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richedit: Use ME_MoveCursorChars in ME_FindText to find relative offset. 

When a previous character needed to be found, it is simpler to move
existing cursor rather than retravese the linked list to find the offset
again.
This commit is contained in:
Dylan Smith 2009-08-13 08:44:27 -04:00 committed by Alexandre Julliard
parent 54b53b6018
commit 989bdd1579
1 changed files with 32 additions and 33 deletions
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65
dlls/riched20/editor.c
View File

@ -1640,10 +1640,8 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
{
const int nLen = lstrlenW(text);
const int nTextLen = ME_GetTextLength(editor);
int nStart, nEnd;
int nMin, nMax;
ME_DisplayItem *item;
ME_DisplayItem *para;
ME_Cursor cursor;
WCHAR wLastChar = ' ';
TRACE("flags==0x%08x, chrg->cpMin==%d, chrg->cpMax==%d text==%s\n",
@ -1704,17 +1702,17 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
/* If possible, find the character before where the search starts */
if ((flags & FR_WHOLEWORD) && nMin)
{
ME_RunOfsFromCharOfs(editor, nMin - 1, NULL, &item, &nStart);
wLastChar = item->member.run.strText->szData[nStart];
ME_CursorFromCharOfs(editor, nMin - 1, &cursor);
wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
ME_MoveCursorChars(editor, &cursor, 1);
} else {
ME_CursorFromCharOfs(editor, nMin, &cursor);
}
ME_RunOfsFromCharOfs(editor, nMin, &para, &item, &nStart);
while (item
&& para->member.para.nCharOfs + item->member.run.nCharOfs + nStart + nLen <= nMax)
while (cursor.pRun && ME_GetCursorOfs(&cursor) + nLen <= nMax)
{
ME_DisplayItem *pCurItem = item;
int nCurStart = nStart;
ME_DisplayItem *pCurItem = cursor.pRun;
int nCurStart = cursor.nOffset;
int nMatched = 0;
while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurStart + nMatched], text[nMatched], (flags & FR_MATCHCASE)))
@ -1747,14 +1745,14 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
break;
}
nStart += para->member.para.nCharOfs + item->member.run.nCharOfs;
cursor.nOffset += cursor.pPara->member.para.nCharOfs + cursor.pRun->member.run.nCharOfs;
if (chrgText)
{
chrgText->cpMin = nStart;
chrgText->cpMax = nStart + nLen;
chrgText->cpMin = cursor.nOffset;
chrgText->cpMax = cursor.nOffset + nLen;
}
TRACE("found at %d-%d\n", nStart, nStart + nLen);
return nStart;
TRACE("found at %d-%d\n", cursor.nOffset, cursor.nOffset + nLen);
return cursor.nOffset;
}
if (nCurStart + nMatched == pCurItem->member.run.strText->nLen)
{
@ -1767,11 +1765,11 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
else
wLastChar = ' ';
nStart++;
if (nStart == item->member.run.strText->nLen)
cursor.nOffset++;
if (cursor.nOffset == cursor.pRun->member.run.strText->nLen)
{
ME_NextRun(&para, &item);
nStart = 0;
ME_NextRun(&cursor.pPara, &cursor.pRun);
cursor.nOffset = 0;
}
}
}
@ -1780,18 +1778,18 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
/* If possible, find the character after where the search ends */
if ((flags & FR_WHOLEWORD) && nMax < nTextLen - 1)
{
ME_RunOfsFromCharOfs(editor, nMax + 1, NULL, &item, &nEnd);
wLastChar = item->member.run.strText->szData[nEnd];
ME_CursorFromCharOfs(editor, nMax + 1, &cursor);
wLastChar = cursor.pRun->member.run.strText->szData[cursor.nOffset];
ME_MoveCursorChars(editor, &cursor, -1);
} else {
ME_CursorFromCharOfs(editor, nMax, &cursor);
}
ME_RunOfsFromCharOfs(editor, nMax, &para, &item, &nEnd);
while (item
&& para->member.para.nCharOfs + item->member.run.nCharOfs + nEnd - nLen >= nMin)
while (cursor.pRun && ME_GetCursorOfs(&cursor) - nLen >= nMin)
{
ME_DisplayItem *pCurItem = item;
ME_DisplayItem *pCurPara = para;
int nCurEnd = nEnd;
ME_DisplayItem *pCurItem = cursor.pRun;
ME_DisplayItem *pCurPara = cursor.pPara;
int nCurEnd = cursor.nOffset;
int nMatched = 0;
if (nCurEnd == 0)
@ -1811,6 +1809,7 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
ME_DisplayItem *pPrevItem = pCurItem;
int nPrevEnd = nCurEnd;
WCHAR wPrevChar;
int nStart;
/* Check to see if previous character is a whitespace */
if (flags & FR_WHOLEWORD)
@ -1854,11 +1853,11 @@ ME_FindText(ME_TextEditor *editor, DWORD flags, const CHARRANGE *chrg, const WCH
else
wLastChar = ' ';
nEnd--;
if (nEnd < 0)
cursor.nOffset--;
if (cursor.nOffset < 0)
{
ME_PrevRun(&para, &item);
nEnd = item->member.run.strText->nLen;
ME_PrevRun(&cursor.pPara, &cursor.pRun);
cursor.nOffset = cursor.pRun->member.run.strText->nLen;
}
}
}