X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/27f8357f3ceb709c4ea8653818e4f1a79f8f59fe..d94de683a60b20153591cc3f8f52a97cf9ce9453:/src/generic/treectlg.cpp diff --git a/src/generic/treectlg.cpp b/src/generic/treectlg.cpp index 0c37bbbc46..800e58ad60 100644 --- a/src/generic/treectlg.cpp +++ b/src/generic/treectlg.cpp @@ -49,7 +49,7 @@ // array types // ----------------------------------------------------------------------------- -class WXDLLEXPORT wxGenericTreeItem; +class WXDLLIMPEXP_FWD_CORE wxGenericTreeItem; WX_DEFINE_EXPORTED_ARRAY_PTR(wxGenericTreeItem *, wxArrayGenericTreeItems); @@ -548,7 +548,7 @@ wxGenericTreeItem::~wxGenericTreeItem() void wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl *tree) { - size_t count = m_children.Count(); + size_t count = m_children.GetCount(); for ( size_t n = 0; n < count; n++ ) { wxGenericTreeItem *child = m_children[n]; @@ -570,7 +570,7 @@ void wxGenericTreeItem::SetText( const wxString &text ) size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const { - size_t count = m_children.Count(); + size_t count = m_children.GetCount(); if ( !recursively ) return count; @@ -593,7 +593,7 @@ void wxGenericTreeItem::GetSize( int &x, int &y, if (IsExpanded()) { - size_t count = m_children.Count(); + size_t count = m_children.GetCount(); for ( size_t n = 0; n < count; ++n ) { m_children[n]->GetSize( x, y, theButton ); @@ -668,7 +668,7 @@ wxGenericTreeItem *wxGenericTreeItem::HitTest(const wxPoint& point, } // evaluate children - size_t count = m_children.Count(); + size_t count = m_children.GetCount(); for ( size_t n = 0; n < count; n++ ) { wxGenericTreeItem *res = m_children[n]->HitTest( point, @@ -720,6 +720,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxGenericTreeCtrl, wxControl) BEGIN_EVENT_TABLE(wxGenericTreeCtrl, wxTreeCtrlBase) EVT_PAINT (wxGenericTreeCtrl::OnPaint) + EVT_SIZE (wxGenericTreeCtrl::OnSize) EVT_MOUSE_EVENTS (wxGenericTreeCtrl::OnMouse) EVT_CHAR (wxGenericTreeCtrl::OnChar) EVT_SET_FOCUS (wxGenericTreeCtrl::OnSetFocus) @@ -819,7 +820,14 @@ bool wxGenericTreeCtrl::Create(wxWindow *parent, style |= wxTR_NO_LINES; if (major < 10) style |= wxTR_ROW_LINES; + + if (style == 0 || style & wxTR_DEFAULT_STYLE) + style |= wxTR_FULL_ROW_HIGHLIGHT; + #endif // __WXMAC__ +#ifdef __WXGTK20__ + style |= wxTR_NO_LINES; +#endif if ( !wxControl::Create( parent, id, pos, size, style|wxHSCROLL|wxVSCROLL, @@ -844,7 +852,7 @@ bool wxGenericTreeCtrl::Create(wxWindow *parent, m_dottedPen = wxPen( wxT("grey"), 0, 0 ); - SetBestSize(size); + SetInitialSize(size); return true; } @@ -1021,6 +1029,12 @@ void wxGenericTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold) if ( pItem->IsBold() != bold ) { pItem->SetBold(bold); + + // recalculate the item size as bold and non bold fonts have different + // widths + wxClientDC dc(this); + CalculateSize(pItem, dc); + RefreshLine(pItem); } } @@ -1189,7 +1203,7 @@ wxTreeItemId wxGenericTreeCtrl::GetNextChild(const wxTreeItemId& item, // it's ok to cast cookie to size_t, we never have indices big enough to // overflow "void *" size_t *pIndex = (size_t *)&cookie; - if ( *pIndex < children.Count() ) + if ( *pIndex < children.GetCount() ) { return children.Item((*pIndex)++); } @@ -1200,36 +1214,6 @@ wxTreeItemId wxGenericTreeCtrl::GetNextChild(const wxTreeItemId& item, } } -#if WXWIN_COMPATIBILITY_2_4 - -wxTreeItemId wxGenericTreeCtrl::GetFirstChild(const wxTreeItemId& item, - long& cookie) const -{ - wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); - - cookie = 0; - return GetNextChild(item, cookie); -} - -wxTreeItemId wxGenericTreeCtrl::GetNextChild(const wxTreeItemId& item, - long& cookie) const -{ - wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); - - wxArrayGenericTreeItems& children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren(); - if ( (size_t)cookie < children.Count() ) - { - return children.Item((size_t)cookie++); - } - else - { - // there are no more of them - return wxTreeItemId(); - } -} - -#endif // WXWIN_COMPATIBILITY_2_4 - wxTreeItemId wxGenericTreeCtrl::GetLastChild(const wxTreeItemId& item) const { wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); @@ -1255,7 +1239,7 @@ wxTreeItemId wxGenericTreeCtrl::GetNextSibling(const wxTreeItemId& item) const wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent? size_t n = (size_t)(index + 1); - return n == siblings.Count() ? wxTreeItemId() : wxTreeItemId(siblings[n]); + return n == siblings.GetCount() ? wxTreeItemId() : wxTreeItemId(siblings[n]); } wxTreeItemId wxGenericTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const @@ -1389,10 +1373,12 @@ wxTreeItemId wxGenericTreeCtrl::FindItem(const wxTreeItemId& idParent, } // and try all the items (stop when we get to the one we started from) - while ( id != idParent && !GetItemText(id).Lower().StartsWith(prefix) ) + while (id.IsOk() && id != idParent && !GetItemText(id).Lower().StartsWith(prefix) ) { id = GetNext(id); } + // If we haven't found the item, id.IsOk() will be false, as per + // documentation } return id; @@ -1429,6 +1415,7 @@ wxTreeItemId wxGenericTreeCtrl::DoInsertItem(const wxTreeItemId& parentId, parent->Insert( item, previous == (size_t)-1 ? parent->GetChildren().size() : previous ); + InvalidateBestSize(); return item; } @@ -1463,6 +1450,7 @@ wxTreeItemId wxGenericTreeCtrl::AddRoot(const wxString& text, m_current->SetHilight( true ); } + InvalidateBestSize(); return m_anchor; } @@ -1494,7 +1482,7 @@ wxTreeItemId wxGenericTreeCtrl::DoInsertAfter(const wxTreeItemId& parentId, void wxGenericTreeCtrl::SendDeleteEvent(wxGenericTreeItem *item) { wxTreeEvent event(wxEVT_COMMAND_TREE_DELETE_ITEM, this, item); - ProcessEvent( event ); + GetEventHandler()->ProcessEvent( event ); } // Don't leave edit or selection on a child which is about to disappear @@ -1523,6 +1511,7 @@ void wxGenericTreeCtrl::DeleteChildren(const wxTreeItemId& itemId) wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem; ChildrenClosing(item); item->DeleteChildren(this); + InvalidateBestSize(); } void wxGenericTreeCtrl::Delete(const wxTreeItemId& itemId) @@ -1587,6 +1576,8 @@ void wxGenericTreeCtrl::Delete(const wxTreeItemId& itemId) m_select_me = NULL; delete item; + + InvalidateBestSize(); } void wxGenericTreeCtrl::DeleteAllItems() @@ -1613,7 +1604,7 @@ void wxGenericTreeCtrl::Expand(const wxTreeItemId& itemId) wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_EXPANDING, this, item); - if ( ProcessEvent( event ) && !event.IsAllowed() ) + if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() ) { // cancelled by program return; @@ -1625,7 +1616,7 @@ void wxGenericTreeCtrl::Expand(const wxTreeItemId& itemId) RefreshSubtree(item); event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED); - ProcessEvent( event ); + GetEventHandler()->ProcessEvent( event ); } void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId) @@ -1639,7 +1630,7 @@ void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId) return; wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSING, this, item); - if ( ProcessEvent( event ) && !event.IsAllowed() ) + if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() ) { // cancelled by program return; @@ -1650,7 +1641,7 @@ void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId) #if 0 // TODO why should items be collapsed recursively? wxArrayGenericTreeItems& children = item->GetChildren(); - size_t count = children.Count(); + size_t count = children.GetCount(); for ( size_t n = 0; n < count; n++ ) { Collapse(children[n]); @@ -1662,7 +1653,7 @@ void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId) RefreshSubtree(item); event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED); - ProcessEvent( event ); + GetEventHandler()->ProcessEvent( event ); } void wxGenericTreeCtrl::CollapseAndReset(const wxTreeItemId& item) @@ -1704,7 +1695,7 @@ void wxGenericTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item) if (item->HasChildren()) { wxArrayGenericTreeItems& children = item->GetChildren(); - size_t count = children.Count(); + size_t count = children.GetCount(); for ( size_t n = 0; n < count; ++n ) { UnselectAllChildren(children[n]); @@ -1740,7 +1731,7 @@ bool wxGenericTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTr int index = children.Index(crt_item); wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent? - size_t count = children.Count(); + size_t count = children.GetCount(); for (size_t n=(size_t)(index+1); nHasChildren()) { wxArrayGenericTreeItems& children = crt_item->GetChildren(); - size_t count = children.Count(); + size_t count = children.GetCount(); for ( size_t n = 0; n < count; ++n ) { if (TagAllChildrenUntilLast(children[n], last_item, select)) @@ -1884,9 +1875,16 @@ void wxGenericTreeCtrl::SelectItem(const wxTreeItemId& itemId, bool select) { wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem; wxCHECK_RET( item, wxT("SelectItem(): invalid tree item") ); + + wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item); + if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() ) + return; item->SetHilight(false); RefreshLine(item); + + event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED); + GetEventHandler()->ProcessEvent( event ); } } @@ -1915,7 +1913,7 @@ size_t wxGenericTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const } //else: the tree is empty, so no selections - return array.Count(); + return array.GetCount(); } void wxGenericTreeCtrl::EnsureVisible(const wxTreeItemId& item) @@ -2026,7 +2024,7 @@ void wxGenericTreeCtrl::SortChildren(const wxTreeItemId& itemId) wxT("wxGenericTreeCtrl::SortChildren is not reentrant") ); wxArrayGenericTreeItems& children = item->GetChildren(); - if ( children.Count() > 1 ) + if ( children.GetCount() > 1 ) { m_dirty = true; @@ -2150,7 +2148,7 @@ void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc) else if (item->IsBold()) dc.SetFont(m_boldFont); - long text_w = 0, text_h = 0; + wxCoord text_w = 0, text_h = 0; dc.GetTextExtent( item->GetText(), &text_w, &text_h ); int image_h = 0, image_w = 0; @@ -2173,20 +2171,7 @@ void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc) if ( item->IsSelected() ) { -// under mac selections are only a rectangle in case they don't have the focus -#ifdef __WXMAC__ - if ( !m_hasFocus ) - { - dc.SetBrush( *wxTRANSPARENT_BRUSH ) ; - dc.SetPen( wxPen( wxSystemSettings::GetColour( wxSYS_COLOUR_HIGHLIGHT ) , 1 , wxSOLID ) ) ; - } - else - { - dc.SetBrush( *m_hilightBrush ) ; - } -#else dc.SetBrush(*(m_hasFocus ? m_hilightBrush : m_hilightUnfocusedBrush)); -#endif drawItemBackground = true; } else @@ -2208,11 +2193,31 @@ void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc) if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) ) { - int x, y, w, h; - - DoGetPosition(&x, &y); - DoGetSize(&w, &h); - dc.DrawRectangle(x, item->GetY()+offset, w, total_h-offset); + int x, w, h; + x=0; + GetVirtualSize(&w, &h); + wxRect rect( x, item->GetY()+offset, w, total_h-offset); +#if !defined(__WXGTK20__) && !defined(__WXMAC__) + dc.DrawRectangle(rect); +#else + if (!item->IsSelected()) + { + dc.DrawRectangle(rect); + } + else + { + int flags = wxCONTROL_SELECTED; + if (m_hasFocus +#ifdef __WXMAC__ + && IsControlActive( (ControlRef)GetHandle() ) +#endif + ) + flags |= wxCONTROL_FOCUSED; + if ((item == m_current) && (m_hasFocus)) + flags |= wxCONTROL_CURRENT; + wxRendererNative::Get().DrawItemSelectionRect( this, dc, rect, flags ); + } +#endif } else { @@ -2221,16 +2226,49 @@ void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc) // If it's selected, and there's an image, then we should // take care to leave the area under the image painted in the // background colour. - dc.DrawRectangle( item->GetX() + image_w - 2, item->GetY()+offset, - item->GetWidth() - image_w + 2, total_h-offset ); + wxRect rect( item->GetX() + image_w - 2, item->GetY()+offset, + item->GetWidth() - image_w + 2, total_h-offset ); +#if !defined(__WXGTK20__) && !defined(__WXMAC__) + dc.DrawRectangle( rect ); +#else + rect.x -= 1; + rect.width += 2; + + int flags = wxCONTROL_SELECTED; + if (m_hasFocus) + flags |= wxCONTROL_FOCUSED; + if ((item == m_current) && (m_hasFocus)) + flags |= wxCONTROL_CURRENT; + wxRendererNative::Get().DrawItemSelectionRect( this, dc, rect, flags ); +#endif } // On GTK+ 2, drawing a 'normal' background is wrong for themes that // don't allow backgrounds to be customized. Not drawing the background, // except for custom item backgrounds, works for both kinds of theme. else if (drawItemBackground) { - dc.DrawRectangle( item->GetX()-2, item->GetY()+offset, - item->GetWidth()+2, total_h-offset ); + wxRect rect( item->GetX()-2, item->GetY()+offset, + item->GetWidth()+2, total_h-offset ); +#if !defined(__WXGTK20__) && !defined(__WXMAC__) + dc.DrawRectangle( rect ); +#else + if ( attr && attr->HasBackgroundColour() ) + { + dc.DrawRectangle( rect ); + } + else + { + rect.x -= 1; + rect.width += 2; + + int flags = wxCONTROL_SELECTED; + if (m_hasFocus) + flags |= wxCONTROL_FOCUSED; + if ((item == m_current) && (m_hasFocus)) + flags |= wxCONTROL_CURRENT; + wxRendererNative::Get().DrawItemSelectionRect( this, dc, rect, flags ); + } +#endif } } @@ -2267,7 +2305,7 @@ void wxGenericTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level // always expand hidden root int origY = y; wxArrayGenericTreeItems& children = item->GetChildren(); - int count = children.Count(); + int count = children.GetCount(); if (count > 0) { int n = 0, oldY; @@ -2315,11 +2353,15 @@ void wxGenericTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level // rectangle, so we want to make sure that the text is visible // against the normal background, not the highlightbackground, so // don't use the highlight text colour unless we have the focus. - && m_hasFocus + && m_hasFocus && IsControlActive( (ControlRef)GetHandle() ) #endif ) { +#ifdef __WXMAC__ + colText = *wxWHITE; +#else colText = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT); +#endif } else { @@ -2411,7 +2453,7 @@ void wxGenericTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level if (item->IsExpanded()) { wxArrayGenericTreeItems& children = item->GetChildren(); - int count = children.Count(); + int count = children.GetCount(); if (count > 0) { int n = 0, oldY; @@ -2514,6 +2556,16 @@ void wxGenericTreeCtrl::DrawLine(const wxTreeItemId &item, bool below) // wxWidgets callbacks // ----------------------------------------------------------------------------- +void wxGenericTreeCtrl::OnSize( wxSizeEvent &event ) +{ +#ifdef __WXGTK__ + if (HasFlag( wxTR_FULL_ROW_HIGHLIGHT) && m_current) + RefreshLine( m_current ); +#endif + + event.Skip(true); +} + void wxGenericTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) ) { wxPaintDC dc(this); @@ -2574,6 +2626,14 @@ void wxGenericTreeCtrl::OnChar( wxKeyEvent &event ) event.CmdDown(), is_multiple, extended_select, unselect_others); + if (GetLayoutDirection() == wxLayout_RightToLeft) + { + if (event.GetKeyCode() == WXK_RIGHT) + event.m_keyCode = WXK_LEFT; + else if (event.GetKeyCode() == WXK_LEFT) + event.m_keyCode = WXK_RIGHT; + } + // + : Expand // - : Collaspe // * : Expand all/Collapse all @@ -2706,7 +2766,11 @@ void wxGenericTreeCtrl::OnChar( wxKeyEvent &event ) case WXK_RIGHT: // this works the same as the down arrow except that we // also expand the item if it wasn't expanded yet - Expand(m_current); + if (m_current != GetRootItem().m_pItem || !HasFlag(wxTR_HIDE_ROOT)) + Expand(m_current); + //else: don't try to expand hidden root item (which can be the + // current one when the tree is empty) + // fall through case WXK_DOWN: @@ -2715,6 +2779,9 @@ void wxGenericTreeCtrl::OnChar( wxKeyEvent &event ) { wxTreeItemIdValue cookie; wxTreeItemId child = GetFirstChild( m_key_current, cookie ); + if ( !child ) + break; + DoSelectItem( child, unselect_others, extended_select ); m_key_current=(wxGenericTreeItem*) child.m_pItem; } @@ -3016,11 +3083,12 @@ void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event ) } #endif - // we process left mouse up event (enables in-place edit), right down + // we process left mouse up event (enables in-place edit), middle/right down // (pass to the user code), left dbl click (activate item) and // dragging/moving events for items drag-and-drop if ( !(event.LeftDown() || event.LeftUp() || + event.MiddleDown() || event.RightDown() || event.LeftDClick() || event.Dragging() || @@ -3171,6 +3239,12 @@ void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event ) nevent2.m_pointDrag = CalcScrolledPosition(pt); GetEventHandler()->ProcessEvent(nevent2); } + else if ( event.MiddleDown() ) + { + wxTreeEvent nevent(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, this, item); + nevent.m_pointDrag = CalcScrolledPosition(pt); + event.Skip(!GetEventHandler()->ProcessEvent(nevent)); + } else if ( event.LeftUp() ) { // this facilitates multiple-item drag-and-drop @@ -3210,7 +3284,7 @@ void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event ) m_lastOnSame = false; } } - else // !RightDown() && !LeftUp() ==> LeftDown() || LeftDClick() + else // !RightDown() && !MiddleDown() && !LeftUp() ==> LeftDown() || LeftDClick() { if ( event.LeftDown() ) { @@ -3376,7 +3450,7 @@ void wxGenericTreeCtrl::CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int l Recurse: wxArrayGenericTreeItems& children = item->GetChildren(); - size_t n, count = children.Count(); + size_t n, count = children.GetCount(); ++level; for (n = 0; n < count; ++n ) CalculateLevel( children[n], dc, level, y ); // recurse @@ -3399,10 +3473,16 @@ void wxGenericTreeCtrl::CalculatePositions() CalculateLevel( m_anchor, dc, 0, y ); // start recursion } +void wxGenericTreeCtrl::Refresh(bool eraseBackground, const wxRect *rect) +{ + if ( !m_freezeCount ) + wxTreeCtrlBase::Refresh(eraseBackground, rect); +} + void wxGenericTreeCtrl::RefreshSubtree(wxGenericTreeItem *item) { - if (m_dirty) return; - if (m_freezeCount) return; + if (m_dirty || m_freezeCount) + return; wxSize client = GetClientSize(); @@ -3418,8 +3498,8 @@ void wxGenericTreeCtrl::RefreshSubtree(wxGenericTreeItem *item) void wxGenericTreeCtrl::RefreshLine( wxGenericTreeItem *item ) { - if (m_dirty) return; - if (m_freezeCount) return; + if (m_dirty || m_freezeCount) + return; wxRect rect; CalcScrolledPosition(0, item->GetY(), NULL, &rect.y); @@ -3431,7 +3511,8 @@ void wxGenericTreeCtrl::RefreshLine( wxGenericTreeItem *item ) void wxGenericTreeCtrl::RefreshSelected() { - if (m_freezeCount) return; + if (m_freezeCount) + return; // TODO: this is awfully inefficient, we should keep the list of all // selected items internally, should be much faster @@ -3441,7 +3522,8 @@ void wxGenericTreeCtrl::RefreshSelected() void wxGenericTreeCtrl::RefreshSelectedUnder(wxGenericTreeItem *item) { - if (m_freezeCount) return; + if (m_freezeCount) + return; if ( item->IsSelected() ) RefreshLine(item); @@ -3478,8 +3560,6 @@ bool wxGenericTreeCtrl::SetBackgroundColour(const wxColour& colour) if ( !wxWindow::SetBackgroundColour(colour) ) return false; - if (m_freezeCount) return true; - Refresh(); return true; @@ -3490,8 +3570,6 @@ bool wxGenericTreeCtrl::SetForegroundColour(const wxColour& colour) if ( !wxWindow::SetForegroundColour(colour) ) return false; - if (m_freezeCount) return true; - Refresh(); return true; @@ -3529,20 +3607,6 @@ wxGenericTreeCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) #endif } -#if WXWIN_COMPATIBILITY_2_4 - -int wxGenericTreeCtrl::GetItemSelectedImage(const wxTreeItemId& item) const -{ - return GetItemImage(item, wxTreeItemIcon_Selected); -} - -void wxGenericTreeCtrl::SetItemSelectedImage(const wxTreeItemId& item, int image) -{ - SetItemImage(item, image, wxTreeItemIcon_Selected); -} - -#endif // WXWIN_COMPATIBILITY_2_4 - void wxGenericTreeCtrl::DoDirtyProcessing() { if (m_freezeCount) @@ -3555,4 +3619,35 @@ void wxGenericTreeCtrl::DoDirtyProcessing() AdjustMyScrollbars(); } +wxSize wxGenericTreeCtrl::DoGetBestSize() const +{ + // make sure all positions are calculated as normally this only done during + // idle time but we need them for base class DoGetBestSize() to return the + // correct result + wxConstCast(this, wxGenericTreeCtrl)->CalculatePositions(); + + wxSize size = wxTreeCtrlBase::DoGetBestSize(); + + // there seems to be an implicit extra border around the items, although + // I'm not really sure where does it come from -- but without this, the + // scrollbars appear in a tree with default/best size + size.IncBy(4, 4); + + // and the border has to be rounded up to a multiple of PIXELS_PER_UNIT or + // scrollbars still appear + const wxSize& borderSize = GetWindowBorderSize(); + + int dx = (size.x - borderSize.x) % PIXELS_PER_UNIT; + if ( dx ) + size.x += PIXELS_PER_UNIT - dx; + int dy = (size.y - borderSize.y) % PIXELS_PER_UNIT; + if ( dy ) + size.y += PIXELS_PER_UNIT - dy; + + // we need to update the cache too as the base class cached its own value + CacheBestSize(size); + + return size; +} + #endif // wxUSE_TREECTRL