[transmageddon] Add initial language chooser dialog. Fix choosing second file in UI

[Christian Fredrik Kalager Schaller <uraeus src gnome org>]

commit a89d14e1b324dba1108cd3cfddd113dad0e083a5
Author: Christian Fredrik Kalager Schaller <uraeus linuxrisin org>
Date:   Wed Jan 23 21:45:34 2013 +0100

    Add initial language chooser dialog. Fix choosing second file in UI

 src/langchooser.py   |   55 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/transmageddon.py |   14 +++++++++++-
 2 files changed, 68 insertions(+), 1 deletions(-)
---
diff --git a/src/langchooser.py b/src/langchooser.py
new file mode 100644
index 0000000..409a90b
--- /dev/null
+++ b/src/langchooser.py
@@ -0,0 +1,55 @@
+import os
+from gi.repository import Gtk, GLib, Gst, GstTag
+
+class languagechooser(Gtk.Dialog): 
+   def __init__(self, parent): 
+       self.languageui = Gtk.Builder()
+       self.languageui.add_from_file("transmageddon-language-chooser.ui")
+       langscroll = self.languageui.get_object("langscroll")
+       cancelbutton = self.languageui.get_object("cancelbutton")
+       selectbutton = self.languageui.get_object("selectbutton")
+
+       self.languageui.connect_signals(self) # Initialize User Interface
+       self.langcode=None # this will hold the selected language value
+
+       store = Gtk.ListStore(str)
+       self.langcodeList=GstTag.tag_get_language_codes()
+       langcontents = []
+       for item in self.langcodeList: 
+           langcontents.append([GstTag.tag_get_language_name(item)])
+       for act in langcontents:
+           store.append([act[0]])
+                           
+       self.langview = Gtk.TreeView(store)
+       self.langview.set_reorderable(False)
+       self.langview.set_headers_visible(False)
+
+       langscroll.add(self.langview)
+       self.create_columns(self.langview)        
+       self.languagewindow = self.languageui.get_object("languageui")
+       self.languagewindow.set_modal(True)
+       self.languagewindow.set_transient_for(parent)
+
+       self.languagewindow.show_all()
+
+   def create_columns(self, treeView):
+       rendererText = Gtk.CellRendererText()
+       column = Gtk.TreeViewColumn(None, rendererText, text=0)
+       column.set_sort_indicator(False)
+       self.langview.append_column(column)
+
+   def on_cancelbutton_clicked(self, widget):
+       self.languagewindow.destroy()
+
+
+   def on_selectbutton_clicked(self, widget):
+       language=self.langview.get_selection()
+       (model, pathlist) = language.get_selected_rows()
+       for path in pathlist :
+           tree_iter = model.get_iter(path)
+           value = model.get_value(tree_iter,0)
+           numvalue=path.to_string()
+           self.langcode=self.langcodeList[int(numvalue)]
+       self.languagewindow.destroy()
+
+
diff --git a/src/transmageddon.py b/src/transmageddon.py
index 9445c28..a197b70 100644
--- a/src/transmageddon.py
+++ b/src/transmageddon.py
@@ -42,6 +42,7 @@ import about
 import presets
 import utils
 import datetime
+import langchooser
 
 major, minor, patch, micro = Gst.version()
 if (major == 1) and (patch < 0):
@@ -631,6 +632,12 @@ class TransmageddonUI(Gtk.ApplicationWindow):
                        self.haveaudio=True
                        self.audiodata.append(self.add_audiodata_row(i.get_channels(), i.get_sample_rate(), i.get_caps(), False, streamid, False, False, i.get_language()))
                        if self.audiodata[self.audiostreamcounter]['language']== None:
+                           # load language setting ui
+                           output=langchooser.languagechooser(self)
+                           output.languagewindow.run()
+                           langcode=output.langcode
+                           print(langcode)
+
                            self.audiodata[self.audiostreamcounter]['language']=_("Unknown language")
                        if self.audiostreamcounter > 0:
                            combo = Gtk.ComboBoxText.new()
@@ -751,7 +758,12 @@ class TransmageddonUI(Gtk.ApplicationWindow):
    # define the behaviour of the other buttons
    def on_FileChooser_file_set(self, widget):
        self.filename = self.builder.get_object ("FileChooser").get_filename()
-       self.audiodata = []
+       # These two list objects will hold all crucial media data in the form of python dictionaries.
+       self.audiodata =[]
+       self.videodata =[]
+       self.audiostreamids=[] # (list of stream ids)
+       self.videostreamids=[]
+       self.audiostreamcounter=-1
        if self.filename is not None: 
            self.haveaudio=False #make sure to reset these for each file
            self.havevideo=False #