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kicad/common/lib_tree_model_adapter.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 Chris Pavlina <pavlina.chris@gmail.com>
* Copyright (C) 2014 Henner Zeller <h.zeller@acm.org>
* Copyright (C) 2014-2019 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <lib_tree_model_adapter.h>
#include <eda_pattern_match.h>
#include <wx/tokenzr.h>
#include <wx/wupdlock.h>
static const int kDataViewIndent = 20;
/**
* Convert CMP_TREE_NODE -> wxDataViewItem
*/
wxDataViewItem LIB_TREE_MODEL_ADAPTER::ToItem( LIB_TREE_NODE const* aNode )
{
return wxDataViewItem( const_cast<void*>( static_cast<void const*>( aNode ) ) );
}
/**
* Convert wxDataViewItem -> CMP_TREE_NODE
*/
LIB_TREE_NODE const* LIB_TREE_MODEL_ADAPTER::ToNode( wxDataViewItem aItem )
{
return static_cast<LIB_TREE_NODE const*>( aItem.GetID() );
}
/**
* Convert CMP_TREE_NODE's children to wxDataViewItemArray
*/
unsigned int LIB_TREE_MODEL_ADAPTER::IntoArray( LIB_TREE_NODE const& aNode,
wxDataViewItemArray& aChildren )
{
unsigned int n = 0;
for( auto const& child: aNode.Children )
{
if( child->Score > 0 )
{
aChildren.Add( ToItem( &*child ) );
++n;
}
}
return n;
}
LIB_TREE_MODEL_ADAPTER::LIB_TREE_MODEL_ADAPTER()
:m_filter( CMP_FILTER_NONE ),
m_show_units( true ),
m_preselect_unit( 0 ),
m_freeze( 0 ),
m_col_part( nullptr ),
m_col_desc( nullptr ),
m_widget( nullptr )
{}
LIB_TREE_MODEL_ADAPTER::~LIB_TREE_MODEL_ADAPTER()
{}
void LIB_TREE_MODEL_ADAPTER::SetFilter( CMP_FILTER_TYPE aFilter )
{
m_filter = aFilter;
}
void LIB_TREE_MODEL_ADAPTER::ShowUnits( bool aShow )
{
m_show_units = aShow;
}
void LIB_TREE_MODEL_ADAPTER::SetPreselectNode( LIB_ID const& aLibId, int aUnit )
{
m_preselect_lib_id = aLibId;
m_preselect_unit = aUnit;
}
void LIB_TREE_MODEL_ADAPTER::DoAddLibrary( wxString const& aNodeName, wxString const& aDesc,
std::vector<LIB_TREE_ITEM*> const& aItemList,
bool presorted )
{
LIB_TREE_NODE_LIB& lib_node = m_tree.AddLib( aNodeName, aDesc );
for( LIB_TREE_ITEM* item: aItemList )
lib_node.AddItem( item );
lib_node.AssignIntrinsicRanks( presorted );
}
void LIB_TREE_MODEL_ADAPTER::UpdateSearchString( wxString const& aSearch )
{
m_tree.ResetScore();
wxStringTokenizer tokenizer( aSearch );
while( tokenizer.HasMoreTokens() )
{
const wxString term = tokenizer.GetNextToken().Lower();
EDA_COMBINED_MATCHER matcher( term );
m_tree.UpdateScore( matcher );
}
m_tree.SortNodes();
{
wxWindowUpdateLocker updateLock( m_widget );
// Even with the updateLock, wxWidgets sometimes ties its knickers in
// a knot when trying to run a wxdataview_selection_changed_callback()
// on a row that has been deleted.
// https://bugs.launchpad.net/kicad/+bug/1756255
m_widget->UnselectAll();
Cleared();
#ifndef __WINDOWS__
// The fastest method to update wxDataViewCtrl is to rebuild from
// scratch by calling Cleared(). Linux requires to reassociate model to
// display data, but Windows will create multiple associations.
AttachTo( m_widget );
#endif
}
LIB_TREE_NODE* bestMatch = ShowResults();
if( !bestMatch )
bestMatch = ShowPreselect();
if( !bestMatch )
bestMatch = ShowSingleLibrary();
if( bestMatch )
{
auto item = wxDataViewItem( bestMatch );
m_widget->Select( item );
// Make sure the *parent* item is visible. The selected item is the
// first (shown) child of the parent. So it's always right below the parent,
// and this way the user can also see what library the selected part belongs to,
// without having a case where the selection is off the screen (unless the
// window is a single row high, which is unlikely)
//
// This also happens to circumvent https://bugs.launchpad.net/kicad/+bug/1804400
// which appears to be a GTK+3 bug.
{
wxDataViewItem parent = GetParent( item );
if( parent.IsOk() )
item = parent;
}
m_widget->EnsureVisible( item );
}
}
void LIB_TREE_MODEL_ADAPTER::AttachTo( wxDataViewCtrl* aDataViewCtrl )
{
wxString partHead = _( "Item" );
int partWidth = 360;
wxString descHead = _( "Description" );
int descWidth = 2000;
if( aDataViewCtrl->GetColumnCount() > 0 )
{
partWidth = aDataViewCtrl->GetColumn( 0 )->GetWidth();
descWidth = aDataViewCtrl->GetColumn( 1 )->GetWidth();
}
m_widget = aDataViewCtrl;
aDataViewCtrl->SetIndent( kDataViewIndent );
aDataViewCtrl->AssociateModel( this );
aDataViewCtrl->ClearColumns();
m_col_part = aDataViewCtrl->AppendTextColumn( partHead, 0, wxDATAVIEW_CELL_INERT, partWidth );
m_col_desc = aDataViewCtrl->AppendTextColumn( descHead, 1, wxDATAVIEW_CELL_INERT, descWidth );
}
LIB_ID LIB_TREE_MODEL_ADAPTER::GetAliasFor( const wxDataViewItem& aSelection ) const
{
const LIB_TREE_NODE* node = ToNode( aSelection );
LIB_ID emptyId;
if( !node )
return emptyId;
return node->LibId;
}
int LIB_TREE_MODEL_ADAPTER::GetUnitFor( const wxDataViewItem& aSelection ) const
{
const LIB_TREE_NODE* node = ToNode( aSelection );
return node ? node->Unit : 0;
}
LIB_TREE_NODE::TYPE LIB_TREE_MODEL_ADAPTER::GetTypeFor( const wxDataViewItem& aSelection ) const
{
const LIB_TREE_NODE* node = ToNode( aSelection );
return node ? node->Type : LIB_TREE_NODE::INVALID;
}
int LIB_TREE_MODEL_ADAPTER::GetItemCount() const
{
int n = 0;
for( const std::unique_ptr<LIB_TREE_NODE>& lib: m_tree.Children )
n += lib->Children.size();
return n;
}
wxDataViewItem LIB_TREE_MODEL_ADAPTER::FindItem( const LIB_ID& aLibId )
{
for( auto& lib: m_tree.Children )
{
if( lib->Name != aLibId.GetLibNickname() )
continue;
// if part name is not specified, return the library node
if( aLibId.GetLibItemName() == "" )
return ToItem( lib.get() );
for( auto& alias: lib->Children )
{
if( alias->Name == aLibId.GetLibItemName() )
return ToItem( alias.get() );
}
break; // could not find the part in the requested library
}
return wxDataViewItem();
}
unsigned int LIB_TREE_MODEL_ADAPTER::GetChildren( wxDataViewItem const& aItem,
wxDataViewItemArray& aChildren ) const
{
auto node = ( aItem.IsOk() ? ToNode( aItem ) : &m_tree );
if( node->Type != LIB_TREE_NODE::TYPE::LIBID
|| ( m_show_units && node->Type == LIB_TREE_NODE::TYPE::LIBID ) )
return IntoArray( *node, aChildren );
else
return 0;
}
bool LIB_TREE_MODEL_ADAPTER::HasContainerColumns( wxDataViewItem const& aItem ) const
{
return IsContainer( aItem );
}
bool LIB_TREE_MODEL_ADAPTER::IsContainer( wxDataViewItem const& aItem ) const
{
auto node = ToNode( aItem );
return node ? node->Children.size() : true;
}
wxDataViewItem LIB_TREE_MODEL_ADAPTER::GetParent( wxDataViewItem const& aItem ) const
{
auto node = ToNode( aItem );
auto parent = node ? node->Parent : nullptr;
// wxDataViewModel has no root node, but rather top-level elements have
// an invalid (null) parent.
if( !node || !parent || parent->Type == LIB_TREE_NODE::TYPE::ROOT )
return ToItem( nullptr );
else
return ToItem( parent );
}
void LIB_TREE_MODEL_ADAPTER::GetValue( wxVariant& aVariant,
wxDataViewItem const& aItem,
unsigned int aCol ) const
{
if( IsFrozen() )
{
aVariant = wxEmptyString;
return;
}
auto node = ToNode( aItem );
wxASSERT( node );
switch( aCol )
{
default: // column == -1 is used for default Compare function
case 0:
aVariant = node->Name;
break;
case 1:
aVariant = node->Desc;
break;
}
}
bool LIB_TREE_MODEL_ADAPTER::GetAttr( wxDataViewItem const& aItem,
unsigned int aCol,
wxDataViewItemAttr& aAttr ) const
{
if( IsFrozen() )
return false;
auto node = ToNode( aItem );
wxASSERT( node );
if( node->Type != LIB_TREE_NODE::LIBID )
{
// Currently only aliases are formatted at all
return false;
}
if( !node->IsRoot && aCol == 0 )
{
// Names of non-root aliases are italicized
aAttr.SetItalic( true );
return true;
}
else
{
return false;
}
}
void LIB_TREE_MODEL_ADAPTER::FindAndExpand( LIB_TREE_NODE& aNode,
std::function<bool( LIB_TREE_NODE const* )> aFunc,
LIB_TREE_NODE** aHighScore )
{
for( auto& node: aNode.Children )
{
if( aFunc( &*node ) )
{
auto item = wxDataViewItem( &*node );
m_widget->ExpandAncestors( item );
if( !(*aHighScore) || node->Score > (*aHighScore)->Score )
(*aHighScore) = &*node;
}
FindAndExpand( *node, aFunc, aHighScore );
}
}
LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowResults()
{
LIB_TREE_NODE* highScore = nullptr;
FindAndExpand( m_tree,
[]( LIB_TREE_NODE const* n )
{
// return leaf nodes with some level of matching
return n->Type == LIB_TREE_NODE::TYPE::LIBID && n->Score > 1;
},
&highScore );
return highScore;
}
LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowPreselect()
{
LIB_TREE_NODE* highScore = nullptr;
if( !m_preselect_lib_id.IsValid() )
return highScore;
FindAndExpand( m_tree,
[&]( LIB_TREE_NODE const* n )
{
if( n->Type == LIB_TREE_NODE::LIBID && ( n->Children.empty() || !m_preselect_unit ) )
return m_preselect_lib_id == n->LibId;
else if( n->Type == LIB_TREE_NODE::UNIT && m_preselect_unit )
return m_preselect_lib_id == n->Parent->LibId && m_preselect_unit == n->Unit;
else
return false;
},
&highScore );
return highScore;
}
LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowSingleLibrary()
{
LIB_TREE_NODE* highScore = nullptr;
FindAndExpand( m_tree,
[]( LIB_TREE_NODE const* n )
{
return n->Type == LIB_TREE_NODE::TYPE::LIBID &&
n->Parent->Parent->Children.size() == 1;
},
&highScore );
return highScore;
}
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