// ----------------------------------------------------------------------------
#if defined(__GNUG__) && !defined(__APPLE__)
- #pragma implementation "exec.cpp"
- #pragma interface "exec.cpp"
+ #pragma implementation
+ #pragma interface
#endif
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/txtstrm.h"
#include "wx/numdlg.h"
+#include "wx/ffile.h"
#include "wx/process.h"
protected:
void OnTextEnter(wxCommandEvent& WXUNUSED(event)) { DoSend(); }
void OnBtnSend(wxCommandEvent& WXUNUSED(event)) { DoSend(); }
+ void OnBtnSendFile(wxCommandEvent& WXUNUSED(event));
void OnBtnGet(wxCommandEvent& WXUNUSED(event)) { DoGet(); }
+ void OnBtnClose(wxCommandEvent& WXUNUSED(event)) { DoClose(); }
void OnClose(wxCloseEvent& event);
void DoSend()
{
- m_out.WriteString(m_textIn->GetValue() + _T('\n'));
- m_textIn->Clear();
+ wxString s(m_textOut->GetValue());
+ s += _T('\n');
+ m_out.Write(s.c_str(), s.length());
+ m_textOut->Clear();
DoGet();
}
void DoGet();
+ void DoClose();
private:
+ void DoGetFromStream(wxTextCtrl *text, wxInputStream& in);
+ void DisableInput();
+ void DisableOutput();
+
+
wxProcess *m_process;
- wxTextInputStream m_in;
- wxTextOutputStream m_out;
+ wxOutputStream &m_out;
+ wxInputStream &m_in,
+ &m_err;
- wxTextCtrl *m_textIn,
- *m_textOut;
+ wxTextCtrl *m_textOut,
+ *m_textIn,
+ *m_textErr;
DECLARE_EVENT_TABLE()
};
// control ids
Exec_Btn_Send = 1000,
- Exec_Btn_Get
+ Exec_Btn_SendFile,
+ Exec_Btn_Get,
+ Exec_Btn_Close
};
static const wxChar *DIALOG_TITLE = _T("Exec sample");
BEGIN_EVENT_TABLE(MyPipeFrame, wxFrame)
EVT_BUTTON(Exec_Btn_Send, MyPipeFrame::OnBtnSend)
+ EVT_BUTTON(Exec_Btn_SendFile, MyPipeFrame::OnBtnSendFile)
EVT_BUTTON(Exec_Btn_Get, MyPipeFrame::OnBtnGet)
+ EVT_BUTTON(Exec_Btn_Close, MyPipeFrame::OnBtnClose)
EVT_TEXT_ENTER(wxID_ANY, MyPipeFrame::OnTextEnter)
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
- wxMessageBox(_T("Exec wxWidgets Sample\n© 2000-2002 Vadim Zeitlin"),
+ wxMessageBox(_T("Exec wxWidgets Sample\n(c) 2000-2002 Vadim Zeitlin"),
_T("About Exec"), wxOK | wxICON_INFORMATION, this);
}
bool MyPipedProcess2::HasInput()
{
- if ( !!m_input )
+ if ( !m_input.empty() )
{
wxTextOutputStream os(*GetOutputStream());
os.WriteString(m_input);
: wxFrame(parent, wxID_ANY, cmd),
m_process(process),
// in a real program we'd check that the streams are !NULL here
+ m_out(*process->GetOutputStream()),
m_in(*process->GetInputStream()),
- m_out(*process->GetOutputStream())
+ m_err(*process->GetErrorStream())
{
m_process->SetNextHandler(this);
wxPanel *panel = new wxPanel(this, wxID_ANY);
- m_textIn = new wxTextCtrl(panel, wxID_ANY, _T(""),
+ m_textOut = new wxTextCtrl(panel, wxID_ANY, _T(""),
wxDefaultPosition, wxDefaultSize,
wxTE_PROCESS_ENTER);
- m_textOut = new wxTextCtrl(panel, wxID_ANY, _T(""));
- m_textOut->SetEditable(false);
+ m_textIn = new wxTextCtrl(panel, wxID_ANY, _T(""),
+ wxDefaultPosition, wxDefaultSize,
+ wxTE_MULTILINE | wxTE_RICH);
+ m_textIn->SetEditable(false);
+ m_textErr = new wxTextCtrl(panel, wxID_ANY, _T(""),
+ wxDefaultPosition, wxDefaultSize,
+ wxTE_MULTILINE | wxTE_RICH);
+ m_textErr->SetEditable(false);
wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
- sizerTop->Add(m_textIn, 0, wxGROW | wxALL, 5);
+ sizerTop->Add(m_textOut, 0, wxGROW | wxALL, 5);
wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL);
- sizerBtns->Add(new wxButton(panel, Exec_Btn_Send, _T("&Send")), 0,
- wxALL, 10);
- sizerBtns->Add(new wxButton(panel, Exec_Btn_Get, _T("&Get")), 0,
- wxALL, 10);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_Send, _T("&Send")), 0, wxALL, 5);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_SendFile, _T("&File...")), 0, wxALL, 5);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_Get, _T("&Get")), 0, wxALL, 5);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_Close, _T("&Close")), 0, wxALL, 5);
sizerTop->Add(sizerBtns, 0, wxCENTRE | wxALL, 5);
- sizerTop->Add(m_textOut, 0, wxGROW | wxALL, 5);
+ sizerTop->Add(m_textIn, 1, wxGROW | wxALL, 5);
+ sizerTop->Add(m_textErr, 1, wxGROW | wxALL, 5);
panel->SetSizer(sizerTop);
sizerTop->Fit(this);
Show();
}
+void MyPipeFrame::OnBtnSendFile(wxCommandEvent& WXUNUSED(event))
+{
+ wxFileDialog filedlg(this, _T("Select file to send"));
+ if ( filedlg.ShowModal() != wxID_OK )
+ return;
+
+ wxFFile file(filedlg.GetFilename(), _T("r"));
+ wxString data;
+ if ( !file.IsOpened() || !file.ReadAll(&data) )
+ return;
+
+ // can't write the entire string at once, this risk overflowing the pipe
+ // and we would dead lock
+ size_t len = data.length();
+ const wxChar *pc = data.c_str();
+ while ( len )
+ {
+ const size_t CHUNK_SIZE = 4096;
+ m_out.Write(pc, len > CHUNK_SIZE ? CHUNK_SIZE : len);
+
+ // note that not all data could have been written as we don't block on
+ // the write end of the pipe
+ const size_t lenChunk = m_out.LastWrite();
+
+ pc += lenChunk;
+ len -= lenChunk;
+
+ DoGet();
+ }
+}
+
void MyPipeFrame::DoGet()
{
// we don't have any way to be notified when any input appears on the
// stream so we have to poll it :-(
- //
- // NB: this really must be done because otherwise the other program might
- // not have enough time to receive or process our data and we'd read
- // an empty string
- while ( !m_process->IsInputAvailable() && m_process->IsInputOpened() )
- ;
+ DoGetFromStream(m_textIn, m_in);
+ DoGetFromStream(m_textErr, m_err);
+}
+
+void MyPipeFrame::DoGetFromStream(wxTextCtrl *text, wxInputStream& in)
+{
+ while ( in.CanRead() )
+ {
+ wxChar buffer[4096];
+ buffer[in.Read(buffer, WXSIZEOF(buffer) - 1).LastRead()] = _T('\0');
- m_textOut->SetValue(m_in.ReadLine());
+ text->AppendText(buffer);
+ }
+}
+
+void MyPipeFrame::DoClose()
+{
+ m_process->CloseOutput();
+
+ DisableInput();
+}
+
+void MyPipeFrame::DisableInput()
+{
+ m_textOut->SetEditable(false);
+ FindWindow(Exec_Btn_Send)->Disable();
+ FindWindow(Exec_Btn_SendFile)->Disable();
+ FindWindow(Exec_Btn_Close)->Disable();
+}
+
+void MyPipeFrame::DisableOutput()
+{
+ FindWindow(Exec_Btn_Get)->Disable();
}
void MyPipeFrame::OnClose(wxCloseEvent& event)
void MyPipeFrame::OnProcessTerm(wxProcessEvent& WXUNUSED(event))
{
+ DoGet();
+
delete m_process;
m_process = NULL;
wxLogWarning(_T("The other process has terminated, closing"));
- Close();
+ DisableInput();
+ DisableOutput();
}
projects / wxWidgets.git / blobdiff