sface/mainwindow.py

   1
   2 import os
   3 import time
   4
   5 from PyQt4.QtCore import *
   6 from PyQt4.QtGui import *
   7
   8 from sface.config import config
   9 from sface.screens.configscreen import ConfigScreen
  10 from sface.screens.mainscreen import MainScreen
  11
  12 class Nav(QWidget):
  13     def __init__(self, parent=None):
  14         QWidget.__init__(self, parent)
  15
  16         self.title = QLabel("", self)
  17         self.link = QLabel("", self)
  18         self.link.setAlignment(Qt.AlignRight)
  19
  20         hlayout = QHBoxLayout()
  21         hlayout.addWidget(self.title)
  22         hlayout.addStretch()
  23         hlayout.addWidget(self.link)
  24         self.setLayout(hlayout)
  25
  26     def setTitle(self, title):
  27         self.title.setText(title)
  28
  29     def setLink(self, link):
  30         self.link.setText(link)
  31
  32
  33 class Status(QLabel):
  34     def __init__(self, parent=None):
  35         QLabel.__init__(self, "", parent)
  36         self.sliceUpdateDate()
  37
  38     def set(self, msg, timeout):
  39         self.setText(msg)
  40         if timeout:
  41             QTimer.singleShot(timeout, self.reset)
  42
  43     def sliceUpdateDate(self):
  44         rspec_file = config.getSliceRSpecFile()
  45         if not os.path.exists(rspec_file):
  46             return
  47
  48         creation_time = os.stat(rspec_file).st_ctime
  49         last_update = time.ctime(creation_time)
  50         self.set("Slice data last updated on %s" % last_update, timeout=None)
  51
  52     def reset(self):
  53         self.setText("")
  54         QTimer.singleShot(1500, self.sliceUpdateDate)
  55
  56 class MainWindow(QWidget):
  57     def __init__(self, parent=None):
  58         QWidget.__init__(self, parent)
  59
  60         self.pix = QLabel(self)
  61         self.config_screen = ConfigScreen(self)
  62         self.main_screen = MainScreen(self)
  63
  64         self.screens = QStackedWidget(self)
  65         self.screens.addWidget(self.main_screen)
  66         self.screens.addWidget(self.config_screen)
  67         self.screens.addWidget(self.pix)
  68         self.next_screen = None
  69
  70         self.nav = Nav(self)
  71         self.nav.setTitle(self.main_screen.getTitleText())
  72         self.nav.setLink(self.config_screen.getLinkText())
  73
  74         self.status = Status(self)
  75
  76         layout = QVBoxLayout()
  77         layout.addWidget(self.nav)
  78         layout.addWidget(self.screens)
  79         layout.addWidget(self.status)
  80         self.setLayout(layout)
  81         self.resize(800, 600)
  82
  83         self.connect(self.nav.link, SIGNAL('linkActivated(QString)'),
  84                      self.animateToScreen)
  85
  86
  87     def animatePixmap(self, y):
  88         self.pix.move(0, y)
  89
  90     def animateToScreen(self, link):
  91         if link == self.config_screen.name:
  92             self.next_screen = self.config_screen
  93         elif link == self.main_screen.name:
  94             self.next_screen = self.main_screen
  95
  96         pixmap = QPixmap(self.screens.size())
  97         self.screens.currentWidget().render(pixmap)
  98         self.screens.setCurrentWidget(self.pix)
  99         self.pix.setPixmap(pixmap)
 100
 101         timeLine = QTimeLine(500, self)
 102         timeLine.setFrameRange(0, self.screens.height());
 103         self.connect(timeLine, SIGNAL('frameChanged(int)'), self.animatePixmap)
 104         self.connect(timeLine, SIGNAL('finished()'), self.toNextScreen)
 105         timeLine.start()
 106
 107
 108     def toNextScreen(self):
 109         if self.next_screen == self.config_screen:
 110             self.toConfigScreen()
 111         elif self.next_screen == self.main_screen:
 112             self.toMainScreen()
 113
 114     def toConfigScreen(self):
 115         self.screens.setCurrentWidget(self.config_screen)
 116         self.nav.setLink(self.main_screen.getLinkText())
 117         self.nav.setTitle(self.config_screen.getTitleText())
 118
 119     def toMainScreen(self):
 120         self.screens.setCurrentWidget(self.main_screen)
 121         self.nav.setLink(self.config_screen.getLinkText())
 122         self.nav.setTitle(self.main_screen.getTitleText())
 123
 124     def setStatus(self, msg, timeout):
 125         self.status.set(msg, timeout)