utils/emulator/src/emulator.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        emulator.cpp
   3 // Purpose:     Emulator wxWidgets sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   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/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers (this file is usually all you
  28 // need because it includes almost all "standard" wxWidgets headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #include "wx/confbase.h"
  34 #include "wx/fileconf.h"
  35 #include "wx/cmdline.h"
  36 #include "wx/image.h"
  37 #include "wx/file.h"
  38 #include "wx/filename.h"
  39
  40 #ifdef __WXX11__
  41 #include "wx/x11/reparent.h"
  42 #endif
  43
  44 #include "emulator.h"
  45
  46 // ----------------------------------------------------------------------------
  47 // resources
  48 // ----------------------------------------------------------------------------
  49
  50 // the application icon (under Windows and OS/2 it is in resources)
  51 #ifndef wxHAS_IMAGES_IN_RESOURCES
  52     #include "emulator.xpm"
  53 #endif
  54
  55 // ----------------------------------------------------------------------------
  56 // event tables and other macros for wxWidgets
  57 // ----------------------------------------------------------------------------
  58
  59 // the event tables connect the wxWidgets events with the functions (event
  60 // handlers) which process them. It can be also done at run-time, but for the
  61 // simple menu events like this the static method is much simpler.
  62 BEGIN_EVENT_TABLE(wxEmulatorFrame, wxFrame)
  63     EVT_MENU(Emulator_Quit,  wxEmulatorFrame::OnQuit)
  64     EVT_MENU(Emulator_About, wxEmulatorFrame::OnAbout)
  65     EVT_CLOSE(wxEmulatorFrame::OnCloseWindow)
  66 END_EVENT_TABLE()
  67
  68 // Create a new application object: this macro will allow wxWidgets to create
  69 // the application object during program execution (it's better than using a
  70 // static object for many reasons) and also declares the accessor function
  71 // wxGetApp() which will return the reference of the right type (i.e. wxEmulatorApp and
  72 // not wxApp)
  73 IMPLEMENT_APP(wxEmulatorApp)
  74
  75 static const wxCmdLineEntryDesc sg_cmdLineDesc[] =
  76 {
  77     { wxCMD_LINE_OPTION, "u", "use-display", "display number to use (default 100)" },
  78
  79     { wxCMD_LINE_SWITCH, "h", "help", "displays help on the command line parameters" },
  80     { wxCMD_LINE_SWITCH, "v", "version", "print version" },
  81
  82     { wxCMD_LINE_PARAM,  NULL, NULL, "config file 1", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
  83
  84     wxCMD_LINE_DESC_END
  85 };
  86
  87
  88 // ============================================================================
  89 // implementation
  90 // ============================================================================
  91
  92 // ----------------------------------------------------------------------------
  93 // the application class
  94 // ----------------------------------------------------------------------------
  95
  96 wxEmulatorApp::wxEmulatorApp()
  97 {
  98     m_xnestWindow = NULL;
  99     m_containerWindow = NULL;
 100     m_displayNumber = wxT("100");
 101     m_xnestPID = 0;
 102
 103 }
 104
 105 // 'Main program' equivalent: the program execution "starts" here
 106 bool wxEmulatorApp::OnInit()
 107 {
 108 #if wxUSE_LOG
 109     wxLog::DisableTimestamp();
 110 #endif // wxUSE_LOG
 111     wxInitAllImageHandlers();
 112
 113     wxString currentDir = wxGetCwd();
 114
 115     // Use argv to get current app directory
 116     m_appDir = wxFindAppPath(argv[0], currentDir, wxT("WXEMUDIR"));
 117
 118     // If the development version, go up a directory.
 119 #ifdef __WXMSW__
 120     if ((m_appDir.Right(5).CmpNoCase(wxT("DEBUG")) == 0) ||
 121         (m_appDir.Right(11).CmpNoCase(wxT("DEBUGSTABLE")) == 0) ||
 122         (m_appDir.Right(7).CmpNoCase(wxT("RELEASE")) == 0) ||
 123         (m_appDir.Right(13).CmpNoCase(wxT("RELEASESTABLE")) == 0)
 124         )
 125         m_appDir = wxPathOnly(m_appDir);
 126 #endif
 127
 128     // Parse the command-line parameters and options
 129     wxCmdLineParser parser(sg_cmdLineDesc, argc, argv);
 130     int res;
 131     {
 132         wxLogNull log;
 133         res = parser.Parse();
 134     }
 135     if (res == -1 || res > 0 || parser.Found(wxT("h")))
 136     {
 137 #ifdef __X__
 138         wxLog::SetActiveTarget(new wxLogStderr);
 139 #endif
 140         parser.Usage();
 141         return false;
 142     }
 143     if (parser.Found(wxT("v")))
 144     {
 145 #ifdef __X__
 146         wxLog::SetActiveTarget(new wxLogStderr);
 147 #endif
 148         wxString msg;
 149         msg.Printf(wxT("wxWidgets PDA Emulator (c) Julian Smart, 2002 Version %.2f, %s"), wxEMULATOR_VERSION, __DATE__);
 150         wxLogMessage(msg);
 151         return false;
 152     }
 153     if (parser.Found(wxT("u"), & m_displayNumber))
 154     {
 155         // Should only be number, so strip out anything before
 156         // and including a : character
 157         if (m_displayNumber.Find(wxT(':')) != -1)
 158         {
 159             m_displayNumber = m_displayNumber.AfterFirst(wxT(':'));
 160         }
 161     }
 162     if (parser.GetParamCount() == 0)
 163     {
 164         m_emulatorInfo.m_emulatorFilename = wxT("default.wxe");
 165     }
 166     else if (parser.GetParamCount() > 0)
 167     {
 168         m_emulatorInfo.m_emulatorFilename = parser.GetParam(0);
 169     }
 170
 171     // Load the emulation info
 172     if (!LoadEmulator(m_appDir))
 173     {
 174         //wxMessageBox(wxT("Sorry, could not load this emulator. Please check bitmaps are valid."));
 175         return false;
 176     }
 177
 178     // create the main application window
 179     wxEmulatorFrame *frame = new wxEmulatorFrame(wxT("wxEmulator"),
 180                                  wxPoint(50, 50), wxSize(450, 340));
 181
 182 #if wxUSE_STATUSBAR
 183     frame->SetStatusText(m_emulatorInfo.m_emulatorTitle, 0);
 184
 185     wxString sizeStr;
 186     sizeStr.Printf(wxT("Screen: %dx%d"), (int) m_emulatorInfo.m_emulatorScreenSize.x,
 187             (int) m_emulatorInfo.m_emulatorScreenSize.y);
 188     frame->SetStatusText(sizeStr, 1);
 189 #endif // wxUSE_STATUSBAR
 190
 191     m_containerWindow = new wxEmulatorContainer(frame, wxID_ANY);
 192
 193     frame->SetClientSize(m_emulatorInfo.m_emulatorDeviceSize.x,
 194                          m_emulatorInfo.m_emulatorDeviceSize.y);
 195
 196     // and show it (the frames, unlike simple controls, are not shown when
 197     // created initially)
 198     frame->Show(true);
 199
 200 #ifdef __WXX11__
 201     m_xnestWindow = new wxAdoptedWindow;
 202
 203     wxString cmd;
 204     cmd.Printf(wxT("Xnest :%s -geometry %dx%d"),
 205         m_displayNumber.c_str(),
 206         (int) m_emulatorInfo.m_emulatorScreenSize.x,
 207         (int) m_emulatorInfo.m_emulatorScreenSize.y);
 208
 209     // Asynchronously executes Xnest
 210     m_xnestPID = wxExecute(cmd);
 211     if (0 == m_xnestPID)
 212     {
 213         frame->Destroy();
 214         wxMessageBox(wxT("Sorry, could not run Xnest. Please check your PATH."));
 215         return false;
 216     }
 217
 218     wxReparenter reparenter;
 219     if (!reparenter.WaitAndReparent(m_containerWindow, m_xnestWindow, wxT("Xnest")))
 220     {
 221         wxMessageBox(wxT("Sorry, could not reparent Xnest.."));
 222         frame->Destroy();
 223         return false;
 224     }
 225
 226 #endif
 227     m_containerWindow->DoResize();
 228
 229     // success: wxApp::OnRun() will be called which will enter the main message
 230     // loop and the application will run. If we returned false here, the
 231     // application would exit immediately.
 232     return true;
 233 }
 234
 235 // Prepend the current program directory to the name
 236 wxString wxEmulatorApp::GetFullAppPath(const wxString& filename) const
 237 {
 238     wxString path(m_appDir);
 239     if (path.Last() != '\\' && path.Last() != '/' && filename[0] != '\\' && filename[0] != '/')
 240 #ifdef __X__
 241         path += '/';
 242 #else
 243         path += '\\';
 244 #endif
 245     path += filename;
 246
 247     return path;
 248 }
 249
 250
 251 // Load the specified emulator.
 252 // For now, hard-wired. TODO: make this configurable
 253 bool wxEmulatorApp::LoadEmulator(const wxString& appDir)
 254 {
 255     // Load config file and bitmaps
 256     return m_emulatorInfo.Load(appDir);
 257 }
 258
 259 // ----------------------------------------------------------------------------
 260 // main frame
 261 // ----------------------------------------------------------------------------
 262
 263 // frame constructor
 264 wxEmulatorFrame::wxEmulatorFrame(const wxString& title,
 265     const wxPoint& pos, const wxSize& size)
 266     : wxFrame(NULL, wxID_ANY, title, pos, size)
 267 {
 268     // set the frame icon
 269     SetIcon(wxICON(emulator));
 270
 271 #if wxUSE_MENUS
 272     // create a menu bar
 273     wxMenu *menuFile = new wxMenu;
 274
 275     // the "About" item should be in the help menu
 276     wxMenu *helpMenu = new wxMenu;
 277     helpMenu->Append(Emulator_About, wxT("&About\tF1"), wxT("Show about dialog"));
 278
 279     menuFile->Append(Emulator_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
 280
 281     // now append the freshly created menu to the menu bar...
 282     wxMenuBar *menuBar = new wxMenuBar();
 283     menuBar->Append(menuFile, wxT("&File"));
 284     menuBar->Append(helpMenu, wxT("&Help"));
 285
 286     // ... and attach this menu bar to the frame
 287     SetMenuBar(menuBar);
 288 #endif // wxUSE_MENUS
 289
 290 #if wxUSE_STATUSBAR
 291     // create a status bar just for fun (by default with 1 pane only)
 292     CreateStatusBar(2);
 293 #endif // wxUSE_STATUSBAR
 294 }
 295
 296
 297 // event handlers
 298
 299 void wxEmulatorFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 300 {
 301     // true is to force the frame to close
 302     Close(true);
 303 }
 304
 305 void wxEmulatorFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 306 {
 307     wxString msg;
 308     msg.Printf( wxT("wxEmulator is an environment for testing embedded X11 apps.\n"));
 309
 310     wxMessageBox(msg, wxT("About wxEmulator"), wxOK | wxICON_INFORMATION, this);
 311 }
 312
 313 void wxEmulatorFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 314 {
 315 #ifdef __WXX11__
 316     if (wxGetApp().m_xnestWindow)
 317     {
 318         wxGetApp().m_xnestWindow->SetHandle((WXWindow) NULL);
 319     }
 320 #endif
 321     this->Destroy();
 322     if (wxGetApp().m_xnestPID > 0)
 323     {
 324         wxKill(wxGetApp().m_xnestPID);
 325         wxGetApp().m_xnestPID = 0;
 326     }
 327 }
 328
 329 IMPLEMENT_CLASS(wxEmulatorContainer, wxWindow)
 330
 331 BEGIN_EVENT_TABLE(wxEmulatorContainer, wxWindow)
 332     EVT_SIZE(wxEmulatorContainer::OnSize)
 333     EVT_PAINT(wxEmulatorContainer::OnPaint)
 334     EVT_ERASE_BACKGROUND(wxEmulatorContainer::OnEraseBackground)
 335 END_EVENT_TABLE()
 336
 337 wxEmulatorContainer::wxEmulatorContainer(wxWindow* parent, wxWindowID id):
 338     wxWindow(parent, id, wxDefaultPosition, wxDefaultSize)
 339 {
 340 }
 341
 342 void wxEmulatorContainer::OnSize(wxSizeEvent& WXUNUSED(event))
 343 {
 344     DoResize();
 345 }
 346
 347 void wxEmulatorContainer::DoResize()
 348 {
 349     wxSize sz = GetClientSize();
 350     if (wxGetApp().m_xnestWindow
 351 #ifdef __WXX11__
 352         && wxGetApp().m_xnestWindow->X11GetMainWindow()
 353 #endif
 354         )
 355     {
 356         int deviceWidth = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.x;
 357         int deviceHeight = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.y;
 358
 359         int x = wxMax(0, (int) ((sz.x - deviceWidth)/2.0));
 360         int y = wxMax(0, (int) ((sz.y - deviceHeight)/2.0));
 361
 362         x += wxGetApp().m_emulatorInfo.m_emulatorScreenPosition.x;
 363         y += wxGetApp().m_emulatorInfo.m_emulatorScreenPosition.y;
 364
 365         wxGetApp().m_xnestWindow->Move(x, y);
 366     }
 367     Refresh();
 368 }
 369
 370 void wxEmulatorContainer::OnPaint(wxPaintEvent& WXUNUSED(event))
 371 {
 372     wxPaintDC dc(this);
 373
 374     wxSize sz = GetClientSize();
 375     if (wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.IsOk())
 376     {
 377         int deviceWidth = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.x;
 378         int deviceHeight = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.y;
 379
 380         int x = wxMax(0, (int) ((sz.x - deviceWidth)/2.0));
 381         int y = wxMax(0, (int) ((sz.y - deviceHeight)/2.0));
 382
 383         dc.DrawBitmap(wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap, x, y);
 384     }
 385 }
 386
 387 void wxEmulatorContainer::OnEraseBackground(wxEraseEvent& event)
 388 {
 389     wxDC* dc wxDUMMY_INITIALIZE(NULL);
 390
 391     if (event.GetDC())
 392     {
 393         dc = event.GetDC();
 394     }
 395     else
 396     {
 397         dc = new wxClientDC(this);
 398     }
 399
 400     dc->SetBackground(wxBrush(wxGetApp().m_emulatorInfo.m_emulatorBackgroundColour, wxSOLID));
 401     dc->Clear();
 402
 403     if (!event.GetDC())
 404         delete dc;
 405 }
 406
 407 // Information about the emulator decorations
 408
 409 void wxEmulatorInfo::Copy(const wxEmulatorInfo& info)
 410 {
 411     m_emulatorFilename = info.m_emulatorFilename;
 412     m_emulatorTitle = info.m_emulatorTitle;
 413     m_emulatorDescription = info.m_emulatorDescription;
 414     m_emulatorScreenPosition = info.m_emulatorScreenPosition;
 415     m_emulatorScreenSize = info.m_emulatorScreenSize;
 416     m_emulatorBackgroundBitmap = info.m_emulatorBackgroundBitmap;
 417     m_emulatorBackgroundBitmapName = info.m_emulatorBackgroundBitmapName;
 418     m_emulatorBackgroundColour = info.m_emulatorBackgroundColour;
 419     m_emulatorDeviceSize = info.m_emulatorDeviceSize;
 420 }
 421
 422 // Initialisation
 423 void wxEmulatorInfo::Init()
 424 {
 425     m_emulatorDeviceSize = wxSize(260, 340);
 426     m_emulatorScreenSize = wxSize(240, 320);
 427 }
 428
 429 // Loads bitmaps
 430 bool wxEmulatorInfo::Load(const wxString& appDir)
 431 {
 432     // Try to find absolute path
 433     wxString absoluteConfigPath = m_emulatorFilename;
 434     if ( !::wxIsAbsolutePath(absoluteConfigPath) )
 435     {
 436         wxString currDir = wxGetCwd();
 437         absoluteConfigPath = currDir + wxString(wxFILE_SEP_PATH) + m_emulatorFilename;
 438         if ( !wxFile::Exists(absoluteConfigPath) )
 439         {
 440             absoluteConfigPath = appDir + wxString(wxFILE_SEP_PATH)
 441                 + m_emulatorFilename;
 442         }
 443     }
 444
 445     if ( !wxFile::Exists(absoluteConfigPath) )
 446     {
 447         wxString str;
 448         str.Printf( wxT("Could not find config file %s"),
 449             absoluteConfigPath.c_str() );
 450
 451         wxMessageBox(str);
 452         return false;
 453     }
 454
 455     wxString rootPath = wxPathOnly(absoluteConfigPath);
 456
 457     {
 458         wxFileConfig config(wxT("wxEmulator"), wxT("wxWidgets"),
 459             absoluteConfigPath, wxEmptyString, wxCONFIG_USE_LOCAL_FILE);
 460
 461         config.Read(wxT("/General/title"), & m_emulatorTitle);
 462         config.Read(wxT("/General/description"), & m_emulatorDescription);
 463         config.Read(wxT("/General/backgroundBitmap"), & m_emulatorBackgroundBitmapName);
 464
 465         wxString colString;
 466         if (config.Read(wxT("/General/backgroundColour"), & colString) ||
 467             config.Read(wxT("/General/backgroundColor"), & colString)
 468            )
 469         {
 470             m_emulatorBackgroundColour = wxHexStringToColour(colString);
 471         }
 472
 473         int x = 0, y = 0, w = 0, h = 0, dw = 0, dh = 0;
 474         config.Read(wxT("/General/screenX"), & x);
 475         config.Read(wxT("/General/screenY"), & y);
 476         config.Read(wxT("/General/screenWidth"), & w);
 477         config.Read(wxT("/General/screenHeight"), & h);
 478         if (config.Read(wxT("/General/deviceWidth"), & dw) && config.Read(wxT("/General/deviceHeight"), & dh))
 479         {
 480             m_emulatorDeviceSize = wxSize(dw, dh);
 481         }
 482
 483         m_emulatorScreenPosition = wxPoint(x, y);
 484         m_emulatorScreenSize = wxSize(w, h);
 485     }
 486
 487     if (!m_emulatorBackgroundBitmapName.empty())
 488     {
 489         wxString absoluteBackgroundBitmapName = rootPath + wxString(wxFILE_SEP_PATH) + m_emulatorBackgroundBitmapName;
 490         if ( !wxFile::Exists(absoluteBackgroundBitmapName) )
 491         {
 492             wxString str;
 493             str.Printf( wxT("Could not find bitmap %s"),
 494                 absoluteBackgroundBitmapName.c_str() );
 495             wxMessageBox(str);
 496             return false;
 497         }
 498
 499         wxBitmapType type = wxDetermineImageType(m_emulatorBackgroundBitmapName);
 500         if (type == wxBITMAP_TYPE_INVALID)
 501             return false;
 502
 503         if (!m_emulatorBackgroundBitmap.LoadFile(m_emulatorBackgroundBitmapName, type))
 504         {
 505             wxString str;
 506             str.Printf( wxT("Could not load bitmap file %s"),
 507                 m_emulatorBackgroundBitmapName.c_str() );
 508             wxMessageBox(str);
 509             return false;
 510         }
 511
 512         m_emulatorDeviceSize = wxSize(m_emulatorBackgroundBitmap.GetWidth(),
 513             m_emulatorBackgroundBitmap.GetHeight());
 514     }
 515     return true;
 516 }
 517
 518 // Returns the image type, or -1, determined from the extension.
 519 wxBitmapType wxDetermineImageType(const wxString& filename)
 520 {
 521     wxString path, name, ext;
 522
 523     wxFileName::SplitPath(filename, & path, & name, & ext);
 524
 525     ext.MakeLower();
 526     if (ext == wxT("jpg") || ext == wxT("jpeg"))
 527         return wxBITMAP_TYPE_JPEG;
 528     if (ext == wxT("gif"))
 529         return wxBITMAP_TYPE_GIF;
 530     if (ext == wxT("bmp"))
 531         return wxBITMAP_TYPE_BMP;
 532     if (ext == wxT("png"))
 533         return wxBITMAP_TYPE_PNG;
 534     if (ext == wxT("pcx"))
 535         return wxBITMAP_TYPE_PCX;
 536     if (ext == wxT("tif") || ext == wxT("tiff"))
 537         return wxBITMAP_TYPE_TIFF;
 538
 539     return wxBITMAP_TYPE_INVALID;
 540 }
 541
 542 // Convert a colour to a 6-digit hex string
 543 wxString wxColourToHexString(const wxColour& col)
 544 {
 545     wxString hex;
 546
 547     hex += wxDecToHex(col.Red());
 548     hex += wxDecToHex(col.Green());
 549     hex += wxDecToHex(col.Blue());
 550
 551     return hex;
 552 }
 553
 554 // Convert 6-digit hex string to a colour
 555 wxColour wxHexStringToColour(const wxString& hex)
 556 {
 557     unsigned char r = (unsigned char)wxHexToDec(hex.Mid(0, 2));
 558     unsigned char g = (unsigned char)wxHexToDec(hex.Mid(2, 2));
 559     unsigned char b = (unsigned char)wxHexToDec(hex.Mid(4, 2));
 560
 561     return wxColour(r, g, b);
 562 }
 563
 564 // Find the absolute path where this application has been run from.
 565 // argv0 is wxTheApp->argv[0]
 566 // cwd is the current working directory (at startup)
 567 // appVariableName is the name of a variable containing the directory for this app, e.g.
 568 // MYAPPDIR. This is checked first.
 569
 570 wxString wxFindAppPath(const wxString& argv0, const wxString& cwd, const wxString& appVariableName)
 571 {
 572     wxString str;
 573
 574     // Try appVariableName
 575     if (!appVariableName.empty())
 576     {
 577         str = wxGetenv(appVariableName);
 578         if (!str.empty())
 579             return str;
 580     }
 581
 582     if (wxIsAbsolutePath(argv0))
 583         return wxPathOnly(argv0);
 584     else
 585     {
 586         // Is it a relative path?
 587         wxString currentDir(cwd);
 588         if (!wxEndsWithPathSeparator(currentDir))
 589             currentDir += wxFILE_SEP_PATH;
 590
 591         str = currentDir + argv0;
 592         if ( wxFile::Exists(str) )
 593             return wxPathOnly(str);
 594     }
 595
 596     // OK, it's neither an absolute path nor a relative path.
 597     // Search PATH.
 598
 599     wxPathList pathList;
 600     pathList.AddEnvList(wxT("PATH"));
 601     str = pathList.FindAbsoluteValidPath(argv0);
 602     if (!str.empty())
 603         return wxPathOnly(str);
 604
 605     // Failed
 606     return wxEmptyString;
 607 }
 608