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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) 2014-2023 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 <eda_base_frame.h>
#include <eda_pattern_match.h>
#include <kiface_base.h>
#include <lib_tree_model_adapter.h>
#include <project/project_file.h>
#include <settings/app_settings.h>
#include <widgets/ui_common.h>
#include <wx/tokenzr.h>
#include <wx/wupdlock.h>
#include <string_utils.h>
static const int kDataViewIndent = 20;
wxDataViewItem LIB_TREE_MODEL_ADAPTER::ToItem( const LIB_TREE_NODE* aNode )
{
return wxDataViewItem( const_cast<void*>( static_cast<void const*>( aNode ) ) );
}
LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ToNode( wxDataViewItem aItem )
{
return static_cast<LIB_TREE_NODE*>( aItem.GetID() );
}
LIB_TREE_MODEL_ADAPTER::LIB_TREE_MODEL_ADAPTER( EDA_BASE_FRAME* aParent,
const wxString& aPinnedKey ) :
m_parent( aParent ),
m_filter( SYM_FILTER_NONE ),
m_sort_mode( BEST_MATCH ),
m_show_units( true ),
m_preselect_unit( 0 ),
m_freeze( 0 ),
m_widget( nullptr )
{
// Default column widths. Do not translate these names.
m_colWidths[ _HKI( "Item" ) ] = 300;
m_colWidths[ _HKI( "Description" ) ] = 600;
m_availableColumns = { _HKI( "Item" ), _HKI( "Description" ) };
APP_SETTINGS_BASE* cfg = Kiface().KifaceSettings();
for( const std::pair<const wxString, int>& pair : cfg->m_LibTree.column_widths )
m_colWidths[pair.first] = pair.second;
m_shownColumns = cfg->m_LibTree.columns;
if( m_shownColumns.empty() )
m_shownColumns = { _HKI( "Item" ), _HKI( "Description" ) };
if( m_shownColumns[0] != _HKI( "Item" ) )
m_shownColumns.insert( m_shownColumns.begin(), _HKI( "Item" ) );
}
LIB_TREE_MODEL_ADAPTER::~LIB_TREE_MODEL_ADAPTER()
{}
void LIB_TREE_MODEL_ADAPTER::SaveSettings()
{
if( m_widget )
{
APP_SETTINGS_BASE* cfg = Kiface().KifaceSettings();
cfg->m_LibTree.columns = GetShownColumns();
cfg->m_LibTree.column_widths.clear();
for( const std::pair<const wxString, wxDataViewColumn*>& pair : m_colNameMap )
cfg->m_LibTree.column_widths[pair.first] = pair.second->GetWidth();
}
}
void LIB_TREE_MODEL_ADAPTER::SetFilter( SYM_FILTER_TYPE aFilter )
{
m_filter = aFilter;
}
void LIB_TREE_MODEL_ADAPTER::ShowUnits( bool aShow )
{
m_show_units = aShow;
}
void LIB_TREE_MODEL_ADAPTER::SetPreselectNode( const LIB_ID& aLibId, int aUnit )
{
m_preselect_lib_id = aLibId;
m_preselect_unit = aUnit;
}
LIB_TREE_NODE_LIB& LIB_TREE_MODEL_ADAPTER::DoAddLibraryNode( const wxString& aNodeName,
const wxString& aDesc, bool pinned )
{
LIB_TREE_NODE_LIB& lib_node = m_tree.AddLib( aNodeName, aDesc );
lib_node.m_Pinned = pinned;
return lib_node;
}
void LIB_TREE_MODEL_ADAPTER::DoAddLibrary( const wxString& aNodeName, const wxString& aDesc,
const std::vector<LIB_TREE_ITEM*>& aItemList,
bool pinned, bool presorted )
{
LIB_TREE_NODE_LIB& lib_node = DoAddLibraryNode( aNodeName, aDesc, pinned );
for( LIB_TREE_ITEM* item: aItemList )
lib_node.AddItem( item );
lib_node.AssignIntrinsicRanks( presorted );
}
void LIB_TREE_MODEL_ADAPTER::UpdateSearchString( const wxString& aSearch, bool aState )
{
{
wxWindowUpdateLocker updateLock( m_widget );
// Even with the updateLock, wxWidgets sometimes ties its knickers in a knot 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();
// This collapse is required before the call to "Freeze()" below. Once Freeze()
// is called, GetParent() will return nullptr. While this works for some calls, it
// segfaults when we have any expanded elements b/c the sub units in the tree don't
// have explicit references that are maintained over a search
// The tree will be expanded again below when we get our matches
//
// Also note that this cannot happen when we have deleted a symbol as GTK will also
// iterate over the tree in this case and find a symbol that has an invalid link
// and crash https://gitlab.com/kicad/code/kicad/-/issues/6910
if( !aState && !aSearch.IsNull() && m_tree.m_Children.size() )
{
for( std::unique_ptr<LIB_TREE_NODE>& child: m_tree.m_Children )
m_widget->Collapse( wxDataViewItem( &*child ) );
}
// DO NOT REMOVE THE FREEZE/THAW. This freeze/thaw is a flag for this model adapter
// that tells it when it shouldn't trust any of the data in the model. When set, it will
// not return invalid data to the UI, since this invalid data can cause crashes.
// This is different than the update locker, which locks the UI aspects only.
Freeze();
BeforeReset();
m_tree.ResetScore();
wxStringTokenizer tokenizer( aSearch );
while( tokenizer.HasMoreTokens() )
{
wxString lib;
wxString term = tokenizer.GetNextToken().Lower();
if( term.Contains( ":" ) )
{
lib = term.BeforeFirst( ':' );
term = term.AfterFirst( ':' );
}
EDA_COMBINED_MATCHER matcher( term, CTX_LIBITEM );
m_tree.UpdateScore( matcher, lib );
}
m_tree.SortNodes( m_sort_mode == BEST_MATCH );
AfterReset();
Thaw();
}
const LIB_TREE_NODE* firstMatch = ShowResults();
if( firstMatch )
{
wxDataViewItem item = ToItem( firstMatch );
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() )
m_widget->EnsureVisible( parent );
}
m_widget->EnsureVisible( item );
}
}
void LIB_TREE_MODEL_ADAPTER::AttachTo( wxDataViewCtrl* aDataViewCtrl )
{
m_widget = aDataViewCtrl;
aDataViewCtrl->SetIndent( kDataViewIndent );
aDataViewCtrl->AssociateModel( this );
recreateColumns();
}
void LIB_TREE_MODEL_ADAPTER::recreateColumns()
{
m_widget->ClearColumns();
m_columns.clear();
m_colIdxMap.clear();
m_colNameMap.clear();
// The Item column is always shown
doAddColumn( wxT( "Item" ) );
for( const wxString& colName : m_shownColumns )
{
if( !m_colNameMap.count( colName ) )
doAddColumn( colName, colName == wxT( "Description" ) );
}
}
void LIB_TREE_MODEL_ADAPTER::resortTree()
{
Freeze();
BeforeReset();
m_tree.SortNodes( m_sort_mode == BEST_MATCH );
AfterReset();
Thaw();
}
void LIB_TREE_MODEL_ADAPTER::PinLibrary( LIB_TREE_NODE* aTreeNode )
{
m_parent->Prj().PinLibrary( aTreeNode->m_LibId.GetLibNickname(), isSymbolModel() );
aTreeNode->m_Pinned = true;
resortTree();
m_widget->EnsureVisible( ToItem( aTreeNode ) );
}
void LIB_TREE_MODEL_ADAPTER::UnpinLibrary( LIB_TREE_NODE* aTreeNode )
{
m_parent->Prj().UnpinLibrary( aTreeNode->m_LibId.GetLibNickname(), isSymbolModel() );
aTreeNode->m_Pinned = false;
resortTree();
// Keep focus at top when unpinning
}
wxDataViewColumn* LIB_TREE_MODEL_ADAPTER::doAddColumn( const wxString& aHeader, bool aTranslate )
{
wxString translatedHeader = aTranslate ? wxGetTranslation( aHeader ) : aHeader;
// The extent of the text doesn't take into account the space on either side
// in the header, so artificially pad it
wxSize headerMinWidth = KIUI::GetTextSize( translatedHeader + wxT( "MMM" ), m_widget );
if( !m_colWidths.count( aHeader ) || m_colWidths[aHeader] < headerMinWidth.x )
m_colWidths[aHeader] = headerMinWidth.x;
int index = m_columns.size();
wxDataViewColumn* ret = m_widget->AppendTextColumn( translatedHeader, index,
wxDATAVIEW_CELL_INERT,
m_colWidths[aHeader] );
ret->SetMinWidth( headerMinWidth.x );
m_columns.emplace_back( ret );
m_colNameMap[aHeader] = ret;
m_colIdxMap[m_columns.size() - 1] = aHeader;
return ret;
}
void LIB_TREE_MODEL_ADAPTER::addColumnIfNecessary( const wxString& aHeader )
{
if( m_colNameMap.count( aHeader ) )
return;
// Columns will be created later
m_colNameMap[aHeader] = nullptr;
m_availableColumns.emplace_back( aHeader );
}
void LIB_TREE_MODEL_ADAPTER::SetShownColumns( const std::vector<wxString>& aColumnNames )
{
bool recreate = m_shownColumns != aColumnNames;
m_shownColumns = aColumnNames;
if( recreate && m_widget )
recreateColumns();
}
LIB_ID LIB_TREE_MODEL_ADAPTER::GetAliasFor( const wxDataViewItem& aSelection ) const
{
const LIB_TREE_NODE* node = ToNode( aSelection );
return node ? node->m_LibId : LIB_ID();
}
int LIB_TREE_MODEL_ADAPTER::GetUnitFor( const wxDataViewItem& aSelection ) const
{
const LIB_TREE_NODE* node = ToNode( aSelection );
return node ? node->m_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->m_Type : LIB_TREE_NODE::INVALID;
}
LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::GetTreeNodeFor( const wxDataViewItem& aSelection ) const
{
return ToNode( aSelection );
}
int LIB_TREE_MODEL_ADAPTER::GetItemCount() const
{
int n = 0;
for( const std::unique_ptr<LIB_TREE_NODE>& lib: m_tree.m_Children )
n += lib->m_Children.size();
return n;
}
wxDataViewItem LIB_TREE_MODEL_ADAPTER::FindItem( const LIB_ID& aLibId )
{
for( std::unique_ptr<LIB_TREE_NODE>& lib: m_tree.m_Children )
{
if( lib->m_Name != aLibId.GetLibNickname() )
continue;
// if part name is not specified, return the library node
if( aLibId.GetLibItemName() == "" )
return ToItem( lib.get() );
for( std::unique_ptr<LIB_TREE_NODE>& alias: lib->m_Children )
{
if( alias->m_Name == aLibId.GetLibItemName() )
return ToItem( alias.get() );
}
break; // could not find the part in the requested library
}
return wxDataViewItem();
}
wxDataViewItem LIB_TREE_MODEL_ADAPTER::GetCurrentDataViewItem()
{
return FindItem( m_preselect_lib_id );
}
unsigned int LIB_TREE_MODEL_ADAPTER::GetChildren( const wxDataViewItem& aItem,
wxDataViewItemArray& aChildren ) const
{
const LIB_TREE_NODE* node = ( aItem.IsOk() ? ToNode( aItem ) : &m_tree );
unsigned int count = 0;
if( node->m_Type == LIB_TREE_NODE::TYPE::ROOT
|| node->m_Type == LIB_TREE_NODE::LIB
|| ( m_show_units && node->m_Type == LIB_TREE_NODE::TYPE::LIBID ) )
{
for( std::unique_ptr<LIB_TREE_NODE> const& child: node->m_Children )
{
if( child->m_Score > 0 )
{
aChildren.Add( ToItem( &*child ) );
++count;
}
}
}
return count;
}
void LIB_TREE_MODEL_ADAPTER::FinishTreeInitialization()
{
wxDataViewColumn* col = nullptr;
size_t idx = 0;
int totalWidth = 0;
wxString header;
for( ; idx < m_columns.size() - 1; idx++ )
{
wxASSERT( m_colIdxMap.count( idx ) );
col = m_columns[idx];
header = m_colIdxMap[idx];
wxASSERT( m_colWidths.count( header ) );
col->SetWidth( m_colWidths[header] );
totalWidth += col->GetWidth();
}
int remainingWidth = m_widget->GetSize().x - totalWidth;
header = m_columns[idx]->GetTitle();
m_columns[idx]->SetWidth( std::max( m_colWidths[header], remainingWidth ) );
}
void LIB_TREE_MODEL_ADAPTER::RefreshTree()
{
// Yes, this is an enormous hack. But it works on all platforms, it doesn't suffer
// the On^2 sorting issues that ItemChanged() does on OSX, and it doesn't lose the
// user's scroll position (which re-attaching or deleting/re-inserting columns does).
static int walk = 1;
std::vector<int> widths;
for( const wxDataViewColumn* col : m_columns )
widths.emplace_back( col->GetWidth() );
wxASSERT( widths.size() );
// Only use the widths read back if they are non-zero.
// GTK returns the displayed width of the column, which is not calculated immediately
if( widths[0] > 0 )
{
size_t i = 0;
for( const auto& [ colName, colPtr ] : m_colNameMap )
m_colWidths[ colName ] = widths[i++];
}
auto colIt = m_colWidths.begin();
colIt->second += walk;
colIt++;
if( colIt != m_colWidths.end() )
colIt->second -= walk;
for( const auto& [ colName, colPtr ] : m_colNameMap )
{
if( colPtr == m_columns[0] )
continue;
wxASSERT( m_colWidths.count( colName ) );
colPtr->SetWidth( m_colWidths[ colName ] );
}
walk = -walk;
}
bool LIB_TREE_MODEL_ADAPTER::HasContainerColumns( const wxDataViewItem& aItem ) const
{
return IsContainer( aItem );
}
bool LIB_TREE_MODEL_ADAPTER::IsContainer( const wxDataViewItem& aItem ) const
{
LIB_TREE_NODE* node = ToNode( aItem );
return node ? node->m_Children.size() : true;
}
wxDataViewItem LIB_TREE_MODEL_ADAPTER::GetParent( const wxDataViewItem& aItem ) const
{
if( m_freeze )
return ToItem( nullptr );
LIB_TREE_NODE* node = ToNode( aItem );
LIB_TREE_NODE* parent = node ? node->m_Parent : nullptr;
// wxDataViewModel has no root node, but rather top-level elements have
// an invalid (null) parent.
if( !node || !parent || parent->m_Type == LIB_TREE_NODE::TYPE::ROOT )
return ToItem( nullptr );
else
return ToItem( parent );
}
void LIB_TREE_MODEL_ADAPTER::GetValue( wxVariant& aVariant,
const wxDataViewItem& aItem,
unsigned int aCol ) const
{
if( IsFrozen() )
{
aVariant = wxEmptyString;
return;
}
LIB_TREE_NODE* node = ToNode( aItem );
wxCHECK( node, /* void */ );
switch( aCol )
{
case NAME_COL:
if( node->m_Pinned )
aVariant = GetPinningSymbol() + UnescapeString( node->m_Name );
else
aVariant = UnescapeString( node->m_Name );
break;
default:
if( m_colIdxMap.count( aCol ) )
{
const wxString& key = m_colIdxMap.at( aCol );
if( node->m_Fields.count( key ) )
aVariant = node->m_Fields.at( key );
else if( key == wxT( "Description" ) )
aVariant = node->m_Desc;
else
aVariant = wxEmptyString;
}
break;
}
}
bool LIB_TREE_MODEL_ADAPTER::GetAttr( const wxDataViewItem& aItem,
unsigned int aCol,
wxDataViewItemAttr& aAttr ) const
{
if( IsFrozen() )
return false;
LIB_TREE_NODE* node = ToNode( aItem );
wxCHECK( node, false );
if( node->m_Type == LIB_TREE_NODE::LIBID )
{
if( !node->m_IsRoot && aCol == 0 )
{
// Names of non-root aliases are italicized
aAttr.SetItalic( true );
return true;
}
}
return false;
}
void recursiveDescent( LIB_TREE_NODE& aNode, const std::function<bool( const LIB_TREE_NODE* )>& f )
{
for( std::unique_ptr<LIB_TREE_NODE>& node: aNode.m_Children )
{
if( !f( node.get() ) )
break;
recursiveDescent( *node, f );
}
}
const LIB_TREE_NODE* LIB_TREE_MODEL_ADAPTER::ShowResults()
{
const LIB_TREE_NODE* firstMatch = nullptr;
// Expand parents of leaf nodes with some level of matching
recursiveDescent( m_tree,
[&]( const LIB_TREE_NODE* n )
{
if( n->m_Type == LIB_TREE_NODE::TYPE::LIBID && n->m_Score > 1 )
{
if( !firstMatch )
firstMatch = n;
else if( n->m_Score > firstMatch->m_Score )
firstMatch = n;
m_widget->ExpandAncestors( ToItem( n ) );
}
return true; // keep going to expand ancestors of all found items
} );
// If no matches, find and show the preselect node
if( !firstMatch && m_preselect_lib_id.IsValid() )
{
recursiveDescent( m_tree,
[&]( const LIB_TREE_NODE* n )
{
if( n->m_Type == LIB_TREE_NODE::LIBID
&& ( n->m_Children.empty() || !m_preselect_unit )
&& m_preselect_lib_id == n->m_LibId )
{
firstMatch = n;
m_widget->ExpandAncestors( ToItem( n ) );
return false;
}
else if( n->m_Type == LIB_TREE_NODE::UNIT
&& ( m_preselect_unit && m_preselect_unit == n->m_Unit )
&& m_preselect_lib_id == n->m_Parent->m_LibId )
{
firstMatch = n;
m_widget->ExpandAncestors( ToItem( n ) );
return false;
}
return true;
} );
}
// If still no matches expand a single library if there is only one
if( !firstMatch )
{
recursiveDescent( m_tree,
[&]( const LIB_TREE_NODE* n )
{
if( n->m_Type == LIB_TREE_NODE::TYPE::LIBID
&& n->m_Parent->m_Parent->m_Children.size() == 1 )
{
firstMatch = n;
m_widget->ExpandAncestors( ToItem( n ) );
return false;
}
return true;
} );
}
return firstMatch;
}
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