[ocrfeeder] Add detection of OCR engines to OCR manager dialog

[Joaquim Manuel Pereira Rocha <jrocha src gnome org>]

commit 8be95f33ab9a69799a9ae27cadad6efb5213257b
Author: Joaquim Rocha <jrocha cookiemonster local igalia com>
Date:   Mon Mar 22 19:02:00 2010 +0100

    Add detection of OCR engines to OCR manager dialog

 studio/widgetPresenter.py |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/studio/widgetPresenter.py b/studio/widgetPresenter.py
index 0c06162..6559182 100644
--- a/studio/widgetPresenter.py
+++ b/studio/widgetPresenter.py
@@ -1111,6 +1111,7 @@ class OcrManagerDialog(gtk.Dialog):
         self.delete_engine.connect('clicked', self.__delete)
         self.new_engine.connect('clicked', self.__engine_settings)
         self.edit_engine.connect('clicked', self.__edit)
+        self.detect_engines.connect('clicked', self.__detectEnginesCb)
     
     def __makeMainArea(self):
         frame = PlainFrame(_('OCR Engines'))
@@ -1124,10 +1125,12 @@ class OcrManagerDialog(gtk.Dialog):
         self.new_engine = gtk.Button(_('Add'), gtk.STOCK_ADD)
         self.delete_engine = gtk.Button(_('Delete'), gtk.STOCK_DELETE)
         self.edit_engine = gtk.Button(_('Edit'), gtk.STOCK_EDIT)
+        self.detect_engines = gtk.Button(_('Detect'))
         buttons_box = gtk.VBox()
         buttons_box.pack_start(self.new_engine, False)
         buttons_box.pack_start(self.edit_engine, False)
         buttons_box.pack_start(self.delete_engine, False)
+        buttons_box.pack_start(self.detect_engines, False, False, 10)
         engines_box.pack_end(buttons_box, False)
         frame.add(engines_box)
         return frame
@@ -1179,6 +1182,24 @@ class OcrManagerDialog(gtk.Dialog):
         for engine in self.engines_manager.getEnginesNames():
             self.list_store.append((engine,))
 
+    def __detectEnginesCb(self, button):
+        engines = self.engines_manager.configuration_manager.getEnginesInSystem()
+        if not engines:
+            info = InfoDialog(_('No OCR engines were found in the system.\n'
+                                'Please make sure you have OCR engines installed '
+                                'and available.'),
+                              _('No OCR engines available'))
+            info.run()
+            info.destroy()
+            return
+        engines_dialog = SystemEnginesDialog(engines)
+        response = engines_dialog.run()
+        if response == gtk.RESPONSE_ACCEPT:
+            for engine in engines_dialog.getChosenEngines():
+                self.engines_manager.addNewEngine(engine)
+        engines_dialog.destroy()
+        self.__getEngines()
+
 class OcrSettingsDialog(gtk.Dialog):
     
     def __init__(self, engine_manager, engine = None):