Unselect all wxDataViewCtrl items when clicking outside of the item area.

[wxWidgets.git] / samples / exec / exec.cpp

diff --git a/samples/exec/exec.cpp b/samples/exec/exec.cpp
index 75279b9ce92c40bd8a38ec014752dd2670fff22d..d72c89a7adb37a9c9c81de81ae4685e16fd44da9 100644 (file)
--- a/samples/exec/exec.cpp
+++ b/samples/exec/exec.cpp
@@ -43,6 +43,8 @@
     #include "wx/choicdlg.h"
 
     #include "wx/button.h"
     #include "wx/choicdlg.h"
 
     #include "wx/button.h"

+    #include "wx/checkbox.h"
+    #include "wx/stattext.h"

     #include "wx/textctrl.h"
     #include "wx/listbox.h"
 
     #include "wx/textctrl.h"
     #include "wx/listbox.h"
 


@@ -53,6 +55,8 @@
 #include "wx/numdlg.h"
 #include "wx/textdlg.h"
 #include "wx/ffile.h"
 #include "wx/numdlg.h"
 #include "wx/textdlg.h"
 #include "wx/ffile.h"

+#include "wx/scopedptr.h"
+#include "wx/stopwatch.h"

 
 #include "wx/process.h"
 
 
 #include "wx/process.h"
 


@@ -62,6 +66,10 @@
     #include "wx/dde.h"
 #endif // __WINDOWS__
 
     #include "wx/dde.h"
 #endif // __WINDOWS__
 

+#ifndef wxHAS_IMAGES_IN_RESOURCES
+    #include "../sample.xpm"
+#endif
+

 // ----------------------------------------------------------------------------
 // the usual application and main frame classes
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // the usual application and main frame classes
 // ----------------------------------------------------------------------------


@@ -81,14 +89,18 @@ public:
 
 // Define an array of process pointers used by MyFrame
 class MyPipedProcess;
 
 // Define an array of process pointers used by MyFrame
 class MyPipedProcess;

-WX_DEFINE_ARRAY_PTR(MyPipedProcess *, MyProcessesArray);
+WX_DEFINE_ARRAY_PTR(MyPipedProcess *, MyPipedProcessesArray);
+
+class MyProcess;
+WX_DEFINE_ARRAY_PTR(MyProcess *, MyProcessesArray);

 
 // Define a new frame type: this is going to be our main frame
 class MyFrame : public wxFrame
 {
 public:
 
 // Define a new frame type: this is going to be our main frame
 class MyFrame : public wxFrame
 {
 public:

-    // ctor(s)
+    // ctor and dtor

     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
     MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);

+    virtual ~MyFrame();

 
     // event handlers (these functions should _not_ be virtual)
     void OnQuit(wxCommandEvent& event);
 
     // event handlers (these functions should _not_ be virtual)
     void OnQuit(wxCommandEvent& event);


@@ -97,8 +109,10 @@ public:
 
     void OnClear(wxCommandEvent& event);
 
 
     void OnClear(wxCommandEvent& event);
 

+    void OnBeginBusyCursor(wxCommandEvent& event);
+    void OnEndBusyCursor(wxCommandEvent& event);
+

     void OnSyncExec(wxCommandEvent& event);
     void OnSyncExec(wxCommandEvent& event);

-    void OnSyncNoEventsExec(wxCommandEvent& event);

     void OnAsyncExec(wxCommandEvent& event);
     void OnShell(wxCommandEvent& event);
     void OnExecWithRedirect(wxCommandEvent& event);
     void OnAsyncExec(wxCommandEvent& event);
     void OnShell(wxCommandEvent& event);
     void OnExecWithRedirect(wxCommandEvent& event);


@@ -107,49 +121,40 @@ public:
     void OnPOpen(wxCommandEvent& event);
 
     void OnFileExec(wxCommandEvent& event);
     void OnPOpen(wxCommandEvent& event);
 
     void OnFileExec(wxCommandEvent& event);

+    void OnFileLaunch(wxCommandEvent& event);

     void OnOpenURL(wxCommandEvent& event);
     void OnOpenURL(wxCommandEvent& event);

+    void OnShowCommandForExt(wxCommandEvent& event);

 
     void OnAbout(wxCommandEvent& event);
 
     // polling output of async processes
 
     void OnAbout(wxCommandEvent& event);
 
     // polling output of async processes

-    void OnTimer(wxTimerEvent& event);
+    void OnIdleTimer(wxTimerEvent& event);

     void OnIdle(wxIdleEvent& event);
 
     // for MyPipedProcess
     void OnProcessTerminated(MyPipedProcess *process);
     wxListBox *GetLogListBox() const { return m_lbox; }
 
     void OnIdle(wxIdleEvent& event);
 
     // for MyPipedProcess
     void OnProcessTerminated(MyPipedProcess *process);
     wxListBox *GetLogListBox() const { return m_lbox; }
 

+    // for MyProcess
+    void OnAsyncTermination(MyProcess *process);
+
+    // timer updating a counter in the background
+    void OnBgTimer(wxTimerEvent& event);
+

 private:
     void ShowOutput(const wxString& cmd,
                     const wxArrayString& output,
                     const wxString& title);
 
 private:
     void ShowOutput(const wxString& cmd,
                     const wxArrayString& output,
                     const wxString& title);
 

-    void DoAsyncExec(const wxString& cmd);
+    int GetExecFlags() const;

 
 

-    void AddAsyncProcess(MyPipedProcess *process)
-    {
-        if ( m_running.IsEmpty() )
-        {
-            // we want to start getting the timer events to ensure that a
-            // steady stream of idle events comes in -- otherwise we
-            // wouldn't be able to poll the child process input
-            m_timerIdleWakeUp.Start(100);
-        }
-        //else: the timer is already running
+    void DoAsyncExec(const wxString& cmd);

 
 

-        m_running.Add(process);
-    }
+    void AddAsyncProcess(MyProcess *process) { m_allAsync.push_back(process); }

 
 

-    void RemoveAsyncProcess(MyPipedProcess *process)
-    {
-        m_running.Remove(process);
+    void AddPipedProcess(MyPipedProcess *process);
+    void RemovePipedProcess(MyPipedProcess *process);

 
 

-        if ( m_running.IsEmpty() )
-        {
-            // we don't need to get idle events all the time any more
-            m_timerIdleWakeUp.Stop();
-        }
-    }

 
     // the PID of the last process we launched asynchronously
     long m_pidLast;
 
     // the PID of the last process we launched asynchronously
     long m_pidLast;


@@ -171,11 +176,19 @@ private:
 
     wxListBox *m_lbox;
 
 
     wxListBox *m_lbox;
 

-    MyProcessesArray m_running;
+    // array of running processes with redirected IO
+    MyPipedProcessesArray m_running;
+
+    // array of all asynchrously running processes
+    MyProcessesArray m_allAsync;

 
     // the idle event wake up timer
     wxTimer m_timerIdleWakeUp;
 
 
     // the idle event wake up timer
     wxTimer m_timerIdleWakeUp;
 

+    // a background timer allowing to easily check visually whether the
+    // messages are processed or not
+    wxTimer m_timerBg;
+

     // any class wishing to process wxWidgets events must use this macro
     DECLARE_EVENT_TABLE()
 };
     // any class wishing to process wxWidgets events must use this macro
     DECLARE_EVENT_TABLE()
 };


@@ -205,7 +218,7 @@ protected:
     void DoSend()
     {
         wxString s(m_textOut->GetValue());
     void DoSend()
     {
         wxString s(m_textOut->GetValue());

-        s += _T('\n');
+        s += wxT('\n');

         m_out.Write(s.c_str(), s.length());
         m_textOut->Clear();
 
         m_out.Write(s.c_str(), s.length());
         m_textOut->Clear();
 


@@ -296,22 +309,32 @@ private:
 // IDs for the controls and the menu commands
 enum
 {
 // IDs for the controls and the menu commands
 enum
 {

+    // timer ids
+    Exec_TimerIdle = 10,
+    Exec_TimerBg,
+

     // menu items
     // menu items

-    Exec_Quit = 100,
-    Exec_Kill,
+    Exec_Kill = 100,

     Exec_ClearLog,
     Exec_ClearLog,

+    Exec_BeginBusyCursor,
+    Exec_EndBusyCursor,

     Exec_SyncExec = 200,
     Exec_SyncExec = 200,

-    Exec_SyncNoEventsExec,

     Exec_AsyncExec,
     Exec_Shell,
     Exec_POpen,
     Exec_OpenFile,
     Exec_AsyncExec,
     Exec_Shell,
     Exec_POpen,
     Exec_OpenFile,

+    Exec_ShowCommandForExt,
+    Exec_LaunchFile,

     Exec_OpenURL,
     Exec_DDEExec,
     Exec_DDERequest,
     Exec_Redirect,
     Exec_Pipe,
     Exec_OpenURL,
     Exec_DDEExec,
     Exec_DDERequest,
     Exec_Redirect,
     Exec_Pipe,

-    Exec_About = 300,
+    Exec_Flags_HideConsole,
+    Exec_Flags_ShowConsole,
+    Exec_Flags_NoEvents,
+    Exec_About = wxID_ABOUT,
+    Exec_Quit = wxID_EXIT,

 
     // control ids
     Exec_Btn_Send = 1000,
 
     // control ids
     Exec_Btn_Send = 1000,


@@ -320,7 +343,7 @@ enum
     Exec_Btn_Close
 };
 
     Exec_Btn_Close
 };
 

-static const wxChar *DIALOG_TITLE = _T("Exec sample");
+static const wxChar *DIALOG_TITLE = wxT("Exec sample");

 
 // ----------------------------------------------------------------------------
 // event tables and other macros for wxWidgets
 
 // ----------------------------------------------------------------------------
 // event tables and other macros for wxWidgets


@@ -333,9 +356,10 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(Exec_Quit,  MyFrame::OnQuit)
     EVT_MENU(Exec_Kill,  MyFrame::OnKill)
     EVT_MENU(Exec_ClearLog,  MyFrame::OnClear)
     EVT_MENU(Exec_Quit,  MyFrame::OnQuit)
     EVT_MENU(Exec_Kill,  MyFrame::OnKill)
     EVT_MENU(Exec_ClearLog,  MyFrame::OnClear)

+    EVT_MENU(Exec_BeginBusyCursor,  MyFrame::OnBeginBusyCursor)
+    EVT_MENU(Exec_EndBusyCursor,  MyFrame::OnEndBusyCursor)

 
     EVT_MENU(Exec_SyncExec, MyFrame::OnSyncExec)
 
     EVT_MENU(Exec_SyncExec, MyFrame::OnSyncExec)

-    EVT_MENU(Exec_SyncNoEventsExec, MyFrame::OnSyncNoEventsExec)

     EVT_MENU(Exec_AsyncExec, MyFrame::OnAsyncExec)
     EVT_MENU(Exec_Shell, MyFrame::OnShell)
     EVT_MENU(Exec_Redirect, MyFrame::OnExecWithRedirect)
     EVT_MENU(Exec_AsyncExec, MyFrame::OnAsyncExec)
     EVT_MENU(Exec_Shell, MyFrame::OnShell)
     EVT_MENU(Exec_Redirect, MyFrame::OnExecWithRedirect)


@@ -344,6 +368,8 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(Exec_POpen, MyFrame::OnPOpen)
 
     EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec)
     EVT_MENU(Exec_POpen, MyFrame::OnPOpen)
 
     EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec)

+    EVT_MENU(Exec_ShowCommandForExt, MyFrame::OnShowCommandForExt)
+    EVT_MENU(Exec_LaunchFile, MyFrame::OnFileLaunch)

     EVT_MENU(Exec_OpenURL, MyFrame::OnOpenURL)
 
 #ifdef __WINDOWS__
     EVT_MENU(Exec_OpenURL, MyFrame::OnOpenURL)
 
 #ifdef __WINDOWS__


@@ -355,7 +381,8 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 
     EVT_IDLE(MyFrame::OnIdle)
 
 
     EVT_IDLE(MyFrame::OnIdle)
 

-    EVT_TIMER(wxID_ANY, MyFrame::OnTimer)
+    EVT_TIMER(Exec_TimerIdle, MyFrame::OnIdleTimer)
+    EVT_TIMER(Exec_TimerBg, MyFrame::OnBgTimer)

 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(MyPipeFrame, wxFrame)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(MyPipeFrame, wxFrame)


@@ -393,12 +420,11 @@ bool MyApp::OnInit()
         return false;
 
     // Create the main application window
         return false;
 
     // Create the main application window

-    MyFrame *frame = new MyFrame(_T("Exec wxWidgets sample"),
+    MyFrame *frame = new MyFrame(wxT("Exec wxWidgets sample"),

                                  wxDefaultPosition, wxSize(500, 140));
 
                                  wxDefaultPosition, wxSize(500, 140));
 

-    // Show it and tell the application that it's our main window
+    // Show it

     frame->Show(true);
     frame->Show(true);

-    SetTopWindow(frame);

 
     // success: wxApp::OnRun() will be called which will enter the main message
     // loop and the application will run. If we returned false here, the
 
     // success: wxApp::OnRun() will be called which will enter the main message
     // loop and the application will run. If we returned false here, the


@@ -417,8 +443,11 @@ bool MyApp::OnInit()
 // frame constructor
 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
        : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size),
 // frame constructor
 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
        : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size),

-         m_timerIdleWakeUp(this)
+         m_timerIdleWakeUp(this, Exec_TimerIdle),
+         m_timerBg(this, Exec_TimerBg)

 {
 {

+    SetIcon(wxICON(sample));
+

     m_pidLast = 0;
 
 #ifdef __WXMAC__
     m_pidLast = 0;
 
 #ifdef __WXMAC__


@@ -429,50 +458,64 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 
     // create a menu bar
     wxMenu *menuFile = new wxMenu(wxEmptyString, wxMENU_TEAROFF);
 
     // create a menu bar
     wxMenu *menuFile = new wxMenu(wxEmptyString, wxMENU_TEAROFF);

-    menuFile->Append(Exec_Kill, _T("&Kill process...\tCtrl-K"),
-                     _T("Kill a process by PID"));
+    menuFile->Append(Exec_Kill, wxT("&Kill process...\tCtrl-K"),
+                     wxT("Kill a process by PID"));
+    menuFile->AppendSeparator();
+    menuFile->Append(Exec_OpenFile, wxT("Open &file...\tCtrl-F"),
+                     wxT("Launch the command to open this kind of files"));
+    menuFile->Append(Exec_ShowCommandForExt,
+                     "Show association for extension...\tShift-Ctrl-A",
+                     "Show the command associated with the given extension");
+    menuFile->Append(Exec_LaunchFile, wxT("La&unch file...\tShift-Ctrl-F"),
+                     wxT("Launch the default application associated with the file"));
+    menuFile->Append(Exec_OpenURL, wxT("Open &URL...\tCtrl-U"),
+                     wxT("Launch the default browser with the given URL"));

     menuFile->AppendSeparator();
     menuFile->AppendSeparator();

-    menuFile->Append(Exec_ClearLog, _T("&Clear log\tCtrl-C"),
-                     _T("Clear the log window"));
+    menuFile->Append(Exec_BeginBusyCursor, wxT("Show &busy cursor\tCtrl-C"));
+    menuFile->Append(Exec_EndBusyCursor, wxT("Show &normal cursor\tShift-Ctrl-C"));

     menuFile->AppendSeparator();
     menuFile->AppendSeparator();

-    menuFile->Append(Exec_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
+    menuFile->Append(Exec_ClearLog, wxT("&Clear log\tCtrl-L"),
+                     wxT("Clear the log window"));
+    menuFile->AppendSeparator();
+    menuFile->Append(Exec_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
+
+    wxMenu *flagsMenu = new wxMenu;
+    flagsMenu->AppendCheckItem(Exec_Flags_HideConsole, "Always &hide console");
+    flagsMenu->AppendCheckItem(Exec_Flags_ShowConsole, "Always &show console");
+    flagsMenu->AppendCheckItem(Exec_Flags_NoEvents, "Disable &events",
+                               "This flag is valid for sync execution only");

 
     wxMenu *execMenu = new wxMenu;
 
     wxMenu *execMenu = new wxMenu;

-    execMenu->Append(Exec_SyncExec, _T("Sync &execution...\tCtrl-E"),
-                     _T("Launch a program and return when it terminates"));
-    execMenu->Append(Exec_SyncNoEventsExec, _T("Sync execution and &block...\tCtrl-B"),
-                     _T("Launch a program and block until it terminates"));
-    execMenu->Append(Exec_AsyncExec, _T("&Async execution...\tCtrl-A"),
-                     _T("Launch a program and return immediately"));
-    execMenu->Append(Exec_Shell, _T("Execute &shell command...\tCtrl-S"),
-                     _T("Launch a shell and execute a command in it"));
+    execMenu->AppendSubMenu(flagsMenu, "Execution flags");

     execMenu->AppendSeparator();
     execMenu->AppendSeparator();

-    execMenu->Append(Exec_Redirect, _T("Capture command &output...\tCtrl-O"),
-                     _T("Launch a program and capture its output"));
-    execMenu->Append(Exec_Pipe, _T("&Pipe through command..."),
-                     _T("Pipe a string through a filter"));
-    execMenu->Append(Exec_POpen, _T("&Open a pipe to a command...\tCtrl-P"),
-                     _T("Open a pipe to and from another program"));
-
+    execMenu->Append(Exec_SyncExec, wxT("Sync &execution...\tCtrl-E"),
+                     wxT("Launch a program and return when it terminates"));
+    execMenu->Append(Exec_AsyncExec, wxT("&Async execution...\tCtrl-A"),
+                     wxT("Launch a program and return immediately"));
+    execMenu->Append(Exec_Shell, wxT("Execute &shell command...\tCtrl-S"),
+                     wxT("Launch a shell and execute a command in it"));

     execMenu->AppendSeparator();
     execMenu->AppendSeparator();

-    execMenu->Append(Exec_OpenFile, _T("Open &file...\tCtrl-F"),
-                     _T("Launch the command to open this kind of files"));
-    execMenu->Append(Exec_OpenURL, _T("Open &URL...\tCtrl-U"),
-                     _T("Launch the default browser with the given URL"));
+    execMenu->Append(Exec_Redirect, wxT("Capture command &output...\tCtrl-O"),
+                     wxT("Launch a program and capture its output"));
+    execMenu->Append(Exec_Pipe, wxT("&Pipe through command..."),
+                     wxT("Pipe a string through a filter"));
+    execMenu->Append(Exec_POpen, wxT("&Open a pipe to a command...\tCtrl-P"),
+                     wxT("Open a pipe to and from another program"));
+

 #ifdef __WINDOWS__
     execMenu->AppendSeparator();
 #ifdef __WINDOWS__
     execMenu->AppendSeparator();

-    execMenu->Append(Exec_DDEExec, _T("Execute command via &DDE...\tCtrl-D"));
-    execMenu->Append(Exec_DDERequest, _T("Send DDE &request...\tCtrl-R"));
+    execMenu->Append(Exec_DDEExec, wxT("Execute command via &DDE...\tCtrl-D"));
+    execMenu->Append(Exec_DDERequest, wxT("Send DDE &request...\tCtrl-R"));

 #endif
 
     wxMenu *helpMenu = new wxMenu(wxEmptyString, wxMENU_TEAROFF);
 #endif
 
     wxMenu *helpMenu = new wxMenu(wxEmptyString, wxMENU_TEAROFF);

-    helpMenu->Append(Exec_About, _T("&About...\tF1"), _T("Show about dialog"));
+    helpMenu->Append(Exec_About, wxT("&About\tF1"), wxT("Show about dialog"));

 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar();
 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar();

-    menuBar->Append(menuFile, _T("&File"));
-    menuBar->Append(execMenu, _T("&Exec"));
-    menuBar->Append(helpMenu, _T("&Help"));
+    menuBar->Append(menuFile, wxT("&File"));
+    menuBar->Append(execMenu, wxT("&Exec"));
+    menuBar->Append(helpMenu, wxT("&Help"));

 
     // ... and attach this menu bar to the frame
     SetMenuBar(menuBar);
 
     // ... and attach this menu bar to the frame
     SetMenuBar(menuBar);


@@ -481,14 +524,27 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     m_lbox = new wxListBox(this, wxID_ANY);
     wxFont font(12, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL,
                 wxFONTWEIGHT_NORMAL);
     m_lbox = new wxListBox(this, wxID_ANY);
     wxFont font(12, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL,
                 wxFONTWEIGHT_NORMAL);

-    if ( font.Ok() )
+    if ( font.IsOk() )

         m_lbox->SetFont(font);
 
 #if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)
         m_lbox->SetFont(font);
 
 #if wxUSE_STATUSBAR
     // create a status bar just for fun (by default with 1 pane only)

-    CreateStatusBar();
-    SetStatusText(_T("Welcome to wxWidgets exec sample!"));
+    CreateStatusBar(2);
+    SetStatusText(wxT("Welcome to wxWidgets exec sample!"));

 #endif // wxUSE_STATUSBAR
 #endif // wxUSE_STATUSBAR

+
+    m_timerBg.Start(1000);
+}
+
+MyFrame::~MyFrame()
+{
+    // any processes left until now must be deleted manually: normally this is
+    // done when the associated process terminates but it must be still running
+    // if this didn't happen until now
+    for ( size_t n = 0; n < m_allAsync.size(); n++ )
+    {
+        delete m_allAsync[n];
+    }

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -506,17 +562,27 @@ void MyFrame::OnClear(wxCommandEvent& WXUNUSED(event))
     m_lbox->Clear();
 }
 
     m_lbox->Clear();
 }
 

+void MyFrame::OnBeginBusyCursor(wxCommandEvent& WXUNUSED(event))
+{
+    wxBeginBusyCursor();
+}
+
+void MyFrame::OnEndBusyCursor(wxCommandEvent& WXUNUSED(event))
+{
+    wxEndBusyCursor();
+}
+

 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {

-    wxMessageBox(_T("Exec wxWidgets Sample\n(c) 2000-2002 Vadim Zeitlin"),
-                 _T("About Exec"), wxOK | wxICON_INFORMATION, this);
+    wxMessageBox(wxT("Exec wxWidgets Sample\n(c) 2000-2002 Vadim Zeitlin"),
+                 wxT("About Exec"), wxOK | wxICON_INFORMATION, this);

 }
 
 void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event))
 {
 }
 
 void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event))
 {

-    long pid = wxGetNumberFromUser(_T("Please specify the process to kill"),
-                                   _T("Enter PID:"),
-                                   _T("Exec question"),
+    long pid = wxGetNumberFromUser(wxT("Please specify the process to kill"),
+                                   wxT("Enter PID:"),
+                                   wxT("Exec question"),

                                    m_pidLast,
                                    // we need the full unsigned int range
                                    -INT_MAX, INT_MAX,
                                    m_pidLast,
                                    // we need the full unsigned int range
                                    -INT_MAX, INT_MAX,


@@ -527,34 +593,38 @@ void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event))
         return;
     }
 
         return;
     }
 

+    m_pidLast = pid;
+

     static const wxString signalNames[] =
     {
     static const wxString signalNames[] =
     {

-        _T("Just test (SIGNONE)"),
-        _T("Hangup (SIGHUP)"),
-        _T("Interrupt (SIGINT)"),
-        _T("Quit (SIGQUIT)"),
-        _T("Illegal instruction (SIGILL)"),
-        _T("Trap (SIGTRAP)"),
-        _T("Abort (SIGABRT)"),
-        _T("Emulated trap (SIGEMT)"),
-        _T("FP exception (SIGFPE)"),
-        _T("Kill (SIGKILL)"),
-        _T("Bus (SIGBUS)"),
-        _T("Segment violation (SIGSEGV)"),
-        _T("System (SIGSYS)"),
-        _T("Broken pipe (SIGPIPE)"),
-        _T("Alarm (SIGALRM)"),
-        _T("Terminate (SIGTERM)"),
+        wxT("Just test (SIGNONE)"),
+        wxT("Hangup (SIGHUP)"),
+        wxT("Interrupt (SIGINT)"),
+        wxT("Quit (SIGQUIT)"),
+        wxT("Illegal instruction (SIGILL)"),
+        wxT("Trap (SIGTRAP)"),
+        wxT("Abort (SIGABRT)"),
+        wxT("Emulated trap (SIGEMT)"),
+        wxT("FP exception (SIGFPE)"),
+        wxT("Kill (SIGKILL)"),
+        wxT("Bus (SIGBUS)"),
+        wxT("Segment violation (SIGSEGV)"),
+        wxT("System (SIGSYS)"),
+        wxT("Broken pipe (SIGPIPE)"),
+        wxT("Alarm (SIGALRM)"),
+        wxT("Terminate (SIGTERM)"),

     };
 
     };
 

-    int sig = wxGetSingleChoiceIndex(_T("How to kill the process?"),
-                                     _T("Exec question"),
+    static int s_sigLast = wxSIGNONE;
+    int sig = wxGetSingleChoiceIndex(wxT("How to kill the process?"),
+                                     wxT("Exec question"),

                                      WXSIZEOF(signalNames), signalNames,
                                      WXSIZEOF(signalNames), signalNames,

+                                     s_sigLast,

                                      this);
     switch ( sig )
     {
         default:
                                      this);
     switch ( sig )
     {
         default:

-            wxFAIL_MSG( _T("unexpected return value") );
+            wxFAIL_MSG( wxT("unexpected return value") );

             // fall through
 
         case -1:
             // fall through
 
         case -1:


@@ -580,93 +650,239 @@ void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event))
             break;
     }
 
             break;
     }
 

-    if ( sig == 0 )
+    s_sigLast = sig;
+
+    if ( sig == wxSIGNONE )

     {
     {

+        // This simply calls Kill(wxSIGNONE) but using it is more convenient.

         if ( wxProcess::Exists(pid) )
         if ( wxProcess::Exists(pid) )

-            wxLogStatus(_T("Process %ld is running."), pid);
+        {
+            wxLogStatus(wxT("Process %ld is running."), pid);
+        }

         else
         else

-            wxLogStatus(_T("No process with pid = %ld."), pid);
+        {
+            wxLogStatus(wxT("No process with pid = %ld."), pid);
+        }

     }
     else // not SIGNONE
     {
         wxKillError rc = wxProcess::Kill(pid, (wxSignal)sig);
         if ( rc == wxKILL_OK )
         {
     }
     else // not SIGNONE
     {
         wxKillError rc = wxProcess::Kill(pid, (wxSignal)sig);
         if ( rc == wxKILL_OK )
         {

-            wxLogStatus(_T("Process %ld killed with signal %d."), pid, sig);
+            wxLogStatus(wxT("Process %ld killed with signal %d."), pid, sig);

         }
         else
         {
             static const wxChar *errorText[] =
             {
         }
         else
         {
             static const wxChar *errorText[] =
             {

-                _T(""), // no error
-                _T("signal not supported"),
-                _T("permission denied"),
-                _T("no such process"),
-                _T("unspecified error"),
+                wxT(""), // no error
+                wxT("signal not supported"),
+                wxT("permission denied"),
+                wxT("no such process"),
+                wxT("unspecified error"),

             };
 
             };
 

-            wxLogStatus(_T("Failed to kill process %ld with signal %d: %s"),
+            wxLogStatus(wxT("Failed to kill process %ld with signal %d: %s"),

                         pid, sig, errorText[rc]);
         }
     }
 }
 
 // ----------------------------------------------------------------------------
                         pid, sig, errorText[rc]);
         }
     }
 }
 
 // ----------------------------------------------------------------------------

-// event handlers: exec menu
+// execution options dialog

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-void MyFrame::DoAsyncExec(const wxString& cmd)
+enum ExecQueryDialogID

 {
 {

-    wxProcess *process = new MyProcess(this, cmd);
-    m_pidLast = wxExecute(cmd, wxEXEC_ASYNC, process);
-    if ( !m_pidLast )
+    TEXT_EXECUTABLE,
+    TEXT_CWD,
+    TEXT_ENVIRONMENT
+};
+
+class ExecQueryDialog : public wxDialog
+{
+public:
+    ExecQueryDialog(const wxString& cmd);
+
+    wxString GetExecutable() const

     {
     {

-        wxLogError( _T("Execution of '%s' failed."), cmd.c_str() );
+        return m_executable->GetValue();
+    }

 
 

-        delete process;
+    wxString GetWorkDir() const
+    {
+        return m_useCWD->GetValue() ? m_cwdtext->GetValue() : wxString();

     }
     }

-    else
+
+    void GetEnvironment(wxEnvVariableHashMap& env);
+
+private:
+    void OnUpdateWorkingDirectoryUI(wxUpdateUIEvent& event)

     {
     {

-        wxLogStatus( _T("Process %ld (%s) launched."),
-            m_pidLast, cmd.c_str() );
+        event.Enable(m_useCWD->GetValue());
+    }

 
 

-        m_cmdLast = cmd;
+    void OnUpdateEnvironmentUI(wxUpdateUIEvent& event)
+    {
+        event.Enable(m_useEnv->GetValue());
+    }
+
+    wxTextCtrl* m_executable;
+    wxTextCtrl* m_cwdtext;
+    wxTextCtrl* m_envtext;
+    wxCheckBox* m_useCWD;
+    wxCheckBox* m_useEnv;
+
+    DECLARE_EVENT_TABLE()
+};
+
+BEGIN_EVENT_TABLE(ExecQueryDialog, wxDialog)
+    EVT_UPDATE_UI(TEXT_CWD, ExecQueryDialog::OnUpdateWorkingDirectoryUI)
+    EVT_UPDATE_UI(TEXT_ENVIRONMENT, ExecQueryDialog::OnUpdateEnvironmentUI)
+END_EVENT_TABLE()
+
+ExecQueryDialog::ExecQueryDialog(const wxString& cmd)
+    : wxDialog(NULL, wxID_ANY, DIALOG_TITLE,
+               wxDefaultPosition, wxDefaultSize,
+               wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
+{
+    wxSizer* globalSizer = new wxBoxSizer(wxVERTICAL);
+
+    m_executable = new wxTextCtrl(this, TEXT_EXECUTABLE, wxString());
+    m_cwdtext = new wxTextCtrl(this, TEXT_CWD, wxString());
+    m_envtext = new wxTextCtrl(this, TEXT_ENVIRONMENT, wxString(),
+                               wxDefaultPosition, wxSize(300, 200),
+                               wxTE_MULTILINE|wxHSCROLL);
+
+    const wxSizerFlags flagsExpand = wxSizerFlags().Expand().Border();
+    globalSizer->Add(new wxStaticText(this, wxID_ANY, "Enter the command: "),
+                     flagsExpand);
+    globalSizer->Add(m_executable, flagsExpand);
+
+    m_useCWD = new wxCheckBox(this, wxID_ANY, "Working directory: ");
+    globalSizer->Add(m_useCWD, flagsExpand);
+    globalSizer->Add(m_cwdtext, flagsExpand);
+
+    m_useEnv = new wxCheckBox(this, wxID_ANY, "Environment: ");
+    globalSizer->Add(m_useEnv, flagsExpand);
+    globalSizer->Add(m_envtext, wxSizerFlags(flagsExpand).Proportion(1));
+
+    globalSizer->Add(CreateStdDialogButtonSizer(wxOK|wxCANCEL), flagsExpand);
+    SetSizerAndFit(globalSizer);
+
+
+    m_executable->SetValue(cmd);
+    m_cwdtext->SetValue(wxGetCwd());
+    wxEnvVariableHashMap env;
+    if ( wxGetEnvMap(&env) )
+    {
+        for ( wxEnvVariableHashMap::iterator it = env.begin();
+              it != env.end();
+              ++it )
+        {
+            m_envtext->AppendText(it->first + '=' + it->second + '\n');
+        }

     }
     }

+    m_useCWD->SetValue(false);
+    m_useEnv->SetValue(false);

 }
 
 }
 

-void MyFrame::OnSyncExec(wxCommandEvent& WXUNUSED(event))
+void ExecQueryDialog::GetEnvironment(wxEnvVariableHashMap& env)

 {
 {

-    wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
-                                     DIALOG_TITLE,
-                                     m_cmdLast);
+    env.clear();
+    if ( m_useEnv->GetValue() )
+    {
+        wxString name,
+                 value;

 
 

-    if ( !cmd )
-        return;
+        const int nb = m_envtext->GetNumberOfLines();
+        for ( int l = 0; l < nb; l++ )
+        {
+            const wxString line = m_envtext->GetLineText(l).Trim();
+
+            if ( !line.empty() )
+            {
+                name = line.BeforeFirst('=', &value);
+                if ( name.empty() )
+                {
+                    wxLogWarning("Skipping invalid environment line \"%s\".", line);
+                    continue;
+                }
+
+                env[name] = value;
+            }
+        }
+    }
+}

 
 

-    wxLogStatus( _T("'%s' is running please wait..."), cmd.c_str() );
+static bool QueryExec(wxString& cmd, wxExecuteEnv& env)
+{
+    ExecQueryDialog dialog(cmd);

 
 

-    int code = wxExecute(cmd, wxEXEC_SYNC);
+    if ( dialog.ShowModal() != wxID_OK )
+        return false;

 
 

-    wxLogStatus(_T("Process '%s' terminated with exit code %d."),
-        cmd.c_str(), code);
+    cmd = dialog.GetExecutable();
+    env.cwd = dialog.GetWorkDir();
+    dialog.GetEnvironment(env.env);

 
 

-    m_cmdLast = cmd;
+    return true;

 }
 
 }
 

-void MyFrame::OnSyncNoEventsExec(wxCommandEvent& WXUNUSED(event))
+// ----------------------------------------------------------------------------
+// event handlers: exec menu
+// ----------------------------------------------------------------------------
+
+int MyFrame::GetExecFlags() const

 {
 {

-    wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
-                                     DIALOG_TITLE,
-                                     m_cmdLast);
+    wxMenuBar* const mbar = GetMenuBar();

 
 

-    if ( !cmd )
+    int flags = 0;
+
+    if ( mbar->IsChecked(Exec_Flags_HideConsole) )
+        flags |= wxEXEC_HIDE_CONSOLE;
+    if ( mbar->IsChecked(Exec_Flags_ShowConsole) )
+        flags |= wxEXEC_SHOW_CONSOLE;
+    if ( mbar->IsChecked(Exec_Flags_NoEvents) )
+        flags |= wxEXEC_NOEVENTS;
+
+    return flags;
+}
+
+void MyFrame::DoAsyncExec(const wxString& cmd)
+{
+    MyProcess * const process = new MyProcess(this, cmd);
+    m_pidLast = wxExecute(cmd, wxEXEC_ASYNC | GetExecFlags(), process);
+    if ( !m_pidLast )
+    {
+        wxLogError(wxT("Execution of '%s' failed."), cmd.c_str());
+
+        delete process;
+    }
+    else
+    {
+        wxLogStatus(wxT("Process %ld (%s) launched."), m_pidLast, cmd.c_str());
+
+        m_cmdLast = cmd;
+
+        // the parent frame keeps track of all async processes as it needs to
+        // free them if we exit before the child process terminates
+        AddAsyncProcess(process);
+    }
+}
+
+void MyFrame::OnSyncExec(wxCommandEvent& WXUNUSED(event))
+{
+    wxString cmd;
+    wxExecuteEnv env;
+    if ( !QueryExec(cmd, env) )

         return;
 
         return;
 

-    wxLogStatus( _T("'%s' is running please wait..."), cmd.c_str() );
+    wxLogStatus( wxT("'%s' is running please wait..."), cmd.c_str() );

 
 

-    int code = wxExecute(cmd, wxEXEC_BLOCK);
+    int code = wxExecute(cmd, wxEXEC_SYNC | GetExecFlags(), NULL, &env);

 
 

-    wxLogStatus(_T("Process '%s' terminated with exit code %d."),
+    wxLogStatus(wxT("Process '%s' terminated with exit code %d."),

         cmd.c_str(), code);
 
     m_cmdLast = cmd;
         cmd.c_str(), code);
 
     m_cmdLast = cmd;


@@ -674,7 +890,7 @@ void MyFrame::OnSyncNoEventsExec(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnAsyncExec(wxCommandEvent& WXUNUSED(event))
 {
 
 void MyFrame::OnAsyncExec(wxCommandEvent& WXUNUSED(event))
 {

-    wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+    wxString cmd = wxGetTextFromUser(wxT("Enter the command: "),

                                      DIALOG_TITLE,
                                      m_cmdLast);
 
                                      DIALOG_TITLE,
                                      m_cmdLast);
 


@@ -686,7 +902,7 @@ void MyFrame::OnAsyncExec(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event))
 {
 
 void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event))
 {

-    wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+    wxString cmd = wxGetTextFromUser(wxT("Enter the command: "),

                                      DIALOG_TITLE,
                                      m_cmdLast);
 
                                      DIALOG_TITLE,
                                      m_cmdLast);
 


@@ -694,14 +910,23 @@ void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event))
         return;
 
     int code = wxShell(cmd);
         return;
 
     int code = wxShell(cmd);

-    wxLogStatus(_T("Shell command '%s' terminated with exit code %d."),
+    wxLogStatus(wxT("Shell command '%s' terminated with exit code %d."),

                 cmd.c_str(), code);
     m_cmdLast = cmd;
 }
 
 void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
 {
                 cmd.c_str(), code);
     m_cmdLast = cmd;
 }
 
 void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
 {

-    wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+    if ( !m_cmdLast )
+    {
+#ifdef __WXMSW__
+        m_cmdLast = "type Makefile.in";
+#else
+        m_cmdLast = "cat -n Makefile";
+#endif
+    }
+
+    wxString cmd = wxGetTextFromUser(wxT("Enter the command: "),

                                      DIALOG_TITLE,
                                      m_cmdLast);
 
                                      DIALOG_TITLE,
                                      m_cmdLast);
 


@@ -709,8 +934,8 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
         return;
 
     bool sync;
         return;
 
     bool sync;

-    switch ( wxMessageBox(_T("Execute it synchronously?"),
-                          _T("Exec question"),
+    switch ( wxMessageBox(wxT("Execute it synchronously?"),
+                          wxT("Exec question"),

                           wxYES_NO | wxCANCEL | wxICON_QUESTION, this) )
     {
         case wxYES:
                           wxYES_NO | wxCANCEL | wxICON_QUESTION, this) )
     {
         case wxYES:


@@ -727,15 +952,20 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
 
     if ( sync )
     {
 
     if ( sync )
     {

+        wxLogStatus("\"%s\" is running please wait...", cmd);
+
+        wxStopWatch sw;
+

         wxArrayString output, errors;
         int code = wxExecute(cmd, output, errors);
         wxArrayString output, errors;
         int code = wxExecute(cmd, output, errors);

-        wxLogStatus(_T("command '%s' terminated with exit code %d."),
-                    cmd.c_str(), code);
+
+        wxLogStatus("Command \"%s\" terminated after %ldms; exit code %d.",
+                    cmd, sw.Time(), code);

 
         if ( code != -1 )
         {
 
         if ( code != -1 )
         {

-            ShowOutput(cmd, output, _T("Output"));
-            ShowOutput(cmd, errors, _T("Errors"));
+            ShowOutput(cmd, output, wxT("Output"));
+            ShowOutput(cmd, errors, wxT("Errors"));

         }
     }
     else // async exec
         }
     }
     else // async exec


@@ -743,13 +973,13 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
         MyPipedProcess *process = new MyPipedProcess(this, cmd);
         if ( !wxExecute(cmd, wxEXEC_ASYNC, process) )
         {
         MyPipedProcess *process = new MyPipedProcess(this, cmd);
         if ( !wxExecute(cmd, wxEXEC_ASYNC, process) )
         {

-            wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
+            wxLogError(wxT("Execution of '%s' failed."), cmd.c_str());

 
             delete process;
         }
         else
         {
 
             delete process;
         }
         else
         {

-            AddAsyncProcess(process);
+            AddPipedProcess(process);

         }
     }
 
         }
     }
 


@@ -759,16 +989,16 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
 void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event))
 {
     if ( !m_cmdLast )
 void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event))
 {
     if ( !m_cmdLast )

-        m_cmdLast = _T("tr [a-z] [A-Z]");
+        m_cmdLast = wxT("tr [a-z] [A-Z]");

 
 

-    wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+    wxString cmd = wxGetTextFromUser(wxT("Enter the command: "),

                                      DIALOG_TITLE,
                                      m_cmdLast);
 
     if ( !cmd )
         return;
 
                                      DIALOG_TITLE,
                                      m_cmdLast);
 
     if ( !cmd )
         return;
 

-    wxString input = wxGetTextFromUser(_T("Enter the string to send to it: "),
+    wxString input = wxGetTextFromUser(wxT("Enter the string to send to it: "),

                                        DIALOG_TITLE);
     if ( !input )
         return;
                                        DIALOG_TITLE);
     if ( !input )
         return;


@@ -778,13 +1008,13 @@ void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event))
     long pid = wxExecute(cmd, wxEXEC_ASYNC, process);
     if ( pid )
     {
     long pid = wxExecute(cmd, wxEXEC_ASYNC, process);
     if ( pid )
     {

-        wxLogStatus( _T("Process %ld (%s) launched."), pid, cmd.c_str() );
+        wxLogStatus(wxT("Process %ld (%s) launched."), pid, cmd.c_str());

 
 

-        AddAsyncProcess(process);
+        AddPipedProcess(process);

     }
     else
     {
     }
     else
     {

-        wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
+        wxLogError(wxT("Execution of '%s' failed."), cmd.c_str());

 
         delete process;
     }
 
         delete process;
     }


@@ -794,7 +1024,7 @@ void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnPOpen(wxCommandEvent& WXUNUSED(event))
 {
 
 void MyFrame::OnPOpen(wxCommandEvent& WXUNUSED(event))
 {

-    wxString cmd = wxGetTextFromUser(_T("Enter the command to launch: "),
+    wxString cmd = wxGetTextFromUser(wxT("Enter the command to launch: "),

                                      DIALOG_TITLE,
                                      m_cmdLast);
     if ( cmd.empty() )
                                      DIALOG_TITLE,
                                      m_cmdLast);
     if ( cmd.empty() )


@@ -803,63 +1033,71 @@ void MyFrame::OnPOpen(wxCommandEvent& WXUNUSED(event))
     wxProcess *process = wxProcess::Open(cmd);
     if ( !process )
     {
     wxProcess *process = wxProcess::Open(cmd);
     if ( !process )
     {

-        wxLogError(_T("Failed to launch the command."));
+        wxLogError(wxT("Failed to launch the command."));

         return;
     }
 
         return;
     }
 

-    wxLogVerbose(_T("PID of the new process: %ld"), process->GetPid());
+    wxLogVerbose(wxT("PID of the new process: %ld"), process->GetPid());

 
     wxOutputStream *out = process->GetOutputStream();
     if ( !out )
     {
 
     wxOutputStream *out = process->GetOutputStream();
     if ( !out )
     {

-        wxLogError(_T("Failed to connect to child stdin"));
+        wxLogError(wxT("Failed to connect to child stdin"));

         return;
     }
 
     wxInputStream *in = process->GetInputStream();
     if ( !in )
     {
         return;
     }
 
     wxInputStream *in = process->GetInputStream();
     if ( !in )
     {

-        wxLogError(_T("Failed to connect to child stdout"));
+        wxLogError(wxT("Failed to connect to child stdout"));

         return;
     }
 
     new MyPipeFrame(this, cmd, process);
 }
 
         return;
     }
 
     new MyPipeFrame(this, cmd, process);
 }
 

-void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event))
-{
-    static wxString s_filename;
+static wxString gs_lastFile;

 
 

+static bool AskUserForFileName()
+{

     wxString filename;
 
 #if wxUSE_FILEDLG
     wxString filename;
 
 #if wxUSE_FILEDLG

-    filename = wxLoadFileSelector(_T("any file"), NULL, s_filename, this);
+    filename = wxLoadFileSelector(wxT("any"), wxEmptyString, gs_lastFile);

 #else // !wxUSE_FILEDLG
 #else // !wxUSE_FILEDLG

-    filename = wxGetTextFromUser(_T("Enter the file name"), _T("exec sample"),
-                                 s_filename, this);
+    filename = wxGetTextFromUser(wxT("Enter the file name"), wxT("exec sample"),
+                                 gs_lastFile);

 #endif // wxUSE_FILEDLG/!wxUSE_FILEDLG
 
     if ( filename.empty() )
 #endif // wxUSE_FILEDLG/!wxUSE_FILEDLG
 
     if ( filename.empty() )

-        return;
+        return false;

 
 

-    s_filename = filename;
+    gs_lastFile = filename;
+
+    return true;
+}

 
 

-    wxString ext = filename.AfterFirst(_T('.'));
+void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event))
+{
+    if ( !AskUserForFileName() )
+        return;
+
+    wxString ext = gs_lastFile.AfterLast(wxT('.'));

     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
     if ( !ft )
     {
     wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
     if ( !ft )
     {

-        wxLogError(_T("Impossible to determine the file type for extension '%s'"),
+        wxLogError(wxT("Impossible to determine the file type for extension '%s'"),

                    ext.c_str());
         return;
     }
 
     wxString cmd;
     bool ok = ft->GetOpenCommand(&cmd,
                    ext.c_str());
         return;
     }
 
     wxString cmd;
     bool ok = ft->GetOpenCommand(&cmd,

-                                 wxFileType::MessageParameters(filename));
+                                 wxFileType::MessageParameters(gs_lastFile));

     delete ft;
     if ( !ok )
     {
     delete ft;
     if ( !ok )
     {

-        wxLogError(_T("Impossible to find out how to open files of extension '%s'"),
+        wxLogError(wxT("Impossible to find out how to open files of extension '%s'"),

                    ext.c_str());
         return;
     }
                    ext.c_str());
         return;
     }


@@ -867,25 +1105,73 @@ void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event))
     DoAsyncExec(cmd);
 }
 
     DoAsyncExec(cmd);
 }
 

+void MyFrame::OnShowCommandForExt(wxCommandEvent& WXUNUSED(event))
+{
+    static wxString s_ext;
+
+    wxString ext = wxGetTextFromUser
+                   (
+                    "Enter the extension without leading dot",
+                    "Exec sample",
+                    s_ext,
+                    this
+                   );
+    if ( ext.empty() )
+        return;
+
+    s_ext = ext;
+
+    wxScopedPtr<wxFileType>
+        ft(wxTheMimeTypesManager->GetFileTypeFromExtension(ext));
+    if ( !ft )
+    {
+        wxLogError("Information for extension \"%s\" not found", ext);
+        return;
+    }
+
+    const wxString cmd = ft->GetOpenCommand("file." + ext);
+    if ( cmd.empty() )
+    {
+        wxLogWarning("Open command for extension \"%s\" not defined.", ext);
+        return;
+    }
+
+    wxLogMessage("Open command for files of extension \"%s\" is\n%s",
+                 ext, cmd);
+}
+
+void MyFrame::OnFileLaunch(wxCommandEvent& WXUNUSED(event))
+{
+    if ( !AskUserForFileName() )
+        return;
+
+    if ( !wxLaunchDefaultApplication(gs_lastFile) )
+    {
+        wxLogError("Opening \"%s\" in default application failed.", gs_lastFile);
+    }
+}
+

 void MyFrame::OnOpenURL(wxCommandEvent& WXUNUSED(event))
 {
 void MyFrame::OnOpenURL(wxCommandEvent& WXUNUSED(event))
 {

-    static wxString s_filename(_T("http://www.wxwidgets.org/"));
+    static wxString s_url(wxT("http://www.wxwidgets.org/"));

 
     wxString filename = wxGetTextFromUser
                         (
 
     wxString filename = wxGetTextFromUser
                         (

-                            _T("Enter the URL"),
-                            _T("exec sample"),
-                            s_filename,
+                            wxT("Enter the URL"),
+                            wxT("exec sample"),
+                            s_url,

                             this
                         );
 
     if ( filename.empty() )
         return;
 
                             this
                         );
 
     if ( filename.empty() )
         return;
 

-    s_filename = filename;
+    s_url = filename;

 
 

-    if ( !wxLaunchDefaultBrowser(s_filename) )
-        wxLogError(_T("Failed to open URL \"%s\""), s_filename.c_str());
+    if ( !wxLaunchDefaultBrowser(s_url) )
+    {
+        wxLogError(wxT("Failed to open URL \"%s\""), s_url.c_str());
+    }

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -896,20 +1182,20 @@ void MyFrame::OnOpenURL(wxCommandEvent& WXUNUSED(event))
 
 bool MyFrame::GetDDEServer()
 {
 
 bool MyFrame::GetDDEServer()
 {

-    wxString server = wxGetTextFromUser(_T("Server to connect to:"),
+    wxString server = wxGetTextFromUser(wxT("Server to connect to:"),

                                         DIALOG_TITLE, m_server);
     if ( !server )
         return false;
 
     m_server = server;
 
                                         DIALOG_TITLE, m_server);
     if ( !server )
         return false;
 
     m_server = server;
 

-    wxString topic = wxGetTextFromUser(_T("DDE topic:"), DIALOG_TITLE, m_topic);
+    wxString topic = wxGetTextFromUser(wxT("DDE topic:"), DIALOG_TITLE, m_topic);

     if ( !topic )
         return false;
 
     m_topic = topic;
 
     if ( !topic )
         return false;
 
     m_topic = topic;
 

-    wxString cmd = wxGetTextFromUser(_T("DDE command:"), DIALOG_TITLE, m_cmdDde);
+    wxString cmd = wxGetTextFromUser(wxT("DDE command:"), DIALOG_TITLE, m_cmdDde);

     if ( !cmd )
         return false;
 
     if ( !cmd )
         return false;
 


@@ -927,19 +1213,19 @@ void MyFrame::OnDDEExec(wxCommandEvent& WXUNUSED(event))
     wxConnectionBase *conn = client.MakeConnection(wxEmptyString, m_server, m_topic);
     if ( !conn )
     {
     wxConnectionBase *conn = client.MakeConnection(wxEmptyString, m_server, m_topic);
     if ( !conn )
     {

-        wxLogError(_T("Failed to connect to the DDE server '%s'."),
+        wxLogError(wxT("Failed to connect to the DDE server '%s'."),

                    m_server.c_str());
     }
     else
     {
         if ( !conn->Execute(m_cmdDde) )
         {
                    m_server.c_str());
     }
     else
     {
         if ( !conn->Execute(m_cmdDde) )
         {

-            wxLogError(_T("Failed to execute command '%s' via DDE."),
+            wxLogError(wxT("Failed to execute command '%s' via DDE."),

                        m_cmdDde.c_str());
         }
         else
         {
                        m_cmdDde.c_str());
         }
         else
         {

-            wxLogStatus(_T("Successfully executed DDE command"));
+            wxLogStatus(wxT("Successfully executed DDE command"));

         }
     }
 }
         }
     }
 }


@@ -953,19 +1239,19 @@ void MyFrame::OnDDERequest(wxCommandEvent& WXUNUSED(event))
     wxConnectionBase *conn = client.MakeConnection(wxEmptyString, m_server, m_topic);
     if ( !conn )
     {
     wxConnectionBase *conn = client.MakeConnection(wxEmptyString, m_server, m_topic);
     if ( !conn )
     {

-        wxLogError(_T("Failed to connect to the DDE server '%s'."),
+        wxLogError(wxT("Failed to connect to the DDE server '%s'."),

                    m_server.c_str());
     }
     else
     {
         if ( !conn->Request(m_cmdDde) )
         {
                    m_server.c_str());
     }
     else
     {
         if ( !conn->Request(m_cmdDde) )
         {

-            wxLogError(_T("Failed to  send request '%s' via DDE."),
+            wxLogError(wxT("Failed to  send request '%s' via DDE."),

                        m_cmdDde.c_str());
         }
         else
         {
                        m_cmdDde.c_str());
         }
         else
         {

-            wxLogStatus(_T("Successfully sent DDE request."));
+            wxLogStatus(wxT("Successfully sent DDE request."));

         }
     }
 }
         }
     }
 }


@@ -989,16 +1275,54 @@ void MyFrame::OnIdle(wxIdleEvent& event)
     }
 }
 
     }
 }
 

-void MyFrame::OnTimer(wxTimerEvent& WXUNUSED(event))
+void MyFrame::OnIdleTimer(wxTimerEvent& WXUNUSED(event))

 {
     wxWakeUpIdle();
 }
 
 {
     wxWakeUpIdle();
 }
 

+void MyFrame::OnBgTimer(wxTimerEvent& WXUNUSED(event))
+{
+    static unsigned long s_ticks = 0;
+    SetStatusText(wxString::Format("%lu ticks", s_ticks++), 1);
+}
+

 void MyFrame::OnProcessTerminated(MyPipedProcess *process)
 {
 void MyFrame::OnProcessTerminated(MyPipedProcess *process)
 {

-    RemoveAsyncProcess(process);
+    RemovePipedProcess(process);
+}
+
+void MyFrame::OnAsyncTermination(MyProcess *process)
+{
+    m_allAsync.Remove(process);
+
+    delete process;

 }
 
 }
 

+void MyFrame::AddPipedProcess(MyPipedProcess *process)
+{
+    if ( m_running.IsEmpty() )
+    {
+        // we want to start getting the timer events to ensure that a
+        // steady stream of idle events comes in -- otherwise we
+        // wouldn't be able to poll the child process input
+        m_timerIdleWakeUp.Start(100);
+    }
+    //else: the timer is already running
+
+    m_running.Add(process);
+    m_allAsync.Add(process);
+}
+
+void MyFrame::RemovePipedProcess(MyPipedProcess *process)
+{
+    m_running.Remove(process);
+
+    if ( m_running.IsEmpty() )
+    {
+        // we don't need to get idle events all the time any more
+        m_timerIdleWakeUp.Stop();
+    }
+}

 
 void MyFrame::ShowOutput(const wxString& cmd,
                          const wxArrayString& output,
 
 void MyFrame::ShowOutput(const wxString& cmd,
                          const wxArrayString& output,


@@ -1008,7 +1332,7 @@ void MyFrame::ShowOutput(const wxString& cmd,
     if ( !count )
         return;
 
     if ( !count )
         return;
 

-    m_lbox->Append(wxString::Format(_T("--- %s of '%s' ---"),
+    m_lbox->Append(wxString::Format(wxT("--- %s of '%s' ---"),

                                     title.c_str(), cmd.c_str()));
 
     for ( size_t n = 0; n < count; n++ )
                                     title.c_str(), cmd.c_str()));
 
     for ( size_t n = 0; n < count; n++ )


@@ -1016,7 +1340,7 @@ void MyFrame::ShowOutput(const wxString& cmd,
         m_lbox->Append(output[n]);
     }
 
         m_lbox->Append(output[n]);
     }
 

-    m_lbox->Append(wxString::Format(_T("--- End of %s ---"),
+    m_lbox->Append(wxString::Format(wxT("--- End of %s ---"),

                                     title.Lower().c_str()));
 }
 
                                     title.Lower().c_str()));
 }
 


@@ -1026,11 +1350,10 @@ void MyFrame::ShowOutput(const wxString& cmd,
 
 void MyProcess::OnTerminate(int pid, int status)
 {
 
 void MyProcess::OnTerminate(int pid, int status)
 {

-    wxLogStatus(m_parent, _T("Process %u ('%s') terminated with exit code %d."),
+    wxLogStatus(m_parent, wxT("Process %u ('%s') terminated with exit code %d."),

                 pid, m_cmd.c_str(), status);
 
                 pid, m_cmd.c_str(), status);
 

-    // we're not needed any more
-    delete this;
+    m_parent->OnAsyncTermination(this);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -1047,7 +1370,7 @@ bool MyPipedProcess::HasInput()
 
         // this assumes that the output is always line buffered
         wxString msg;
 
         // this assumes that the output is always line buffered
         wxString msg;

-        msg << m_cmd << _T(" (stdout): ") << tis.ReadLine();
+        msg << m_cmd << wxT(" (stdout): ") << tis.ReadLine();

 
         m_parent->GetLogListBox()->Append(msg);
 
 
         m_parent->GetLogListBox()->Append(msg);
 


@@ -1060,7 +1383,7 @@ bool MyPipedProcess::HasInput()
 
         // this assumes that the output is always line buffered
         wxString msg;
 
         // this assumes that the output is always line buffered
         wxString msg;

-        msg << m_cmd << _T(" (stderr): ") << tis.ReadLine();
+        msg << m_cmd << wxT(" (stderr): ") << tis.ReadLine();

 
         m_parent->GetLogListBox()->Append(msg);
 
 
         m_parent->GetLogListBox()->Append(msg);
 


@@ -1137,13 +1460,13 @@ MyPipeFrame::MyPipeFrame(wxFrame *parent,
 
     wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL);
     sizerBtns->
 
     wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL);
     sizerBtns->

-        Add(new wxButton(panel, Exec_Btn_Send, _T("&Send")), 0, wxALL, 5);
+        Add(new wxButton(panel, Exec_Btn_Send, wxT("&Send")), 0, wxALL, 5);

     sizerBtns->
     sizerBtns->

-        Add(new wxButton(panel, Exec_Btn_SendFile, _T("&File...")), 0, wxALL, 5);
+        Add(new wxButton(panel, Exec_Btn_SendFile, wxT("&File...")), 0, wxALL, 5);

     sizerBtns->
     sizerBtns->

-        Add(new wxButton(panel, Exec_Btn_Get, _T("&Get")), 0, wxALL, 5);
+        Add(new wxButton(panel, Exec_Btn_Get, wxT("&Get")), 0, wxALL, 5);

     sizerBtns->
     sizerBtns->

-        Add(new wxButton(panel, Exec_Btn_Close, _T("&Close")), 0, wxALL, 5);
+        Add(new wxButton(panel, Exec_Btn_Close, wxT("&Close")), 0, wxALL, 5);

 
     sizerTop->Add(sizerBtns, 0, wxCENTRE | wxALL, 5);
     sizerTop->Add(m_textIn, 1, wxGROW | wxALL, 5);
 
     sizerTop->Add(sizerBtns, 0, wxCENTRE | wxALL, 5);
     sizerTop->Add(m_textIn, 1, wxGROW | wxALL, 5);


@@ -1158,11 +1481,11 @@ MyPipeFrame::MyPipeFrame(wxFrame *parent,
 void MyPipeFrame::OnBtnSendFile(wxCommandEvent& WXUNUSED(event))
 {
 #if wxUSE_FILEDLG
 void MyPipeFrame::OnBtnSendFile(wxCommandEvent& WXUNUSED(event))
 {
 #if wxUSE_FILEDLG

-    wxFileDialog filedlg(this, _T("Select file to send"));
+    wxFileDialog filedlg(this, wxT("Select file to send"));

     if ( filedlg.ShowModal() != wxID_OK )
         return;
 
     if ( filedlg.ShowModal() != wxID_OK )
         return;
 

-    wxFFile file(filedlg.GetFilename(), _T("r"));
+    wxFFile file(filedlg.GetFilename(), wxT("r"));

     wxString data;
     if ( !file.IsOpened() || !file.ReadAll(&data) )
         return;
     wxString data;
     if ( !file.IsOpened() || !file.ReadAll(&data) )
         return;


@@ -1200,8 +1523,8 @@ void MyPipeFrame::DoGetFromStream(wxTextCtrl *text, wxInputStream& in)
 {
     while ( in.CanRead() )
     {
 {
     while ( in.CanRead() )
     {

-        wxChar buffer[4096];
-        buffer[in.Read(buffer, WXSIZEOF(buffer) - 1).LastRead()] = _T('\0');
+        char buffer[4096];
+        buffer[in.Read(buffer, WXSIZEOF(buffer) - 1).LastRead()] = '\0';

 
         text->AppendText(buffer);
     }
 
         text->AppendText(buffer);
     }


@@ -1247,10 +1570,9 @@ void MyPipeFrame::OnProcessTerm(wxProcessEvent& WXUNUSED(event))
 {
     DoGet();
 
 {
     DoGet();
 

-    delete m_process;
-    m_process = NULL;
+    wxDELETE(m_process);

 
 

-    wxLogWarning(_T("The other process has terminated, closing"));
+    wxLogWarning(wxT("The other process has terminated, closing"));

 
     DisableInput();
     DisableOutput();
 
     DisableInput();
     DisableOutput();