// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
-// Some older compilers (such as EMX) cannot handle
-// #pragma interface/implementation correctly, iff
-// #pragma implementation is used in _two_ translation
-// units (as created by e.g. event.cpp compiled for
-// libwx_base and event.cpp compiled for libwx_gui_core).
-// So we must not use those pragmas for those compilers in
-// such files.
- #pragma interface "msgout.h"
-#endif
-
#include "wx/defs.h"
-#include "wx/wxchar.h"
+#include "wx/chartype.h"
+#include "wx/strvararg.h"
// ----------------------------------------------------------------------------
// wxMessageOutput is a class abstracting formatted output target, i.e.
// something you can printf() to
// ----------------------------------------------------------------------------
-class WXDLLIMPEXP_BASE wxMessageOutput
+// NB: VC6 has a bug that causes linker errors if you have template methods
+// in a class using __declspec(dllimport). The solution is to split such
+// class into two classes, one that contains the template methods and does
+// *not* use WXDLLIMPEXP_BASE and another class that contains the rest
+// (with DLL linkage).
+class wxMessageOutputBase
{
public:
- virtual ~wxMessageOutput() { }
+ virtual ~wxMessageOutputBase() { }
// show a message to the user
- virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2 = 0;
+ // void Printf(const wxString& format, ...) = 0;
+ WX_DEFINE_VARARG_FUNC_VOID(Printf, 1, (const wxFormatString&),
+ DoPrintfWchar, DoPrintfUtf8)
+#ifdef __WATCOMC__
+ // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
+ WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const wxString&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const wxCStrData&),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const char*),
+ (wxFormatString(f1)));
+ WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const wchar_t*),
+ (wxFormatString(f1)));
+#endif
+
+ // called by DoPrintf() to output formatted string but can also be called
+ // directly if no formatting is needed
+ virtual void Output(const wxString& str) = 0;
+
+protected:
+ // NB: this is pure virtual so that it can be implemented in dllexported
+ // wxMessagOutput class
+#if !wxUSE_UTF8_LOCALE_ONLY
+ virtual void DoPrintfWchar(const wxChar *format, ...) = 0;
+#endif
+#if wxUSE_UNICODE_UTF8
+ virtual void DoPrintfUtf8(const char *format, ...) = 0;
+#endif
+};
- // gets the current wxMessageOutput object
+#ifdef __VISUALC__
+ // "non dll-interface class 'wxStringPrintfMixin' used as base interface
+ // for dll-interface class 'wxString'" -- this is OK in our case
+ #pragma warning (push)
+ #pragma warning (disable:4275)
+#endif
+
+class WXDLLIMPEXP_BASE wxMessageOutput : public wxMessageOutputBase
+{
+public:
+ virtual ~wxMessageOutput() { }
+
+ // gets the current wxMessageOutput object (may be NULL during
+ // initialization or shutdown)
static wxMessageOutput* Get();
// sets the global wxMessageOutput instance; returns the previous one
static wxMessageOutput* Set(wxMessageOutput* msgout);
+protected:
+#if !wxUSE_UTF8_LOCALE_ONLY
+ virtual void DoPrintfWchar(const wxChar *format, ...);
+#endif
+#if wxUSE_UNICODE_UTF8
+ virtual void DoPrintfUtf8(const char *format, ...);
+#endif
+
private:
static wxMessageOutput* ms_msgOut;
};
+#ifdef __VISUALC__
+ #pragma warning (pop)
+#endif
+
// ----------------------------------------------------------------------------
-// implementation which sends output to stderr
+// implementation which sends output to stderr or specified file
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_BASE wxMessageOutputStderr : public wxMessageOutput
{
public:
- wxMessageOutputStderr() { }
+ wxMessageOutputStderr(FILE *fp = stderr) : m_fp(fp) { }
+
+ virtual void Output(const wxString& str);
+
+protected:
+ // return the string with "\n" appended if it doesn't already terminate
+ // with it (in which case it's returned unchanged)
+ wxString AppendLineFeedIfNeeded(const wxString& str);
+
+ FILE *m_fp;
+};
+
+// ----------------------------------------------------------------------------
+// implementation showing the message to the user in "best" possible way:
+// uses stderr or message box if available according to the flag given to ctor.
+// ----------------------------------------------------------------------------
+
+enum wxMessageOutputFlags
+{
+ wxMSGOUT_PREFER_STDERR = 0, // use stderr if available (this is the default)
+ wxMSGOUT_PREFER_MSGBOX = 1 // always use message box if available
+};
+
+class WXDLLIMPEXP_BASE wxMessageOutputBest : public wxMessageOutputStderr
+{
+public:
+ wxMessageOutputBest(wxMessageOutputFlags flags = wxMSGOUT_PREFER_STDERR)
+ : m_flags(flags) { }
+
+ virtual void Output(const wxString& str);
- virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
+private:
+ wxMessageOutputFlags m_flags;
};
// ----------------------------------------------------------------------------
// implementation which shows output in a message box
// ----------------------------------------------------------------------------
-#if wxUSE_GUI
+#if wxUSE_GUI && wxUSE_MSGDLG
class WXDLLIMPEXP_CORE wxMessageOutputMessageBox : public wxMessageOutput
{
public:
wxMessageOutputMessageBox() { }
- virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
+ virtual void Output(const wxString& str);
};
-#endif // wxUSE_GUI
+#endif // wxUSE_GUI && wxUSE_MSGDLG
// ----------------------------------------------------------------------------
// implementation using the native way of outputting debug messages
// ----------------------------------------------------------------------------
-class WXDLLIMPEXP_BASE wxMessageOutputDebug : public wxMessageOutput
+class WXDLLIMPEXP_BASE wxMessageOutputDebug : public wxMessageOutputStderr
{
public:
wxMessageOutputDebug() { }
- virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
+ virtual void Output(const wxString& str);
};
// ----------------------------------------------------------------------------
public:
wxMessageOutputLog() { }
- virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
+ virtual void Output(const wxString& str);
};
-#endif
- // _WX_MSGOUT_H_
+#endif // _WX_MSGOUT_H_
projects / wxWidgets.git / blobdiff