369 lines
12 KiB
C++
369 lines
12 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) 2014-2019 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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#ifndef LIB_TREE_MODEL_ADAPTER_H
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#define LIB_TREE_MODEL_ADAPTER_H
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#include <lib_id.h>
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#include <lib_tree_model.h>
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#include <wx/hashmap.h>
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#include <wx/dataview.h>
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#include <wx/headerctrl.h>
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#include <vector>
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#include <functional>
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/**
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* Adapter class in the component selector Model-View-Adapter (mediated MVC)
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* architecture. The other pieces are in:
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*
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* - Model: CMP_TREE_NODE and descendants in eeschema/cmp_tree_model.h
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* - View:
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* - DIALOG_CHOOSE_COMPONENT in eeschema/dialogs/dialog_choose_component.h
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* - wxDataViewCtrl
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*
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* This adapter presents the interface specified by wxDataViewModel to the
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* wxDataViewCtrl:
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*
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* +---+ +------------------+
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* +---+ Generates | A | | VIEW |
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* | M | from libs | D | wxDataViewModel |------------------|
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* | O | <---------- | A | <------------------> | wxDataViewCtrl |
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* | D | | P | |------------------|
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* | E | <---------> | T | <------------------- | wxTextCtrl |
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* | L | UpdateScore | E | UpdateSearchString() |------------------|
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* +---+ | R | | |
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* +---+ +------------------+
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*
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* Because this adapter is a wxDataViewModel, it is reference-counted by
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* wxObject. To ensure this interface is used correctly, the constructor
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* is private; LIB_TREE_MODEL_ADAPTER should be created by the static
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* factory method LIB_TREE_MODEL_ADAPTER::Create().
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*
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* Quick summary of methods used to drive this class:
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*
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* - `SetFilter()` - set whether the view is restricted to power parts
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* - `ShowUnits()` - set whether units are displayed
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* - `SetPreselectNode()` - set a node to highlight when not searching
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* - `AddLibrary()` - populate the model with all aliases in a library
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* - `AddAliasList()` - populate the model with a specific list of aliases
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*
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* Quick summary of methods used by the View:
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*
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* - `UpdateSearchString()` - pass in the user's search text
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* - `AttachTo()` - pass in the wxDataViewCtrl
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* - `GetAliasFor()` - get the LIB_ALIAS* for a selected item
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* - `GetUnitFor()` - get the unit for a selected item
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* - `GetComponentsCount()` - count the aliases loaded
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*
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* Methods implemented as part of wxDataViewModel:
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*
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* - `HasContainerColumns()` - whether a parent item has more than one column
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* - `IsContainer()` - whether an item is a parent
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* - `GetParent()` - return the parent of an item, or invalid if root
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* - `GetChildren()` - get the children of an item
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* - `GetColumnCount()` - get the number of columns in the view
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* - `GetColumnType()` - get the data type shown in each column
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* - `GetValue()` - get the data shown in a cell
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* - `SetValue()` - edit the data in a cell (does nothing)
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* - `GetAttr()` - get any per-item formatting
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* - `Compare()` - compare two rows, for sorting
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* - `HasDefaultCompare()` - whether sorted by default
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*/
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class TOOL_INTERACTIVE;
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class LIB_TREE_MODEL_ADAPTER: public wxDataViewModel
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{
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public:
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/**
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* Reference-counting container for a pointer to CMP_TREE_MODEL_ADAPTER_BASE.
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*/
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typedef wxObjectDataPtr<LIB_TREE_MODEL_ADAPTER> PTR;
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/**
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* Destructor. Do NOT delete this class manually; it is reference-counted
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* by wxObject.
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*/
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~LIB_TREE_MODEL_ADAPTER();
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/**
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* This enum allows a selective filtering of components to list
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*/
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enum CMP_FILTER_TYPE
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{
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CMP_FILTER_NONE, ///< no filtering
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CMP_FILTER_POWER, ///< list components flagged PWR
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};
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/**
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* Set the component filter type. Must be set before adding libraries
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*
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* @param aFilter if CMP_FILTER_POWER, only power parts are loaded
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*/
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void SetFilter( CMP_FILTER_TYPE aFilter );
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/**
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* Return the active filter.
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*/
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CMP_FILTER_TYPE GetFilter() const { return m_filter; }
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/**
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* Whether or not to show units. May be set at any time; updates at the next
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* UpdateSearchString()
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*
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* @param aShow if true, units are displayed
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*/
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void ShowUnits( bool aShow );
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/**
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* Update the column size based on the displayed contents
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*
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* @param aCol Which column to resize
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*/
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void UpdateWidth( int aCol );
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/**
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* Set the component name to be selected if there are no search results.
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* May be set at any time; updates at the next UpdateSearchString().
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*
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* @param aLibId symbol #LIB_ID to be selected
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* @param aUnit unit to be selected, if > 0 (0 selects the alias itself)
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*/
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void SetPreselectNode( LIB_ID const& aLibId, int aUnit );
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/**
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* Add the given list of components by alias. To be called in the setup
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* phase.
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*
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* @param aNodeName the parent node the components will appear under
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* @param aDesc the description field of the parent node
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* @param aItemList list of components
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*/
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void DoAddLibrary( wxString const& aNodeName, wxString const& aDesc,
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std::vector<LIB_TREE_ITEM*> const& aItemList, bool presorted );
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/**
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* Sort the tree and assign ranks after adding libraries.
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*/
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void AssignIntrinsicRanks() { m_tree.AssignIntrinsicRanks(); }
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/**
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* Set the search string provided by the user.
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*
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* @param aSearch full, unprocessed search text
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*/
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void UpdateSearchString( wxString const& aSearch );
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/**
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* Attach to a wxDataViewCtrl and initialize it. This will set up columns
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* and associate the model via the adapter.
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*
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* @param aDataViewCtrl the view component in the dialog
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*/
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void AttachTo( wxDataViewCtrl* aDataViewCtrl );
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/**
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* Return the alias for the given item.
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*
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* @param aSelection item from the wxDataViewCtrl
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* (see wxDataViewCtrl::GetSelection())
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*
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* @return alias, or nullptr if none is selected
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*/
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LIB_ID GetAliasFor( const wxDataViewItem& aSelection ) const;
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/**
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* Return the unit for the given item.
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*
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* @param aSelection item from the wxDataViewCtrl
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* (see wxDataViewCtrl::GetSelection())
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*
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* @return Unit, or zero if the alias itself is selected. Return valid is
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* invalid if GetAliasFor() returns nullptr.
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*/
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int GetUnitFor( const wxDataViewItem& aSelection ) const;
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/**
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* Return node type for the given item.
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*
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* @param aSelection item from the wxDataViewCtrl
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* (see wxDataViewCtrl::GetSelection())
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*
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* @return Type of the selected node, might be INVALID.
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*/
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LIB_TREE_NODE::TYPE GetTypeFor( const wxDataViewItem& aSelection ) const;
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virtual wxString GenerateInfo( LIB_ID const& aLibId, int aUnit ) { return wxEmptyString; };
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/**
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* Return the number of components loaded in the tree.
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*/
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int GetItemCount() const;
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/**
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* Return the number of libraries loaded in the tree.
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*/
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virtual int GetLibrariesCount() const
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{
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return m_tree.Children.size();
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}
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/**
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* Returns tree item corresponding to part.
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*
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* @param aLibId specifies the part and library name to be searched for.
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* @return Tree data item representing the part. Might be invalid if nothings was found.
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*/
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wxDataViewItem FindItem( const LIB_ID& aLibId );
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/**
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* Populate a list of all the children of an item
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*
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* @return number of children
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*/
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unsigned int GetChildren( wxDataViewItem const& aItem,
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wxDataViewItemArray& aChildren ) const override;
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// Freezing/Thawing. Used when updating the table model so that we don't try and fetch
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// values during updating. Primarily a problem on OSX which doesn't pay attention to the
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// wxDataViewCtrl's freeze count when updating the keyWindow.
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void Freeze() { m_freeze++; }
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void Thaw() { m_freeze--; }
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bool IsFrozen() const { return m_freeze; }
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// Allows subclasses to nominate a context menu handler.
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virtual TOOL_INTERACTIVE* GetContextMenuTool() { return nullptr; }
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protected:
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static wxDataViewItem ToItem( LIB_TREE_NODE const* aNode );
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static LIB_TREE_NODE const* ToNode( wxDataViewItem aItem );
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static unsigned int IntoArray( LIB_TREE_NODE const& aNode, wxDataViewItemArray& aChildren );
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LIB_TREE_NODE_ROOT m_tree;
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LIB_TREE_MODEL_ADAPTER();
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/**
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* Check whether a container has columns too
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*/
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bool HasContainerColumns( wxDataViewItem const& aItem ) const override;
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/**
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* Check whether an item can have children.
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*/
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bool IsContainer( wxDataViewItem const& aItem ) const override;
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/**
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* Get the parent of an item.
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*
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* @return parent of aItem, or an invalid wxDataViewItem if parent is root
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*/
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wxDataViewItem GetParent( wxDataViewItem const& aItem ) const override;
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unsigned int GetColumnCount() const override { return 2; }
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/**
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* Return the type of data stored in the column as indicated by wxVariant::GetType()
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*/
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wxString GetColumnType( unsigned int aCol ) const override { return "string"; }
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/**
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* Get the value of an item.
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*
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* @param aVariant wxVariant to receive the data
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* @param aItem item whose data will be placed into aVariant
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* @param aCol column number of the data
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*/
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void GetValue( wxVariant& aVariant,
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wxDataViewItem const& aItem,
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unsigned int aCol ) const override;
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/**
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* Set the value of an item. Does nothing - this model doesn't support
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* editing.
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*/
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bool SetValue( wxVariant const& aVariant,
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wxDataViewItem const& aItem,
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unsigned int aCol ) override { return false; }
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/**
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* Get any formatting for an item.
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*
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* @param aItem item to get formatting for
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* @param aCol column number of interest
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* @param aAttr receiver for attributes
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* @return true iff the item has non-default attributes
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*/
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bool GetAttr( wxDataViewItem const& aItem,
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unsigned int aCol,
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wxDataViewItemAttr& aAttr ) const override;
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private:
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CMP_FILTER_TYPE m_filter;
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bool m_show_units;
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LIB_ID m_preselect_lib_id;
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int m_preselect_unit;
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int m_freeze;
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wxDataViewColumn* m_col_part;
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wxDataViewColumn* m_col_desc;
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wxDataViewCtrl* m_widget;
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/**
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* Compute the width required for the given column of a node and its
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* children.
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*
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* @param aTree - root node of the tree
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* @param aCol - column number
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* @param aHeading - heading text, to set the minimum width
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*/
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int ColWidth( LIB_TREE_NODE& aTree, int aCol, wxString const& aHeading );
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/**
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* Find any results worth highlighting and expand them, according to given
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* criteria (f(CMP_TREE_NODE const*) -> bool)
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* The highest-scoring node is written to aHighScore
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*/
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void 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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* Find and expand successful search results. Return the best match (if any).
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*/
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LIB_TREE_NODE* ShowResults();
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/**
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* Find and expand preselected node. Return the best match (if any).
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*/
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LIB_TREE_NODE* ShowPreselect();
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/**
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* Find and expand a library if there is only one. Return the best match (if any).
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*/
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LIB_TREE_NODE* ShowSingleLibrary();
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};
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#endif // LIB_TREE_MODEL_ADAPTER_H
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