ReactOS  0.4.14-dev-98-gb0d4763
row.c
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1 /*
2  * RichEdit - Operations on rows of text (rows are recreated during
3  * wrapping and are used for displaying the document, they don't keep any
4  * true document content; delete all rows, rewrap all paragraphs and
5  * you get them back).
6  *
7  * Copyright 2004 by Krzysztof Foltman
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22  */
23 
24 
25 #include "editor.h"
26 
27 /* I'm sure these functions would simplify some code in caret ops etc,
28  * I just didn't remember them when I wrote that code
29  */
30 
33 }
34 
35 /*
36 ME_DisplayItem *ME_RowEnd(ME_DisplayItem *item) {
37  ME_DisplayItem *item2 = ME_FindItemFwd(item, diStartRowOrParagraphOrEnd);
38  if (!item2) return NULL;
39  return ME_FindItemBack(item, diRun);
40 }
41 */
42 
45 {
47  int nCount = 0;
48 
49  while (item->type == diParagraph &&
50  nCount + item->member.para.nRows <= nRow)
51  {
52  nCount += item->member.para.nRows;
53  item = item->member.para.next_para;
54  }
55  if (item->type != diParagraph)
56  return NULL;
57  for (item = ME_FindItemFwd(item, diStartRow); item && nCount < nRow; nCount++)
59  return item;
60 }
61 
62 
63 int
65 {
67  int nRow = 0;
68 
69  while (item->type == diParagraph &&
70  item->member.para.next_para->member.para.nCharOfs <= nOfs)
71  {
72  nRow += item->member.para.nRows;
73  item = item->member.para.next_para;
74  }
75  if (item->type == diParagraph)
76  {
77  ME_DisplayItem *next_para = item->member.para.next_para;
78 
79  nOfs -= item->member.para.nCharOfs;
82  {
83  if (item == next_para)
84  break;
86  if (item->member.run.nCharOfs > nOfs)
87  break;
88  nRow++;
89  }
90  }
91  return nRow;
92 }
ME_DisplayItem * ME_FindItemBackOrHere(ME_DisplayItem *di, ME_DIType nTypeOrClass) DECLSPEC_HIDDEN
Definition: list.c:124
ME_DisplayItem * pFirst
Definition: editstr.h:272
ME_DisplayItem * ME_FindRowWithNumber(ME_TextEditor *editor, int nRow)
Definition: row.c:44
ME_TextBuffer * pBuffer
Definition: editstr.h:390
smooth NULL
Definition: ftsmooth.c:416
Definition: editstr.h:91
int ME_RowNumberFromCharOfs(ME_TextEditor *editor, int nOfs)
Definition: row.c:64
static ATOM item
Definition: dde.c:856
ME_DisplayItem * ME_RowStart(ME_DisplayItem *item)
Definition: row.c:31
ME_DisplayItem * ME_FindItemFwd(ME_DisplayItem *di, ME_DIType nTypeOrClass) DECLSPEC_HIDDEN
Definition: list.c:134