bUseful;
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BOOL bTextOriginal;
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} hdrftr_local_type;
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typedef struct hdrftr_mem_tag {
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hdrftr_local_type atElement[6];
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} hdrftr_mem_type;
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/* Variables needed to write the Header/footer Information List */
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static hdrftr_mem_type *pHdrFtrList = NULL;
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static size_t tHdrFtrLen = 0;
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/*
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* vDestroyHdrFtrInfoList - destroy the Header/footer Information List
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*/
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void
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vDestroyHdrFtrInfoList(void)
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{
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hdrftr_mem_type *pRecord;
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output_type *pCurr, *pNext;
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size_t tHdrFtr, tIndex;
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DBG_MSG("vDestroyHdrFtrInfoList");
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/* Free the Header/footer Information List */
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for (tHdrFtr = 0; tHdrFtr < tHdrFtrLen; tHdrFtr++) {
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pRecord = pHdrFtrList + tHdrFtr;
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for (tIndex = 0;
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tIndex < elementsof(pRecord->atElement);
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tIndex++) {
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if (!pRecord->atElement[tIndex].bTextOriginal) {
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continue;
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}
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pCurr = pRecord->atElement[tIndex].tInfo.pText;
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while (pCurr != NULL) {
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pCurr->szStorage = xfree(pCurr->szStorage);
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pNext = pCurr->pNext;
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pCurr = xfree(pCurr);
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pCurr = pNext;
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}
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}
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}
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pHdrFtrList = xfree(pHdrFtrList);
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/* Reset all control variables */
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tHdrFtrLen = 0;
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} /* end of vDestroyHdrFtrInfoList */
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/*
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* vCreat8HdrFtrInfoList - Create the Header/footer Information List
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*/
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void
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vCreat8HdrFtrInfoList(const ULONG *aulCharPos, size_t tLength)
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{
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hdrftr_mem_type *pListMember;
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size_t tHdrFtr, tIndex, tMainIndex;
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fail(aulCharPos == NULL);
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DBG_DEC(tLength);
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if (tLength <= 1) {
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return;
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}
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tHdrFtrLen = tLength / 12;
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if (tLength % 12 != 0 && tLength % 12 != 1) {
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tHdrFtrLen++;
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}
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DBG_DEC(tHdrFtrLen);
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pHdrFtrList = xcalloc(tHdrFtrLen, sizeof(hdrftr_mem_type));
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for (tHdrFtr = 0; tHdrFtr < tHdrFtrLen; tHdrFtr++) {
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pListMember = pHdrFtrList + tHdrFtr;
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for (tIndex = 0, tMainIndex = tHdrFtr * 12;
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tIndex < 6 && tMainIndex < tLength;
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tIndex++, tMainIndex++) {
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pListMember->atElement[tIndex].tInfo.pText = NULL;
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pListMember->atElement[tIndex].ulCharPosStart =
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aulCharPos[tMainIndex];
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if (tMainIndex + 1 < tLength) {
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pListMember->atElement[tIndex].ulCharPosNext =
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aulCharPos[tMainIndex + 1];
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} else {
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pListMember->atElement[tIndex].ulCharPosNext =
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aulCharPos[tMainIndex];
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}
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}
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}
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} /* end of vCreat8HdrFtrInfoList */
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/*
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* vCreat6HdrFtrInfoList - Create the Header/footer Information List
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*/
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void
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vCreat6HdrFtrInfoList(const ULONG *aulCharPos, size_t tLength)
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{
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static const size_t atIndex[] =
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{ SIZE_T_MAX, SIZE_T_MAX, FTR_FIRST_PAGE, HDR_FIRST_PAGE,
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FTR_ODD_PAGES, FTR_EVEN_PAGES, HDR_ODD_PAGES, HDR_EVEN_PAGES,
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};
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hdrftr_mem_type *pListMember;
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size_t tHdrFtr, tTmp, tIndex, tMainIndex, tBit;
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UCHAR ucDopSpecification, ucSepSpecification;
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fail(aulCharPos == NULL);
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DBG_DEC(tLength);
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if (tLength <= 1) {
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return;
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}
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tHdrFtrLen = tGetNumberOfSections();
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if (tHdrFtrLen == 0) {
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tHdrFtrLen = 1;
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}
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DBG_DEC(tHdrFtrLen);
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pHdrFtrList = xcalloc(tHdrFtrLen, sizeof(hdrftr_mem_type));
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/* Get the start index in aulCharPos */
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ucDopSpecification = ucGetDopHdrFtrSpecification();
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DBG_HEX(ucDopSpecification & 0xe0);
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tMainIndex = 0;
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for (tBit = 7; tBit >= 5; tBit--) {
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if ((ucDopSpecification & BIT(tBit)) != 0) {
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tMainIndex++;
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}
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}
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DBG_DEC(tMainIndex);
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for (tHdrFtr = 0; tHdrFtr < tHdrFtrLen; tHdrFtr++) {
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ucSepSpecification = ucGetSepHdrFtrSpecification(tHdrFtr);
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DBG_HEX(ucSepSpecification & 0xfc);
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pListMember = pHdrFtrList + tHdrFtr;
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for (tTmp = 0;
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tTmp < elementsof(pListMember->atElement);
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tTmp++) {
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pListMember->atElement[tTmp].tInfo.pText = NULL;
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}
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for (tBit = 7; tBit >= 2; tBit--) {
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if (tMainIndex >= tLength) {
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break;
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}
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if ((ucSepSpecification & BIT(tBit)) == 0) {
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continue;
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}
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tIndex = atIndex[tBit];
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fail(tIndex >= 6);
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pListMember->atElement[tIndex].ulCharPosStart =
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aulCharPos[tMainIndex];
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if (tMainIndex + 1 < tLength) {
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pListMember->atElement[tIndex].ulCharPosNext =
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aulCharPos[tMainIndex + 1];
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} else {
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pListMember->atElement[tIndex].ulCharPosNext =
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aulCharPos[tMainIndex];
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}
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tMainIndex++;
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}
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}
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} /* end of vCreat6HdrFtrInfoList */
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/*
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* vCreat2HdrFtrInfoList - Create the Header/footer Information List
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*/
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void
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vCreat2HdrFtrInfoList(const ULONG *aulCharPos, size_t tLength)
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{
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vCreat6HdrFtrInfoList(aulCharPos, tLength);
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} /* end of vCreat2HdrFtrInfoList */
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/*
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* pGetHdrFtrInfo - get the Header/footer information
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*/
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const hdrftr_block_type *
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pGetHdrFtrInfo(int iSectionIndex,
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BOOL bWantHeader, BOOL bOddPage, BOOL bFirstInSection)
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{
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hdrftr_mem_type *pCurr;
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fail(iSectionIndex < 0);
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fail(pHdrFtrList == NULL && tHdrFtrLen != 0);
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if (pHdrFtrList == NULL || tHdrFtrLen == 0) {
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/* No information */
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return NULL;
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}
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if (iSectionIndex < 0) {
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iSectionIndex = 0;
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} else if (iSectionIndex >= (int)tHdrFtrLen) {
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iSectionIndex = (int)(tHdrFtrLen - 1);
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}
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pCurr = pHdrFtrList + iSectionIndex;
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if (bFirstInSection) {
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if (bWantHeader) {
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return &pCurr->atElement[HDR_FIRST_PAGE].tInfo;
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} else {
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return &pCurr->atElement[FTR_FIRST_PAGE].tInfo;
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}
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} else {
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if (bWantHeader) {
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if (bOddPage) {
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return &pCurr->atElement[HDR_ODD_PAGES].tInfo;
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} else {
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return &pCurr->atElement[HDR_EVEN_PAGES].tInfo;
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}
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} else {
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if (bOddPage) {
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return &pCurr->atElement[FTR_ODD_PAGES].tInfo;
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} else {
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return &pCurr->atElement[FTR_EVEN_PAGES].tInfo;
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}
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}
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}
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} /* end of pGetHdrFtrInfo */
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/*
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* lComputeHdrFtrHeight - compute the height of a header or footer
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*
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* Returns the height in DrawUnits
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*/
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static long
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lComputeHdrFtrHeight(const output_type *pAnchor)
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{
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const output_type *pCurr;
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long lTotal;
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USHORT usFontSizeMax;
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lTotal = 0;
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usFontSizeMax = 0;
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for (pCurr = pAnchor; pCurr != NULL; pCurr = pCurr->pNext) {
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if (pCurr->tNextFree == 1) {
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if (pCurr->szStorage[0] == PAR_END) {
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/* End of a paragraph */
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lTotal += lComputeLeading(usFontSizeMax);
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lTotal += lMilliPoints2DrawUnits(
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(long)pCurr->usFontSize * 200);
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usFontSizeMax = 0;
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continue;
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}
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if (pCurr->szStorage[0] == HARD_RETURN) {
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/* End of a line */
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lTotal += lComputeLeading(usFontSizeMax);
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usFontSizeMax = 0;
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continue;
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}
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}
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if (pCurr->usFontSize > usFontSizeMax) {
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usFontSizeMax = pCurr->usFontSize;
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}
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}
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if (usFontSizeMax != 0) {
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/* Height of the last paragraph */
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lTotal += lComputeLeading(usFontSizeMax);
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}
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return lTotal;
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} /* end of lComputeHdrFtrHeight */
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/*
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* vPrepareHdrFtrText - prepare the header/footer text
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*/
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290 |
void
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vPrepareHdrFtrText(FILE *pFile)
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292 |
{
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hdrftr_mem_type *pCurr, *pPrev;
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hdrftr_local_type *pTmp;
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output_type *pText;
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size_t tHdrFtr, tIndex;
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297 |
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298 |
fail(pFile == NULL);
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fail(pHdrFtrList == NULL && tHdrFtrLen != 0);
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300 |
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301 |
if (pHdrFtrList == NULL || tHdrFtrLen == 0) {
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/* No information */
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return;
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304 |
}
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/* Fill text, text height and useful-ness */
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for (tHdrFtr = 0; tHdrFtr < tHdrFtrLen; tHdrFtr++) {
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308 |
pCurr = pHdrFtrList + tHdrFtr;
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for (tIndex = 0;
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310 |
tIndex < elementsof(pHdrFtrList->atElement);
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311 |
tIndex++) {
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312 |
pTmp = &pCurr->atElement[tIndex];
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313 |
pTmp->bUseful =
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pTmp->ulCharPosStart != pTmp->ulCharPosNext;
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315 |
if (pTmp->bUseful) {
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316 |
pText = pHdrFtrDecryptor(pFile,
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317 |
pTmp->ulCharPosStart,
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318 |
pTmp->ulCharPosNext);
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pTmp->tInfo.pText = pText;
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320 |
pTmp->tInfo.lHeight =
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321 |
lComputeHdrFtrHeight(pText);
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322 |
pTmp->bTextOriginal = pText != NULL;
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323 |
} else {
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324 |
pTmp->tInfo.pText = NULL;
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325 |
pTmp->tInfo.lHeight = 0;
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pTmp->bTextOriginal = FALSE;
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}
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}
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}
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330 |
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/* Replace not-useful records by using inheritance */
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332 |
if (pHdrFtrList->atElement[HDR_FIRST_PAGE].bUseful) {
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pTmp = &pHdrFtrList->atElement[HDR_ODD_PAGES];
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334 |
if (!pTmp->bUseful) {
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335 |
*pTmp = pHdrFtrList->atElement[HDR_FIRST_PAGE];
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336 |
pTmp->bTextOriginal = FALSE;
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337 |
}
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338 |
pTmp = &pHdrFtrList->atElement[HDR_EVEN_PAGES];
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339 |
if (!pTmp->bUseful) {
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340 |
*pTmp = pHdrFtrList->atElement[HDR_FIRST_PAGE];
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341 |
pTmp->bTextOriginal = FALSE;
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342 |
}
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343 |
}
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344 |
if (pHdrFtrList->atElement[FTR_FIRST_PAGE].bUseful) {
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345 |
pTmp = &pHdrFtrList->atElement[FTR_ODD_PAGES];
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346 |
if (!pTmp->bUseful) {
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347 |
*pTmp = pHdrFtrList->atElement[FTR_FIRST_PAGE];
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|
348 |
pTmp->bTextOriginal = FALSE;
|
|
|
349 |
}
|
|
|
350 |
pTmp = &pHdrFtrList->atElement[FTR_EVEN_PAGES];
|
|
|
351 |
if (!pTmp->bUseful) {
|
|
|
352 |
*pTmp = pHdrFtrList->atElement[FTR_FIRST_PAGE];
|
|
|
353 |
pTmp->bTextOriginal = FALSE;
|
|
|
354 |
}
|
|
|
355 |
}
|
|
|
356 |
for (tHdrFtr = 1, pCurr = &pHdrFtrList[1];
|
|
|
357 |
tHdrFtr < tHdrFtrLen;
|
|
|
358 |
tHdrFtr++, pCurr++) {
|
|
|
359 |
pPrev = pCurr - 1;
|
|
|
360 |
for (tIndex = 0;
|
|
|
361 |
tIndex < elementsof(pHdrFtrList->atElement);
|
|
|
362 |
tIndex++) {
|
|
|
363 |
if (!pCurr->atElement[tIndex].bUseful &&
|
|
|
364 |
pPrev->atElement[tIndex].bUseful) {
|
|
|
365 |
pCurr->atElement[tIndex] =
|
|
|
366 |
pPrev->atElement[tIndex];
|
|
|
367 |
pCurr->atElement[tIndex].bTextOriginal = FALSE;
|
|
|
368 |
}
|
|
|
369 |
}
|
|
|
370 |
}
|
|
|
371 |
} /* end of vPrepareHdrFtrText */
|