#include "wx/app.h"
#include "wx/frame.h"
#include "wx/utils.h"
+ #include "wx/menu.h"
+ #include "wx/msgdlg.h"
+ #include "wx/textdlg.h"
+ #include "wx/listbox.h"
+ #include "wx/filedlg.h"
+ #include "wx/choicdlg.h"
#endif
+#include "wx/txtstrm.h"
+
#include "wx/process.h"
+#include "wx/mimetype.h"
+
+#ifdef __WINDOWS__
+ #include "wx/dde.h"
+#endif // __WINDOWS__
+
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
virtual bool OnInit();
};
+// Define an array of process pointers used by MyFrame
+class MyPipedProcess;
+WX_DEFINE_ARRAY(MyPipedProcess *, MyProcessesArray);
+
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
+ void OnKill(wxCommandEvent& event);
+
+ void OnClear(wxCommandEvent& event);
+
void OnSyncExec(wxCommandEvent& event);
void OnAsyncExec(wxCommandEvent& event);
void OnShell(wxCommandEvent& event);
+ void OnExecWithRedirect(wxCommandEvent& event);
+ void OnExecWithPipe(wxCommandEvent& event);
+
+ void OnFileExec(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
+ // polling output of async processes
+ void OnIdle(wxIdleEvent& event);
+
+ // for MyPipedProcess
+ void OnProcessTerminated(MyPipedProcess *process);
+ wxListBox *GetLogListBox() const { return m_lbox; }
+
private:
+ void ShowOutput(const wxString& cmd,
+ const wxArrayString& output,
+ const wxString& title);
+
+ void DoAsyncExec(const wxString& cmd);
+
+ // the PID of the last process we launched asynchronously
+ int m_pidLast;
+
+ // last command we executed
wxString m_cmdLast;
+#ifdef __WINDOWS__
+ void OnDDEExec(wxCommandEvent& event);
+ void OnDDERequest(wxCommandEvent& event);
+
+ bool GetDDEServer();
+
+ // last params of a DDE transaction
+ wxString m_server,
+ m_topic,
+ m_cmdDde;
+#endif // __WINDOWS__
+
+ wxListBox *m_lbox;
+
+ MyProcessesArray m_running;
+
// any class wishing to process wxWindows events must use this macro
DECLARE_EVENT_TABLE()
};
class MyProcess : public wxProcess
{
public:
- MyProcess(wxFrame *parent, const wxString& cmd)
+ MyProcess(MyFrame *parent, const wxString& cmd)
: wxProcess(parent), m_cmd(cmd)
{
m_parent = parent;
// cases
virtual void OnTerminate(int pid, int status);
-private:
- wxFrame *m_parent;
+protected:
+ MyFrame *m_parent;
wxString m_cmd;
};
+// A specialization of MyProcess for redirecting the output
+class MyPipedProcess : public MyProcess
+{
+public:
+ MyPipedProcess(MyFrame *parent, const wxString& cmd)
+ : MyProcess(parent, cmd)
+ {
+ Redirect();
+ }
+
+ virtual void OnTerminate(int pid, int status);
+
+ virtual bool HasInput();
+};
+
+// A version of MyPipedProcess which also sends input to the stdin of the
+// child process
+class MyPipedProcess2 : public MyPipedProcess
+{
+public:
+ MyPipedProcess2(MyFrame *parent, const wxString& cmd, const wxString& input)
+ : MyPipedProcess(parent, cmd), m_input(input)
+ {
+ }
+
+ virtual bool HasInput();
+
+private:
+ wxString m_input;
+};
+
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
{
// menu items
Exec_Quit = 100,
+ Exec_Kill,
+ Exec_ClearLog,
Exec_SyncExec = 200,
Exec_AsyncExec,
Exec_Shell,
+ Exec_OpenFile,
+ Exec_DDEExec,
+ Exec_DDERequest,
+ Exec_Redirect,
+ Exec_Pipe,
Exec_About = 300
};
+static const wxChar *DIALOG_TITLE = _T("Exec sample");
+
// ----------------------------------------------------------------------------
// event tables and other macros for wxWindows
// ----------------------------------------------------------------------------
// simple menu events like this the static method is much simpler.
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_SyncExec, MyFrame::OnSyncExec)
EVT_MENU(Exec_AsyncExec, MyFrame::OnAsyncExec)
EVT_MENU(Exec_Shell, MyFrame::OnShell)
+ EVT_MENU(Exec_Redirect, MyFrame::OnExecWithRedirect)
+ EVT_MENU(Exec_Pipe, MyFrame::OnExecWithPipe)
+
+ EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec)
+#ifdef __WINDOWS__
+ EVT_MENU(Exec_DDEExec, MyFrame::OnDDEExec)
+ EVT_MENU(Exec_DDERequest, MyFrame::OnDDERequest)
+#endif // __WINDOWS__
+
EVT_MENU(Exec_About, MyFrame::OnAbout)
+
+ EVT_IDLE(MyFrame::OnIdle)
END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWindows to create
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
: wxFrame((wxFrame *)NULL, -1, title, pos, size)
{
+ m_pidLast = 0;
+
#ifdef __WXMAC__
// we need this in order to allow the about menu relocation, since ABOUT is
// not the default id of the about menu
wxApp::s_macAboutMenuItemId = Exec_About;
#endif
- // set the frame icon
- SetIcon(wxICON(mondrian));
-
// create a menu bar
wxMenu *menuFile = new wxMenu(_T(""), wxMENU_TEAROFF);
+ menuFile->Append(Exec_Kill, _T("&Kill process...\tCtrl-K"),
+ _T("Kill a process by PID"));
+ menuFile->AppendSeparator();
+ menuFile->Append(Exec_ClearLog, _T("&Clear log\tCtrl-C"),
+ _T("Clear the log window"));
+ menuFile->AppendSeparator();
menuFile->Append(Exec_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
wxMenu *execMenu = new wxMenu;
_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->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...\tCtrl-P"),
+ _T("Pipe a string through a filter"));
+
+ execMenu->AppendSeparator();
+ execMenu->Append(Exec_OpenFile, _T("Open &file...\tCtrl-F"),
+ _T("Launch the command to open this kind of files"));
+#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"));
+#endif
wxMenu *helpMenu = new wxMenu(_T(""), wxMENU_TEAROFF);
helpMenu->Append(Exec_About, _T("&About...\tF1"), _T("Show about dialog"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
+ // create the listbox in which we will show misc messages as they come
+ m_lbox = new wxListBox(this, -1);
+ wxFont font(12, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL,
+ wxFONTWEIGHT_NORMAL);
+ if ( font.Ok() )
+ m_lbox->SetFont(font);
+
#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
- CreateStatusBar(2);
- SetStatusText(_T("Welcome to wxWindows!"));
+ CreateStatusBar();
+ SetStatusText(_T("Welcome to wxWindows exec sample!"));
#endif // wxUSE_STATUSBAR
}
-
-// event handlers
+// ----------------------------------------------------------------------------
+// event handlers: file and help menu
+// ----------------------------------------------------------------------------
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close(TRUE);
}
+void MyFrame::OnClear(wxCommandEvent& WXUNUSED(event))
+{
+ m_lbox->Clear();
+}
+
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
- wxMessageBox(_T("Exec sample\n© 2000 Vadim Zeitlin"),
+ wxMessageBox(_T("Exec wxWindows Sample\n© 2000-2001 Vadim Zeitlin"),
_T("About Exec"), wxOK | wxICON_INFORMATION, this);
}
+void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event))
+{
+ long pid = wxGetNumberFromUser(_T("Please specify the process to kill"),
+ _T("Enter PID:"),
+ _T("Exec question"),
+ m_pidLast,
+ // we need the full unsigned int range
+ -INT_MAX, INT_MAX,
+ this);
+ if ( pid == -1 )
+ {
+ // cancelled
+ return;
+ }
+
+ 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)"),
+ };
+
+ int sig = wxGetSingleChoiceIndex(_T("How to kill the process?"),
+ _T("Exec question"),
+ WXSIZEOF(signalNames), signalNames,
+ this);
+ switch ( sig )
+ {
+ default:
+ wxFAIL_MSG( _T("unexpected return value") );
+ // fall through
+
+ case -1:
+ // cancelled
+ return;
+
+ case wxSIGNONE:
+ case wxSIGHUP:
+ case wxSIGINT:
+ case wxSIGQUIT:
+ case wxSIGILL:
+ case wxSIGTRAP:
+ case wxSIGABRT:
+ case wxSIGEMT:
+ case wxSIGFPE:
+ case wxSIGKILL:
+ case wxSIGBUS:
+ case wxSIGSEGV:
+ case wxSIGSYS:
+ case wxSIGPIPE:
+ case wxSIGALRM:
+ case wxSIGTERM:
+ break;
+ }
+
+ if ( sig == 0 )
+ {
+ if ( wxProcess::Exists(pid) )
+ wxLogStatus(_T("Process %d is running."), pid);
+ else
+ wxLogStatus(_T("No process with pid = %d."), pid);
+ }
+ else // not SIGNONE
+ {
+ wxKillError rc = wxProcess::Kill(pid, (wxSignal)sig);
+ if ( rc == wxKILL_OK )
+ {
+ wxLogStatus(_T("Process %d killed with signal %d."), pid, sig);
+ }
+ else
+ {
+ static const wxChar *errorText[] =
+ {
+ _T(""), // no error
+ _T("signal not supported"),
+ _T("permission denied"),
+ _T("no such process"),
+ _T("unspecified error"),
+ };
+
+ wxLogStatus(_T("Failed to kill process %d with signal %d: %s"),
+ pid, sig, errorText[rc]);
+ }
+ }
+}
+
+// ----------------------------------------------------------------------------
+// event handlers: exec menu
+// ----------------------------------------------------------------------------
+
+void MyFrame::DoAsyncExec(const wxString& cmd)
+{
+ wxProcess *process = new MyProcess(this, cmd);
+ m_pidLast = wxExecute(cmd, wxEXEC_ASYNC, process);
+ if ( !m_pidLast )
+ {
+ wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
+
+ delete process;
+ }
+ else
+ {
+ wxLogStatus(_T("Process %ld (%s) launched."), m_pidLast, cmd.c_str());
+
+ m_cmdLast = cmd;
+ }
+}
+
void MyFrame::OnSyncExec(wxCommandEvent& WXUNUSED(event))
{
wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
- _T("Exec sample"),
+ DIALOG_TITLE,
m_cmdLast);
if ( !cmd )
return;
- int code = wxExecute(cmd, TRUE /* sync */);
+ wxLogStatus(_T("'%s' is running please wait..."), cmd.c_str());
+
+ int code = wxExecute(cmd, wxEXEC_SYNC);
+
wxLogStatus(_T("Process '%s' terminated with exit code %d."),
cmd.c_str(), code);
m_cmdLast = cmd;
void MyFrame::OnAsyncExec(wxCommandEvent& WXUNUSED(event))
{
wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
- _T("Exec sample"),
+ DIALOG_TITLE,
m_cmdLast);
if ( !cmd )
return;
- wxProcess *process = new MyProcess(this, cmd);
- if ( !wxExecute(cmd, FALSE /* async */, process) )
+ DoAsyncExec(cmd);
+}
+
+void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event))
+{
+ wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+ DIALOG_TITLE,
+ m_cmdLast);
+
+ if ( !cmd )
+ return;
+
+ int code = wxShell(cmd);
+ wxLogStatus(_T("Shell command '%s' terminated with exit code %d."),
+ cmd.c_str(), code);
+ m_cmdLast = cmd;
+}
+
+void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event))
+{
+ wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+ DIALOG_TITLE,
+ m_cmdLast);
+
+ if ( !cmd )
+ return;
+
+ bool sync;
+ switch ( wxMessageBox(_T("Execute it synchronously?"),
+ _T("Exec question"),
+ wxYES_NO | wxCANCEL | wxICON_QUESTION, this) )
{
- wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
+ case wxYES:
+ sync = TRUE;
+ break;
- delete process;
+ case wxNO:
+ sync = FALSE;
+ break;
+
+ default:
+ return;
}
- else
+
+ if ( sync )
{
- m_cmdLast = cmd;
+ wxArrayString output, errors;
+ int code = wxExecute(cmd, output, errors);
+ wxLogStatus(_T("command '%s' terminated with exit code %d."),
+ cmd.c_str(), code);
+
+ if ( code != -1 )
+ {
+ ShowOutput(cmd, output, _T("Output"));
+ ShowOutput(cmd, errors, _T("Errors"));
+ }
}
+ else // async exec
+ {
+ MyPipedProcess *process = new MyPipedProcess(this, cmd);
+ if ( !wxExecute(cmd, wxEXEC_ASYNC, process) )
+ {
+ wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
+
+ delete process;
+ }
+ else
+ {
+ m_running.Add(process);
+ }
+ }
+
+ m_cmdLast = cmd;
}
-void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event))
+void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event))
{
+ if ( !m_cmdLast )
+ m_cmdLast = _T("tr [a-z] [A-Z]");
+
wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
- _T("Exec sample"),
+ DIALOG_TITLE,
m_cmdLast);
if ( !cmd )
return;
- int code = wxShell(cmd);
- wxLogStatus(_T("Shell command '%s' terminated with exit code %d."),
- cmd.c_str(), code);
+ wxString input = wxGetTextFromUser(_T("Enter the string to send to it: "),
+ DIALOG_TITLE);
+ if ( !input )
+ return;
+
+ // always execute the filter asynchronously
+ MyPipedProcess2 *process = new MyPipedProcess2(this, cmd, input);
+ int pid = wxExecute(cmd, wxEXEC_ASYNC, process);
+ if ( pid )
+ {
+ wxLogStatus(_T("Process %ld (%s) launched."), pid, cmd.c_str());
+
+ m_running.Add(process);
+ }
+ else
+ {
+ wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
+
+ delete process;
+ }
+
m_cmdLast = cmd;
}
+void MyFrame::OnFileExec(wxCommandEvent& event)
+{
+ static wxString s_filename;
+
+ wxString filename = wxLoadFileSelector(_T("file"), _T(""), s_filename);
+ if ( !filename )
+ return;
+
+ s_filename = filename;
+
+ wxString ext = filename.AfterFirst(_T('.'));
+ wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
+ if ( !ft )
+ {
+ wxLogError(_T("Impossible to determine the file type for extension '%s'"),
+ ext.c_str());
+ return;
+ }
+
+ wxString cmd;
+ bool ok = ft->GetOpenCommand(&cmd,
+ wxFileType::MessageParameters(filename, _T("")));
+ delete ft;
+ if ( !ok )
+ {
+ wxLogError(_T("Impossible to find out how to open files of extension '%s'"),
+ ext.c_str());
+ return;
+ }
+
+ DoAsyncExec(cmd);
+}
+
+// ----------------------------------------------------------------------------
+// DDE stuff
+// ----------------------------------------------------------------------------
+
+#ifdef __WINDOWS__
+
+bool MyFrame::GetDDEServer()
+{
+ wxString server = wxGetTextFromUser(_T("Server to connect to:"),
+ DIALOG_TITLE, m_server);
+ if ( !server )
+ return FALSE;
+
+ m_server = server;
+
+ wxString topic = wxGetTextFromUser(_T("DDE topic:"), DIALOG_TITLE, m_topic);
+ if ( !topic )
+ return FALSE;
+
+ m_topic = topic;
+
+ wxString cmd = wxGetTextFromUser(_T("DDE command:"), DIALOG_TITLE, m_cmdDde);
+ if ( !cmd )
+ return FALSE;
+
+ m_cmdDde = cmd;
+
+ return TRUE;
+}
+
+void MyFrame::OnDDEExec(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !GetDDEServer() )
+ return;
+
+ wxDDEClient client;
+ wxConnectionBase *conn = client.MakeConnection("", m_server, m_topic);
+ if ( !conn )
+ {
+ wxLogError(_T("Failed to connect to the DDE server '%s'."),
+ m_server.c_str());
+ }
+ else
+ {
+ if ( !conn->Execute(m_cmdDde) )
+ {
+ wxLogError(_T("Failed to execute command '%s' via DDE."),
+ m_cmdDde.c_str());
+ }
+ else
+ {
+ wxLogStatus(_T("Successfully executed DDE command"));
+ }
+ }
+}
+
+void MyFrame::OnDDERequest(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !GetDDEServer() )
+ return;
+
+ wxDDEClient client;
+ wxConnectionBase *conn = client.MakeConnection("", m_server, m_topic);
+ if ( !conn )
+ {
+ wxLogError(_T("Failed to connect to the DDE server '%s'."),
+ m_server.c_str());
+ }
+ else
+ {
+ if ( !conn->Request(m_cmdDde) )
+ {
+ wxLogError(_T("Failed to send request '%s' via DDE."),
+ m_cmdDde.c_str());
+ }
+ else
+ {
+ wxLogStatus(_T("Successfully sent DDE request."));
+ }
+ }
+}
+
+#endif // __WINDOWS__
+
+// ----------------------------------------------------------------------------
+// various helpers
+// ----------------------------------------------------------------------------
+
+// input polling
+void MyFrame::OnIdle(wxIdleEvent& event)
+{
+ size_t count = m_running.GetCount();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( m_running[n]->HasInput() )
+ {
+ event.RequestMore();
+ }
+ }
+}
+
+void MyFrame::OnProcessTerminated(MyPipedProcess *process)
+{
+ m_running.Remove(process);
+}
+
+
+void MyFrame::ShowOutput(const wxString& cmd,
+ const wxArrayString& output,
+ const wxString& title)
+{
+ size_t count = output.GetCount();
+ if ( !count )
+ return;
+
+ m_lbox->Append(wxString::Format(_T("--- %s of '%s' ---"),
+ title.c_str(), cmd.c_str()));
+
+ for ( size_t n = 0; n < count; n++ )
+ {
+ m_lbox->Append(output[n]);
+ }
+
+ m_lbox->Append(_T("--- End of output ---"));
+}
+
// ----------------------------------------------------------------------------
// MyProcess
// ----------------------------------------------------------------------------
// we're not needed any more
delete this;
}
+
+// ----------------------------------------------------------------------------
+// MyPipedProcess
+// ----------------------------------------------------------------------------
+
+bool MyPipedProcess::HasInput()
+{
+ bool hasInput = FALSE;
+
+ wxInputStream& is = *GetInputStream();
+ if ( !is.Eof() )
+ {
+ wxTextInputStream tis(is);
+
+ // this assumes that the output is always line buffered
+ wxString msg;
+ msg << m_cmd << _T(" (stdout): ") << tis.ReadLine();
+
+ m_parent->GetLogListBox()->Append(msg);
+
+ hasInput = TRUE;
+ }
+
+ wxInputStream& es = *GetErrorStream();
+ if ( !es.Eof() )
+ {
+ wxTextInputStream tis(es);
+
+ // this assumes that the output is always line buffered
+ wxString msg;
+ msg << m_cmd << _T(" (stderr): ") << tis.ReadLine();
+
+ m_parent->GetLogListBox()->Append(msg);
+
+ hasInput = TRUE;
+ }
+
+ return hasInput;
+}
+
+void MyPipedProcess::OnTerminate(int pid, int status)
+{
+ // show the rest of the output
+ while ( HasInput() )
+ ;
+
+ m_parent->OnProcessTerminated(this);
+
+ MyProcess::OnTerminate(pid, status);
+}
+
+// ----------------------------------------------------------------------------
+// MyPipedProcess2
+// ----------------------------------------------------------------------------
+
+bool MyPipedProcess2::HasInput()
+{
+ if ( !!m_input )
+ {
+ wxTextOutputStream os(*GetOutputStream());
+ os.WriteString(m_input);
+
+ CloseOutput();
+ m_input.clear();
+
+ // call us once again - may be we'll have output
+ return TRUE;
+ }
+
+ return MyPipedProcess::HasInput();
+}
projects / wxWidgets.git / blobdiff