88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
|
#include "shellprv.h"
|
||
|
|
#pragma hdrstop
|
||
|
|
|
||
|
|
// convert screen coords to listview view coordinates
|
||
|
|
|
||
|
|
// convert listview client window coords into listview view coordinates
|
||
|
|
|
||
|
|
void LVUtil_ClientToLV(HWND hwndLV, LPPOINT ppt)
|
||
|
|
{
|
||
|
|
POINT ptOrigin;
|
||
|
|
|
||
|
|
if (!ListView_GetOrigin(hwndLV, &ptOrigin))
|
||
|
|
return;
|
||
|
|
|
||
|
|
ppt->x += ptOrigin.x;
|
||
|
|
ppt->y += ptOrigin.y;
|
||
|
|
}
|
||
|
|
|
||
|
|
void LVUtil_ScreenToLV(HWND hwndLV, LPPOINT ppt)
|
||
|
|
{
|
||
|
|
ScreenToClient(hwndLV, ppt);
|
||
|
|
|
||
|
|
LVUtil_ClientToLV(hwndLV, ppt);
|
||
|
|
}
|
||
|
|
|
||
|
|
// convert listview client window coords into listview view coordinates
|
||
|
|
|
||
|
|
void LVUtil_LVToClient(HWND hwndLV, LPPOINT ppt)
|
||
|
|
{
|
||
|
|
POINT ptOrigin;
|
||
|
|
|
||
|
|
if (!ListView_GetOrigin(hwndLV, &ptOrigin))
|
||
|
|
return;
|
||
|
|
|
||
|
|
ppt->x -= ptOrigin.x;
|
||
|
|
ppt->y -= ptOrigin.y;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Parameters:
|
||
|
|
// hwndLV -- Specifies the listview window
|
||
|
|
// nItem -- Specifies the item to be altered
|
||
|
|
// uState -- Specifies the new state of the item
|
||
|
|
// uMask -- Specifies the state mask
|
||
|
|
//
|
||
|
|
void LVUtil_DragSetItemState(HWND hwndLV, int nItem, UINT uState, UINT uMask)
|
||
|
|
{
|
||
|
|
// check the state to see if it is already as we want to avoid
|
||
|
|
// flashing while dragging
|
||
|
|
|
||
|
|
if (ListView_GetItemState(hwndLV, nItem, uMask) != (uState & uMask))
|
||
|
|
{
|
||
|
|
DAD_ShowDragImage(FALSE);
|
||
|
|
ListView_SetItemState(hwndLV, nItem, uState, uMask);
|
||
|
|
UpdateWindow(hwndLV); // REVIEW, needed?
|
||
|
|
DAD_ShowDragImage(TRUE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void LVUtil_DragSelectItem(HWND hwndLV, int nItem)
|
||
|
|
{
|
||
|
|
int nTemp;
|
||
|
|
|
||
|
|
for (nTemp = ListView_GetItemCount(hwndLV) - 1; nTemp >= 0; --nTemp)
|
||
|
|
{
|
||
|
|
LVUtil_DragSetItemState(hwndLV, nTemp, nTemp == nItem ? LVIS_DROPHILITED : 0, LVIS_DROPHILITED);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Note that it returns NULL, if iItem is -1.
|
||
|
|
//
|
||
|
|
LPARAM LVUtil_GetLParam(HWND hwndLV, int i)
|
||
|
|
{
|
||
|
|
LV_ITEM item;
|
||
|
|
|
||
|
|
item.mask = LVIF_PARAM;
|
||
|
|
item.iItem = i;
|
||
|
|
item.iSubItem = 0;
|
||
|
|
item.lParam = 0;
|
||
|
|
if (i != -1)
|
||
|
|
{
|
||
|
|
ListView_GetItem(hwndLV, &item);
|
||
|
|
}
|
||
|
|
|
||
|
|
return item.lParam;
|
||
|
|
}
|