| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/common/event.cpp |
| 3 | // Purpose: Event classes |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 01/02/97 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #ifndef WX_PRECOMP |
| 28 | #include "wx/app.h" |
| 29 | #include "wx/list.h" |
| 30 | |
| 31 | #if wxUSE_GUI |
| 32 | #include "wx/control.h" |
| 33 | #include "wx/utils.h" |
| 34 | #include "wx/dc.h" |
| 35 | #include "wx/textctrl.h" |
| 36 | #endif // wxUSE_GUI |
| 37 | #endif |
| 38 | |
| 39 | #include "wx/event.h" |
| 40 | #include "wx/module.h" |
| 41 | |
| 42 | #if wxUSE_GUI |
| 43 | #include "wx/validate.h" |
| 44 | #if wxUSE_STOPWATCH |
| 45 | #include "wx/stopwatch.h" |
| 46 | #endif |
| 47 | #endif // wxUSE_GUI |
| 48 | |
| 49 | // ---------------------------------------------------------------------------- |
| 50 | // wxWin macros |
| 51 | // ---------------------------------------------------------------------------- |
| 52 | |
| 53 | #if wxUSE_BASE |
| 54 | IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) |
| 55 | IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) |
| 56 | #endif // wxUSE_BASE |
| 57 | |
| 58 | #if wxUSE_GUI |
| 59 | IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) |
| 60 | IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent) |
| 61 | IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent) |
| 62 | IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent) |
| 63 | IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent) |
| 64 | IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent) |
| 65 | IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent) |
| 66 | IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent) |
| 67 | IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent) |
| 68 | IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent) |
| 69 | IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent) |
| 70 | IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent) |
| 71 | IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent) |
| 72 | IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent) |
| 73 | IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent) |
| 74 | IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent) |
| 75 | IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent) |
| 76 | IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent) |
| 77 | IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent) |
| 78 | IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent) |
| 79 | IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent) |
| 80 | IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent) |
| 81 | IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent) |
| 82 | IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent) |
| 83 | IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent) |
| 84 | IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent) |
| 85 | IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent) |
| 86 | IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent) |
| 87 | IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent) |
| 88 | IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent) |
| 89 | IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent) |
| 90 | IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent) |
| 91 | IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent) |
| 92 | IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent) |
| 93 | IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent) |
| 94 | #endif // wxUSE_GUI |
| 95 | |
| 96 | #if wxUSE_BASE |
| 97 | |
| 98 | const wxEventTable *wxEvtHandler::GetEventTable() const |
| 99 | { return &wxEvtHandler::sm_eventTable; } |
| 100 | |
| 101 | const wxEventTable wxEvtHandler::sm_eventTable = |
| 102 | { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] }; |
| 103 | |
| 104 | wxEventHashTable &wxEvtHandler::GetEventHashTable() const |
| 105 | { return wxEvtHandler::sm_eventHashTable; } |
| 106 | |
| 107 | wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable); |
| 108 | |
| 109 | const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] = |
| 110 | { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) }; |
| 111 | |
| 112 | |
| 113 | #ifdef __WXDEBUG__ |
| 114 | // Clear up event hash table contents or we can get problems |
| 115 | // when C++ is cleaning up the static object |
| 116 | class wxEventTableEntryModule: public wxModule |
| 117 | { |
| 118 | DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule) |
| 119 | public: |
| 120 | wxEventTableEntryModule() {} |
| 121 | bool OnInit() { return true; } |
| 122 | void OnExit() |
| 123 | { |
| 124 | wxEventHashTable::ClearAll(); |
| 125 | } |
| 126 | }; |
| 127 | IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule) |
| 128 | #endif |
| 129 | |
| 130 | // ---------------------------------------------------------------------------- |
| 131 | // global variables |
| 132 | // ---------------------------------------------------------------------------- |
| 133 | |
| 134 | // To put pending event handlers |
| 135 | wxList *wxPendingEvents = (wxList *)NULL; |
| 136 | |
| 137 | #if wxUSE_THREADS |
| 138 | // protects wxPendingEvents list |
| 139 | wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL; |
| 140 | #endif |
| 141 | |
| 142 | #if !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 143 | |
| 144 | // common event types are defined here, other event types are defined by the |
| 145 | // components which use them |
| 146 | |
| 147 | const wxEventType wxEVT_FIRST = 10000; |
| 148 | const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000; |
| 149 | |
| 150 | DEFINE_EVENT_TYPE(wxEVT_NULL) |
| 151 | DEFINE_EVENT_TYPE(wxEVT_IDLE) |
| 152 | DEFINE_EVENT_TYPE(wxEVT_SOCKET) |
| 153 | |
| 154 | #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 155 | |
| 156 | #endif // wxUSE_BASE |
| 157 | |
| 158 | #if wxUSE_GUI |
| 159 | |
| 160 | #if !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 161 | |
| 162 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED) |
| 163 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED) |
| 164 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED) |
| 165 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED) |
| 166 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED) |
| 167 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED) |
| 168 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED) |
| 169 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED) |
| 170 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED) |
| 171 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED) |
| 172 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED) |
| 173 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED) |
| 174 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED) |
| 175 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED) |
| 176 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER) |
| 177 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED) |
| 178 | |
| 179 | // Sockets and timers send events, too |
| 180 | DEFINE_EVENT_TYPE(wxEVT_TIMER) |
| 181 | |
| 182 | // Mouse event types |
| 183 | DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN) |
| 184 | DEFINE_EVENT_TYPE(wxEVT_LEFT_UP) |
| 185 | DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN) |
| 186 | DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP) |
| 187 | DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN) |
| 188 | DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP) |
| 189 | DEFINE_EVENT_TYPE(wxEVT_MOTION) |
| 190 | DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW) |
| 191 | DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW) |
| 192 | DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK) |
| 193 | DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK) |
| 194 | DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK) |
| 195 | DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS) |
| 196 | DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS) |
| 197 | DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS) |
| 198 | DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL) |
| 199 | |
| 200 | // Non-client mouse events |
| 201 | DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN) |
| 202 | DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP) |
| 203 | DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN) |
| 204 | DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP) |
| 205 | DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN) |
| 206 | DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP) |
| 207 | DEFINE_EVENT_TYPE(wxEVT_NC_MOTION) |
| 208 | DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW) |
| 209 | DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW) |
| 210 | DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK) |
| 211 | DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK) |
| 212 | DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK) |
| 213 | |
| 214 | // Character input event type |
| 215 | DEFINE_EVENT_TYPE(wxEVT_CHAR) |
| 216 | DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK) |
| 217 | DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY) |
| 218 | DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN) |
| 219 | DEFINE_EVENT_TYPE(wxEVT_KEY_UP) |
| 220 | #if wxUSE_HOTKEY |
| 221 | DEFINE_EVENT_TYPE(wxEVT_HOTKEY) |
| 222 | #endif |
| 223 | |
| 224 | // Set cursor event |
| 225 | DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR) |
| 226 | |
| 227 | // wxScrollbar and wxSlider event identifiers |
| 228 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP) |
| 229 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM) |
| 230 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP) |
| 231 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN) |
| 232 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP) |
| 233 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN) |
| 234 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK) |
| 235 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE) |
| 236 | DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED) |
| 237 | |
| 238 | // Scroll events from wxWindow |
| 239 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP) |
| 240 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM) |
| 241 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP) |
| 242 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN) |
| 243 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP) |
| 244 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN) |
| 245 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK) |
| 246 | DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE) |
| 247 | |
| 248 | // System events |
| 249 | DEFINE_EVENT_TYPE(wxEVT_SIZE) |
| 250 | DEFINE_EVENT_TYPE(wxEVT_SIZING) |
| 251 | DEFINE_EVENT_TYPE(wxEVT_MOVE) |
| 252 | DEFINE_EVENT_TYPE(wxEVT_MOVING) |
| 253 | DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW) |
| 254 | DEFINE_EVENT_TYPE(wxEVT_END_SESSION) |
| 255 | DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION) |
| 256 | DEFINE_EVENT_TYPE(wxEVT_HIBERNATE) |
| 257 | DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP) |
| 258 | DEFINE_EVENT_TYPE(wxEVT_POWER) |
| 259 | DEFINE_EVENT_TYPE(wxEVT_ACTIVATE) |
| 260 | DEFINE_EVENT_TYPE(wxEVT_CREATE) |
| 261 | DEFINE_EVENT_TYPE(wxEVT_DESTROY) |
| 262 | DEFINE_EVENT_TYPE(wxEVT_SHOW) |
| 263 | DEFINE_EVENT_TYPE(wxEVT_ICONIZE) |
| 264 | DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE) |
| 265 | DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED) |
| 266 | DEFINE_EVENT_TYPE(wxEVT_PAINT) |
| 267 | DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND) |
| 268 | DEFINE_EVENT_TYPE(wxEVT_NC_PAINT) |
| 269 | DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON) |
| 270 | DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN) |
| 271 | DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE) |
| 272 | DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT) |
| 273 | DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU) |
| 274 | DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED) |
| 275 | DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED) |
| 276 | DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED) |
| 277 | DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE) |
| 278 | DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED) |
| 279 | DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN) |
| 280 | DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP) |
| 281 | DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE) |
| 282 | DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE) |
| 283 | DEFINE_EVENT_TYPE(wxEVT_DROP_FILES) |
| 284 | DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM) |
| 285 | DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM) |
| 286 | DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM) |
| 287 | DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG) |
| 288 | DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI) |
| 289 | |
| 290 | // Generic command events |
| 291 | // Note: a click is a higher-level event than button down/up |
| 292 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK) |
| 293 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK) |
| 294 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK) |
| 295 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK) |
| 296 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS) |
| 297 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS) |
| 298 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER) |
| 299 | |
| 300 | // Help events |
| 301 | DEFINE_EVENT_TYPE(wxEVT_HELP) |
| 302 | DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP) |
| 303 | |
| 304 | #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 305 | |
| 306 | #endif // wxUSE_GUI |
| 307 | |
| 308 | #if wxUSE_BASE |
| 309 | |
| 310 | // ============================================================================ |
| 311 | // implementation |
| 312 | // ============================================================================ |
| 313 | |
| 314 | // ---------------------------------------------------------------------------- |
| 315 | // event initialization |
| 316 | // ---------------------------------------------------------------------------- |
| 317 | |
| 318 | int wxNewEventType() |
| 319 | { |
| 320 | // MT-FIXME |
| 321 | static int s_lastUsedEventType = wxEVT_FIRST; |
| 322 | |
| 323 | return s_lastUsedEventType++; |
| 324 | } |
| 325 | |
| 326 | // ---------------------------------------------------------------------------- |
| 327 | // wxEvent |
| 328 | // ---------------------------------------------------------------------------- |
| 329 | |
| 330 | /* |
| 331 | * General wxWidgets events, covering |
| 332 | * all interesting things that might happen (button clicking, resizing, |
| 333 | * setting text in widgets, etc.). |
| 334 | * |
| 335 | * For each completely new event type, derive a new event class. |
| 336 | * |
| 337 | */ |
| 338 | |
| 339 | wxEvent::wxEvent(int theId, wxEventType commandType ) |
| 340 | { |
| 341 | m_eventType = commandType; |
| 342 | m_eventObject = (wxObject *) NULL; |
| 343 | m_timeStamp = 0; |
| 344 | m_id = theId; |
| 345 | m_skipped = false; |
| 346 | m_callbackUserData = (wxObject *) NULL; |
| 347 | m_isCommandEvent = false; |
| 348 | m_propagationLevel = wxEVENT_PROPAGATE_NONE; |
| 349 | } |
| 350 | |
| 351 | wxEvent::wxEvent(const wxEvent &src) |
| 352 | : wxObject() |
| 353 | , m_eventObject(src.m_eventObject) |
| 354 | , m_eventType(src.m_eventType) |
| 355 | , m_timeStamp(src.m_timeStamp) |
| 356 | , m_id(src.m_id) |
| 357 | , m_callbackUserData(src.m_callbackUserData) |
| 358 | , m_propagationLevel(src.m_propagationLevel) |
| 359 | , m_skipped(src.m_skipped) |
| 360 | , m_isCommandEvent(src.m_isCommandEvent) |
| 361 | { |
| 362 | } |
| 363 | |
| 364 | #endif // wxUSE_BASE |
| 365 | |
| 366 | #if wxUSE_GUI |
| 367 | |
| 368 | /* |
| 369 | * Command events |
| 370 | * |
| 371 | */ |
| 372 | |
| 373 | #ifdef __VISUALC__ |
| 374 | // 'this' : used in base member initializer list (for m_commandString) |
| 375 | #pragma warning(disable:4355) |
| 376 | #endif |
| 377 | |
| 378 | wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId) |
| 379 | : wxEvent(theId, commandType) |
| 380 | #if WXWIN_COMPATIBILITY_2_4 |
| 381 | , m_commandString(this) |
| 382 | #endif |
| 383 | { |
| 384 | m_clientData = (char *) NULL; |
| 385 | m_clientObject = (wxClientData *) NULL; |
| 386 | m_extraLong = 0; |
| 387 | m_commandInt = 0; |
| 388 | m_isCommandEvent = true; |
| 389 | |
| 390 | // the command events are propagated upwards by default |
| 391 | m_propagationLevel = wxEVENT_PROPAGATE_MAX; |
| 392 | } |
| 393 | |
| 394 | #ifdef __VISUALC__ |
| 395 | #pragma warning(default:4355) |
| 396 | #endif |
| 397 | |
| 398 | wxString wxCommandEvent::GetString() const |
| 399 | { |
| 400 | if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject) |
| 401 | return m_cmdString; |
| 402 | else |
| 403 | { |
| 404 | #if wxUSE_TEXTCTRL |
| 405 | wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl); |
| 406 | if(txt) |
| 407 | return txt->GetValue(); |
| 408 | else |
| 409 | #endif // wxUSE_TEXTCTRL |
| 410 | return m_cmdString; |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | /* |
| 415 | * UI update events |
| 416 | */ |
| 417 | |
| 418 | #if wxUSE_LONGLONG |
| 419 | wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0; |
| 420 | #endif |
| 421 | |
| 422 | long wxUpdateUIEvent::sm_updateInterval = 0; |
| 423 | |
| 424 | wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL; |
| 425 | |
| 426 | // Can we update? |
| 427 | bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win) |
| 428 | { |
| 429 | // Don't update if we've switched global updating off |
| 430 | // and this window doesn't support updates. |
| 431 | if (win && |
| 432 | (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED && |
| 433 | ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0))) |
| 434 | return false; |
| 435 | |
| 436 | if (sm_updateInterval == -1) |
| 437 | return false; |
| 438 | |
| 439 | if (sm_updateInterval == 0) |
| 440 | return true; |
| 441 | |
| 442 | #if wxUSE_STOPWATCH && wxUSE_LONGLONG |
| 443 | wxLongLong now = wxGetLocalTimeMillis(); |
| 444 | if (now > (sm_lastUpdate + sm_updateInterval)) |
| 445 | { |
| 446 | return true; |
| 447 | } |
| 448 | |
| 449 | return false; |
| 450 | #else |
| 451 | // If we don't have wxStopWatch or wxLongLong, we |
| 452 | // should err on the safe side and update now anyway. |
| 453 | return true; |
| 454 | #endif |
| 455 | } |
| 456 | |
| 457 | // Reset the update time to provide a delay until the next |
| 458 | // time we should update |
| 459 | void wxUpdateUIEvent::ResetUpdateTime() |
| 460 | { |
| 461 | #if wxUSE_STOPWATCH && wxUSE_LONGLONG |
| 462 | if (sm_updateInterval > 0) |
| 463 | { |
| 464 | wxLongLong now = wxGetLocalTimeMillis(); |
| 465 | if (now > (sm_lastUpdate + sm_updateInterval)) |
| 466 | { |
| 467 | sm_lastUpdate = now; |
| 468 | } |
| 469 | } |
| 470 | #endif |
| 471 | } |
| 472 | |
| 473 | /* |
| 474 | * Idle events |
| 475 | */ |
| 476 | |
| 477 | wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL; |
| 478 | |
| 479 | // Can we send an idle event? |
| 480 | bool wxIdleEvent::CanSend(wxWindow* win) |
| 481 | { |
| 482 | // Don't update if we've switched global updating off |
| 483 | // and this window doesn't support updates. |
| 484 | if (win && |
| 485 | (GetMode() == wxIDLE_PROCESS_SPECIFIED && |
| 486 | ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0))) |
| 487 | return false; |
| 488 | |
| 489 | return true; |
| 490 | } |
| 491 | |
| 492 | /* |
| 493 | * Scroll events |
| 494 | */ |
| 495 | |
| 496 | wxScrollEvent::wxScrollEvent(wxEventType commandType, |
| 497 | int id, |
| 498 | int pos, |
| 499 | int orient) |
| 500 | : wxCommandEvent(commandType, id) |
| 501 | { |
| 502 | m_extraLong = orient; |
| 503 | m_commandInt = pos; |
| 504 | } |
| 505 | |
| 506 | /* |
| 507 | * ScrollWin events |
| 508 | */ |
| 509 | |
| 510 | wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType, |
| 511 | int pos, |
| 512 | int orient) |
| 513 | { |
| 514 | m_eventType = commandType; |
| 515 | m_extraLong = orient; |
| 516 | m_commandInt = pos; |
| 517 | } |
| 518 | |
| 519 | /* |
| 520 | * Mouse events |
| 521 | * |
| 522 | */ |
| 523 | |
| 524 | wxMouseEvent::wxMouseEvent(wxEventType commandType) |
| 525 | { |
| 526 | m_eventType = commandType; |
| 527 | m_metaDown = false; |
| 528 | m_altDown = false; |
| 529 | m_controlDown = false; |
| 530 | m_shiftDown = false; |
| 531 | m_leftDown = false; |
| 532 | m_rightDown = false; |
| 533 | m_middleDown = false; |
| 534 | m_x = 0; |
| 535 | m_y = 0; |
| 536 | m_wheelRotation = 0; |
| 537 | m_wheelDelta = 0; |
| 538 | m_linesPerAction = 0; |
| 539 | } |
| 540 | |
| 541 | void wxMouseEvent::Assign(const wxMouseEvent& event) |
| 542 | { |
| 543 | m_eventType = event.m_eventType; |
| 544 | |
| 545 | m_x = event.m_x; |
| 546 | m_y = event.m_y; |
| 547 | |
| 548 | m_leftDown = event.m_leftDown; |
| 549 | m_middleDown = event.m_middleDown; |
| 550 | m_rightDown = event.m_rightDown; |
| 551 | |
| 552 | m_controlDown = event.m_controlDown; |
| 553 | m_shiftDown = event.m_shiftDown; |
| 554 | m_altDown = event.m_altDown; |
| 555 | m_metaDown = event.m_metaDown; |
| 556 | |
| 557 | m_wheelRotation = event.m_wheelRotation; |
| 558 | m_wheelDelta = event.m_wheelDelta; |
| 559 | m_linesPerAction = event.m_linesPerAction; |
| 560 | } |
| 561 | |
| 562 | // return true if was a button dclick event |
| 563 | bool wxMouseEvent::ButtonDClick(int but) const |
| 564 | { |
| 565 | switch (but) |
| 566 | { |
| 567 | default: |
| 568 | wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick")); |
| 569 | // fall through |
| 570 | |
| 571 | case wxMOUSE_BTN_ANY: |
| 572 | return (LeftDClick() || MiddleDClick() || RightDClick()); |
| 573 | |
| 574 | case wxMOUSE_BTN_LEFT: |
| 575 | return LeftDClick(); |
| 576 | |
| 577 | case wxMOUSE_BTN_MIDDLE: |
| 578 | return MiddleDClick(); |
| 579 | |
| 580 | case wxMOUSE_BTN_RIGHT: |
| 581 | return RightDClick(); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | // return true if was a button down event |
| 586 | bool wxMouseEvent::ButtonDown(int but) const |
| 587 | { |
| 588 | switch (but) |
| 589 | { |
| 590 | default: |
| 591 | wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown")); |
| 592 | // fall through |
| 593 | |
| 594 | case wxMOUSE_BTN_ANY: |
| 595 | return (LeftDown() || MiddleDown() || RightDown()); |
| 596 | |
| 597 | case wxMOUSE_BTN_LEFT: |
| 598 | return LeftDown(); |
| 599 | |
| 600 | case wxMOUSE_BTN_MIDDLE: |
| 601 | return MiddleDown(); |
| 602 | |
| 603 | case wxMOUSE_BTN_RIGHT: |
| 604 | return RightDown(); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | // return true if was a button up event |
| 609 | bool wxMouseEvent::ButtonUp(int but) const |
| 610 | { |
| 611 | switch (but) |
| 612 | { |
| 613 | default: |
| 614 | wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp")); |
| 615 | // fall through |
| 616 | |
| 617 | case wxMOUSE_BTN_ANY: |
| 618 | return (LeftUp() || MiddleUp() || RightUp()); |
| 619 | |
| 620 | case wxMOUSE_BTN_LEFT: |
| 621 | return LeftUp(); |
| 622 | |
| 623 | case wxMOUSE_BTN_MIDDLE: |
| 624 | return MiddleUp(); |
| 625 | |
| 626 | case wxMOUSE_BTN_RIGHT: |
| 627 | return RightUp(); |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | // return true if the given button is currently changing state |
| 632 | bool wxMouseEvent::Button(int but) const |
| 633 | { |
| 634 | switch (but) |
| 635 | { |
| 636 | default: |
| 637 | wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button")); |
| 638 | // fall through |
| 639 | |
| 640 | case wxMOUSE_BTN_ANY: |
| 641 | return ButtonUp(wxMOUSE_BTN_ANY) || |
| 642 | ButtonDown(wxMOUSE_BTN_ANY) || |
| 643 | ButtonDClick(wxMOUSE_BTN_ANY); |
| 644 | |
| 645 | case wxMOUSE_BTN_LEFT: |
| 646 | return LeftDown() || LeftUp() || LeftDClick(); |
| 647 | |
| 648 | case wxMOUSE_BTN_MIDDLE: |
| 649 | return MiddleDown() || MiddleUp() || MiddleDClick(); |
| 650 | |
| 651 | case wxMOUSE_BTN_RIGHT: |
| 652 | return RightDown() || RightUp() || RightDClick(); |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | bool wxMouseEvent::ButtonIsDown(int but) const |
| 657 | { |
| 658 | switch (but) |
| 659 | { |
| 660 | default: |
| 661 | wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown")); |
| 662 | // fall through |
| 663 | |
| 664 | case wxMOUSE_BTN_ANY: |
| 665 | return LeftIsDown() || MiddleIsDown() || RightIsDown(); |
| 666 | |
| 667 | case wxMOUSE_BTN_LEFT: |
| 668 | return LeftIsDown(); |
| 669 | |
| 670 | case wxMOUSE_BTN_MIDDLE: |
| 671 | return MiddleIsDown(); |
| 672 | |
| 673 | case wxMOUSE_BTN_RIGHT: |
| 674 | return RightIsDown(); |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | int wxMouseEvent::GetButton() const |
| 679 | { |
| 680 | for ( int i = 1; i <= 3; i++ ) |
| 681 | { |
| 682 | if ( Button(i) ) |
| 683 | { |
| 684 | return i; |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | return wxMOUSE_BTN_NONE; |
| 689 | } |
| 690 | |
| 691 | // Find the logical position of the event given the DC |
| 692 | wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const |
| 693 | { |
| 694 | wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y)); |
| 695 | return pt; |
| 696 | } |
| 697 | |
| 698 | |
| 699 | /* |
| 700 | * Keyboard event |
| 701 | * |
| 702 | */ |
| 703 | |
| 704 | wxKeyEvent::wxKeyEvent(wxEventType type) |
| 705 | { |
| 706 | m_eventType = type; |
| 707 | m_shiftDown = false; |
| 708 | m_controlDown = false; |
| 709 | m_metaDown = false; |
| 710 | m_altDown = false; |
| 711 | m_keyCode = 0; |
| 712 | m_scanCode = 0; |
| 713 | #if wxUSE_UNICODE |
| 714 | m_uniChar = 0; |
| 715 | #endif |
| 716 | } |
| 717 | |
| 718 | wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) |
| 719 | : wxEvent(evt) |
| 720 | { |
| 721 | m_x = evt.m_x; |
| 722 | m_y = evt.m_y; |
| 723 | |
| 724 | m_keyCode = evt.m_keyCode; |
| 725 | |
| 726 | m_controlDown = evt.m_controlDown; |
| 727 | m_shiftDown = evt.m_shiftDown; |
| 728 | m_altDown = evt.m_altDown; |
| 729 | m_metaDown = evt.m_metaDown; |
| 730 | m_scanCode = evt.m_scanCode; |
| 731 | m_rawCode = evt.m_rawCode; |
| 732 | m_rawFlags = evt.m_rawFlags; |
| 733 | |
| 734 | #if wxUSE_UNICODE |
| 735 | m_uniChar = evt.m_uniChar; |
| 736 | #endif |
| 737 | } |
| 738 | |
| 739 | long wxKeyEvent::KeyCode() const |
| 740 | { |
| 741 | return m_keyCode; |
| 742 | } |
| 743 | |
| 744 | wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win) |
| 745 | { |
| 746 | SetEventType(wxEVT_CREATE); |
| 747 | SetEventObject(win); |
| 748 | } |
| 749 | |
| 750 | wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win) |
| 751 | { |
| 752 | SetEventType(wxEVT_DESTROY); |
| 753 | SetEventObject(win); |
| 754 | } |
| 755 | |
| 756 | wxChildFocusEvent::wxChildFocusEvent(wxWindow *win) |
| 757 | : wxCommandEvent(wxEVT_CHILD_FOCUS) |
| 758 | { |
| 759 | SetEventObject(win); |
| 760 | } |
| 761 | |
| 762 | #endif // wxUSE_GUI |
| 763 | |
| 764 | |
| 765 | #if wxUSE_BASE |
| 766 | |
| 767 | // ---------------------------------------------------------------------------- |
| 768 | // wxEventHashTable |
| 769 | // ---------------------------------------------------------------------------- |
| 770 | |
| 771 | static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small... |
| 772 | |
| 773 | wxEventHashTable* wxEventHashTable::sm_first = NULL; |
| 774 | |
| 775 | wxEventHashTable::wxEventHashTable(const wxEventTable &table) |
| 776 | : m_table(table), |
| 777 | m_rebuildHash(true) |
| 778 | { |
| 779 | AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE); |
| 780 | |
| 781 | m_next = sm_first; |
| 782 | if (m_next) |
| 783 | m_next->m_previous = this; |
| 784 | sm_first = this; |
| 785 | } |
| 786 | |
| 787 | wxEventHashTable::~wxEventHashTable() |
| 788 | { |
| 789 | if (m_next) |
| 790 | m_next->m_previous = m_previous; |
| 791 | if (m_previous) |
| 792 | m_previous->m_next = m_next; |
| 793 | if (sm_first == this) |
| 794 | sm_first = m_next; |
| 795 | |
| 796 | Clear(); |
| 797 | } |
| 798 | |
| 799 | void wxEventHashTable::Clear() |
| 800 | { |
| 801 | size_t i; |
| 802 | for(i = 0; i < m_size; i++) |
| 803 | { |
| 804 | EventTypeTablePointer eTTnode = m_eventTypeTable[i]; |
| 805 | if (eTTnode) |
| 806 | { |
| 807 | delete eTTnode; |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | // Necessary in order to not invoke the |
| 812 | // overloaded delete operator when statics are cleaned up |
| 813 | if (m_eventTypeTable) |
| 814 | delete[] m_eventTypeTable; |
| 815 | |
| 816 | m_eventTypeTable = NULL; |
| 817 | m_size = 0; |
| 818 | } |
| 819 | |
| 820 | // Clear all tables |
| 821 | void wxEventHashTable::ClearAll() |
| 822 | { |
| 823 | wxEventHashTable* table = sm_first; |
| 824 | while (table) |
| 825 | { |
| 826 | table->Clear(); |
| 827 | table = table->m_next; |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self) |
| 832 | { |
| 833 | if (m_rebuildHash) |
| 834 | { |
| 835 | InitHashTable(); |
| 836 | m_rebuildHash = false; |
| 837 | } |
| 838 | |
| 839 | if (!m_eventTypeTable) |
| 840 | return false; |
| 841 | |
| 842 | // Find all entries for the given event type. |
| 843 | wxEventType eventType = event.GetEventType(); |
| 844 | const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size]; |
| 845 | if (eTTnode && eTTnode->eventType == eventType) |
| 846 | { |
| 847 | // Now start the search for an event handler |
| 848 | // that can handle an event with the given ID. |
| 849 | const wxEventTableEntryPointerArray& |
| 850 | eventEntryTable = eTTnode->eventEntryTable; |
| 851 | |
| 852 | const size_t count = eventEntryTable.GetCount(); |
| 853 | for (size_t n = 0; n < count; n++) |
| 854 | { |
| 855 | if ( wxEvtHandler:: |
| 856 | ProcessEventIfMatches(*eventEntryTable[n], self, event) ) |
| 857 | { |
| 858 | return true; |
| 859 | } |
| 860 | } |
| 861 | } |
| 862 | |
| 863 | return false; |
| 864 | } |
| 865 | |
| 866 | void wxEventHashTable::InitHashTable() |
| 867 | { |
| 868 | // Loop over the event tables and all its base tables. |
| 869 | const wxEventTable *table = &m_table; |
| 870 | while (table) |
| 871 | { |
| 872 | // Retrieve all valid event handler entries |
| 873 | const wxEventTableEntry *entry = table->entries; |
| 874 | while (entry->m_fn != 0) |
| 875 | { |
| 876 | // Add the event entry in the Hash. |
| 877 | AddEntry(*entry); |
| 878 | |
| 879 | entry++; |
| 880 | } |
| 881 | |
| 882 | table = table->baseTable; |
| 883 | } |
| 884 | |
| 885 | // Lets free some memory. |
| 886 | size_t i; |
| 887 | for(i = 0; i < m_size; i++) |
| 888 | { |
| 889 | EventTypeTablePointer eTTnode = m_eventTypeTable[i]; |
| 890 | if (eTTnode) |
| 891 | { |
| 892 | eTTnode->eventEntryTable.Shrink(); |
| 893 | } |
| 894 | } |
| 895 | } |
| 896 | |
| 897 | void wxEventHashTable::AddEntry(const wxEventTableEntry &entry) |
| 898 | { |
| 899 | // This might happen 'accidentally' as the app is exiting |
| 900 | if (!m_eventTypeTable) |
| 901 | return; |
| 902 | |
| 903 | EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size]; |
| 904 | EventTypeTablePointer eTTnode = *peTTnode; |
| 905 | |
| 906 | if (eTTnode) |
| 907 | { |
| 908 | if (eTTnode->eventType != entry.m_eventType) |
| 909 | { |
| 910 | // Resize the table! |
| 911 | GrowEventTypeTable(); |
| 912 | // Try again to add it. |
| 913 | AddEntry(entry); |
| 914 | return; |
| 915 | } |
| 916 | } |
| 917 | else |
| 918 | { |
| 919 | eTTnode = new EventTypeTable; |
| 920 | eTTnode->eventType = entry.m_eventType; |
| 921 | *peTTnode = eTTnode; |
| 922 | } |
| 923 | |
| 924 | // Fill all hash entries between entry.m_id and entry.m_lastId... |
| 925 | eTTnode->eventEntryTable.Add(&entry); |
| 926 | } |
| 927 | |
| 928 | void wxEventHashTable::AllocEventTypeTable(size_t size) |
| 929 | { |
| 930 | m_eventTypeTable = new EventTypeTablePointer[size]; |
| 931 | memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size); |
| 932 | m_size = size; |
| 933 | } |
| 934 | |
| 935 | void wxEventHashTable::GrowEventTypeTable() |
| 936 | { |
| 937 | size_t oldSize = m_size; |
| 938 | EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable; |
| 939 | |
| 940 | // TODO: Search the most optimal grow sequence |
| 941 | AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1); |
| 942 | |
| 943 | for ( size_t i = 0; i < oldSize; /* */ ) |
| 944 | { |
| 945 | EventTypeTablePointer eTToldNode = oldEventTypeTable[i]; |
| 946 | if (eTToldNode) |
| 947 | { |
| 948 | EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size]; |
| 949 | EventTypeTablePointer eTTnode = *peTTnode; |
| 950 | |
| 951 | // Check for collision, we don't want any. |
| 952 | if (eTTnode) |
| 953 | { |
| 954 | GrowEventTypeTable(); |
| 955 | continue; // Don't increment the counter, |
| 956 | // as we still need to add this element. |
| 957 | } |
| 958 | else |
| 959 | { |
| 960 | // Get the old value and put it in the new table. |
| 961 | *peTTnode = oldEventTypeTable[i]; |
| 962 | } |
| 963 | } |
| 964 | |
| 965 | i++; |
| 966 | } |
| 967 | |
| 968 | delete[] oldEventTypeTable; |
| 969 | } |
| 970 | |
| 971 | |
| 972 | // ---------------------------------------------------------------------------- |
| 973 | // wxEvtHandler |
| 974 | // ---------------------------------------------------------------------------- |
| 975 | |
| 976 | /* |
| 977 | * Event handler |
| 978 | */ |
| 979 | |
| 980 | wxEvtHandler::wxEvtHandler() |
| 981 | { |
| 982 | m_nextHandler = (wxEvtHandler *) NULL; |
| 983 | m_previousHandler = (wxEvtHandler *) NULL; |
| 984 | m_enabled = true; |
| 985 | m_dynamicEvents = (wxList *) NULL; |
| 986 | m_pendingEvents = (wxList *) NULL; |
| 987 | #if wxUSE_THREADS |
| 988 | # if !defined(__VISAGECPP__) |
| 989 | m_eventsLocker = new wxCriticalSection; |
| 990 | # endif |
| 991 | #endif |
| 992 | // no client data (yet) |
| 993 | m_clientData = NULL; |
| 994 | m_clientDataType = wxClientData_None; |
| 995 | } |
| 996 | |
| 997 | wxEvtHandler::~wxEvtHandler() |
| 998 | { |
| 999 | // Takes itself out of the list of handlers |
| 1000 | if (m_previousHandler) |
| 1001 | m_previousHandler->m_nextHandler = m_nextHandler; |
| 1002 | |
| 1003 | if (m_nextHandler) |
| 1004 | m_nextHandler->m_previousHandler = m_previousHandler; |
| 1005 | |
| 1006 | if (m_dynamicEvents) |
| 1007 | { |
| 1008 | wxList::iterator it = m_dynamicEvents->begin(), |
| 1009 | en = m_dynamicEvents->end(); |
| 1010 | for (;it != en; ++it) |
| 1011 | { |
| 1012 | #if WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1013 | wxEventTableEntry *entry = (wxEventTableEntry*)*it; |
| 1014 | #else // !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1015 | wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it; |
| 1016 | #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1017 | |
| 1018 | if (entry->m_callbackUserData) |
| 1019 | delete entry->m_callbackUserData; |
| 1020 | delete entry; |
| 1021 | } |
| 1022 | delete m_dynamicEvents; |
| 1023 | }; |
| 1024 | |
| 1025 | if (m_pendingEvents) |
| 1026 | m_pendingEvents->DeleteContents(true); |
| 1027 | delete m_pendingEvents; |
| 1028 | |
| 1029 | #if wxUSE_THREADS |
| 1030 | # if !defined(__VISAGECPP__) |
| 1031 | delete m_eventsLocker; |
| 1032 | # endif |
| 1033 | |
| 1034 | // Remove us from wxPendingEvents if necessary. |
| 1035 | if(wxPendingEventsLocker) |
| 1036 | wxENTER_CRIT_SECT(*wxPendingEventsLocker); |
| 1037 | if ( wxPendingEvents ) |
| 1038 | { |
| 1039 | // Delete all occurences of this from the list of pending events |
| 1040 | while (wxPendingEvents->DeleteObject(this)) { } // Do nothing |
| 1041 | } |
| 1042 | if(wxPendingEventsLocker) |
| 1043 | wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); |
| 1044 | #endif |
| 1045 | |
| 1046 | // we only delete object data, not untyped |
| 1047 | if ( m_clientDataType == wxClientData_Object ) |
| 1048 | delete m_clientObject; |
| 1049 | } |
| 1050 | |
| 1051 | #if wxUSE_THREADS |
| 1052 | |
| 1053 | bool wxEvtHandler::ProcessThreadEvent(wxEvent& event) |
| 1054 | { |
| 1055 | // check that we are really in a child thread |
| 1056 | wxASSERT_MSG( !wxThread::IsMain(), |
| 1057 | wxT("use ProcessEvent() in main thread") ); |
| 1058 | |
| 1059 | AddPendingEvent(event); |
| 1060 | |
| 1061 | return true; |
| 1062 | } |
| 1063 | |
| 1064 | void wxEvtHandler::ClearEventLocker() |
| 1065 | { |
| 1066 | #if !defined(__VISAGECPP__) |
| 1067 | delete m_eventsLocker; |
| 1068 | m_eventsLocker = NULL; |
| 1069 | #endif |
| 1070 | } |
| 1071 | |
| 1072 | #endif // wxUSE_THREADS |
| 1073 | |
| 1074 | void wxEvtHandler::AddPendingEvent(wxEvent& event) |
| 1075 | { |
| 1076 | // 1) Add event to list of pending events of this event handler |
| 1077 | |
| 1078 | wxEvent *eventCopy = event.Clone(); |
| 1079 | |
| 1080 | // we must be able to copy the events here so the event class must |
| 1081 | // implement Clone() properly instead of just providing a NULL stab for it |
| 1082 | wxCHECK_RET( eventCopy, |
| 1083 | _T("events of this type aren't supposed to be posted") ); |
| 1084 | |
| 1085 | wxENTER_CRIT_SECT( Lock() ); |
| 1086 | |
| 1087 | if ( !m_pendingEvents ) |
| 1088 | m_pendingEvents = new wxList; |
| 1089 | |
| 1090 | m_pendingEvents->Append(eventCopy); |
| 1091 | |
| 1092 | wxLEAVE_CRIT_SECT( Lock() ); |
| 1093 | |
| 1094 | // 2) Add this event handler to list of event handlers that |
| 1095 | // have pending events. |
| 1096 | |
| 1097 | wxENTER_CRIT_SECT(*wxPendingEventsLocker); |
| 1098 | |
| 1099 | if ( !wxPendingEvents ) |
| 1100 | wxPendingEvents = new wxList; |
| 1101 | wxPendingEvents->Append(this); |
| 1102 | |
| 1103 | wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); |
| 1104 | |
| 1105 | // 3) Inform the system that new pending events are somewhere, |
| 1106 | // and that these should be processed in idle time. |
| 1107 | wxWakeUpIdle(); |
| 1108 | } |
| 1109 | |
| 1110 | void wxEvtHandler::ProcessPendingEvents() |
| 1111 | { |
| 1112 | // this method is only called by wxApp if this handler does have pending |
| 1113 | // events |
| 1114 | wxCHECK_RET( m_pendingEvents, |
| 1115 | wxT("Please call wxApp::ProcessPendingEvents() instead") ); |
| 1116 | |
| 1117 | wxENTER_CRIT_SECT( Lock() ); |
| 1118 | |
| 1119 | // we leave the loop once we have processed all events that were present at |
| 1120 | // the start of ProcessPendingEvents because otherwise we could get into |
| 1121 | // infinite loop if the pending event handler execution resulted in another |
| 1122 | // event being posted |
| 1123 | size_t n = m_pendingEvents->size(); |
| 1124 | for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst(); |
| 1125 | node; |
| 1126 | node = m_pendingEvents->GetFirst() ) |
| 1127 | { |
| 1128 | wxEvent *event = (wxEvent *)node->GetData(); |
| 1129 | |
| 1130 | // It's importan we remove event from list before processing it. |
| 1131 | // Else a nested event loop, for example from a modal dialog, might |
| 1132 | // process the same event again. |
| 1133 | m_pendingEvents->Erase(node); |
| 1134 | |
| 1135 | wxLEAVE_CRIT_SECT( Lock() ); |
| 1136 | |
| 1137 | ProcessEvent(*event); |
| 1138 | delete event; |
| 1139 | |
| 1140 | wxENTER_CRIT_SECT( Lock() ); |
| 1141 | |
| 1142 | if ( !--n ) |
| 1143 | break; |
| 1144 | } |
| 1145 | |
| 1146 | wxLEAVE_CRIT_SECT( Lock() ); |
| 1147 | } |
| 1148 | |
| 1149 | /* |
| 1150 | * Event table stuff |
| 1151 | */ |
| 1152 | /* static */ bool |
| 1153 | wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry, |
| 1154 | wxEvtHandler *handler, |
| 1155 | wxEvent& event) |
| 1156 | { |
| 1157 | int tableId1 = entry.m_id, |
| 1158 | tableId2 = entry.m_lastId; |
| 1159 | |
| 1160 | // match only if the event type is the same and the id is either -1 in |
| 1161 | // the event table (meaning "any") or the event id matches the id |
| 1162 | // specified in the event table either exactly or by falling into |
| 1163 | // range between first and last |
| 1164 | if ((tableId1 == wxID_ANY) || |
| 1165 | (tableId2 == wxID_ANY && tableId1 == event.GetId()) || |
| 1166 | (tableId2 != wxID_ANY && |
| 1167 | (event.GetId() >= tableId1 && event.GetId() <= tableId2))) |
| 1168 | { |
| 1169 | event.Skip(false); |
| 1170 | event.m_callbackUserData = entry.m_callbackUserData; |
| 1171 | |
| 1172 | #if wxUSE_EXCEPTIONS |
| 1173 | if ( wxTheApp ) |
| 1174 | { |
| 1175 | // call the handler via wxApp method which allows the user to catch |
| 1176 | // any exceptions which may be thrown by any handler in the program |
| 1177 | // in one place |
| 1178 | wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event); |
| 1179 | } |
| 1180 | else |
| 1181 | #endif // wxUSE_EXCEPTIONS |
| 1182 | { |
| 1183 | // no need for an extra virtual function call |
| 1184 | (handler->*((wxEventFunction) (entry.m_fn)))(event); |
| 1185 | } |
| 1186 | |
| 1187 | if (!event.GetSkipped()) |
| 1188 | return true; |
| 1189 | } |
| 1190 | |
| 1191 | return false; |
| 1192 | } |
| 1193 | |
| 1194 | bool wxEvtHandler::TryParent(wxEvent& event) |
| 1195 | { |
| 1196 | if ( wxTheApp && (this != wxTheApp) ) |
| 1197 | { |
| 1198 | // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always |
| 1199 | // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be |
| 1200 | // processed appropriately via SearchEventTable. |
| 1201 | if ( event.GetEventType() != wxEVT_IDLE ) |
| 1202 | { |
| 1203 | if ( wxTheApp->ProcessEvent(event) ) |
| 1204 | return true; |
| 1205 | } |
| 1206 | } |
| 1207 | |
| 1208 | return false; |
| 1209 | } |
| 1210 | |
| 1211 | bool wxEvtHandler::ProcessEvent(wxEvent& event) |
| 1212 | { |
| 1213 | // allow the application to hook into event processing |
| 1214 | if ( wxTheApp ) |
| 1215 | { |
| 1216 | int rc = wxTheApp->FilterEvent(event); |
| 1217 | if ( rc != -1 ) |
| 1218 | { |
| 1219 | wxASSERT_MSG( rc == 1 || rc == 0, |
| 1220 | _T("unexpected wxApp::FilterEvent return value") ); |
| 1221 | |
| 1222 | return rc != 0; |
| 1223 | } |
| 1224 | //else: proceed normally |
| 1225 | } |
| 1226 | |
| 1227 | // An event handler can be enabled or disabled |
| 1228 | if ( GetEvtHandlerEnabled() ) |
| 1229 | { |
| 1230 | // if we have a validator, it has higher priority than our own event |
| 1231 | // table |
| 1232 | if ( TryValidator(event) ) |
| 1233 | return true; |
| 1234 | |
| 1235 | // Handle per-instance dynamic event tables first |
| 1236 | if ( m_dynamicEvents && SearchDynamicEventTable(event) ) |
| 1237 | return true; |
| 1238 | |
| 1239 | // Then static per-class event tables |
| 1240 | if ( GetEventHashTable().HandleEvent(event, this) ) |
| 1241 | return true; |
| 1242 | } |
| 1243 | |
| 1244 | // Try going down the event handler chain |
| 1245 | if ( GetNextHandler() ) |
| 1246 | { |
| 1247 | if ( GetNextHandler()->ProcessEvent(event) ) |
| 1248 | return true; |
| 1249 | } |
| 1250 | |
| 1251 | // Finally propagate the event upwards the window chain and/or to the |
| 1252 | // application object as necessary |
| 1253 | return TryParent(event); |
| 1254 | } |
| 1255 | |
| 1256 | |
| 1257 | bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event) |
| 1258 | { |
| 1259 | const wxEventType eventType = event.GetEventType(); |
| 1260 | for ( int i = 0; table.entries[i].m_fn != 0; i++ ) |
| 1261 | { |
| 1262 | const wxEventTableEntry& entry = table.entries[i]; |
| 1263 | if ( eventType == entry.m_eventType ) |
| 1264 | { |
| 1265 | if ( ProcessEventIfMatches(entry, this, event) ) |
| 1266 | return true; |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | return false; |
| 1271 | } |
| 1272 | |
| 1273 | void wxEvtHandler::Connect( int id, int lastId, |
| 1274 | int eventType, |
| 1275 | wxObjectEventFunction func, |
| 1276 | wxObject *userData, |
| 1277 | wxEvtHandler* eventSink ) |
| 1278 | { |
| 1279 | #if WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1280 | wxEventTableEntry *entry = new wxEventTableEntry; |
| 1281 | entry->m_eventType = eventType; |
| 1282 | entry->m_id = id; |
| 1283 | entry->m_lastId = lastId; |
| 1284 | entry->m_fn = func; |
| 1285 | entry->m_callbackUserData = userData; |
| 1286 | #else // !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1287 | wxDynamicEventTableEntry *entry = |
| 1288 | new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink); |
| 1289 | #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1290 | |
| 1291 | if (!m_dynamicEvents) |
| 1292 | m_dynamicEvents = new wxList; |
| 1293 | |
| 1294 | // Insert at the front of the list so most recent additions are found first |
| 1295 | m_dynamicEvents->Insert( (wxObject*) entry ); |
| 1296 | } |
| 1297 | |
| 1298 | bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, |
| 1299 | wxObjectEventFunction func, |
| 1300 | wxObject *userData, |
| 1301 | wxEvtHandler* eventSink ) |
| 1302 | { |
| 1303 | if (!m_dynamicEvents) |
| 1304 | return false; |
| 1305 | |
| 1306 | wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); |
| 1307 | while (node) |
| 1308 | { |
| 1309 | #if WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1310 | wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); |
| 1311 | #else // !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1312 | wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); |
| 1313 | #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1314 | |
| 1315 | if ((entry->m_id == id) && |
| 1316 | ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) && |
| 1317 | ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) && |
| 1318 | ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) && |
| 1319 | ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) && |
| 1320 | ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL))) |
| 1321 | { |
| 1322 | if (entry->m_callbackUserData) |
| 1323 | delete entry->m_callbackUserData; |
| 1324 | m_dynamicEvents->Erase( node ); |
| 1325 | delete entry; |
| 1326 | return true; |
| 1327 | } |
| 1328 | node = node->GetNext(); |
| 1329 | } |
| 1330 | return false; |
| 1331 | } |
| 1332 | |
| 1333 | bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event ) |
| 1334 | { |
| 1335 | wxCHECK_MSG( m_dynamicEvents, false, |
| 1336 | wxT("caller should check that we have dynamic events") ); |
| 1337 | |
| 1338 | wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); |
| 1339 | while (node) |
| 1340 | { |
| 1341 | #if WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1342 | wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); |
| 1343 | #else // !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1344 | wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); |
| 1345 | #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1346 | |
| 1347 | if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0)) |
| 1348 | { |
| 1349 | wxEvtHandler *handler = |
| 1350 | #if !WXWIN_COMPATIBILITY_EVENT_TYPES |
| 1351 | entry->m_eventSink ? entry->m_eventSink |
| 1352 | : |
| 1353 | #endif |
| 1354 | this; |
| 1355 | |
| 1356 | if ( ProcessEventIfMatches(*entry, handler, event) ) |
| 1357 | { |
| 1358 | return true; |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | node = node->GetNext(); |
| 1363 | } |
| 1364 | |
| 1365 | return false; |
| 1366 | } |
| 1367 | |
| 1368 | void wxEvtHandler::DoSetClientObject( wxClientData *data ) |
| 1369 | { |
| 1370 | wxASSERT_MSG( m_clientDataType != wxClientData_Void, |
| 1371 | wxT("can't have both object and void client data") ); |
| 1372 | |
| 1373 | if ( m_clientObject ) |
| 1374 | delete m_clientObject; |
| 1375 | |
| 1376 | m_clientObject = data; |
| 1377 | m_clientDataType = wxClientData_Object; |
| 1378 | } |
| 1379 | |
| 1380 | wxClientData *wxEvtHandler::DoGetClientObject() const |
| 1381 | { |
| 1382 | // it's not an error to call GetClientObject() on a window which doesn't |
| 1383 | // have client data at all - NULL will be returned |
| 1384 | wxASSERT_MSG( m_clientDataType != wxClientData_Void, |
| 1385 | wxT("this window doesn't have object client data") ); |
| 1386 | |
| 1387 | return m_clientObject; |
| 1388 | } |
| 1389 | |
| 1390 | void wxEvtHandler::DoSetClientData( void *data ) |
| 1391 | { |
| 1392 | wxASSERT_MSG( m_clientDataType != wxClientData_Object, |
| 1393 | wxT("can't have both object and void client data") ); |
| 1394 | |
| 1395 | m_clientData = data; |
| 1396 | m_clientDataType = wxClientData_Void; |
| 1397 | } |
| 1398 | |
| 1399 | void *wxEvtHandler::DoGetClientData() const |
| 1400 | { |
| 1401 | // it's not an error to call GetClientData() on a window which doesn't have |
| 1402 | // client data at all - NULL will be returned |
| 1403 | wxASSERT_MSG( m_clientDataType != wxClientData_Object, |
| 1404 | wxT("this window doesn't have void client data") ); |
| 1405 | |
| 1406 | return m_clientData; |
| 1407 | } |
| 1408 | |
| 1409 | #endif // wxUSE_BASE |
| 1410 | |
| 1411 | #if wxUSE_GUI |
| 1412 | |
| 1413 | // Find a window with the focus, that is also a descendant of the given window. |
| 1414 | // This is used to determine the window to initially send commands to. |
| 1415 | wxWindow* wxFindFocusDescendant(wxWindow* ancestor) |
| 1416 | { |
| 1417 | // Process events starting with the window with the focus, if any. |
| 1418 | wxWindow* focusWin = wxWindow::FindFocus(); |
| 1419 | wxWindow* win = focusWin; |
| 1420 | |
| 1421 | // Check if this is a descendant of this frame. |
| 1422 | // If not, win will be set to NULL. |
| 1423 | while (win) |
| 1424 | { |
| 1425 | if (win == ancestor) |
| 1426 | break; |
| 1427 | else |
| 1428 | win = win->GetParent(); |
| 1429 | } |
| 1430 | if (win == (wxWindow*) NULL) |
| 1431 | focusWin = (wxWindow*) NULL; |
| 1432 | |
| 1433 | return focusWin; |
| 1434 | } |
| 1435 | |
| 1436 | #endif // wxUSE_GUI |