Add a banner.

IPython/frontend/linefrontendbase.py

@@ -62,15 +62,23 b' class LineFrontEndBase(FrontEndBase):'
     # Set to true for debug output
     debug = False
 
+    # A banner to print at startup
+    banner = None
+
     #--------------------------------------------------------------------------
     # FrontEndBase interface
     #--------------------------------------------------------------------------
 
-    def __init__(self, shell=None, history=None, *args, **kwargs):
+    def __init__(self, shell=None, history=None, banner=None, *args, **kwargs):
         if shell is None:
             shell = Interpreter()
         FrontEndBase.__init__(self, shell=shell, history=history)
-        
+
+        if banner is not None:
+            self.banner = banner
+        if self.banner is not None:
+            self.write(self.banner, refresh=False)
+
         self.new_prompt(self.input_prompt_template.substitute(number=1))
 
 

IPython/frontend/prefilterfrontend.py

@@ -59,7 +59,6 b' class PrefilterFrontEnd(LineFrontEndBase):'
     """
     
     def __init__(self, *args, **kwargs):
-        LineFrontEndBase.__init__(self, *args, **kwargs)
         self.save_output_hooks()
         # Instanciate an IPython0 interpreter to be able to use the
         # prefiltering.
@@ -69,9 +68,6 b' class PrefilterFrontEnd(LineFrontEndBase):'
                     lambda s, string: self.write("\n"+string))
         self.ipython0.write = self.write
         self._ip = _ip = IPApi(self.ipython0)
-        # XXX: Hack: mix the two namespaces
-        self.shell.user_ns = self.ipython0.user_ns
-        self.shell.user_global_ns = self.ipython0.user_global_ns
         # Make sure the raw system call doesn't get called, as we don't
         # have a stdin accessible.
         self._ip.system = self.system_call
@@ -81,6 +77,15 b' class PrefilterFrontEnd(LineFrontEndBase):'
                                                             'ls -CF')
         # And now clean up the mess created by ipython0
         self.release_output()
+        if not 'banner' in kwargs:
+            kwargs['banner'] = self.ipython0.BANNER + """
+This is the wx frontend, by Gael Varoquaux. This is EXPERIMENTAL code."""
+
+        LineFrontEndBase.__init__(self, *args, **kwargs)
+        # XXX: Hack: mix the two namespaces
+        self.shell.user_ns = self.ipython0.user_ns
+        self.shell.user_global_ns = self.ipython0.user_global_ns
+
         self.shell.output_trap = RedirectorOutputTrap(
                             out_callback=self.write,
                             err_callback=self.write,

IPython/frontend/wx/console_widget.py

@@ -175,7 +175,7 b' class ConsoleWidget(editwindow.EditWindow):'
 
             The prompt can be given with ascii escape sequences.
         """
-        self.write(prompt)
+        self.write(prompt, refresh=False)
         # now we update our cursor giving end of prompt
         self.current_prompt_pos = self.GetLength()
         self.current_prompt_line = self.GetCurrentLine()
@@ -253,7 +253,6 b' class ConsoleWidget(editwindow.EditWindow):'
         self.SetIndent(4)
         self.SetTabWidth(4)
 
-        self.EnsureCaretVisible()
         # we don't want scintilla's autocompletion to choose 
         # automaticaly out of a single choice list, as we pop it up
         # automaticaly
@@ -300,7 +299,6 b' class ConsoleWidget(editwindow.EditWindow):'
         self.StyleSetSpec(stc.STC_P_OPERATOR, p['operator'])
         self.StyleSetSpec(stc.STC_P_COMMENTBLOCK, p['comment'])
 
-
     def _on_key_down(self, event, skip=True):
         """ Key press callback used for correcting behavior for 
             console-like interfaces: the cursor is constraint to be after

IPython/frontend/wx/ipythonx.py

@@ -16,6 +16,7 b' You need wxPython to run this application.'
 from wx_frontend import WxController
 import __builtin__
 
+
 class IPythonXController(WxController):
     """ Sub class of WxController that adds some application-specific
         bindings.
@@ -26,6 +27,9 b' class IPythonXController(WxController):'
     def __init__(self, *args, **kwargs):
         WxController.__init__(self, *args, **kwargs)
         self.ipython0.ask_exit = self.do_exit
+        # Scroll to top
+        maxrange = self.GetScrollRange(wx.VERTICAL)
+        self.ScrollLines(-maxrange)
 
 
     def _on_key_down(self, event, skip=True):