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added a stupid wxProcess::Open() test -- it can't be really used for now though

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16156 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-07-12 19:54:21 +00:00
parent 0c9c440190
commit eb671557a8
1 changed files with 154 additions and 7 deletions
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159
samples/exec/exec.cpp
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@@ -34,13 +34,20 @@
#ifndef WX_PRECOMP
#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"
#include "wx/button.h"
#include "wx/textctrl.h"
#include "wx/listbox.h"
#include "wx/sizer.h"
#endif
#include "wx/txtstrm.h"
@@ -54,7 +61,7 @@
#endif // __WINDOWS__
// ----------------------------------------------------------------------------
// private classes
// the usual application and main frame classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
@@ -94,6 +101,8 @@ public:
void OnExecWithRedirect(wxCommandEvent& event);
void OnExecWithPipe(wxCommandEvent& event);
void OnPOpen(wxCommandEvent& event);
void OnFileExec(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
@@ -138,6 +147,43 @@ private:
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// MyPipeFrame: allows the user to communicate with the child process
// ----------------------------------------------------------------------------
class MyPipeFrame : public wxFrame
{
public:
MyPipeFrame(wxFrame *parent,
const wxString& cmd,
wxProcess *process);
protected:
void OnTextEnter(wxCommandEvent& event) { DoSend(); }
void OnBtnSend(wxCommandEvent& event) { DoSend(); }
void OnBtnGet(wxCommandEvent& event) { DoGet(); }
void OnClose(wxCloseEvent& event);
void DoSend() { m_out.WriteString(m_textIn->GetValue() + '\n'); DoGet(); }
void DoGet();
private:
wxProcess *m_process;
wxTextInputStream m_in;
wxTextOutputStream m_out;
wxTextCtrl *m_textIn,
*m_textOut;
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// wxProcess-derived classes
// ----------------------------------------------------------------------------
// This is the handler for process termination events
class MyProcess : public wxProcess
{
@@ -203,12 +249,17 @@ enum
Exec_SyncExec = 200,
Exec_AsyncExec,
Exec_Shell,
Exec_POpen,
Exec_OpenFile,
Exec_DDEExec,
Exec_DDERequest,
Exec_Redirect,
Exec_Pipe,
Exec_About = 300
Exec_About = 300,
// control ids
Exec_Btn_Send = 1000,
Exec_Btn_Get
};
static const wxChar *DIALOG_TITLE = _T("Exec sample");
@@ -231,6 +282,8 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(Exec_Redirect, MyFrame::OnExecWithRedirect)
EVT_MENU(Exec_Pipe, MyFrame::OnExecWithPipe)
EVT_MENU(Exec_POpen, MyFrame::OnPOpen)
EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec)
#ifdef __WINDOWS__
@@ -243,6 +296,15 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_IDLE(MyFrame::OnIdle)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(MyPipeFrame, wxFrame)
EVT_BUTTON(Exec_Btn_Send, MyPipeFrame::OnBtnSend)
EVT_BUTTON(Exec_Btn_Get, MyPipeFrame::OnBtnGet)
EVT_TEXT_ENTER(-1, MyPipeFrame::OnTextEnter)
EVT_CLOSE(MyPipeFrame::OnClose)
END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWindows to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also declares the accessor function
@@ -311,8 +373,10 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
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"),
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->AppendSeparator();
execMenu->Append(Exec_OpenFile, _T("Open &file...\tCtrl-F"),
@@ -629,11 +693,43 @@ void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event))
m_cmdLast = cmd;
}
void MyFrame::OnPOpen(wxCommandEvent& event)
{
wxString cmd = wxGetTextFromUser(_T("Enter the command to launch: "),
DIALOG_TITLE,
m_cmdLast);
if ( cmd.empty() )
return;
wxProcess *process = wxProcess::Open(cmd);
if ( !process )
{
wxLogError(_T("Failed to launch the command."));
return;
}
wxOutputStream *out = process->GetOutputStream();
if ( !out )
{
wxLogError(_T("Failed to connect to child stdin"));
return;
}
wxInputStream *in = process->GetInputStream();
if ( !in )
{
wxLogError(_T("Failed to connect to child stdout"));
return;
}
new MyPipeFrame(this, cmd, process);
}
void MyFrame::OnFileExec(wxCommandEvent& event)
{
static wxString s_filename;
wxString filename = wxLoadFileSelector(_T("file"), _T(""), s_filename);
wxString filename = wxLoadFileSelector(_T(""), _T(""), s_filename);
if ( !filename )
return;
@@ -785,7 +881,8 @@ void MyFrame::ShowOutput(const wxString& cmd,
m_lbox->Append(output[n]);
}
m_lbox->Append(_T("--- End of output ---"));
m_lbox->Append(wxString::Format(_T("--- End of %s ---"),
title.Lower().c_str()));
}
// ----------------------------------------------------------------------------
@@ -871,3 +968,53 @@ bool MyPipedProcess2::HasInput()
return MyPipedProcess::HasInput();
}
// ============================================================================
// MyPipeFrame implementation
// ============================================================================
MyPipeFrame::MyPipeFrame(wxFrame *parent,
const wxString& cmd,
wxProcess *process)
: wxFrame(parent, -1, cmd),
m_process(process),
// in a real program we'd check that the streams are !NULL here
m_in(*process->GetInputStream()),
m_out(*process->GetOutputStream())
{
m_textIn = new wxTextCtrl(this, -1, _T(""),
wxDefaultPosition, wxDefaultSize,
wxTE_PROCESS_ENTER);
m_textOut = new wxTextCtrl(this, -1, _T(""));
m_textOut->SetEditable(FALSE);
wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
sizerTop->Add(m_textIn, 0, wxGROW | wxALL, 5);
wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL);
sizerBtns->Add(new wxButton(this, Exec_Btn_Send, _T("&Send")), 0,
wxALL, 10);
sizerBtns->Add(new wxButton(this, Exec_Btn_Get, _T("&Get")), 0,
wxALL, 10);
sizerTop->Add(sizerBtns, 0, wxCENTRE | wxALL, 5);
sizerTop->Add(m_textOut, 0, wxGROW | wxALL, 5);
SetSizer(sizerTop);
sizerTop->Fit(this);
Show();
}
void MyPipeFrame::DoGet()
{
m_textOut->SetValue(m_in.ReadLine());
}
void MyPipeFrame::OnClose(wxCloseEvent& event)
{
m_process->CloseOutput();
event.Skip();
}