src/wizardw.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4
   5 # Imports
   6 import dbus, jack, os
   7 import shared, ui_wizard
   8 from PyQt4.QtCore import QFile, QIODevice, QTextStream, SIGNAL
   9 from PyQt4.QtGui import QWizard
  10 from PyKDE4.kdecore import i18n
  11 from PyKDE4.kdeui import KIconLoader, KMessageBox
  12
  13 # Connect to Jack DBus Service
  14 bus = dbus.SessionBus()
  15 jackBus = bus.get_object("org.jackaudio.service", "/org/jackaudio/Controller")
  16
  17 # Check if Jack is started, start it if not
  18 if not bool(jackBus.IsStarted()):
  19   print "Jack is not started, trying to starting it now..."
  20   jackBus.StartServer()
  21
  22 # Enable Jack for Klaudia
  23 try:
  24   jack.attach("Klaudia")
  25   jackStarted = True
  26 except:
  27   jackStarted = False
  28
  29
  30 # Main Window
  31 class WizardW(QWizard, ui_wizard.Ui_WizardW):
  32     def __init__(self, *args):
  33         QWizard.__init__(self, *args)
  34         self.setupUi(self)
  35
  36         # Check for Jack before anything else
  37         if not jackStarted:
  38           print "Could not start Jack, quiting..."
  39           KMessageBox.error(self, i18n("Could not auto-start Jack.\nPlease close all audio applications and start Jack.\nKlaudia will quit now."), i18n("Error"))
  40           exit(-1)
  41
  42         # Set-up
  43         self.b_icon.setIcon("inode-directory")
  44         self.b_icon.setIconType(KIconLoader.Desktop, KIconLoader.Place)
  45
  46         # Connections
  47         self.connect(self.b_icon, SIGNAL("iconChanged(QString)"), self.changedIcon)
  48         self.connect(self.r_newp, SIGNAL("clicked(bool)"), self.enableNext)
  49         self.connect(self.r_loadp, SIGNAL("clicked()"), self.checkUrl_Load)
  50         self.connect(self.url_newp, SIGNAL("urlSelected(KUrl)"), self.checkForNewProjectFolder)
  51         self.connect(self.url_loadp, SIGNAL("urlSelected(KUrl)"), self.checkForProjectFile)
  52         self.connect(self.url_newp, SIGNAL("textChanged(QString)"), self.checkUrl_New)
  53         self.connect(self.url_loadp, SIGNAL("textChanged(QString)"), self.checkUrl_Load)
  54         self.connect(self, SIGNAL("currentIdChanged(int)"), self.changedPage)
  55         self.connect(self, SIGNAL("accepted()"), self.Accept)
  56
  57     def changedIcon(self, icon):
  58         shared.p_icon = icon
  59
  60     def changedPage(self, pageN):
  61         if (pageN == 1):
  62           if (self.r_loadp.isChecked()):
  63             self.accept()
  64           else:
  65             self.checkUrl_New()
  66
  67     def checkForNewProjectFolder(self, pUrl):
  68         if not pUrl.isLocalFile():
  69           KMessageBox.error(self, i18n("The Selected folder cannot be used for a Klaudia project!"), i18n("Error"))
  70
  71     def checkForProjectFile(self, pUrl):
  72         if not pUrl.isLocalFile():
  73           KMessageBox.error(self, i18n("The Selected folder cannot be used for a Klaudia project!"), i18n("Error"))
  74         else:
  75           if (not os.path.exists(pUrl.toLocalFile()+"/project.klaudia")):
  76             KMessageBox.sorry(self, i18n("The Selected folder does not contain a Klaudia project!"), i18n("Sorry"))
  77
  78     def checkUrl_New(self, url=""):
  79         if not url: url = self.url_newp.text()
  80         if (os.path.exists(url)):
  81           self.enableFinish(True)
  82         else:
  83           self.enableFinish(False)
  84
  85     def checkUrl_Load(self, url=""):
  86         if not url: url = self.url_loadp.text()
  87         if (os.path.exists(url+"/project.klaudia")):
  88           self.enableNext(True)
  89         else:
  90           self.enableNext(False)
  91
  92     def enableNext(self, check):
  93         self.button(QWizard.NextButton).setEnabled(check)
  94
  95     def enableFinish(self, check):
  96         self.button(QWizard.FinishButton).setEnabled(check)
  97
  98     def Accept(self):
  99         if (self.r_loadp.isChecked()):
 100           url = self.url_loadp.text()
 101           shared.p_folder = url
 102           shared.setIconFromFolder(url)
 103         else:
 104           url = self.url_newp.text()
 105           shared.p_folder = url
 106           filename = QFile(url+"/project.klaudia")
 107           if not filename.open(QIODevice.WriteOnly):
 108             KMessageBox.error(self, i18n("Cannot write to selected directory - Permission Denied"), i18n("Error"))
 109             shared.exit_(-2)
 110             #raise IOError, unicode(filename.errorString())
 111           stream = QTextStream(filename)
 112           stream.setCodec("UTF-8")
 113           stream << ("<?xml version='1.0' encoding='UTF-8'?>\n"
 114                      "<!DOCTYPE KLAUDIA>\n"
 115                      "<KLAUDIA VERSION='0.2'>\n"
 116                      "<Properties>\n"
 117                      " <Name>%s</Name>\n"
 118                      " <Author>%s</Author>\n"
 119                      " <Composer>%s</Composer>\n"
 120                      " <Album>%s</Album>\n"
 121                      " <Track>%s</Track>\n"
 122                      " <BPM>%s</BPM>\n"
 123                      " <Time-Start>00:00:00</Time-Start>\n"
 124                      " <Time-End>%s</Time-End>\n"
 125                      "</Properties>\n"
 126                      "</KLAUDIA>\n" % (self.line_name.text(), self.line_author.text(), self.line_composer.text(),
 127                      self.line_album.text(), self.spin_track.text(), self.spin_bpm.text(), self.time_total.text()))
 128           iconfile = open(url+"/.directory", "w")
 129           iconfile.write("[Desktop Entry]\nIcon=%s" % str(self.b_icon.icon()))
 130           iconfile.close()