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wxWindows-2.3.3
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utils
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emulator
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emulator.cpp
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C/C++ Source or Header
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2002-07-14
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/////////////////////////////////////////////////////////////////////////////
// Name: emulator.cpp
// Purpose: Emulator wxWindows sample
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id: emulator.cpp,v 1.5 2002/07/13 12:14:07 GD Exp $
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
#ifdef __GNUG__
#pragma implementation "emulator.h"
#endif
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWindows headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/confbase.h"
#include "wx/fileconf.h"
#include "wx/cmdline.h"
#include "wx/image.h"
#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 "emulator.xpm"
#endif
// ----------------------------------------------------------------------------
// event tables and other macros for wxWindows
// ----------------------------------------------------------------------------
// the event tables connect the wxWindows 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
// 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_NONE }
};
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
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()
{
wxLog::SetTimestamp(NULL);
wxInitAllImageHandlers();
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("DEBUG") == 0) ||
(m_appDir.Right(11).CmpNoCase("DEBUGSTABLE") == 0) ||
(m_appDir.Right(7).CmpNoCase("RELEASE") == 0) ||
(m_appDir.Right(13).CmpNoCase("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("wxWindows 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(m_appDir))
{
//wxMessageBox(wxT("Sorry, could not load this emulator. Please check bitmaps are valid."));
return FALSE;
}
// create the main application window
wxEmulatorFrame *frame = new wxEmulatorFrame(_T("wxEmulator"),
wxPoint(50, 50), wxSize(450, 340));
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);
m_containerWindow = new wxEmulatorContainer(frame, -1);
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__
m_xnestWindow = new wxAdoptedWindow;
wxString 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;
}
wxReparenter reparenter;
if (!reparenter.WaitAndReparent(m_containerWindow, m_xnestWindow, wxT("Xnest")))
{
wxMessageBox(wxT("Sorry, could not reparent Xnest.."));
frame->Destroy();
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
// application would exit immediately.
return TRUE;
}
// Prepend the current program directory to the name
wxString wxEmulatorApp::GetFullAppPath(const wxString& filename) const
{
wxString path(m_appDir);
if (path.Last() != '\\' && path.Last() != '/' && filename[0] != '\\' && filename[0] != '/')
#ifdef __X__
path += '/';
#else
path += '\\';
#endif
path += filename;
return path;
}
// 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);
}
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
// frame constructor
wxEmulatorFrame::wxEmulatorFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
: wxFrame(NULL, -1, title, pos, size)
{
// set the frame icon
SetIcon(wxICON(emulator));
#if wxUSE_MENUS
// create a menu bar
wxMenu *menuFile = new wxMenu;
// the "About" item should be in the help menu
wxMenu *helpMenu = new wxMenu;
helpMenu->Append(Emulator_About, _T("&About...\tF1"), _T("Show about dialog"));
menuFile->Append(Emulator_Quit, _T("E&xit\tAlt-X"), _T("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"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
#endif // wxUSE_MENUS
#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
#endif // wxUSE_STATUSBAR
}
// event handlers
void wxEmulatorFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// 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"));
wxMessageBox(msg, _T("About wxEmulator"), wxOK | wxICON_INFORMATION, this);
}
void wxEmulatorFrame::OnCloseWindow(wxCloseEvent& 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)
BEGIN_EVENT_TABLE(wxEmulatorContainer, wxWindow)
EVT_SIZE(wxEmulatorContainer::OnSize)
EVT_PAINT(wxEmulatorContainer::OnPaint)
EVT_ERASE_BACKGROUND(wxEmulatorContainer::OnEraseBackground)
END_EVENT_TABLE()
wxEmulatorContainer::wxEmulatorContainer(wxWindow* parent, wxWindowID id):
wxWindow(parent, id, wxDefaultPosition, wxDefaultSize)
{
}
void wxEmulatorContainer::OnSize(wxSizeEvent& event)
{
DoResize();
}
void wxEmulatorContainer::DoResize()
{
wxSize sz = GetClientSize();
if (wxGetApp().m_xnestWindow
#ifdef __WXX11__
&& wxGetApp().m_xnestWindow->GetMainWindow()
#endif
)
{
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)
{
wxPaintDC dc(this);
wxSize sz = GetClientSize();
if (wxGetApp().m_emulatorInfo.m_emulatorBackgroundBitmap.Ok())
{
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;
if (event.GetDC())
{
dc = event.GetDC();
}
else
{
dc = new wxClientDC(this);
}
dc->SetBackground(wxBrush(wxGetApp().m_emulatorInfo.m_emulatorBackgroundColour, wxSOLID));
dc->Clear();
if (!event.GetDC())
delete dc;
}
// Information about the emulator decorations
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;
m_emulatorScreenSize = info.m_emulatorScreenSize;
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(const wxString& appDir)
{
// Try to find absolute path
wxString absoluteConfigPath = m_emulatorFilename;
if (!wxIsAbsolutePath(absoluteConfigPath))
{
wxString currDir = wxGetCwd();
absoluteConfigPath = currDir + wxString(wxFILE_SEP_PATH) + m_emulatorFilename;
if (!wxFileExists(absoluteConfigPath))
{
absoluteConfigPath = appDir + wxString(wxFILE_SEP_PATH) + m_emulatorFilename;
}
}
if (!wxFileExists(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("wxWindows"),
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.IsEmpty())
{
wxString absoluteBackgroundBitmapName = rootPath + wxString(wxFILE_SEP_PATH) + m_emulatorBackgroundBitmapName;
if (!wxFileExists(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.
wxBitmapType wxDetermineImageType(const wxString& filename)
{
wxString path, name, ext;
wxSplitPath(filename, & path, & name, & ext);
ext.MakeLower();
if (ext == "jpg" || ext == "jpeg")
return wxBITMAP_TYPE_JPEG;
if (ext == "gif")
return wxBITMAP_TYPE_GIF;
if (ext == "bmp")
return wxBITMAP_TYPE_BMP;
if (ext == "png")
return wxBITMAP_TYPE_PNG;
if (ext == "pcx")
return wxBITMAP_TYPE_PCX;
if (ext == "tif" || ext == "tiff")
return wxBITMAP_TYPE_TIF;
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 int r = 0;
unsigned int g = 0;
unsigned int b = 0;
r = wxHexToDec(hex.Mid(0, 2));
g = wxHexToDec(hex.Mid(2, 2));
b = 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.IsEmpty())
{
str = wxGetenv(appVariableName);
if (!str.IsEmpty())
return str;
}
if (wxIsAbsolutePath(argv0))
return wxPathOnly(argv0);
else
{
// Is it a relative path?
wxString currentDir(cwd);
if (currentDir.Last() != wxFILE_SEP_PATH)
currentDir += wxFILE_SEP_PATH;
str = currentDir + argv0;
if (wxFileExists(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.IsEmpty())
return wxPathOnly(str);
// Failed
return wxEmptyString;
}