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added a timer updating a counter in the background to be able to easily check visually whether the events are processed or not during the synchronous child proces execution

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60735 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2009-05-24 19:40:24 +00:00
parent abd694417a
commit 9cd203f776
1 changed files with 27 additions and 6 deletions
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33
samples/exec/exec.cpp
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@ -121,7 +121,7 @@ public:
void OnAbout(wxCommandEvent& event);
// polling output of async processes
void OnTimer(wxTimerEvent& event);
void OnIdleTimer(wxTimerEvent& event);
void OnIdle(wxIdleEvent& event);
// for MyPipedProcess
@ -131,6 +131,9 @@ public:
// 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,
@ -173,6 +176,10 @@ private:
// 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()
};
@ -293,6 +300,10 @@ private:
// IDs for the controls and the menu commands
enum
{
// timer ids
Exec_TimerIdle = 10,
Exec_TimerBg,
// menu items
Exec_Quit = 100,
Exec_Kill,
@ -311,7 +322,7 @@ enum
Exec_DDERequest,
Exec_Redirect,
Exec_Pipe,
Exec_About = 300,
Exec_About = wxID_ABOUT,
// control ids
Exec_Btn_Send = 1000,
@ -358,7 +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)
@ -420,7 +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;
@ -494,9 +507,11 @@ 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()
@ -1054,11 +1069,17 @@ 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)
{
RemovePipedProcess(process);