kicad/include/tool/conditional_menu.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 CERN
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 <tool/selection_conditions.h>
#include <tool/action_menu.h>
#include <list>
#include <wx/wx.h>
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class SELECTION_TOOL;
class TOOL_ACTION;
class TOOL_INTERACTIVE;
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class CONDITIONAL_MENU : public ACTION_MENU
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{
public:
///> Constant to indicate that we do not care about an ENTRY location in the menu.
static const int ANY_ORDER = -1;
CONDITIONAL_MENU( bool isContextMenu, TOOL_INTERACTIVE* aTool );
ACTION_MENU* create() const override;
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/**
* 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,
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int aOrder = ANY_ORDER );
void AddItem( int aId, const wxString& aText, const wxString& aTooltip, BITMAP_DEF aIcon,
const SELECTION_CONDITION& aCondition, int aOrder = ANY_ORDER );
/**
* Function AddCheckItem()
*
* Adds a checked 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 check 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 AddCheckItem( const TOOL_ACTION& aAction, const SELECTION_CONDITION& aCondition,
int aOrder = ANY_ORDER );
void AddCheckItem( int aId, const wxString& aText, const wxString& aTooltip, BITMAP_DEF aIcon,
const SELECTION_CONDITION& aCondition, int aOrder = ANY_ORDER );
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/**
* Function AddMenu()
*
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* 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.
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* @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( ACTION_MENU* aMenu,
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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 Evaluate()
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*
* Updates the contents of the menu based on the supplied conditions.
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*/
void Evaluate( SELECTION& aSelection );
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/**
* Function Resolve()
*
* Updates the initial contents so that wxWidgets doesn't get its knickers tied in a knot
* over the menu being empty (mainly an issue on GTK, but also on OSX with the preferences
* and quit menu items).
*/
void Resolve();
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private:
///> Helper class to organize menu entries.
class ENTRY
{
public:
ENTRY( const TOOL_ACTION* aAction, SELECTION_CONDITION aCondition, int aOrder,
bool aCheckmark ) :
m_type( ACTION ), m_icon(nullptr),
m_condition( aCondition ),
m_order( aOrder ),
m_isCheckmarkEntry( aCheckmark )
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{
m_data.action = aAction;
}
ENTRY( ACTION_MENU* aMenu, SELECTION_CONDITION aCondition, int aOrder ) :
m_type( MENU ), m_icon(nullptr),
m_condition( aCondition ),
m_order( aOrder ),
m_isCheckmarkEntry( false )
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{
m_data.menu = aMenu;
}
ENTRY( wxMenuItem* aItem, const BITMAP_OPAQUE* aWxMenuBitmap,
SELECTION_CONDITION aCondition, int aOrder, bool aCheckmark ) :
m_type( WXITEM ), m_icon( aWxMenuBitmap ),
m_condition( aCondition ),
m_order( aOrder ),
m_isCheckmarkEntry( aCheckmark )
{
m_data.wxItem = aItem;
}
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// Separator
ENTRY( SELECTION_CONDITION aCondition, int aOrder ) :
m_type( SEPARATOR ), m_icon(nullptr),
m_condition( aCondition ),
m_order( aOrder ),
m_isCheckmarkEntry( false )
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{
}
///> Possible entry types.
enum ENTRY_TYPE {
ACTION,
MENU,
WXITEM,
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SEPARATOR
};
inline ENTRY_TYPE Type() const
{
return m_type;
}
inline const BITMAP_OPAQUE* GetIcon() const
{
return m_icon;
}
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inline const TOOL_ACTION* Action() const
{
assert( m_type == ACTION );
return m_data.action;
}
inline ACTION_MENU* Menu() const
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{
assert( m_type == MENU );
return m_data.menu;
}
inline wxMenuItem* wxItem() const
{
assert( m_type == WXITEM );
return m_data.wxItem;
}
inline bool IsCheckmarkEntry() const
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{
return m_isCheckmarkEntry;
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}
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;
const BITMAP_OPAQUE* m_icon;
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union {
const TOOL_ACTION* action;
ACTION_MENU* menu;
wxMenuItem* wxItem;
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} 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;
bool m_isCheckmarkEntry;
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};
///> Inserts the entry, preserving the requested order.
void addEntry( ENTRY aEntry );
///> Context menus include only items that resolve to true;
///> Regular menus enable only menu items that resolve to true.
bool m_isContextMenu;
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///> List of all menu entries.
std::list<ENTRY> m_entries;
};
#endif /* CONDITIONAL_MENU_H */