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12a3f2275c94a345cf83abf5151db68391859623
wxWidgets/src/common/event.cpp
Ron Lee 12a3f2275c Deprecated wxSizer::Remove( wxWindow* ), s/Remove/Detach/ in most places. 
Made wxSizer child list typesafe.  I've not added the wxList implicit
conversion kludge yet, let's see who complains first perhaps..

Deprecated wxSizer::{G,S}etOption in favour of {G,S}etProportion in line
with the parameter name change in the docs.

Added {G,S}etSpacer consistent with the accessors for windows/sizers.

Made all wxSizer index parameters size_t -- we support no sensible
interpretation for negative indexes in them.  Hopefully this will
cause no real problems, but code doing (eg. Remove( 0 )) will need
to change to use 0u to resolve the ambiguity with overloaded members.
This is probably a Good Thing though, ymmv.

s/FALSE/false/g ; s/TRUE/true/g ; s/wxASSERT/wxASSERT_MSG/g in sizer.{cpp,h}

Fixed (I hope) the brokenness in wxSizer::Show -- I have no code to test
this yet, so it's a blind change, but spacers should now be hidden correctly
instead of ignored, and it should be properly reversable over multiple
calls now too.

removed pointless private scoping around DECLARE_CLASS macros.

Replace 0's I added previously with NULL -- not like that will end the
email thread either..

Added Add( wxSizerItem * ) & co.  There are probably a couple of other
places we can usefully do something like this too.  Stopped short of
refactoring everything to raise some issues about sizer method recursion
on -dev.

Updated wxSizer docs some more, they are still incomplete but getting
better.

wrapped KeyCode in wxDEPRECATED, converted all (gtk build) instances
to GetKeyCode.  There may be a few left for other ports.

Fixed a couple of other random compile warnings along the way.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18616 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-01-07 10:22:07 +00:00

1144 lines
32 KiB
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Raw Blame History

/////////////////////////////////////////////////////////////////////////////
// Name: event.cpp
// Purpose: Event classes
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "event.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/defs.h"
#include "wx/app.h"
#include "wx/list.h"
#if wxUSE_GUI
#include "wx/control.h"
#include "wx/utils.h"
#include "wx/dc.h"
#endif // wxUSE_GUI
#endif
#include "wx/event.h"
#if wxUSE_GUI
#include "wx/validate.h"
#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
#if wxUSE_GUI
IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
#endif // wxUSE_GUI
const wxEventTable *wxEvtHandler::GetEventTable() const
{ return &wxEvtHandler::sm_eventTable; }
const wxEventTable wxEvtHandler::sm_eventTable =
{ (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
{ DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------
// To put pending event handlers
wxList *wxPendingEvents = (wxList *)NULL;
#if wxUSE_THREADS
// protects wxPendingEvents list
wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
#endif
#if !WXWIN_COMPATIBILITY_EVENT_TYPES
// common event types are defined here, other event types are defined by the
// components which use them
DEFINE_EVENT_TYPE(wxEVT_NULL)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
// Sockets and timers send events, too
DEFINE_EVENT_TYPE(wxEVT_SOCKET)
DEFINE_EVENT_TYPE(wxEVT_TIMER)
// Mouse event types
DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
DEFINE_EVENT_TYPE(wxEVT_MOTION)
DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
// Non-client mouse events
DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
// Character input event type
DEFINE_EVENT_TYPE(wxEVT_CHAR)
DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
// Set cursor event
DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
// wxScrollbar and wxSlider event identifiers
DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL)
// Scroll events from wxWindow
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
// System events
DEFINE_EVENT_TYPE(wxEVT_SIZE)
DEFINE_EVENT_TYPE(wxEVT_MOVE)
DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
DEFINE_EVENT_TYPE(wxEVT_POWER)
DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
DEFINE_EVENT_TYPE(wxEVT_CREATE)
DEFINE_EVENT_TYPE(wxEVT_DESTROY)
DEFINE_EVENT_TYPE(wxEVT_SHOW)
DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_PAINT)
DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
DEFINE_EVENT_TYPE(wxEVT_IDLE)
DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
// Generic command events
// Note: a click is a higher-level event than button down/up
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
// Help events
DEFINE_EVENT_TYPE(wxEVT_HELP)
DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// event initialization
// ----------------------------------------------------------------------------
int wxNewEventType()
{
// MT-FIXME
static int s_lastUsedEventType = wxEVT_FIRST;
#if WXWIN_COMPATIBILITY_2
// check that we don't overlap with the user-defined types: if it does
// happen, the best solution is probably to update the existing code to
// use wxNewEventType() instead of wxEVT_USER_FIRST
//
// due to the uncertainty
wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1,
_T("possible event type conflict") );
#endif // WXWIN_COMPATIBILITY_2
return s_lastUsedEventType++;
}
// ----------------------------------------------------------------------------
// wxEvent
// ----------------------------------------------------------------------------
/*
* General wxWindows events, covering
* all interesting things that might happen (button clicking, resizing,
* setting text in widgets, etc.).
*
* For each completely new event type, derive a new event class.
*
*/
wxEvent::wxEvent(int theId, wxEventType commandType )
{
m_eventType = commandType;
m_eventObject = (wxObject *) NULL;
m_timeStamp = 0;
m_id = theId;
m_skipped = FALSE;
m_callbackUserData = (wxObject *) NULL;
m_isCommandEvent = FALSE;
}
wxEvent::wxEvent(const wxEvent &src)
: wxObject()
, 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_skipped(src.m_skipped)
, m_isCommandEvent(src.m_isCommandEvent)
{
}
#if wxUSE_GUI
/*
* Command events
*
*/
wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
: wxEvent(theId, commandType)
{
m_clientData = (char *) NULL;
m_clientObject = (wxClientData *) NULL;
m_extraLong = 0;
m_commandInt = 0;
m_commandString = wxEmptyString;
m_isCommandEvent = TRUE;
}
/*
* Scroll events
*/
wxScrollEvent::wxScrollEvent(wxEventType commandType,
int id,
int pos,
int orient)
: wxCommandEvent(commandType, id)
{
m_extraLong = orient;
m_commandInt = pos;
}
/*
* ScrollWin events
*/
wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
int pos,
int orient)
{
m_eventType = commandType;
m_extraLong = orient;
m_commandInt = pos;
}
/*
* Mouse events
*
*/
wxMouseEvent::wxMouseEvent(wxEventType commandType)
{
m_eventType = commandType;
m_metaDown = FALSE;
m_altDown = FALSE;
m_controlDown = FALSE;
m_shiftDown = FALSE;
m_leftDown = FALSE;
m_rightDown = FALSE;
m_middleDown = FALSE;
m_x = 0;
m_y = 0;
m_wheelRotation = 0;
m_wheelDelta = 0;
m_linesPerAction = 0;
}
void wxMouseEvent::Assign(const wxMouseEvent& event)
{
m_eventType = event.m_eventType;
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_controlDown = event.m_controlDown;
m_shiftDown = event.m_shiftDown;
m_altDown = event.m_altDown;
m_metaDown = event.m_metaDown;
m_wheelRotation = event.m_wheelRotation;
m_wheelDelta = event.m_wheelDelta;
m_linesPerAction = event.m_linesPerAction;
}
// True if was a button dclick event (1 = left, 2 = middle, 3 = right)
// or any button dclick event (but = -1)
bool wxMouseEvent::ButtonDClick(int but) const
{
switch (but)
{
case -1:
return (LeftDClick() || MiddleDClick() || RightDClick());
case 1:
return LeftDClick();
case 2:
return MiddleDClick();
case 3:
return RightDClick();
default:
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
}
return FALSE;
}
// True if was a button down event (1 = left, 2 = middle, 3 = right)
// or any button down event (but = -1)
bool wxMouseEvent::ButtonDown(int but) const
{
switch (but)
{
case -1:
return (LeftDown() || MiddleDown() || RightDown());
case 1:
return LeftDown();
case 2:
return MiddleDown();
case 3:
return RightDown();
default:
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
}
return FALSE;
}
// True if was a button up event (1 = left, 2 = middle, 3 = right)
// or any button up event (but = -1)
bool wxMouseEvent::ButtonUp(int but) const
{
switch (but)
{
case -1:
return (LeftUp() || MiddleUp() || RightUp());
case 1:
return LeftUp();
case 2:
return MiddleUp();
case 3:
return RightUp();
default:
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
}
return FALSE;
}
// True if the given button is currently changing state
bool wxMouseEvent::Button(int but) const
{
switch (but)
{
case -1:
return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
case 1:
return (LeftDown() || LeftUp() || LeftDClick());
case 2:
return (MiddleDown() || MiddleUp() || MiddleDClick());
case 3:
return (RightDown() || RightUp() || RightDClick());
default:
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
}
return FALSE;
}
bool wxMouseEvent::ButtonIsDown(int but) const
{
switch (but)
{
case -1:
return (LeftIsDown() || MiddleIsDown() || RightIsDown());
case 1:
return LeftIsDown();
case 2:
return MiddleIsDown();
case 3:
return RightIsDown();
default:
wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
}
return FALSE;
}
int wxMouseEvent::GetButton() const
{
for ( int i = 1; i <= 3; i++ )
{
if ( Button(i) )
{
return i;
}
}
return -1;
}
// 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;
}
/*
* Keyboard event
*
*/
wxKeyEvent::wxKeyEvent(wxEventType type)
{
m_eventType = type;
m_shiftDown = FALSE;
m_controlDown = FALSE;
m_metaDown = FALSE;
m_altDown = FALSE;
m_keyCode = 0;
m_scanCode = 0;
#if wxUSE_UNICODE
m_uniChar = 0;
#endif
}
wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
: wxEvent(evt)
{
m_x = evt.m_x;
m_y = evt.m_y;
m_keyCode = evt.m_keyCode;
m_controlDown = evt.m_controlDown;
m_shiftDown = evt.m_shiftDown;
m_altDown = evt.m_altDown;
m_metaDown = evt.m_metaDown;
m_scanCode = evt.m_scanCode;
m_rawCode = evt.m_rawCode;
m_rawFlags = evt.m_rawFlags;
#if wxUSE_UNICODE
m_uniChar = evt.m_uniChar;
#endif
}
long wxKeyEvent::KeyCode() const
{
return m_keyCode;
}
wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
{
SetEventType(wxEVT_CREATE);
SetEventObject(win);
}
wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
{
SetEventType(wxEVT_DESTROY);
SetEventObject(win);
}
wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
: wxCommandEvent(wxEVT_CHILD_FOCUS)
{
SetEventObject(win);
}
#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// wxEvtHandler
// ----------------------------------------------------------------------------
/*
* Event handler
*/
wxEvtHandler::wxEvtHandler()
{
m_nextHandler = (wxEvtHandler *) NULL;
m_previousHandler = (wxEvtHandler *) NULL;
m_enabled = TRUE;
m_dynamicEvents = (wxList *) NULL;
m_isWindow = FALSE;
m_pendingEvents = (wxList *) NULL;
#if wxUSE_THREADS
# if !defined(__VISAGECPP__)
m_eventsLocker = new wxCriticalSection;
# endif
#endif
// no client data (yet)
m_clientData = NULL;
m_clientDataType = wxClientData_None;
}
wxEvtHandler::~wxEvtHandler()
{
// Takes itself out of the list of handlers
if (m_previousHandler)
m_previousHandler->m_nextHandler = m_nextHandler;
if (m_nextHandler)
m_nextHandler->m_previousHandler = m_previousHandler;
if (m_dynamicEvents)
{
wxNode *node = m_dynamicEvents->First();
while (node)
{
#if WXWIN_COMPATIBILITY_EVENT_TYPES
wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
if (entry->m_callbackUserData)
delete entry->m_callbackUserData;
delete entry;
node = node->Next();
}
delete m_dynamicEvents;
};
delete m_pendingEvents;
#if wxUSE_THREADS
# if !defined(__VISAGECPP__)
delete m_eventsLocker;
# endif
#endif
// we only delete object data, not untyped
if ( m_clientDataType == wxClientData_Object )
delete m_clientObject;
}
#if wxUSE_THREADS
bool wxEvtHandler::ProcessThreadEvent(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::AddPendingEvent(wxEvent& event)
{
// 1) Add event to list of pending events of this event handler
wxEvent *eventCopy = event.Clone();
// we must be able to copy the events here so the event class must
// implement Clone() properly instead of just providing a NULL stab for it
wxCHECK_RET( eventCopy,
_T("events of this type aren't supposed to be posted") );
#if defined(__VISAGECPP__)
wxENTER_CRIT_SECT( m_eventsLocker);
#else
wxENTER_CRIT_SECT( *m_eventsLocker);
#endif
if ( !m_pendingEvents )
m_pendingEvents = new wxList;
m_pendingEvents->Append(eventCopy);
#if defined(__VISAGECPP__)
wxLEAVE_CRIT_SECT( m_eventsLocker);
#else
wxLEAVE_CRIT_SECT( *m_eventsLocker);
#endif
// 2) Add this event handler to list of event handlers that
// have pending events.
wxENTER_CRIT_SECT(*wxPendingEventsLocker);
if ( !wxPendingEvents )
wxPendingEvents = new wxList;
wxPendingEvents->Append(this);
wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
// 3) Inform the system that new pending events are somwehere,
// and that these should be processed in idle time.
wxWakeUpIdle();
}
void wxEvtHandler::ProcessPendingEvents()
{
#if defined(__VISAGECPP__)
wxENTER_CRIT_SECT( m_eventsLocker);
#else
wxENTER_CRIT_SECT( *m_eventsLocker);
#endif
wxNode *node = m_pendingEvents->First();
while ( node )
{
wxEvent *event = (wxEvent *)node->Data();
delete node;
// In ProcessEvent, new events might get added and
// we can safely leave the crtical section here.
#if defined(__VISAGECPP__)
wxLEAVE_CRIT_SECT( m_eventsLocker);
#else
wxLEAVE_CRIT_SECT( *m_eventsLocker);
#endif
ProcessEvent(*event);
delete event;
#if defined(__VISAGECPP__)
wxENTER_CRIT_SECT( m_eventsLocker);
#else
wxENTER_CRIT_SECT( *m_eventsLocker);
#endif
node = m_pendingEvents->First();
}
#if defined(__VISAGECPP__)
wxLEAVE_CRIT_SECT( m_eventsLocker);
#else
wxLEAVE_CRIT_SECT( *m_eventsLocker);
#endif
}
/*
* Event table stuff
*/
bool wxEvtHandler::ProcessEvent(wxEvent& event)
{
#if wxUSE_GUI
// We have to use the actual window or processing events from
// wxWindowNative destructor won't work (we don't see the wxWindow class)
#ifdef __WXDEBUG__
// check that our flag corresponds to reality
wxClassInfo* info = NULL;
#ifdef __WXUNIVERSAL__
# if defined(__WXMSW__)
info = CLASSINFO(wxWindowMSW);
# elif defined(__WXGTK__)
info = CLASSINFO(wxWindowGTK);
# elif defined(__WXX11__)
info = CLASSINFO(wxWindowX11);
# elif defined(__WXMGL__)
info = CLASSINFO(wxWindowMGL);
# elif defined(__WXPM__)
info = CLASSINFO(wxWindowOS2);
# elif defined(__WXMAC__)
info = CLASSINFO(wxWindowMac);
# elif defined(__WXMOTIF__)
info = CLASSINFO(wxWindowMotif);
# endif
#else
info = CLASSINFO(wxWindow);
#endif
if ( m_isWindow != IsKindOf(info) )
{
wxString msg = GetClassInfo()->GetClassName();
msg += _T(" should [not] be a window but it is [not]");
wxFAIL_MSG( msg );
}
#endif // __WXDEBUG__
#endif // wxUSE_GUI
// allow the application to hook into event processing
if ( wxTheApp )
{
int rc = wxTheApp->FilterEvent(event);
if ( rc != -1 )
{
wxASSERT_MSG( rc == 1 || rc == 0,
_T("unexpected wxApp::FilterEvent return value") );
return rc != 0;
}
//else: proceed normally
}
// An event handler can be enabled or disabled
if ( GetEvtHandlerEnabled() )
{
#if 0
/*
What is this? When using GUI threads, a non main
threads can send an event and process it itself.
This breaks GTK's GUI threads, so please explain.
*/
// Check whether we are in a child thread.
if ( !wxThread::IsMain() )
return ProcessThreadEvent(event);
#endif
// Handle per-instance dynamic event tables first
if ( m_dynamicEvents && SearchDynamicEventTable(event) )
return TRUE;
// Then static per-class event tables
const wxEventTable *table = GetEventTable();
#if wxUSE_GUI && wxUSE_VALIDATORS
// Try the associated validator first, if this is a window.
// Problem: if the event handler of the window has been replaced,
// this wxEvtHandler may no longer be a window.
// Therefore validators won't be processed if the handler
// has been replaced with SetEventHandler.
// THIS CAN BE CURED if PushEventHandler is used instead of
// SetEventHandler, and then processing will be passed down the
// chain of event handlers.
if (m_isWindow)
{
wxWindow *win = (wxWindow *)this;
// Can only use the validator of the window which
// is receiving the event
if ( win == event.GetEventObject() )
{
wxValidator *validator = win->GetValidator();
if ( validator && validator->ProcessEvent(event) )
{
return TRUE;
}
}
}
#endif
// Search upwards through the inheritance hierarchy
while (table)
{
if ( SearchEventTable((wxEventTable&)*table, event) )
return TRUE;
table = table->baseTable;
}
}
// Try going down the event handler chain
if ( GetNextHandler() )
{
if ( GetNextHandler()->ProcessEvent(event) )
return TRUE;
}
#if wxUSE_GUI
// Carry on up the parent-child hierarchy, but only if event is a command
// event: it wouldn't make sense for a parent to receive a child's size
// event, for example
if ( m_isWindow && event.IsCommandEvent() )
{
wxWindow *win = (wxWindow *)this;
// honour the requests to stop propagation at this window: this is
// used by the dialogs, for example, to prevent processing the events
// from the dialog controls in the parent frame which rarely, if ever,
// makes sense
if ( !(win->GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) )
{
wxWindow *parent = win->GetParent();
if ( parent && !parent->IsBeingDeleted() )
return parent->GetEventHandler()->ProcessEvent(event);
}
}
#endif // wxUSE_GUI
// Last try - application object.
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::SearchEventTable(wxEventTable& table, wxEvent& event)
{
wxEventType eventType = event.GetEventType();
int eventId = event.GetId();
// BC++ doesn't like testing for m_fn without != 0
for ( int i = 0; table.entries[i].m_fn != 0; i++ )
{
// the line using reference exposes a bug in gcc: although it _seems_
// to work, it leads to weird crashes later on during program
// execution
#ifdef __GNUG__
wxEventTableEntry entry = table.entries[i];
#else
const wxEventTableEntry& entry = table.entries[i];
#endif
// 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 ( eventType == entry.m_eventType )
{
int tableId1 = entry.m_id,
tableId2 = entry.m_lastId;
if ( (tableId1 == -1) ||
(tableId2 == -1 && eventId == tableId1) ||
(tableId2 != -1 &&
(eventId >= tableId1 && eventId <= tableId2)) )
{
event.Skip(FALSE);
event.m_callbackUserData = entry.m_callbackUserData;
(this->*((wxEventFunction) (entry.m_fn)))(event);
return !event.GetSkipped();
}
}
}
return FALSE;
}
void wxEvtHandler::Connect( int id, int lastId,
int eventType,
wxObjectEventFunction func,
wxObject *userData )
{
#if WXWIN_COMPATIBILITY_EVENT_TYPES
wxEventTableEntry *entry = new wxEventTableEntry;
entry->m_eventType = eventType;
entry->m_id = id;
entry->m_lastId = lastId;
entry->m_fn = func;
entry->m_callbackUserData = userData;
#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
wxDynamicEventTableEntry *entry =
new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
if (!m_dynamicEvents)
m_dynamicEvents = new wxList;
m_dynamicEvents->Append( (wxObject*) entry );
}
bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
wxObjectEventFunction func,
wxObject *userData )
{
if (!m_dynamicEvents)
return FALSE;
wxNode *node = m_dynamicEvents->First();
while (node)
{
#if WXWIN_COMPATIBILITY_EVENT_TYPES
wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
if ((entry->m_id == id) &&
((entry->m_lastId == lastId) || (lastId == -1)) &&
((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
{
if (entry->m_callbackUserData)
delete entry->m_callbackUserData;
m_dynamicEvents->DeleteNode( node );
delete entry;
return TRUE;
}
node = node->Next();
}
return FALSE;
}
bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
{
wxCHECK_MSG( m_dynamicEvents, FALSE,
wxT("caller should check that we have dynamic events") );
int commandId = event.GetId();
wxNode *node = m_dynamicEvents->First();
while (node)
{
#if WXWIN_COMPATIBILITY_EVENT_TYPES
wxEventTableEntry *entry = (wxEventTableEntry*)node->Data();
#else // !WXWIN_COMPATIBILITY_EVENT_TYPES
wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->Data();
#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
if (entry->m_fn)
{
// Match, if event spec says any id will do (id == -1)
if ( (event.GetEventType() == entry->m_eventType) &&
(entry->m_id == -1 ||
(entry->m_lastId == -1 && commandId == entry->m_id) ||
(entry->m_lastId != -1 &&
(commandId >= entry->m_id && commandId <= entry->m_lastId))) )
{
event.Skip(FALSE);
event.m_callbackUserData = entry->m_callbackUserData;
(this->*((wxEventFunction) (entry->m_fn)))(event);
if (event.GetSkipped())
return FALSE;
else
return TRUE;
}
}
node = node->Next();
}
return FALSE;
};
void wxEvtHandler::DoSetClientObject( wxClientData *data )
{
wxASSERT_MSG( m_clientDataType != wxClientData_Void,
wxT("can't have both object and void client data") );
if ( m_clientObject )
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;
}
#if WXWIN_COMPATIBILITY
bool wxEvtHandler::OnClose()
{
if (GetNextHandler())
return GetNextHandler()->OnClose();
else
return FALSE;
}
#endif // WXWIN_COMPATIBILITY
#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 == (wxWindow*) NULL)
focusWin = (wxWindow*) NULL;
return focusWin;
}
#endif // wxUSE_GUI
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