const FSlateBrush* SDetailCategoryTableRow::GetBackgroundImage() const
{
if (IsHovered())
{
return IsItemExpanded() ? FEditorStyle::GetBrush("DetailsView.CategoryTop_Hovered") : FEditorStyle::GetBrush("DetailsView.CollapsedCategory_Hovered");
}
else
{
return IsItemExpanded() ? FEditorStyle::GetBrush("DetailsView.CategoryTop") : FEditorStyle::GetBrush("DetailsView.CollapsedCategory");
}
}
void CDragDropTreeCtrl::OnMouseMove(UINT nFlags, CPoint point)
{
CTreeCtrl::OnMouseMove(nFlags, point);
if (m_bDragging && m_pImageList != NULL)
{
// Stop the scroll timer if it's running.
KillTimer(1);
// Erase the old drag image and draw a new one.
m_pImageList->DragMove(point);
// Highlight the drop target if the cursor is over an item.
HTREEITEM hItem = HighlightDropTarget(point);
// Modify the cursor to provide visual feedback to the user.
// Note: It's important to do this AFTER the call to DragMove.
::SetCursor(hItem == NULL ?
AfxGetApp()->LoadStandardCursor(IDC_NO) :
(HCURSOR) ::GetClassLongPtr(m_hWnd, GCLP_HCURSOR));
// Set a timer if the cursor is at the top or bottom of the window,
// or if it's over a collapsed item.
CRect rect;
GetClientRect(rect);
int cy = rect.Height();
if ((point.y >= 0 && point.y <= m_nScrollMargin) ||
(point.y >= cy - m_nScrollMargin && point.y <= cy) ||
(hItem != NULL && ItemHasChildren(hItem) &&
!IsItemExpanded(hItem)))
SetTimer(1, m_nDelayInterval, NULL);
}
}
EVisibility SDetailCategoryTableRow::IsSeparatorVisible() const
{
return bIsInnerCategory || IsItemExpanded() ? EVisibility::Collapsed : EVisibility::Visible;
}
void CDragDropTreeCtrl::OnTimer(UINT_PTR nIDEvent)
{
CTreeCtrl::OnTimer(nIDEvent);
// Reset the timer.
SetTimer(1, m_nScrollInterval, NULL);
// Get the current cursor position and window height.
DWORD dwPos = ::GetMessagePos();
CPoint point(LOWORD(dwPos), HIWORD(dwPos));
ScreenToClient(&point);
CRect rect;
GetClientRect(rect);
int cy = rect.Height();
// Scroll the window if the cursor is near the top or bottom.
if (point.y >= 0 && point.y <= m_nScrollMargin)
{
HTREEITEM hFirstVisible = GetFirstVisibleItem();
m_pImageList->DragShowNolock(FALSE);
SendMessage(WM_VSCROLL, MAKEWPARAM(SB_LINEUP, 0), NULL);
m_pImageList->DragShowNolock(TRUE);
// Kill the timer if the window did not scroll, or redraw the
// drop target highlight if the window did scroll.
if (GetFirstVisibleItem() == hFirstVisible)
KillTimer(1);
else
{
HighlightDropTarget(point);
return;
}
}
else if (point.y >= cy - m_nScrollMargin && point.y <= cy)
{
HTREEITEM hFirstVisible = GetFirstVisibleItem();
m_pImageList->DragShowNolock(FALSE);
SendMessage(WM_VSCROLL, MAKEWPARAM(SB_LINEDOWN, 0), NULL);
m_pImageList->DragShowNolock(TRUE);
// Kill the timer if the window did not scroll, or redraw the
// drop target highlight if the window did scroll.
if (GetFirstVisibleItem() == hFirstVisible)
KillTimer(1);
else
{
HighlightDropTarget(point);
return;
}
}
// If the cursor is hovering over a collapsed item, expand the tree.
UINT nFlags;
HTREEITEM hItem = HitTest(point, &nFlags);
if (hItem != NULL && ItemHasChildren(hItem) && !IsItemExpanded(hItem))
{
m_pImageList->DragShowNolock(FALSE);
Expand(hItem, TVE_EXPAND);
m_pImageList->DragShowNolock(TRUE);
KillTimer(1);
return;
}
}
BOOL CTreePropSheetBase::PreTranslateMessage(MSG* pMsg)
{
if( pMsg->hwnd == GetPageTreeControl()->GetSafeHwnd() )
{
// If not in skipping empty page mode, keep the standard behavior.
if( !m_bSkipEmptyPages )
return CPropertySheet::PreTranslateMessage(pMsg);
if( pMsg->message == WM_KEYDOWN )
{
// Get the current tree item.
HTREEITEM hCurrentItem = m_pwndPageTree->GetSelectedItem();
if( NULL == hCurrentItem )
return TRUE;
if( pMsg->wParam == VK_UP )
{
// Active the previous page according to tree ordering -
// skipping empty pages on the way.
ActivatePreviousPage( hCurrentItem );
return TRUE;
}
else if ( pMsg->wParam == VK_DOWN )
{
// Active the next page according to tree ordering -
// skipping empty pages on the way.
ActivateNextPage( hCurrentItem );
return TRUE;
}
else if( pMsg->wParam == VK_LEFT )
{
/* Here, we try to mimic the tree keyboard handling by doing
one of the two things:the following
- If the tree item is expanded, collapse it
- If the tree item is collapse, find a parent item that has a page
associated with it and select it, collapsing all items along the
way. */
if( IsItemExpanded( hCurrentItem ) )
{
// Collapse the item since it is expanded.
m_pwndPageTree->Expand( hCurrentItem, TVE_COLLAPSE );
}
else
{
// Already collapsed, search for a candidate for selection.
HTREEITEM hItem = m_pwndPageTree->GetParentItem( hCurrentItem );
while( NULL != hItem && !HasValidPropertyPageAssociated( hItem ) )
{
// Add item to the stack.
hItem = m_pwndPageTree->GetParentItem( hItem );
}
// If the item points to a valid page, select it and collapse
if( NULL != hItem && HasValidPropertyPageAssociated( hItem ) )
{
m_pwndPageTree->SelectItem( hItem );
}
}
return TRUE;
}
else if( pMsg->wParam == VK_RIGHT )
{
/* Here, we try to mimic the tree keyboard handling by doing
one of the two things:the following
- If the tree item is collapsed, expand it
- If the tree item is expanded, find a child item that has a page
associated with it and select it, expanding all items along the
way. The child has to be a first child in the hierarchy. */
if( IsItemExpanded( hCurrentItem ) )
{
// Already expanded, search for a candidate for selection.
HTREEITEM hItem = m_pwndPageTree->GetChildItem( hCurrentItem );
while( NULL != hItem && !HasValidPropertyPageAssociated( hItem ) )
{
// Add item to the stack.
hItem = m_pwndPageTree->GetChildItem( hItem );
}
// If the item points to a valid page, select it and collapse
if( NULL != hItem && HasValidPropertyPageAssociated( hItem ) )
{
m_pwndPageTree->SelectItem( hItem );
}
}
else
{
// Expand the item since it is collapsed.
m_pwndPageTree->Expand( hCurrentItem, TVE_EXPAND );
}
return TRUE;
}
}
}
else if( WM_ENABLE == pMsg->message)
{
// Handle WM_ENABLE messages for property pages: Update the property page
// information map.
TRACE("");
}
return CPropertySheet::PreTranslateMessage(pMsg);
}
