// 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;
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,
+// deselects all the other ones
+//
+// returns true if the selection changed at all or false if nothing changed
+
+// flags for SelectRange()
+enum
+{
+ SR_SIMULATE = 1, // don't do anything, just return true or false
+ SR_UNSELECT_OTHERS = 2 // deselect the items not in range
+};
+
+static bool SelectRange(HWND hwndTV,
HTREEITEM htFirst,
HTREEITEM htLast,
- bool unselectOthers = true)
+ int flags)
{
// find the first (or last) item and select it
+ bool changed = false;
bool cont = true;
HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV);
+
while ( htItem && cont )
{
if ( (htItem == htFirst) || (htItem == htLast) )
{
if ( !IsItemSelected(hwndTV, htItem) )
{
- SelectItem(hwndTV, htItem);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ SelectItem(hwndTV, htItem);
+ }
+
+ changed = true;
}
cont = false;
}
- else
+ else // not first or last
{
- if ( unselectOthers && IsItemSelected(hwndTV, htItem) )
+ if ( flags & SR_UNSELECT_OTHERS )
{
- UnselectItem(hwndTV, htItem);
+ if ( IsItemSelected(hwndTV, htItem) )
+ {
+ if ( !(flags & SR_SIMULATE) )
+ UnselectItem(hwndTV, htItem);
+
+ changed = true;
+ }
}
}
{
if ( !IsItemSelected(hwndTV, htItem) )
{
- SelectItem(hwndTV, htItem);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ SelectItem(hwndTV, htItem);
+ }
+
+ changed = true;
}
cont = (htItem != htFirst) && (htItem != htLast);
htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
}
- // unselect the rest
- if ( unselectOthers )
+ // optionally deselect the rest
+ if ( flags & SR_UNSELECT_OTHERS )
{
while ( htItem )
{
if ( IsItemSelected(hwndTV, htItem) )
{
- UnselectItem(hwndTV, htItem);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ UnselectItem(hwndTV, htItem);
+ }
+
+ changed = true;
}
htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
// seems to be necessary - otherwise the just selected items don't always
// appear as selected
- UpdateWindow(hwndTV);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ UpdateWindow(hwndTV);
+ }
+
+ return changed;
}
// helper function which tricks the standard control into changing the focused
m_dragImage = NULL;
#endif
m_pVirtualRoot = NULL;
+ m_dragStarted = false;
+ m_focusLost = true;
+ m_triggerStateImageClick = false;
// initialize the global array of events now as it can't be done statically
// with the wxEVT_XXX values being allocated during run-time only
DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle);
wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS;
- if ((m_windowStyle & wxTR_NO_LINES) == 0)
+ if ( !(m_windowStyle & wxTR_NO_LINES) )
wstyle |= TVS_HASLINES;
if ( m_windowStyle & wxTR_HAS_BUTTONS )
wstyle |= TVS_HASBUTTONS;
return (wxTreeItemParam *)tvItem.lParam;
}
+bool wxTreeCtrl::HandleTreeEvent(wxTreeEvent& event) const
+{
+ if ( event.m_item.IsOk() )
+ {
+ event.SetClientObject(GetItemData(event.m_item));
+ }
+
+ return HandleWindowEvent(event);
+}
+
wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
{
wxTreeItemParam *data = GetItemParam(item);
wxTreeItemId wxTreeCtrl::GetSelection() const
{
- wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), wxTreeItemId(),
+ wxCHECK_MSG( !HasFlag(wxTR_MULTIPLE), wxTreeItemId(),
wxT("this only works with single selection controls") );
return wxTreeItemId(TreeView_GetSelection(GetHwnd()));
// tree ctrl will eventually crash after item deletion
TreeItemUnlocker unlock_all;
- if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ bool selected = IsSelected(item);
+ wxTreeItemId next;
+
+ if ( selected )
+ {
+ next = TreeView_GetNextVisible(GetHwnd(), HITEM(item));
+
+ if ( !next.IsOk() )
+ {
+ next = TreeView_GetPrevVisible(GetHwnd(), HITEM(item));
+ }
+ }
+
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ return;
+ }
+
+ if ( !selected )
+ {
+ return;
+ }
+
+ if ( next.IsOk() )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ else
+ {
+ ::SelectItem(GetHwnd(), HITEM(next), false);
+ TreeView_SelectItem(GetHwnd(), 0);
+ }
+ }
+ }
+ else
{
- wxLogLastError(wxT("TreeView_DeleteItem"));
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ }
}
}
size_t nCount = children.Count();
for ( size_t n = 0; n < nCount; n++ )
{
- if ( !TreeView_DeleteItem(GetHwnd(), HITEM(children[n])) )
- {
- wxLogLastError(wxT("TreeView_DeleteItem"));
- }
+ Delete(children[n]);
}
}
tvItem.state = 0;
DoSetItem(&tvItem);
- if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
+ if ( IsExpanded(item) )
+ {
+ wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSING,
+ this, wxTreeItemId(item));
+
+ if ( !IsTreeEventAllowed(event) )
+ return;
+ }
+
+ if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) )
{
- // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
- // itself
- wxTreeEvent event(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
- : IDX_COLLAPSE]
- [IDX_DONE],
- this, item);
- (void)HandleWindowEvent(event);
+ if ( IsExpanded(item) )
+ return;
+
+ wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSED, this, item);
+ (void)HandleTreeEvent(event);
}
//else: change didn't took place, so do nothing at all
}
void wxTreeCtrl::Unselect()
{
- wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE),
+ wxASSERT_MSG( !HasFlag(wxTR_MULTIPLE),
wxT("doesn't make sense, may be you want UnselectAll()?") );
- // just remove the selection
- SelectItem(wxTreeItemId());
+ // the current focus
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ if ( !htFocus )
+ {
+ return;
+ }
+
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, wxTreeItemId());
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ TreeView_SelectItem(GetHwnd(), 0);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, wxTreeItemId());
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ TreeView_SelectItem(GetHwnd(), 0);
+ }
+}
+
+void wxTreeCtrl::DoUnselectAll()
+{
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ for ( size_t n = 0; n < count; n++ )
+ {
+ ::UnselectItem(GetHwnd(), HITEM(selections[n]));
+ }
+
+ m_htSelStart.Unset();
}
void wxTreeCtrl::UnselectAll()
{
- if ( m_windowStyle & wxTR_MULTIPLE )
+ if ( HasFlag(wxTR_MULTIPLE) )
{
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
- for ( size_t n = 0; n < count; n++ )
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( !htFocus ) return;
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this);
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- ::UnselectItem(GetHwnd(), HITEM(selections[n]));
- }
+ DoUnselectAll();
+ TreeView_SelectItem(GetHwnd(), 0);
- m_htSelStart.Unset();
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this);
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
+ }
}
else
{
- // just remove the selection
Unselect();
}
}
{
wxCHECK_RET( !IsHiddenRoot(item), _T("can't select hidden root item") );
- wxASSERT_MSG( select || HasFlag(wxTR_MULTIPLE),
- _T("SelectItem(false) works only for multiselect") );
+ if ( IsSelected(item) == select )
+ {
+ return;
+ }
- wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
- if ( !HandleWindowEvent(event) || event.IsAllowed() )
+ if ( HasFlag(wxTR_MULTIPLE) )
{
- if ( HasFlag(wxTR_MULTIPLE) )
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- if ( !::SelectItem(GetHwnd(), HITEM(item), select) )
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ ::SelectItem(GetHwnd(), HITEM(item), select);
+
+ if ( !htFocus )
{
- wxLogLastError(wxT("TreeView_SelectItem"));
- return;
+ ::SetFocus(GetHwnd(), HITEM(item));
}
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, item);
+ (void)HandleTreeEvent(changedEvent);
}
- else // single selection
+ }
+ else
+ {
+ wxASSERT_MSG( select,
+ _T("SelectItem(false) works only for multiselect") );
+
+ // in spite of the docs (MSDN Jan 99 edition), we don't seem to receive
+ // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
+ // send them ourselves
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- // use TreeView_SelectItem() to deselect the previous selection
if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )
{
wxLogLastError(wxT("TreeView_SelectItem"));
- return;
}
- }
+ else // ok
+ {
+ ::SetFocus(GetHwnd(), HITEM(item));
- event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
- (void)HandleWindowEvent(event);
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, item);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ //else: program vetoed the change
}
- //else: program vetoed the change
}
void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
return true;
}
+bool wxTreeCtrl::MSWHandleSelectionKey(WPARAM vkey)
+{
+ const bool bCtrl = wxIsCtrlDown();
+ const bool bShift = wxIsShiftDown();
+ const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ switch ( vkey )
+ {
+ case VK_RETURN:
+ case VK_SPACE:
+ if ( !htSel )
+ break;
+
+ if ( vkey != VK_RETURN && bCtrl )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htSel);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ ::ToggleItemSelection(GetHwnd(), htSel);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htSel);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count != 1 || HITEM(selections[0]) != htSel )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htSel);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), htSel);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htSel);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_UP:
+ case VK_DOWN:
+ if ( !bCtrl && !bShift )
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ wxTreeItemId next;
+
+ if ( htSel && count > 0 )
+ {
+ next = vkey == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel);
+ }
+ else
+ {
+ next = GetRootItem();
+
+ if ( IsHiddenRoot(next) )
+ next = TreeView_GetChild(GetHwnd(), HITEM(next));
+
+ if ( vkey == VK_DOWN )
+ {
+ wxTreeItemId next2 = TreeView_GetNextVisible(
+ GetHwnd(), HITEM(next));
+ if ( next2 )
+ next = next2;
+ }
+ }
+
+ if ( !next.IsOk() )
+ {
+ break;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), HITEM(next));
+ ::SetFocus(GetHwnd(), HITEM(next));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else if ( htSel )
+ {
+ wxTreeItemId next = vkey == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel);
+
+ if ( !next.IsOk() )
+ {
+ break;
+ }
+
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( bShift && SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS | SR_SIMULATE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+
+ ::SetFocus(GetHwnd(), HITEM(next));
+ }
+ break;
+
+ case VK_LEFT:
+ if ( HasChildren(htSel) && IsExpanded(htSel) )
+ {
+ Collapse(htSel);
+ }
+ else
+ {
+ wxTreeItemId next = GetItemParent(htSel);
+
+ if ( next.IsOk() && !IsHiddenRoot(next) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), HITEM(next));
+ ::SetFocus(GetHwnd(), HITEM(next));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_RIGHT:
+ if ( !IsVisible(htSel) )
+ {
+ EnsureVisible(htSel);
+ }
+
+ if ( !HasChildren(htSel) )
+ break;
+
+ if ( !IsExpanded(htSel) )
+ {
+ Expand(htSel);
+ }
+ else
+ {
+ wxTreeItemId next = TreeView_GetChild(GetHwnd(), htSel);
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), HITEM(next));
+ ::SetFocus(GetHwnd(), HITEM(next));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ break;
+
+ case VK_HOME:
+ case VK_END:
+ {
+ wxTreeItemId next = GetRootItem();
+
+ if ( IsHiddenRoot(next) )
+ {
+ next = TreeView_GetChild(GetHwnd(), HITEM(next));
+ }
+
+ if ( !next.IsOk() )
+ break;
+
+ if ( vkey == VK_END )
+ {
+ for ( ;; )
+ {
+ wxTreeItemId nextTemp = TreeView_GetNextVisible(
+ GetHwnd(), HITEM(next));
+
+ if ( !nextTemp.IsOk() )
+ break;
+
+ next = nextTemp;
+ }
+ }
+
+ if ( htSel == HITEM(next) )
+ break;
+
+ if ( bShift )
+ {
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( SelectRange(GetHwnd(),
+ HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS | SR_SIMULATE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ SelectRange(GetHwnd(),
+ HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS);
+ ::SetFocus(GetHwnd(), HITEM(next));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ else // no Shift
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), HITEM(next));
+ ::SetFocus(GetHwnd(), HITEM(next));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_PRIOR:
+ case VK_NEXT:
+ if ( bCtrl )
+ {
+ wxTreeItemId firstVisible = GetFirstVisibleItem();
+ size_t visibleCount = TreeView_GetVisibleCount(GetHwnd());
+ wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(firstVisible)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(firstVisible));
+
+ if ( !nextAdjacent )
+ {
+ break;
+ }
+
+ wxTreeItemId nextStart = firstVisible;
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(nextStart)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(nextStart));
+
+ if ( nextTemp.IsOk() )
+ {
+ nextStart = nextTemp;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ EnsureVisible(nextStart);
+
+ if ( vkey == VK_NEXT )
+ {
+ wxTreeItemId nextEnd = nextStart;
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp =
+ TreeView_GetNextVisible(GetHwnd(), HITEM(nextEnd));
+
+ if ( nextTemp.IsOk() )
+ {
+ nextEnd = nextTemp;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ EnsureVisible(nextEnd);
+ }
+ }
+ else // no Ctrl
+ {
+ size_t visibleCount = TreeView_GetVisibleCount(GetHwnd());
+ wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), htSel) :
+ TreeView_GetNextVisible(GetHwnd(), htSel);
+
+ if ( !nextAdjacent )
+ {
+ break;
+ }
+
+ wxTreeItemId next(htSel);
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp = vkey == VK_PRIOR ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(next)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(next));
+
+ if ( !nextTemp.IsOk() )
+ break;
+
+ next = nextTemp;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ m_htSelStart.Unset();
+ ::SelectItem(GetHwnd(), HITEM(next));
+ ::SetFocus(GetHwnd(), HITEM(next));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ break;
+
+ default:
+ return false;
+ }
+
+ return true;
+}
+
// we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we
// only do it during dragging, minimize wxWin overhead (this is important for
// WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
// instead of passing by wxWin events
-WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+WXLRESULT
+wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
bool processed = false;
WXLRESULT rc = 0;
bool isMultiple = HasFlag(wxTR_MULTIPLE);
- // This message is sent after a right-click, or when the "menu" key is pressed
if ( nMsg == WM_CONTEXTMENU )
{
int x = GET_X_LPARAM(lParam),
TV_HITTESTINFO tvhti;
tvhti.pt.x = pt.x;
tvhti.pt.y = pt.y;
+
if ( TreeView_HitTest(GetHwnd(), &tvhti) )
item = wxTreeItemId(tvhti.hItem);
}
event.m_pointDrag = pt;
- if ( HandleWindowEvent(event) )
+ if ( HandleTreeEvent(event) )
processed = true;
//else: continue with generating wxEVT_CONTEXT_MENU in base class code
}
tvht.pt.x = x;
tvht.pt.y = y;
+ HTREEITEM htOldItem = TreeView_GetSelection(GetHwnd());
HTREEITEM htItem = TreeView_HitTest(GetHwnd(), &tvht);
switch ( nMsg )
{
case WM_LBUTTONDOWN:
- if ( htItem && isMultiple && (tvht.flags & TVHT_ONITEM) != 0 )
+ if ( !isMultiple )
+ break;
+
+ processed = true;
+ m_htClickedItem.Unset();
+
+ if ( !(tvht.flags & TVHT_ONITEM) )
{
- m_htClickedItem = (WXHTREEITEM) htItem;
- m_ptClick = wxPoint(x, y);
+ if ( !HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ if ( tvht.flags & TVHT_ONITEMBUTTON )
+ {
+ if ( !IsExpanded(htItem) )
+ {
+ Expand(htItem);
+ }
+ else
+ {
+ Collapse(htItem);
+ }
+ }
+ }
+
+ break;
+ }
+
+ SetFocus();
+ m_htClickedItem = (WXHTREEITEM) htItem;
+ m_ptClick = wxPoint(x, y);
- if ( wParam & MK_CONTROL )
+ if ( wParam & MK_CONTROL )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
{
- SetFocus();
+ m_htClickedItem.Unset();
+ break;
+ }
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
// toggle selected state
- ToggleItemSelection(htItem);
+ ::ToggleItemSelection(GetHwnd(), htItem);
::SetFocus(GetHwnd(), htItem);
// reset on any click without Shift
m_htSelStart.Unset();
- processed = true;
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
}
- else if ( wParam & MK_SHIFT )
+ }
+ else if ( wParam & MK_SHIFT )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
{
- // this selects all items between the starting one and
- // the current
-
- if ( !m_htSelStart )
- {
- // take the focused item
- m_htSelStart = TreeView_GetSelection(GetHwnd());
- }
+ m_htClickedItem.Unset();
+ break;
+ }
- if ( m_htSelStart )
- SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
- !(wParam & MK_CONTROL));
- else
- ::SelectItem(GetHwnd(), htItem);
+ int srFlags = 0;
+ bool willChange = true;
- ::SetFocus(GetHwnd(), htItem);
+ if ( !(wParam & MK_CONTROL) )
+ {
+ srFlags |= SR_UNSELECT_OTHERS;
+ }
- processed = true;
+ if ( !m_htSelStart )
+ {
+ // take the focused item
+ m_htSelStart = htOldItem;
}
- else // normal click
+ else
{
- // avoid doing anything if we click on the only
- // currently selected item
+ willChange = SelectRange(GetHwnd(), HITEM(m_htSelStart),
+ htItem, srFlags | SR_SIMULATE);
+ }
- SetFocus();
+ if ( willChange )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
- if ( count == 0 ||
- count > 1 ||
- HITEM(selections[0]) != htItem )
+ if ( IsTreeEventAllowed(changingEvent) )
{
- // clear the previously selected items, if the
- // user clicked outside of the present selection.
- // otherwise, perform the deselection on mouse-up.
- // this allows multiple drag and drop to work.
-
- if (!IsItemSelected(GetHwnd(), htItem))
+ // this selects all items between the starting one
+ // and the current
+ if ( m_htSelStart )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart),
+ htItem, srFlags);
+ }
+ else
{
- UnselectAll();
+ ::SelectItem(GetHwnd(), htItem);
+ }
+
+ ::SetFocus(GetHwnd(), htItem);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ else // normal click
+ {
+ // avoid doing anything if we click on the only
+ // currently selected item
- // prevent the click from starting in-place editing
- // which should only happen if we click on the
- // already selected item (and nothing else is
- // selected)
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count == 0 ||
+ count > 1 ||
+ HITEM(selections[0]) != htItem )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ m_htClickedItem.Unset();
+ break;
+ }
+
+ // clear the previously selected items, if the user
+ // clicked outside of the present selection, otherwise,
+ // perform the deselection on mouse-up, this allows
+ // multiple drag and drop to work.
- TreeView_SelectItem(GetHwnd(), 0);
+ if ( !IsItemSelected(GetHwnd(), htItem))
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
::SelectItem(GetHwnd(), htItem);
+ ::SetFocus(GetHwnd(), htItem);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
}
+ }
+ else
+ {
::SetFocus(GetHwnd(), htItem);
- processed = true;
}
- else // click on a single selected item
+ }
+ else // click on a single selected item
+ {
+ // don't interfere with the default processing in
+ // WM_MOUSEMOVE handler below as the default window
+ // proc will start the drag itself if we let have
+ // WM_LBUTTONDOWN
+ m_htClickedItem.Unset();
+
+ // prevent in-place editing from starting if focus lost
+ // since previous click
+ if ( m_focusLost )
{
- // don't interfere with the default processing in
- // WM_MOUSEMOVE handler below as the default window
- // proc will start the drag itself if we let have
- // WM_LBUTTONDOWN
- m_htClickedItem.Unset();
+ TreeView_SelectItem(GetHwnd(), 0);
+ ::SelectItem(GetHwnd(), htItem);
}
- // reset on any click without Shift
- m_htSelStart.Unset();
+ processed = false;
+ }
+
+ // reset on any click without Shift
+ m_htSelStart.Unset();
+ }
+
+ m_focusLost = false;
+
+ // we consumed the event so we need to trigger state image
+ // click if needed
+ if ( processed )
+ {
+ int htFlags = 0;
+ wxTreeItemId item = HitTest(wxPoint(x, y), htFlags);
+
+ if ( htFlags & wxTREE_HITTEST_ONITEMSTATEICON )
+ {
+ m_triggerStateImageClick = true;
}
}
break;
case WM_RBUTTONDOWN:
+ if ( !isMultiple )
+ break;
+
+ processed = true;
+ SetFocus();
+
+ if ( HandleMouseEvent(nMsg, x, y, wParam) || !htItem )
+ {
+ break;
+ }
+
// default handler removes the highlight from the currently
// focused item when right mouse button is pressed on another
// one but keeps the remaining items highlighted, which is
- // confusing, so override this default behaviour for tree with
- // multiple selections
- if ( isMultiple )
+ // confusing, so override this default behaviour
+ if ( !IsItemSelected(GetHwnd(), htItem) )
{
- if ( !IsItemSelected(GetHwnd(), htItem) )
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- UnselectAll();
- SelectItem(htItem);
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), htItem);
::SetFocus(GetHwnd(), htItem);
- }
-
- // fire EVT_RIGHT_DOWN
- HandleMouseEvent(nMsg, x, y, wParam);
-
- // send NM_RCLICK
- NMHDR nmhdr;
- nmhdr.hwndFrom = GetHwnd();
- nmhdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
- nmhdr.code = NM_RCLICK;
- ::SendMessage(::GetParent(GetHwnd()), WM_NOTIFY,
- nmhdr.idFrom, (LPARAM)&nmhdr);
- // prevent tree control default processing, as we've
- // already done everything
- processed = true;
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
}
+
break;
case WM_MOUSEMOVE:
break;
case WM_LBUTTONUP:
-
- // facilitates multiple drag-and-drop
- if (htItem && isMultiple)
+ if ( isMultiple )
{
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
-
- if (count > 1 &&
- !(wParam & MK_CONTROL) &&
- !(wParam & MK_SHIFT))
+ // deselect other items if multiple items selected
+ if ( htItem )
{
- UnselectAll();
- TreeView_SelectItem(GetHwnd(), htItem);
- ::SelectItem(GetHwnd(), htItem);
- ::SetFocus(GetHwnd(), htItem);
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count > 1 &&
+ !(wParam & MK_CONTROL) &&
+ !(wParam & MK_SHIFT) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ ::SelectItem(GetHwnd(), htItem);
+ ::SetFocus(GetHwnd(), htItem);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
}
+
m_htClickedItem.Unset();
+
+ if ( m_triggerStateImageClick )
+ {
+ if ( tvht.flags & TVHT_ONITEMSTATEICON )
+ {
+ wxTreeEvent event(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK,
+ this, htItem);
+ (void)HandleTreeEvent(event);
+
+ m_triggerStateImageClick = false;
+ processed = true;
+ }
+ }
+
+ if ( !m_dragStarted &&
+ (tvht.flags & TVHT_ONITEMSTATEICON ||
+ tvht.flags & TVHT_ONITEMICON ||
+ tvht.flags & TVHT_ONITEM) )
+ {
+ processed = true;
+ }
}
// fall through
m_dragImage = NULL;
// generate the drag end event
- wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, this, htItem);
+ wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG,
+ this, htItem);
event.m_pointDrag = wxPoint(x, y);
-
- (void)HandleWindowEvent(event);
+ (void)HandleTreeEvent(event);
// if we don't do it, the tree seems to think that 2 items
// are selected simultaneously which is quite weird
TreeView_SelectDropTarget(GetHwnd(), 0);
}
#endif // wxUSE_DRAGIMAGE
+
+ if ( isMultiple && nMsg == WM_RBUTTONUP )
+ {
+ // send NM_RCLICK
+ NMHDR nmhdr;
+ nmhdr.hwndFrom = GetHwnd();
+ nmhdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+ nmhdr.code = NM_RCLICK;
+ ::SendMessage(::GetParent(GetHwnd()), WM_NOTIFY,
+ nmhdr.idFrom, (LPARAM)&nmhdr);
+ processed = true;
+ }
+
+ m_dragStarted = false;
+
break;
}
}
- else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
+ else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) )
{
- // the tree control greys out the selected item when it loses focus and
- // paints it as selected again when it regains it, but it won't do it
- // for the other items itself - help it
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
- RECT rect;
- for ( size_t n = 0; n < count; n++ )
+ if ( isMultiple )
{
- // TreeView_GetItemRect() will return false if item is not visible,
- // which may happen perfectly well
- if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
- &rect, TRUE) )
+ // the tree control greys out the selected item when it loses focus
+ // and paints it as selected again when it regains it, but it won't
+ // do it for the other items itself - help it
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ RECT rect;
+
+ for ( size_t n = 0; n < count; n++ )
{
- ::InvalidateRect(GetHwnd(), &rect, FALSE);
+ // TreeView_GetItemRect() will return false if item is not
+ // visible, which may happen perfectly well
+ if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
+ &rect, TRUE) )
+ {
+ ::InvalidateRect(GetHwnd(), &rect, FALSE);
+ }
}
}
- }
- else if ( nMsg == WM_KEYDOWN && isMultiple )
- {
- bool bCtrl = wxIsCtrlDown(),
- bShift = wxIsShiftDown();
- HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
- switch ( wParam )
+ if ( nMsg == WM_KILLFOCUS )
{
- case VK_SPACE:
- if ( bCtrl )
- {
- ToggleItemSelection(htSel);
- }
- else
- {
- UnselectAll();
-
- ::SelectItem(GetHwnd(), htSel);
- }
-
- processed = true;
- break;
-
- case VK_UP:
- case VK_DOWN:
- if ( !bCtrl && !bShift )
- {
- // no modifiers, just clear selection and then let the default
- // processing to take place
- UnselectAll();
- }
- else if ( htSel )
- {
- (void)wxControl::MSWWindowProc(nMsg, wParam, lParam);
-
- HTREEITEM htNext = (HTREEITEM)
- TreeView_GetNextItem
- (
- GetHwnd(),
- htSel,
- wParam == VK_UP ? TVGN_PREVIOUSVISIBLE
- : TVGN_NEXTVISIBLE
- );
+ m_focusLost = true;
+ }
+ }
+ else if ( (nMsg == WM_KEYDOWN || nMsg == WM_SYSKEYDOWN) && isMultiple )
+ {
+ wxTreeEvent keyEvent(wxEVT_COMMAND_TREE_KEY_DOWN, this);
- if ( !htNext )
- {
- // at the top/bottom
- htNext = htSel;
- }
+ int keyCode = wxCharCodeMSWToWX(wParam);
- if ( bShift )
- {
- if ( !m_htSelStart )
- m_htSelStart = htSel;
-
- SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
- }
- else // bCtrl
- {
- // without changing selection
- ::SetFocus(GetHwnd(), htNext);
- }
+ if ( !keyCode )
+ {
+ // wxCharCodeMSWToWX() returns 0 to indicate that this is a
+ // simple ASCII key
+ keyCode = wParam;
+ }
- processed = true;
- }
- break;
+ keyEvent.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, keyCode,
+ lParam, wParam);
- case VK_HOME:
- case VK_END:
- case VK_PRIOR:
- case VK_NEXT:
- // TODO: handle Shift/Ctrl with these keys
- if ( !bCtrl && !bShift )
- {
- UnselectAll();
+ processed = HandleTreeEvent(keyEvent);
+ if ( !processed )
+ {
+ // update the selection if key was left unprocessed
+ processed = MSWHandleSelectionKey(wParam);
+ }
- m_htSelStart.Unset();
- }
+ // generate a separate event for Space/Return
+ if ( !wxIsCtrlDown() && !wxIsShiftDown() && !wxIsAltDown() &&
+ ((wParam == VK_SPACE) || (wParam == VK_RETURN)) )
+ {
+ const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( htSel )
+ {
+ wxTreeEvent activatedEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+ this, htSel);
+ (void)HandleTreeEvent(activatedEvent);
+ }
}
}
else if ( nMsg == WM_COMMAND )
case TVN_KEYDOWN:
{
- eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
// fabricate the lParam and wParam parameters sufficiently
// similar to the ones from a "real" WM_KEYDOWN so that
// CreateKeyEvent() works correctly
- WXLPARAM lParam = (wxIsAltDown() ? KF_ALTDOWN : 0) << 16;
+ const bool isAltDown = ::GetKeyState(VK_MENU) < 0;
+ WXLPARAM lParam = (isAltDown ? KF_ALTDOWN : 0) << 16;
WXWPARAM wParam = info->wVKey;
keyCode = wParam;
}
- event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
+ wxTreeEvent keyEvent(wxEVT_COMMAND_TREE_KEY_DOWN, this);
+ keyEvent.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
keyCode,
lParam,
wParam);
- // a separate event for Space/Return
- if ( !wxIsAnyModifierDown() &&
- ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
+ if ( HandleTreeEvent(keyEvent) )
{
- wxTreeItemId item;
- if ( !HasFlag(wxTR_MULTIPLE) )
- item = GetSelection();
+ return true;
+ }
+
+ wxTreeItemId item = wxTreeItemId(TreeView_GetSelection(GetHwnd()));
- wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
- this, item);
- (void)HandleWindowEvent(event2);
+ // a separate event for Space/Return
+ if ( !wxIsCtrlDown() && !wxIsShiftDown() && !isAltDown &&
+ ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) &&
+ item )
+ {
+ wxTreeEvent activatedEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+ this, item);
+ (void)HandleTreeEvent(activatedEvent);
}
+
+ return false;
}
break;
// we have to handle both messages:
case TVN_SELCHANGEDA:
case TVN_SELCHANGEDW:
- eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
+ if ( !HasFlag(wxTR_MULTIPLE) )
+ {
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
+ }
// fall through
case TVN_SELCHANGINGA:
case TVN_SELCHANGINGW:
+ if ( !HasFlag(wxTR_MULTIPLE) )
{
if ( eventType == wxEVT_NULL )
eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
SetFocus();
break;
- // instead of explicitly checking for _WIN32_IE, check if the
- // required symbols are available in the headers
+ // instead of explicitly checking for _WIN32_IE, check if the
+ // required symbols are available in the headers
#if defined(CDDS_PREPAINT) && !wxUSE_COMCTL32_SAFELY
case NM_CUSTOMDRAW:
{
point.x = LOWORD(pos);
point.y = HIWORD(pos);
::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1);
- int flags = 0;
- wxTreeItemId item = HitTest(wxPoint(point.x, point.y), flags);
- if (flags & wxTREE_HITTEST_ONITEMSTATEICON)
+ int htFlags = 0;
+ wxTreeItemId item = HitTest(wxPoint(point.x, point.y), htFlags);
+
+ if ( htFlags & wxTREE_HITTEST_ONITEMSTATEICON )
{
event.m_item = item;
eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK;
}
+
break;
}
event.SetEventType(eventType);
- if ( event.m_item.IsOk() )
- event.SetClientObject(GetItemData(event.m_item));
-
- bool processed = HandleWindowEvent(event);
+ bool processed = HandleTreeEvent(event);
// post processing
switch ( hdr->code )
m_dragImage = new wxDragImage(*this, event.m_item);
m_dragImage->BeginDrag(wxPoint(0,0), this);
m_dragImage->Show();
+
+ m_dragStarted = true;
}
#endif // wxUSE_DRAGIMAGE
break;
projects / wxWidgets.git / commitdiff
