X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bd0b594dff4bb100e3cdc08578ffa88874511eb2..6d3a0824651e83f7c95edb205fcc7ca96ff22011:/samples/exec/exec.cpp diff --git a/samples/exec/exec.cpp b/samples/exec/exec.cpp index 932674772d..a1e6531af8 100644 --- a/samples/exec/exec.cpp +++ b/samples/exec/exec.cpp @@ -53,6 +53,7 @@ #include "wx/numdlg.h" #include "wx/textdlg.h" #include "wx/ffile.h" +#include "wx/stopwatch.h" #include "wx/process.h" @@ -81,14 +82,18 @@ public: // 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: - // ctor(s) + // ctor and dtor MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size); + virtual ~MyFrame(); // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); @@ -97,6 +102,9 @@ public: void OnClear(wxCommandEvent& event); + void OnBeginBusyCursor(wxCommandEvent& event); + void OnEndBusyCursor(wxCommandEvent& event); + void OnSyncExec(wxCommandEvent& event); void OnSyncNoEventsExec(wxCommandEvent& event); void OnAsyncExec(wxCommandEvent& event); @@ -107,18 +115,25 @@ public: void OnPOpen(wxCommandEvent& event); void OnFileExec(wxCommandEvent& event); + void OnFileLaunch(wxCommandEvent& event); void OnOpenURL(wxCommandEvent& event); 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; } + // 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, @@ -126,30 +141,11 @@ private: void DoAsyncExec(const wxString& cmd); - 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 - - 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; @@ -171,11 +167,19 @@ private: 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; + // 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() }; @@ -296,22 +300,29 @@ private: // IDs for the controls and the menu commands enum { + // timer ids + Exec_TimerIdle = 10, + Exec_TimerBg, + // menu items Exec_Quit = 100, Exec_Kill, Exec_ClearLog, + Exec_BeginBusyCursor, + Exec_EndBusyCursor, Exec_SyncExec = 200, Exec_SyncNoEventsExec, Exec_AsyncExec, Exec_Shell, Exec_POpen, Exec_OpenFile, + Exec_LaunchFile, Exec_OpenURL, Exec_DDEExec, Exec_DDERequest, Exec_Redirect, Exec_Pipe, - Exec_About = 300, + Exec_About = wxID_ABOUT, // control ids Exec_Btn_Send = 1000, @@ -333,6 +344,8 @@ 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_BeginBusyCursor, MyFrame::OnBeginBusyCursor) + EVT_MENU(Exec_EndBusyCursor, MyFrame::OnEndBusyCursor) EVT_MENU(Exec_SyncExec, MyFrame::OnSyncExec) EVT_MENU(Exec_SyncNoEventsExec, MyFrame::OnSyncNoEventsExec) @@ -344,6 +357,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Exec_POpen, MyFrame::OnPOpen) EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec) + EVT_MENU(Exec_LaunchFile, MyFrame::OnFileLaunch) EVT_MENU(Exec_OpenURL, MyFrame::OnOpenURL) #ifdef __WINDOWS__ @@ -355,7 +369,8 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame) 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) @@ -417,7 +432,8 @@ bool MyApp::OnInit() // 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) { m_pidLast = 0; @@ -432,9 +448,12 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) 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"), + menuFile->Append(Exec_ClearLog, _T("&Clear log\tCtrl-L"), _T("Clear the log window")); menuFile->AppendSeparator(); + menuFile->Append(Exec_BeginBusyCursor, _T("Show &busy cursor\tCtrl-C")); + menuFile->Append(Exec_EndBusyCursor, _T("Show &normal cursor\tShift-Ctrl-C")); + menuFile->AppendSeparator(); menuFile->Append(Exec_Quit, _T("E&xit\tAlt-X"), _T("Quit this program")); wxMenu *execMenu = new wxMenu; @@ -457,6 +476,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) execMenu->AppendSeparator(); execMenu->Append(Exec_OpenFile, _T("Open &file...\tCtrl-F"), _T("Launch the command to open this kind of files")); + execMenu->Append(Exec_LaunchFile, _T("La&unch file...\tShift-Ctrl-F"), + _T("Launch the default application associated with the file")); execMenu->Append(Exec_OpenURL, _T("Open &URL...\tCtrl-U"), _T("Launch the default browser with the given URL")); #ifdef __WINDOWS__ @@ -486,9 +507,22 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) #if wxUSE_STATUSBAR // create a status bar just for fun (by default with 1 pane only) - CreateStatusBar(); + CreateStatusBar(2); SetStatusText(_T("Welcome to wxWidgets exec sample!")); #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]; + } } // ---------------------------------------------------------------------------- @@ -506,6 +540,16 @@ void MyFrame::OnClear(wxCommandEvent& WXUNUSED(event)) m_lbox->Clear(); } +void MyFrame::OnBeginBusyCursor(wxCommandEvent& WXUNUSED(event)) +{ + wxBeginBusyCursor(); +} + +void MyFrame::OnEndBusyCursor(wxCommandEvent& WXUNUSED(event)) +{ + wxEndBusyCursor(); +} + void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxMessageBox(_T("Exec wxWidgets Sample\n(c) 2000-2002 Vadim Zeitlin"), @@ -617,20 +661,23 @@ void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event)) void MyFrame::DoAsyncExec(const wxString& cmd) { - wxProcess *process = new MyProcess(this, cmd); + MyProcess * const process = new MyProcess(this, cmd); m_pidLast = wxExecute(cmd, wxEXEC_ASYNC, process); if ( !m_pidLast ) { - wxLogError( _T("Execution of '%s' failed."), cmd.c_str() ); + wxLogError(_T("Execution of '%s' failed."), cmd.c_str()); delete process; } else { - wxLogStatus( _T("Process %ld (%s) launched."), - m_pidLast, cmd.c_str() ); + wxLogStatus(_T("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); } } @@ -701,6 +748,15 @@ void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) { + if ( !m_cmdLast ) + { +#ifdef __WXMSW__ + m_cmdLast = "type Makefile.in"; +#else + m_cmdLast = "cat -n Makefile"; +#endif + } + wxString cmd = wxGetTextFromUser(_T("Enter the command: "), DIALOG_TITLE, m_cmdLast); @@ -727,10 +783,15 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) if ( sync ) { + wxLogStatus("\"%s\" is running please wait...", cmd); + + wxStopWatch sw; + 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 ) { @@ -749,7 +810,7 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) } else { - AddAsyncProcess(process); + AddPipedProcess(process); } } @@ -778,9 +839,9 @@ void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event)) long pid = wxExecute(cmd, wxEXEC_ASYNC, process); if ( pid ) { - wxLogStatus( _T("Process %ld (%s) launched."), pid, cmd.c_str() ); + wxLogStatus(_T("Process %ld (%s) launched."), pid, cmd.c_str()); - AddAsyncProcess(process); + AddPipedProcess(process); } else { @@ -826,25 +887,33 @@ void MyFrame::OnPOpen(wxCommandEvent& WXUNUSED(event)) 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 - filename = wxLoadFileSelector(_T("any file"), wxEmptyString, s_filename, this); + filename = wxLoadFileSelector(_T("any"), wxEmptyString, gs_lastFile); #else // !wxUSE_FILEDLG filename = wxGetTextFromUser(_T("Enter the file name"), _T("exec sample"), - s_filename, this); + gs_lastFile); #endif // wxUSE_FILEDLG/!wxUSE_FILEDLG if ( filename.empty() ) - return; + return false; + + gs_lastFile = filename; + + return true; +} - s_filename = filename; +void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event)) +{ + if ( !AskUserForFileName() ) + return; - wxString ext = filename.AfterFirst(_T('.')); + wxString ext = gs_lastFile.AfterLast(_T('.')); wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext); if ( !ft ) { @@ -855,7 +924,7 @@ void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event)) wxString cmd; bool ok = ft->GetOpenCommand(&cmd, - wxFileType::MessageParameters(filename)); + wxFileType::MessageParameters(gs_lastFile)); delete ft; if ( !ok ) { @@ -867,25 +936,36 @@ void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event)) DoAsyncExec(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)) { - static wxString s_filename(_T("http://www.wxwidgets.org/")); + static wxString s_url(_T("http://www.wxwidgets.org/")); wxString filename = wxGetTextFromUser ( _T("Enter the URL"), _T("exec sample"), - s_filename, + s_url, 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(_T("Failed to open URL \"%s\""), s_url.c_str()); } // ---------------------------------------------------------------------------- @@ -989,16 +1069,54 @@ void MyFrame::OnIdle(wxIdleEvent& event) } } -void MyFrame::OnTimer(wxTimerEvent& WXUNUSED(event)) +void MyFrame::OnIdleTimer(wxTimerEvent& WXUNUSED(event)) { 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) { - 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, @@ -1029,8 +1147,7 @@ void MyProcess::OnTerminate(int pid, int status) wxLogStatus(m_parent, _T("Process %u ('%s') terminated with exit code %d."), pid, m_cmd.c_str(), status); - // we're not needed any more - delete this; + m_parent->OnAsyncTermination(this); } // ----------------------------------------------------------------------------