- Update ac_python_devel macro to integrate advice from Horst

- Improve a little GraphicalTerminalIo


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@461 3ecf2c5c-341e-0410-92b4-d18e462d057c

m4/ac_python_devel.m4

@@ -30,6 +30,7 @@ dnl @author Alan W. Irwin <irwin@beluga.phys.uvic.ca>
 dnl @author Rafael Laboissiere <laboissiere@psy.mpg.de>
 dnl @author Andrew Collier <colliera@nu.ac.za>
 dnl @author Matteo Settenvini <matteo@member.fsf.org>
+dnl @author Horst Knorr <hk_classes@knoda.org> 
 dnl @version 2006-02-05
 dnl @license GPLWithACException
 
@@ -183,4 +184,41 @@ $ac_distutils_result])
 	fi
 	AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
 	AC_SUBST(PYTHON_EXTRA_LDFLAGS)
+
+	#	
+	# final check to see if everything compiles alright
+	#
+	AC_MSG_CHECKING([whether collected informations are consistent])
+	AC_LANG_PUSH([C])
+	# save current global flags
+	LIBS="$ac_save_LIBS $PYTHON_LDFLAGS"
+	CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
+	AC_TRY_LINK([
+		#include <Python.h>
+	],[
+		Py_Initialize();
+	],[pythonexists=yes],[pythonexists=no])
+
+	AC_MSG_RESULT([$pythonexists])
+
+        if test ! "$pythonexists" = "yes"; then
+	   AC_MSG_ERROR([
+  Could not link test program to Python. Maybe the main Python library has been
+  installed in some non-standard library path. If so, pass it to configure, 
+  via the LDFLAGS environment variable.
+  ============================================================================
+   ERROR!
+   You probably have to install the development version of the Python package
+   for your distribution.  The exact name of this package varies among them.
+  ============================================================================
+	   ])
+	fi
+	AC_LANG_POP
+	# turn back to default flags
+	CPPFLAGS="$ac_save_CPPFLAGS"
+	LIBS="$ac_save_LIBS"
+
+	#
+	# all done!
+	#
 ])

src/graphical_terminal_io.cc

@@ -25,10 +25,13 @@
 
 #include <glibmm/thread.h>
 #include <gtkmm/button.h>
+#include <gtkmm/main.h>
+#include <gtkmm/scrolledwindow.h>
 #include <gtkmm/textview.h>
 #include <glibmm/ustring.h>
 
 #include <algorithm>
+#include <iostream>
 #include <utility>
 
 using namespace sgpem;
@@ -37,36 +40,41 @@ using Glib::ustring;
 using Glib::Thread;
 
 GraphicalTerminalIO::GraphicalTerminalIO(TextSimulation* sim)
-	:_sim(sim)
+  : _sim(sim)
 {
   using namespace Gtk;
   
   set_title(_("Textual Simulation Log"));
   set_default_size(500,300);
 
-  Gtk::Box* mainbox = manage(new VBox());
-  add(*mainbox);
+  Box& mainbox = *manage(new VBox());
+  add(mainbox);
   
+  ScrolledWindow& txout_scroll = *manage(new ScrolledWindow());
   _text_output.set_editable(false);
   _text_output.modify_font(Pango::FontDescription("monospace"));
-  mainbox->pack_start(_text_output);
+  txout_scroll.set_policy(POLICY_AUTOMATIC, POLICY_AUTOMATIC);
+  txout_scroll.add(_text_output);
+  mainbox.pack_start(txout_scroll);
 
-  Gtk::Box* cmdbox = manage(new HBox());
-  mainbox->pack_end(*cmdbox, false, false);
+  Box& cmdbox = *manage(new HBox());
+  mainbox.pack_end(cmdbox, false, false);
 
-  _text_input.signal_key_press_event().connect(sigc::mem_fun(*this, &GraphicalTerminalIO::_on_input_commit));
-  cmdbox->pack_start(_text_input);
+  // Maybe we should connect explicitly TextBuffer.signal_changed
+  // to the TextView redraw function (see Gtk::Widget for that)??
 
-  _send = manage(new Button(_("Send Command")));
-  _send->signal_clicked().connect(sigc::mem_fun(*this, &GraphicalTerminalIO::onSend));
-  cmdbox->pack_start(*_send, false, true);
+  _text_input.activate();
+  _text_input.set_activates_default();
+  cmdbox.pack_start(_text_input);
+
+  Button& btsend = *manage(new Gtk::Button(_("Send Command")));
+  btsend.signal_clicked().connect(sigc::mem_fun(*this, &GraphicalTerminalIO::onSend));
+  GTK_WIDGET_SET_FLAGS(btsend.gobj(), CAN_DEFAULT);
+  set_default(btsend);
+  cmdbox.pack_start(btsend, false, true);
   
   _text_input.grab_focus();
   
-  //this button is the default widget
-  //GTK_WIDGET_SET_FLAGS ( _send , GTK_CAN_DEFAULT);
-  //_send->grab_default();
-
   show_all_children();
 }
 
@@ -77,10 +85,11 @@ void
 GraphicalTerminalIO::onSend()
 {
 
-	pair< pair<TextSimulation*, IOManager*>,  const ustring >  p(
-			pair<TextSimulation*, IOManager*>(_sim, this), _text_input.get_text());
+  pair<pair<TextSimulation*, IOManager*>, const ustring>  p(
+	              pair<TextSimulation*, IOManager*>(_sim, this), 
+		      _text_input.get_text());
 
-	Thread::create(	sigc::bind(&TextSimulation::parse_command, p), true);	
+  Thread::create(sigc::bind(&TextSimulation::parse_command, p), true);
   
   _text_input.set_text("");
   _text_input.grab_focus();
@@ -91,14 +100,22 @@ GraphicalTerminalIO::write_buffer(const Glib::ustring& buffer)
 {
   Gtk::TextBuffer::iterator i = _text_output.get_buffer()->end();
   _text_output.get_buffer()->insert(i, buffer);
-	i = _text_output.get_buffer()->end();
-	//_text_output.scroll_to(i); // would need a mutex!
+
+  // Force the UI update queue to flush
+  //  while(Gtk::Main::instance()->events_pending()) 
+  //  Gtk::Main::instance()->iteration();
+ 
+  // i = _text_output.get_buffer()->end();
   return buffer.size();
 }
 
 Glib::ustring
 GraphicalTerminalIO::read_command() 
 {
+  // For next implementers: take a look to Gtk::EntryCompletion...
+  // ... maybe it's worth using (when and if we'll have a separate
+  // Interpreter class)
+  
   using Glib::ustring;
   static const ustring whitespaces = " \r\b\n\t\a";
                              // are there any other wspaces?
@@ -119,16 +136,3 @@ GraphicalTerminalIO::is_full_duplex()
 {
 	return true;
 }
-
-bool 
-GraphicalTerminalIO::_on_input_commit(GdkEventKey* event)
-{
-    // We should use Gdk::GDK_Return here, but it doesn't work for 
-    // some reason!!
-    if((event->keyval & 0xFF0D) == 0xFF0D )
-    {
-	onSend();
-	return true;
-    }
-    return true;
-}

src/graphical_terminal_io.hh

@@ -30,9 +30,10 @@
 #include <gtkmm/window.h>
 #include <glibmm/ustring.h>
 
+#include "io_manager.hh"
 #include "text_simulation.hh"
 
-#include "io_manager.hh"
+#include <memory>
 
 namespace sgpem {
 
@@ -88,12 +89,9 @@ namespace sgpem {
 	void 					onSend();
 	
   private:
-      bool _on_input_commit(GdkEventKey* event);
-      
     TextSimulation*	  _sim;
     Gtk::TextView         _text_output;
     mutable Gtk::Entry    _text_input;
-      Gtk::Button*          _send;
   };
   
 }