mirror of
https://github.com/reactos/wine.git
synced 2024-11-30 07:00:30 +00:00
Reimplement FindItem (cleaner, faster, more compliant with MSDN).
This commit is contained in:
Dimitrie O. Paun
Alexandre Julliard
parent
1313431b1b
commit
0295e4fceb
@ -267,7 +267,6 @@ DEFINE_COMMON_NOTIFICATIONS(LISTVIEW_INFO, hwndSelf);
|
||||
* forward declarations
|
||||
*/
|
||||
static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *, LPLVITEMW, BOOL);
|
||||
static INT LISTVIEW_SuperHitTestItem(LISTVIEW_INFO *, LPLVHITTESTINFO, BOOL, BOOL);
|
||||
static BOOL LISTVIEW_GetItemMeasures(LISTVIEW_INFO *, INT, LPRECT, LPRECT, LPRECT, LPRECT);
|
||||
static void LISTVIEW_AlignLeft(LISTVIEW_INFO *);
|
||||
static void LISTVIEW_AlignTop(LISTVIEW_INFO *);
|
||||
@ -4359,45 +4358,6 @@ static BOOL LISTVIEW_EnsureVisible(LISTVIEW_INFO *infoPtr, INT nItem, BOOL bPart
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/***
|
||||
* DESCRIPTION:
|
||||
* Retrieves the nearest item, given a position and a direction.
|
||||
*
|
||||
* PARAMETER(S):
|
||||
* [I] infoPtr : valid pointer to the listview structure
|
||||
* [I] POINT : start position
|
||||
* [I] UINT : direction
|
||||
*
|
||||
* RETURN:
|
||||
* Item index if successdful, -1 otherwise.
|
||||
*/
|
||||
static INT LISTVIEW_GetNearestItem(LISTVIEW_INFO *infoPtr, POINT pt, UINT vkDirection)
|
||||
{
|
||||
LVHITTESTINFO ht;
|
||||
RECT rcView;
|
||||
|
||||
TRACE("point %ld,%ld, direction %s\n", pt.x, pt.y,
|
||||
(vkDirection == VK_DOWN) ? "VK_DOWN" :
|
||||
((vkDirection == VK_UP) ? "VK_UP" :
|
||||
((vkDirection == VK_LEFT) ? "VK_LEFT" : "VK_RIGHT")));
|
||||
|
||||
if (!LISTVIEW_GetViewRect(infoPtr, &rcView)) return -1;
|
||||
|
||||
if (!LISTVIEW_GetOrigin(infoPtr, &ht.pt)) return -1;
|
||||
|
||||
ht.pt.x += pt.x;
|
||||
ht.pt.y += pt.y;
|
||||
|
||||
if (vkDirection == VK_DOWN) ht.pt.y += infoPtr->nItemHeight;
|
||||
else if (vkDirection == VK_UP) ht.pt.y -= infoPtr->nItemHeight;
|
||||
else if (vkDirection == VK_LEFT) ht.pt.x -= infoPtr->nItemWidth;
|
||||
else if (vkDirection == VK_RIGHT) ht.pt.x += infoPtr->nItemWidth;
|
||||
|
||||
if (!PtInRect(&rcView, ht.pt)) return -1;
|
||||
|
||||
return LISTVIEW_SuperHitTestItem(infoPtr, &ht, TRUE, TRUE);
|
||||
}
|
||||
|
||||
/***
|
||||
* DESCRIPTION:
|
||||
* Searches for an item with specific characteristics.
|
||||
@ -4414,101 +4374,109 @@ static INT LISTVIEW_GetNearestItem(LISTVIEW_INFO *infoPtr, POINT pt, UINT vkDire
|
||||
static LRESULT LISTVIEW_FindItemW(LISTVIEW_INFO *infoPtr, INT nStart,
|
||||
LPLVFINDINFOW lpFindInfo)
|
||||
{
|
||||
POINT ptItem;
|
||||
WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' };
|
||||
LVITEMW lvItem;
|
||||
BOOL bWrap = FALSE;
|
||||
INT nItem = nStart;
|
||||
INT nLast = infoPtr->nItemCount;
|
||||
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
|
||||
WCHAR szDispText[DISP_TEXT_SIZE] = { '\0' };
|
||||
BOOL bWrap = FALSE, bNearest = FALSE;
|
||||
INT nItem = nStart + 1, nLast = infoPtr->nItemCount, nNearestItem = -1;
|
||||
ULONG xdist, ydist, dist, mindist = 0x7fffffff;
|
||||
POINT Position, Destination;
|
||||
LVITEMW lvItem;
|
||||
|
||||
if ((nItem >= -1) && (lpFindInfo != NULL))
|
||||
{
|
||||
if (!lpFindInfo || nItem < 0) return -1;
|
||||
|
||||
lvItem.mask = 0;
|
||||
if (lpFindInfo->flags & LVFI_PARAM)
|
||||
{
|
||||
lvItem.mask |= LVIF_PARAM;
|
||||
}
|
||||
|
||||
if (lpFindInfo->flags & (LVFI_STRING | LVFI_PARTIAL))
|
||||
{
|
||||
lvItem.mask |= LVIF_TEXT;
|
||||
lvItem.pszText = szDispText;
|
||||
lvItem.cchTextMax = DISP_TEXT_SIZE;
|
||||
lvItem.mask |= LVIF_TEXT;
|
||||
lvItem.pszText = szDispText;
|
||||
lvItem.cchTextMax = DISP_TEXT_SIZE;
|
||||
}
|
||||
|
||||
if (lpFindInfo->flags & LVFI_WRAP)
|
||||
bWrap = TRUE;
|
||||
bWrap = TRUE;
|
||||
|
||||
if (lpFindInfo->flags & LVFI_NEARESTXY)
|
||||
if ((lpFindInfo->flags & LVFI_NEARESTXY) &&
|
||||
(uView == LVS_ICON || uView ==LVS_SMALLICON))
|
||||
{
|
||||
ptItem.x = lpFindInfo->pt.x;
|
||||
ptItem.y = lpFindInfo->pt.y;
|
||||
POINT Origin;
|
||||
|
||||
FIXME("LVFI_NEARESTXY is slow.\n");
|
||||
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return -1;
|
||||
Destination.x = lpFindInfo->pt.x + Origin.x;
|
||||
Destination.y = lpFindInfo->pt.y + Origin.y;
|
||||
switch(lpFindInfo->vkDirection)
|
||||
{
|
||||
case VK_DOWN: Destination.y += infoPtr->nItemHeight; break;
|
||||
case VK_UP: Destination.y -= infoPtr->nItemHeight; break;
|
||||
case VK_RIGHT: Destination.x += infoPtr->nItemWidth; break;
|
||||
case VK_LEFT: Destination.x -= infoPtr->nItemWidth; break;
|
||||
case VK_HOME: Destination.x = Destination.y = 0; break;
|
||||
case VK_END: Destination.x = infoPtr->rcView.right; Destination.y = infoPtr->rcView.bottom; break;
|
||||
case VK_NEXT: Destination.y += infoPtr->rcList.bottom - infoPtr->rcList.top; break;
|
||||
case VK_PRIOR: Destination.y -= infoPtr->rcList.bottom - infoPtr->rcList.top; break;
|
||||
default: FIXME("Unknown vkDirection=%d\n", lpFindInfo->vkDirection);
|
||||
}
|
||||
bNearest = TRUE;
|
||||
}
|
||||
|
||||
while (1)
|
||||
/* if LVFI_PARAM is specified, all other flags are ignored */
|
||||
if (lpFindInfo->flags & LVFI_PARAM)
|
||||
{
|
||||
while (nItem < nLast)
|
||||
{
|
||||
if (lpFindInfo->flags & LVFI_NEARESTXY)
|
||||
{
|
||||
nItem = LISTVIEW_GetNearestItem(infoPtr, ptItem,
|
||||
lpFindInfo->vkDirection);
|
||||
if (nItem != -1)
|
||||
{
|
||||
/* get position of the new item index */
|
||||
if (!ListView_GetItemPosition(infoPtr->hwndSelf, nItem, &ptItem))
|
||||
return -1;
|
||||
}
|
||||
else
|
||||
return -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
nItem++;
|
||||
}
|
||||
lvItem.mask |= LVIF_PARAM;
|
||||
bNearest = FALSE;
|
||||
lvItem.mask &= ~LVIF_TEXT;
|
||||
}
|
||||
|
||||
again:
|
||||
for (; nItem < nLast; nItem++)
|
||||
{
|
||||
lvItem.iItem = nItem;
|
||||
lvItem.iSubItem = 0;
|
||||
if (LISTVIEW_GetItemW(infoPtr, &lvItem))
|
||||
{
|
||||
if (lvItem.mask & LVIF_TEXT)
|
||||
{
|
||||
if (!LISTVIEW_GetItemW(infoPtr, &lvItem)) continue;
|
||||
|
||||
if (lvItem.mask & LVIF_PARAM && lpFindInfo->lParam == lvItem.lParam)
|
||||
return nItem;
|
||||
|
||||
if (lvItem.mask & LVIF_TEXT)
|
||||
{
|
||||
if (lpFindInfo->flags & LVFI_PARTIAL)
|
||||
{
|
||||
if (strstrW(lvItem.pszText, lpFindInfo->psz) == NULL)
|
||||
continue;
|
||||
if (strstrW(lvItem.pszText, lpFindInfo->psz) == NULL) continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (lstrcmpW(lvItem.pszText, lpFindInfo->psz) != 0)
|
||||
continue;
|
||||
if (lstrcmpW(lvItem.pszText, lpFindInfo->psz) != 0) continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (lvItem.mask & LVIF_PARAM)
|
||||
{
|
||||
if (lpFindInfo->lParam != lvItem.lParam)
|
||||
continue;
|
||||
}
|
||||
if (!bNearest) return nItem;
|
||||
|
||||
/* This is very inefficient. To do a good job here,
|
||||
* we need a sorted array of (x,y) item positions */
|
||||
if (!LISTVIEW_GetItemListOrigin(infoPtr, nItem, &Position)) continue;
|
||||
|
||||
return nItem;
|
||||
}
|
||||
}
|
||||
/* compute the distance^2 to the destination */
|
||||
xdist = Destination.x - Position.x;
|
||||
ydist = Destination.y - Position.y;
|
||||
dist = xdist * xdist + ydist * ydist;
|
||||
|
||||
if (bWrap)
|
||||
{
|
||||
nItem = -1;
|
||||
nLast = nStart + 1;
|
||||
bWrap = FALSE;
|
||||
}
|
||||
else
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
/* remember the distance, and item if it's closer */
|
||||
if (dist < mindist)
|
||||
{
|
||||
mindist = dist;
|
||||
nNearestItem = nItem;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
if (bWrap)
|
||||
{
|
||||
nItem = 0;
|
||||
nLast = min(nStart + 1, infoPtr->nItemCount);
|
||||
bWrap = FALSE;
|
||||
goto again;
|
||||
}
|
||||
|
||||
return nNearestItem;
|
||||
}
|
||||
|
||||
/***
|
||||
@ -5568,124 +5536,6 @@ static LRESULT LISTVIEW_GetStringWidthT(LISTVIEW_INFO *infoPtr, LPCWSTR lpszText
|
||||
return stringSize.cx;
|
||||
}
|
||||
|
||||
|
||||
/***
|
||||
* DESCRIPTION:
|
||||
* Determines item if a hit or closest if not
|
||||
*
|
||||
* PARAMETER(S):
|
||||
* [I] infoPtr : valid pointer to the listview structure
|
||||
* [IO] lpht : hit test information
|
||||
* [I] subitem : fill out iSubItem.
|
||||
* [I] bNearItem : return the nearest item
|
||||
*
|
||||
* RETURN:
|
||||
* SUCCESS : item index of hit
|
||||
* FAILURE : -1
|
||||
*/
|
||||
static INT LISTVIEW_SuperHitTestItem(LISTVIEW_INFO *infoPtr, LPLVHITTESTINFO lpht, BOOL subitem, BOOL bNearItem)
|
||||
{
|
||||
LONG lStyle = infoPtr->dwStyle;
|
||||
UINT uView = lStyle & LVS_TYPEMASK;
|
||||
INT i,j,topindex,bottomindex,nearestItem;
|
||||
RECT rcItem,rcSubItem;
|
||||
DWORD xterm, yterm, dist, mindist;
|
||||
|
||||
TRACE("(lpht->pt=%s, subitem=%d\n", debugpoint(&lpht->pt), subitem);
|
||||
|
||||
nearestItem = -1;
|
||||
mindist = -1;
|
||||
|
||||
/* FIXME: get the visible range */
|
||||
topindex = LISTVIEW_GetTopIndex(infoPtr);
|
||||
if (uView == LVS_REPORT)
|
||||
{
|
||||
bottomindex = topindex + LISTVIEW_GetCountPerColumn(infoPtr) + 1;
|
||||
bottomindex = min(bottomindex,infoPtr->nItemCount);
|
||||
}
|
||||
else
|
||||
{
|
||||
bottomindex = infoPtr->nItemCount;
|
||||
}
|
||||
|
||||
/* FIXME iter */
|
||||
for (i = topindex; i < bottomindex; i++)
|
||||
{
|
||||
rcItem.left = LVIR_BOUNDS;
|
||||
if (LISTVIEW_GetItemRect(infoPtr, i, &rcItem))
|
||||
{
|
||||
if (PtInRect(&rcItem, lpht->pt))
|
||||
{
|
||||
rcSubItem = rcItem;
|
||||
rcItem.left = LVIR_ICON;
|
||||
if (LISTVIEW_GetItemRect(infoPtr, i, &rcItem))
|
||||
{
|
||||
if (PtInRect(&rcItem, lpht->pt))
|
||||
{
|
||||
lpht->flags = LVHT_ONITEMICON;
|
||||
lpht->iItem = i;
|
||||
goto set_subitem;
|
||||
}
|
||||
}
|
||||
|
||||
rcItem.left = LVIR_LABEL;
|
||||
if (LISTVIEW_GetItemRect(infoPtr, i, &rcItem))
|
||||
{
|
||||
if (PtInRect(&rcItem, lpht->pt))
|
||||
{
|
||||
lpht->flags = LVHT_ONITEMLABEL;
|
||||
lpht->iItem = i;
|
||||
goto set_subitem;
|
||||
}
|
||||
}
|
||||
|
||||
lpht->flags = LVHT_ONITEMSTATEICON;
|
||||
lpht->iItem = i;
|
||||
set_subitem:
|
||||
if (subitem)
|
||||
{
|
||||
INT nColumnCount = Header_GetItemCount(infoPtr->hwndHeader);
|
||||
lpht->iSubItem = 0;
|
||||
rcSubItem.right = rcSubItem.left;
|
||||
for (j = 0; j < nColumnCount; j++)
|
||||
{
|
||||
rcSubItem.left = rcSubItem.right;
|
||||
rcSubItem.right += LISTVIEW_GetColumnWidth(infoPtr, j);
|
||||
if (PtInRect(&rcSubItem, lpht->pt))
|
||||
{
|
||||
lpht->iSubItem = j;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
TRACE("hit on item %d\n", i);
|
||||
return i;
|
||||
}
|
||||
else if (bNearItem)
|
||||
{
|
||||
/*
|
||||
* Now compute distance from point to center of boundary
|
||||
* box. Since we are only interested in the relative
|
||||
* distance, we can skip the nasty square root operation
|
||||
*/
|
||||
xterm = rcItem.left + (rcItem.right - rcItem.left)/2 - lpht->pt.x;
|
||||
yterm = rcItem.top + (rcItem.bottom - rcItem.top)/2 - lpht->pt.y;
|
||||
dist = xterm * xterm + yterm * yterm;
|
||||
if (mindist < 0 || dist < mindist)
|
||||
{
|
||||
mindist = dist;
|
||||
nearestItem = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
lpht->flags = LVHT_NOWHERE;
|
||||
|
||||
return bNearItem ? nearestItem : -1;
|
||||
}
|
||||
|
||||
|
||||
/***
|
||||
* DESCRIPTION:
|
||||
* Determines which listview item is located at the specified position.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user