1 /*
2  * PROJECT:     ReactOS Applications
3  * LICENSE:     LGPL - See COPYING in the top level directory
4  * FILE:        base/applications/msconfig_new/comctl32ex/listview.c
5  * PURPOSE:     List-View helper functions.
6  * COPYRIGHT:   Copyright 2011-2012 Hermes BELUSCA - MAITO <hermes.belusca@sfr.fr>
7  */
8 
9 #include "precomp.h"
10 #include "listview.h"
11 
12 /////////////  ListView Sorting  /////////////
13 
14 typedef struct __tagSort
15 {
16     HWND hList;
17     int nClickedColumn;
18     BOOL bSortAsc;
19 } Sort, *PSort;
20 
21 int CALLBACK
22 SortListView(LPARAM lItemParam1,
23              LPARAM lItemParam2,
24              LPARAM lPSort_S)
25 {
26     PSort pSort = (PSort)lPSort_S;
27 
28     int iItem1 = (int)lItemParam1;
29     int iItem2 = (int)lItemParam2;
30 
31     WCHAR strItem1[MAX_VALUE_NAME];
32     WCHAR strItem2[MAX_VALUE_NAME];
33 
34     ListView_GetItemText(pSort->hList, iItem1, pSort->nClickedColumn, strItem1, MAX_VALUE_NAME);
35     ListView_GetItemText(pSort->hList, iItem2, pSort->nClickedColumn, strItem2, MAX_VALUE_NAME);
36 
37     // StrCmpLogicalW helps in comparing numbers intelligently, 10 is greater that 2, other
38     // wise string comparison will always return 2 is greater that 10...
39     return ( pSort->bSortAsc ? StrCmpLogicalW(strItem1, strItem2) : StrCmpLogicalW(strItem2, strItem1) );
40 }
41 
42 BOOL
43 ListView_SortEx(HWND hListView,
44                 int iSortingColumn,
45                 int iSortedColumn)
46 {
47     HWND hHeader;
48     HDITEM hColumn;
49     BOOL bSortAsc;
50     Sort sort;
51 
52     if ((GetWindowLongPtr(hListView, GWL_STYLE) & ~LVS_NOSORTHEADER) == 0)
53         return TRUE;
54 
55     hHeader = ListView_GetHeader(hListView);
56     SecureZeroMemory(&hColumn, sizeof(hColumn));
57 
58     if ( (iSortedColumn != -1) && (iSortedColumn != iSortingColumn) )
59     {
60         hColumn.mask = HDI_FORMAT | HDI_LPARAM;
61         Header_GetItem(hHeader, iSortedColumn, &hColumn);
62         hColumn.fmt &= ~HDF_SORTUP & ~HDF_SORTDOWN;
63         hColumn.lParam = 0; // 0: deactivated, 1: false, 2: true.
64         Header_SetItem(hHeader, iSortedColumn, &hColumn);
65     }
66 
67     hColumn.mask = HDI_FORMAT | HDI_LPARAM;
68     Header_GetItem(hHeader, iSortingColumn, &hColumn);
69 
70     bSortAsc = !(hColumn.lParam == 2); // 0: deactivated, 1: false, 2: true.
71 
72     hColumn.fmt &= (bSortAsc ? ~HDF_SORTDOWN : ~HDF_SORTUP );
73     hColumn.fmt |= (bSortAsc ?  HDF_SORTUP   : HDF_SORTDOWN);
74     hColumn.lParam = (LPARAM)(bSortAsc ? 2 : 1);
75     Header_SetItem(hHeader, iSortingColumn, &hColumn);
76 
77     /* Sort the list */
78     sort.bSortAsc = bSortAsc;
79     sort.hList    = hListView;
80     sort.nClickedColumn = iSortingColumn;
81     return ListView_SortItemsEx(hListView, SortListView, (LPARAM)&sort);
82 }
83 
84 //////////////////////////////////////////////
85 
86 /* EOF */
87