+ // cancelled by program
+ return;
+ }
+
+ item->Collapse();
+
+ wxArrayGenericTreeItems& children = item->GetChildren();
+ size_t count = children.Count();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ Collapse(children[n]);
+ }
+
+ CalculatePositions();
+
+ RefreshSubtree(item);
+
+ event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED);
+ ProcessEvent( event );
+}
+
+void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
+{
+ Collapse(item);
+ DeleteChildren(item);
+}
+
+void wxTreeCtrl::Toggle(const wxTreeItemId& itemId)
+{
+ wxGenericTreeItem *item = itemId.m_pItem;
+
+ if (item->IsExpanded())
+ Collapse(itemId);
+ else
+ Expand(itemId);
+}
+
+void wxTreeCtrl::Unselect()
+{
+ if (m_current)
+ {
+ m_current->SetHilight( FALSE );
+ RefreshLine( m_current );
+ }
+}
+
+void wxTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item)
+{
+ if (item->IsSelected())
+ {
+ item->SetHilight(FALSE);
+ RefreshLine(item);
+ }
+
+ if (item->HasChildren())
+ {
+ wxArrayGenericTreeItems& children = item->GetChildren();
+ size_t count = children.Count();
+ for ( size_t n = 0; n < count; ++n )
+ {
+ UnselectAllChildren(children[n]);
+ }
+ }
+}
+
+void wxTreeCtrl::UnselectAll()
+{
+ UnselectAllChildren(GetRootItem().m_pItem);
+}
+
+// Recursive function !
+// To stop we must have crt_item<last_item
+// Algorithm :
+// Tag all next children, when no more children,
+// Move to parent (not to tag)
+// Keep going... if we found last_item, we stop.
+bool wxTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
+{
+ wxGenericTreeItem *parent = crt_item->GetParent();
+
+ if (parent == NULL) // This is root item
+ return TagAllChildrenUntilLast(crt_item, last_item, select);
+
+ wxArrayGenericTreeItems& children = parent->GetChildren();
+ int index = children.Index(crt_item);
+ wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
+
+ size_t count = children.Count();
+ for (size_t n=(size_t)(index+1); n<count; ++n)
+ {
+ if (TagAllChildrenUntilLast(children[n], last_item, select)) return TRUE;
+ }
+
+ return TagNextChildren(parent, last_item, select);
+}
+
+bool wxTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
+{
+ crt_item->SetHilight(select);
+ RefreshLine(crt_item);
+
+ if (crt_item==last_item)
+ return TRUE;
+
+ if (crt_item->HasChildren())
+ {
+ wxArrayGenericTreeItems& children = crt_item->GetChildren();
+ size_t count = children.Count();
+ for ( size_t n = 0; n < count; ++n )
+ {
+ if (TagAllChildrenUntilLast(children[n], last_item, select))
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+void wxTreeCtrl::SelectItemRange(wxGenericTreeItem *item1, wxGenericTreeItem *item2)
+{
+ // item2 is not necessary after item1
+ wxGenericTreeItem *first=NULL, *last=NULL;
+
+ // choice first' and 'last' between item1 and item2
+ if (item1->GetY()<item2->GetY())
+ {
+ first=item1;
+ last=item2;
+ }
+ else
+ {
+ first=item2;
+ last=item1;
+ }
+
+ bool select = m_current->IsSelected();
+
+ if ( TagAllChildrenUntilLast(first,last,select) )
+ return;
+
+ TagNextChildren(first,last,select);
+}
+
+void wxTreeCtrl::SelectItem(const wxTreeItemId& itemId,
+ bool unselect_others,
+ bool extended_select)
+{
+ wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
+
+ bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE);
+ wxGenericTreeItem *item = itemId.m_pItem;
+
+ //wxCHECK_RET( ( (!unselect_others) && is_single),
+ // wxT("this is a single selection tree") );
+
+ // to keep going anyhow !!!
+ if (is_single)
+ {
+ if (item->IsSelected())
+ return; // nothing to do
+ unselect_others = TRUE;
+ extended_select = FALSE;
+ }
+ else if ( unselect_others && item->IsSelected() )
+ {
+ // selection change if there is more than one item currently selected
+ wxArrayTreeItemIds selected_items;
+ if ( GetSelections(selected_items) == 1 )
+ return;
+ }
+
+ wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, GetId() );
+ event.m_item = item;
+ event.m_itemOld = m_current;
+ event.SetEventObject( this );
+ // TODO : Here we don't send any selection mode yet !
+
+ if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
+ return;
+
+ // ctrl press
+ if (unselect_others)
+ {
+ if (is_single) Unselect(); // to speed up thing
+ else UnselectAll();
+ }
+
+ // shift press
+ if (extended_select)
+ {
+ if (m_current == NULL) m_current=m_key_current=GetRootItem().m_pItem;
+ // don't change the mark (m_current)
+ SelectItemRange(m_current, item);
+ }
+ else
+ {
+ bool select=TRUE; // the default
+
+ // Check if we need to toggle hilight (ctrl mode)
+ if (!unselect_others)
+ select=!item->IsSelected();
+
+ m_current = m_key_current = item;
+ m_current->SetHilight(select);
+ RefreshLine( m_current );
+ }
+
+ event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
+ GetEventHandler()->ProcessEvent( event );
+}
+
+void wxTreeCtrl::FillArray(wxGenericTreeItem *item,
+ wxArrayTreeItemIds &array) const
+{
+ if ( item->IsSelected() )
+ array.Add(wxTreeItemId(item));
+
+ if ( item->HasChildren() )
+ {
+ wxArrayGenericTreeItems& children = item->GetChildren();
+ size_t count = children.GetCount();
+ for ( size_t n = 0; n < count; ++n )
+ FillArray(children[n],array);
+ }
+}
+
+size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const
+{
+ array.Empty();
+ FillArray(GetRootItem().m_pItem, array);
+
+ return array.Count();
+}
+
+void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
+{
+ if (!item.IsOk()) return;
+
+ wxGenericTreeItem *gitem = item.m_pItem;
+
+ // first expand all parent branches
+ wxGenericTreeItem *parent = gitem->GetParent();
+ while ( parent )
+ {
+ Expand(parent);
+ parent = parent->GetParent();
+ }
+
+ //if (parent) CalculatePositions();
+
+ ScrollTo(item);
+}
+
+void wxTreeCtrl::ScrollTo(const wxTreeItemId &item)
+{
+ if (!item.IsOk()) return;
+
+ // We have to call this here because the label in
+ // question might just have been added and no screen
+ // update taken place.
+ if (m_dirty) wxYield();
+
+ wxGenericTreeItem *gitem = item.m_pItem;
+
+ // now scroll to the item
+ int item_y = gitem->GetY();
+
+ int start_x = 0;
+ int start_y = 0;
+ ViewStart( &start_x, &start_y );
+ start_y *= PIXELS_PER_UNIT;
+
+ int client_h = 0;
+ int client_w = 0;
+ GetClientSize( &client_w, &client_h );
+
+ if (item_y < start_y+3)
+ {
+ // going down
+ int x = 0;
+ int y = 0;
+ m_anchor->GetSize( x, y, this );
+ y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
+ x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
+ int x_pos = GetScrollPos( wxHORIZONTAL );
+ // Item should appear at top
+ SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, item_y/PIXELS_PER_UNIT );
+ }
+ else if (item_y+GetLineHeight(gitem) > start_y+client_h)
+ {
+ // going up
+ int x = 0;
+ int y = 0;
+ m_anchor->GetSize( x, y, this );
+ y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
+ x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
+ item_y += PIXELS_PER_UNIT+2;
+ int x_pos = GetScrollPos( wxHORIZONTAL );
+ // Item should appear at bottom
+ SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, (item_y+GetLineHeight(gitem)-client_h)/PIXELS_PER_UNIT );
+ }
+}
+
+// FIXME: tree sorting functions are not reentrant and not MT-safe!
+static wxTreeCtrl *s_treeBeingSorted = NULL;
+
+static int LINKAGEMODE tree_ctrl_compare_func(wxGenericTreeItem **item1,
+ wxGenericTreeItem **item2)
+{
+ wxCHECK_MSG( s_treeBeingSorted, 0, wxT("bug in wxTreeCtrl::SortChildren()") );
+
+ return s_treeBeingSorted->OnCompareItems(*item1, *item2);
+}
+
+int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
+ const wxTreeItemId& item2)
+{
+ return wxStrcmp(GetItemText(item1), GetItemText(item2));
+}
+
+void wxTreeCtrl::SortChildren(const wxTreeItemId& itemId)
+{
+ wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
+
+ wxGenericTreeItem *item = itemId.m_pItem;
+
+ wxCHECK_RET( !s_treeBeingSorted,
+ wxT("wxTreeCtrl::SortChildren is not reentrant") );
+
+ wxArrayGenericTreeItems& children = item->GetChildren();
+ if ( children.Count() > 1 )
+ {
+ s_treeBeingSorted = this;
+ children.Sort(tree_ctrl_compare_func);
+ s_treeBeingSorted = NULL;
+
+ m_dirty = TRUE;
+ }
+ //else: don't make the tree dirty as nothing changed
+}
+
+wxImageList *wxTreeCtrl::GetImageList() const
+{
+ return m_imageListNormal;
+}
+
+wxImageList *wxTreeCtrl::GetStateImageList() const
+{
+ return m_imageListState;
+}
+
+void wxTreeCtrl::SetImageList(wxImageList *imageList)
+{
+ m_imageListNormal = imageList;
+
+ // Calculate a m_lineHeight value from the image sizes.
+ // May be toggle off. Then wxTreeCtrl will spread when
+ // necessary (which might look ugly).
+#if 1
+ wxClientDC dc(this);
+ m_lineHeight = (int)(dc.GetCharHeight() + 4);
+ int
+ width = 0,
+ height = 0,
+ n = m_imageListNormal->GetImageCount();
+ for(int i = 0; i < n ; i++)
+ {
+ m_imageListNormal->GetSize(i, width, height);
+ if(height > m_lineHeight) m_lineHeight = height;
+ }
+
+ if (m_lineHeight<40) m_lineHeight+=2; // at least 4 pixels (odd such that a line can be drawn in between)
+ else m_lineHeight+=m_lineHeight/10; // otherwise 10% extra spacing
+
+#endif
+}
+
+void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
+{
+ m_imageListState = imageList;
+}
+
+// -----------------------------------------------------------------------------
+// helpers
+// -----------------------------------------------------------------------------
+
+void wxTreeCtrl::AdjustMyScrollbars()
+{
+ if (m_anchor)
+ {
+ int x = 0;
+ int y = 0;
+ m_anchor->GetSize( x, y, this );
+ y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
+ x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
+ int x_pos = GetScrollPos( wxHORIZONTAL );
+ int y_pos = GetScrollPos( wxVERTICAL );
+ SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, y_pos );
+ }
+ else
+ {
+ SetScrollbars( 0, 0, 0, 0 );
+ }
+}
+
+int wxTreeCtrl::GetLineHeight(wxGenericTreeItem *item) const
+{
+ if (GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT)
+ return item->GetHeight();
+ else
+ return m_lineHeight;
+}
+
+void wxTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc)
+{
+ wxTreeItemAttr *attr = item->GetAttributes();
+ if ( attr && attr->HasFont() )
+ dc.SetFont(attr->GetFont());
+ else if (item->IsBold())
+ dc.SetFont(m_boldFont);
+
+ long text_w = 0;
+ long text_h = 0;
+ dc.GetTextExtent( item->GetText(), &text_w, &text_h );
+
+ int image_h = 0;
+ int image_w = 0;
+ int image = item->GetCurrentImage();
+ if ( image != NO_IMAGE )
+ {
+ m_imageListNormal->GetSize( image, image_w, image_h );
+ image_w += 4;
+ }
+
+ int total_h = GetLineHeight(item);
+
+ dc.DrawRectangle( item->GetX()-2, item->GetY(), item->GetWidth()+2, total_h );
+
+ if ( image != NO_IMAGE )
+ {
+ dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, total_h );
+ m_imageListNormal->Draw( image, dc,
+ item->GetX(),
+ item->GetY() +((total_h > image_h)?((total_h-image_h)/2):0),
+ wxIMAGELIST_DRAW_TRANSPARENT );
+ dc.DestroyClippingRegion();
+ }
+
+ bool hasBgCol = attr && attr->HasBackgroundColour();
+ dc.SetBackgroundMode(hasBgCol ? wxSOLID : wxTRANSPARENT);
+ if ( hasBgCol )
+ dc.SetTextBackground(attr->GetBackgroundColour());
+ dc.DrawText( item->GetText(), image_w + item->GetX(), item->GetY()
+ + ((total_h > text_h) ? (total_h - text_h)/2 : 0));
+
+ // restore normal font
+ dc.SetFont( m_normalFont );
+}
+
+// Now y stands for the top of the item, whereas it used to stand for middle !
+void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
+{
+ int horizX = level*m_indent;
+
+ item->SetX( horizX+m_indent+m_spacing );
+ item->SetY( y );
+
+ int oldY = y;
+ y+=GetLineHeight(item)/2;
+
+ item->SetCross( horizX+m_indent, y );
+
+ int exposed_x = dc.LogicalToDeviceX( 0 );
+ int exposed_y = dc.LogicalToDeviceY( item->GetY() );
+
+ if (IsExposed( exposed_x, exposed_y, 10000, GetLineHeight(item) )) // 10000 = very much
+ {
+ int startX = horizX;
+ int endX = horizX + (m_indent-5);
+
+// if (!item->HasChildren()) endX += (m_indent+5);
+ if (!item->HasChildren()) endX += 20;
+
+ dc.DrawLine( startX, y, endX, y );
+
+ if (item->HasPlus())
+ {
+ dc.DrawLine( horizX+(m_indent+5), y, horizX+(m_indent+15), y );
+ dc.SetPen( *wxGREY_PEN );
+ dc.SetBrush( *wxWHITE_BRUSH );
+ dc.DrawRectangle( horizX+(m_indent-5), y-4, 11, 9 );
+
+ dc.SetPen( *wxBLACK_PEN );
+ dc.DrawLine( horizX+(m_indent-2), y, horizX+(m_indent+3), y );
+ if (!item->IsExpanded())
+ dc.DrawLine( horizX+m_indent, y-2, horizX+m_indent, y+3 );
+
+ dc.SetPen( m_dottedPen );
+ }
+
+ wxPen *pen = wxTRANSPARENT_PEN;
+ wxBrush *brush; // FIXME is this really needed?
+ wxColour colText;
+
+ if ( item->IsSelected() )
+ {
+ colText = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_HIGHLIGHTTEXT );
+
+ brush = m_hilightBrush;
+
+ if ( m_hasFocus )
+ pen = wxBLACK_PEN;
+
+ }
+ else
+ {
+ wxTreeItemAttr *attr = item->GetAttributes();
+ if ( attr && attr->HasTextColour() )
+ colText = attr->GetTextColour();
+ else
+ colText = *wxBLACK;
+
+ brush = wxWHITE_BRUSH;
+ }
+
+ // prepare to draw
+ dc.SetTextForeground(colText);
+ dc.SetPen(*pen);
+ dc.SetBrush(*brush);
+
+ // draw
+ PaintItem(item, dc);
+
+ // restore DC objects
+ dc.SetBrush( *wxWHITE_BRUSH );
+ dc.SetPen( m_dottedPen );
+ dc.SetTextForeground( *wxBLACK );
+ }
+
+ y = oldY+GetLineHeight(item);
+
+ if (item->IsExpanded())
+ {
+ oldY+=GetLineHeight(item)/2;
+ int semiOldY=0;
+
+ wxArrayGenericTreeItems& children = item->GetChildren();
+ size_t n, count = children.Count();
+ for ( n = 0; n < count; ++n )
+ {
+ semiOldY=y;
+ PaintLevel( children[n], dc, level+1, y );
+ }
+
+ // it may happen that the item is expanded but has no items (when you
+ // delete all its children for example) - don't draw the vertical line
+ // in this case
+ if (count > 0)
+ {
+ semiOldY+=GetLineHeight(children[--n])/2;
+ dc.DrawLine( horizX+m_indent, oldY+5, horizX+m_indent, semiOldY );
+ }
+ }
+}
+
+void wxTreeCtrl::DrawBorder(wxTreeItemId &item)
+{
+ if (!item) return;
+
+ wxGenericTreeItem *i=item.m_pItem;
+
+ wxClientDC dc(this);
+ PrepareDC( dc );
+ dc.SetLogicalFunction(wxINVERT);
+
+ int w,h,x;
+ ViewStart(&x,&h); // we only need x
+ GetClientSize(&w,&h); // we only need w
+
+ h=GetLineHeight(i)+1;
+ // 2 white column at border
+ dc.DrawRectangle( PIXELS_PER_UNIT*x+2, i->GetY()-1, w-6, h);
+}
+
+void wxTreeCtrl::DrawLine(wxTreeItemId &item, bool below)
+{
+ if (!item) return;
+
+ wxGenericTreeItem *i=item.m_pItem;
+
+ wxClientDC dc(this);
+ PrepareDC( dc );
+ dc.SetLogicalFunction(wxINVERT);
+
+ int w,h,y;
+ GetSize(&w,&h);
+
+ if (below) y=i->GetY()+GetLineHeight(i)-1;
+ else y=i->GetY();
+
+ dc.DrawLine( 0, y, w, y);
+}
+
+// -----------------------------------------------------------------------------
+// wxWindows callbacks
+// -----------------------------------------------------------------------------
+
+void wxTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) )
+{
+ if ( !m_anchor)
+ return;
+
+ wxPaintDC dc(this);
+ PrepareDC( dc );
+
+ dc.SetFont( m_normalFont );
projects / wxWidgets.git / blobdiff