X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3373d6bfafe9f537f30865de9d02a55b91bc848f..961f4d0ce6fb0478c2850d2da37e072d8636639a:/utils/emulator/src/emulator.cpp

diff --git a/utils/emulator/src/emulator.cpp b/utils/emulator/src/emulator.cpp
index 2740f75923..1c05b55bdc 100644
--- a/utils/emulator/src/emulator.cpp
+++ b/utils/emulator/src/emulator.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        emulator.cpp
-// Purpose:     Emulator wxWindows sample
+// Purpose:     Emulator wxWidgets sample
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
@@ -13,10 +13,6 @@
 // declarations
 // ============================================================================
 
-#ifdef __GNUG__
-    #pragma implementation "emulator.h"
-#endif
-
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
@@ -29,45 +25,66 @@
 #endif
 
 // for all others, include the necessary headers (this file is usually all you
-// need because it includes almost all "standard" wxWindows headers)
+// need because it includes almost all "standard" wxWidgets headers)
 #ifndef WX_PRECOMP
     #include "wx/wx.h"
 #endif
 
-#include "emulator.h"
+#include "wx/confbase.h"
+#include "wx/fileconf.h"
+#include "wx/cmdline.h"
+#include "wx/image.h"
+#include "wx/file.h"
+#include "wx/filename.h"
 
-#ifdef __WXX11__    
+#ifdef __WXX11__
 #include "wx/x11/reparent.h"
 #endif
 
+#include "emulator.h"
+
 // ----------------------------------------------------------------------------
 // resources
 // ----------------------------------------------------------------------------
 
 // the application icon (under Windows and OS/2 it is in resources)
 #if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
-    #include "mondrian.xpm"
+    #include "emulator.xpm"
 #endif
 
 // ----------------------------------------------------------------------------
-// event tables and other macros for wxWindows
+// event tables and other macros for wxWidgets
 // ----------------------------------------------------------------------------
 
-// the event tables connect the wxWindows events with the functions (event
+// the event tables connect the wxWidgets events with the functions (event
 // handlers) which process them. It can be also done at run-time, but for the
 // simple menu events like this the static method is much simpler.
 BEGIN_EVENT_TABLE(wxEmulatorFrame, wxFrame)
     EVT_MENU(Emulator_Quit,  wxEmulatorFrame::OnQuit)
     EVT_MENU(Emulator_About, wxEmulatorFrame::OnAbout)
+    EVT_CLOSE(wxEmulatorFrame::OnCloseWindow)
 END_EVENT_TABLE()
 
-// Create a new application object: this macro will allow wxWindows to create
+// Create a new application object: this macro will allow wxWidgets to create
 // the application object during program execution (it's better than using a
 // static object for many reasons) and also declares the accessor function
 // wxGetApp() which will return the reference of the right type (i.e. wxEmulatorApp and
 // not wxApp)
 IMPLEMENT_APP(wxEmulatorApp)
 
+static const wxCmdLineEntryDesc sg_cmdLineDesc[] =
+{
+    { wxCMD_LINE_OPTION, "u", "use-display", "display number to use (default 100)" },
+
+    { wxCMD_LINE_SWITCH, "h", "help", "displays help on the command line parameters" },
+    { wxCMD_LINE_SWITCH, "v", "version", "print version" },
+
+    { wxCMD_LINE_PARAM,  NULL, NULL, "config file 1", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
+
+    wxCMD_LINE_DESC_END
+};
+
+
 // ============================================================================
 // implementation
 // ============================================================================
@@ -80,86 +97,163 @@ wxEmulatorApp::wxEmulatorApp()
 {
     m_xnestWindow = NULL;
     m_containerWindow = NULL;
+    m_displayNumber = wxT("100");
+    m_xnestPID = 0;
+
 }
 
 // 'Main program' equivalent: the program execution "starts" here
 bool wxEmulatorApp::OnInit()
 {
+#if wxUSE_LOG
+    wxLog::DisableTimestamp();
+#endif // wxUSE_LOG
     wxInitAllImageHandlers();
 
-    // create the main application window
-    wxEmulatorFrame *frame = new wxEmulatorFrame(_T("wxEmulator"),
-                                 wxPoint(50, 50), wxSize(450, 340));
-                                
-    m_containerWindow = new wxEmulatorContainer(frame, -1);
+    wxString currentDir = wxGetCwd();
+
+    // Use argv to get current app directory
+    m_appDir = wxFindAppPath(argv[0], currentDir, wxT("WXEMUDIR"));
+
+    // If the development version, go up a directory.
+#ifdef __WXMSW__
+    if ((m_appDir.Right(5).CmpNoCase(wxT("DEBUG")) == 0) ||
+        (m_appDir.Right(11).CmpNoCase(wxT("DEBUGSTABLE")) == 0) ||
+        (m_appDir.Right(7).CmpNoCase(wxT("RELEASE")) == 0) ||
+        (m_appDir.Right(13).CmpNoCase(wxT("RELEASESTABLE")) == 0)
+        )
+        m_appDir = wxPathOnly(m_appDir);
+#endif
+
+    // Parse the command-line parameters and options
+    wxCmdLineParser parser(sg_cmdLineDesc, argc, argv);
+    int res;
+    {
+        wxLogNull log;
+        res = parser.Parse();
+    }
+    if (res == -1 || res > 0 || parser.Found(wxT("h")))
+    {
+#ifdef __X__
+        wxLog::SetActiveTarget(new wxLogStderr);
+#endif
+        parser.Usage();
+        return false;
+    }
+    if (parser.Found(wxT("v")))
+    {
+#ifdef __X__
+        wxLog::SetActiveTarget(new wxLogStderr);
+#endif
+        wxString msg;
+        msg.Printf(wxT("wxWidgets PDA Emulator (c) Julian Smart, 2002 Version %.2f, %s"), wxEMULATOR_VERSION, __DATE__);
+        wxLogMessage(msg);
+        return false;
+    }
+    if (parser.Found(wxT("u"), & m_displayNumber))
+    {
+        // Should only be number, so strip out anything before
+        // and including a : character
+        if (m_displayNumber.Find(wxT(':')) != -1)
+        {
+            m_displayNumber = m_displayNumber.AfterFirst(wxT(':'));
+        }
+    }
+    if (parser.GetParamCount() == 0)
+    {
+        m_emulatorInfo.m_emulatorFilename = wxT("default.wxe");
+    }
+    else if (parser.GetParamCount() > 0)
+    {
+        m_emulatorInfo.m_emulatorFilename = parser.GetParam(0);
+    }
 
     // Load the emulation info
-    if (!LoadEmulator())
+    if (!LoadEmulator(m_appDir))
     {
-        frame->Destroy();
-        wxMessageBox(wxT("Sorry, could not load this emulator. Please check bitmaps are valid."));
-        return FALSE;        
+        //wxMessageBox(wxT("Sorry, could not load this emulator. Please check bitmaps are valid."));
+        return false;
     }
-    
-    if (m_emulatorInfo.m_emulatorBackgroundBitmap.Ok())
-        frame->SetClientSize(m_emulatorInfo.m_emulatorBackgroundBitmap.GetWidth(),
-                             m_emulatorInfo.m_emulatorBackgroundBitmap.GetHeight());
-    
+
+    // create the main application window
+    wxEmulatorFrame *frame = new wxEmulatorFrame(wxT("wxEmulator"),
+                                 wxPoint(50, 50), wxSize(450, 340));
+
+#if wxUSE_STATUSBAR
+    frame->SetStatusText(m_emulatorInfo.m_emulatorTitle, 0);
+
+    wxString sizeStr;
+    sizeStr.Printf(wxT("Screen: %dx%d"), (int) m_emulatorInfo.m_emulatorScreenSize.x,
+            (int) m_emulatorInfo.m_emulatorScreenSize.y);
+    frame->SetStatusText(sizeStr, 1);
+#endif // wxUSE_STATUSBAR
+
+    m_containerWindow = new wxEmulatorContainer(frame, wxID_ANY);
+
+    frame->SetClientSize(m_emulatorInfo.m_emulatorDeviceSize.x,
+                         m_emulatorInfo.m_emulatorDeviceSize.y);
+
     // and show it (the frames, unlike simple controls, are not shown when
     // created initially)
-    frame->Show(TRUE);
-    
-#ifdef __WXX11__    
+    frame->Show(true);
+
+#ifdef __WXX11__
     m_xnestWindow = new wxAdoptedWindow;
 
     wxString cmd;
-    cmd.Printf(wxT("Xnest :100 -geometry %dx%d+50+50"),
-        (int) m_emulatorScreenSize.x, (int) m_emulatorScreenSize.y);
-
-    // Asynchronously executes Xnest    
-    if (0 == wxExecute(cmd))
+    cmd.Printf(wxT("Xnest :%s -geometry %dx%d"),
+        m_displayNumber.c_str(),
+        (int) m_emulatorInfo.m_emulatorScreenSize.x,
+        (int) m_emulatorInfo.m_emulatorScreenSize.y);
+
+    // Asynchronously executes Xnest
+    m_xnestPID = wxExecute(cmd);
+    if (0 == m_xnestPID)
     {
         frame->Destroy();
         wxMessageBox(wxT("Sorry, could not run Xnest. Please check your PATH."));
-        return FALSE;
+        return false;
     }
-    
+
     wxReparenter reparenter;
     if (!reparenter.WaitAndReparent(m_containerWindow, m_xnestWindow, wxT("Xnest")))
     {
         wxMessageBox(wxT("Sorry, could not reparent Xnest.."));
         frame->Destroy();
-        return FALSE;
+        return false;
     }
+
 #endif
+    m_containerWindow->DoResize();
 
     // success: wxApp::OnRun() will be called which will enter the main message
-    // loop and the application will run. If we returned FALSE here, the
+    // loop and the application will run. If we returned false here, the
     // application would exit immediately.
-    return TRUE;
+    return true;
 }
 
-// Load the specified emulator.
-// For now, hard-wired. TODO: make this configurable
-bool wxEmulatorApp::LoadEmulator()
+// Prepend the current program directory to the name
+wxString wxEmulatorApp::GetFullAppPath(const wxString& filename) const
 {
-    m_emulatorInfo.m_emulatorTitle = wxT("iPAQ Emulator");
-
-    m_emulatorInfo.m_emulatorDescription = wxT("No description yet");
-
-    // The offset from the top-left of the main emulator
-    // bitmap and the virtual screen (where Xnest is
-    // positioned)
-    m_emulatorInfo.m_emulatorScreenPosition = wxPoint(45, 57);
+    wxString path(m_appDir);
+    if (path.Last() != '\\' && path.Last() != '/' && filename[0] != '\\' && filename[0] != '/')
+#ifdef __X__
+        path += '/';
+#else
+        path += '\\';
+#endif
+    path += filename;
 
-    // The emulated screen size
-    m_emulatorInfo.m_emulatorScreenSize = wxSize(240, 320);
+    return path;
+}
 
-    m_emulatorInfo.m_emulatorBackgroundBitmapName = wxT("ipaq01.jpg");
 
-    m_emulatorInfo.m_emulatorBackgroundColour = * wxBLACK;
-    
-    return m_emulatorInfo.Load();
+// Load the specified emulator.
+// For now, hard-wired. TODO: make this configurable
+bool wxEmulatorApp::LoadEmulator(const wxString& appDir)
+{
+    // Load config file and bitmaps
+    return m_emulatorInfo.Load(appDir);
 }
 
 // ----------------------------------------------------------------------------
@@ -167,11 +261,12 @@ bool wxEmulatorApp::LoadEmulator()
 // ----------------------------------------------------------------------------
 
 // frame constructor
-wxEmulatorFrame::wxEmulatorFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
-       : wxFrame(NULL, -1, title, pos, size)
+wxEmulatorFrame::wxEmulatorFrame(const wxString& title,
+    const wxPoint& pos, const wxSize& size)
+    : wxFrame(NULL, wxID_ANY, title, pos, size)
 {
     // set the frame icon
-    SetIcon(wxICON(mondrian));
+    SetIcon(wxICON(emulator));
 
 #if wxUSE_MENUS
     // create a menu bar
@@ -179,14 +274,14 @@ wxEmulatorFrame::wxEmulatorFrame(const wxString& title, const wxPoint& pos, cons
 
     // the "About" item should be in the help menu
     wxMenu *helpMenu = new wxMenu;
-    helpMenu->Append(Emulator_About, _T("&About...\tF1"), _T("Show about dialog"));
+    helpMenu->Append(Emulator_About, wxT("&About...\tF1"), wxT("Show about dialog"));
 
-    menuFile->Append(Emulator_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
+    menuFile->Append(Emulator_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar();
-    menuBar->Append(menuFile, _T("&File"));
-    menuBar->Append(helpMenu, _T("&Help"));
+    menuBar->Append(menuFile, wxT("&File"));
+    menuBar->Append(helpMenu, wxT("&Help"));
 
     // ... and attach this menu bar to the frame
     SetMenuBar(menuBar);
@@ -195,7 +290,6 @@ wxEmulatorFrame::wxEmulatorFrame(const wxString& title, const wxPoint& pos, cons
 #if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)
     CreateStatusBar(2);
-    SetStatusText(_T("Welcome to wxWindows!"));
 #endif // wxUSE_STATUSBAR
 }
 
@@ -204,16 +298,32 @@ wxEmulatorFrame::wxEmulatorFrame(const wxString& title, const wxPoint& pos, cons
 
 void wxEmulatorFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {
-    // TRUE is to force the frame to close
-    Close(TRUE);
+    // true is to force the frame to close
+    Close(true);
 }
 
 void wxEmulatorFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
     wxString msg;
-    msg.Printf( _T("wxEmulator is an environment for testing embedded X11 apps.\n"));
+    msg.Printf( wxT("wxEmulator is an environment for testing embedded X11 apps.\n"));
+
+    wxMessageBox(msg, wxT("About wxEmulator"), wxOK | wxICON_INFORMATION, this);
+}
 
-    wxMessageBox(msg, _T("About wxEmulator"), wxOK | wxICON_INFORMATION, this);
+void wxEmulatorFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
+{
+#ifdef __WXX11__
+    if (wxGetApp().m_xnestWindow)
+    {
+        wxGetApp().m_xnestWindow->SetHandle((WXWindow) NULL);
+    }
+#endif
+    this->Destroy();
+    if (wxGetApp().m_xnestPID > 0)
+    {
+        wxKill(wxGetApp().m_xnestPID);
+        wxGetApp().m_xnestPID = 0;
+    }
 }
 
 IMPLEMENT_CLASS(wxEmulatorContainer, wxWindow)
@@ -229,47 +339,55 @@ wxEmulatorContainer::wxEmulatorContainer(wxWindow* parent, wxWindowID id):
 {
 }
 
-void wxEmulatorContainer::OnSize(wxSizeEvent& event)
+void wxEmulatorContainer::OnSize(wxSizeEvent& WXUNUSED(event))
+{
+    DoResize();
+}
+
+void wxEmulatorContainer::DoResize()
 {
     wxSize sz = GetClientSize();
-    if (wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.Ok() &&
-        wxGetApp().m_xnestWindow)
+    if (wxGetApp().m_xnestWindow
+#ifdef __WXX11__
+        && wxGetApp().m_xnestWindow->GetMainWindow()
+#endif
+        )
     {
-        int bitmapWidth = wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.GetWidth();
-        int bitmapHeight = wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.GetHeight();
-        
-        int x = wxMax(0, (sz.x - bitmapWidth)/2.0);
-        int y = wxMax(0, (sz.y - bitmapHeight)/2.0);
-        
+        int deviceWidth = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.x;
+        int deviceHeight = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.y;
+
+        int x = wxMax(0, (int) ((sz.x - deviceWidth)/2.0));
+        int y = wxMax(0, (int) ((sz.y - deviceHeight)/2.0));
+
         x += wxGetApp().m_emulatorInfo.m_emulatorScreenPosition.x;
         y += wxGetApp().m_emulatorInfo.m_emulatorScreenPosition.y;
-        
+
         wxGetApp().m_xnestWindow->Move(x, y);
     }
     Refresh();
 }
 
-void wxEmulatorContainer::OnPaint(wxPaintEvent& event)
+void wxEmulatorContainer::OnPaint(wxPaintEvent& WXUNUSED(event))
 {
     wxPaintDC dc(this);
-    
+
     wxSize sz = GetClientSize();
     if (wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.Ok())
     {
-        int bitmapWidth = wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.GetWidth();
-        int bitmapHeight = wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.GetHeight();
-        
-        int x = wxMax(0, (sz.x - bitmapWidth)/2.0);
-        int y = wxMax(0, (sz.y - bitmapHeight)/2.0);
-        
+        int deviceWidth = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.x;
+        int deviceHeight = wxGetApp().m_emulatorInfo.m_emulatorDeviceSize.y;
+
+        int x = wxMax(0, (int) ((sz.x - deviceWidth)/2.0));
+        int y = wxMax(0, (int) ((sz.y - deviceHeight)/2.0));
+
         dc.DrawBitmap(wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap, x, y);
     }
 }
 
 void wxEmulatorContainer::OnEraseBackground(wxEraseEvent& event)
 {
-    wxDC* dc = NULL;
-    
+    wxDC* dc wxDUMMY_INITIALIZE(NULL);
+
     if (event.GetDC())
     {
         dc = event.GetDC();
@@ -278,10 +396,10 @@ void wxEmulatorContainer::OnEraseBackground(wxEraseEvent& event)
     {
         dc = new wxClientDC(this);
     }
-    
+
     dc->SetBackground(wxBrush(wxGetApp().m_emulatorInfo.m_emulatorBackgroundColour, wxSOLID));
     dc->Clear();
-    
+
     if (!event.GetDC())
         delete dc;
 }
@@ -290,6 +408,7 @@ void wxEmulatorContainer::OnEraseBackground(wxEraseEvent& event)
 
 void wxEmulatorInfo::Copy(const wxEmulatorInfo& info)
 {
+    m_emulatorFilename = info.m_emulatorFilename;
     m_emulatorTitle = info.m_emulatorTitle;
     m_emulatorDescription = info.m_emulatorDescription;
     m_emulatorScreenPosition = info.m_emulatorScreenPosition;
@@ -297,49 +416,193 @@ void wxEmulatorInfo::Copy(const wxEmulatorInfo& info)
     m_emulatorBackgroundBitmap = info.m_emulatorBackgroundBitmap;
     m_emulatorBackgroundBitmapName = info.m_emulatorBackgroundBitmapName;
     m_emulatorBackgroundColour = info.m_emulatorBackgroundColour;
+    m_emulatorDeviceSize = info.m_emulatorDeviceSize;
 }
 
 // Initialisation
 void wxEmulatorInfo::Init()
 {
+    m_emulatorDeviceSize = wxSize(260, 340);
+    m_emulatorScreenSize = wxSize(240, 320);
 }
 
 // Loads bitmaps
-bool wxEmulatorInfo::Load()
+bool wxEmulatorInfo::Load(const wxString& appDir)
 {
-    if (m_emulatorBackgroundBitmapName.IsEmpty())
-        return FALSE;
-
-    // TODO: prepend current directory if relative name
-    int type = wxDetermineImageType(m_emulatorBackgroundBitmapName);
-    if (type == -1)
-        return FALSE;
-    
-    return m_emulatorBackgroundBitmap.LoadFile(m_emulatorBackgroundBitmapName, type);
+    // Try to find absolute path
+    wxString absoluteConfigPath = m_emulatorFilename;
+    if ( !::wxIsAbsolutePath(absoluteConfigPath) )
+    {
+        wxString currDir = wxGetCwd();
+        absoluteConfigPath = currDir + wxString(wxFILE_SEP_PATH) + m_emulatorFilename;
+        if ( !wxFile::Exists(absoluteConfigPath) )
+        {
+            absoluteConfigPath = appDir + wxString(wxFILE_SEP_PATH)
+                + m_emulatorFilename;
+        }
+    }
+
+    if ( !wxFile::Exists(absoluteConfigPath) )
+    {
+        wxString str;
+        str.Printf( wxT("Could not find config file %s"),
+            absoluteConfigPath.c_str() );
+
+        wxMessageBox(str);
+        return false;
+    }
+
+    wxString rootPath = wxPathOnly(absoluteConfigPath);
+
+    {
+        wxFileConfig config(wxT("wxEmulator"), wxT("wxWidgets"),
+            absoluteConfigPath, wxEmptyString, wxCONFIG_USE_LOCAL_FILE);
+
+        config.Read(wxT("/General/title"), & m_emulatorTitle);
+        config.Read(wxT("/General/description"), & m_emulatorDescription);
+        config.Read(wxT("/General/backgroundBitmap"), & m_emulatorBackgroundBitmapName);
+
+        wxString colString;
+        if (config.Read(wxT("/General/backgroundColour"), & colString) ||
+            config.Read(wxT("/General/backgroundColor"), & colString)
+           )
+        {
+            m_emulatorBackgroundColour = wxHexStringToColour(colString);
+        }
+
+        int x = 0, y = 0, w = 0, h = 0, dw = 0, dh = 0;
+        config.Read(wxT("/General/screenX"), & x);
+        config.Read(wxT("/General/screenY"), & y);
+        config.Read(wxT("/General/screenWidth"), & w);
+        config.Read(wxT("/General/screenHeight"), & h);
+        if (config.Read(wxT("/General/deviceWidth"), & dw) && config.Read(wxT("/General/deviceHeight"), & dh))
+        {
+            m_emulatorDeviceSize = wxSize(dw, dh);
+        }
+
+        m_emulatorScreenPosition = wxPoint(x, y);
+        m_emulatorScreenSize = wxSize(w, h);
+    }
+
+    if (!m_emulatorBackgroundBitmapName.empty())
+    {
+        wxString absoluteBackgroundBitmapName = rootPath + wxString(wxFILE_SEP_PATH) + m_emulatorBackgroundBitmapName;
+        if ( !wxFile::Exists(absoluteBackgroundBitmapName) )
+        {
+            wxString str;
+            str.Printf( wxT("Could not find bitmap %s"),
+                absoluteBackgroundBitmapName.c_str() );
+            wxMessageBox(str);
+            return false;
+        }
+
+        wxBitmapType type = wxDetermineImageType(m_emulatorBackgroundBitmapName);
+        if (type == wxBITMAP_TYPE_INVALID)
+            return false;
+
+        if (!m_emulatorBackgroundBitmap.LoadFile(m_emulatorBackgroundBitmapName, type))
+        {
+            wxString str;
+            str.Printf( wxT("Could not load bitmap file %s"),
+                m_emulatorBackgroundBitmapName.c_str() );
+            wxMessageBox(str);
+            return false;
+        }
+
+        m_emulatorDeviceSize = wxSize(m_emulatorBackgroundBitmap.GetWidth(),
+            m_emulatorBackgroundBitmap.GetHeight());
+    }
+    return true;
 }
 
 // Returns the image type, or -1, determined from the extension.
-int wxDetermineImageType(const wxString& filename)
+wxBitmapType wxDetermineImageType(const wxString& filename)
 {
     wxString path, name, ext;
 
-    wxSplitPath(filename, & path, & name, & ext);
+    wxFileName::SplitPath(filename, & path, & name, & ext);
 
     ext.MakeLower();
-    if (ext == "jpg" || ext == "jpeg")
+    if (ext == wxT("jpg") || ext == wxT("jpeg"))
         return wxBITMAP_TYPE_JPEG;
-    else if (ext == "gif")
+    if (ext == wxT("gif"))
         return wxBITMAP_TYPE_GIF;
-    else if (ext == "bmp")
+    if (ext == wxT("bmp"))
         return wxBITMAP_TYPE_BMP;
-    else if (ext == "png")
+    if (ext == wxT("png"))
         return wxBITMAP_TYPE_PNG;
-    else if (ext == "pcx")
+    if (ext == wxT("pcx"))
         return wxBITMAP_TYPE_PCX;
-    else if (ext == "tif" || ext == "tiff")
+    if (ext == wxT("tif") || ext == wxT("tiff"))
         return wxBITMAP_TYPE_TIF;
-    else
-        return -1;
+
+    return wxBITMAP_TYPE_INVALID;
+}
+
+// Convert a colour to a 6-digit hex string
+wxString wxColourToHexString(const wxColour& col)
+{
+    wxString hex;
+
+    hex += wxDecToHex(col.Red());
+    hex += wxDecToHex(col.Green());
+    hex += wxDecToHex(col.Blue());
+
+    return hex;
+}
+
+// Convert 6-digit hex string to a colour
+wxColour wxHexStringToColour(const wxString& hex)
+{
+    unsigned char r = (unsigned char)wxHexToDec(hex.Mid(0, 2));
+    unsigned char g = (unsigned char)wxHexToDec(hex.Mid(2, 2));
+    unsigned char b = (unsigned char)wxHexToDec(hex.Mid(4, 2));
+
+    return wxColour(r, g, b);
 }
 
+// Find the absolute path where this application has been run from.
+// argv0 is wxTheApp->argv[0]
+// cwd is the current working directory (at startup)
+// appVariableName is the name of a variable containing the directory for this app, e.g.
+// MYAPPDIR. This is checked first.
+
+wxString wxFindAppPath(const wxString& argv0, const wxString& cwd, const wxString& appVariableName)
+{
+    wxString str;
+
+    // Try appVariableName
+    if (!appVariableName.empty())
+    {
+        str = wxGetenv(appVariableName);
+        if (!str.empty())
+            return str;
+    }
+
+    if (wxIsAbsolutePath(argv0))
+        return wxPathOnly(argv0);
+    else
+    {
+        // Is it a relative path?
+        wxString currentDir(cwd);
+        if (!wxEndsWithPathSeparator(currentDir))
+            currentDir += wxFILE_SEP_PATH;
+
+        str = currentDir + argv0;
+        if ( wxFile::Exists(str) )
+            return wxPathOnly(str);
+    }
+
+    // OK, it's neither an absolute path nor a relative path.
+    // Search PATH.
+
+    wxPathList pathList;
+    pathList.AddEnvList(wxT("PATH"));
+    str = pathList.FindAbsoluteValidPath(argv0);
+    if (!str.empty())
+        return wxPathOnly(str);
+
+    // Failed
+    return wxEmptyString;
+}