From d3fc1755150fd63134568285f2433544fa51af53 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Mon, 6 Jun 2005 23:35:40 +0000
Subject: [PATCH] added wxLogBuffer which collects all log messages in a string
 buffer

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34556 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/log.h   | 26 ++++++++++++++++++++++++--
 src/common/log.cpp | 16 ++++++++++++++++
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/include/wx/log.h b/include/wx/log.h
index eef804d039..4f23682b55 100644
--- a/include/wx/log.h
+++ b/include/wx/log.h
@@ -288,11 +288,31 @@ private:
 // "trivial" derivations of wxLog
 // ----------------------------------------------------------------------------
 
+// log everything to a buffer
+class WXDLLIMPEXP_BASE wxLogBuffer : public wxLog
+{
+public:
+    wxLogBuffer() { }
+
+    // get the string contents with all messages logged
+    const wxString& GetBuffer() const { return m_str; }
+
+    // show the buffer contents to the user in the best possible way (this uses
+    // wxMessageOutputMessageBox) and clear it
+    virtual void Flush();
+
+protected:
+    virtual void DoLogString(const wxChar *szString, time_t t);
+
+private:
+    wxString m_str;
+
+    DECLARE_NO_COPY_CLASS(wxLogBuffer)
+};
+
 // log everything to a "FILE *", stderr by default
 class WXDLLIMPEXP_BASE wxLogStderr : public wxLog
 {
-    DECLARE_NO_COPY_CLASS(wxLogStderr)
-
 public:
     // redirect log output to a FILE
     wxLogStderr(FILE *fp = (FILE *) NULL);
@@ -302,6 +322,8 @@ protected:
     virtual void DoLogString(const wxChar *szString, time_t t);
 
     FILE *m_fp;
+
+    DECLARE_NO_COPY_CLASS(wxLogStderr)
 };
 
 #if wxUSE_STD_IOSTREAM
diff --git a/src/common/log.cpp b/src/common/log.cpp
index 476f39db24..6397766ef6 100644
--- a/src/common/log.cpp
+++ b/src/common/log.cpp
@@ -522,6 +522,22 @@ void wxLog::Flush()
     return false;
 }
 
+// ----------------------------------------------------------------------------
+// wxLogBuffer implementation
+// ----------------------------------------------------------------------------
+
+void wxLogBuffer::Flush()
+{
+    wxMessageOutputBest out;
+    out.Printf(_T("%s"), m_str.c_str());
+    m_str.clear();
+}
+
+void wxLogBuffer::DoLogString(const wxChar *szString, time_t WXUNUSED(t))
+{
+    m_str << szString << _T("\n");
+}
+
 // ----------------------------------------------------------------------------
 // wxLogStderr class implementation
 // ----------------------------------------------------------------------------
-- 
2.45.2