added wxNotificationMessage and implemented it generically and natively for Maemo

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/notifmsg.h

@@ -0,0 +1,131 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/notifmsg.h
+// Purpose:     class allowing to show notification messages to the user
+// Author:      Vadim Zeitlin
+// Created:     2007-11-19
+// RCS-ID:      $Id$
+// Copyright:   (c) 2007 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_NOTIFMSG_H_
+#define _WX_NOTIFMSG_H_
+
+#include "wx/event.h"
+
+#if wxUSE_NOTIFICATION_MESSAGE
+
+// ----------------------------------------------------------------------------
+// wxNotificationMessage: allows to show the user a message non intrusively
+// ----------------------------------------------------------------------------
+
+// notice that this class is not a window and so doesn't derive from wxWindow
+
+class WXDLLIMPEXP_ADV wxNotificationMessageBase : public wxEvtHandler
+{
+public:
+    // ctors and initializers
+    // ----------------------
+
+    // default ctor, use setters below to initialize it later
+    wxNotificationMessageBase() { }
+
+    // create a notification object with the given title and message (the
+    // latter may be empty in which case only the title will be shown)
+    wxNotificationMessageBase(const wxString& title,
+                              const wxString& message = wxString(),
+                              wxWindow *parent = NULL)
+        : m_title(title),
+          m_message(message),
+          m_parent(parent)
+    {
+    }
+
+    // note that the setters must be called before Show()
+
+    // set the title: short string, markup not allowed
+    void SetTitle(const wxString& title) { m_title = title; }
+
+    // set the text of the message: this is a longer string than the title and
+    // some platforms allow simple HTML-like markup in it
+    void SetMessage(const wxString& message) { m_message = message; }
+
+    // set the parent for this notification: we'll be associated with the top
+    // level parent of this window or, if this method is not called, with the
+    // main application window by default
+    void SetParent(wxWindow *parent) { m_parent = parent; }
+
+
+    // showing and hiding
+    // ------------------
+
+    // possible values for Show() timeout
+    enum
+    {
+        Timeout_Auto = -1,  // notification will be hidden automatically
+        Timeout_Never = 0   // notification will never time out
+    };
+
+    // show the notification to the user and hides it after timeout seconds
+    // pass (special values Timeout_Auto and Timeout_Never can be used)
+    //
+    // returns false if an error occurred
+    virtual bool Show(int timeout = Timeout_Auto) = 0;
+
+    // hide the notification, returns true if it was hidden or false if it
+    // couldn't be done (e.g. on some systems automatically hidden
+    // notifications can't be hidden manually)
+    virtual bool Close() = 0;
+
+protected:
+    // accessors for the derived classes
+    const wxString& GetTitle() const { return m_title; }
+    const wxString& GetMessage() const { return m_message; }
+    wxWindow *GetParent() const { return m_parent; }
+
+    // return the concatenation of title and message separated by a new line,
+    // this is suitable for simple implementation which have no support for
+    // separate title and message parts of the notification
+    wxString GetFullMessage() const
+    {
+        wxString text(m_title);
+        if ( !m_message.empty() )
+        {
+            text << "\n\n" << m_message;
+        }
+
+        return text;
+    }
+
+private:
+    wxString m_title,
+             m_message;
+
+    wxWindow *m_parent;
+
+    DECLARE_NO_COPY_CLASS(wxNotificationMessageBase)
+};
+
+#define wxUSE_GENERIC_NOTIFICATION_MESSAGE 1
+
+#if defined(__WXGTK__) && wxUSE_LIBHILDON
+    // we always use the native implementation in Hildon while the other ports
+    // will fall back to the generic one even if they have a native version too
+    #undef wxUSE_GENERIC_NOTIFICATION_MESSAGE
+    #define wxUSE_GENERIC_NOTIFICATION_MESSAGE 0
+
+    #include "wx/gtk/hildon/notifmsg.h"
+/*
+    TODO: provide support for
+        - libnotify (Gnome)
+        - Snarl (http://www.fullphat.net/, Win32)
+        - Growl (http://growl.info/, OS X)
+ */
+#else
+    #include "wx/generic/notifmsg.h"
+#endif
+
+#endif // wxUSE_NOTIFICATION_MESSAGE
+
+#endif // _WX_NOTIFMSG_H_
+