kicad/common/kiway_player.cpp

219 lines
6.4 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* 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
*/
#include <kiway_player.h>
#include <kiway_express.h>
#include <kiway.h>
#include <id.h>
#include <macros.h>
#include <typeinfo>
#include <wx/utils.h>
#include <wx/evtloop.h>
#include <wx/socket.h>
BEGIN_EVENT_TABLE( KIWAY_PLAYER, EDA_BASE_FRAME )
EVT_KIWAY_EXPRESS( KIWAY_PLAYER::kiway_express )
EVT_MENU_RANGE( ID_LANGUAGE_CHOICE, ID_LANGUAGE_CHOICE_END, KIWAY_PLAYER::language_change )
END_EVENT_TABLE()
KIWAY_PLAYER::KIWAY_PLAYER( KIWAY* aKiway, wxWindow* aParent, FRAME_T aFrameType,
const wxString& aTitle, const wxPoint& aPos, const wxSize& aSize,
long aStyle, const wxString& aFrameName,
const EDA_IU_SCALE& aIuScale ) :
EDA_BASE_FRAME( aParent, aFrameType, aTitle, aPos, aSize, aStyle, aFrameName, aKiway,
aIuScale ),
m_modal( false ),
m_modal_loop( nullptr ),
m_modal_resultant_parent( nullptr ),
m_modal_ret_val( false ),
m_socketServer( nullptr )
{
}
KIWAY_PLAYER::~KIWAY_PLAYER() throw()
{
// socket server must be destructed before we complete
// destructing the frame or else we could crash
// as the socket server holds a reference to this frame
if( m_socketServer )
{
// ensure any event handling stops
m_socketServer->Notify( false );
delete m_socketServer;
m_socketServer = nullptr;
}
// remove active sockets as well
for( wxSocketBase* socket : m_sockets )
{
if( !socket )
continue;
// ensure any event handling stops
socket->Notify( false );
delete socket;
}
m_sockets.clear();
}
void KIWAY_PLAYER::KiwayMailIn( KIWAY_EXPRESS& aEvent )
{
// override this in derived classes.
}
bool KIWAY_PLAYER::ShowModal( wxString* aResult, wxWindow* aResultantFocusWindow )
{
wxASSERT_MSG( IsModal(), wxT( "ShowModal() shouldn't be called on non-modal frame" ) );
/*
This function has a nice interface but a necessarily unsightly implementation.
Now the implementation is encapsulated, localizing future changes.
It works in tandem with DismissModal(). But only ShowModal() is in the
vtable and therefore cross-module capable.
*/
// This is an exception safe way to zero a pointer before returning.
// Yes, even though DismissModal() clears this first normally, this is
// here in case there's an exception before the dialog is dismissed.
struct NULLER
{
void*& m_what;
NULLER( void*& aPtr ) : m_what( aPtr ) {}
~NULLER() { m_what = nullptr; } // indeed, set it to NULL on destruction
} clear_this( (void*&) m_modal_loop );
m_modal_resultant_parent = aResultantFocusWindow;
Show( true );
Raise(); // Needed on some Window managers to always display the frame
SetFocus();
{
// We have to disable all frames but the modal one.
// wxWindowDisabler does that, but it also disables all top level windows
// We do not want to disable top level windows which are child of the modal one,
// if they are enabled.
// An example is an aui toolbar which was moved
// or a dialog or another frame or miniframe opened by the modal one.
wxWindowList wlist = GetChildren();
std::vector<wxWindow*> enabledTopLevelWindows;
for( unsigned ii = 0; ii < wlist.size(); ii++ )
{
if( wlist[ii]->IsTopLevel() && wlist[ii]->IsEnabled() )
enabledTopLevelWindows.push_back( wlist[ii] );
}
// exception safe way to disable all top level windows except the modal one,
// re-enables only those that were disabled on exit
wxWindowDisabler toggle( this );
for( unsigned ii = 0; ii < enabledTopLevelWindows.size(); ii++ )
enabledTopLevelWindows[ii]->Enable( true );
WX_EVENT_LOOP event_loop;
m_modal_loop = &event_loop;
event_loop.Run();
} // End of scope for some variables.
// End nesting before setting focus below.
if( aResult )
*aResult = m_modal_string;
if( aResultantFocusWindow )
{
aResultantFocusWindow->Raise();
// have the final say, after wxWindowDisabler reenables my parent and
// the events settle down, set the focus
wxSafeYield();
aResultantFocusWindow->SetFocus();
}
return m_modal_ret_val;
}
bool KIWAY_PLAYER::Destroy()
{
Kiway().PlayerDidClose( GetFrameType() );
return EDA_BASE_FRAME::Destroy();
}
bool KIWAY_PLAYER::IsDismissed()
{
return !m_modal_loop;
}
void KIWAY_PLAYER::DismissModal( bool aRetVal, const wxString& aResult )
{
m_modal_ret_val = aRetVal;
m_modal_string = aResult;
if( m_modal_loop )
{
m_modal_loop->Exit();
m_modal_loop = nullptr; // this marks it as dismissed.
}
Show( false );
}
void KIWAY_PLAYER::kiway_express( KIWAY_EXPRESS& aEvent )
{
// logging support
KiwayMailIn( aEvent ); // call the virtual, override in derived.
}
void KIWAY_PLAYER::language_change( wxCommandEvent& event )
{
int id = event.GetId();
// tell all the KIWAY_PLAYERs about the language change.
Kiway().SetLanguage( id );
}
// LocalWords: ShowModal DismissModal vtable wxWindowDisabler aui
// LocalWords: miniframe reenables KIWAY PLAYERs