mirror of
https://gitlab.com/kicad/code/kicad.git
synced 2025-09-14 02:03:12 +02:00
10900c918f
There is a rendering bug in GTK3, which appears to be an upstream GTK issue. This can be worked around by, when filtering, ensuring the *parent* item of the selected item is visible. This will not cause the selected item to not be visible, as the selected item will be the first shown child. So it will be visible, as long as the list box is greater than a single row high, which it will be in all practical scenarios. This is done on all platforms, as it has a beneficial side-effect: the parent library of the selection is naturally shown to the user, so they don't need to scroll up to see what library their current filter selection was in. Fixes: lp:1804400 * https://bugs.launchpad.net/kicad/+bug/1804400
499 lines
13 KiB
C++
499 lines
13 KiB
C++
/*
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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 Chris Pavlina <pavlina.chris@gmail.com>
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* Copyright (C) 2014 Henner Zeller <h.zeller@acm.org>
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* Copyright (C) 2014-2017 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 <lib_tree_model_adapter.h>
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#include <eda_pattern_match.h>
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#include <wx/progdlg.h>
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#include <wx/tokenzr.h>
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#include <wx/wupdlock.h>
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static const int kDataViewIndent = 20;
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/**
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* Convert CMP_TREE_NODE -> wxDataViewItem
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*/
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wxDataViewItem LIB_TREE_MODEL_ADAPTER::ToItem( LIB_TREE_NODE const* aNode )
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{
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return wxDataViewItem( const_cast<void*>( static_cast<void const*>( aNode ) ) );
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}
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/**
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* Convert wxDataViewItem -> CMP_TREE_NODE
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*/
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LIB_TREE_NODE const* LIB_TREE_MODEL_ADAPTER::ToNode( wxDataViewItem aItem )
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{
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return static_cast<LIB_TREE_NODE const*>( aItem.GetID() );
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}
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/**
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* Convert CMP_TREE_NODE's children to wxDataViewItemArray
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*/
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unsigned int LIB_TREE_MODEL_ADAPTER::IntoArray( LIB_TREE_NODE const& aNode,
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wxDataViewItemArray& aChildren )
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{
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unsigned int n = 0;
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for( auto const& child: aNode.Children )
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{
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if( child->Score > 0 )
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{
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aChildren.Add( ToItem( &*child ) );
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++n;
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}
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}
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return n;
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}
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LIB_TREE_MODEL_ADAPTER::LIB_TREE_MODEL_ADAPTER()
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:m_filter( CMP_FILTER_NONE ),
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m_show_units( true ),
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m_preselect_unit( 0 ),
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m_freeze( 0 ),
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m_col_part( nullptr ),
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m_col_desc( nullptr ),
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m_widget( nullptr )
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{}
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LIB_TREE_MODEL_ADAPTER::~LIB_TREE_MODEL_ADAPTER()
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{}
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void LIB_TREE_MODEL_ADAPTER::SetFilter( CMP_FILTER_TYPE aFilter )
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{
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m_filter = aFilter;
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}
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void LIB_TREE_MODEL_ADAPTER::ShowUnits( bool aShow )
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{
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m_show_units = aShow;
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}
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void LIB_TREE_MODEL_ADAPTER::UpdateWidth( int aCol )
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{
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auto col = m_widget->GetColumn( aCol );
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if( col )
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{
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col->SetWidth( ColWidth( m_tree, aCol, col->GetTitle() ) );
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}
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}
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void LIB_TREE_MODEL_ADAPTER::SetPreselectNode( LIB_ID const& aLibId, int aUnit )
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{
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m_preselect_lib_id = aLibId;
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m_preselect_unit = aUnit;
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}
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void LIB_TREE_MODEL_ADAPTER::DoAddLibrary( wxString const& aNodeName, wxString const& aDesc,
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std::vector<LIB_TREE_ITEM*> const& aItemList,
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bool presorted )
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{
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auto& lib_node = m_tree.AddLib( aNodeName, aDesc );
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lib_node.VisLen = wxTheApp->GetTopWindow()->GetTextExtent( lib_node.Name ).x;
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for( auto item: aItemList )
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{
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if( item )
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{
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auto& child_node = lib_node.AddItem( item );
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child_node.VisLen = wxTheApp->GetTopWindow()->GetTextExtent( child_node.Name ).x;
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}
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}
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lib_node.AssignIntrinsicRanks( presorted );
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}
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void LIB_TREE_MODEL_ADAPTER::UpdateSearchString( wxString const& aSearch )
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{
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m_tree.ResetScore();
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wxStringTokenizer tokenizer( aSearch );
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while( tokenizer.HasMoreTokens() )
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{
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const wxString term = tokenizer.GetNextToken().Lower();
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EDA_COMBINED_MATCHER matcher( term );
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m_tree.UpdateScore( matcher );
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}
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m_tree.SortNodes();
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{
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wxWindowUpdateLocker updateLock( m_widget );
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// Even with the updateLock, wxWidgets sometimes ties its knickers in
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// a knot when trying to run a wxdataview_selection_changed_callback()
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// on a row that has been deleted.
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// https://bugs.launchpad.net/kicad/+bug/1756255
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m_widget->UnselectAll();
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Cleared();
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#ifndef __WINDOWS__
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// The fastest method to update wxDataViewCtrl is to rebuild from
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// scratch by calling Cleared(). Linux requires to reassociate model to
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// display data, but Windows will create multiple associations.
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AttachTo( m_widget );
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#endif
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}
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LIB_TREE_NODE* bestMatch = ShowResults();
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if( !bestMatch )
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bestMatch = ShowPreselect();
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if( !bestMatch )
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bestMatch = ShowSingleLibrary();
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if( bestMatch )
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{
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auto item = wxDataViewItem( bestMatch );
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m_widget->Select( item );
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// Make sure the *parent* item is visible. The selected item is the
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// first (shown) child of the parent. So it's always right below the parent,
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// and this way the user can also see what library the selected part belongs to,
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// without having a case where the selection is off the screen (unless the
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// window is a single row high, which is unlikely)
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//
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// This also happens to circumvent https://bugs.launchpad.net/kicad/+bug/1804400
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// which appears to be a GTK+3 bug.
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{
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wxDataViewItem parent = GetParent( item );
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if( parent.IsOk() )
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item = parent;
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}
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m_widget->EnsureVisible( item );
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}
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UpdateWidth( 0 );
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}
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void LIB_TREE_MODEL_ADAPTER::AttachTo( wxDataViewCtrl* aDataViewCtrl )
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{
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m_widget = aDataViewCtrl;
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aDataViewCtrl->SetIndent( kDataViewIndent );
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aDataViewCtrl->AssociateModel( this );
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aDataViewCtrl->ClearColumns();
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wxString part_head = _( "Item" );
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wxString desc_head = _( "Description" );
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m_col_part = aDataViewCtrl->AppendTextColumn( part_head, 0, wxDATAVIEW_CELL_INERT, 360 );
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m_col_desc = aDataViewCtrl->AppendTextColumn( desc_head, 1, wxDATAVIEW_CELL_INERT, 2000 );
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}
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LIB_ID LIB_TREE_MODEL_ADAPTER::GetAliasFor( const wxDataViewItem& aSelection ) const
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{
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auto node = ToNode( aSelection );
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LIB_ID emptyId;
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if( !node )
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return emptyId;
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return node->LibId;
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}
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int LIB_TREE_MODEL_ADAPTER::GetUnitFor( const wxDataViewItem& aSelection ) const
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{
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auto node = ToNode( aSelection );
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return node ? node->Unit : 0;
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}
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LIB_TREE_NODE::TYPE LIB_TREE_MODEL_ADAPTER::GetTypeFor( const wxDataViewItem& aSelection ) const
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{
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auto node = ToNode( aSelection );
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return node ? node->Type : LIB_TREE_NODE::INVALID;
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}
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int LIB_TREE_MODEL_ADAPTER::GetItemCount() const
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{
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int n = 0;
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for( auto& lib: m_tree.Children )
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n += lib->Children.size();
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return n;
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}
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wxDataViewItem LIB_TREE_MODEL_ADAPTER::FindItem( const LIB_ID& aLibId )
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{
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for( auto& lib: m_tree.Children )
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{
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if( lib->Name != aLibId.GetLibNickname() )
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continue;
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// if part name is not specified, return the library node
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if( aLibId.GetLibItemName() == "" )
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return ToItem( lib.get() );
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for( auto& alias: lib->Children )
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{
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if( alias->Name == aLibId.GetLibItemName() )
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return ToItem( alias.get() );
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}
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break; // could not find the part in the requested library
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}
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return wxDataViewItem();
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}
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unsigned int LIB_TREE_MODEL_ADAPTER::GetChildren( wxDataViewItem const& aItem,
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wxDataViewItemArray& aChildren ) const
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{
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auto node = ( aItem.IsOk() ? ToNode( aItem ) : &m_tree );
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if( node->Type != LIB_TREE_NODE::TYPE::LIBID
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|| ( m_show_units && node->Type == LIB_TREE_NODE::TYPE::LIBID ) )
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return IntoArray( *node, aChildren );
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else
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return 0;
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}
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bool LIB_TREE_MODEL_ADAPTER::HasContainerColumns( wxDataViewItem const& aItem ) const
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{
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return IsContainer( aItem );
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}
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bool LIB_TREE_MODEL_ADAPTER::IsContainer( wxDataViewItem const& aItem ) const
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{
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auto node = ToNode( aItem );
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return node ? node->Children.size() : true;
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}
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wxDataViewItem LIB_TREE_MODEL_ADAPTER::GetParent( wxDataViewItem const& aItem ) const
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{
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auto node = ToNode( aItem );
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auto parent = node ? node->Parent : nullptr;
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// wxDataViewModel has no root node, but rather top-level elements have
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// an invalid (null) parent.
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if( !node || !parent || parent->Type == LIB_TREE_NODE::TYPE::ROOT )
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return ToItem( nullptr );
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else
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return ToItem( parent );
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}
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void LIB_TREE_MODEL_ADAPTER::GetValue( wxVariant& aVariant,
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wxDataViewItem const& aItem,
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unsigned int aCol ) const
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{
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if( IsFrozen() )
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{
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aVariant = wxEmptyString;
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return;
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}
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auto node = ToNode( aItem );
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wxASSERT( node );
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switch( aCol )
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{
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default: // column == -1 is used for default Compare function
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case 0:
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aVariant = node->Name;
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break;
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case 1:
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aVariant = node->Desc;
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break;
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}
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}
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bool LIB_TREE_MODEL_ADAPTER::GetAttr( wxDataViewItem const& aItem,
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unsigned int aCol,
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wxDataViewItemAttr& aAttr ) const
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{
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if( IsFrozen() )
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return false;
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auto node = ToNode( aItem );
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wxASSERT( node );
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if( node->Type != LIB_TREE_NODE::LIBID )
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{
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// Currently only aliases are formatted at all
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return false;
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}
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if( !node->IsRoot && aCol == 0 )
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{
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// Names of non-root aliases are italicized
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aAttr.SetItalic( true );
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return true;
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}
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else
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{
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return false;
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}
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}
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int LIB_TREE_MODEL_ADAPTER::ColWidth( LIB_TREE_NODE& aTree, int aCol, wxString const& aHeading )
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{
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if( aCol == 0 )
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{
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int padding = m_widget->GetTextExtent( "M" ).x;
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int indent = m_widget->GetIndent();
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int longest = m_widget->GetTextExtent( aHeading ).x;
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for( auto& node : aTree.Children )
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{
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auto item = ToItem( &*node );
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if( !item.IsOk() )
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continue;
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if( node->Score > 0 )
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{
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// Ensure the text size is up to date:
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if( node->VisLen == 0 )
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node->VisLen = m_widget->GetTextExtent( node->Name ).x;
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longest = std::max( longest, node->VisLen + padding + indent );
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}
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if( !m_widget->IsExpanded( item ) )
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continue;
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for( auto& childNode : node->Children )
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{
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if( childNode->Score > 0 )
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{
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if( childNode->VisLen == 0 )
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childNode->VisLen = m_widget->GetTextExtent( childNode->Name ).x;
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longest = std::max( longest, childNode->VisLen + padding + 2 * indent );
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}
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}
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}
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return longest;
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}
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else
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return 2000;
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}
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void LIB_TREE_MODEL_ADAPTER::FindAndExpand( LIB_TREE_NODE& aNode,
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std::function<bool( LIB_TREE_NODE const* )> aFunc,
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LIB_TREE_NODE** aHighScore )
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{
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for( auto& node: aNode.Children )
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{
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if( aFunc( &*node ) )
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{
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auto item = wxDataViewItem( &*node );
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m_widget->ExpandAncestors( item );
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if( !(*aHighScore) || node->Score > (*aHighScore)->Score )
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(*aHighScore) = &*node;
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}
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FindAndExpand( *node, aFunc, aHighScore );
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}
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}
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LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowResults()
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{
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LIB_TREE_NODE* highScore = nullptr;
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FindAndExpand( m_tree,
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[]( LIB_TREE_NODE const* n )
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{
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// return leaf nodes with some level of matching
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return n->Children.size() == 0 && n->Score > 1;
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},
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&highScore );
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return highScore;
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}
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LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowPreselect()
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{
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LIB_TREE_NODE* highScore = nullptr;
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if( !m_preselect_lib_id.IsValid() )
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return highScore;
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FindAndExpand( m_tree,
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[&]( LIB_TREE_NODE const* n )
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{
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if( n->Type == LIB_TREE_NODE::LIBID && ( n->Children.empty() || !m_preselect_unit ) )
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return m_preselect_lib_id == n->LibId;
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else if( n->Type == LIB_TREE_NODE::UNIT && m_preselect_unit )
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return m_preselect_lib_id == n->Parent->LibId && m_preselect_unit == n->Unit;
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else
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return false;
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},
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&highScore );
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return highScore;
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}
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LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowSingleLibrary()
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{
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LIB_TREE_NODE* highScore = nullptr;
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FindAndExpand( m_tree,
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[]( LIB_TREE_NODE const* n )
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{
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return n->Type == LIB_TREE_NODE::TYPE::LIBID &&
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n->Parent->Parent->Children.size() == 1;
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},
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&highScore );
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return highScore;
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}
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