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) 2013-2015 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>
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#include <boost/bind.hpp>
#include <cassert>
CONTEXT_MENU::CONTEXT_MENU() :
m_titleSet( false ), m_selected( -1 ), m_tool( NULL ), m_parent( NULL ), m_icon( NULL ),
m_menu_handler( CONTEXT_MENU::menuHandlerStub ),
m_update_handler( CONTEXT_MENU::updateHandlerStub )
{
setupEvents();
}
CONTEXT_MENU::CONTEXT_MENU( const CONTEXT_MENU& aMenu )
{
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copyFrom( aMenu );
setupEvents();
}
CONTEXT_MENU::~CONTEXT_MENU()
{
// Set parent to NULL to prevent submenus from unregistering from a notexisting object
for( std::list<CONTEXT_MENU*>::iterator it = m_submenus.begin(); it != m_submenus.end(); ++it )
(*it)->m_parent = NULL;
if( m_parent )
m_parent->m_submenus.remove( this );
}
CONTEXT_MENU& CONTEXT_MENU::operator=( const CONTEXT_MENU& aMenu )
{
Clear();
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copyFrom( aMenu );
return *this;
}
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 )
{
// TODO handle an empty string (remove title and separator)
// Unfortunately wxMenu::SetTitle() does nothing.. (at least wxGTK)
if( m_titleSet )
{
FindItemByPosition( 0 )->SetItemLabel( aTitle );
}
else
{
InsertSeparator( 0 );
Insert( 0, new wxMenuItem( this, wxID_NONE, aTitle, wxEmptyString, wxITEM_NORMAL ) );
m_titleSet = 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
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wxMenuItem* item = new wxMenuItem( this, aId, aLabel, wxEmptyString, wxITEM_NORMAL );
if( aIcon )
item->SetBitmap( KiBitmap( 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
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const BITMAP_OPAQUE* icon = aAction.GetIcon();
wxMenuItem* item = new wxMenuItem( this, getMenuId( aAction ), aAction.GetMenuItem(),
aAction.GetDescription(), wxITEM_NORMAL );
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if( icon )
item->SetBitmap( KiBitmap( icon ) );
m_toolActions[getMenuId( aAction )] = &aAction;
return Append( item );
}
std::list<wxMenuItem*> CONTEXT_MENU::Add( CONTEXT_MENU* aMenu, const wxString& aLabel, bool aExpand )
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{
std::list<wxMenuItem*> items;
CONTEXT_MENU* menuCopy = new CONTEXT_MENU( *aMenu );
m_submenus.push_back( menuCopy );
menuCopy->m_parent = this;
if( aExpand )
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{
for( int i = 0; i < (int) aMenu->GetMenuItemCount(); ++i )
{
wxMenuItem* item = aMenu->FindItemByPosition( i );
items.push_back( appendCopy( item ) );
}
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}
else
{
if( aMenu->m_icon )
{
wxMenuItem* newItem = new wxMenuItem( this, -1, aLabel, wxEmptyString, wxITEM_NORMAL );
newItem->SetBitmap( KiBitmap( aMenu->m_icon ) );
newItem->SetSubMenu( menuCopy );
items.push_back( Append( newItem ) );
}
else
{
items.push_back( AppendSubMenu( menuCopy, aLabel ) );
}
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}
return items;
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}
void CONTEXT_MENU::Clear()
{
m_titleSet = false;
for( int i = GetMenuItemCount() - 1; i >= 0; --i )
Destroy( FindItemByPosition( i ) );
m_toolActions.clear();
m_submenus.clear();
m_parent = NULL;
assert( GetMenuItemCount() == 0 );
}
void CONTEXT_MENU::UpdateAll()
{
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try
{
m_update_handler();
}
catch( std::exception& e )
{
std::cerr << "CONTEXT_MENU error running update handler: " << e.what() << std::endl;
}
if( m_tool )
updateHotKeys();
runOnSubmenus( boost::bind( &CONTEXT_MENU::UpdateAll, _1 ) );
}
void CONTEXT_MENU::SetTool( TOOL_INTERACTIVE* aTool )
{
m_tool = aTool;
runOnSubmenus( boost::bind( &CONTEXT_MENU::SetTool, _1, aTool ) );
}
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TOOL_MANAGER* CONTEXT_MENU::getToolManager()
{
assert( m_tool );
return m_tool->GetManager();
}
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 )
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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
m_selected = aEvent.GetId();
// Check if there is a TOOL_ACTION for the given ID
if( m_toolActions.count( aEvent.GetId() ) == 1 )
{
evt = m_toolActions[aEvent.GetId()]->MakeEvent();
}
else
{
runEventHandlers( aEvent, evt );
// Under Linux, every submenu can have a separate event handler, under
// Windows all submenus are handled by the main menu.
#ifdef __WINDOWS__
if( !evt )
{
// Try to find the submenu which holds the selected item
wxMenu* menu = NULL;
FindItem( m_selected, &menu );
if( menu && menu != this )
{
menu->ProcessEvent( aEvent );
return;
}
}
#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() );
}
}
assert( m_tool ); // without tool & tool manager we cannot handle events
// forward the action/update event to the TOOL_MANAGER
if( evt && m_tool )
m_tool->GetManager()->ProcessEvent( *evt );
}
void CONTEXT_MENU::runEventHandlers( const wxMenuEvent& aMenuEvent, OPT_TOOL_EVENT& aToolEvent )
{
aToolEvent = m_menu_handler( aMenuEvent );
if( !aToolEvent )
runOnSubmenus( boost::bind( &CONTEXT_MENU::runEventHandlers, _1, aMenuEvent, aToolEvent ) );
}
void CONTEXT_MENU::runOnSubmenus( boost::function<void(CONTEXT_MENU*)> aFunction )
{
try
{
std::for_each( m_submenus.begin(), m_submenus.end(), aFunction );
}
catch( std::exception& e )
{
std::cerr << "CONTEXT_MENU runOnSubmenus error: " << e.what() << std::endl;
}
}
wxMenuItem* CONTEXT_MENU::appendCopy( const wxMenuItem* aSource )
{
wxMenuItem* newItem = new wxMenuItem( this, aSource->GetId(), aSource->GetItemLabel(),
aSource->GetHelp(), aSource->GetKind() );
if( aSource->GetKind() == wxITEM_NORMAL )
newItem->SetBitmap( aSource->GetBitmap() );
if( aSource->IsSubMenu() )
{
#ifdef DEBUG
// Submenus of a CONTEXT_MENU are supposed to be CONTEXT_MENUs as well
assert( dynamic_cast<CONTEXT_MENU*>( aSource->GetSubMenu() ) );
#endif
CONTEXT_MENU* menu = new CONTEXT_MENU( static_cast<const CONTEXT_MENU&>( *aSource->GetSubMenu() ) );
newItem->SetSubMenu( menu );
Append( newItem );
m_submenus.push_back( menu );
menu->m_parent = this;
}
else
{
Append( newItem );
newItem->SetKind( aSource->GetKind() );
newItem->SetHelp( aSource->GetHelp() );
newItem->Enable( aSource->IsEnabled() );
if( aSource->IsCheckable() )
newItem->Check( aSource->IsChecked() );
}
return newItem;
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}
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void CONTEXT_MENU::copyFrom( const CONTEXT_MENU& aMenu )
{
m_icon = aMenu.m_icon;
m_titleSet = aMenu.m_titleSet;
m_selected = -1; // aMenu.m_selected;
m_tool = aMenu.m_tool;
m_toolActions = aMenu.m_toolActions;
m_parent = NULL; // aMenu.m_parent;
m_menu_handler = aMenu.m_menu_handler;
m_update_handler = aMenu.m_update_handler;
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// Copy all the menu entries
for( int i = 0; i < (int) aMenu.GetMenuItemCount(); ++i )
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{
wxMenuItem* item = aMenu.FindItemByPosition( i );
appendCopy( item );
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}
}
OPT_TOOL_EVENT CONTEXT_MENU::menuHandlerStub( const wxMenuEvent& )
{
return boost::none;
}
void CONTEXT_MENU::updateHandlerStub()
{
}