kicad/include/widgets/lib_tree.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014 Henner Zeller <h.zeller@acm.org>
* Copyright (C) 2014-2021 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 2
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef LIB_TREE_H
#define LIB_TREE_H
#include <wx/panel.h>
#include <lib_tree_model_adapter.h>
#include <html_window.h>
class wxDataViewCtrl;
class wxTextCtrl;
class wxHtmlLinkEvent;
class wxSearchCtrl;
class wxTimer;
class wxTimerEvent;
class ACTION_MENU;
class LIB_ID;
class LIB_TABLE;
/**
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* Widget displaying a tree of symbols with optional search text control and description panel.
*/
class LIB_TREE : public wxPanel
{
public:
///< Flags to select extra widgets
enum WIDGETS { NONE = 0x00, SEARCH = 0x01, DETAILS = 0x02, ALL = 0xFF };
/**
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* Construct a symbol tree.
*
* @param aParent parent window containing this tree widget
* @param aLibTable table containing libraries and items to display
* @param aAdapter a LIB_TREE_MODEL_ADAPTER instance to use
* @param aWidgets selection of sub-widgets to include
* @param aDetails if not null, a custom HTML_WINDOW to hold symbol details. If null this
* will be created inside the LIB_TREE.
*/
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LIB_TREE( wxWindow* aParent, LIB_TABLE* aLibTable,
wxObjectDataPtr<LIB_TREE_MODEL_ADAPTER>& aAdapter, WIDGETS aWidgets = ALL,
HTML_WINDOW* aDetails = nullptr );
~LIB_TREE() override;
/**
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* For multi-unit symbols, if the user selects the symbol itself
* rather than picking an individual unit, 0 will be returned in aUnit.
* Beware that this is an invalid unit number - this should be replaced
* with whatever default is desired (usually 1).
*
* @param aUnit if not NULL, the selected unit is filled in here.
* @return the library id of the symbol that has been selected.
*/
LIB_ID GetSelectedLibId( int* aUnit = nullptr ) const;
LIB_TREE_NODE* GetCurrentTreeNode() const;
/**
* Select an item in the tree widget.
*/
void SelectLibId( const LIB_ID& aLibId );
/**
* Ensure that an item is visible (preferably centered).
*/
void CenterLibId( const LIB_ID& aLibId );
/**
* Unselect currently selected item in wxDataViewCtrl
*/
void Unselect();
/**
* Expand and item i the tree widget.
*/
void ExpandLibId( const LIB_ID& aLibId );
/**
* Regenerate the tree.
*/
void Regenerate( bool aKeepState );
/**
* Refreshes the tree (mainly to update highlighting and asterisking)
*/
void RefreshLibTree();
wxWindow* GetFocusTarget();
protected:
/**
* Expand or collapse a node, switching it to the opposite state.
*/
void toggleExpand( const wxDataViewItem& aTreeId );
/**
* If a wxDataViewitem is valid, select it and post a selection event.
*/
void selectIfValid( const wxDataViewItem& aTreeId );
void centerIfValid( const wxDataViewItem& aTreeId );
void expandIfValid( const wxDataViewItem& aTreeId );
/**
* Post a wxEVT_DATAVIEW_SELECTION_CHANGED to notify the selection handler
* that a new part has been preselected.
*/
void postPreselectEvent();
/**
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* Post SYMBOL_SELECTED event to notify the selection handler that a part has been selected.
*/
void postSelectEvent();
/**
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* Structure storing state of the symbol tree widget.
*/
struct STATE
{
///< List of expanded nodes
std::vector<wxDataViewItem> expanded;
std::vector<wxString> pinned;
///< Current selection, might be not valid if nothing was selected
LIB_ID selection;
};
/**
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* Return the symbol tree widget state.
*/
STATE getState() const;
/**
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* Restore the symbol tree widget state from an object.
*/
void setState( const STATE& aState );
void onQueryText( wxCommandEvent& aEvent );
void onQueryEnter( wxCommandEvent& aEvent );
void onQueryCharHook( wxKeyEvent& aEvent );
void onTreeSelect( wxDataViewEvent& aEvent );
void onTreeActivate( wxDataViewEvent& aEvent );
void onDetailsLink( wxHtmlLinkEvent& aEvent );
void onPreselect( wxCommandEvent& aEvent );
void onContextMenu( wxDataViewEvent& aEvent );
void onDebounceTimer( wxTimerEvent& aEvent );
protected:
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LIB_TABLE* m_lib_table;
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wxObjectDataPtr<LIB_TREE_MODEL_ADAPTER> m_adapter;
wxSearchCtrl* m_query_ctrl;
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wxDataViewCtrl* m_tree_ctrl;
HTML_WINDOW* m_details_ctrl;
wxTimer* m_debounceTimer;
LIB_ID m_last_libid;
};
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///< Custom event sent when a new symbol is preselected
wxDECLARE_EVENT( SYMBOL_PRESELECTED, wxCommandEvent );
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///< Custom event sent when a symbol is selected
wxDECLARE_EVENT( SYMBOL_SELECTED, wxCommandEvent );
#endif /* LIB_TREE_H */