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kicad/common/tool/context_menu.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013-2017 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
* @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
*/
#include <tool/tool_event.h>
#include <tool/tool_manager.h>
#include <tool/tool_interactive.h>
#include <tool/context_menu.h>
#include <wx/log.h>
#include <pgm_base.h>
#include <functional>
using namespace std::placeholders;
CONTEXT_MENU::CONTEXT_MENU() :
m_titleDisplayed( false ), m_selected( -1 ), m_tool( nullptr ), m_icon( nullptr )
{
setupEvents();
}
CONTEXT_MENU::~CONTEXT_MENU()
{
// Set parent to NULL to prevent submenus from unregistering from a notexisting object
for( auto menu : m_submenus )
menu->SetParent( nullptr );
CONTEXT_MENU* parent = dynamic_cast<CONTEXT_MENU*>( GetParent() );
wxASSERT( parent || !GetParent() );
if( parent )
parent->m_submenus.remove( this );
}
/*
* Helper function.
* Assigns an icon to the wxMenuItem aMenu.
* aIcon is the icon to be assigned can be NULL.
*/
static void set_wxMenuIcon( wxMenuItem* aMenu, const BITMAP_OPAQUE* aIcon )
{
if( !Pgm().CommonSettings() )
return;
// Retrieve the global applicaton show icon option:
bool useImagesInMenus;
Pgm().CommonSettings()->Read( USE_ICONS_IN_MENUS_KEY, &useImagesInMenus );
if( aIcon && useImagesInMenus )
aMenu->SetBitmap( KiBitmap( aIcon ) );
}
void CONTEXT_MENU::SetIcon( const BITMAP_OPAQUE* aIcon )
{
m_icon = aIcon;
}
void CONTEXT_MENU::setupEvents()
{
Connect( wxEVT_MENU_HIGHLIGHT, wxMenuEventHandler( CONTEXT_MENU::onMenuEvent ), NULL, this );
Connect( wxEVT_COMMAND_MENU_SELECTED, wxMenuEventHandler( CONTEXT_MENU::onMenuEvent ), NULL, this );
}
void CONTEXT_MENU::SetTitle( const wxString& aTitle )
{
// Unfortunately wxMenu::SetTitle() does not work very well, so this is an alternative version
m_title = aTitle;
// Update the menu title
if( m_titleDisplayed )
DisplayTitle( true );
}
void CONTEXT_MENU::DisplayTitle( bool aDisplay )
{
if( ( !aDisplay || m_title.IsEmpty() ) && m_titleDisplayed )
{
// Destroy the menu entry keeping the title..
wxMenuItem* item = FindItemByPosition( 0 );
wxASSERT( item->GetItemLabelText() == GetTitle() );
Destroy( item );
// ..and separator
item = FindItemByPosition( 0 );
wxASSERT( item->IsSeparator() );
Destroy( item );
m_titleDisplayed = false;
}
else if( aDisplay && !m_title.IsEmpty() )
{
if( m_titleDisplayed )
{
// Simply update the title
FindItemByPosition( 0 )->SetItemLabel( m_title );
}
else
{
// Add a separator and a menu entry to display the title
InsertSeparator( 0 );
Insert( 0, new wxMenuItem( this, wxID_NONE, m_title, wxEmptyString, wxITEM_NORMAL ) );
if( m_icon )
set_wxMenuIcon( FindItemByPosition( 0 ), m_icon );
m_titleDisplayed = true;
}
}
}
wxMenuItem* CONTEXT_MENU::Add( const wxString& aLabel, int aId, const BITMAP_OPAQUE* aIcon )
{
#ifdef DEBUG
if( FindItem( aId ) != NULL )
wxLogWarning( wxT( "Adding more than one menu entry with the same ID may result in"
"undefined behaviour" ) );
#endif
wxMenuItem* item = new wxMenuItem( this, aId, aLabel, wxEmptyString, wxITEM_NORMAL );
set_wxMenuIcon( item, aIcon );
return Append( item );
}
wxMenuItem* CONTEXT_MENU::Add( const TOOL_ACTION& aAction )
{
/// ID numbers for tool actions need to have a value higher than ACTION_ID
const BITMAP_OPAQUE* icon = aAction.GetIcon();
wxMenuItem* item = new wxMenuItem( this, getMenuId( aAction ), aAction.GetMenuItem(),
aAction.GetDescription(), wxITEM_NORMAL );
set_wxMenuIcon( item, icon );
m_toolActions[getMenuId( aAction )] = &aAction;
wxMenuItem* i = Append( item );
return i;
}
std::list<wxMenuItem*> CONTEXT_MENU::Add( CONTEXT_MENU* aMenu, bool aExpand )
{
std::list<wxMenuItem*> items;
CONTEXT_MENU* menuCopy = aMenu->Clone();
m_submenus.push_back( menuCopy );
if( aExpand )
{
for( int i = 0; i < (int) aMenu->GetMenuItemCount(); ++i )
{
wxMenuItem* item = aMenu->FindItemByPosition( i );
items.push_back( appendCopy( item ) );
}
}
else
{
wxASSERT_MSG( !menuCopy->m_title.IsEmpty(), "Set a title for CONTEXT_MENU using SetTitle()" );
if( aMenu->m_icon )
{
wxMenuItem* newItem = new wxMenuItem( this, -1, menuCopy->m_title );
set_wxMenuIcon( newItem, aMenu->m_icon );
newItem->SetSubMenu( menuCopy );
items.push_back( Append( newItem ) );
}
else
{
items.push_back( AppendSubMenu( menuCopy, menuCopy->m_title ) );
}
}
return items;
}
void CONTEXT_MENU::Clear()
{
m_titleDisplayed = false;
for( int i = GetMenuItemCount() - 1; i >= 0; --i )
Destroy( FindItemByPosition( i ) );
m_toolActions.clear();
m_submenus.clear();
wxASSERT( GetMenuItemCount() == 0 );
}
bool CONTEXT_MENU::HasEnabledItems() const
{
bool hasEnabled = false;
auto& items = GetMenuItems();
for( auto item : items )
{
if( item->IsEnabled() && !item->IsSeparator() )
{
hasEnabled = true;
break;
}
}
return hasEnabled;
}
void CONTEXT_MENU::UpdateAll()
{
try
{
update();
}
catch( std::exception& e )
{
wxLogDebug( wxString::Format( "CONTEXT_MENU update handler exception: %s", e.what() ) );
}
if( m_tool )
updateHotKeys();
runOnSubmenus( std::bind( &CONTEXT_MENU::UpdateAll, _1 ) );
}
void CONTEXT_MENU::SetTool( TOOL_INTERACTIVE* aTool )
{
m_tool = aTool;
runOnSubmenus( std::bind( &CONTEXT_MENU::SetTool, _1, aTool ) );
}
CONTEXT_MENU* CONTEXT_MENU::Clone() const
{
CONTEXT_MENU* clone = create();
clone->Clear();
clone->copyFrom( *this );
return clone;
}
CONTEXT_MENU* CONTEXT_MENU::create() const
{
CONTEXT_MENU* menu = new CONTEXT_MENU();
wxASSERT_MSG( typeid( *this ) == typeid( *menu ),
wxString::Format( "You need to override create() method for class %s", typeid(*this).name() ) );
return menu;
}
TOOL_MANAGER* CONTEXT_MENU::getToolManager() const
{
wxASSERT( m_tool );
return m_tool ? m_tool->GetManager() : nullptr;
}
void CONTEXT_MENU::updateHotKeys()
{
TOOL_MANAGER* toolMgr = getToolManager();
for( std::map<int, const TOOL_ACTION*>::const_iterator it = m_toolActions.begin();
it != m_toolActions.end(); ++it )
{
int id = it->first;
const TOOL_ACTION& action = *it->second;
int key = toolMgr->GetHotKey( action ) & ~MD_MODIFIER_MASK;
if( key )
{
int mod = toolMgr->GetHotKey( action ) & MD_MODIFIER_MASK;
int flags = 0;
wxMenuItem* item = FindChildItem( id );
if( item )
{
flags |= ( mod & MD_ALT ) ? wxACCEL_ALT : 0;
flags |= ( mod & MD_CTRL ) ? wxACCEL_CTRL : 0;
flags |= ( mod & MD_SHIFT ) ? wxACCEL_SHIFT : 0;
if( !flags )
flags = wxACCEL_NORMAL;
wxAcceleratorEntry accel( flags, key, id, item );
item->SetAccel( &accel );
}
}
}
}
void CONTEXT_MENU::onMenuEvent( wxMenuEvent& aEvent )
{
OPT_TOOL_EVENT evt;
wxEventType type = aEvent.GetEventType();
// When the currently chosen item in the menu is changed, an update event is issued.
// For example, the selection tool can use this to dynamically highlight the current item
// from selection clarification popup.
if( type == wxEVT_MENU_HIGHLIGHT )
evt = TOOL_EVENT( TC_COMMAND, TA_CONTEXT_MENU_UPDATE, aEvent.GetId() );
// One of menu entries was selected..
else if( type == wxEVT_COMMAND_MENU_SELECTED )
{
// Store the selected position, so it can be checked by the tools
m_selected = aEvent.GetId();
CONTEXT_MENU* parent = dynamic_cast<CONTEXT_MENU*>( GetParent() );
while( parent )
{
parent->m_selected = m_selected;
parent = dynamic_cast<CONTEXT_MENU*>( parent->GetParent() );
}
// Check if there is a TOOL_ACTION for the given ID
if( m_selected >= ACTION_ID )
evt = findToolAction( m_selected );
if( !evt )
{
#ifdef __WINDOWS__
if( !evt )
{
// Try to find the submenu which holds the selected item
wxMenu* menu = nullptr;
FindItem( m_selected, &menu );
// This conditional compilation is probably not needed.
// It will be removed later, for the Kicad V 6.x version.
// But in "old" 3.0 version, the "&& menu != this" contition was added to avoid hang
// This hang is no longer encountered in wxWidgets 3.0.4 version, and this condition is no longer needed.
// And in 3.1.2, we have to remove it, as "menu != this" never happens
// ("menu != this" always happens in 3.1.1 and older!).
#if wxCHECK_VERSION(3, 1, 2)
if( menu )
#else
if( menu && menu != this )
#endif
{
CONTEXT_MENU* cxmenu = static_cast<CONTEXT_MENU*>( menu );
evt = cxmenu->eventHandler( aEvent );
}
}
#else
if( !evt )
runEventHandlers( aEvent, evt );
#endif
// Handling non-action menu entries (e.g. items in clarification list)
if( !evt )
evt = TOOL_EVENT( TC_COMMAND, TA_CONTEXT_MENU_CHOICE, aEvent.GetId() );
}
}
// forward the action/update event to the TOOL_MANAGER
// clients that don't supply a tool will have to check GetSelected() themselves
if( evt && m_tool )
{
//aEvent.StopPropagation();
m_tool->GetManager()->ProcessEvent( *evt );
}
}
void CONTEXT_MENU::runEventHandlers( const wxMenuEvent& aMenuEvent, OPT_TOOL_EVENT& aToolEvent )
{
aToolEvent = eventHandler( aMenuEvent );
if( !aToolEvent )
runOnSubmenus( std::bind( &CONTEXT_MENU::runEventHandlers, _1, aMenuEvent, aToolEvent ) );
}
void CONTEXT_MENU::runOnSubmenus( std::function<void(CONTEXT_MENU*)> aFunction )
{
try
{
std::for_each( m_submenus.begin(), m_submenus.end(), [&]( CONTEXT_MENU* m ) {
aFunction( m );
m->runOnSubmenus( aFunction );
} );
}
catch( std::exception& e )
{
wxLogDebug( wxString::Format( "CONTEXT_MENU runOnSubmenus exception: %s", e.what() ) );
}
}
OPT_TOOL_EVENT CONTEXT_MENU::findToolAction( int aId )
{
OPT_TOOL_EVENT evt;
auto findFunc = [&]( CONTEXT_MENU* m ) {
if( evt )
return;
const auto it = m->m_toolActions.find( aId );
if( it != m->m_toolActions.end() )
evt = it->second->MakeEvent();
};
findFunc( this );
if( !evt )
runOnSubmenus( findFunc );
return evt;
}
void CONTEXT_MENU::copyFrom( const CONTEXT_MENU& aMenu )
{
m_icon = aMenu.m_icon;
m_title = aMenu.m_title;
m_titleDisplayed = aMenu.m_titleDisplayed;
m_selected = -1; // aMenu.m_selected;
m_tool = aMenu.m_tool;
m_toolActions = aMenu.m_toolActions;
// Copy all menu entries
for( int i = 0; i < (int) aMenu.GetMenuItemCount(); ++i )
{
wxMenuItem* item = aMenu.FindItemByPosition( i );
appendCopy( item );
}
}
wxMenuItem* CONTEXT_MENU::appendCopy( const wxMenuItem* aSource )
{
wxMenuItem* newItem = new wxMenuItem( this, aSource->GetId(), aSource->GetItemLabel(),
aSource->GetHelp(), aSource->GetKind() );
bool useImagesInMenus;
Pgm().CommonSettings()->Read( USE_ICONS_IN_MENUS_KEY, &useImagesInMenus );
if( aSource->GetKind() == wxITEM_NORMAL && useImagesInMenus )
newItem->SetBitmap( aSource->GetBitmap() );
if( aSource->IsSubMenu() )
{
CONTEXT_MENU* menu = dynamic_cast<CONTEXT_MENU*>( aSource->GetSubMenu() );
wxASSERT_MSG( menu, "Submenus are expected to be a CONTEXT_MENU" );
if( menu )
{
CONTEXT_MENU* menuCopy = menu->Clone();
newItem->SetSubMenu( menuCopy );
m_submenus.push_back( menuCopy );
}
}
// wxMenuItem has to be added before enabling/disabling or checking
Append( newItem );
if( aSource->IsCheckable() )
newItem->Check( aSource->IsChecked() );
newItem->Enable( aSource->IsEnabled() );
return newItem;
}
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