| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: life.cpp |
| 3 | // Purpose: The game of Life, created by J. H. Conway |
| 4 | // Author: Guillermo Rodriguez Garcia, <guille@iies.es> |
| 5 | // Modified by: |
| 6 | // Created: Jan/2000 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000, Guillermo Rodriguez Garcia |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ========================================================================== |
| 13 | // headers, declarations, constants |
| 14 | // ========================================================================== |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx/wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifdef __BORLANDC__ |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #ifndef WX_PRECOMP |
| 24 | #include "wx/wx.h" |
| 25 | #endif |
| 26 | |
| 27 | #include "wx/statline.h" |
| 28 | #include "wx/wfstream.h" |
| 29 | #include "wx/filedlg.h" |
| 30 | #include "wx/stockitem.h" |
| 31 | |
| 32 | #include "life.h" |
| 33 | #include "game.h" |
| 34 | #include "dialogs.h" |
| 35 | #include "reader.h" |
| 36 | |
| 37 | // -------------------------------------------------------------------------- |
| 38 | // resources |
| 39 | // -------------------------------------------------------------------------- |
| 40 | |
| 41 | #if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__) |
| 42 | // application icon |
| 43 | #include "mondrian.xpm" |
| 44 | |
| 45 | // bitmap buttons for the toolbar |
| 46 | #include "bitmaps/reset.xpm" |
| 47 | #include "bitmaps/open.xpm" |
| 48 | #include "bitmaps/play.xpm" |
| 49 | #include "bitmaps/stop.xpm" |
| 50 | #include "bitmaps/zoomin.xpm" |
| 51 | #include "bitmaps/zoomout.xpm" |
| 52 | #include "bitmaps/info.xpm" |
| 53 | |
| 54 | // navigator |
| 55 | #include "bitmaps/north.xpm" |
| 56 | #include "bitmaps/south.xpm" |
| 57 | #include "bitmaps/east.xpm" |
| 58 | #include "bitmaps/west.xpm" |
| 59 | #include "bitmaps/center.xpm" |
| 60 | #endif |
| 61 | |
| 62 | // -------------------------------------------------------------------------- |
| 63 | // constants |
| 64 | // -------------------------------------------------------------------------- |
| 65 | |
| 66 | // IDs for the controls and the menu commands. Exluding those already defined |
| 67 | // by wxWidgets, such as wxID_NEW. |
| 68 | enum |
| 69 | { |
| 70 | // timer |
| 71 | ID_TIMER = wxID_HIGHEST, |
| 72 | |
| 73 | // file menu |
| 74 | ID_SAMPLES, |
| 75 | |
| 76 | // view menu |
| 77 | ID_SHOWNAV, |
| 78 | ID_ORIGIN, |
| 79 | ID_CENTER, |
| 80 | ID_NORTH, |
| 81 | ID_SOUTH, |
| 82 | ID_EAST, |
| 83 | ID_WEST, |
| 84 | ID_INFO, |
| 85 | |
| 86 | // game menu |
| 87 | ID_START, |
| 88 | ID_STEP, |
| 89 | ID_TOPSPEED, |
| 90 | |
| 91 | // speed selection slider |
| 92 | ID_SLIDER |
| 93 | }; |
| 94 | |
| 95 | // -------------------------------------------------------------------------- |
| 96 | // event tables and other macros for wxWidgets |
| 97 | // -------------------------------------------------------------------------- |
| 98 | |
| 99 | // Event tables |
| 100 | BEGIN_EVENT_TABLE(LifeFrame, wxFrame) |
| 101 | EVT_MENU (wxID_NEW, LifeFrame::OnMenu) |
| 102 | #if wxUSE_FILEDLG |
| 103 | EVT_MENU (wxID_OPEN, LifeFrame::OnOpen) |
| 104 | #endif |
| 105 | EVT_MENU (ID_SAMPLES, LifeFrame::OnSamples) |
| 106 | EVT_MENU (wxID_ABOUT, LifeFrame::OnMenu) |
| 107 | EVT_MENU (wxID_EXIT, LifeFrame::OnMenu) |
| 108 | EVT_MENU (ID_SHOWNAV, LifeFrame::OnMenu) |
| 109 | EVT_MENU (ID_ORIGIN, LifeFrame::OnNavigate) |
| 110 | EVT_BUTTON (ID_CENTER, LifeFrame::OnNavigate) |
| 111 | EVT_BUTTON (ID_NORTH, LifeFrame::OnNavigate) |
| 112 | EVT_BUTTON (ID_SOUTH, LifeFrame::OnNavigate) |
| 113 | EVT_BUTTON (ID_EAST, LifeFrame::OnNavigate) |
| 114 | EVT_BUTTON (ID_WEST, LifeFrame::OnNavigate) |
| 115 | EVT_MENU (wxID_ZOOM_IN, LifeFrame::OnZoom) |
| 116 | EVT_MENU (wxID_ZOOM_OUT,LifeFrame::OnZoom) |
| 117 | EVT_MENU (ID_INFO, LifeFrame::OnMenu) |
| 118 | EVT_MENU (ID_START, LifeFrame::OnMenu) |
| 119 | EVT_MENU (ID_STEP, LifeFrame::OnMenu) |
| 120 | EVT_MENU (wxID_STOP, LifeFrame::OnMenu) |
| 121 | EVT_MENU (ID_TOPSPEED, LifeFrame::OnMenu) |
| 122 | EVT_COMMAND_SCROLL (ID_SLIDER, LifeFrame::OnSlider) |
| 123 | EVT_TIMER (ID_TIMER, LifeFrame::OnTimer) |
| 124 | EVT_CLOSE ( LifeFrame::OnClose) |
| 125 | END_EVENT_TABLE() |
| 126 | |
| 127 | BEGIN_EVENT_TABLE(LifeNavigator, wxMiniFrame) |
| 128 | EVT_CLOSE ( LifeNavigator::OnClose) |
| 129 | END_EVENT_TABLE() |
| 130 | |
| 131 | BEGIN_EVENT_TABLE(LifeCanvas, wxWindow) |
| 132 | EVT_PAINT ( LifeCanvas::OnPaint) |
| 133 | EVT_SCROLLWIN ( LifeCanvas::OnScroll) |
| 134 | EVT_SIZE ( LifeCanvas::OnSize) |
| 135 | EVT_MOTION ( LifeCanvas::OnMouse) |
| 136 | EVT_LEFT_DOWN ( LifeCanvas::OnMouse) |
| 137 | EVT_LEFT_UP ( LifeCanvas::OnMouse) |
| 138 | EVT_LEFT_DCLICK ( LifeCanvas::OnMouse) |
| 139 | EVT_ERASE_BACKGROUND( LifeCanvas::OnEraseBackground) |
| 140 | END_EVENT_TABLE() |
| 141 | |
| 142 | |
| 143 | // Create a new application object |
| 144 | IMPLEMENT_APP(LifeApp) |
| 145 | |
| 146 | |
| 147 | // ========================================================================== |
| 148 | // implementation |
| 149 | // ========================================================================== |
| 150 | |
| 151 | // some shortcuts |
| 152 | #define ADD_TOOL(id, bmp, tooltip, help) \ |
| 153 | toolBar->AddTool(id, wxEmptyString, bmp, wxNullBitmap, wxITEM_NORMAL, tooltip, help) |
| 154 | |
| 155 | |
| 156 | // -------------------------------------------------------------------------- |
| 157 | // LifeApp |
| 158 | // -------------------------------------------------------------------------- |
| 159 | |
| 160 | // 'Main program' equivalent: the program execution "starts" here |
| 161 | bool LifeApp::OnInit() |
| 162 | { |
| 163 | // create the main application window |
| 164 | LifeFrame *frame = new LifeFrame(); |
| 165 | |
| 166 | // show it and tell the application that it's our main window |
| 167 | frame->Show(true); |
| 168 | SetTopWindow(frame); |
| 169 | |
| 170 | // just for Motif |
| 171 | #ifdef __WXMOTIF__ |
| 172 | frame->UpdateInfoText(); |
| 173 | #endif |
| 174 | |
| 175 | // enter the main message loop and run the app |
| 176 | return true; |
| 177 | } |
| 178 | |
| 179 | // -------------------------------------------------------------------------- |
| 180 | // LifeFrame |
| 181 | // -------------------------------------------------------------------------- |
| 182 | |
| 183 | // frame constructor |
| 184 | LifeFrame::LifeFrame() : |
| 185 | wxFrame( (wxFrame *) NULL, wxID_ANY, _("Life!"), wxDefaultPosition ), |
| 186 | m_navigator(NULL) |
| 187 | { |
| 188 | // frame icon |
| 189 | SetIcon(wxICON(mondrian)); |
| 190 | |
| 191 | // menu bar |
| 192 | wxMenu *menuFile = new wxMenu(wxMENU_TEAROFF); |
| 193 | wxMenu *menuView = new wxMenu(wxMENU_TEAROFF); |
| 194 | wxMenu *menuGame = new wxMenu(wxMENU_TEAROFF); |
| 195 | wxMenu *menuHelp = new wxMenu(wxMENU_TEAROFF); |
| 196 | |
| 197 | menuFile->Append(wxID_NEW, wxEmptyString, _("Start a new game")); |
| 198 | #if wxUSE_FILEDLG |
| 199 | menuFile->Append(wxID_OPEN, wxEmptyString, _("Open an existing Life pattern")); |
| 200 | #endif |
| 201 | menuFile->Append(ID_SAMPLES, _("&Sample game..."), _("Select a sample configuration")); |
| 202 | #if ! (defined(__SMARTPHONE__) || defined(__POCKETPC__)) |
| 203 | menuFile->AppendSeparator(); |
| 204 | menuFile->Append(wxID_EXIT); |
| 205 | |
| 206 | menuView->Append(ID_SHOWNAV, _("Navigation &toolbox"), _("Show or hide toolbox"), wxITEM_CHECK); |
| 207 | menuView->Check(ID_SHOWNAV, true); |
| 208 | menuView->AppendSeparator(); |
| 209 | #endif |
| 210 | |
| 211 | menuView->Append(ID_ORIGIN, _("&Absolute origin"), _("Go to (0, 0)")); |
| 212 | menuView->Append(ID_CENTER, _("&Center of mass"), _("Find center of mass")); |
| 213 | menuView->Append(ID_NORTH, _("&North"), _("Find northernmost cell")); |
| 214 | menuView->Append(ID_SOUTH, _("&South"), _("Find southernmost cell")); |
| 215 | menuView->Append(ID_EAST, _("&East"), _("Find easternmost cell")); |
| 216 | menuView->Append(ID_WEST, _("&West"), _("Find westernmost cell")); |
| 217 | menuView->AppendSeparator(); |
| 218 | menuView->Append(wxID_ZOOM_IN, wxEmptyString, _("Zoom in")); |
| 219 | menuView->Append(wxID_ZOOM_OUT, wxEmptyString, _("Zoom out")); |
| 220 | menuView->Append(ID_INFO, _("&Description\tCtrl-D"), _("View pattern description")); |
| 221 | |
| 222 | menuGame->Append(ID_START, _("&Start\tCtrl-S"), _("Start")); |
| 223 | menuGame->Append(ID_STEP, _("&Next\tCtrl-N"), _("Single step")); |
| 224 | menuGame->Append(wxID_STOP, wxEmptyString, _("Stop")); |
| 225 | menuGame->Enable(wxID_STOP, false); |
| 226 | menuGame->AppendSeparator(); |
| 227 | menuGame->Append(ID_TOPSPEED, _("T&op speed!"), _("Go as fast as possible")); |
| 228 | |
| 229 | menuHelp->Append(wxID_ABOUT, _("&About\tCtrl-A"), _("Show about dialog")); |
| 230 | |
| 231 | wxMenuBar *menuBar = new wxMenuBar(); |
| 232 | menuBar->Append(menuFile, _("&File")); |
| 233 | menuBar->Append(menuView, _("&View")); |
| 234 | menuBar->Append(menuGame, _("&Game")); |
| 235 | menuBar->Append(menuHelp, _("&Help")); |
| 236 | SetMenuBar(menuBar); |
| 237 | |
| 238 | // tool bar |
| 239 | wxBitmap tbBitmaps[7]; |
| 240 | |
| 241 | tbBitmaps[0] = wxBITMAP(reset); |
| 242 | tbBitmaps[1] = wxBITMAP(open); |
| 243 | tbBitmaps[2] = wxBITMAP(zoomin); |
| 244 | tbBitmaps[3] = wxBITMAP(zoomout); |
| 245 | tbBitmaps[4] = wxBITMAP(info); |
| 246 | tbBitmaps[5] = wxBITMAP(play); |
| 247 | tbBitmaps[6] = wxBITMAP(stop); |
| 248 | |
| 249 | wxToolBar *toolBar = CreateToolBar(); |
| 250 | toolBar->SetMargins(5, 5); |
| 251 | toolBar->SetToolBitmapSize(wxSize(16, 16)); |
| 252 | |
| 253 | ADD_TOOL(wxID_NEW, tbBitmaps[0], wxGetStockLabel(wxID_NEW, wxSTOCK_NOFLAGS), _("Start a new game")); |
| 254 | #ifndef __POCKETPC__ |
| 255 | #if wxUSE_FILEDLG |
| 256 | ADD_TOOL(wxID_OPEN, tbBitmaps[1], wxGetStockLabel(wxID_OPEN, wxSTOCK_NOFLAGS), _("Open an existing Life pattern")); |
| 257 | #endif // wxUSE_FILEDLG |
| 258 | |
| 259 | toolBar->AddSeparator(); |
| 260 | ADD_TOOL(wxID_ZOOM_IN, tbBitmaps[2], wxGetStockLabel(wxID_ZOOM_IN, wxSTOCK_NOFLAGS), _("Zoom in")); |
| 261 | ADD_TOOL(wxID_ZOOM_OUT, tbBitmaps[3], wxGetStockLabel(wxID_ZOOM_OUT, wxSTOCK_NOFLAGS), _("Zoom out")); |
| 262 | ADD_TOOL(ID_INFO, tbBitmaps[4], _("Description"), _("Show description")); |
| 263 | toolBar->AddSeparator(); |
| 264 | #endif // __POCKETPC__ |
| 265 | ADD_TOOL(ID_START, tbBitmaps[5], _("Start"), _("Start")); |
| 266 | ADD_TOOL(wxID_STOP, tbBitmaps[6], _("Stop"), _("Stop")); |
| 267 | |
| 268 | toolBar->Realize(); |
| 269 | toolBar->EnableTool(wxID_STOP, false); // must be after Realize() ! |
| 270 | |
| 271 | #if wxUSE_STATUSBAR |
| 272 | // status bar |
| 273 | CreateStatusBar(2); |
| 274 | SetStatusText(_("Welcome to Life!")); |
| 275 | #endif // wxUSE_STATUSBAR |
| 276 | |
| 277 | // game and timer |
| 278 | m_life = new Life(); |
| 279 | m_timer = new wxTimer(this, ID_TIMER); |
| 280 | m_running = false; |
| 281 | m_topspeed = false; |
| 282 | m_interval = 500; |
| 283 | m_tics = 0; |
| 284 | |
| 285 | // We use two different panels to reduce flicker in wxGTK, because |
| 286 | // some widgets (like wxStaticText) don't have their own X11 window, |
| 287 | // and thus updating the text would result in a refresh of the canvas |
| 288 | // if they belong to the same parent. |
| 289 | |
| 290 | wxPanel *panel1 = new wxPanel(this, wxID_ANY); |
| 291 | wxPanel *panel2 = new wxPanel(this, wxID_ANY); |
| 292 | |
| 293 | // canvas |
| 294 | m_canvas = new LifeCanvas(panel1, m_life); |
| 295 | |
| 296 | // info panel |
| 297 | m_text = new wxStaticText(panel2, wxID_ANY, |
| 298 | wxEmptyString, |
| 299 | wxDefaultPosition, |
| 300 | wxDefaultSize, |
| 301 | wxALIGN_CENTER | wxST_NO_AUTORESIZE); |
| 302 | |
| 303 | wxSlider *slider = new wxSlider(panel2, ID_SLIDER, |
| 304 | 5, 1, 10, |
| 305 | wxDefaultPosition, |
| 306 | wxSize(200, wxDefaultCoord), |
| 307 | wxSL_HORIZONTAL | wxSL_AUTOTICKS); |
| 308 | |
| 309 | UpdateInfoText(); |
| 310 | |
| 311 | // component layout |
| 312 | wxBoxSizer *sizer1 = new wxBoxSizer(wxVERTICAL); |
| 313 | wxBoxSizer *sizer2 = new wxBoxSizer(wxVERTICAL); |
| 314 | wxBoxSizer *sizer3 = new wxBoxSizer(wxVERTICAL); |
| 315 | |
| 316 | #if wxUSE_STATLINE |
| 317 | sizer1->Add( new wxStaticLine(panel1, wxID_ANY), 0, wxGROW ); |
| 318 | #endif // wxUSE_STATLINE |
| 319 | sizer1->Add( m_canvas, 1, wxGROW | wxALL, 2 ); |
| 320 | #if wxUSE_STATLINE |
| 321 | sizer1->Add( new wxStaticLine(panel1, wxID_ANY), 0, wxGROW ); |
| 322 | #endif // wxUSE_STATLINE |
| 323 | panel1->SetSizer( sizer1 ); |
| 324 | sizer1->Fit( panel1 ); |
| 325 | |
| 326 | sizer2->Add( m_text, 0, wxGROW | wxTOP, 4 ); |
| 327 | sizer2->Add( slider, 0, wxCENTRE | wxALL, 4 ); |
| 328 | |
| 329 | panel2->SetSizer( sizer2 ); |
| 330 | sizer2->Fit( panel2 ); |
| 331 | |
| 332 | sizer3->Add( panel1, 1, wxGROW ); |
| 333 | sizer3->Add( panel2, 0, wxGROW ); |
| 334 | SetSizer( sizer3 ); |
| 335 | |
| 336 | #ifndef __WXWINCE__ |
| 337 | sizer3->Fit( this ); |
| 338 | |
| 339 | // set minimum frame size |
| 340 | sizer3->SetSizeHints( this ); |
| 341 | |
| 342 | // navigator frame - not appropriate for small devices |
| 343 | m_navigator = new LifeNavigator(this); |
| 344 | #endif |
| 345 | |
| 346 | } |
| 347 | |
| 348 | LifeFrame::~LifeFrame() |
| 349 | { |
| 350 | delete m_timer; |
| 351 | } |
| 352 | |
| 353 | void LifeFrame::UpdateInfoText() |
| 354 | { |
| 355 | wxString msg; |
| 356 | |
| 357 | msg.Printf(_(" Generation: %u (T: %u ms), Population: %u "), |
| 358 | m_tics, |
| 359 | m_topspeed? 0 : m_interval, |
| 360 | m_life->GetNumCells()); |
| 361 | m_text->SetLabel(msg); |
| 362 | } |
| 363 | |
| 364 | // Enable or disable tools and menu entries according to the current |
| 365 | // state. See also wxEVT_UPDATE_UI events for a slightly different |
| 366 | // way to do this. |
| 367 | void LifeFrame::UpdateUI() |
| 368 | { |
| 369 | // start / stop |
| 370 | GetToolBar()->EnableTool(ID_START, !m_running); |
| 371 | GetToolBar()->EnableTool(wxID_STOP, m_running); |
| 372 | GetMenuBar()->Enable(ID_START, !m_running); |
| 373 | GetMenuBar()->Enable(ID_STEP, !m_running); |
| 374 | GetMenuBar()->Enable(wxID_STOP, m_running); |
| 375 | GetMenuBar()->Enable(ID_TOPSPEED, !m_topspeed); |
| 376 | |
| 377 | // zooming |
| 378 | int cellsize = m_canvas->GetCellSize(); |
| 379 | GetToolBar()->EnableTool(wxID_ZOOM_IN, cellsize < 32); |
| 380 | GetToolBar()->EnableTool(wxID_ZOOM_OUT, cellsize > 1); |
| 381 | GetMenuBar()->Enable(wxID_ZOOM_IN, cellsize < 32); |
| 382 | GetMenuBar()->Enable(wxID_ZOOM_OUT, cellsize > 1); |
| 383 | } |
| 384 | |
| 385 | // Event handlers ----------------------------------------------------------- |
| 386 | |
| 387 | // OnMenu handles all events which don't have their own event handler |
| 388 | void LifeFrame::OnMenu(wxCommandEvent& event) |
| 389 | { |
| 390 | switch (event.GetId()) |
| 391 | { |
| 392 | case wxID_NEW: |
| 393 | { |
| 394 | // stop if it was running |
| 395 | OnStop(); |
| 396 | m_life->Clear(); |
| 397 | m_canvas->Recenter(0, 0); |
| 398 | m_tics = 0; |
| 399 | UpdateInfoText(); |
| 400 | break; |
| 401 | } |
| 402 | case wxID_ABOUT: |
| 403 | { |
| 404 | LifeAboutDialog dialog(this); |
| 405 | dialog.ShowModal(); |
| 406 | break; |
| 407 | } |
| 408 | case wxID_EXIT: |
| 409 | { |
| 410 | // true is to force the frame to close |
| 411 | Close(true); |
| 412 | break; |
| 413 | } |
| 414 | case ID_SHOWNAV: |
| 415 | { |
| 416 | bool checked = GetMenuBar()->GetMenu(1)->IsChecked(ID_SHOWNAV); |
| 417 | if (m_navigator) |
| 418 | m_navigator->Show(checked); |
| 419 | break; |
| 420 | } |
| 421 | case ID_INFO: |
| 422 | { |
| 423 | wxString desc = m_life->GetDescription(); |
| 424 | |
| 425 | if ( desc.empty() ) |
| 426 | desc = _("Not available"); |
| 427 | |
| 428 | // should we make the description editable here? |
| 429 | wxMessageBox(desc, _("Description"), wxOK | wxICON_INFORMATION); |
| 430 | |
| 431 | break; |
| 432 | } |
| 433 | case ID_START : OnStart(); break; |
| 434 | case ID_STEP : OnStep(); break; |
| 435 | case wxID_STOP : OnStop(); break; |
| 436 | case ID_TOPSPEED: |
| 437 | { |
| 438 | m_running = true; |
| 439 | m_topspeed = true; |
| 440 | UpdateUI(); |
| 441 | while (m_running && m_topspeed) |
| 442 | { |
| 443 | OnStep(); |
| 444 | wxYield(); |
| 445 | } |
| 446 | break; |
| 447 | } |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | #if wxUSE_FILEDLG |
| 452 | void LifeFrame::OnOpen(wxCommandEvent& WXUNUSED(event)) |
| 453 | { |
| 454 | wxFileDialog filedlg(this, |
| 455 | _("Choose a file to open"), |
| 456 | wxEmptyString, |
| 457 | wxEmptyString, |
| 458 | _("Life patterns (*.lif)|*.lif|All files (*.*)|*.*"), |
| 459 | wxFD_OPEN | wxFD_FILE_MUST_EXIST); |
| 460 | |
| 461 | if (filedlg.ShowModal() == wxID_OK) |
| 462 | { |
| 463 | wxFileInputStream stream(filedlg.GetPath()); |
| 464 | LifeReader reader(stream); |
| 465 | |
| 466 | // the reader handles errors itself, no need to do anything here |
| 467 | if (reader.IsOk()) |
| 468 | { |
| 469 | // stop if running and put the pattern |
| 470 | OnStop(); |
| 471 | m_life->Clear(); |
| 472 | m_life->SetPattern(reader.GetPattern()); |
| 473 | |
| 474 | // recenter canvas |
| 475 | m_canvas->Recenter(0, 0); |
| 476 | m_tics = 0; |
| 477 | UpdateInfoText(); |
| 478 | } |
| 479 | } |
| 480 | } |
| 481 | #endif |
| 482 | |
| 483 | void LifeFrame::OnSamples(wxCommandEvent& WXUNUSED(event)) |
| 484 | { |
| 485 | // stop if it was running |
| 486 | OnStop(); |
| 487 | |
| 488 | // dialog box |
| 489 | LifeSamplesDialog dialog(this); |
| 490 | |
| 491 | if (dialog.ShowModal() == wxID_OK) |
| 492 | { |
| 493 | const LifePattern pattern = dialog.GetPattern(); |
| 494 | |
| 495 | // put the pattern |
| 496 | m_life->Clear(); |
| 497 | m_life->SetPattern(pattern); |
| 498 | |
| 499 | // recenter canvas |
| 500 | m_canvas->Recenter(0, 0); |
| 501 | m_tics = 0; |
| 502 | UpdateInfoText(); |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | void LifeFrame::OnZoom(wxCommandEvent& event) |
| 507 | { |
| 508 | int cellsize = m_canvas->GetCellSize(); |
| 509 | |
| 510 | if ((event.GetId() == wxID_ZOOM_IN) && cellsize < 32) |
| 511 | { |
| 512 | m_canvas->SetCellSize(cellsize * 2); |
| 513 | UpdateUI(); |
| 514 | } |
| 515 | else if ((event.GetId() == wxID_ZOOM_OUT) && cellsize > 1) |
| 516 | { |
| 517 | m_canvas->SetCellSize(cellsize / 2); |
| 518 | UpdateUI(); |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | void LifeFrame::OnNavigate(wxCommandEvent& event) |
| 523 | { |
| 524 | LifeCell c; |
| 525 | |
| 526 | switch (event.GetId()) |
| 527 | { |
| 528 | case ID_NORTH: c = m_life->FindNorth(); break; |
| 529 | case ID_SOUTH: c = m_life->FindSouth(); break; |
| 530 | case ID_WEST: c = m_life->FindWest(); break; |
| 531 | case ID_EAST: c = m_life->FindEast(); break; |
| 532 | case ID_CENTER: c = m_life->FindCenter(); break; |
| 533 | default : |
| 534 | wxFAIL; |
| 535 | // Fall through! |
| 536 | case ID_ORIGIN: c.i = c.j = 0; break; |
| 537 | } |
| 538 | |
| 539 | m_canvas->Recenter(c.i, c.j); |
| 540 | } |
| 541 | |
| 542 | void LifeFrame::OnSlider(wxScrollEvent& event) |
| 543 | { |
| 544 | m_interval = event.GetPosition() * 100; |
| 545 | |
| 546 | if (m_running) |
| 547 | { |
| 548 | OnStop(); |
| 549 | OnStart(); |
| 550 | } |
| 551 | |
| 552 | UpdateInfoText(); |
| 553 | } |
| 554 | |
| 555 | void LifeFrame::OnTimer(wxTimerEvent& WXUNUSED(event)) |
| 556 | { |
| 557 | OnStep(); |
| 558 | } |
| 559 | |
| 560 | void LifeFrame::OnClose(wxCloseEvent& WXUNUSED(event)) |
| 561 | { |
| 562 | // Stop if it was running; this is absolutely needed because |
| 563 | // the frame won't be actually destroyed until there are no |
| 564 | // more pending events, and this in turn won't ever happen |
| 565 | // if the timer is running faster than the window can redraw. |
| 566 | OnStop(); |
| 567 | Destroy(); |
| 568 | } |
| 569 | |
| 570 | void LifeFrame::OnStart() |
| 571 | { |
| 572 | if (!m_running) |
| 573 | { |
| 574 | m_timer->Start(m_interval); |
| 575 | m_running = true; |
| 576 | UpdateUI(); |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | void LifeFrame::OnStop() |
| 581 | { |
| 582 | if (m_running) |
| 583 | { |
| 584 | m_timer->Stop(); |
| 585 | m_running = false; |
| 586 | m_topspeed = false; |
| 587 | UpdateUI(); |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | void LifeFrame::OnStep() |
| 592 | { |
| 593 | if (m_life->NextTic()) |
| 594 | m_tics++; |
| 595 | else |
| 596 | OnStop(); |
| 597 | |
| 598 | m_canvas->DrawChanged(); |
| 599 | UpdateInfoText(); |
| 600 | } |
| 601 | |
| 602 | |
| 603 | // -------------------------------------------------------------------------- |
| 604 | // LifeNavigator miniframe |
| 605 | // -------------------------------------------------------------------------- |
| 606 | |
| 607 | LifeNavigator::LifeNavigator(wxWindow *parent) |
| 608 | : wxMiniFrame(parent, wxID_ANY, |
| 609 | _("Navigation"), |
| 610 | wxDefaultPosition, |
| 611 | wxDefaultSize, |
| 612 | wxCAPTION | wxSIMPLE_BORDER) |
| 613 | { |
| 614 | wxPanel *panel = new wxPanel(this, wxID_ANY); |
| 615 | wxBoxSizer *sizer1 = new wxBoxSizer(wxVERTICAL); |
| 616 | wxBoxSizer *sizer2 = new wxBoxSizer(wxHORIZONTAL); |
| 617 | |
| 618 | // create bitmaps and masks for the buttons |
| 619 | wxBitmap |
| 620 | bmpn = wxBITMAP(north), |
| 621 | bmpw = wxBITMAP(west), |
| 622 | bmpc = wxBITMAP(center), |
| 623 | bmpe = wxBITMAP(east), |
| 624 | bmps = wxBITMAP(south); |
| 625 | |
| 626 | #if !defined(__WXGTK__) && !defined(__WXMOTIF__) && !defined(__WXMAC__) |
| 627 | bmpn.SetMask(new wxMask(bmpn, *wxLIGHT_GREY)); |
| 628 | bmpw.SetMask(new wxMask(bmpw, *wxLIGHT_GREY)); |
| 629 | bmpc.SetMask(new wxMask(bmpc, *wxLIGHT_GREY)); |
| 630 | bmpe.SetMask(new wxMask(bmpe, *wxLIGHT_GREY)); |
| 631 | bmps.SetMask(new wxMask(bmps, *wxLIGHT_GREY)); |
| 632 | #endif |
| 633 | |
| 634 | // create the buttons and attach tooltips to them |
| 635 | wxBitmapButton |
| 636 | *bn = new wxBitmapButton(panel, ID_NORTH, bmpn), |
| 637 | *bw = new wxBitmapButton(panel, ID_WEST , bmpw), |
| 638 | *bc = new wxBitmapButton(panel, ID_CENTER, bmpc), |
| 639 | *be = new wxBitmapButton(panel, ID_EAST , bmpe), |
| 640 | *bs = new wxBitmapButton(panel, ID_SOUTH, bmps); |
| 641 | |
| 642 | #if wxUSE_TOOLTIPS |
| 643 | bn->SetToolTip(_("Find northernmost cell")); |
| 644 | bw->SetToolTip(_("Find westernmost cell")); |
| 645 | bc->SetToolTip(_("Find center of mass")); |
| 646 | be->SetToolTip(_("Find easternmost cell")); |
| 647 | bs->SetToolTip(_("Find southernmost cell")); |
| 648 | #endif |
| 649 | |
| 650 | // add buttons to sizers |
| 651 | sizer2->Add( bw, 0, wxCENTRE | wxWEST, 4 ); |
| 652 | sizer2->Add( bc, 0, wxCENTRE); |
| 653 | sizer2->Add( be, 0, wxCENTRE | wxEAST, 4 ); |
| 654 | sizer1->Add( bn, 0, wxCENTRE | wxNORTH, 4 ); |
| 655 | sizer1->Add( sizer2 ); |
| 656 | sizer1->Add( bs, 0, wxCENTRE | wxSOUTH, 4 ); |
| 657 | |
| 658 | // set the panel and miniframe size |
| 659 | panel->SetSizer(sizer1); |
| 660 | |
| 661 | sizer1->Fit(panel); |
| 662 | SetClientSize(panel->GetSize()); |
| 663 | wxSize sz = GetSize(); |
| 664 | SetSizeHints(sz.x, sz.y, sz.x, sz.y); |
| 665 | |
| 666 | // move it to a sensible position |
| 667 | wxRect parentRect = parent->GetRect(); |
| 668 | wxSize childSize = GetSize(); |
| 669 | int x = parentRect.GetX() + |
| 670 | parentRect.GetWidth(); |
| 671 | int y = parentRect.GetY() + |
| 672 | (parentRect.GetHeight() - childSize.GetHeight()) / 4; |
| 673 | Move(x, y); |
| 674 | |
| 675 | // done |
| 676 | Show(true); |
| 677 | } |
| 678 | |
| 679 | void LifeNavigator::OnClose(wxCloseEvent& event) |
| 680 | { |
| 681 | // avoid if we can |
| 682 | if (event.CanVeto()) |
| 683 | event.Veto(); |
| 684 | else |
| 685 | Destroy(); |
| 686 | } |
| 687 | |
| 688 | |
| 689 | // -------------------------------------------------------------------------- |
| 690 | // LifeCanvas |
| 691 | // -------------------------------------------------------------------------- |
| 692 | |
| 693 | // canvas constructor |
| 694 | LifeCanvas::LifeCanvas(wxWindow *parent, Life *life, bool interactive) |
| 695 | : wxWindow(parent, wxID_ANY, wxDefaultPosition, wxSize(100, 100), |
| 696 | wxFULL_REPAINT_ON_RESIZE | wxHSCROLL | wxVSCROLL |
| 697 | #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__) |
| 698 | |wxSUNKEN_BORDER |
| 699 | #else |
| 700 | |wxSIMPLE_BORDER |
| 701 | #endif |
| 702 | ) |
| 703 | { |
| 704 | m_life = life; |
| 705 | m_interactive = interactive; |
| 706 | m_cellsize = 8; |
| 707 | m_status = MOUSE_NOACTION; |
| 708 | m_viewportX = 0; |
| 709 | m_viewportY = 0; |
| 710 | m_viewportH = 0; |
| 711 | m_viewportW = 0; |
| 712 | |
| 713 | if (m_interactive) |
| 714 | SetCursor(*wxCROSS_CURSOR); |
| 715 | |
| 716 | // reduce flicker if wxEVT_ERASE_BACKGROUND is not available |
| 717 | SetBackgroundColour(*wxWHITE); |
| 718 | } |
| 719 | |
| 720 | LifeCanvas::~LifeCanvas() |
| 721 | { |
| 722 | delete m_life; |
| 723 | } |
| 724 | |
| 725 | // recenter at the given position |
| 726 | void LifeCanvas::Recenter(wxInt32 i, wxInt32 j) |
| 727 | { |
| 728 | m_viewportX = i - m_viewportW / 2; |
| 729 | m_viewportY = j - m_viewportH / 2; |
| 730 | |
| 731 | // redraw everything |
| 732 | Refresh(false); |
| 733 | } |
| 734 | |
| 735 | // set the cell size and refresh display |
| 736 | void LifeCanvas::SetCellSize(int cellsize) |
| 737 | { |
| 738 | m_cellsize = cellsize; |
| 739 | |
| 740 | // find current center |
| 741 | wxInt32 cx = m_viewportX + m_viewportW / 2; |
| 742 | wxInt32 cy = m_viewportY + m_viewportH / 2; |
| 743 | |
| 744 | // get current canvas size and adjust viewport accordingly |
| 745 | int w, h; |
| 746 | GetClientSize(&w, &h); |
| 747 | m_viewportW = (w + m_cellsize - 1) / m_cellsize; |
| 748 | m_viewportH = (h + m_cellsize - 1) / m_cellsize; |
| 749 | |
| 750 | // recenter |
| 751 | m_viewportX = cx - m_viewportW / 2; |
| 752 | m_viewportY = cy - m_viewportH / 2; |
| 753 | |
| 754 | // adjust scrollbars |
| 755 | if (m_interactive) |
| 756 | { |
| 757 | SetScrollbar(wxHORIZONTAL, m_viewportW, m_viewportW, 3 * m_viewportW); |
| 758 | SetScrollbar(wxVERTICAL, m_viewportH, m_viewportH, 3 * m_viewportH); |
| 759 | m_thumbX = m_viewportW; |
| 760 | m_thumbY = m_viewportH; |
| 761 | } |
| 762 | |
| 763 | Refresh(false); |
| 764 | } |
| 765 | |
| 766 | // draw a cell |
| 767 | void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, bool alive) |
| 768 | { |
| 769 | wxClientDC dc(this); |
| 770 | |
| 771 | dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN); |
| 772 | dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH); |
| 773 | |
| 774 | DrawCell(i, j, dc); |
| 775 | } |
| 776 | |
| 777 | void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, wxDC &dc) |
| 778 | { |
| 779 | wxCoord x = CellToX(i); |
| 780 | wxCoord y = CellToY(j); |
| 781 | |
| 782 | // if cellsize is 1 or 2, there will be no grid |
| 783 | switch (m_cellsize) |
| 784 | { |
| 785 | case 1: |
| 786 | dc.DrawPoint(x, y); |
| 787 | break; |
| 788 | case 2: |
| 789 | dc.DrawRectangle(x, y, 2, 2); |
| 790 | break; |
| 791 | default: |
| 792 | dc.DrawRectangle(x + 1, y + 1, m_cellsize - 1, m_cellsize - 1); |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | // draw all changed cells |
| 797 | void LifeCanvas::DrawChanged() |
| 798 | { |
| 799 | wxClientDC dc(this); |
| 800 | |
| 801 | size_t ncells; |
| 802 | LifeCell *cells; |
| 803 | bool done = false; |
| 804 | |
| 805 | m_life->BeginFind(m_viewportX, |
| 806 | m_viewportY, |
| 807 | m_viewportX + m_viewportW, |
| 808 | m_viewportY + m_viewportH, |
| 809 | true); |
| 810 | |
| 811 | if (m_cellsize == 1) |
| 812 | { |
| 813 | dc.SetPen(*wxBLACK_PEN); |
| 814 | } |
| 815 | else |
| 816 | { |
| 817 | dc.SetPen(*wxTRANSPARENT_PEN); |
| 818 | dc.SetBrush(*wxBLACK_BRUSH); |
| 819 | } |
| 820 | dc.SetLogicalFunction(wxINVERT); |
| 821 | |
| 822 | while (!done) |
| 823 | { |
| 824 | done = m_life->FindMore(&cells, &ncells); |
| 825 | |
| 826 | for (size_t m = 0; m < ncells; m++) |
| 827 | DrawCell(cells[m].i, cells[m].j, dc); |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | // event handlers |
| 832 | void LifeCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) |
| 833 | { |
| 834 | wxPaintDC dc(this); |
| 835 | wxRect rect = GetUpdateRegion().GetBox(); |
| 836 | wxCoord x, y, w, h; |
| 837 | wxInt32 i0, j0, i1, j1; |
| 838 | |
| 839 | // find damaged area |
| 840 | x = rect.GetX(); |
| 841 | y = rect.GetY(); |
| 842 | w = rect.GetWidth(); |
| 843 | h = rect.GetHeight(); |
| 844 | |
| 845 | i0 = XToCell(x); |
| 846 | j0 = YToCell(y); |
| 847 | i1 = XToCell(x + w - 1); |
| 848 | j1 = YToCell(y + h - 1); |
| 849 | |
| 850 | size_t ncells; |
| 851 | LifeCell *cells; |
| 852 | |
| 853 | m_life->BeginFind(i0, j0, i1, j1, false); |
| 854 | bool done = m_life->FindMore(&cells, &ncells); |
| 855 | |
| 856 | // erase all damaged cells and draw the grid |
| 857 | dc.SetBrush(*wxWHITE_BRUSH); |
| 858 | |
| 859 | if (m_cellsize <= 2) |
| 860 | { |
| 861 | // no grid |
| 862 | dc.SetPen(*wxWHITE_PEN); |
| 863 | dc.DrawRectangle(x, y, w, h); |
| 864 | } |
| 865 | else |
| 866 | { |
| 867 | x = CellToX(i0); |
| 868 | y = CellToY(j0); |
| 869 | w = CellToX(i1 + 1) - x + 1; |
| 870 | h = CellToY(j1 + 1) - y + 1; |
| 871 | |
| 872 | dc.SetPen(*wxLIGHT_GREY_PEN); |
| 873 | for (wxInt32 yy = y; yy <= (y + h - m_cellsize); yy += m_cellsize) |
| 874 | dc.DrawRectangle(x, yy, w, m_cellsize + 1); |
| 875 | for (wxInt32 xx = x; xx <= (x + w - m_cellsize); xx += m_cellsize) |
| 876 | dc.DrawLine(xx, y, xx, y + h); |
| 877 | } |
| 878 | |
| 879 | // draw all alive cells |
| 880 | dc.SetPen(*wxBLACK_PEN); |
| 881 | dc.SetBrush(*wxBLACK_BRUSH); |
| 882 | |
| 883 | while (!done) |
| 884 | { |
| 885 | for (size_t m = 0; m < ncells; m++) |
| 886 | DrawCell(cells[m].i, cells[m].j, dc); |
| 887 | |
| 888 | done = m_life->FindMore(&cells, &ncells); |
| 889 | } |
| 890 | |
| 891 | // last set |
| 892 | for (size_t m = 0; m < ncells; m++) |
| 893 | DrawCell(cells[m].i, cells[m].j, dc); |
| 894 | } |
| 895 | |
| 896 | void LifeCanvas::OnMouse(wxMouseEvent& event) |
| 897 | { |
| 898 | if (!m_interactive) |
| 899 | return; |
| 900 | |
| 901 | // which cell are we pointing at? |
| 902 | wxInt32 i = XToCell( event.GetX() ); |
| 903 | wxInt32 j = YToCell( event.GetY() ); |
| 904 | |
| 905 | #if wxUSE_STATUSBAR |
| 906 | // set statusbar text |
| 907 | wxString msg; |
| 908 | msg.Printf(_("Cell: (%d, %d)"), i, j); |
| 909 | ((LifeFrame *) wxGetApp().GetTopWindow())->SetStatusText(msg, 1); |
| 910 | #endif // wxUSE_STATUSBAR |
| 911 | |
| 912 | // NOTE that wxMouseEvent::LeftDown() and wxMouseEvent::LeftIsDown() |
| 913 | // have different semantics. The first one is used to signal that the |
| 914 | // button was just pressed (i.e., in "button down" events); the second |
| 915 | // one just describes the current status of the button, independently |
| 916 | // of the mouse event type. LeftIsDown is typically used in "mouse |
| 917 | // move" events, to test if the button is _still_ pressed. |
| 918 | |
| 919 | // is the button down? |
| 920 | if (!event.LeftIsDown()) |
| 921 | { |
| 922 | m_status = MOUSE_NOACTION; |
| 923 | return; |
| 924 | } |
| 925 | |
| 926 | // was it pressed just now? |
| 927 | if (event.LeftDown()) |
| 928 | { |
| 929 | // yes: start a new action and toggle this cell |
| 930 | m_status = (m_life->IsAlive(i, j)? MOUSE_ERASING : MOUSE_DRAWING); |
| 931 | |
| 932 | m_mi = i; |
| 933 | m_mj = j; |
| 934 | m_life->SetCell(i, j, m_status == MOUSE_DRAWING); |
| 935 | DrawCell(i, j, m_status == MOUSE_DRAWING); |
| 936 | } |
| 937 | else if ((m_mi != i) || (m_mj != j)) |
| 938 | { |
| 939 | // no: continue ongoing action |
| 940 | bool alive = (m_status == MOUSE_DRAWING); |
| 941 | |
| 942 | // prepare DC and pen + brush to optimize drawing |
| 943 | wxClientDC dc(this); |
| 944 | dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN); |
| 945 | dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH); |
| 946 | |
| 947 | // draw a line of cells using Bresenham's algorithm |
| 948 | wxInt32 d, ii, jj, di, ai, si, dj, aj, sj; |
| 949 | di = i - m_mi; |
| 950 | ai = abs(di) << 1; |
| 951 | si = (di < 0)? -1 : 1; |
| 952 | dj = j - m_mj; |
| 953 | aj = abs(dj) << 1; |
| 954 | sj = (dj < 0)? -1 : 1; |
| 955 | |
| 956 | ii = m_mi; |
| 957 | jj = m_mj; |
| 958 | |
| 959 | if (ai > aj) |
| 960 | { |
| 961 | // iterate over i |
| 962 | d = aj - (ai >> 1); |
| 963 | |
| 964 | while (ii != i) |
| 965 | { |
| 966 | m_life->SetCell(ii, jj, alive); |
| 967 | DrawCell(ii, jj, dc); |
| 968 | if (d >= 0) |
| 969 | { |
| 970 | jj += sj; |
| 971 | d -= ai; |
| 972 | } |
| 973 | ii += si; |
| 974 | d += aj; |
| 975 | } |
| 976 | } |
| 977 | else |
| 978 | { |
| 979 | // iterate over j |
| 980 | d = ai - (aj >> 1); |
| 981 | |
| 982 | while (jj != j) |
| 983 | { |
| 984 | m_life->SetCell(ii, jj, alive); |
| 985 | DrawCell(ii, jj, dc); |
| 986 | if (d >= 0) |
| 987 | { |
| 988 | ii += si; |
| 989 | d -= aj; |
| 990 | } |
| 991 | jj += sj; |
| 992 | d += ai; |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | // last cell |
| 997 | m_life->SetCell(ii, jj, alive); |
| 998 | DrawCell(ii, jj, dc); |
| 999 | m_mi = ii; |
| 1000 | m_mj = jj; |
| 1001 | } |
| 1002 | |
| 1003 | ((LifeFrame *) wxGetApp().GetTopWindow())->UpdateInfoText(); |
| 1004 | } |
| 1005 | |
| 1006 | void LifeCanvas::OnSize(wxSizeEvent& event) |
| 1007 | { |
| 1008 | // find center |
| 1009 | wxInt32 cx = m_viewportX + m_viewportW / 2; |
| 1010 | wxInt32 cy = m_viewportY + m_viewportH / 2; |
| 1011 | |
| 1012 | // get new size |
| 1013 | wxCoord w = event.GetSize().GetX(); |
| 1014 | wxCoord h = event.GetSize().GetY(); |
| 1015 | m_viewportW = (w + m_cellsize - 1) / m_cellsize; |
| 1016 | m_viewportH = (h + m_cellsize - 1) / m_cellsize; |
| 1017 | |
| 1018 | // recenter |
| 1019 | m_viewportX = cx - m_viewportW / 2; |
| 1020 | m_viewportY = cy - m_viewportH / 2; |
| 1021 | |
| 1022 | // scrollbars |
| 1023 | if (m_interactive) |
| 1024 | { |
| 1025 | SetScrollbar(wxHORIZONTAL, m_viewportW, m_viewportW, 3 * m_viewportW); |
| 1026 | SetScrollbar(wxVERTICAL, m_viewportH, m_viewportH, 3 * m_viewportH); |
| 1027 | m_thumbX = m_viewportW; |
| 1028 | m_thumbY = m_viewportH; |
| 1029 | } |
| 1030 | |
| 1031 | // allow default processing |
| 1032 | event.Skip(); |
| 1033 | } |
| 1034 | |
| 1035 | void LifeCanvas::OnScroll(wxScrollWinEvent& event) |
| 1036 | { |
| 1037 | WXTYPE type = (WXTYPE)event.GetEventType(); |
| 1038 | int pos = event.GetPosition(); |
| 1039 | int orient = event.GetOrientation(); |
| 1040 | |
| 1041 | // calculate scroll increment |
| 1042 | int scrollinc = 0; |
| 1043 | if (type == wxEVT_SCROLLWIN_TOP) |
| 1044 | { |
| 1045 | if (orient == wxHORIZONTAL) |
| 1046 | scrollinc = -m_viewportW; |
| 1047 | else |
| 1048 | scrollinc = -m_viewportH; |
| 1049 | } |
| 1050 | else |
| 1051 | if (type == wxEVT_SCROLLWIN_BOTTOM) |
| 1052 | { |
| 1053 | if (orient == wxHORIZONTAL) |
| 1054 | scrollinc = m_viewportW; |
| 1055 | else |
| 1056 | scrollinc = m_viewportH; |
| 1057 | } |
| 1058 | else |
| 1059 | if (type == wxEVT_SCROLLWIN_LINEUP) |
| 1060 | { |
| 1061 | scrollinc = -1; |
| 1062 | } |
| 1063 | else |
| 1064 | if (type == wxEVT_SCROLLWIN_LINEDOWN) |
| 1065 | { |
| 1066 | scrollinc = +1; |
| 1067 | } |
| 1068 | else |
| 1069 | if (type == wxEVT_SCROLLWIN_PAGEUP) |
| 1070 | { |
| 1071 | scrollinc = -10; |
| 1072 | } |
| 1073 | else |
| 1074 | if (type == wxEVT_SCROLLWIN_PAGEDOWN) |
| 1075 | { |
| 1076 | scrollinc = +10; |
| 1077 | } |
| 1078 | else |
| 1079 | if (type == wxEVT_SCROLLWIN_THUMBTRACK) |
| 1080 | { |
| 1081 | if (orient == wxHORIZONTAL) |
| 1082 | { |
| 1083 | scrollinc = pos - m_thumbX; |
| 1084 | m_thumbX = pos; |
| 1085 | } |
| 1086 | else |
| 1087 | { |
| 1088 | scrollinc = pos - m_thumbY; |
| 1089 | m_thumbY = pos; |
| 1090 | } |
| 1091 | } |
| 1092 | else |
| 1093 | if (type == wxEVT_SCROLLWIN_THUMBRELEASE) |
| 1094 | { |
| 1095 | m_thumbX = m_viewportW; |
| 1096 | m_thumbY = m_viewportH; |
| 1097 | } |
| 1098 | |
| 1099 | #if defined(__WXGTK__) || defined(__WXMOTIF__) |
| 1100 | // wxGTK and wxMotif update the thumb automatically (wxMSW doesn't); |
| 1101 | // so reset it back as we always want it to be in the same position. |
| 1102 | if (type != wxEVT_SCROLLWIN_THUMBTRACK) |
| 1103 | { |
| 1104 | SetScrollbar(wxHORIZONTAL, m_viewportW, m_viewportW, 3 * m_viewportW); |
| 1105 | SetScrollbar(wxVERTICAL, m_viewportH, m_viewportH, 3 * m_viewportH); |
| 1106 | } |
| 1107 | #endif |
| 1108 | |
| 1109 | if (scrollinc == 0) return; |
| 1110 | |
| 1111 | // scroll the window and adjust the viewport |
| 1112 | if (orient == wxHORIZONTAL) |
| 1113 | { |
| 1114 | m_viewportX += scrollinc; |
| 1115 | ScrollWindow( -m_cellsize * scrollinc, 0, (const wxRect *) NULL); |
| 1116 | } |
| 1117 | else |
| 1118 | { |
| 1119 | m_viewportY += scrollinc; |
| 1120 | ScrollWindow( 0, -m_cellsize * scrollinc, (const wxRect *) NULL); |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | void LifeCanvas::OnEraseBackground(wxEraseEvent& WXUNUSED(event)) |
| 1125 | { |
| 1126 | // do nothing. I just don't want the background to be erased, you know. |
| 1127 | } |