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richedit: Add helpers for setting cursor to start/end of text.

This commit is contained in:
Dylan Smith 2009-08-12 09:06:05 -04:00 committed by Alexandre Julliard
parent 32dcd3bbe1
commit 2bc726930f
3 changed files with 32 additions and 36 deletions
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58
dlls/riched20/caret.c
View File

@ -27,6 +27,21 @@ WINE_DEFAULT_DEBUG_CHANNEL(richedit);
static BOOL
ME_MoveCursorChars(ME_TextEditor *editor, ME_Cursor *pCursor, int nRelOfs);
void ME_SetCursorToStart(ME_TextEditor *editor, ME_Cursor *cursor)
{
cursor->pPara = editor->pBuffer->pFirst->member.para.next_para;
cursor->pRun = ME_FindItemFwd(cursor->pPara, diRun);
cursor->nOffset = 0;
}
void ME_SetCursorToEnd(ME_TextEditor *editor, ME_Cursor *cursor)
{
cursor->pPara = editor->pBuffer->pLast->member.para.prev_para;
cursor->pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
cursor->nOffset = 0;
}
int ME_GetSelectionOfs(ME_TextEditor *editor, int *from, int *to)
{
*from = ME_GetCursorOfs(&editor->pCursors[0]);
@ -58,9 +73,9 @@ int ME_GetSelection(ME_TextEditor *editor, ME_Cursor **from, ME_Cursor **to)
int ME_GetTextLength(ME_TextEditor *editor)
{
ME_DisplayItem *pLast = editor->pBuffer->pLast;
return ME_CharOfsFromRunOfs(editor, pLast->member.para.prev_para,
ME_FindItemBack(pLast, diRun), 0);
ME_Cursor cursor;
ME_SetCursorToEnd(editor, &cursor);
return ME_GetCursorOfs(&cursor);
}
@ -111,12 +126,8 @@ int ME_SetSelection(ME_TextEditor *editor, int from, int to)
/* select all */
if (from == 0 && to == -1)
{
editor->pCursors[1].pPara = editor->pBuffer->pFirst->member.para.next_para;
editor->pCursors[1].pRun = ME_FindItemFwd(editor->pCursors[1].pPara, diRun);
editor->pCursors[1].nOffset = 0;
editor->pCursors[0].pPara = editor->pBuffer->pLast->member.para.prev_para;
editor->pCursors[0].pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
editor->pCursors[0].nOffset = 0;
ME_SetCursorToStart(editor, &editor->pCursors[1]);
ME_SetCursorToEnd(editor, &editor->pCursors[0]);
ME_InvalidateSelection(editor);
ME_ClearTempStyle(editor);
return len + 1;
@ -164,9 +175,7 @@ int ME_SetSelection(ME_TextEditor *editor, int from, int to)
if (selectionEnd)
{
editor->pCursors[0].pPara = editor->pBuffer->pLast->member.para.prev_para;
editor->pCursors[0].pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
editor->pCursors[0].nOffset = 0;
ME_SetCursorToEnd(editor, &editor->pCursors[0]);
editor->pCursors[1] = editor->pCursors[0];
ME_InvalidateSelection(editor);
ME_ClearTempStyle(editor);
@ -812,12 +821,8 @@ ME_SelectByType(ME_TextEditor *editor, ME_SelectionType selectionType)
case stDocument:
/* Select everything with cursor anchored from the start of the text */
editor->nSelectionType = stDocument;
editor->pCursors[1].pPara = editor->pBuffer->pFirst->member.para.next_para;
editor->pCursors[1].pRun = ME_FindItemFwd(editor->pCursors[1].pPara, diRun);
editor->pCursors[1].nOffset = 0;
editor->pCursors[0].pPara = editor->pBuffer->pLast->member.para.prev_para;
editor->pCursors[0].pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
editor->pCursors[0].nOffset = 0;
ME_SetCursorToStart(editor, &editor->pCursors[1]);
ME_SetCursorToEnd(editor, &editor->pCursors[0]);
break;
default: assert(0);
}
@ -1331,9 +1336,7 @@ static void ME_ArrowPageUp(ME_TextEditor *editor, ME_Cursor *pCursor)
if (editor->vert_si.nPos < p->member.row.nHeight)
{
pCursor->pPara = editor->pBuffer->pFirst->member.para.next_para;
pCursor->pRun = ME_FindItemFwd(pCursor->pPara, diRun);
pCursor->nOffset = 0;
ME_SetCursorToStart(editor, pCursor);
editor->bCaretAtEnd = FALSE;
/* Native clears seems to clear this x value on page up at the top
* of the text, but not on page down at the end of the text.
@ -1398,9 +1401,7 @@ static void ME_ArrowPageDown(ME_TextEditor *editor, ME_Cursor *pCursor)
if (editor->vert_si.nPos >= y - editor->sizeWindow.cy)
{
pCursor->pPara = editor->pBuffer->pLast->member.para.prev_para;
pCursor->pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
pCursor->nOffset = 0;
ME_SetCursorToEnd(editor, pCursor);
editor->bCaretAtEnd = FALSE;
} else {
ME_DisplayItem *pRun = pCursor->pRun;
@ -1469,9 +1470,7 @@ static void ME_ArrowHome(ME_TextEditor *editor, ME_Cursor *pCursor)
static void ME_ArrowCtrlHome(ME_TextEditor *editor, ME_Cursor *pCursor)
{
pCursor->pPara = editor->pBuffer->pFirst->member.para.next_para;
pCursor->pRun = ME_FindItemFwd(pCursor->pPara, diRun);
pCursor->nOffset = 0;
ME_SetCursorToStart(editor, pCursor);
editor->bCaretAtEnd = FALSE;
}
@ -1502,10 +1501,7 @@ static void ME_ArrowEnd(ME_TextEditor *editor, ME_Cursor *pCursor)
static void ME_ArrowCtrlEnd(ME_TextEditor *editor, ME_Cursor *pCursor)
{
pCursor->pPara = editor->pBuffer->pLast->member.para.prev_para;
pCursor->pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
assert(pCursor->pRun->member.run.nFlags & MERF_ENDPARA);
pCursor->nOffset = 0;
ME_SetCursorToEnd(editor, pCursor);
editor->bCaretAtEnd = FALSE;
}

8
dlls/riched20/editor.c
View File

@ -1882,7 +1882,7 @@ static int ME_GetTextEx(ME_TextEditor *editor, GETTEXTEX *ex, LPARAM pText)
}
else
{
ME_CursorFromCharOfs(editor, 0, &start);
ME_SetCursorToStart(editor, &start);
nChars = INT_MAX;
}
if (ex->codepage == 1200)
@ -2623,9 +2623,7 @@ ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
*/
ed->nCursors = 4;
ed->pCursors = ALLOC_N_OBJ(ME_Cursor, ed->nCursors);
ed->pCursors[0].pPara = ed->pBuffer->pFirst->member.para.next_para;
ed->pCursors[0].pRun = ME_FindItemFwd(ed->pCursors[0].pPara, diRun);
ed->pCursors[0].nOffset = 0;
ME_SetCursorToStart(ed, &ed->pCursors[0]);
ed->pCursors[1] = ed->pCursors[0];
ed->pCursors[2] = ed->pCursors[0];
ed->pCursors[3] = ed->pCursors[1];
@ -2645,7 +2643,7 @@ ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
ed->nUndoMode = umAddToUndo;
ed->nParagraphs = 1;
ed->nLastSelStart = ed->nLastSelEnd = 0;
ed->pLastSelStartPara = ed->pLastSelEndPara = ME_FindItemFwd(ed->pBuffer->pFirst, diParagraph);
ed->pLastSelStartPara = ed->pLastSelEndPara = ed->pCursors[0].pPara;
ed->bHideSelection = FALSE;
ed->pfnWordBreak = NULL;
ed->lpOleCallback = NULL;

2
dlls/riched20/editor.h
View File

@ -155,6 +155,8 @@ void ME_GetDefaultCharFormat(ME_TextEditor *editor, CHARFORMAT2W *pFmt);
void ME_SetDefaultCharFormat(ME_TextEditor *editor, CHARFORMAT2W *mod);
/* caret.c */
void ME_SetCursorToStart(ME_TextEditor *editor, ME_Cursor *cursor);
void ME_SetCursorToEnd(ME_TextEditor *editor, ME_Cursor *cursor);
int ME_SetSelection(ME_TextEditor *editor, int from, int to);
void ME_HideCaret(ME_TextEditor *ed);
void ME_ShowCaret(ME_TextEditor *ed);