Sweden-Number/dlls/riched20/list.c

193 lines
5.5 KiB
C

/*
* RichEdit - Basic operations on double linked lists.
*
* Copyright 2004 by Krzysztof Foltman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "editor.h"
WINE_DEFAULT_DEBUG_CHANNEL(richedit_lists);
void ME_InsertBefore(ME_DisplayItem *diWhere, ME_DisplayItem *diWhat)
{
diWhat->next = diWhere;
diWhat->prev = diWhere->prev;
diWhere->prev->next = diWhat;
diWhat->next->prev = diWhat;
}
void ME_Remove(ME_DisplayItem *diWhere)
{
ME_DisplayItem *diNext = diWhere->next;
ME_DisplayItem *diPrev = diWhere->prev;
assert(diNext);
assert(diPrev);
diPrev->next = diNext;
diNext->prev = diPrev;
}
ME_DisplayItem *ME_FindItemBack(ME_DisplayItem *di, ME_DIType nTypeOrClass)
{
if (!di)
return NULL;
di = di->prev;
while(di!=NULL) {
if (ME_DITypesEqual(di->type, nTypeOrClass))
return di;
di = di->prev;
}
return NULL;
}
ME_DisplayItem *ME_FindItemBackOrHere(ME_DisplayItem *di, ME_DIType nTypeOrClass)
{
while(di!=NULL) {
if (ME_DITypesEqual(di->type, nTypeOrClass))
return di;
di = di->prev;
}
return NULL;
}
ME_DisplayItem *ME_FindItemFwd(ME_DisplayItem *di, ME_DIType nTypeOrClass)
{
if (!di) return NULL;
di = di->next;
while(di!=NULL) {
if (ME_DITypesEqual(di->type, nTypeOrClass))
return di;
di = di->next;
}
return NULL;
}
ME_DisplayItem *ME_FindItemFwdOrHere(ME_DisplayItem *di, ME_DIType nTypeOrClass)
{
while(di!=NULL) {
if (ME_DITypesEqual(di->type, nTypeOrClass))
return di;
di = di->next;
}
return NULL;
}
BOOL ME_DITypesEqual(ME_DIType type, ME_DIType nTypeOrClass)
{
if (type==nTypeOrClass)
return TRUE;
if (nTypeOrClass==diRunOrParagraph && (type==diRun || type==diParagraph))
return TRUE;
if (nTypeOrClass==diRunOrStartRow && (type==diRun || type==diStartRow))
return TRUE;
if (nTypeOrClass==diParagraphOrEnd && (type==diTextEnd || type==diParagraph))
return TRUE;
if (nTypeOrClass==diStartRowOrParagraph && (type==diStartRow || type==diParagraph))
return TRUE;
if (nTypeOrClass==diStartRowOrParagraphOrEnd
&& (type==diStartRow || type==diParagraph || type==diTextEnd))
return TRUE;
if (nTypeOrClass==diRunOrParagraphOrEnd
&& (type==diRun || type==diParagraph || type==diTextEnd))
return TRUE;
return FALSE;
}
void ME_DestroyDisplayItem(ME_DisplayItem *item) {
/* TRACE("type=%s\n", ME_GetDITypeName(item->type)); */
if (item->type==diParagraph || item->type == diUndoSetParagraphFormat) {
FREE_OBJ(item->member.para.pFmt);
}
if (item->type==diRun || item->type == diUndoInsertRun) {
ME_ReleaseStyle(item->member.run.style);
ME_DestroyString(item->member.run.strText);
}
if (item->type==diUndoSetCharFormat || item->type==diUndoSetDefaultCharFormat) {
ME_ReleaseStyle(item->member.ustyle);
}
FREE_OBJ(item);
}
ME_DisplayItem *ME_MakeDI(ME_DIType type) {
ME_DisplayItem *item = ALLOC_OBJ(ME_DisplayItem);
ZeroMemory(item, sizeof(ME_DisplayItem));
item->type = type;
item->prev = item->next = NULL;
if (type == diParagraph || type == diUndoSplitParagraph) {
item->member.para.pFmt = ALLOC_OBJ(PARAFORMAT2);
item->member.para.pFmt->cbSize = sizeof(PARAFORMAT2);
item->member.para.pFmt->dwMask = 0;
item->member.para.nFlags = MEPF_REWRAP;
}
return item;
}
const char *ME_GetDITypeName(ME_DIType type)
{
switch(type)
{
case diParagraph: return "diParagraph";
case diRun: return "diRun";
case diTextStart: return "diTextStart";
case diTextEnd: return "diTextEnd";
case diStartRow: return "diStartRow";
case diUndoEndTransaction: return "diUndoEndTransaction";
case diUndoSetParagraphFormat: return "diUndoSetParagraphFormat";
case diUndoSetCharFormat: return "diUndoSetCharFormat";
case diUndoInsertRun: return "diUndoInsertRun";
case diUndoDeleteRun: return "diUndoDeleteRun";
case diUndoJoinParagraphs: return "diJoinParagraphs";
case diUndoSplitParagraph: return "diSplitParagraph";
case diUndoSetDefaultCharFormat: return "diUndoSetDefaultCharFormat";
default: return "?";
}
}
void ME_DumpDocument(ME_TextBuffer *buffer)
{
/* FIXME this is useless, */
ME_DisplayItem *pItem = buffer->pFirst;
TRACE("DOCUMENT DUMP START\n");
while(pItem) {
switch(pItem->type)
{
case diTextStart:
TRACE("Start\n");
break;
case diParagraph:
TRACE("Paragraph(ofs=%d)\n", pItem->member.para.nCharOfs);
break;
case diStartRow:
TRACE(" - StartRow\n");
break;
case diRun:
TRACE(" - Run(\"%s\", %d)\n", debugstr_w(pItem->member.run.strText->szData),
pItem->member.run.nCharOfs);
break;
case diTextEnd:
TRACE("End(ofs=%d)\n", pItem->member.para.nCharOfs);
break;
default:
break;
}
pItem = pItem->next;
}
TRACE("DOCUMENT DUMP END\n");
}