BOOL CReportCtrl::ExamItemStates(int nItem, DWORD dwStates) const
{
if (dwStates == RC_ITEM_NONE)
return FALSE;
if (dwStates & RC_ITEM_ALL)
return TRUE;
return (GetItemStates(nItem) & dwStates) == dwStates;
}
BOOL CReportCtrl::SwapItems(int nItem1, int nItem2)
{
EndEdit(TRUE);
if(!_IsValidIndex(nItem1) || !_IsValidIndex(nItem2))
{
return(FALSE);
}
if(nItem1 == nItem2)
{
return(TRUE);
}
_UnsetSortedColumn();
// record previous states first
const DWORD STATES1 = GetItemStates(nItem1);
const DWORD STATES2 = GetItemStates(nItem2);
const DWORD DATA1 = CListCtrl :: GetItemData(nItem1);
const DWORD DATA2 = CListCtrl :: GetItemData(nItem2);
// swap item texts and images
for(int i = 0; i < GetColumnCount(); i++)
{
CString str = GetItemText(nItem1, i);
CListCtrl :: SetItemText(nItem1, i, GetItemText(nItem2, i));
CListCtrl :: SetItemText(nItem2, i, str);
UINT nImg = GetItemImage(nItem1, i);
SetItemImage(nItem1, i, GetItemImage(nItem2, i));
SetItemImage(nItem2, i, nImg);
}
// swap item data
CListCtrl :: SetItemData(nItem1, DATA2);
CListCtrl :: SetItemData(nItem2, DATA1);
// restore states
SetItemStates(nItem1, STATES2);
SetItemStates(nItem2, STATES1);
return(TRUE);
}
int CReportCtrl::MoveTo(int nItem, int nNewPosition)
{
if(!_IsValidIndex(nItem))
{
return(-1);
}
EndEdit(TRUE);
const int ITEMS = CListCtrl :: GetItemCount();
nNewPosition = max(0, nNewPosition);
nNewPosition = min(ITEMS - 1, nNewPosition);
if(nItem == nNewPosition)
{
return(nNewPosition);
}
_UnsetSortedColumn();
// Backup all states and attributes
const int COLS = GetColumnCount();
const DWORD STATES = GetItemStates(nItem);
const DWORD DATA = CListCtrl :: GetItemData(nItem);
CArray<int, int> aImages;
CStringArray aTexts;
aImages.SetSize(COLS);
aTexts.SetSize(COLS);
for(int i = 0; i < COLS; i++)
{
aImages[i] = GetItemImage(nItem, i);
aTexts[i] = GetItemText(nItem, i);
}
// Delete the item
CListCtrl :: DeleteItem(nItem);
// Insert a new item to the new position
const int IDX = CListCtrl :: InsertItem(nNewPosition, _T(""));
// Restore all states & attributes to the newly inserted item
for(int j = 0; j < COLS; j++)
{
CListCtrl :: SetItemText(IDX, j, aTexts[j]);
SetItemImage(IDX, j, aImages[j]);
}
CListCtrl :: SetItemData(IDX, DATA);
SetItemStates(IDX, STATES);
return(IDX);
}
BOOL CReportCtrl::ExamItemStates(int nItem, DWORD dwStates) const
{
if(dwStates == RC_ITEM_NONE)
{
return(FALSE);
}
if(dwStates & RC_ITEM_ALL)
{
return(TRUE);
}
return(GetItemStates(nItem) & dwStates) == dwStates;
}
BOOL CReportCtrl::_PartialSort(int nStart, int nEnd)
{
if(nStart >= nEnd || !_IsValidIndex(nStart) || !_IsValidIndex(nEnd))
{
return(FALSE);
}
const int COUNT = nEnd - nStart + 1;
int i = 0;
int *aIndices = new int[COUNT];
for(i = 0; i < COUNT; i++)
{
aIndices[i] = nStart + i;
}
_QuickSortRecursive(aIndices, 0, COUNT - 1);
// rearrange items
const int COLS = GetColumnCount();
ROWINFO *aRows = new ROWINFO[COUNT];
for(i = 0; i < COUNT; i++)
{
//int n = aIndices[i];
aRows[i].dwStates = GetItemStates(aIndices[i]);
aRows[i].dwData = CListCtrl :: GetItemData(aIndices[i]);
aRows[i].aImages.SetSize(COLS);
aRows[i].aTexts.SetSize(COLS);
for(int j = 0; j < COLS; j++)
{
aRows[i].aImages[j] = GetItemImage(aIndices[i], j);
aRows[i].aTexts[j] = GetItemText(aIndices[i], j);
}
}
for(i = 0; i < COUNT; i++)
{
SetItemStates(nStart + i, aRows[i].dwStates);
CListCtrl :: SetItemData(nStart + i, aRows[i].dwData);
for(int j = 0; j < COLS; j++)
{
SetItemImage(nStart + i, j, aRows[i].aImages[j]);
CListCtrl :: SetItemText(nStart + i, j, aRows[i].aTexts[j]);
}
}
delete[] aRows;
delete[] aIndices;
return(TRUE);
}