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Correct weak ref usage which triggered an assert
[wxWidgets.git] / src / common / event.cpp
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c801d85f 1/////////////////////////////////////////////////////////////////////////////
c54de5ae 2// Name: src/common/event.cpp
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3// Purpose: Event classes
4// Author: Julian Smart
5// Modified by:
6// Created: 01/02/97
7// RCS-ID: $Id$
55d99c7a 8// Copyright: (c) Julian Smart
65571936 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
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20// For compilers that support precompilation, includes "wx.h".
21#include "wx/wxprec.h"
22
23#ifdef __BORLANDC__
0b746ba8 24 #pragma hdrstop
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25#endif
26
d5da0ce7 27#include "wx/event.h"
937013e0 28#include "wx/evtloop.h"
d5da0ce7 29
c801d85f 30#ifndef WX_PRECOMP
e90c1d2a 31 #include "wx/list.h"
8ecff181 32 #include "wx/app.h"
de6185e2 33 #include "wx/utils.h"
bb90a3e6 34 #include "wx/stopwatch.h"
02761f6c 35 #include "wx/module.h"
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36
37 #if wxUSE_GUI
a8ff046b 38 #include "wx/window.h"
e90c1d2a 39 #include "wx/control.h"
e90c1d2a 40 #include "wx/dc.h"
75a29298 41 #include "wx/textctrl.h"
264cb7f5 42 #include "wx/validate.h"
e90c1d2a 43 #endif // wxUSE_GUI
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44#endif
45
204abcd4 46#include "wx/thread.h"
47b6fabc 47
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48#if wxUSE_BASE
49 #include "wx/ptr_scpd.h"
50
51 wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr)
52 wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr)
53#endif // wxUSE_BASE
204abcd4 54
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55// ----------------------------------------------------------------------------
56// wxWin macros
57// ----------------------------------------------------------------------------
58
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59#if wxUSE_BASE
60 IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
61 IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
b46b1d59 62 IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
3ed2104c 63#endif // wxUSE_BASE
e90c1d2a 64
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65#if wxUSE_GUI
66 IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
67 IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
68 IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
69 IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
70 IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
71 IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
72 IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
73 IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
1e6feb95 74 IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
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75 IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
76 IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
77 IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
456bc6d9 78 IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
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79 IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
80 IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
81 IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
82 IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
83 IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
84 IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
85 IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
86 IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
87 IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
8e72b8b5 88 IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
23f681ec 89 IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
574c939e 90 IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
23f681ec 91 IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
75299490 92 IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
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93 IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
94 IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
95 IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
96 IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
b96340e6 97 IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
69231000 98 IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
a5e84126 99 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
63e819f2 100 IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent)
78c91815 101 IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent)
23f681ec 102#endif // wxUSE_GUI
0b746ba8 103
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104#if wxUSE_BASE
105
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106const wxEventTable *wxEvtHandler::GetEventTable() const
107 { return &wxEvtHandler::sm_eventTable; }
0b746ba8 108
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109const wxEventTable wxEvtHandler::sm_eventTable =
110 { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
0b746ba8 111
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112wxEventHashTable &wxEvtHandler::GetEventHashTable() const
113 { return wxEvtHandler::sm_eventHashTable; }
114
115wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
116
23f681ec 117const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
9aaf9bed 118 { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
c801d85f 119
1a18887b 120
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121// wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
122// leaked, so we need to manually clean up all event tables before checking for
123// the memory leaks when using it, however this breaks re-initializing the
124// library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
125// event tables won't be rebuilt the next time, so disable this by default
aa767a45 126#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
a0826b11 127
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128class wxEventTableEntryModule: public wxModule
129{
afa039f9 130public:
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131 wxEventTableEntryModule() { }
132 virtual bool OnInit() { return true; }
133 virtual void OnExit() { wxEventHashTable::ClearAll(); }
134
135 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
afa039f9 136};
a0826b11 137
afa039f9 138IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
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139
140#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
1a18887b 141
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142// ----------------------------------------------------------------------------
143// global variables
144// ----------------------------------------------------------------------------
145
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146// List containing event handlers with pending events (each handler can occur
147// at most once here)
148wxList *wxPendingEvents = NULL;
8e193f38 149
7214297d 150#if wxUSE_THREADS
8e193f38 151 // protects wxPendingEvents list
19c4d916 152 wxCriticalSection *wxPendingEventsLocker = NULL;
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153#endif
154
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155// common event types are defined here, other event types are defined by the
156// components which use them
b5a98acd 157
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158const wxEventType wxEVT_FIRST = 10000;
159const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
2e4df4bf 160
461697c2 161DEFINE_EVENT_TYPE(wxEVT_NULL)
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162DEFINE_EVENT_TYPE(wxEVT_IDLE)
163DEFINE_EVENT_TYPE(wxEVT_SOCKET)
c2ca375c 164DEFINE_EVENT_TYPE(wxEVT_TIMER)
886dd7d2 165
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166#endif // wxUSE_BASE
167
168#if wxUSE_GUI
169
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170DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
171DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
172DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
173DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
174DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
175DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
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176DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
177DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
178DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
179DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
180DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
181DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
182DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
183DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
184DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
185DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
8cd6a9ad 186DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED)
a9a0ceca 187DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED)
0b5eceb6 188
0b5eceb6 189// Mouse event types
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190DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
191DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
192DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
193DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
194DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
195DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
196DEFINE_EVENT_TYPE(wxEVT_MOTION)
197DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
198DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
199DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
200DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
201DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
202DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
203DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
456bc6d9 204DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
d2c52078 205DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
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206DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN)
207DEFINE_EVENT_TYPE(wxEVT_AUX1_UP)
208DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK)
209DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN)
210DEFINE_EVENT_TYPE(wxEVT_AUX2_UP)
211DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK)
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212
213// Non-client mouse events
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214DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
215DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
216DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
217DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
218DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
219DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
220DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
221DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
222DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
223DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
224DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
225DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
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226
227// Character input event type
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228DEFINE_EVENT_TYPE(wxEVT_CHAR)
229DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
230DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
231DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
232DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
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233#if wxUSE_HOTKEY
234DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
235#endif
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236
237// Set cursor event
2e4df4bf 238DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
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239
240// wxScrollbar and wxSlider event identifiers
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241DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
242DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
243DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
244DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
245DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
246DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
247DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
248DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
d15b1f85 249DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
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250
251// Scroll events from wxWindow
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252DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
253DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
254DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
255DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
256DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
257DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
258DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
259DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
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260
261// System events
2e4df4bf 262DEFINE_EVENT_TYPE(wxEVT_SIZE)
5706de1c 263DEFINE_EVENT_TYPE(wxEVT_SIZING)
2e4df4bf 264DEFINE_EVENT_TYPE(wxEVT_MOVE)
5706de1c 265DEFINE_EVENT_TYPE(wxEVT_MOVING)
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266DEFINE_EVENT_TYPE(wxEVT_MOVE_START)
267DEFINE_EVENT_TYPE(wxEVT_MOVE_END)
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268DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
269DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
270DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
afafd942 271DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
2e4df4bf 272DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
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273DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
274DEFINE_EVENT_TYPE(wxEVT_CREATE)
275DEFINE_EVENT_TYPE(wxEVT_DESTROY)
276DEFINE_EVENT_TYPE(wxEVT_SHOW)
277DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
278DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
279DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
63e819f2 280DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST)
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281DEFINE_EVENT_TYPE(wxEVT_PAINT)
282DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
283DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
284DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
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285DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
286DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
2e4df4bf 287DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
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288DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
289DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
574c939e 290DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
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291DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
292DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
293DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
294DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
295DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
296DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
297DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
298DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
299DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
300DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
301DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
302DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
2e4df4bf 303DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
0b5eceb6 304
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305// Clipboard events
306DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY)
307DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT)
308DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE)
309
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310// Generic command events
311// Note: a click is a higher-level event than button down/up
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312DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
313DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
314DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
315DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
316DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
317DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
318DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
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319
320// Help events
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321DEFINE_EVENT_TYPE(wxEVT_HELP)
322DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
6164f93c 323
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324#endif // wxUSE_GUI
325
326#if wxUSE_BASE
327
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328wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
329
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330// ============================================================================
331// implementation
332// ============================================================================
0b5eceb6 333
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334// ----------------------------------------------------------------------------
335// event initialization
336// ----------------------------------------------------------------------------
337
338int wxNewEventType()
339{
340 // MT-FIXME
341 static int s_lastUsedEventType = wxEVT_FIRST;
342
343 return s_lastUsedEventType++;
344}
345
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346// ----------------------------------------------------------------------------
347// wxEvent
348// ----------------------------------------------------------------------------
349
c801d85f 350/*
77ffb593 351 * General wxWidgets events, covering
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352 * all interesting things that might happen (button clicking, resizing,
353 * setting text in widgets, etc.).
354 *
355 * For each completely new event type, derive a new event class.
356 *
357 */
358
8e72b8b5 359wxEvent::wxEvent(int theId, wxEventType commandType )
c801d85f 360{
8e72b8b5 361 m_eventType = commandType;
0b746ba8 362 m_eventObject = (wxObject *) NULL;
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363 m_timeStamp = 0;
364 m_id = theId;
1c624631 365 m_skipped = false;
0b746ba8 366 m_callbackUserData = (wxObject *) NULL;
1c624631 367 m_isCommandEvent = false;
1648d51b 368 m_propagationLevel = wxEVENT_PROPAGATE_NONE;
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369}
370
8e72b8b5 371wxEvent::wxEvent(const wxEvent &src)
a34ef99b 372 : wxObject(src)
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373 , m_eventObject(src.m_eventObject)
374 , m_eventType(src.m_eventType)
375 , m_timeStamp(src.m_timeStamp)
376 , m_id(src.m_id)
377 , m_callbackUserData(src.m_callbackUserData)
6fd5903a 378 , m_propagationLevel(src.m_propagationLevel)
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379 , m_skipped(src.m_skipped)
380 , m_isCommandEvent(src.m_isCommandEvent)
a737331d 381{
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382}
383
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384#endif // wxUSE_BASE
385
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386#if wxUSE_GUI
387
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388/*
389 * Command events
390 *
391 */
392
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393#ifdef __VISUALC__
394 // 'this' : used in base member initializer list (for m_commandString)
395 #pragma warning(disable:4355)
396#endif
397
7798a18e 398wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
b5a98acd 399 : wxEvent(theId, commandType)
c801d85f 400{
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401 m_clientData = (char *) NULL;
402 m_clientObject = (wxClientData *) NULL;
403 m_extraLong = 0;
404 m_commandInt = 0;
1c624631 405 m_isCommandEvent = true;
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406
407 // the command events are propagated upwards by default
408 m_propagationLevel = wxEVENT_PROPAGATE_MAX;
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409}
410
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411#ifdef __VISUALC__
412 #pragma warning(default:4355)
413#endif
414
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415wxString wxCommandEvent::GetString() const
416{
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417 if (m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
418 {
ab1931f9 419 return m_cmdString;
cc6ceca7 420 }
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421 else
422 {
89438177 423#if wxUSE_TEXTCTRL
ab1931f9 424 wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
cc6ceca7 425 if ( txt )
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426 return txt->GetValue();
427 else
89438177 428#endif // wxUSE_TEXTCTRL
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429 return m_cmdString;
430 }
431}
432
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433/*
434 * UI update events
435 */
436
437#if wxUSE_LONGLONG
e39af974 438wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
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439#endif
440
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441long wxUpdateUIEvent::sm_updateInterval = 0;
442
443wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
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444
445// Can we update?
a7bc03c9 446bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
0b30bb0b 447{
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448 // Don't update if we've switched global updating off
449 // and this window doesn't support updates.
450 if (win &&
451 (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
452 ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
1c624631 453 return false;
b5a98acd 454
e39af974 455 if (sm_updateInterval == -1)
1c624631 456 return false;
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457
458 if (sm_updateInterval == 0)
1c624631 459 return true;
534b127c 460
0b30bb0b 461#if wxUSE_STOPWATCH && wxUSE_LONGLONG
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462 wxLongLong now = wxGetLocalTimeMillis();
463 if (now > (sm_lastUpdate + sm_updateInterval))
464 {
1c624631 465 return true;
0b30bb0b 466 }
534b127c 467
1c624631 468 return false;
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469#else
470 // If we don't have wxStopWatch or wxLongLong, we
471 // should err on the safe side and update now anyway.
472 return true;
473#endif
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474}
475
476// Reset the update time to provide a delay until the next
477// time we should update
478void wxUpdateUIEvent::ResetUpdateTime()
479{
480#if wxUSE_STOPWATCH && wxUSE_LONGLONG
e39af974 481 if (sm_updateInterval > 0)
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482 {
483 wxLongLong now = wxGetLocalTimeMillis();
e39af974 484 if (now > (sm_lastUpdate + sm_updateInterval))
0b30bb0b 485 {
e39af974 486 sm_lastUpdate = now;
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487 }
488 }
489#endif
490}
491
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492/*
493 * Scroll events
494 */
495
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496wxScrollEvent::wxScrollEvent(wxEventType commandType,
497 int id,
498 int pos,
499 int orient)
e6a6feba 500 : wxCommandEvent(commandType, id)
c801d85f 501{
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502 m_extraLong = orient;
503 m_commandInt = pos;
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504}
505
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506/*
507 * ScrollWin events
508 */
509
510wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
511 int pos,
512 int orient)
d1367c3d 513{
c5b42c87 514 m_eventType = commandType;
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515 m_extraLong = orient;
516 m_commandInt = pos;
517}
518
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519/*
520 * Mouse events
521 *
522 */
523
7798a18e 524wxMouseEvent::wxMouseEvent(wxEventType commandType)
c801d85f 525{
0b746ba8 526 m_eventType = commandType;
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527
528 m_x = 0;
529 m_y = 0;
530
1c624631 531 m_leftDown = false;
1c624631 532 m_middleDown = false;
8866abbb 533 m_rightDown = false;
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534 m_aux1Down = false;
535 m_aux2Down = false;
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536
537 m_controlDown = false;
538 m_shiftDown = false;
539 m_altDown = false;
540 m_metaDown = false;
541
542 m_clickCount = -1;
543
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544 m_wheelRotation = 0;
545 m_wheelDelta = 0;
546 m_linesPerAction = 0;
aea37008 547 m_wheelAxis = 0;
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548}
549
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550void wxMouseEvent::Assign(const wxMouseEvent& event)
551{
9a1725c4 552 m_eventType = event.m_eventType;
92309201 553
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554 m_x = event.m_x;
555 m_y = event.m_y;
556
557 m_leftDown = event.m_leftDown;
558 m_middleDown = event.m_middleDown;
559 m_rightDown = event.m_rightDown;
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560 m_aux1Down = event.m_aux1Down;
561 m_aux2Down = event.m_aux2Down;
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562
563 m_controlDown = event.m_controlDown;
564 m_shiftDown = event.m_shiftDown;
565 m_altDown = event.m_altDown;
566 m_metaDown = event.m_metaDown;
567
568 m_wheelRotation = event.m_wheelRotation;
569 m_wheelDelta = event.m_wheelDelta;
570 m_linesPerAction = event.m_linesPerAction;
aea37008 571 m_wheelAxis = event.m_wheelAxis;
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572}
573
3e89999c 574// return true if was a button dclick event
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575bool wxMouseEvent::ButtonDClick(int but) const
576{
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577 switch (but)
578 {
3e89999c
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579 default:
580 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
581 // fall through
582
583 case wxMOUSE_BTN_ANY:
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584 return (LeftDClick() || MiddleDClick() || RightDClick() ||
585 Aux1DClick() || Aux2DClick());
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586
587 case wxMOUSE_BTN_LEFT:
0b746ba8 588 return LeftDClick();
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589
590 case wxMOUSE_BTN_MIDDLE:
0b746ba8 591 return MiddleDClick();
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592
593 case wxMOUSE_BTN_RIGHT:
0b746ba8 594 return RightDClick();
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595
596 case wxMOUSE_BTN_AUX1:
597 return Aux1DClick();
598
599 case wxMOUSE_BTN_AUX2:
600 return Aux2DClick();
0b746ba8 601 }
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602}
603
3e89999c 604// return true if was a button down event
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605bool wxMouseEvent::ButtonDown(int but) const
606{
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607 switch (but)
608 {
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609 default:
610 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
611 // fall through
612
613 case wxMOUSE_BTN_ANY:
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614 return (LeftDown() || MiddleDown() || RightDown() ||
615 Aux1Down() || Aux2Down());
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616
617 case wxMOUSE_BTN_LEFT:
0b746ba8 618 return LeftDown();
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619
620 case wxMOUSE_BTN_MIDDLE:
0b746ba8 621 return MiddleDown();
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622
623 case wxMOUSE_BTN_RIGHT:
0b746ba8 624 return RightDown();
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625
626 case wxMOUSE_BTN_AUX1:
627 return Aux1Down();
628
629 case wxMOUSE_BTN_AUX2:
630 return Aux2Down();
0b746ba8 631 }
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632}
633
3e89999c 634// return true if was a button up event
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635bool wxMouseEvent::ButtonUp(int but) const
636{
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637 switch (but)
638 {
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639 default:
640 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
641 // fall through
642
643 case wxMOUSE_BTN_ANY:
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644 return (LeftUp() || MiddleUp() || RightUp() ||
645 Aux1Up() || Aux2Up());
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646
647 case wxMOUSE_BTN_LEFT:
0b746ba8 648 return LeftUp();
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649
650 case wxMOUSE_BTN_MIDDLE:
0b746ba8 651 return MiddleUp();
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652
653 case wxMOUSE_BTN_RIGHT:
0b746ba8 654 return RightUp();
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655
656 case wxMOUSE_BTN_AUX1:
657 return Aux1Up();
658
659 case wxMOUSE_BTN_AUX2:
660 return Aux2Up();
0b746ba8 661 }
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662}
663
3e89999c 664// return true if the given button is currently changing state
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665bool wxMouseEvent::Button(int but) const
666{
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667 switch (but)
668 {
0b746ba8 669 default:
223d09f6 670 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
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671 // fall through
672
673 case wxMOUSE_BTN_ANY:
674 return ButtonUp(wxMOUSE_BTN_ANY) ||
675 ButtonDown(wxMOUSE_BTN_ANY) ||
676 ButtonDClick(wxMOUSE_BTN_ANY);
677
678 case wxMOUSE_BTN_LEFT:
679 return LeftDown() || LeftUp() || LeftDClick();
680
681 case wxMOUSE_BTN_MIDDLE:
682 return MiddleDown() || MiddleUp() || MiddleDClick();
683
684 case wxMOUSE_BTN_RIGHT:
685 return RightDown() || RightUp() || RightDClick();
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686
687 case wxMOUSE_BTN_AUX1:
688 return Aux1Down() || Aux1Up() || Aux1DClick();
689
690 case wxMOUSE_BTN_AUX2:
691 return Aux2Down() || Aux2Up() || Aux2DClick();
0b746ba8 692 }
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693}
694
695bool wxMouseEvent::ButtonIsDown(int but) const
696{
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697 switch (but)
698 {
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699 default:
700 wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
701 // fall through
702
703 case wxMOUSE_BTN_ANY:
01101e2d 704 return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
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705
706 case wxMOUSE_BTN_LEFT:
0b746ba8 707 return LeftIsDown();
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708
709 case wxMOUSE_BTN_MIDDLE:
0b746ba8 710 return MiddleIsDown();
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711
712 case wxMOUSE_BTN_RIGHT:
0b746ba8 713 return RightIsDown();
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714
715 case wxMOUSE_BTN_AUX1:
716 return Aux1IsDown();
717
718 case wxMOUSE_BTN_AUX2:
719 return Aux2IsDown();
0b746ba8 720 }
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721}
722
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723int wxMouseEvent::GetButton() const
724{
01101e2d 725 for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
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726 {
727 if ( Button(i) )
728 {
729 return i;
730 }
731 }
732
3e89999c 733 return wxMOUSE_BTN_NONE;
1e6feb95
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734}
735
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736// Find the logical position of the event given the DC
737wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
738{
0757d27c
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739 wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
740 return pt;
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741}
742
743
744/*
8e72b8b5 745 * Keyboard event
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746 *
747 */
748
7798a18e 749wxKeyEvent::wxKeyEvent(wxEventType type)
c801d85f 750{
0b746ba8 751 m_eventType = type;
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752 m_shiftDown = false;
753 m_controlDown = false;
754 m_metaDown = false;
755 m_altDown = false;
0b746ba8 756 m_keyCode = 0;
b0e813a0 757 m_scanCode = 0;
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758#if wxUSE_UNICODE
759 m_uniChar = 0;
760#endif
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761}
762
92309201 763wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
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764 : wxEvent(evt)
765{
766 m_x = evt.m_x;
767 m_y = evt.m_y;
768
769 m_keyCode = evt.m_keyCode;
770
771 m_controlDown = evt.m_controlDown;
772 m_shiftDown = evt.m_shiftDown;
773 m_altDown = evt.m_altDown;
774 m_metaDown = evt.m_metaDown;
775 m_scanCode = evt.m_scanCode;
776 m_rawCode = evt.m_rawCode;
777 m_rawFlags = evt.m_rawFlags;
92309201 778
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779#if wxUSE_UNICODE
780 m_uniChar = evt.m_uniChar;
781#endif
782}
12a3f227 783
42e69d6b 784wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
42e69d6b 785{
cfe17b74 786 SetEventType(wxEVT_CREATE);
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787 SetEventObject(win);
788}
789
790wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
42e69d6b 791{
cfe17b74 792 SetEventType(wxEVT_DESTROY);
42e69d6b
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793 SetEventObject(win);
794}
795
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796wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
797 : wxCommandEvent(wxEVT_CHILD_FOCUS)
798{
799 SetEventObject(win);
800}
801
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802// ----------------------------------------------------------------------------
803// wxHelpEvent
804// ----------------------------------------------------------------------------
805
806/* static */
807wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin)
808{
809 if ( origin == Origin_Unknown )
810 {
811 // assume that the event comes from the help button if it's not from
812 // keyboard and that pressing F1 always results in the help event
813 origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton;
814 }
815
816 return origin;
817}
818
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819#endif // wxUSE_GUI
820
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821
822#if wxUSE_BASE
823
b5a98acd
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824// ----------------------------------------------------------------------------
825// wxEventHashTable
826// ----------------------------------------------------------------------------
827
afa039f9
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828static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
829
830wxEventHashTable* wxEventHashTable::sm_first = NULL;
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831
832wxEventHashTable::wxEventHashTable(const wxEventTable &table)
833 : m_table(table),
1c624631 834 m_rebuildHash(true)
b5a98acd
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835{
836 AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
1a18887b 837
afa039f9
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838 m_next = sm_first;
839 if (m_next)
840 m_next->m_previous = this;
841 sm_first = this;
b5a98acd
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842}
843
844wxEventHashTable::~wxEventHashTable()
afa039f9
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845{
846 if (m_next)
847 m_next->m_previous = m_previous;
848 if (m_previous)
849 m_previous->m_next = m_next;
850 if (sm_first == this)
851 sm_first = m_next;
1a18887b 852
afa039f9
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853 Clear();
854}
855
856void wxEventHashTable::Clear()
b5a98acd 857{
a0826b11 858 for ( size_t i = 0; i < m_size; i++ )
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859 {
860 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
a0826b11 861 delete eTTnode;
b5a98acd
VZ
862 }
863
a0826b11 864 delete[] m_eventTypeTable;
afa039f9 865 m_eventTypeTable = NULL;
a0826b11 866
afa039f9
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867 m_size = 0;
868}
869
aa767a45 870#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
a0826b11 871
afa039f9
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872// Clear all tables
873void wxEventHashTable::ClearAll()
874{
875 wxEventHashTable* table = sm_first;
876 while (table)
877 {
878 table->Clear();
879 table = table->m_next;
880 }
b5a98acd
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881}
882
a0826b11
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883#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
884
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885bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
886{
887 if (m_rebuildHash)
888 {
889 InitHashTable();
1c624631 890 m_rebuildHash = false;
b5a98acd 891 }
1a18887b 892
afa039f9 893 if (!m_eventTypeTable)
1a18887b 894 return false;
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895
896 // Find all entries for the given event type.
897 wxEventType eventType = event.GetEventType();
898 const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
899 if (eTTnode && eTTnode->eventType == eventType)
900 {
901 // Now start the search for an event handler
902 // that can handle an event with the given ID.
1c624631
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903 const wxEventTableEntryPointerArray&
904 eventEntryTable = eTTnode->eventEntryTable;
b5a98acd 905
1c624631
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906 const size_t count = eventEntryTable.GetCount();
907 for (size_t n = 0; n < count; n++)
b5a98acd 908 {
1c624631
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909 if ( wxEvtHandler::
910 ProcessEventIfMatches(*eventEntryTable[n], self, event) )
b5a98acd 911 {
1c624631 912 return true;
b5a98acd
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913 }
914 }
b5a98acd
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915 }
916
1c624631 917 return false;
b5a98acd
VZ
918}
919
920void wxEventHashTable::InitHashTable()
921{
922 // Loop over the event tables and all its base tables.
923 const wxEventTable *table = &m_table;
924 while (table)
925 {
926 // Retrieve all valid event handler entries
927 const wxEventTableEntry *entry = table->entries;
928 while (entry->m_fn != 0)
929 {
930 // Add the event entry in the Hash.
931 AddEntry(*entry);
932
933 entry++;
934 }
935
936 table = table->baseTable;
937 }
938
939 // Lets free some memory.
940 size_t i;
941 for(i = 0; i < m_size; i++)
942 {
943 EventTypeTablePointer eTTnode = m_eventTypeTable[i];
944 if (eTTnode)
945 {
946 eTTnode->eventEntryTable.Shrink();
947 }
948 }
949}
950
951void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
952{
afa039f9
JS
953 // This might happen 'accidentally' as the app is exiting
954 if (!m_eventTypeTable)
955 return;
1a18887b 956
b5a98acd
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957 EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
958 EventTypeTablePointer eTTnode = *peTTnode;
959
960 if (eTTnode)
961 {
962 if (eTTnode->eventType != entry.m_eventType)
963 {
964 // Resize the table!
965 GrowEventTypeTable();
966 // Try again to add it.
967 AddEntry(entry);
968 return;
969 }
970 }
971 else
972 {
973 eTTnode = new EventTypeTable;
974 eTTnode->eventType = entry.m_eventType;
975 *peTTnode = eTTnode;
976 }
977
978 // Fill all hash entries between entry.m_id and entry.m_lastId...
979 eTTnode->eventEntryTable.Add(&entry);
980}
981
982void wxEventHashTable::AllocEventTypeTable(size_t size)
983{
984 m_eventTypeTable = new EventTypeTablePointer[size];
985 memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
986 m_size = size;
987}
988
989void wxEventHashTable::GrowEventTypeTable()
990{
991 size_t oldSize = m_size;
992 EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
993
994 // TODO: Search the most optimal grow sequence
995 AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
996
997 for ( size_t i = 0; i < oldSize; /* */ )
998 {
999 EventTypeTablePointer eTToldNode = oldEventTypeTable[i];
1000 if (eTToldNode)
1001 {
1002 EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
1003 EventTypeTablePointer eTTnode = *peTTnode;
1004
1005 // Check for collision, we don't want any.
1006 if (eTTnode)
1007 {
1008 GrowEventTypeTable();
1009 continue; // Don't increment the counter,
1010 // as we still need to add this element.
1011 }
1012 else
1013 {
1014 // Get the old value and put it in the new table.
1015 *peTTnode = oldEventTypeTable[i];
1016 }
1017 }
1018
1019 i++;
1020 }
1021
1022 delete[] oldEventTypeTable;
1023}
1024
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1025// ----------------------------------------------------------------------------
1026// wxEvtHandler
1027// ----------------------------------------------------------------------------
1028
c801d85f
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1029/*
1030 * Event handler
1031 */
1032
0b746ba8 1033wxEvtHandler::wxEvtHandler()
c801d85f 1034{
0b746ba8
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1035 m_nextHandler = (wxEvtHandler *) NULL;
1036 m_previousHandler = (wxEvtHandler *) NULL;
1c624631 1037 m_enabled = true;
0b746ba8 1038 m_dynamicEvents = (wxList *) NULL;
8e193f38 1039 m_pendingEvents = (wxList *) NULL;
aa767a45 1040
b88c44e7
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1041 // no client data (yet)
1042 m_clientData = NULL;
1043 m_clientDataType = wxClientData_None;
c801d85f
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1044}
1045
0b746ba8 1046wxEvtHandler::~wxEvtHandler()
c801d85f 1047{
0b746ba8
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1048 // Takes itself out of the list of handlers
1049 if (m_previousHandler)
1050 m_previousHandler->m_nextHandler = m_nextHandler;
1051
1052 if (m_nextHandler)
1053 m_nextHandler->m_previousHandler = m_previousHandler;
1054
1055 if (m_dynamicEvents)
fe71f65c 1056 {
3c448b2e
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1057 for ( wxList::iterator it = m_dynamicEvents->begin(),
1058 end = m_dynamicEvents->end();
1059 it != end;
1060 ++it )
0b746ba8 1061 {
df5168c4 1062 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
2e4df4bf 1063
4732e2dc 1064#if wxUSE_WEAKREF
cc6ceca7 1065 // Remove ourselves from sink destructor notifications
2ef989c9
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1066 // (this has usually been been done, in wxTrackable destructor)
1067 wxEvtHandler *eventSink = entry->m_eventSink;
cc6ceca7 1068 if ( eventSink )
2ef989c9 1069 {
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1070 wxEventConnectionRef * const
1071 evtConnRef = FindRefInTrackerList(eventSink);
1072 if ( evtConnRef )
1073 {
1074 eventSink->RemoveNode(evtConnRef);
1075 delete evtConnRef;
1076 }
2ef989c9 1077 }
4732e2dc 1078#endif // wxUSE_WEAKREF
cc6ceca7 1079
2e4df4bf
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1080 if (entry->m_callbackUserData)
1081 delete entry->m_callbackUserData;
0b746ba8 1082 delete entry;
0b746ba8
VZ
1083 }
1084 delete m_dynamicEvents;
1085 };
7214297d 1086
5875d39c
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1087 if (m_pendingEvents)
1088 m_pendingEvents->DeleteContents(true);
8e193f38 1089 delete m_pendingEvents;
7214297d 1090
083f7497 1091 // Remove us from wxPendingEvents if necessary.
5d9d1b88
RR
1092 if ( wxPendingEvents )
1093 {
364ab6cc 1094#if wxUSE_THREADS
cc6ceca7 1095 if (wxPendingEventsLocker)
19c4d916 1096 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
364ab6cc 1097#endif
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1098
1099 if ( wxPendingEvents->DeleteObject(this) )
1100 {
1101 // check that we were present only once in the list
1102 wxASSERT_MSG( !wxPendingEvents->Find(this),
1103 "Handler occurs twice in wxPendingEvents list" );
1104 }
1105 //else: we weren't in this list at all, it's ok
1106
364ab6cc 1107#if wxUSE_THREADS
cc6ceca7 1108 if (wxPendingEventsLocker)
19c4d916 1109 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
364ab6cc 1110#endif
083f7497 1111 }
b88c44e7
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1112
1113 // we only delete object data, not untyped
1114 if ( m_clientDataType == wxClientData_Object )
1115 delete m_clientObject;
c801d85f
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1116}
1117
7214297d 1118#if wxUSE_THREADS
aadbdf11 1119
76bfdc9a 1120bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event)
7214297d 1121{
7214297d 1122 // check that we are really in a child thread
8e193f38
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1123 wxASSERT_MSG( !wxThread::IsMain(),
1124 wxT("use ProcessEvent() in main thread") );
1125
1126 AddPendingEvent(event);
7214297d 1127
1c624631 1128 return true;
8e193f38
VZ
1129}
1130
1131#endif // wxUSE_THREADS
1132
76bfdc9a 1133void wxEvtHandler::AddPendingEvent(const wxEvent& event)
8e193f38 1134{
16c1f79c
RR
1135 // 1) Add event to list of pending events of this event handler
1136
7a5c8ac4
VZ
1137 wxEvent *eventCopy = event.Clone();
1138
1139 // we must be able to copy the events here so the event class must
1140 // implement Clone() properly instead of just providing a NULL stab for it
1141 wxCHECK_RET( eventCopy,
1142 _T("events of this type aren't supposed to be posted") );
1143
8ebec7dc 1144 wxENTER_CRIT_SECT( m_pendingEventsLock );
16c1f79c 1145
8e193f38
VZ
1146 if ( !m_pendingEvents )
1147 m_pendingEvents = new wxList;
7214297d 1148
7a5c8ac4 1149 m_pendingEvents->Append(eventCopy);
7214297d 1150
8ebec7dc 1151 wxLEAVE_CRIT_SECT( m_pendingEventsLock );
16c1f79c
RR
1152
1153 // 2) Add this event handler to list of event handlers that
1154 // have pending events.
cfe17b74 1155
b568d04f 1156 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
72cdf4c9 1157
8e193f38
VZ
1158 if ( !wxPendingEvents )
1159 wxPendingEvents = new wxList;
19c4d916
VZ
1160 if ( !wxPendingEvents->Find(this) )
1161 wxPendingEvents->Append(this);
72cdf4c9 1162
ce6d2511 1163 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
6164f93c 1164
90e572f1 1165 // 3) Inform the system that new pending events are somewhere,
16c1f79c 1166 // and that these should be processed in idle time.
bf9e3e73 1167 wxWakeUpIdle();
7214297d
GL
1168}
1169
1170void wxEvtHandler::ProcessPendingEvents()
1171{
8ebec7dc 1172 wxENTER_CRIT_SECT( m_pendingEventsLock );
8e193f38 1173
19c4d916
VZ
1174 // this method is only called by wxApp if this handler does have
1175 // pending events
1176 wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(),
1177 "should have pending events if called" );
5fa150e2 1178
19c4d916 1179 wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
47b6fabc 1180 wxEventPtr event(wx_static_cast(wxEvent *, node->GetData()));
5875d39c 1181
19c4d916
VZ
1182 // it's important we remove event from list before processing it, else a
1183 // nested event loop, for example from a modal dialog, might process the
1184 // same event again.
1185 m_pendingEvents->Erase(node);
7b0d5c59 1186
19c4d916
VZ
1187 // if there are no more pending events left, we don't need to stay in this
1188 // list
1189 if ( m_pendingEvents->IsEmpty() )
1512f0f7
VZ
1190 {
1191#if wxUSE_THREADS
1192 if (wxPendingEventsLocker)
1193 wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1194#endif
19c4d916 1195 wxPendingEvents->DeleteObject(this);
1512f0f7
VZ
1196#if wxUSE_THREADS
1197 if (wxPendingEventsLocker)
1198 wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1199#endif
1200 }
5fa150e2 1201
8ebec7dc 1202 wxLEAVE_CRIT_SECT( m_pendingEventsLock );
7b0d5c59 1203
19c4d916 1204 ProcessEvent(*event);
cfe17b74 1205
19c4d916
VZ
1206 // careful: this object could have been deleted by the event handler
1207 // executed by the above ProcessEvent() call, so we can't access any fields
1208 // of this object any more
7214297d 1209}
7214297d 1210
c801d85f
KB
1211/*
1212 * Event table stuff
1213 */
1c624631
VZ
1214/* static */ bool
1215wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1216 wxEvtHandler *handler,
1217 wxEvent& event)
1218{
1219 int tableId1 = entry.m_id,
1220 tableId2 = entry.m_lastId;
1221
1222 // match only if the event type is the same and the id is either -1 in
1223 // the event table (meaning "any") or the event id matches the id
1224 // specified in the event table either exactly or by falling into
1225 // range between first and last
1a18887b
WS
1226 if ((tableId1 == wxID_ANY) ||
1227 (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1228 (tableId2 != wxID_ANY &&
1c624631
VZ
1229 (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1230 {
1231 event.Skip(false);
1232 event.m_callbackUserData = entry.m_callbackUserData;
1233
1234#if wxUSE_EXCEPTIONS
1235 if ( wxTheApp )
1236 {
1237 // call the handler via wxApp method which allows the user to catch
1238 // any exceptions which may be thrown by any handler in the program
1239 // in one place
1240 wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1241 }
1242 else
8bd2a804 1243#endif // wxUSE_EXCEPTIONS
1c624631
VZ
1244 {
1245 // no need for an extra virtual function call
1246 (handler->*((wxEventFunction) (entry.m_fn)))(event);
1247 }
1c624631
VZ
1248
1249 if (!event.GetSkipped())
1250 return true;
1251 }
1252
1253 return false;
1254}
c801d85f 1255
4caf847c 1256bool wxEvtHandler::TryParent(wxEvent& event)
c801d85f 1257{
4caf847c 1258 if ( wxTheApp && (this != wxTheApp) )
9154d8cf 1259 {
4caf847c
VZ
1260 // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1261 // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1262 // processed appropriately via SearchEventTable.
1263 if ( event.GetEventType() != wxEVT_IDLE )
1264 {
1265 if ( wxTheApp->ProcessEvent(event) )
1c624631 1266 return true;
4caf847c 1267 }
9154d8cf
VZ
1268 }
1269
1c624631 1270 return false;
4caf847c 1271}
0b746ba8 1272
4caf847c
VZ
1273bool wxEvtHandler::ProcessEvent(wxEvent& event)
1274{
9154d8cf
VZ
1275 // allow the application to hook into event processing
1276 if ( wxTheApp )
1277 {
1278 int rc = wxTheApp->FilterEvent(event);
1279 if ( rc != -1 )
1280 {
1281 wxASSERT_MSG( rc == 1 || rc == 0,
1282 _T("unexpected wxApp::FilterEvent return value") );
1283
1284 return rc != 0;
1285 }
1286 //else: proceed normally
1287 }
1288
8e193f38 1289 // An event handler can be enabled or disabled
0b746ba8 1290 if ( GetEvtHandlerEnabled() )
c801d85f 1291 {
22c2307c
VZ
1292 // if we have a validator, it has higher priority than our own event
1293 // table
4caf847c 1294 if ( TryValidator(event) )
1c624631 1295 return true;
4caf847c 1296
22c2307c
VZ
1297 // Handle per-instance dynamic event tables first
1298 if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1c624631 1299 return true;
0b746ba8 1300
b5a98acd
VZ
1301 // Then static per-class event tables
1302 if ( GetEventHashTable().HandleEvent(event, this) )
1c624631 1303 return true;
c801d85f
KB
1304 }
1305
0b746ba8
VZ
1306 // Try going down the event handler chain
1307 if ( GetNextHandler() )
c801d85f 1308 {
21dffed2
VZ
1309 // notice that we shouldn't let the parent have the event even if the
1310 // next handler does not process it because it will have already passed
1311 // it to the parent in this case
1312 return GetNextHandler()->ProcessEvent(event);
c801d85f 1313 }
c801d85f 1314
22c2307c
VZ
1315 // Finally propagate the event upwards the window chain and/or to the
1316 // application object as necessary
4caf847c 1317 return TryParent(event);
c801d85f
KB
1318}
1319
937013e0
VS
1320bool wxEvtHandler::SafelyProcessEvent(wxEvent& event)
1321{
1322#if wxUSE_EXCEPTIONS
1323 try
1324 {
1325#endif
1326 return ProcessEvent(event);
1327#if wxUSE_EXCEPTIONS
1328 }
1329 catch ( ... )
1330 {
1331 wxEventLoopBase *loop = wxEventLoopBase::GetActive();
1332 try
1333 {
1334 if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() )
1335 {
1336 if ( loop )
1337 loop->Exit();
1338 }
1339 //else: continue running current event loop
1340
1341 return false;
1342 }
1343 catch ( ... )
1344 {
1345 // OnExceptionInMainLoop() threw, possibly rethrowing the same
1346 // exception again: very good, but we still need Exit() to
1347 // be called
1348 if ( loop )
1349 loop->Exit();
1350 throw;
1351 }
1352 }
1353#endif // wxUSE_EXCEPTIONS
1354}
1355
b5a98acd 1356
c801d85f
KB
1357bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1358{
1c624631 1359 const wxEventType eventType = event.GetEventType();
68662769 1360 for ( int i = 0; table.entries[i].m_fn != 0; i++ )
c801d85f 1361 {
68662769 1362 const wxEventTableEntry& entry = table.entries[i];
68662769 1363 if ( eventType == entry.m_eventType )
0b746ba8 1364 {
1c624631
VZ
1365 if ( ProcessEventIfMatches(entry, this, event) )
1366 return true;
0b746ba8 1367 }
c801d85f 1368 }
68662769 1369
1c624631 1370 return false;
c801d85f 1371}
97d7bfb8 1372
debe6624 1373void wxEvtHandler::Connect( int id, int lastId,
77d4384e 1374 int eventType,
0b746ba8 1375 wxObjectEventFunction func,
65b17727
JS
1376 wxObject *userData,
1377 wxEvtHandler* eventSink )
fe71f65c 1378{
0b5eceb6 1379 wxDynamicEventTableEntry *entry =
65b17727 1380 new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
0b746ba8
VZ
1381
1382 if (!m_dynamicEvents)
1383 m_dynamicEvents = new wxList;
1384
92309201
RD
1385 // Insert at the front of the list so most recent additions are found first
1386 m_dynamicEvents->Insert( (wxObject*) entry );
cc6ceca7 1387
4732e2dc 1388#if wxUSE_WEAKREF
cc6ceca7 1389 // Make sure we get to know when a sink is destroyed
886274c6 1390 if ( eventSink && eventSink != this )
2ef989c9 1391 {
cc6ceca7
VZ
1392 wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1393 if ( evtConnRef )
1394 evtConnRef->IncRef( );
2ef989c9 1395 else
cc6ceca7 1396 evtConnRef = new wxEventConnectionRef(this, eventSink);
2ef989c9 1397 }
4732e2dc 1398#endif // wxUSE_WEAKREF
fe71f65c 1399}
97d7bfb8
RR
1400
1401bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1402 wxObjectEventFunction func,
65b17727
JS
1403 wxObject *userData,
1404 wxEvtHandler* eventSink )
97d7bfb8
RR
1405{
1406 if (!m_dynamicEvents)
1c624631 1407 return false;
cfe17b74 1408
4732e2dc 1409#if wxUSE_WEAKREF
2ef989c9 1410 // Remove connection from tracker node (wxEventConnectionRef)
886274c6 1411 if ( eventSink && eventSink != this )
2ef989c9 1412 {
cc6ceca7
VZ
1413 wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink);
1414 if ( evtConnRef )
1415 evtConnRef->DecRef();
2ef989c9 1416 }
4732e2dc 1417#endif // wxUSE_WEAKREF
2ef989c9 1418
df5168c4 1419 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
97d7bfb8
RR
1420 while (node)
1421 {
ad684023 1422 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
2e4df4bf 1423
97d7bfb8 1424 if ((entry->m_id == id) &&
1a18887b 1425 ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
97d7bfb8
RR
1426 ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1427 ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
65b17727 1428 ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
97d7bfb8
RR
1429 ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1430 {
2e4df4bf
VZ
1431 if (entry->m_callbackUserData)
1432 delete entry->m_callbackUserData;
df5168c4 1433 m_dynamicEvents->Erase( node );
97d7bfb8 1434 delete entry;
1c624631 1435 return true;
97d7bfb8 1436 }
b1d4dd7a 1437 node = node->GetNext();
97d7bfb8 1438 }
1c624631 1439 return false;
97d7bfb8 1440}
fe71f65c
RR
1441
1442bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1443{
1c624631 1444 wxCHECK_MSG( m_dynamicEvents, false,
223d09f6 1445 wxT("caller should check that we have dynamic events") );
0b746ba8 1446
df5168c4 1447 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
0b746ba8 1448 while (node)
fe71f65c 1449 {
1c624631 1450 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
0b746ba8 1451
7fce89b9
VZ
1452 // get next node before (maybe) calling the event handler as it could
1453 // call Disconnect() invalidating the current node
1454 node = node->GetNext();
1455
ab1931f9 1456 if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
0b746ba8 1457 {
ad684023
RR
1458 wxEvtHandler *handler = entry->m_eventSink ? entry->m_eventSink
1459 : this;
1c624631 1460 if ( ProcessEventIfMatches(*entry, handler, event) )
1c624631 1461 return true;
0b746ba8 1462 }
7b678698 1463 }
1c624631
VZ
1464
1465 return false;
4115960d 1466}
fe71f65c 1467
b88c44e7
RD
1468void wxEvtHandler::DoSetClientObject( wxClientData *data )
1469{
1470 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1471 wxT("can't have both object and void client data") );
1472
1473 if ( m_clientObject )
1474 delete m_clientObject;
1475
1476 m_clientObject = data;
1477 m_clientDataType = wxClientData_Object;
1478}
1479
1480wxClientData *wxEvtHandler::DoGetClientObject() const
1481{
1482 // it's not an error to call GetClientObject() on a window which doesn't
1483 // have client data at all - NULL will be returned
1484 wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1485 wxT("this window doesn't have object client data") );
1486
1487 return m_clientObject;
1488}
1489
1490void wxEvtHandler::DoSetClientData( void *data )
1491{
1492 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1493 wxT("can't have both object and void client data") );
1494
1495 m_clientData = data;
1496 m_clientDataType = wxClientData_Void;
1497}
1498
1499void *wxEvtHandler::DoGetClientData() const
1500{
1501 // it's not an error to call GetClientData() on a window which doesn't have
1502 // client data at all - NULL will be returned
1503 wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1504 wxT("this window doesn't have void client data") );
1505
1506 return m_clientData;
1507}
1508
4732e2dc 1509#if wxUSE_WEAKREF
cc6ceca7
VZ
1510// A helper to find an wxEventConnectionRef object
1511wxEventConnectionRef *
1512wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink)
2ef989c9 1513{
cc6ceca7 1514 for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt )
2ef989c9 1515 {
cc6ceca7
VZ
1516 // we only want wxEventConnectionRef nodes here
1517 wxEventConnectionRef *evtConnRef = node->ToEventConnection();
1518 if ( evtConnRef && evtConnRef->m_src == this )
2ef989c9 1519 {
cc6ceca7
VZ
1520 wxASSERT( evtConnRef->m_sink==eventSink );
1521 return evtConnRef;
2ef989c9
RR
1522 }
1523 }
cc6ceca7 1524
2ef989c9
RR
1525 return NULL;
1526}
1527
1528void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink )
1529{
1530 wxASSERT(m_dynamicEvents);
cc6ceca7 1531
2ef989c9
RR
1532 // remove all connections with this sink
1533 wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt;
1534 while (node)
1535 {
1536 wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1537 node_nxt = node->GetNext();
cc6ceca7
VZ
1538
1539 if ( entry->m_eventSink==sink )
2ef989c9
RR
1540 {
1541 if (entry->m_callbackUserData)
1542 delete entry->m_callbackUserData;
1543 m_dynamicEvents->Erase( node );
1544 delete entry;
1545 }
1546 node = node_nxt;
1547 }
1548}
4732e2dc 1549#endif // wxUSE_WEAKREF
2ef989c9 1550
4caf847c
VZ
1551#endif // wxUSE_BASE
1552
e90c1d2a
VZ
1553#if wxUSE_GUI
1554
e702ff0f
JS
1555// Find a window with the focus, that is also a descendant of the given window.
1556// This is used to determine the window to initially send commands to.
1557wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1558{
1559 // Process events starting with the window with the focus, if any.
1560 wxWindow* focusWin = wxWindow::FindFocus();
1561 wxWindow* win = focusWin;
1562
1563 // Check if this is a descendant of this frame.
1564 // If not, win will be set to NULL.
1565 while (win)
1566 {
1567 if (win == ancestor)
1568 break;
1569 else
1570 win = win->GetParent();
1571 }
1572 if (win == (wxWindow*) NULL)
1573 focusWin = (wxWindow*) NULL;
1574
1575 return focusWin;
1576}
1577
c4fa5aa7
VZ
1578// ----------------------------------------------------------------------------
1579// wxEventBlocker
1580// ----------------------------------------------------------------------------
1581
1582wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type)
1583{
1584 wxCHECK_RET(win, wxT("Null window given to wxEventBlocker"));
1585
1586 m_window = win;
1587
1588 Block(type);
1589 m_window->PushEventHandler(this);
1590}
1591
1592wxEventBlocker::~wxEventBlocker()
1593{
1594 wxEvtHandler *popped = m_window->PopEventHandler(false);
aa767a45 1595 wxCHECK_RET(popped == this,
c4fa5aa7
VZ
1596 wxT("Don't push other event handlers into a window managed by wxEventBlocker!"));
1597}
1598
1599bool wxEventBlocker::ProcessEvent(wxEvent& event)
1600{
1601 // should this event be blocked?
1602 for ( size_t i = 0; i < m_eventsToBlock.size(); i++ )
1603 {
1604 wxEventType t = (wxEventType)m_eventsToBlock[i];
1605 if ( t == wxEVT_ANY || t == event.GetEventType() )
1606 return true; // yes, it should: mark this event as processed
1607 }
1608
1609 return false;
1610}
1611
e90c1d2a 1612#endif // wxUSE_GUI