2060 lines
64 KiB
C++
2060 lines
64 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/event.cpp
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// Purpose: Event classes
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/event.h"
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#include "wx/eventfilter.h"
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#include "wx/evtloop.h"
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#ifndef WX_PRECOMP
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#include "wx/list.h"
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#include "wx/log.h"
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#include "wx/app.h"
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#include "wx/utils.h"
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#include "wx/stopwatch.h"
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#include "wx/module.h"
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#if wxUSE_GUI
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#include "wx/window.h"
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#include "wx/control.h"
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#include "wx/dc.h"
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#include "wx/spinbutt.h"
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#include "wx/textentry.h"
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#include "wx/validate.h"
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#endif // wxUSE_GUI
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#endif
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#include "wx/thread.h"
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#if wxUSE_BASE
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#include "wx/scopedptr.h"
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wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr)
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wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr)
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#endif // wxUSE_BASE
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// ----------------------------------------------------------------------------
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// wxWin macros
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// ----------------------------------------------------------------------------
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#if wxUSE_BASE
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wxIMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject);
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wxIMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject);
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wxIMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxThreadEvent, wxEvent);
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#endif // wxUSE_BASE
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#if wxUSE_GUI
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wxIMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxDPIChangedEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxGestureEvent, wxEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxPanGestureEvent, wxGestureEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxZoomGestureEvent, wxGestureEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxRotateGestureEvent, wxGestureEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxTwoFingerTapEvent, wxGestureEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxLongPressEvent, wxGestureEvent);
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wxIMPLEMENT_DYNAMIC_CLASS(wxPressAndTapEvent, wxGestureEvent);
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#endif // wxUSE_GUI
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#if wxUSE_BASE
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const wxEventTable *wxEvtHandler::GetEventTable() const
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{ return &wxEvtHandler::sm_eventTable; }
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const wxEventTable wxEvtHandler::sm_eventTable =
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{ (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
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wxEventHashTable &wxEvtHandler::GetEventHashTable() const
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{ return wxEvtHandler::sm_eventHashTable; }
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wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
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const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
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{ wxDECLARE_EVENT_TABLE_TERMINATOR() };
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// wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
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// leaked, so we need to manually clean up all event tables before checking for
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// the memory leaks when using it, however this breaks re-initializing the
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// library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
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// event tables won't be rebuilt the next time, so disable this by default
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#if wxUSE_MEMORY_TRACING
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class wxEventTableEntryModule: public wxModule
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{
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public:
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wxEventTableEntryModule() { }
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virtual bool OnInit() wxOVERRIDE { return true; }
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virtual void OnExit() wxOVERRIDE { wxEventHashTable::ClearAll(); }
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wxDECLARE_DYNAMIC_CLASS(wxEventTableEntryModule);
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};
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wxIMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule);
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#endif // wxUSE_MEMORY_TRACING
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// ----------------------------------------------------------------------------
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// global variables
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// ----------------------------------------------------------------------------
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// common event types are defined here, other event types are defined by the
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// components which use them
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const wxEventType wxEVT_FIRST = 10000;
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const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
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const wxEventType wxEVT_NULL = wxNewEventType();
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wxDEFINE_EVENT( wxEVT_IDLE, wxIdleEvent );
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// Thread and asynchronous call events
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wxDEFINE_EVENT( wxEVT_THREAD, wxThreadEvent );
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wxDEFINE_EVENT( wxEVT_ASYNC_METHOD_CALL, wxAsyncMethodCallEvent );
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#endif // wxUSE_BASE
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#if wxUSE_GUI
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wxDEFINE_EVENT( wxEVT_BUTTON, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_CHECKBOX, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_CHOICE, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_LISTBOX, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_LISTBOX_DCLICK, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_CHECKLISTBOX, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_MENU, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_SLIDER, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_RADIOBOX, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_RADIOBUTTON, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLBAR, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_VLBOX, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMBOBOX, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_TOOL_RCLICKED, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_TOOL_ENTER, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_TOOL_DROPDOWN, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMBOBOX_DROPDOWN, wxCommandEvent);
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wxDEFINE_EVENT( wxEVT_COMBOBOX_CLOSEUP, wxCommandEvent);
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// Mouse event types
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wxDEFINE_EVENT( wxEVT_LEFT_DOWN, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_LEFT_UP, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_MIDDLE_DOWN, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_MIDDLE_UP, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_RIGHT_DOWN, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_RIGHT_UP, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_MOTION, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_ENTER_WINDOW, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_LEAVE_WINDOW, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_LEFT_DCLICK, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_MIDDLE_DCLICK, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_RIGHT_DCLICK, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_SET_FOCUS, wxFocusEvent );
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wxDEFINE_EVENT( wxEVT_KILL_FOCUS, wxFocusEvent );
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wxDEFINE_EVENT( wxEVT_CHILD_FOCUS, wxChildFocusEvent );
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wxDEFINE_EVENT( wxEVT_MOUSEWHEEL, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_AUX1_DOWN, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_AUX1_UP, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_AUX1_DCLICK, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_AUX2_DOWN, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_AUX2_UP, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_AUX2_DCLICK, wxMouseEvent );
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wxDEFINE_EVENT( wxEVT_MAGNIFY, wxMouseEvent );
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// Character input event type
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wxDEFINE_EVENT( wxEVT_CHAR, wxKeyEvent );
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wxDEFINE_EVENT( wxEVT_AFTER_CHAR, wxKeyEvent );
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wxDEFINE_EVENT( wxEVT_CHAR_HOOK, wxKeyEvent );
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wxDEFINE_EVENT( wxEVT_NAVIGATION_KEY, wxNavigationKeyEvent );
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wxDEFINE_EVENT( wxEVT_KEY_DOWN, wxKeyEvent );
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wxDEFINE_EVENT( wxEVT_KEY_UP, wxKeyEvent );
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#if wxUSE_HOTKEY
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wxDEFINE_EVENT( wxEVT_HOTKEY, wxKeyEvent );
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#endif
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// Set cursor event
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wxDEFINE_EVENT( wxEVT_SET_CURSOR, wxSetCursorEvent );
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// wxScrollbar and wxSlider event identifiers
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wxDEFINE_EVENT( wxEVT_SCROLL_TOP, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_BOTTOM, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_LINEUP, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_LINEDOWN, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_PAGEUP, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_PAGEDOWN, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_THUMBTRACK, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_THUMBRELEASE, wxScrollEvent );
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wxDEFINE_EVENT( wxEVT_SCROLL_CHANGED, wxScrollEvent );
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// Due to a bug in older wx versions, wxSpinEvents were being sent with type of
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// wxEVT_SCROLL_LINEUP, wxEVT_SCROLL_LINEDOWN and wxEVT_SCROLL_THUMBTRACK. But
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// with the type-safe events in place, these event types are associated with
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// wxScrollEvent. To allow handling of spin events, new event types have been
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// defined in spinbutt.h/spinnbuttcmn.cpp. To maintain backward compatibility
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// the spin event types are being initialized with the scroll event types.
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#if wxUSE_SPINBTN
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wxDEFINE_EVENT_ALIAS( wxEVT_SPIN_UP, wxSpinEvent, wxEVT_SCROLL_LINEUP );
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wxDEFINE_EVENT_ALIAS( wxEVT_SPIN_DOWN, wxSpinEvent, wxEVT_SCROLL_LINEDOWN );
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wxDEFINE_EVENT_ALIAS( wxEVT_SPIN, wxSpinEvent, wxEVT_SCROLL_THUMBTRACK );
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#endif // wxUSE_SPINBTN
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// Scroll events from wxWindow
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_TOP, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_BOTTOM, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_LINEUP, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_LINEDOWN, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_PAGEUP, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_PAGEDOWN, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_THUMBTRACK, wxScrollWinEvent );
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wxDEFINE_EVENT( wxEVT_SCROLLWIN_THUMBRELEASE, wxScrollWinEvent );
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// Gesture events
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wxDEFINE_EVENT( wxEVT_GESTURE_PAN, wxPanGestureEvent );
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wxDEFINE_EVENT( wxEVT_GESTURE_ZOOM, wxZoomGestureEvent );
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wxDEFINE_EVENT( wxEVT_GESTURE_ROTATE, wxRotateGestureEvent );
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wxDEFINE_EVENT( wxEVT_TWO_FINGER_TAP, wxTwoFingerTapEvent );
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wxDEFINE_EVENT( wxEVT_LONG_PRESS, wxLongPressEvent );
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wxDEFINE_EVENT( wxEVT_PRESS_AND_TAP, wxPressAndTapEvent );
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// System events
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wxDEFINE_EVENT( wxEVT_SIZE, wxSizeEvent );
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wxDEFINE_EVENT( wxEVT_SIZING, wxSizeEvent );
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wxDEFINE_EVENT( wxEVT_MOVE, wxMoveEvent );
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wxDEFINE_EVENT( wxEVT_MOVING, wxMoveEvent );
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wxDEFINE_EVENT( wxEVT_MOVE_START, wxMoveEvent );
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wxDEFINE_EVENT( wxEVT_MOVE_END, wxMoveEvent );
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wxDEFINE_EVENT( wxEVT_CLOSE_WINDOW, wxCloseEvent );
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wxDEFINE_EVENT( wxEVT_END_SESSION, wxCloseEvent );
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wxDEFINE_EVENT( wxEVT_QUERY_END_SESSION, wxCloseEvent );
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wxDEFINE_EVENT( wxEVT_HIBERNATE, wxActivateEvent );
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wxDEFINE_EVENT( wxEVT_ACTIVATE_APP, wxActivateEvent );
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wxDEFINE_EVENT( wxEVT_ACTIVATE, wxActivateEvent );
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wxDEFINE_EVENT( wxEVT_CREATE, wxWindowCreateEvent );
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wxDEFINE_EVENT( wxEVT_DESTROY, wxWindowDestroyEvent );
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wxDEFINE_EVENT( wxEVT_SHOW, wxShowEvent );
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wxDEFINE_EVENT( wxEVT_ICONIZE, wxIconizeEvent );
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wxDEFINE_EVENT( wxEVT_MAXIMIZE, wxMaximizeEvent );
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wxDEFINE_EVENT( wxEVT_MOUSE_CAPTURE_CHANGED, wxMouseCaptureChangedEvent );
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wxDEFINE_EVENT( wxEVT_MOUSE_CAPTURE_LOST, wxMouseCaptureLostEvent );
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wxDEFINE_EVENT( wxEVT_PAINT, wxPaintEvent );
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wxDEFINE_EVENT( wxEVT_ERASE_BACKGROUND, wxEraseEvent );
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wxDEFINE_EVENT( wxEVT_NC_PAINT, wxNcPaintEvent );
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wxDEFINE_EVENT( wxEVT_MENU_OPEN, wxMenuEvent );
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wxDEFINE_EVENT( wxEVT_MENU_CLOSE, wxMenuEvent );
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wxDEFINE_EVENT( wxEVT_MENU_HIGHLIGHT, wxMenuEvent );
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wxDEFINE_EVENT( wxEVT_CONTEXT_MENU, wxContextMenuEvent );
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wxDEFINE_EVENT( wxEVT_SYS_COLOUR_CHANGED, wxSysColourChangedEvent );
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wxDEFINE_EVENT( wxEVT_DISPLAY_CHANGED, wxDisplayChangedEvent );
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wxDEFINE_EVENT( wxEVT_DPI_CHANGED, wxDPIChangedEvent );
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wxDEFINE_EVENT( wxEVT_QUERY_NEW_PALETTE, wxQueryNewPaletteEvent );
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wxDEFINE_EVENT( wxEVT_PALETTE_CHANGED, wxPaletteChangedEvent );
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wxDEFINE_EVENT( wxEVT_JOY_BUTTON_DOWN, wxJoystickEvent );
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wxDEFINE_EVENT( wxEVT_JOY_BUTTON_UP, wxJoystickEvent );
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wxDEFINE_EVENT( wxEVT_JOY_MOVE, wxJoystickEvent );
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wxDEFINE_EVENT( wxEVT_JOY_ZMOVE, wxJoystickEvent );
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wxDEFINE_EVENT( wxEVT_DROP_FILES, wxDropFilesEvent );
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wxDEFINE_EVENT( wxEVT_INIT_DIALOG, wxInitDialogEvent );
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wxDEFINE_EVENT( wxEVT_UPDATE_UI, wxUpdateUIEvent );
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// Clipboard events
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wxDEFINE_EVENT( wxEVT_TEXT_COPY, wxClipboardTextEvent );
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wxDEFINE_EVENT( wxEVT_TEXT_CUT, wxClipboardTextEvent );
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wxDEFINE_EVENT( wxEVT_TEXT_PASTE, wxClipboardTextEvent );
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// Generic command events
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// Note: a click is a higher-level event than button down/up
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wxDEFINE_EVENT( wxEVT_COMMAND_LEFT_CLICK, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMMAND_LEFT_DCLICK, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMMAND_RIGHT_CLICK, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMMAND_RIGHT_DCLICK, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMMAND_SET_FOCUS, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMMAND_KILL_FOCUS, wxCommandEvent );
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wxDEFINE_EVENT( wxEVT_COMMAND_ENTER, wxCommandEvent );
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// Help events
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wxDEFINE_EVENT( wxEVT_HELP, wxHelpEvent );
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wxDEFINE_EVENT( wxEVT_DETAILED_HELP, wxHelpEvent );
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#endif // wxUSE_GUI
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#if wxUSE_BASE
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wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// event initialization
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// ----------------------------------------------------------------------------
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int wxNewEventType()
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{
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// MT-FIXME
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static int s_lastUsedEventType = wxEVT_FIRST;
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return s_lastUsedEventType++;
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}
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// ----------------------------------------------------------------------------
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// wxEventFunctor
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// ----------------------------------------------------------------------------
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wxEventFunctor::~wxEventFunctor()
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{
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}
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// ----------------------------------------------------------------------------
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// wxEvent
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// ----------------------------------------------------------------------------
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/*
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* General wxWidgets events, covering all interesting things that might happen
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* (button clicking, resizing, setting text in widgets, etc.).
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*
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* For each completely new event type, derive a new event class.
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*
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*/
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wxEvent::wxEvent(int theId, wxEventType commandType)
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: m_eventType(commandType)
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{
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m_eventObject = NULL;
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m_timeStamp = 0;
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m_id = theId;
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m_skipped = false;
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m_callbackUserData = NULL;
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m_handlerToProcessOnlyIn = NULL;
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m_isCommandEvent = false;
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m_propagationLevel = wxEVENT_PROPAGATE_NONE;
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m_propagatedFrom = NULL;
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m_wasProcessed = false;
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m_willBeProcessedAgain = false;
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}
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wxEvent::wxEvent(const wxEvent& src)
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: wxObject(src)
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, m_eventObject(src.m_eventObject)
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, m_eventType(src.m_eventType)
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, m_timeStamp(src.m_timeStamp)
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, m_id(src.m_id)
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, m_callbackUserData(src.m_callbackUserData)
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, m_handlerToProcessOnlyIn(NULL)
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, m_propagationLevel(src.m_propagationLevel)
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, m_propagatedFrom(NULL)
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, m_skipped(src.m_skipped)
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, m_isCommandEvent(src.m_isCommandEvent)
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, m_wasProcessed(false)
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, m_willBeProcessedAgain(false)
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{
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}
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wxEvent& wxEvent::operator=(const wxEvent& src)
|
|
{
|
|
wxObject::operator=(src);
|
|
|
|
m_eventObject = src.m_eventObject;
|
|
m_eventType = src.m_eventType;
|
|
m_timeStamp = src.m_timeStamp;
|
|
m_id = src.m_id;
|
|
m_callbackUserData = src.m_callbackUserData;
|
|
m_handlerToProcessOnlyIn = NULL;
|
|
m_propagationLevel = src.m_propagationLevel;
|
|
m_propagatedFrom = NULL;
|
|
m_skipped = src.m_skipped;
|
|
m_isCommandEvent = src.m_isCommandEvent;
|
|
|
|
// don't change m_wasProcessed
|
|
|
|
// While the original again could be passed to another handler, this one
|
|
// isn't going to be processed anywhere else by default.
|
|
m_willBeProcessedAgain = false;
|
|
|
|
return *this;
|
|
}
|
|
|
|
#endif // wxUSE_BASE
|
|
|
|
#if wxUSE_GUI
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxCommandEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxString wxCommandEvent::GetString() const
|
|
{
|
|
// This is part of the hack retrieving the event string from the control
|
|
// itself only when/if it's really needed to avoid copying potentially huge
|
|
// strings coming from multiline text controls.
|
|
if (m_eventType == wxEVT_TEXT && m_eventObject)
|
|
{
|
|
// Only windows generate wxEVT_TEXT events, so this cast should really
|
|
// succeed, but err on the side of caution just in case somebody
|
|
// created a bogus event of this type.
|
|
if ( wxWindow* const w = wxDynamicCast(m_eventObject, wxWindow) )
|
|
{
|
|
if ( const wxTextEntry* const entry = w->WXGetTextEntry() )
|
|
return entry->GetValue();
|
|
}
|
|
}
|
|
|
|
return m_cmdString;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxUpdateUIEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if wxUSE_LONGLONG
|
|
wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
|
|
#endif
|
|
|
|
long wxUpdateUIEvent::sm_updateInterval = 0;
|
|
|
|
wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
|
|
|
|
// Can we update?
|
|
bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
|
|
{
|
|
// Don't update if we've switched global updating off
|
|
// and this window doesn't support updates.
|
|
if (win &&
|
|
(GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
|
|
((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
|
|
return false;
|
|
|
|
// Don't update children of the hidden windows: this is useless as any
|
|
// change to their state won't be seen by the user anyhow. Notice that this
|
|
// argument doesn't apply to the hidden windows (with visible parent)
|
|
// themselves as they could be shown by their EVT_UPDATE_UI handler.
|
|
if ( win->GetParent() && !win->GetParent()->IsShownOnScreen() )
|
|
return false;
|
|
|
|
if (sm_updateInterval == -1)
|
|
return false;
|
|
|
|
if (sm_updateInterval == 0)
|
|
return true;
|
|
|
|
#if wxUSE_STOPWATCH && wxUSE_LONGLONG
|
|
wxLongLong now = wxGetLocalTimeMillis();
|
|
if (now > (sm_lastUpdate + sm_updateInterval))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
#else
|
|
// If we don't have wxStopWatch or wxLongLong, we
|
|
// should err on the safe side and update now anyway.
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
// Reset the update time to provide a delay until the next
|
|
// time we should update
|
|
void wxUpdateUIEvent::ResetUpdateTime()
|
|
{
|
|
#if wxUSE_STOPWATCH && wxUSE_LONGLONG
|
|
if (sm_updateInterval > 0)
|
|
{
|
|
wxLongLong now = wxGetLocalTimeMillis();
|
|
if (now > (sm_lastUpdate + sm_updateInterval))
|
|
{
|
|
sm_lastUpdate = now;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxScrollEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxScrollEvent::wxScrollEvent(wxEventType commandType,
|
|
int id,
|
|
int pos,
|
|
int orient)
|
|
: wxCommandEvent(commandType, id)
|
|
{
|
|
m_extraLong = orient;
|
|
m_commandInt = pos;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxScrollWinEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
|
|
int pos,
|
|
int orient)
|
|
{
|
|
m_eventType = commandType;
|
|
m_extraLong = orient;
|
|
m_commandInt = pos;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxMouseEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxMouseEvent::wxMouseEvent(wxEventType commandType)
|
|
{
|
|
m_eventType = commandType;
|
|
|
|
m_x = 0;
|
|
m_y = 0;
|
|
|
|
m_leftDown = false;
|
|
m_middleDown = false;
|
|
m_rightDown = false;
|
|
m_aux1Down = false;
|
|
m_aux2Down = false;
|
|
|
|
m_clickCount = -1;
|
|
|
|
m_wheelAxis = wxMOUSE_WHEEL_VERTICAL;
|
|
m_wheelRotation = 0;
|
|
m_wheelDelta = 0;
|
|
m_wheelInverted = false;
|
|
m_linesPerAction = 0;
|
|
m_columnsPerAction = 0;
|
|
m_magnification = 0.0f;
|
|
}
|
|
|
|
void wxMouseEvent::Assign(const wxMouseEvent& event)
|
|
{
|
|
wxEvent::operator=(event);
|
|
|
|
// Borland C++ 5.82 doesn't compile an explicit call to an implicitly
|
|
// defined operator=() so need to do it this way:
|
|
*static_cast<wxMouseState *>(this) = event;
|
|
|
|
m_x = event.m_x;
|
|
m_y = event.m_y;
|
|
|
|
m_leftDown = event.m_leftDown;
|
|
m_middleDown = event.m_middleDown;
|
|
m_rightDown = event.m_rightDown;
|
|
m_aux1Down = event.m_aux1Down;
|
|
m_aux2Down = event.m_aux2Down;
|
|
|
|
m_wheelRotation = event.m_wheelRotation;
|
|
m_wheelDelta = event.m_wheelDelta;
|
|
m_wheelInverted = event.m_wheelInverted;
|
|
m_linesPerAction = event.m_linesPerAction;
|
|
m_columnsPerAction = event.m_columnsPerAction;
|
|
m_wheelAxis = event.m_wheelAxis;
|
|
|
|
m_magnification = event.m_magnification;
|
|
}
|
|
|
|
// return true if was a button dclick event
|
|
bool wxMouseEvent::ButtonDClick(int but) const
|
|
{
|
|
switch (but)
|
|
{
|
|
default:
|
|
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
|
|
wxFALLTHROUGH;
|
|
|
|
case wxMOUSE_BTN_ANY:
|
|
return (LeftDClick() || MiddleDClick() || RightDClick() ||
|
|
Aux1DClick() || Aux2DClick());
|
|
|
|
case wxMOUSE_BTN_LEFT:
|
|
return LeftDClick();
|
|
|
|
case wxMOUSE_BTN_MIDDLE:
|
|
return MiddleDClick();
|
|
|
|
case wxMOUSE_BTN_RIGHT:
|
|
return RightDClick();
|
|
|
|
case wxMOUSE_BTN_AUX1:
|
|
return Aux1DClick();
|
|
|
|
case wxMOUSE_BTN_AUX2:
|
|
return Aux2DClick();
|
|
}
|
|
}
|
|
|
|
// return true if was a button down event
|
|
bool wxMouseEvent::ButtonDown(int but) const
|
|
{
|
|
switch (but)
|
|
{
|
|
default:
|
|
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
|
|
wxFALLTHROUGH;
|
|
|
|
case wxMOUSE_BTN_ANY:
|
|
return (LeftDown() || MiddleDown() || RightDown() ||
|
|
Aux1Down() || Aux2Down());
|
|
|
|
case wxMOUSE_BTN_LEFT:
|
|
return LeftDown();
|
|
|
|
case wxMOUSE_BTN_MIDDLE:
|
|
return MiddleDown();
|
|
|
|
case wxMOUSE_BTN_RIGHT:
|
|
return RightDown();
|
|
|
|
case wxMOUSE_BTN_AUX1:
|
|
return Aux1Down();
|
|
|
|
case wxMOUSE_BTN_AUX2:
|
|
return Aux2Down();
|
|
}
|
|
}
|
|
|
|
// return true if was a button up event
|
|
bool wxMouseEvent::ButtonUp(int but) const
|
|
{
|
|
switch (but)
|
|
{
|
|
default:
|
|
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
|
|
wxFALLTHROUGH;
|
|
|
|
case wxMOUSE_BTN_ANY:
|
|
return (LeftUp() || MiddleUp() || RightUp() ||
|
|
Aux1Up() || Aux2Up());
|
|
|
|
case wxMOUSE_BTN_LEFT:
|
|
return LeftUp();
|
|
|
|
case wxMOUSE_BTN_MIDDLE:
|
|
return MiddleUp();
|
|
|
|
case wxMOUSE_BTN_RIGHT:
|
|
return RightUp();
|
|
|
|
case wxMOUSE_BTN_AUX1:
|
|
return Aux1Up();
|
|
|
|
case wxMOUSE_BTN_AUX2:
|
|
return Aux2Up();
|
|
}
|
|
}
|
|
|
|
// return true if the given button is currently changing state
|
|
bool wxMouseEvent::Button(int but) const
|
|
{
|
|
switch (but)
|
|
{
|
|
default:
|
|
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
|
|
wxFALLTHROUGH;
|
|
|
|
case wxMOUSE_BTN_ANY:
|
|
return ButtonUp(wxMOUSE_BTN_ANY) ||
|
|
ButtonDown(wxMOUSE_BTN_ANY) ||
|
|
ButtonDClick(wxMOUSE_BTN_ANY);
|
|
|
|
case wxMOUSE_BTN_LEFT:
|
|
return LeftDown() || LeftUp() || LeftDClick();
|
|
|
|
case wxMOUSE_BTN_MIDDLE:
|
|
return MiddleDown() || MiddleUp() || MiddleDClick();
|
|
|
|
case wxMOUSE_BTN_RIGHT:
|
|
return RightDown() || RightUp() || RightDClick();
|
|
|
|
case wxMOUSE_BTN_AUX1:
|
|
return Aux1Down() || Aux1Up() || Aux1DClick();
|
|
|
|
case wxMOUSE_BTN_AUX2:
|
|
return Aux2Down() || Aux2Up() || Aux2DClick();
|
|
}
|
|
}
|
|
|
|
int wxMouseEvent::GetButton() const
|
|
{
|
|
for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
|
|
{
|
|
if ( Button(i) )
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return wxMOUSE_BTN_NONE;
|
|
}
|
|
|
|
// Find the logical position of the event given the DC
|
|
wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
|
|
{
|
|
wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
|
|
return pt;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxKeyEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxKeyEvent::wxKeyEvent(wxEventType type)
|
|
#if wxUSE_UNICODE
|
|
: m_uniChar(WXK_NONE)
|
|
#endif
|
|
{
|
|
m_eventType = type;
|
|
m_keyCode = WXK_NONE;
|
|
|
|
m_x =
|
|
m_y = wxDefaultCoord;
|
|
m_hasPosition = false;
|
|
|
|
InitPropagation();
|
|
}
|
|
|
|
wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
|
|
: wxEvent(evt),
|
|
wxKeyboardState(evt)
|
|
{
|
|
DoAssignMembers(evt);
|
|
|
|
InitPropagation();
|
|
}
|
|
|
|
wxKeyEvent::wxKeyEvent(wxEventType eventType, const wxKeyEvent& evt)
|
|
: wxEvent(evt),
|
|
wxKeyboardState(evt)
|
|
{
|
|
DoAssignMembers(evt);
|
|
|
|
m_eventType = eventType;
|
|
|
|
InitPropagation();
|
|
}
|
|
|
|
wxKeyEvent& wxKeyEvent::operator=(const wxKeyEvent& evt)
|
|
{
|
|
if ( &evt != this )
|
|
{
|
|
wxEvent::operator=(evt);
|
|
|
|
// Borland C++ 5.82 doesn't compile an explicit call to an
|
|
// implicitly defined operator=() so need to do it this way:
|
|
*static_cast<wxKeyboardState *>(this) = evt;
|
|
|
|
DoAssignMembers(evt);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
void wxKeyEvent::InitPositionIfNecessary() const
|
|
{
|
|
if ( m_hasPosition )
|
|
return;
|
|
|
|
// We're const because we're called from const Get[XY]() methods but we
|
|
// need to update the "cached" values.
|
|
wxKeyEvent& self = const_cast<wxKeyEvent&>(*this);
|
|
self.m_hasPosition = true;
|
|
|
|
// The only position we can possibly associate with the keyboard event on
|
|
// the platforms where it doesn't carry it already is the mouse position.
|
|
wxGetMousePosition(&self.m_x, &self.m_y);
|
|
|
|
// If this event is associated with a window, the position should be in its
|
|
// client coordinates, but otherwise leave it in screen coordinates as what
|
|
// else can we use?
|
|
wxWindow* const win = wxDynamicCast(GetEventObject(), wxWindow);
|
|
if ( win )
|
|
win->ScreenToClient(&self.m_x, &self.m_y);
|
|
}
|
|
|
|
wxCoord wxKeyEvent::GetX() const
|
|
{
|
|
InitPositionIfNecessary();
|
|
|
|
return m_x;
|
|
}
|
|
|
|
wxCoord wxKeyEvent::GetY() const
|
|
{
|
|
InitPositionIfNecessary();
|
|
|
|
return m_y;
|
|
}
|
|
|
|
bool wxKeyEvent::IsKeyInCategory(int category) const
|
|
{
|
|
switch ( GetKeyCode() )
|
|
{
|
|
case WXK_LEFT:
|
|
case WXK_RIGHT:
|
|
case WXK_UP:
|
|
case WXK_DOWN:
|
|
case WXK_NUMPAD_LEFT:
|
|
case WXK_NUMPAD_RIGHT:
|
|
case WXK_NUMPAD_UP:
|
|
case WXK_NUMPAD_DOWN:
|
|
return (category & WXK_CATEGORY_ARROW) != 0;
|
|
|
|
case WXK_PAGEDOWN:
|
|
case WXK_PAGEUP:
|
|
case WXK_NUMPAD_PAGEUP:
|
|
case WXK_NUMPAD_PAGEDOWN:
|
|
return (category & WXK_CATEGORY_PAGING) != 0;
|
|
|
|
case WXK_HOME:
|
|
case WXK_END:
|
|
case WXK_NUMPAD_HOME:
|
|
case WXK_NUMPAD_END:
|
|
return (category & WXK_CATEGORY_JUMP) != 0;
|
|
|
|
case WXK_TAB:
|
|
case WXK_NUMPAD_TAB:
|
|
return (category & WXK_CATEGORY_TAB) != 0;
|
|
|
|
case WXK_BACK:
|
|
case WXK_DELETE:
|
|
case WXK_NUMPAD_DELETE:
|
|
return (category & WXK_CATEGORY_CUT) != 0;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxWindowCreateEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
|
|
{
|
|
SetEventType(wxEVT_CREATE);
|
|
SetEventObject(win);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxWindowDestroyEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
|
|
{
|
|
SetEventType(wxEVT_DESTROY);
|
|
SetEventObject(win);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxChildFocusEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
|
|
: wxCommandEvent(wxEVT_CHILD_FOCUS)
|
|
{
|
|
SetEventObject(win);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxHelpEvent
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/* static */
|
|
wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
|
|
{
|
|
if ( origin == Origin_Unknown )
|
|
{
|
|
// assume that the event comes from the help button if it's not from
|
|
// keyboard and that pressing F1 always results in the help event
|
|
origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
|
|
}
|
|
|
|
return origin;
|
|
}
|
|
|
|
#endif // wxUSE_GUI
|
|
|
|
|
|
#if wxUSE_BASE
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxEventHashTable
|
|
// ----------------------------------------------------------------------------
|
|
|
|
static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
|
|
|
|
wxEventHashTable* wxEventHashTable::sm_first = NULL;
|
|
|
|
wxEventHashTable::wxEventHashTable(const wxEventTable &table)
|
|
: m_table(table),
|
|
m_rebuildHash(true)
|
|
{
|
|
AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
|
|
|
|
m_next = sm_first;
|
|
if (m_next)
|
|
m_next->m_previous = this;
|
|
sm_first = this;
|
|
}
|
|
|
|
wxEventHashTable::~wxEventHashTable()
|
|
{
|
|
if (m_next)
|
|
m_next->m_previous = m_previous;
|
|
if (m_previous)
|
|
m_previous->m_next = m_next;
|
|
if (sm_first == this)
|
|
sm_first = m_next;
|
|
|
|
Clear();
|
|
}
|
|
|
|
void wxEventHashTable::Clear()
|
|
{
|
|
for ( size_t i = 0; i < m_size; i++ )
|
|
{
|
|
EventTypeTablePointer eTTnode = m_eventTypeTable[i];
|
|
delete eTTnode;
|
|
}
|
|
|
|
wxDELETEA(m_eventTypeTable);
|
|
|
|
m_size = 0;
|
|
}
|
|
|
|
#if wxUSE_MEMORY_TRACING
|
|
|
|
// Clear all tables
|
|
void wxEventHashTable::ClearAll()
|
|
{
|
|
wxEventHashTable* table = sm_first;
|
|
while (table)
|
|
{
|
|
table->Clear();
|
|
table = table->m_next;
|
|
}
|
|
}
|
|
|
|
#endif // wxUSE_MEMORY_TRACING
|
|
|
|
bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
|
|
{
|
|
if (m_rebuildHash)
|
|
{
|
|
InitHashTable();
|
|
m_rebuildHash = false;
|
|
}
|
|
|
|
if (!m_eventTypeTable)
|
|
return false;
|
|
|
|
// Find all entries for the given event type.
|
|
wxEventType eventType = event.GetEventType();
|
|
const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
|
|
if (eTTnode && eTTnode->eventType == eventType)
|
|
{
|
|
// Now start the search for an event handler
|
|
// that can handle an event with the given ID.
|
|
const wxEventTableEntryPointerArray&
|
|
eventEntryTable = eTTnode->eventEntryTable;
|
|
|
|
const size_t count = eventEntryTable.GetCount();
|
|
for (size_t n = 0; n < count; n++)
|
|
{
|
|
const wxEventTableEntry& entry = *eventEntryTable[n];
|
|
if ( wxEvtHandler::ProcessEventIfMatchesId(entry, self, event) )
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void wxEventHashTable::InitHashTable()
|
|
{
|
|
// Loop over the event tables and all its base tables.
|
|
const wxEventTable *table = &m_table;
|
|
while (table)
|
|
{
|
|
// Retrieve all valid event handler entries
|
|
const wxEventTableEntry *entry = table->entries;
|
|
while (entry->m_fn != 0)
|
|
{
|
|
// Add the event entry in the Hash.
|
|
AddEntry(*entry);
|
|
|
|
entry++;
|
|
}
|
|
|
|
table = table->baseTable;
|
|
}
|
|
|
|
// Let's free some memory.
|
|
size_t i;
|
|
for(i = 0; i < m_size; i++)
|
|
{
|
|
EventTypeTablePointer eTTnode = m_eventTypeTable[i];
|
|
if (eTTnode)
|
|
{
|
|
eTTnode->eventEntryTable.Shrink();
|
|
}
|
|
}
|
|
}
|
|
|
|
void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
|
|
{
|
|
// This might happen 'accidentally' as the app is exiting
|
|
if (!m_eventTypeTable)
|
|
return;
|
|
|
|
EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
|
|
EventTypeTablePointer eTTnode = *peTTnode;
|
|
|
|
if (eTTnode)
|
|
{
|
|
if (eTTnode->eventType != entry.m_eventType)
|
|
{
|
|
// Resize the table!
|
|
GrowEventTypeTable();
|
|
// Try again to add it.
|
|
AddEntry(entry);
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
eTTnode = new EventTypeTable;
|
|
eTTnode->eventType = entry.m_eventType;
|
|
*peTTnode = eTTnode;
|
|
}
|
|
|
|
// Fill all hash entries between entry.m_id and entry.m_lastId...
|
|
eTTnode->eventEntryTable.Add(&entry);
|
|
}
|
|
|
|
void wxEventHashTable::AllocEventTypeTable(size_t size)
|
|
{
|
|
m_eventTypeTable = new EventTypeTablePointer[size];
|
|
memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
|
|
m_size = size;
|
|
}
|
|
|
|
void wxEventHashTable::GrowEventTypeTable()
|
|
{
|
|
size_t oldSize = m_size;
|
|
EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
|
|
|
|
// TODO: Search the most optimal grow sequence
|
|
AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
|
|
|
|
for ( size_t i = 0; i < oldSize; /* */ )
|
|
{
|
|
EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
|
|
if (eTToldNode)
|
|
{
|
|
EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
|
|
EventTypeTablePointer eTTnode = *peTTnode;
|
|
|
|
// Check for collision, we don't want any.
|
|
if (eTTnode)
|
|
{
|
|
GrowEventTypeTable();
|
|
continue; // Don't increment the counter,
|
|
// as we still need to add this element.
|
|
}
|
|
else
|
|
{
|
|
// Get the old value and put it in the new table.
|
|
*peTTnode = oldEventTypeTable[i];
|
|
}
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
delete[] oldEventTypeTable;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxEvtHandler
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxEvtHandler::wxEvtHandler()
|
|
{
|
|
m_nextHandler = NULL;
|
|
m_previousHandler = NULL;
|
|
m_enabled = true;
|
|
m_dynamicEvents = NULL;
|
|
m_pendingEvents = NULL;
|
|
|
|
// no client data (yet)
|
|
m_clientData = NULL;
|
|
m_clientDataType = wxClientData_None;
|
|
}
|
|
|
|
wxEvtHandler::~wxEvtHandler()
|
|
{
|
|
Unlink();
|
|
|
|
if (m_dynamicEvents)
|
|
{
|
|
size_t cookie;
|
|
for ( wxDynamicEventTableEntry* entry = GetFirstDynamicEntry(cookie);
|
|
entry;
|
|
entry = GetNextDynamicEntry(cookie) )
|
|
{
|
|
// Remove ourselves from sink destructor notifications
|
|
// (this has usually been done, in wxTrackable destructor)
|
|
wxEvtHandler *eventSink = entry->m_fn->GetEvtHandler();
|
|
if ( eventSink )
|
|
{
|
|
wxEventConnectionRef * const
|
|
evtConnRef = FindRefInTrackerList(eventSink);
|
|
if ( evtConnRef )
|
|
{
|
|
eventSink->RemoveNode(evtConnRef);
|
|
delete evtConnRef;
|
|
}
|
|
}
|
|
|
|
delete entry->m_callbackUserData;
|
|
delete entry;
|
|
}
|
|
delete m_dynamicEvents;
|
|
}
|
|
|
|
// Remove us from the list of the pending events if necessary.
|
|
if (wxTheApp)
|
|
wxTheApp->RemovePendingEventHandler(this);
|
|
|
|
DeletePendingEvents();
|
|
|
|
// we only delete object data, not untyped
|
|
if ( m_clientDataType == wxClientData_Object )
|
|
delete m_clientObject;
|
|
}
|
|
|
|
void wxEvtHandler::Unlink()
|
|
{
|
|
// this event handler must take itself out of the chain of handlers:
|
|
|
|
if (m_previousHandler)
|
|
m_previousHandler->SetNextHandler(m_nextHandler);
|
|
|
|
if (m_nextHandler)
|
|
m_nextHandler->SetPreviousHandler(m_previousHandler);
|
|
|
|
m_nextHandler = NULL;
|
|
m_previousHandler = NULL;
|
|
}
|
|
|
|
bool wxEvtHandler::IsUnlinked() const
|
|
{
|
|
return m_previousHandler == NULL &&
|
|
m_nextHandler == NULL;
|
|
}
|
|
|
|
wxEventFilter* wxEvtHandler::ms_filterList = NULL;
|
|
|
|
/* static */ void wxEvtHandler::AddFilter(wxEventFilter* filter)
|
|
{
|
|
wxCHECK_RET( filter, "NULL filter" );
|
|
|
|
filter->m_next = ms_filterList;
|
|
ms_filterList = filter;
|
|
}
|
|
|
|
/* static */ void wxEvtHandler::RemoveFilter(wxEventFilter* filter)
|
|
{
|
|
wxEventFilter* prev = NULL;
|
|
for ( wxEventFilter* f = ms_filterList; f; f = f->m_next )
|
|
{
|
|
if ( f == filter )
|
|
{
|
|
// Set the previous list element or the list head to the next
|
|
// element.
|
|
if ( prev )
|
|
prev->m_next = f->m_next;
|
|
else
|
|
ms_filterList = f->m_next;
|
|
|
|
// Also reset the next pointer in the filter itself just to avoid
|
|
// having possibly dangling pointers, even though it's not strictly
|
|
// necessary.
|
|
f->m_next = NULL;
|
|
|
|
// Skip the assert below.
|
|
return;
|
|
}
|
|
|
|
prev = f;
|
|
}
|
|
|
|
wxFAIL_MSG( "Filter not found" );
|
|
}
|
|
|
|
#if wxUSE_THREADS
|
|
|
|
bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
|
|
{
|
|
// check that we are really in a child thread
|
|
wxASSERT_MSG( !wxThread::IsMain(),
|
|
wxT("use ProcessEvent() in main thread") );
|
|
|
|
AddPendingEvent(event);
|
|
|
|
return true;
|
|
}
|
|
|
|
#endif // wxUSE_THREADS
|
|
|
|
void wxEvtHandler::QueueEvent(wxEvent *event)
|
|
{
|
|
wxCHECK_RET( event, "NULL event can't be posted" );
|
|
|
|
if (!wxTheApp)
|
|
{
|
|
// we need an event loop which manages the list of event handlers with
|
|
// pending events... cannot proceed without it!
|
|
wxLogDebug("No application object! Cannot queue this event!");
|
|
|
|
// anyway delete the given event to avoid memory leaks
|
|
delete event;
|
|
|
|
return;
|
|
}
|
|
|
|
// 1) Add this event to our list of pending events
|
|
wxENTER_CRIT_SECT( m_pendingEventsLock );
|
|
|
|
if ( !m_pendingEvents )
|
|
m_pendingEvents = new wxList;
|
|
|
|
m_pendingEvents->Append(event);
|
|
|
|
// 2) Add this event handler to list of event handlers that
|
|
// have pending events.
|
|
|
|
wxTheApp->AppendPendingEventHandler(this);
|
|
|
|
// only release m_pendingEventsLock now because otherwise there is a race
|
|
// condition as described in the ticket #9093: we could process the event
|
|
// just added to m_pendingEvents in our ProcessPendingEvents() below before
|
|
// we had time to append this pointer to wxHandlersWithPendingEvents list; thus
|
|
// breaking the invariant that a handler should be in the list iff it has
|
|
// any pending events to process
|
|
wxLEAVE_CRIT_SECT( m_pendingEventsLock );
|
|
|
|
// 3) Inform the system that new pending events are somewhere,
|
|
// and that these should be processed in idle time.
|
|
wxWakeUpIdle();
|
|
}
|
|
|
|
void wxEvtHandler::DeletePendingEvents()
|
|
{
|
|
if (m_pendingEvents)
|
|
m_pendingEvents->DeleteContents(true);
|
|
wxDELETE(m_pendingEvents);
|
|
}
|
|
|
|
void wxEvtHandler::ProcessPendingEvents()
|
|
{
|
|
if (!wxTheApp)
|
|
{
|
|
// we need an event loop which manages the list of event handlers with
|
|
// pending events... cannot proceed without it!
|
|
wxLogDebug("No application object! Cannot process pending events!");
|
|
return;
|
|
}
|
|
|
|
// we need to process only a single pending event in this call because
|
|
// each call to ProcessEvent() could result in the destruction of this
|
|
// same event handler (see the comment at the end of this function)
|
|
|
|
wxENTER_CRIT_SECT( m_pendingEventsLock );
|
|
|
|
// this method is only called by wxApp if this handler does have
|
|
// pending events
|
|
wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(),
|
|
"should have pending events if called" );
|
|
|
|
wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
|
|
wxEvent* pEvent = static_cast<wxEvent *>(node->GetData());
|
|
|
|
// find the first event which can be processed now:
|
|
wxEventLoopBase* evtLoop = wxEventLoopBase::GetActive();
|
|
if (evtLoop && evtLoop->IsYielding())
|
|
{
|
|
while (node && pEvent && !evtLoop->IsEventAllowedInsideYield(pEvent->GetEventCategory()))
|
|
{
|
|
node = node->GetNext();
|
|
pEvent = node ? static_cast<wxEvent *>(node->GetData()) : NULL;
|
|
}
|
|
|
|
if (!node)
|
|
{
|
|
// all our events are NOT processable now... signal this:
|
|
wxTheApp->DelayPendingEventHandler(this);
|
|
|
|
// see the comment at the beginning of evtloop.h header for the
|
|
// logic behind YieldFor() and behind DelayPendingEventHandler()
|
|
|
|
wxLEAVE_CRIT_SECT( m_pendingEventsLock );
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
wxEventPtr event(pEvent);
|
|
|
|
// it's important we remove event from list before processing it, else a
|
|
// nested event loop, for example from a modal dialog, might process the
|
|
// same event again.
|
|
m_pendingEvents->Erase(node);
|
|
|
|
if ( m_pendingEvents->IsEmpty() )
|
|
{
|
|
// if there are no more pending events left, we don't need to
|
|
// stay in this list
|
|
wxTheApp->RemovePendingEventHandler(this);
|
|
}
|
|
|
|
wxLEAVE_CRIT_SECT( m_pendingEventsLock );
|
|
|
|
ProcessEvent(*event);
|
|
|
|
// careful: this object could have been deleted by the event handler
|
|
// executed by the above ProcessEvent() call, so we can't access any fields
|
|
// of this object any more
|
|
}
|
|
|
|
/* static */
|
|
bool wxEvtHandler::ProcessEventIfMatchesId(const wxEventTableEntryBase& entry,
|
|
wxEvtHandler *handler,
|
|
wxEvent& event)
|
|
{
|
|
int tableId1 = entry.m_id,
|
|
tableId2 = entry.m_lastId;
|
|
|
|
// match only if the event type is the same and the id is either -1 in
|
|
// the event table (meaning "any") or the event id matches the id
|
|
// specified in the event table either exactly or by falling into
|
|
// range between first and last
|
|
if ((tableId1 == wxID_ANY) ||
|
|
(tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
|
|
(tableId2 != wxID_ANY &&
|
|
(event.GetId() >= tableId1 && event.GetId() <= tableId2)))
|
|
{
|
|
event.Skip(false);
|
|
event.m_callbackUserData = entry.m_callbackUserData;
|
|
|
|
#if wxUSE_EXCEPTIONS
|
|
if ( wxTheApp )
|
|
{
|
|
// call the handler via wxApp method which allows the user to catch
|
|
// any exceptions which may be thrown by any handler in the program
|
|
// in one place
|
|
wxTheApp->CallEventHandler(handler, *entry.m_fn, event);
|
|
}
|
|
else
|
|
#endif // wxUSE_EXCEPTIONS
|
|
{
|
|
(*entry.m_fn)(handler, event);
|
|
}
|
|
|
|
if (!event.GetSkipped())
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool wxEvtHandler::DoTryApp(wxEvent& event)
|
|
{
|
|
if ( wxTheApp && (this != wxTheApp) )
|
|
{
|
|
// Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
|
|
// swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
|
|
// processed appropriately via SearchEventTable.
|
|
if ( event.GetEventType() != wxEVT_IDLE )
|
|
{
|
|
if ( wxTheApp->ProcessEvent(event) )
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool wxEvtHandler::TryBefore(wxEvent& event)
|
|
{
|
|
#if WXWIN_COMPATIBILITY_2_8
|
|
// call the old virtual function to keep the code overriding it working
|
|
return TryValidator(event);
|
|
#else
|
|
wxUnusedVar(event);
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
bool wxEvtHandler::TryAfter(wxEvent& event)
|
|
{
|
|
// We only want to pass the window to the application object once even if
|
|
// there are several chained handlers. Ensure that this is what happens by
|
|
// only calling DoTryApp() if there is no next handler (which would do it).
|
|
//
|
|
// Notice that, unlike simply calling TryAfter() on the last handler in the
|
|
// chain only from ProcessEvent(), this also works with wxWindow object in
|
|
// the middle of the chain: its overridden TryAfter() will still be called
|
|
// and propagate the event upwards the window hierarchy even if it's not
|
|
// the last one in the chain (which, admittedly, shouldn't happen often).
|
|
if ( GetNextHandler() )
|
|
return GetNextHandler()->TryAfter(event);
|
|
|
|
// If this event is going to be processed in another handler next, don't
|
|
// pass it to wxTheApp now, it will be done from TryAfter() of this other
|
|
// handler.
|
|
if ( event.WillBeProcessedAgain() )
|
|
return false;
|
|
|
|
#if WXWIN_COMPATIBILITY_2_8
|
|
// as above, call the old virtual function for compatibility
|
|
return TryParent(event);
|
|
#else
|
|
return DoTryApp(event);
|
|
#endif
|
|
}
|
|
|
|
bool wxEvtHandler::ProcessEvent(wxEvent& event)
|
|
{
|
|
// The very first thing we do is to allow any registered filters to hook
|
|
// into event processing in order to globally pre-process all events.
|
|
//
|
|
// Note that we should only do it if we're the first event handler called
|
|
// to avoid calling FilterEvent() multiple times as the event goes through
|
|
// the event handler chain and possibly upwards the window hierarchy.
|
|
if ( !event.WasProcessed() )
|
|
{
|
|
for ( wxEventFilter* f = ms_filterList; f; f = f->m_next )
|
|
{
|
|
int rc = f->FilterEvent(event);
|
|
if ( rc != wxEventFilter::Event_Skip )
|
|
{
|
|
wxASSERT_MSG( rc == wxEventFilter::Event_Ignore ||
|
|
rc == wxEventFilter::Event_Processed,
|
|
"unexpected FilterEvent() return value" );
|
|
|
|
return rc != wxEventFilter::Event_Ignore;
|
|
}
|
|
//else: proceed normally
|
|
}
|
|
}
|
|
|
|
// Short circuit the event processing logic if we're requested to process
|
|
// this event in this handler only, see DoTryChain() for more details.
|
|
if ( event.ShouldProcessOnlyIn(this) )
|
|
return TryBeforeAndHere(event);
|
|
|
|
|
|
// Try to process the event in this handler itself.
|
|
if ( ProcessEventLocally(event) )
|
|
{
|
|
// It is possible that DoTryChain() called from ProcessEventLocally()
|
|
// returned true but the event was not really processed: this happens
|
|
// if a custom handler ignores the request to process the event in this
|
|
// handler only and in this case we should skip the post processing
|
|
// done in TryAfter() but still return the correct value ourselves to
|
|
// indicate whether we did or did not find a handler for this event.
|
|
return !event.GetSkipped();
|
|
}
|
|
|
|
// If we still didn't find a handler, propagate the event upwards the
|
|
// window chain and/or to the application object.
|
|
if ( TryAfter(event) )
|
|
return true;
|
|
|
|
|
|
// No handler found anywhere, bail out.
|
|
return false;
|
|
}
|
|
|
|
bool wxEvtHandler::ProcessEventLocally(wxEvent& event)
|
|
{
|
|
// Try the hooks which should be called before our own handlers and this
|
|
// handler itself first. Notice that we should not call ProcessEvent() on
|
|
// this one as we're already called from it, which explains why we do it
|
|
// here and not in DoTryChain()
|
|
return TryBeforeAndHere(event) || DoTryChain(event);
|
|
}
|
|
|
|
bool wxEvtHandler::DoTryChain(wxEvent& event)
|
|
{
|
|
for ( wxEvtHandler *h = GetNextHandler(); h; h = h->GetNextHandler() )
|
|
{
|
|
// We need to process this event at the level of this handler only
|
|
// right now, the pre-/post-processing was either already done by
|
|
// ProcessEvent() from which we were called or will be done by it when
|
|
// we return.
|
|
//
|
|
// However we must call ProcessEvent() and not TryHereOnly() because the
|
|
// existing code (including some in wxWidgets itself) expects the
|
|
// overridden ProcessEvent() in its custom event handlers pushed on a
|
|
// window to be called.
|
|
//
|
|
// So we must call ProcessEvent() but it must not do what it usually
|
|
// does. To resolve this paradox we set up a special flag inside the
|
|
// object itself to let ProcessEvent() know that it shouldn't do any
|
|
// pre/post-processing for this event if it gets it. Note that this
|
|
// only applies to this handler, if the event is passed to another one
|
|
// by explicitly calling its ProcessEvent(), pre/post-processing should
|
|
// be done as usual.
|
|
//
|
|
// Final complication is that if the implementation of ProcessEvent()
|
|
// called wxEvent::DidntHonourProcessOnlyIn() (as the gross hack that
|
|
// is wxScrollHelperEvtHandler::ProcessEvent() does) and ignored our
|
|
// request to process event in this handler only, we have to compensate
|
|
// for it by not processing the event further because this was already
|
|
// done by that rogue event handler.
|
|
wxEventProcessInHandlerOnly processInHandlerOnly(event, h);
|
|
if ( h->ProcessEvent(event) )
|
|
{
|
|
// Make sure "skipped" flag is not set as the event was really
|
|
// processed in this case. Normally it shouldn't be set anyhow but
|
|
// make sure just in case the user code does something strange.
|
|
event.Skip(false);
|
|
|
|
return true;
|
|
}
|
|
|
|
if ( !event.ShouldProcessOnlyIn(h) )
|
|
{
|
|
// Still return true to indicate that no further processing should
|
|
// be undertaken but ensure that "skipped" flag is set so that the
|
|
// caller knows that the event was not really processed.
|
|
event.Skip();
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool wxEvtHandler::TryHereOnly(wxEvent& event)
|
|
{
|
|
// If the event handler is disabled it doesn't process any events
|
|
if ( !GetEvtHandlerEnabled() )
|
|
return false;
|
|
|
|
// Handle per-instance dynamic event tables first
|
|
if ( m_dynamicEvents && SearchDynamicEventTable(event) )
|
|
return true;
|
|
|
|
// Then static per-class event tables
|
|
if ( GetEventHashTable().HandleEvent(event, this) )
|
|
return true;
|
|
|
|
#ifdef wxHAS_CALL_AFTER
|
|
// There is an implicit entry for async method calls processing in every
|
|
// event handler:
|
|
if ( event.GetEventType() == wxEVT_ASYNC_METHOD_CALL &&
|
|
event.GetEventObject() == this )
|
|
{
|
|
static_cast<wxAsyncMethodCallEvent&>(event).Execute();
|
|
return true;
|
|
}
|
|
#endif // wxHAS_CALL_AFTER
|
|
|
|
// We don't have a handler for this event.
|
|
return false;
|
|
}
|
|
|
|
bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
|
|
{
|
|
#if wxUSE_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif
|
|
return ProcessEvent(event);
|
|
#if wxUSE_EXCEPTIONS
|
|
}
|
|
catch ( ... )
|
|
{
|
|
WXConsumeException();
|
|
|
|
return false;
|
|
}
|
|
#endif // wxUSE_EXCEPTIONS
|
|
}
|
|
|
|
#if wxUSE_EXCEPTIONS
|
|
/* static */
|
|
void wxEvtHandler::WXConsumeException()
|
|
{
|
|
wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
|
|
try
|
|
{
|
|
if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
|
|
{
|
|
// If OnExceptionInMainLoop() returns false, we're supposed to exit
|
|
// the program and for this we need to exit the main loop, not the
|
|
// possibly nested one we're running right now.
|
|
if ( wxTheApp )
|
|
{
|
|
wxTheApp->ExitMainLoop();
|
|
}
|
|
else
|
|
{
|
|
// We must not continue running after an exception, unless
|
|
// explicitly requested, so if we can't ensure this in any
|
|
// other way, do it brutally like this.
|
|
wxAbort();
|
|
}
|
|
|
|
}
|
|
//else: continue running current event loop
|
|
}
|
|
catch ( ... )
|
|
{
|
|
// OnExceptionInMainLoop() threw, possibly rethrowing the same
|
|
// exception again. We have to deal with it here because we can't
|
|
// allow the exception to escape from the handling code, this will
|
|
// result in a crash at best (e.g. when using wxGTK as C++
|
|
// exceptions can't propagate through the C GTK+ code and corrupt
|
|
// the stack) and in something even more weird at worst (like
|
|
// exceptions completely disappearing into the void under some
|
|
// 64 bit versions of Windows).
|
|
if ( loop && !loop->IsYielding() )
|
|
loop->Exit();
|
|
|
|
// Give the application one last possibility to store the exception
|
|
// for rethrowing it later, when we get back to our code.
|
|
bool stored = false;
|
|
try
|
|
{
|
|
if ( wxTheApp )
|
|
stored = wxTheApp->StoreCurrentException();
|
|
}
|
|
catch ( ... )
|
|
{
|
|
// StoreCurrentException() really shouldn't throw, but if it
|
|
// did, take it as an indication that it didn't store it.
|
|
}
|
|
|
|
// If it didn't take it, just abort, at least like this we behave
|
|
// consistently everywhere.
|
|
if ( !stored )
|
|
{
|
|
try
|
|
{
|
|
if ( wxTheApp )
|
|
wxTheApp->OnUnhandledException();
|
|
}
|
|
catch ( ... )
|
|
{
|
|
// And OnUnhandledException() absolutely shouldn't throw,
|
|
// but we still must account for the possibility that it
|
|
// did. At least show some information about the exception
|
|
// in this case.
|
|
wxTheApp->wxAppConsoleBase::OnUnhandledException();
|
|
}
|
|
|
|
wxAbort();
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // wxUSE_EXCEPTIONS
|
|
|
|
bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
|
|
{
|
|
const wxEventType eventType = event.GetEventType();
|
|
for ( int i = 0; table.entries[i].m_fn != 0; i++ )
|
|
{
|
|
const wxEventTableEntry& entry = table.entries[i];
|
|
if ( eventType == entry.m_eventType )
|
|
{
|
|
if ( ProcessEventIfMatchesId(entry, this, event) )
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void wxEvtHandler::DoBind(int id,
|
|
int lastId,
|
|
wxEventType eventType,
|
|
wxEventFunctor *func,
|
|
wxObject *userData)
|
|
{
|
|
wxDynamicEventTableEntry *entry =
|
|
new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
|
|
|
|
// Check if the derived class allows binding such event handlers.
|
|
if ( !OnDynamicBind(*entry) )
|
|
{
|
|
delete entry;
|
|
return;
|
|
}
|
|
|
|
if (!m_dynamicEvents)
|
|
m_dynamicEvents = new DynamicEvents;
|
|
|
|
// We prefer to push back the entry here and then iterate over the vector
|
|
// in reverse direction in GetNextDynamicEntry() as it's more efficient
|
|
// than inserting the element at the front.
|
|
m_dynamicEvents->push_back(entry);
|
|
|
|
// Make sure we get to know when a sink is destroyed
|
|
wxEvtHandler *eventSink = func->GetEvtHandler();
|
|
if ( eventSink && eventSink != this )
|
|
{
|
|
wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
|
|
if ( evtConnRef )
|
|
evtConnRef->IncRef( );
|
|
else
|
|
new wxEventConnectionRef(this, eventSink);
|
|
}
|
|
}
|
|
|
|
bool
|
|
wxEvtHandler::DoUnbind(int id,
|
|
int lastId,
|
|
wxEventType eventType,
|
|
const wxEventFunctor& func,
|
|
wxObject *userData)
|
|
{
|
|
if (!m_dynamicEvents)
|
|
return false;
|
|
|
|
size_t cookie;
|
|
for ( wxDynamicEventTableEntry* entry = GetFirstDynamicEntry(cookie);
|
|
entry;
|
|
entry = GetNextDynamicEntry(cookie) )
|
|
{
|
|
if ((entry->m_id == id) &&
|
|
((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
|
|
((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
|
|
entry->m_fn->IsMatching(func) &&
|
|
((entry->m_callbackUserData == userData) || !userData))
|
|
{
|
|
// Remove connection from tracker node (wxEventConnectionRef)
|
|
wxEvtHandler *eventSink = entry->m_fn->GetEvtHandler();
|
|
if ( eventSink && eventSink != this )
|
|
{
|
|
wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
|
|
if ( evtConnRef )
|
|
evtConnRef->DecRef();
|
|
}
|
|
|
|
delete entry->m_callbackUserData;
|
|
|
|
// We can't delete the entry from the vector if we're currently
|
|
// iterating over it. As we don't know whether we're or not, just
|
|
// null it for now and we will really erase it when we do finish
|
|
// iterating over it the next time.
|
|
//
|
|
// Notice that we rely on "cookie" being just the index into the
|
|
// vector, which is not guaranteed by our API, but here we can use
|
|
// this implementation detail.
|
|
(*m_dynamicEvents)[cookie] = NULL;
|
|
|
|
delete entry;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
wxDynamicEventTableEntry*
|
|
wxEvtHandler::GetFirstDynamicEntry(size_t& cookie) const
|
|
{
|
|
if ( !m_dynamicEvents )
|
|
return NULL;
|
|
|
|
// The handlers are in LIFO order, so we must start at the end.
|
|
cookie = m_dynamicEvents->size();
|
|
return GetNextDynamicEntry(cookie);
|
|
}
|
|
|
|
wxDynamicEventTableEntry*
|
|
wxEvtHandler::GetNextDynamicEntry(size_t& cookie) const
|
|
{
|
|
// On entry here cookie is one greater than the index of the entry to
|
|
// return, so if it is 0, it means that there are no more entries.
|
|
while ( cookie )
|
|
{
|
|
// Otherwise return the element at the previous index, skipping any
|
|
// null elements which indicate removed entries.
|
|
wxDynamicEventTableEntry* const entry = m_dynamicEvents->at(--cookie);
|
|
if ( entry )
|
|
return entry;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
|
|
{
|
|
wxCHECK_MSG( m_dynamicEvents, false,
|
|
wxT("caller should check that we have dynamic events") );
|
|
|
|
DynamicEvents& dynamicEvents = *m_dynamicEvents;
|
|
|
|
bool needToPruneDeleted = false;
|
|
|
|
// We can't use Get{First,Next}DynamicEntry() here as they hide the deleted
|
|
// but not yet pruned entries from the caller, but here we do want to know
|
|
// about them, so iterate directly. Remember to do it in the reverse order
|
|
// to honour the order of handlers connection.
|
|
for ( size_t n = dynamicEvents.size(); n; n-- )
|
|
{
|
|
wxDynamicEventTableEntry* const entry = dynamicEvents[n - 1];
|
|
|
|
if ( !entry )
|
|
{
|
|
// This entry must have been unbound at some time in the past, so
|
|
// skip it now and really remove it from the vector below, once we
|
|
// finish iterating.
|
|
needToPruneDeleted = true;
|
|
continue;
|
|
}
|
|
|
|
if ( event.GetEventType() == entry->m_eventType )
|
|
{
|
|
wxEvtHandler *handler = entry->m_fn->GetEvtHandler();
|
|
if ( !handler )
|
|
handler = this;
|
|
if ( ProcessEventIfMatchesId(*entry, handler, event) )
|
|
{
|
|
// It's important to skip pruning of the unbound event entries
|
|
// below because this object itself could have been deleted by
|
|
// the event handler making m_dynamicEvents a dangling pointer
|
|
// which can't be accessed any longer in the code below.
|
|
//
|
|
// In practice, it hopefully shouldn't be a problem to wait
|
|
// until we get an event that we don't handle before pruning
|
|
// because this should happen soon enough and even if it
|
|
// doesn't the worst possible outcome is slightly increased
|
|
// memory consumption while not skipping pruning can result in
|
|
// hard to reproduce (because they require the disconnection
|
|
// and deletion happen at the same time which is not always the
|
|
// case) crashes.
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( needToPruneDeleted )
|
|
{
|
|
size_t nNew = 0;
|
|
for ( size_t n = 0; n != dynamicEvents.size(); n++ )
|
|
{
|
|
if ( dynamicEvents[n] )
|
|
dynamicEvents[nNew++] = dynamicEvents[n];
|
|
}
|
|
|
|
wxASSERT( nNew != dynamicEvents.size() );
|
|
dynamicEvents.resize(nNew);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void wxEvtHandler::DoSetClientObject( wxClientData *data )
|
|
{
|
|
wxASSERT_MSG( m_clientDataType != wxClientData_Void,
|
|
wxT("can't have both object and void client data") );
|
|
|
|
delete m_clientObject;
|
|
|
|
m_clientObject = data;
|
|
m_clientDataType = wxClientData_Object;
|
|
}
|
|
|
|
wxClientData *wxEvtHandler::DoGetClientObject() const
|
|
{
|
|
// it's not an error to call GetClientObject() on a window which doesn't
|
|
// have client data at all - NULL will be returned
|
|
wxASSERT_MSG( m_clientDataType != wxClientData_Void,
|
|
wxT("this window doesn't have object client data") );
|
|
|
|
return m_clientObject;
|
|
}
|
|
|
|
void wxEvtHandler::DoSetClientData( void *data )
|
|
{
|
|
wxASSERT_MSG( m_clientDataType != wxClientData_Object,
|
|
wxT("can't have both object and void client data") );
|
|
|
|
m_clientData = data;
|
|
m_clientDataType = wxClientData_Void;
|
|
}
|
|
|
|
void *wxEvtHandler::DoGetClientData() const
|
|
{
|
|
// it's not an error to call GetClientData() on a window which doesn't have
|
|
// client data at all - NULL will be returned
|
|
wxASSERT_MSG( m_clientDataType != wxClientData_Object,
|
|
wxT("this window doesn't have void client data") );
|
|
|
|
return m_clientData;
|
|
}
|
|
|
|
// A helper to find an wxEventConnectionRef object
|
|
wxEventConnectionRef *
|
|
wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink)
|
|
{
|
|
for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt )
|
|
{
|
|
// we only want wxEventConnectionRef nodes here
|
|
wxEventConnectionRef *evtConnRef = node->ToEventConnection();
|
|
if ( evtConnRef && evtConnRef->m_src == this )
|
|
{
|
|
wxASSERT( evtConnRef->m_sink==eventSink );
|
|
return evtConnRef;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink )
|
|
{
|
|
wxASSERT(m_dynamicEvents);
|
|
|
|
// remove all connections with this sink
|
|
size_t cookie;
|
|
for ( wxDynamicEventTableEntry* entry = GetFirstDynamicEntry(cookie);
|
|
entry;
|
|
entry = GetNextDynamicEntry(cookie) )
|
|
{
|
|
if ( entry->m_fn->GetEvtHandler() == sink )
|
|
{
|
|
delete entry->m_callbackUserData;
|
|
delete entry;
|
|
|
|
// Just as in DoUnbind(), we use our knowledge of
|
|
// GetNextDynamicEntry() implementation here.
|
|
(*m_dynamicEvents)[cookie] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // wxUSE_BASE
|
|
|
|
#if wxUSE_GUI
|
|
|
|
// Find a window with the focus, that is also a descendant of the given window.
|
|
// This is used to determine the window to initially send commands to.
|
|
wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
|
|
{
|
|
// Process events starting with the window with the focus, if any.
|
|
wxWindow* focusWin = wxWindow::FindFocus();
|
|
wxWindow* win = focusWin;
|
|
|
|
// Check if this is a descendant of this frame.
|
|
// If not, win will be set to NULL.
|
|
while (win)
|
|
{
|
|
if (win == ancestor)
|
|
break;
|
|
else
|
|
win = win->GetParent();
|
|
}
|
|
if (win == NULL)
|
|
focusWin = NULL;
|
|
|
|
return focusWin;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxEventBlocker
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
|
|
{
|
|
wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
|
|
|
|
m_window = win;
|
|
|
|
Block(type);
|
|
m_window->PushEventHandler(this);
|
|
}
|
|
|
|
wxEventBlocker::~wxEventBlocker()
|
|
{
|
|
wxEvtHandler *popped = m_window->PopEventHandler(false);
|
|
wxCHECK_RET(popped == this,
|
|
wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
|
|
}
|
|
|
|
bool wxEventBlocker::ProcessEvent(wxEvent& event)
|
|
{
|
|
// should this event be blocked?
|
|
for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
|
|
{
|
|
wxEventType t = (wxEventType)m_eventsToBlock[i];
|
|
if ( t == wxEVT_ANY || t == event.GetEventType() )
|
|
return true; // yes, it should: mark this event as processed
|
|
}
|
|
|
|
return wxEvtHandler::ProcessEvent(event);
|
|
}
|
|
|
|
#endif // wxUSE_GUI
|
|
|