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When items are inserted in a partially populated treeview, the first

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visible item was not correctly updated.
The first visible item was sometimes used to calculate the location of
other items when it had been freed.
This commit is contained in:
Adam Gundy 2003-05-02 20:15:36 +00:00 committed by Alexandre Julliard
parent 06d610ec9b
commit a982259e3e
1 changed files with 18 additions and 4 deletions
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22
dlls/comctl32/treeview.c
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@ -988,6 +988,16 @@ TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
COMCTL32_Free(item);
if (infoPtr->selectedItem == item)
infoPtr->selectedItem = NULL;
if (infoPtr->hotItem == item)
infoPtr->hotItem = NULL;
if (infoPtr->focusedItem == item)
infoPtr->focusedItem = NULL;
if (infoPtr->firstVisible == item)
infoPtr->firstVisible = NULL;
if (infoPtr->dropItem == item)
infoPtr->dropItem = NULL;
if (infoPtr->insertMarkItem == item)
infoPtr->insertMarkItem = NULL;
}
@ -1216,9 +1226,12 @@ TREEVIEW_InsertItemA(TREEVIEW_INFO *infoPtr, LPARAM lParam)
switch ((DWORD)insertAfter)
{
case (DWORD)TVI_FIRST:
TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
if (infoPtr->firstVisible == parentItem->firstChild)
TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
{
TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
if (infoPtr->firstVisible == originalFirst)
TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
}
break;
case (DWORD)TVI_LAST:
@ -1531,6 +1544,7 @@ TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
newFirstVisible = wineItem->prevSibling;
else if (wineItem->parent != infoPtr->root)
newFirstVisible = wineItem->parent;
TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
}
else
newFirstVisible = infoPtr->firstVisible;
@ -1564,8 +1578,8 @@ TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
if (visible)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}