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128 lines
3.4 KiB
128 lines
3.4 KiB
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2017-2022 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <wx/dataview.h>
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#include <wxdataviewctrl_helpers.h>
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wxDataViewItem GetPrevItem( wxDataViewCtrl const& aView, wxDataViewItem const& aItem )
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{
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wxDataViewItem prevItem = GetPrevSibling( aView, aItem );
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if( !prevItem.IsOk() )
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{
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prevItem = aView.GetModel()->GetParent( aItem );
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}
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else if( aView.IsExpanded( prevItem ) )
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{
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wxDataViewItemArray children;
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aView.GetModel()->GetChildren( prevItem, children );
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prevItem = children[children.size() - 1];
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}
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return prevItem;
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}
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wxDataViewItem GetNextItem( wxDataViewCtrl const& aView, wxDataViewItem const& aItem )
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{
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wxDataViewItem nextItem;
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wxDataViewItem invalid;
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if( !aItem.IsOk() )
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{
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// No selection. Select the first.
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wxDataViewItemArray children;
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aView.GetModel()->GetChildren( aItem, children );
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if( children.size() )
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return children[0];
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return invalid;
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}
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if( aView.IsExpanded( aItem ) )
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{
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wxDataViewItemArray children;
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aView.GetModel()->GetChildren( aItem, children );
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if( children.size() )
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return children[0];
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return invalid;
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}
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else
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{
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// Walk up levels until we find one that has a next sibling.
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for( wxDataViewItem walk = aItem; walk.IsOk(); walk = aView.GetModel()->GetParent( walk ) )
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{
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nextItem = GetNextSibling( aView, walk );
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if( nextItem.IsOk() )
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break;
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}
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}
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return nextItem;
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}
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wxDataViewItem GetPrevSibling( wxDataViewCtrl const& aView, wxDataViewItem const& aItem )
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{
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wxDataViewItemArray siblings;
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wxDataViewItem invalid;
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wxDataViewItem parent = aView.GetModel()->GetParent( aItem );
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aView.GetModel()->GetChildren( parent, siblings );
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for( size_t i = 0; i < siblings.size(); ++i )
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{
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if( siblings[i] == aItem )
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{
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if( i == 0 )
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return invalid;
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else
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return siblings[i - 1];
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}
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}
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return invalid;
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}
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wxDataViewItem GetNextSibling( wxDataViewCtrl const& aView, wxDataViewItem const& aItem )
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{
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wxDataViewItemArray siblings;
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wxDataViewItem invalid;
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wxDataViewItem parent = aView.GetModel()->GetParent( aItem );
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aView.GetModel()->GetChildren( parent, siblings );
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for( size_t i = 0; i < siblings.size(); ++i )
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{
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if( siblings[i] == aItem )
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{
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if( i == siblings.size() - 1 )
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return invalid;
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else
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return siblings[i + 1];
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}
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}
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return invalid;
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}
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