// get HTREEITEM from wxTreeItemId
#define HITEM(item) ((HTREEITEM)(((item).m_pItem)))
-// the native control doesn't support multiple selections under MSW and we
-// have 2 ways to emulate them: either using TVS_CHECKBOXES style and let
-// checkboxes be the selection status (checked == selected) or by really
-// emulating everything, i.e. intercepting mouse and key events &c. The first
-// approach is much easier but doesn't work with comctl32.dll < 4.71 and also
-// looks quite ugly.
-#define wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE 0
-
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht);
}
-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-
-// wrappers for TreeView_GetItem/TreeView_SetItem
-static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
-{
-
- TV_ITEM tvi;
- tvi.mask = TVIF_STATE | TVIF_HANDLE;
- tvi.stateMask = TVIS_SELECTED;
- tvi.hItem = hItem;
-
- if ( !TreeView_GetItem(hwndTV, &tvi) )
- {
- wxLogLastError(wxT("TreeView_GetItem"));
- }
-
- return (tvi.state & TVIS_SELECTED) != 0;
-}
-
-static bool SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true)
-{
- TV_ITEM tvi;
- tvi.mask = TVIF_STATE | TVIF_HANDLE;
- tvi.stateMask = TVIS_SELECTED;
- tvi.state = select ? TVIS_SELECTED : 0;
- tvi.hItem = hItem;
-
- if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
- {
- wxLogLastError(wxT("TreeView_SetItem"));
- return false;
- }
-
- return true;
-}
-
-static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)
-{
- SelectItem(hwndTV, htItem, false);
-}
-
-static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem)
-{
- SelectItem(hwndTV, htItem, !IsItemSelected(hwndTV, htItem));
-}
-
-// helper function which selects all items in a range and, optionally,
-// unselects all others
-static void SelectRange(HWND hwndTV,
- HTREEITEM htFirst,
- HTREEITEM htLast,
- bool unselectOthers = true)
-{
- // find the first (or last) item and select it
- bool cont = true;
- HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV);
- while ( htItem && cont )
- {
- if ( (htItem == htFirst) || (htItem == htLast) )
- {
- if ( !IsItemSelected(hwndTV, htItem) )
- {
- SelectItem(hwndTV, htItem);
- }
-
- cont = false;
- }
- else
- {
- if ( unselectOthers && IsItemSelected(hwndTV, htItem) )
- {
- UnselectItem(hwndTV, htItem);
- }
- }
-
- htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
- }
-
- // select the items in range
- cont = htFirst != htLast;
- while ( htItem && cont )
- {
- if ( !IsItemSelected(hwndTV, htItem) )
- {
- SelectItem(hwndTV, htItem);
- }
-
- cont = (htItem != htFirst) && (htItem != htLast);
-
- htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
- }
-
- // unselect the rest
- if ( unselectOthers )
- {
- while ( htItem )
- {
- if ( IsItemSelected(hwndTV, htItem) )
- {
- UnselectItem(hwndTV, htItem);
- }
-
- htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
- }
- }
-
- // seems to be necessary - otherwise the just selected items don't always
- // appear as selected
- UpdateWindow(hwndTV);
-}
-
-// helper function which tricks the standard control into changing the focused
-// item without changing anything else (if someone knows why Microsoft doesn't
-// allow to do it by just setting TVIS_FOCUSED flag, please tell me!)
-static void SetFocus(HWND hwndTV, HTREEITEM htItem)
-{
- // the current focus
- HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV);
-
- if ( htItem )
- {
- // set the focus
- if ( htItem != htFocus )
- {
- // remember the selection state of the item
- bool wasSelected = IsItemSelected(hwndTV, htItem);
-
- if ( htFocus && IsItemSelected(hwndTV, htFocus) )
- {
- // prevent the tree from unselecting the old focus which it
- // would do by default (TreeView_SelectItem unselects the
- // focused item)
- TreeView_SelectItem(hwndTV, 0);
- SelectItem(hwndTV, htFocus);
- }
-
- TreeView_SelectItem(hwndTV, htItem);
-
- if ( !wasSelected )
- {
- // need to clear the selection which TreeView_SelectItem() gave
- // us
- UnselectItem(hwndTV, htItem);
- }
- //else: was selected, still selected - ok
- }
- //else: nothing to do, focus already there
- }
- else
- {
- if ( htFocus )
- {
- bool wasFocusSelected = IsItemSelected(hwndTV, htFocus);
-
- // just clear the focus
- TreeView_SelectItem(hwndTV, 0);
-
- if ( wasFocusSelected )
- {
- // restore the selection state
- SelectItem(hwndTV, htFocus);
- }
- }
- //else: nothing to do, no focus already
- }
-}
-
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
return true;
}
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
- if ( tree->IsItemChecked(item) )
-#else
if ( ::IsItemSelected(GetHwndOf(tree), HITEM(item)) )
-#endif
{
m_selections.Add(item);
}
wstyle |= TVS_FULLROWSELECT;
}
- // using TVS_CHECKBOXES for emulation of a multiselection tree control
- // doesn't work without the new enough headers
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE && \
- !defined( __GNUWIN32_OLD__ ) && \
- !defined( __BORLANDC__ ) && \
- !defined( __WATCOMC__ ) && \
- (!defined(__VISUALC__) || (__VISUALC__ > 1010))
-
- // we emulate the multiple selection tree controls by using checkboxes: set
- // up the image list we need for this if we do have multiple selections
- if ( m_windowStyle & wxTR_MULTIPLE )
- wstyle |= TVS_CHECKBOXES;
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-
#if !defined(__WXWINCE__) && defined(TVS_INFOTIP)
// Need so that TVN_GETINFOTIP messages will be sent
wstyle |= TVS_INFOTIP;
size_t count = GetSelections(selections);
for ( size_t n = 0; n < count; n++ )
{
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
- SetItemCheck(HITEM(selections[n]), false);
-#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
::UnselectItem(GetHwnd(), HITEM(selections[n]));
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
}
m_htSelStart.Unset();
}
- else
+ else // single selection
{
// just remove the selection
Unselect();
{
if ( m_windowStyle & wxTR_MULTIPLE )
{
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
- // selecting the item means checking it
- SetItemCheck(item, select);
-#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
::SelectItem(GetHwnd(), HITEM(item), select);
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
}
- else
+ else // single selection
{
wxASSERT_MSG( select,
_T("SelectItem(false) works only for multiselect") );
::SetFocus(GetHwnd(), htItem);
break;
-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
case WM_LBUTTONDOWN:
if ( htItem && isMultiple && (tvht.flags & TVHT_ONITEM) != 0 )
{
}
}
break;
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
case WM_MOUSEMOVE:
#ifndef __WXWINCE__
break;
}
}
-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
{
// the tree control greys out the selected item when it loses focus and
}
}
}
-#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
else if ( nMsg == WM_COMMAND )
{
// if we receive a EN_KILLFOCUS command from the in-place edit control
projects / wxWidgets.git / commitdiff
