base/applications/msconfig_new/comctl32ex/listview.c

   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 */