X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f5419957e5794f2d10f4e125f77b2c2e2cd222d6..109c7768eb46ccbb45adc1c409fe8f6b7d799e2f:/src/common/event.cpp diff --git a/src/common/event.cpp b/src/common/event.cpp index de088d74f0..60d6cf3dcb 100644 --- a/src/common/event.cpp +++ b/src/common/event.cpp @@ -6,75 +6,288 @@ // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + #ifdef __GNUG__ -#pragma implementation "event.h" + #pragma implementation "event.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include "wx/defs.h" -#include "wx/control.h" -#include "wx/utils.h" -#include "wx/app.h" -#include "wx/dc.h" + #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" -#include "wx/validate.h" -#if !USE_SHARED_LIBRARY +#if wxUSE_GUI + #include "wx/validate.h" +#endif // wxUSE_GUI + +// ---------------------------------------------------------------------------- +// wxWin macros +// ---------------------------------------------------------------------------- + IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) -IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent) -IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent) -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(wxSysColourChangedEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent) -IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent) -IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent) -IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent) - -const wxEventTable *wxEvtHandler::GetEventTable() const { return &wxEvtHandler::sm_eventTable; } + +#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[] = { { 0, 0, 0, -#ifdef __SGI_CC__ -// stupid SGI compiler --- offer aug 98 - 0L } -#else - NULL } -#endif -}; + { (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, @@ -84,44 +297,73 @@ const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] = { { 0, 0, 0, * */ -wxEvent::wxEvent(int theId) +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) { - m_eventType = wxEVT_NULL; - m_eventObject = (wxObject *) NULL; - m_eventHandle = (char *) NULL; - m_timeStamp = 0; - m_id = theId; - m_skipped = FALSE; - m_callbackUserData = (wxObject *) NULL; } +#if wxUSE_GUI + /* * Command events * */ wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId) + : wxEvent(theId, commandType) { - m_eventType = commandType; - m_clientData = (char *) NULL; - m_clientObject = (wxClientData *) NULL; - m_extraLong = 0; - m_commandInt = 0; - m_id = theId; - m_commandString = (char *) NULL; + 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) +wxScrollEvent::wxScrollEvent(wxEventType commandType, + int id, + int pos, + int orient) + : wxCommandEvent(commandType, id) { - m_extraLong = orient; - m_commandInt = pos; + 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 @@ -130,108 +372,153 @@ wxScrollEvent::wxScrollEvent(wxEventType commandType, int id, int pos, int orien 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_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_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: - return FALSE; - } - // NOTREACHED + 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: - return FALSE; - } - // NOTREACHED + 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: - return FALSE; - } - // NOTREACHED + 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: - return FALSE; - } - // NOTREACHED + 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: - return FALSE; - } - // NOTREACHED + 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 @@ -243,53 +530,205 @@ wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const /* - * Keyboard events + * 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_eventType = type; + m_shiftDown = FALSE; + m_controlDown = FALSE; + m_metaDown = FALSE; + m_altDown = FALSE; + m_keyCode = 0; + m_scanCode = 0; +} + + +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(void) +wxEvtHandler::wxEvtHandler() { - m_nextHandler = (wxEvtHandler *) NULL; - m_previousHandler = (wxEvtHandler *) NULL; - m_enabled = TRUE; - m_dynamicEvents = (wxList *) NULL; + 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(void) +wxEvtHandler::~wxEvtHandler() { - // Takes itself out of the list of handlers - if (m_previousHandler) - m_previousHandler->m_nextHandler = m_nextHandler; + // 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 (m_nextHandler) + m_nextHandler->m_previousHandler = m_previousHandler; + + if (m_dynamicEvents) { - wxEventTableEntry *entry = (wxEventTableEntry*)node->Data(); - if (entry->m_callbackUserData) delete entry->m_callbackUserData; - delete entry; - node = node->Next(); + 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(); } - delete m_dynamicEvents; - }; + +#if defined(__VISAGECPP__) + wxLEAVE_CRIT_SECT( m_eventsLocker); +#else + wxLEAVE_CRIT_SECT( *m_eventsLocker); +#endif } /* @@ -298,161 +737,377 @@ wxEvtHandler::~wxEvtHandler(void) bool wxEvtHandler::ProcessEvent(wxEvent& event) { - // An event handler can be enabled or disabled - if ( GetEvtHandlerEnabled() ) - { - // Handle per-instance dynamic event tables first - - if (SearchDynamicEventTable( event )) return TRUE; - - // Then static per-class event tables - - const wxEventTable *table = GetEventTable(); - - // 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 (IsKindOf(CLASSINFO(wxWindow))) +#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) ) { - wxWindow *win = (wxWindow *)this; + wxString msg = GetClassInfo()->GetClassName(); + msg += _T(" should [not] be a window but it is [not]"); - // Can only use the validator of the window which - // is receiving the event - if ( (win == event.GetEventObject()) && - win->GetValidator() && - win->GetValidator()->ProcessEvent(event)) - return TRUE; + 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 } - // Search upwards through the inheritance hierarchy - while (table) + // An event handler can be enabled or disabled + if ( GetEvtHandlerEnabled() ) { - if (SearchEventTable((wxEventTable&)*table, event)) - return TRUE; - table = table->baseTable; + +#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() ) - { + // Try going down the event handler chain + if ( GetNextHandler() ) + { if ( GetNextHandler()->ProcessEvent(event) ) return TRUE; - } - - // 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 (IsKindOf(CLASSINFO(wxWindow)) && event.IsKindOf(CLASSINFO(wxCommandEvent))) - { - wxWindow *win = (wxWindow *)this; - wxWindow *parent = win->GetParent(); - if (parent && !parent->IsBeingDeleted()) - return win->GetParent()->GetEventHandler()->ProcessEvent(event); - } - - // Last try - application object. - // 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 (wxTheApp && this != wxTheApp && (event.GetEventType() != wxEVT_IDLE) && wxTheApp->ProcessEvent(event)) - return TRUE; - else + } + +#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) { - int i = 0; - int commandId = event.GetId(); - - // BC++ doesn't like while (table.entries[i].m_fn) + wxEventType eventType = event.GetEventType(); + int eventId = event.GetId(); - while (table.entries[i].m_fn != 0L) - { - if ((event.GetEventType() == table.entries[i].m_eventType) && - (table.entries[i].m_id == -1 || // Match, if event spec says any id will do (id == -1) - (table.entries[i].m_lastId == -1 && commandId == table.entries[i].m_id) || - (table.entries[i].m_lastId != -1 && - (commandId >= table.entries[i].m_id && commandId <= table.entries[i].m_lastId)))) + // BC++ doesn't like testing for m_fn without != 0 + for ( int i = 0; table.entries[i].m_fn != 0; i++ ) { - event.Skip(FALSE); - event.m_callbackUserData = table.entries[i].m_callbackUserData; - - (this->*((wxEventFunction) (table.entries[i].m_fn)))(event); - - if ( event.GetSkipped() ) - return FALSE; - else - return TRUE; + // 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(); + } + } } - i ++; - } - return FALSE; + + return FALSE; } void wxEvtHandler::Connect( int id, int lastId, int eventType, - wxObjectEventFunction func, - wxObject *userData ) -{ - wxEventTableEntry *entry = new wxEventTableEntry; - entry->m_id = id; - entry->m_lastId = lastId; - entry->m_eventType = eventType; - entry->m_fn = func; - entry->m_callbackUserData = userData; - - if (!m_dynamicEvents) - m_dynamicEvents = new wxList; - - m_dynamicEvents->Append( (wxObject*) entry ); + 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::SearchDynamicEventTable( wxEvent& event ) +bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, + wxObjectEventFunction func, + wxObject *userData ) { - if (!m_dynamicEvents) return FALSE; - - int commandId = event.GetId(); + if (!m_dynamicEvents) + return FALSE; - wxNode *node = m_dynamicEvents->First(); - while (node) - { - wxEventTableEntry *entry = (wxEventTableEntry*)node->Data(); - - if (entry->m_fn) + wxNode *node = m_dynamicEvents->First(); + while (node) { - if ((event.GetEventType() == entry->m_eventType) && - (entry->m_id == -1 || // Match, if event spec says any id will do (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 +#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(); } - node = node->Next(); - } - return FALSE; + return FALSE; }; -bool wxEvtHandler::OnClose(void) +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 { - if (GetNextHandler()) return GetNextHandler()->OnClose(); - else return FALSE; + // 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