/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2015 CERN * @author Maciej Suminski * * 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 CONDITIONAL_MENU_H #define CONDITIONAL_MENU_H #include "selection_conditions.h" #include #include class SELECTION_TOOL; class TOOL_ACTION; class TOOL_INTERACTIVE; class CONTEXT_MENU; class CONDITIONAL_MENU { public: ///> Constant to indicate that we do not care about an ENTRY location in the menu. static const int ANY_ORDER = -1; CONDITIONAL_MENU( TOOL_INTERACTIVE* aTool ) : m_tool( aTool ) {} /** * Function AddItem() * * Adds a menu entry to run a TOOL_ACTION on selected items. * @param aAction is a menu entry to be added. * @param aCondition is a condition that has to be fulfilled to enable the menu entry. * @param aOrder determines location of the added item, higher numbers are put on the bottom. * You may use ANY_ORDER here if you think it does not matter. */ void AddItem( const TOOL_ACTION& aAction, const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ); /** * Function AddMenu() * * Adds a submenu to the menu. CONDITIONAL_MENU takes ownership of the added menu, so it will * be freed when the CONDITIONAL_MENU object is destroyed. * @param aMenu is the submenu to be added. * @param aExpand determines if the added submenu items should be added as individual items * or as a submenu. * @param aCondition is a condition that has to be fulfilled to enable the submenu entry. * @param aOrder determines location of the added menu, higher numbers are put on the bottom. * You may use ANY_ORDER here if you think it does not matter. */ void AddMenu( CONTEXT_MENU* aMenu, bool aExpand = false, const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ); /** * Function AddSeparator() * * Adds a separator to the menu. * @param aCondition is a condition that has to be fulfilled to enable the submenu entry. * @param aOrder determines location of the added menu, higher numbers are put on the bottom. * You may use ANY_ORDER here if you think it does not matter. */ void AddSeparator( const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ); /** * Function Generate() * * Generates a context menu that contains only entries that are satisfying assigned conditions. * @param aSelection is selection for which the conditions are checked against. * @return Menu filtered by the entry conditions. */ CONTEXT_MENU* Generate( SELECTION& aSelection ); private: ///> Helper class to organize menu entries. class ENTRY { public: ENTRY( const TOOL_ACTION* aAction, const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ) : m_type( ACTION ), m_condition( aCondition ), m_order( aOrder ), m_expand( false ) { m_data.action = aAction; } ENTRY( CONTEXT_MENU* aMenu, bool aExpand = false, const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ) : m_type( MENU ), m_condition( aCondition ), m_order( aOrder ), m_expand( aExpand ) { m_data.menu = aMenu; } ENTRY( wxMenuItem* aItem, const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ) : m_type( WXITEM ), m_condition( aCondition ), m_order( aOrder ), m_expand( false ) { m_data.wxItem = aItem; } // Separator ENTRY( const SELECTION_CONDITION& aCondition = SELECTION_CONDITIONS::ShowAlways, int aOrder = ANY_ORDER ) : m_type( SEPARATOR ), m_condition( aCondition ), m_order( aOrder ), m_expand( false ) { m_data.wxItem = NULL; } ///> Possible entry types. enum ENTRY_TYPE { ACTION, MENU, WXITEM, SEPARATOR }; inline ENTRY_TYPE Type() const { return m_type; } inline const TOOL_ACTION* Action() const { assert( m_type == ACTION ); return m_data.action; } inline CONTEXT_MENU* Menu() const { assert( m_type == MENU ); return m_data.menu; } inline wxMenuItem* wxItem() const { assert( m_type == WXITEM ); return m_data.wxItem; } inline bool Expand() const { assert( m_type == MENU ); return m_expand; } inline const SELECTION_CONDITION& Condition() const { return m_condition; } inline int Order() const { return m_order; } inline void SetOrder( int aOrder ) { m_order = aOrder; } private: ENTRY_TYPE m_type; union { const TOOL_ACTION* action; CONTEXT_MENU* menu; wxMenuItem* wxItem; } m_data; ///> Condition to be fulfilled to show the entry in menu. SELECTION_CONDITION m_condition; ///> Order number, the higher the number the lower position it takes it is in the menu. int m_order; ///> CONTEXT_MENU expand flag bool m_expand; }; ///> Inserts the entry, preserving the requested order. void addEntry( ENTRY aEntry ); ///> List of all menu entries. std::list m_entries; ///> tool owning the menu TOOL_INTERACTIVE* m_tool; }; #endif /* CONDITIONAL_MENU_H */