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gespeakerUI.py

@@ -6,26 +6,36 @@
 import gtk
 import gtk.glade
 import pygtk
+import gobject
 pygtk.require("2.0")
 
-import subprocess
+# No more used
+# import TempfileWrapper
+import tempfile
+import os
 from gettext import gettext as _
 
 from DialogYesNo import DialogYesNo
 from DialogFileOpenSave import DialogFileOpen, DialogFileSave
 from DialogSimpleMessages import *
 from DialogAbout import DialogAbout
+from EspeakFrontend import EspeakFrontend
 
-espeakcmd = '/usr/bin/espeak'
-espeakargs = '--stdout -a %d -p %d -s %d -g %d -v %s "%s" | aplay 2> /dev/null'
+cmdEspeak = '/usr/bin/espeak'
+cmdPlayer = 'aplay'
+argsEspeak = '--stdout -a %d -p %d -s %d -g %d -v %s -f %s'
 
-class gespeakerUI():
+class gespeakerUI(object):
   def __init__(self, app_name, app_title, app_version):
     print 'starting gespeaker'
+    self.espeak = EspeakFrontend()
+    # Create temporary filename
+    self.tempFilename = tempfile.mkstemp(prefix='gespeaker')[1]
     gladeUI = 'gespeaker.glade'
     self.app_name = app_name
     self.app_title = app_title
     self.app_version = app_version
+    self.timeoutCheck = None
     print 'loading interface from %s' % gladeUI
     self.gladeFile = gtk.glade.XML(fname=gladeUI, domain=self.app_name)
     # Signals handler
@@ -35,29 +45,44 @@ def __init__(self, app_name, app_title, app_version):
       'on_imgmenuFileNew_activate': self.on_imgmenuFileNew_activate,
       'on_imgmenuFileOpen_activate': self.on_imgmenuFileOpen_activate,
       'on_imgmenuFileSaveAs_activate': self.on_imgmenuFileSaveAs_activate,
+      'on_imgmenuEditStop_activate': self.on_imgmenuEditStop_activate,
+      'on_btnPlayStop_toggled': self.on_btnPlayStop_toggled,
+      'on_btnPause_toggled': self.on_btnPause_toggled,
+      'on_imgmenuEditPause_activate': self.on_imgmenuEditPause_activate,
       'on_imgmenuEditResetSettings_activate': self.on_imgmenuEditResetSettings_activate,
       'on_imgmenuHelpAbout_activate': self.on_imgmenuHelpAbout_activate
     }
     self.gladeFile.signal_autoconnect(segnali)
     # Load window and controls
     self.loadControls()
     self.winMain.show()
+    # Play default message
+    self.btnPlayStop.set_active(True)
     gtk.main()
 
   def loadControls(self):
     "Load controls and other values"
     # Load controls from gladeFile
     print 'loading controls from UI'
-    self.winMain = self.gladeFile.get_widget('winMain')
+    gw = self.gladeFile.get_widget
+    self.winMain = gw('winMain')
     self.winMain.set_title(self.app_title)
-    self.winMain.set_icon_from_file('gespeaker.png')
-    self.winMain.set_focus(self.gladeFile.get_widget('txvText'))
-    self.txvBuffer = self.gladeFile.get_widget('txvText').get_buffer()
-    self.hscVolume = self.gladeFile.get_widget('hscVolume')
-    self.hscPitch = self.gladeFile.get_widget('hscPitch')
-    self.hscSpeed = self.gladeFile.get_widget('hscSpeed')
-    self.hscDelay = self.gladeFile.get_widget('hscDelay')
-    self.cboLanguages = self.gladeFile.get_widget('cboLanguages')
+    self.winMain.set_icon_from_file('gespeaker.svg')
+    self.winMain.set_focus(gw('txvText'))
+    self.txvBuffer = gw('txvText').get_buffer()
+    self.hscVolume = gw('hscVolume')
+    self.hscPitch = gw('hscPitch')
+    self.hscSpeed = gw('hscSpeed')
+    self.hscDelay = gw('hscDelay')
+    self.cboLanguages = gw('cboLanguages')
+    self.radioVoiceMale = gw('radioVoiceMale')
+    self.radioVoiceFemale = gw('radioVoiceFemale')
+    self.imgmenuEditPlay = gw('imgmenuEditPlay')
+    self.imgmenuEditStop = gw('imgmenuEditStop')
+    self.tlbStop = gw('tlbStop')
+    self.btnPlayStop = gw('btnPlayStop')
+    self.btnPause = gw('btnPause')
+    self.imgmenuEditPause = gw('imgmenuEditPause')
     # Useful lambda to get txvBuffer's text
     self.getText = lambda buffer=self.txvBuffer: buffer.get_text(
       buffer.get_start_iter(), buffer.get_end_iter()
@@ -69,10 +94,8 @@ def loadControls(self):
     self.cboLanguages.pack_start(cell, True)
     self.cboLanguages.add_attribute(cell, 'text', 0)
     # Load languages list from espeak --voices
-    print 'loading languages from %s --voices' % espeakcmd
-    p = subprocess.Popen((espeakcmd, '--voices'), stdout=subprocess.PIPE)
     self.defaultLanguage = 0
-    for langs in p.communicate()[0].split('\n')[1:-1]:
+    for langs in self.espeak.loadLanguages(cmdEspeak):
       lang = langs[22:52].rsplit(None, 1)
       listLanguages.append(lang)
       if lang[0] == _('default language'):
@@ -83,28 +106,14 @@ def loadControls(self):
   def on_imgmenuFileQuit_activate(self, widget, data=None):
     "Close the program"
     print 'quitting'
+    if self.tempFilename and os.path.exists(self.tempFilename):
+      os.remove(self.tempFilename)
     gtk.main_quit()
     return 0
 
   def on_imgmenuEditPlay_activate(self, widget, data=None):
-    "Play whole text"
-    text = self.getText(self.txvBuffer)
-    text = text.replace('\\', '\\\\')
-    text = text.replace('`', '\\`')
-    text = text.replace('"', '\\"')
-    text = text.replace('$', '\\$')
-    if text:
-      cmd = '%s %s' % (espeakcmd, espeakargs % (
-          self.hscVolume.get_value(), 
-          self.hscPitch.get_value(),
-          self.hscSpeed.get_value(),
-          self.hscDelay.get_value(),
-          self.cboLanguages.get_model()[self.cboLanguages.get_active()][1],
-          text
-        )
-      )
-      print cmd
-      processPlay = subprocess.Popen(cmd, shell=True)
+    "Press button to start play, indirect cause button style"
+    self.btnPlayStop.set_active(True)
 
   def on_imgmenuFileNew_activate(self, widget, data=None):
     "Clears the whole text"
@@ -113,7 +122,7 @@ def on_imgmenuFileNew_activate(self, widget, data=None):
         message=_('Do you want to delete the current text?'), 
         default_button=gtk.RESPONSE_NO
       )
-      dialog.set_icon_from_file('gespeaker.png')
+      dialog.set_icon_from_file('gespeaker.svg')
       dialog.show()
       if dialog.responseIsYes():
         self.txvBuffer.set_text('')
@@ -122,7 +131,7 @@ def on_imgmenuFileNew_activate(self, widget, data=None):
   def on_imgmenuFileOpen_activate(self, widget, data=None):
     "Loads an external file"
     dialog = DialogFileOpen(title=_('Please select the file to open'))
-    dialog.set_icon_from_file('gespeaker.png')
+    dialog.set_icon_from_file('gespeaker.svg')
     if dialog.show():
       file = None
       try:
@@ -140,14 +149,13 @@ def on_imgmenuFileOpen_activate(self, widget, data=None):
       except:
         ShowDialogError(text=_('Error opening the file'), showOk=True)
         print 'error loading %s' % dialog.filename
-      finally:
-        if file:
-          file.close()
+      if file:
+        file.close()
 
   def on_imgmenuFileSaveAs_activate(self, widget, data=None):
     "Saves the whole text in the specified filename"
     dialog = DialogFileSave(title=_('Please select where to save the file'))
-    dialog.set_icon_from_file('gespeaker.png')
+    dialog.set_icon_from_file('gespeaker.svg')
     if dialog.show():
       print 'saving text in %s' % dialog.filename
       file = None
@@ -166,23 +174,23 @@ def on_imgmenuFileSaveAs_activate(self, widget, data=None):
       except:
         ShowDialogError(text=_('Error saving the file'), showOk=True)
         print 'error saving %s' % dialog.filename
-      finally:
-        if file:
-          file.close()
+      if file:
+        file.close()
 
   def on_imgmenuEditResetSettings_activate(self, widget, data=None):
     "Restore default settings"
     dialog = DialogYesNo(
       message=_('Do you want to reset the default settings?'),
       default_button=gtk.RESPONSE_NO
     )
-    dialog.set_icon_from_file('gespeaker.png')
+    dialog.set_icon_from_file('gespeaker.svg')
     dialog.show()
     if dialog.responseIsYes():
       self.hscVolume.set_value(100)
       self.hscPitch.set_value(50)
       self.hscSpeed.set_value(170)
       self.hscDelay.set_value(10)
+      self.radioVoiceMale.set_active(True)
       if self.defaultLanguage:
         self.cboLanguages.set_active(self.defaultLanguage)
       print 'restored default settings'
@@ -200,6 +208,90 @@ def on_imgmenuHelpAbout_activate(self, widget, data=None):
       website_label='Ubuntu Trucchi',
       authors=['Muflone <[email protected]>'],
       translation=_('translation'), 
-      logo='gespeaker.png',
-      icon='gespeaker.png'
+      logo='gespeaker.svg',
+      icon='gespeaker.svg'
     )
+
+  def on_imgmenuEditStop_activate(self, widget, data=None):
+    "Press button to stop play, indirect cause button style"
+    self.btnPlayStop.set_active(False)
+
+  def on_imgmenuEditPause_activate(self, widget, data=None):
+    "Press button to pause or continue"
+    self.btnPause.set_active(not self.btnPause.get_active())
+
+  def checkIfPlaying(self):
+    "Check if a process is still running"
+    if self.espeak.isPlaying():
+      # Still running
+      return True
+    else:
+      # Disable stop buttons on menu and toolbar
+      self.btnPlayStop.set_active(False)
+      return False
+
+  def setStopCheck(self, active):
+    "Set/unset timeout check for running processes"
+    if active:
+      self.timeoutCheck = gobject.timeout_add(500, self.checkIfPlaying)
+    else:
+      gobject.source_remove(self.timeoutCheck)
+      self.timeoutCheck = None
+
+  def on_btnPlayStop_toggled(self, widget, data=None):
+    "Play and stop by pressing and releasing the button"
+    if self.btnPlayStop.get_active():
+      # Button active so we have to start to play
+      self.startPlaying()
+    else:
+      # If Pause button is active then we have to continue before to kill
+      if self.btnPause.get_active():
+        self.btnPause.set_active(False)
+      # Button inactive so we have to stop the playing
+      self.stopPlaying()
+
+  def on_btnPause_toggled(self, widget, data=None):
+    "Pause and unpause espeak and player by signals STOP/CONT"
+    self.espeak.pauseOrResume(self.btnPause.get_active())
+
+  def startPlaying(self):
+    "Play whole text"
+    self.playText(self.getText(self.txvBuffer))
+
+  def playText(self, text):
+    if text:
+      # Save buffer text on temporary filename and play it
+      tmpFile = open(self.tempFilename, mode='w')
+      tmpFile.write(text)
+      tmpFile.close()
+      cmd = '%s %s' % (cmdEspeak, argsEspeak % (
+          self.hscVolume.get_value(), 
+          self.hscPitch.get_value(),
+          self.hscSpeed.get_value(),
+          self.hscDelay.get_value(),
+          self.cboLanguages.get_model()[self.cboLanguages.get_active()][1] +
+          (self.radioVoiceFemale.get_active() and '+12' or ''),
+          self.tempFilename
+        )
+      )
+      print cmd
+      self.espeak.play(cmd, cmdPlayer)
+      # Enable stop buttons on menu and toolbar
+      self.imgmenuEditPlay.set_sensitive(False)
+      self.imgmenuEditStop.set_sensitive(True)
+      self.imgmenuEditPause.set_sensitive(True)
+      self.btnPause.set_sensitive(True)
+      self.btnPlayStop.set_label('gtk-media-stop')
+      # Enable check for running processes
+      self.setStopCheck(True)
+
+  def stopPlaying(self):
+    if self.espeak.stop():
+      # If stopped then disable buttons and menus
+      self.setStopCheck(False)
+      self.imgmenuEditPlay.set_sensitive(True)
+      self.imgmenuEditStop.set_sensitive(False)
+      self.imgmenuEditPause.set_sensitive(False)
+      self.btnPause.set_sensitive(False)
+      self.btnPlayStop.set_label('gtk-media-play')
+