class BackGround:
""" class that provides a timer that checks on background processes,
and method for adding new background workers. all workers should provide following methods:
ui(),bg() """
def __init__(self):
self.workers = {}
self.checkTimer = QTimer()
self.checkTimer.connect(self.checkTimer, SIGNAL("timeout()"), self.check)
self.checkTimer.start(500)
def check(self):
for worker in self.workers.keys():
if not self.workers[worker].THREAD.isAlive():
self.workers[worker].ui()
if self.workers[worker].SENDER:
self.workers[worker].SENDER.setEnabled(True)
del self.workers[worker]
else:
self.workers[worker].status()
def add(self, worker, sender=None):
if self.workers.has_key(str(worker)): # only add unique workers!
return False
worker.THREAD = Thread(args = [worker], target = worker.bg)
worker.THREAD.start()
if sender:
sender.setEnabled(False)
worker.SENDER = sender
self.workers[str(worker)] = worker
return True
class BackGround:
""" class that provides a timer that checks on background processes,
and method for adding new background workers. all workers should provide following methods:
ui(),bg() """
def __init__(self):
self.workers = {}
self.checkTimer = QTimer()
self.checkTimer.connect(self.checkTimer, SIGNAL("timeout()"),
self.check)
self.checkTimer.start(500)
def check(self):
for worker in self.workers.keys():
if not self.workers[worker].THREAD.isAlive():
self.workers[worker].ui()
if self.workers[worker].SENDER:
self.workers[worker].SENDER.setEnabled(True)
del self.workers[worker]
else:
self.workers[worker].status()
def add(self, worker, sender=None):
if self.workers.has_key(str(worker)): # only add unique workers!
return False
worker.THREAD = Thread(args=[worker], target=worker.bg)
worker.THREAD.start()
if sender:
sender.setEnabled(False)
worker.SENDER = sender
self.workers[str(worker)] = worker
return True
class updateCheckWorker:
""" class that provides new version checking in background """
def __init__(self, notifier):
from pyqlogger import VERSION
self.notifier = notifier
self.notified = LooseVersion(VERSION)
self.Timer = QTimer()
self.Timer.connect(self.Timer, SIGNAL("timeout()"), self.work)
self.Timer.start(60*60*1000)
def work(self):
try:
req = urllib2.urlopen('http://pyqlogger.berlios.de/ver.php')
line = req.readline()
newver = LooseVersion( line.strip() )
if newver > self.notified :
self.notified = newver
self.notifier.info("New version %s is available at the site!"%(str(newver)))
except:
pass
class updateCheckWorker:
""" class that provides new version checking in background """
def __init__(self, notifier):
from pyqlogger import VERSION
self.notifier = notifier
self.notified = LooseVersion(VERSION)
self.Timer = QTimer()
self.Timer.connect(self.Timer, SIGNAL("timeout()"), self.work)
self.Timer.start(60 * 60 * 1000)
def work(self):
try:
req = urllib2.urlopen('http://pyqlogger.berlios.de/ver.php')
line = req.readline()
newver = LooseVersion(line.strip())
if newver > self.notified:
self.notified = newver
self.notifier.info("New version %s is available at the site!" %
(str(newver)))
except:
pass
class qSlicerMultiVolumeExplorerSimplifiedModuleWidget:
def __init__(self, parent=None):
logging.debug(
"qSlicerMultiVolumeExplorerSimplifiedModuleWidget:init() called")
if not parent or not hasattr(parent, "layout"):
self.parent = slicer.qMRMLWidget()
self.parent.setLayout(QVBoxLayout())
else:
self.parent = parent
self.layout = self.parent.layout()
self._bgMultiVolumeNode = None
self._fgMultiVolumeNode = None
self.styleObserverTags = []
self.sliceWidgetsPerStyle = {}
self.chartPopupWindow = None
self.chartPopupSize = QSize(600, 300)
self.chartPopupPosition = QPoint(0, 0)
def hide(self):
self.widget.hide()
def show(self):
self.widget.show()
def setup(self):
self.widget = QWidget()
layout = QGridLayout()
self.widget.setLayout(layout)
self.layout.addWidget(self.widget)
self.widget.show()
self.layout = layout
self.setupInputFrame()
self.setupFrameControlFrame()
self.setupAdditionalFrames()
self.setupPlottingFrame()
self.setFramesEnabled(False)
self.timer = QTimer()
self.timer.setInterval(50)
self.setupConnections()
# initialize slice observers (from DataProbe.py)
# keep list of pairs: [observee,tag] so they can be removed easily
self.styleObserverTags = []
# keep a map of interactor styles to sliceWidgets so we can easily get sliceLogic
self.sliceWidgetsPerStyle = {}
self.refreshObservers()
def setupInputFrame(self, parent=None):
if not parent:
parent = self.layout
self.bgMultiVolumeSelector = slicer.qMRMLNodeComboBox()
self.bgMultiVolumeSelector.nodeTypes = ['vtkMRMLMultiVolumeNode']
self.bgMultiVolumeSelector.setMRMLScene(slicer.mrmlScene)
self.bgMultiVolumeSelector.addEnabled = 0
self._bgMultiVolumeSelectorLabel = QLabel('Input multivolume')
inputFrameWidget = QWidget()
self.inputFrameLayout = QFormLayout()
inputFrameWidget.setLayout(self.inputFrameLayout)
self.inputFrameLayout.addRow(self._bgMultiVolumeSelectorLabel,
self.bgMultiVolumeSelector)
parent.addWidget(inputFrameWidget)
def setupFrameControlFrame(self):
# TODO: initialize the slider based on the contents of the labels array
self.frameSlider = ctk.ctkSliderWidget()
self.frameSlider.setSizePolicy(QSizePolicy.Ignored,
QSizePolicy.Preferred)
self.frameLabel = QLabel('Current frame number')
self.playButton = QPushButton('Play')
self.playButton.toolTip = 'Iterate over multivolume frames'
self.playButton.checkable = True
frameControlHBox = QHBoxLayout()
frameControlHBox.addWidget(self.frameLabel)
frameControlHBox.addWidget(self.frameSlider)
frameControlHBox.addWidget(self.playButton)
self.inputFrameLayout.addRow(frameControlHBox)
def setupAdditionalFrames(self):
pass
def setupPlottingFrame(self, parent=None):
if not parent:
parent = self.layout
self.plottingFrameWidget = QWidget()
self.plottingFrameLayout = QGridLayout()
self.plottingFrameWidget.setLayout(self.plottingFrameLayout)
self._multiVolumeIntensityChart = MultiVolumeIntensityChartView()
self.popupChartButton = QPushButton("Undock chart")
self.popupChartButton.setCheckable(True)
self.plottingFrameLayout.addWidget(
self._multiVolumeIntensityChart.chartView)
self.plottingFrameLayout.addWidget(self.popupChartButton)
parent.addWidget(self.plottingFrameWidget)
def setupConnections(self):
self.parent.connect('mrmlSceneChanged(vtkMRMLScene*)',
self.onVCMRMLSceneChanged)
self.bgMultiVolumeSelector.connect('currentNodeChanged(vtkMRMLNode*)',
self.onBackgroundInputChanged)
self.playButton.connect('toggled(bool)', self.onPlayButtonToggled)
self.frameSlider.connect('valueChanged(double)', self.onSliderChanged)
self.timer.connect('timeout()', self.goToNext)
self.popupChartButton.connect('toggled(bool)',
self.onDockChartViewToggled)
def onDockChartViewToggled(self, checked):
if checked:
self.chartPopupWindow = QDialog()
self.chartPopupWindow.setWindowFlags(
PythonQt.QtCore.Qt.WindowStaysOnTopHint)
layout = QGridLayout()
self.chartPopupWindow.setLayout(layout)
layout.addWidget(self._multiVolumeIntensityChart.chartView)
layout.addWidget(self.popupChartButton)
self.chartPopupWindow.finished.connect(self.dockChartView)
self.chartPopupWindow.resize(self.chartPopupSize)
self.chartPopupWindow.move(self.chartPopupPosition)
self.chartPopupWindow.show()
self.popupChartButton.setText("Dock chart")
self._multiVolumeIntensityChart.chartView.show()
else:
self.chartPopupWindow.close()
def dockChartView(self):
self.chartPopupSize = self.chartPopupWindow.size
self.chartPopupPosition = self.chartPopupWindow.pos
self.plottingFrameLayout.addWidget(
self._multiVolumeIntensityChart.chartView)
self.plottingFrameLayout.addWidget(self.popupChartButton)
self.popupChartButton.setText("Undock chart")
self.popupChartButton.disconnect('toggled(bool)',
self.onDockChartViewToggled)
self.popupChartButton.checked = False
self.popupChartButton.connect('toggled(bool)',
self.onDockChartViewToggled)
def onSliderChanged(self, frameId):
if self._bgMultiVolumeNode is None:
return
newValue = int(frameId)
self.setCurrentFrameNumber(newValue)
def onVCMRMLSceneChanged(self, mrmlScene):
logging.debug(
"qSlicerMultiVolumeExplorerSimplifiedModuleWidget:onVCMRMLSceneChanged"
)
self.bgMultiVolumeSelector.setMRMLScene(slicer.mrmlScene)
self.onBackgroundInputChanged()
def refreshGUIForNewBackgroundImage(self):
self._multiVolumeIntensityChart.reset()
self.setFramesEnabled(True)
if self._fgMultiVolumeNode and self._bgMultiVolumeNode:
Helper.SetBgFgVolumes(self._bgMultiVolumeNode.GetID(),
self._fgMultiVolumeNode.GetID())
else:
Helper.SetBgVolume(self._bgMultiVolumeNode.GetID())
self.refreshFrameSlider()
self._multiVolumeIntensityChart.bgMultiVolumeNode = self._bgMultiVolumeNode
self.refreshObservers()
def getBackgroundMultiVolumeNode(self):
return self.bgMultiVolumeSelector.currentNode()
def onBackgroundInputChanged(self):
self._bgMultiVolumeNode = self.getBackgroundMultiVolumeNode()
if self._bgMultiVolumeNode is not None:
self.refreshGUIForNewBackgroundImage()
else:
self.setFramesEnabled(False)
def onPlayButtonToggled(self, checked):
if self._bgMultiVolumeNode is None:
return
if checked:
self.timer.start()
self.playButton.text = 'Stop'
else:
self.timer.stop()
self.playButton.text = 'Play'
def processEvent(self, observee, event):
# logging.debug("processing event %s" % event)
if self._bgMultiVolumeNode is None:
return
# TODO: use a timer to delay calculation and compress events
if event == 'LeaveEvent':
# reset all the readouts
# TODO: reset the label text
return
if not self.sliceWidgetsPerStyle.has_key(observee):
return
interactor = observee.GetInteractor()
self.createChart(self.sliceWidgetsPerStyle[observee],
interactor.GetEventPosition())
def createChart(self, sliceWidget, position):
self._multiVolumeIntensityChart.createChart(sliceWidget, position)
def setCurrentFrameNumber(self, frameNumber):
mvDisplayNode = self._bgMultiVolumeNode.GetDisplayNode()
mvDisplayNode.SetFrameComponent(frameNumber)
def setFramesEnabled(self, enabled):
pass
def refreshObservers(self):
""" When the layout changes, drop the observers from
all the old widgets and create new observers for the
newly created widgets"""
self.removeObservers()
# get new slice nodes
layoutManager = slicer.app.layoutManager()
sliceNodeCount = slicer.mrmlScene.GetNumberOfNodesByClass(
'vtkMRMLSliceNode')
for nodeIndex in xrange(sliceNodeCount):
# find the widget for each node in scene
sliceNode = slicer.mrmlScene.GetNthNodeByClass(
nodeIndex, 'vtkMRMLSliceNode')
sliceWidget = layoutManager.sliceWidget(sliceNode.GetLayoutName())
if sliceWidget:
# add observers and keep track of tags
style = sliceWidget.sliceView().interactorStyle()
self.sliceWidgetsPerStyle[style] = sliceWidget
events = ("MouseMoveEvent", "EnterEvent", "LeaveEvent")
for event in events:
tag = style.AddObserver(event, self.processEvent)
self.styleObserverTags.append([style, tag])
def removeObservers(self):
for observee, tag in self.styleObserverTags:
observee.RemoveObserver(tag)
self.styleObserverTags = []
self.sliceWidgetsPerStyle = {}
def refreshFrameSlider(self):
self.frameSlider.minimum = 0
if not self._bgMultiVolumeNode:
self.frameSlider.maximum = 0
return
nFrames = self._bgMultiVolumeNode.GetNumberOfFrames()
self.frameSlider.maximum = nFrames - 1
def goToNext(self):
currentElement = self.frameSlider.value
currentElement += 1
if currentElement > self.frameSlider.maximum:
currentElement = 0
self.frameSlider.value = currentElement
from ctk import *
from qt import QTimer
w = ctkMatrixWidget()
w.show()
if not _ctkPythonConsoleInstance.isInteractive:
#QTimer().singleShot(0, app(), SLOT('quit()'))
t = QTimer()
t.setInterval(250)
t.connect('timeout()', app(), 'quit()')
t.start()
class qSlicerMultiVolumeExplorerSimplifiedModuleWidget:
def __init__(self, parent=None):
logging.debug("qSlicerMultiVolumeExplorerSimplifiedModuleWidget:init() called")
if not parent or not hasattr(parent, "layout"):
self.parent = slicer.qMRMLWidget()
self.parent.setLayout(QVBoxLayout())
else:
self.parent = parent
self.layout = self.parent.layout()
self._bgMultiVolumeNode = None
self._fgMultiVolumeNode = None
self.styleObserverTags = []
self.sliceWidgetsPerStyle = {}
self.chartPopupWindow = None
self.chartPopupSize = QSize(600, 300)
self.chartPopupPosition = QPoint(0,0)
def hide(self):
self.widget.hide()
def show(self):
self.widget.show()
def setup(self):
self.widget = QWidget()
layout = QGridLayout()
self.widget.setLayout(layout)
self.layout.addWidget(self.widget)
self.widget.show()
self.layout = layout
self.setupInputFrame()
self.setupFrameControlFrame()
self.setupAdditionalFrames()
self.setupPlottingFrame()
self.setFramesEnabled(False)
self.timer = QTimer()
self.timer.setInterval(50)
self.setupConnections()
# initialize slice observers (from DataProbe.py)
# keep list of pairs: [observee,tag] so they can be removed easily
self.styleObserverTags = []
# keep a map of interactor styles to sliceWidgets so we can easily get sliceLogic
self.sliceWidgetsPerStyle = {}
self.refreshObservers()
def setupInputFrame(self, parent=None):
if not parent:
parent = self.layout
self.bgMultiVolumeSelector = slicer.qMRMLNodeComboBox()
self.bgMultiVolumeSelector.nodeTypes = ['vtkMRMLMultiVolumeNode']
self.bgMultiVolumeSelector.setMRMLScene(slicer.mrmlScene)
self.bgMultiVolumeSelector.addEnabled = 0
self._bgMultiVolumeSelectorLabel = QLabel('Input multivolume')
inputFrameWidget = QWidget()
self.inputFrameLayout = QFormLayout()
inputFrameWidget.setLayout(self.inputFrameLayout)
self.inputFrameLayout.addRow(self._bgMultiVolumeSelectorLabel, self.bgMultiVolumeSelector)
parent.addWidget(inputFrameWidget)
def setupFrameControlFrame(self):
# TODO: initialize the slider based on the contents of the labels array
self.frameSlider = ctk.ctkSliderWidget()
self.frameLabel = QLabel('Current frame number')
self.playButton = QPushButton('Play')
self.playButton.toolTip = 'Iterate over multivolume frames'
self.playButton.checkable = True
frameControlHBox = QHBoxLayout()
frameControlHBox.addWidget(self.frameLabel)
frameControlHBox.addWidget(self.frameSlider)
frameControlHBox.addWidget(self.playButton)
self.inputFrameLayout.addRow(frameControlHBox)
def setupAdditionalFrames(self):
pass
def setupPlottingFrame(self, parent=None):
if not parent:
parent = self.layout
self.plottingFrameWidget = QWidget()
self.plottingFrameLayout = QGridLayout()
self.plottingFrameWidget.setLayout(self.plottingFrameLayout)
self._multiVolumeIntensityChart = MultiVolumeIntensityChartView()
self.popupChartButton = QPushButton("Undock chart")
self.popupChartButton.setCheckable(True)
self.plottingFrameLayout.addWidget(self._multiVolumeIntensityChart.chartView)
self.plottingFrameLayout.addWidget(self.popupChartButton)
parent.addWidget(self.plottingFrameWidget)
def setupConnections(self):
self.parent.connect('mrmlSceneChanged(vtkMRMLScene*)', self.onVCMRMLSceneChanged)
self.bgMultiVolumeSelector.connect('currentNodeChanged(vtkMRMLNode*)', self.onBackgroundInputChanged)
self.playButton.connect('toggled(bool)', self.onPlayButtonToggled)
self.frameSlider.connect('valueChanged(double)', self.onSliderChanged)
self.timer.connect('timeout()', self.goToNext)
self.popupChartButton.connect('toggled(bool)', self.onDockChartViewToggled)
def onDockChartViewToggled(self, checked):
if checked:
self.chartPopupWindow = QDialog()
self.chartPopupWindow.setWindowFlags(PythonQt.QtCore.Qt.WindowStaysOnTopHint)
layout = QGridLayout()
self.chartPopupWindow.setLayout(layout)
layout.addWidget(self._multiVolumeIntensityChart.chartView)
layout.addWidget(self.popupChartButton)
self.chartPopupWindow.finished.connect(self.dockChartView)
self.chartPopupWindow.resize(self.chartPopupSize)
self.chartPopupWindow.move(self.chartPopupPosition)
self.chartPopupWindow.show()
self.popupChartButton.setText("Dock chart")
self._multiVolumeIntensityChart.chartView.show()
else:
self.chartPopupWindow.close()
def dockChartView(self):
self.chartPopupSize = self.chartPopupWindow.size
self.chartPopupPosition = self.chartPopupWindow.pos
self.plottingFrameLayout.addWidget(self._multiVolumeIntensityChart.chartView)
self.plottingFrameLayout.addWidget(self.popupChartButton)
self.popupChartButton.setText("Undock chart")
self.popupChartButton.disconnect('toggled(bool)', self.onDockChartViewToggled)
self.popupChartButton.checked = False
self.popupChartButton.connect('toggled(bool)', self.onDockChartViewToggled)
def onSliderChanged(self, frameId):
if self._bgMultiVolumeNode is None:
return
newValue = int(frameId)
self.setCurrentFrameNumber(newValue)
def onVCMRMLSceneChanged(self, mrmlScene):
logging.debug("qSlicerMultiVolumeExplorerSimplifiedModuleWidget:onVCMRMLSceneChanged")
self.bgMultiVolumeSelector.setMRMLScene(slicer.mrmlScene)
self.onBackgroundInputChanged()
def refreshGUIForNewBackgroundImage(self):
self._multiVolumeIntensityChart.reset()
self.setFramesEnabled(True)
if self._fgMultiVolumeNode and self._bgMultiVolumeNode:
Helper.SetBgFgVolumes(self._bgMultiVolumeNode.GetID(), self._fgMultiVolumeNode.GetID())
else:
Helper.SetBgVolume(self._bgMultiVolumeNode.GetID())
self.refreshFrameSlider()
self._multiVolumeIntensityChart.bgMultiVolumeNode = self._bgMultiVolumeNode
self.refreshObservers()
def getBackgroundMultiVolumeNode(self):
return self.bgMultiVolumeSelector.currentNode()
def onBackgroundInputChanged(self):
self._bgMultiVolumeNode = self.getBackgroundMultiVolumeNode()
if self._bgMultiVolumeNode is not None:
self.refreshGUIForNewBackgroundImage()
else:
self.setFramesEnabled(False)
def onPlayButtonToggled(self, checked):
if self._bgMultiVolumeNode is None:
return
if checked:
self.timer.start()
self.playButton.text = 'Stop'
else:
self.timer.stop()
self.playButton.text = 'Play'
def processEvent(self, observee, event):
# logging.debug("processing event %s" % event)
if self._bgMultiVolumeNode is None:
return
# TODO: use a timer to delay calculation and compress events
if event == 'LeaveEvent':
# reset all the readouts
# TODO: reset the label text
return
if not self.sliceWidgetsPerStyle.has_key(observee):
return
interactor = observee.GetInteractor()
self.createChart(self.sliceWidgetsPerStyle[observee], interactor.GetEventPosition())
def createChart(self, sliceWidget, position):
self._multiVolumeIntensityChart.createChart(sliceWidget, position)
def setCurrentFrameNumber(self, frameNumber):
mvDisplayNode = self._bgMultiVolumeNode.GetDisplayNode()
mvDisplayNode.SetFrameComponent(frameNumber)
def setFramesEnabled(self, enabled):
pass
def refreshObservers(self):
""" When the layout changes, drop the observers from
all the old widgets and create new observers for the
newly created widgets"""
self.removeObservers()
# get new slice nodes
layoutManager = slicer.app.layoutManager()
sliceNodeCount = slicer.mrmlScene.GetNumberOfNodesByClass('vtkMRMLSliceNode')
for nodeIndex in xrange(sliceNodeCount):
# find the widget for each node in scene
sliceNode = slicer.mrmlScene.GetNthNodeByClass(nodeIndex, 'vtkMRMLSliceNode')
sliceWidget = layoutManager.sliceWidget(sliceNode.GetLayoutName())
if sliceWidget:
# add observers and keep track of tags
style = sliceWidget.sliceView().interactorStyle()
self.sliceWidgetsPerStyle[style] = sliceWidget
events = ("MouseMoveEvent", "EnterEvent", "LeaveEvent")
for event in events:
tag = style.AddObserver(event, self.processEvent)
self.styleObserverTags.append([style,tag])
def removeObservers(self):
for observee,tag in self.styleObserverTags:
observee.RemoveObserver(tag)
self.styleObserverTags = []
self.sliceWidgetsPerStyle = {}
def refreshFrameSlider(self):
self.frameSlider.minimum = 0
if not self._bgMultiVolumeNode:
self.frameSlider.maximum = 0
return
nFrames = self._bgMultiVolumeNode.GetNumberOfFrames()
self.frameSlider.maximum = nFrames - 1
def goToNext(self):
currentElement = self.frameSlider.value
currentElement += 1
if currentElement > self.frameSlider.maximum:
currentElement = 0
self.frameSlider.value = currentElement
from ctk import *
from qt import QTimer
# Test display of a CTK widget
w = ctkMatrixWidget()
w.show()
# Test command execution using Python manager
pythonManager = _ctkPythonManagerInstance
pythonManager.executeString("variableInPythonConsole=523")
try:
print("variableInPythonConsole was successfully set to {0}".format(
variableInPythonConsole))
except:
print "PythonManager.executeString failed"
qt.QApplication.exit(1)
if not _ctkPythonConsoleInstance.isInteractive:
#QTimer().singleShot(0, app(), SLOT('quit()'))
t = QTimer()
t.setInterval(250)
t.connect('timeout()', app(), 'quit()')
t.start()
from ctk import *
from qt import QTimer
# Test display of a CTK widget
w = ctkMatrixWidget()
w.show()
# Test command execution using Python manager
pythonManager = _ctkPythonManagerInstance
pythonManager.executeString("variableInPythonConsole=523")
try:
print ("variableInPythonConsole was successfully set to {0}".format(variableInPythonConsole))
except:
print "PythonManager.executeString failed"
qt.QApplication.exit(1)
if not _ctkPythonConsoleInstance.isInteractive:
# QTimer().singleShot(0, app(), SLOT('quit()'))
t = QTimer()
t.setInterval(250)
t.connect("timeout()", app(), "quit()")
t.start()
class KTVMainWindow(KParts.MainWindow): """Implements the main KatchTV application window.""" def __init__(self, title): """Initialises a new window object.""" self._stopped = True KParts.MainWindow.__init__(self, None, str(title)) self.setCaption(config.appFullVersion) self._initWidgets() self.__mediaManager = Media.Manager() self.__downloadTimer = QTimer() self.__downloadTimer.connect(self.__downloadTimer,SIGNAL(str(u"timeout()")), self.__updateDownloads) self.browser.goToURL(u'katchtv:welcome:') def saveAll(self): self.__mediaManager._saveItems() def __updateDownloads(self): self.__mediaManager.beginNewDownloads() def enableThreads(self): # start everything, and mark as running self.__downloadTimer.start(config.updateDownloadsTimerMillisecs) self.bmarksList.enableThreads() self._stopped = False def disableThreads(self): # stop in the order of slowest to fastest, hoping it'll # all finish around the same time self.bmarksList.disableThreads() self.__mediaManager.stop() self.__downloadTimer.stop() self._stopped = True def getMediaManager(self): return self.__mediaManager def isStopped(self): """Returns True if the application should not run yet (ie, if it has not been fully initialised).""" return self._stopped def _initWidgets(self): """Initialises all of the main widgets in the window.""" global appRoot appIconPath = os.path.join(appRoot, "images/miniicon.png") self.setIcon(QPixmap(appIconPath)) self.mainBox = QHBox(self) self.mainSplitter = QSplitter(self.mainBox) self.bmarksListBox = QVBox(self.mainSplitter) self.bmarksListBox.setMaximumWidth(250) self.bmarksList = KTVBookmarksListView.KTVBookmarksListView(self.bmarksListBox, self) QObject.connect(self.bmarksList, SIGNAL(str(u'doubleClicked(QListViewItem *)')), self._bookmarkChosen) self.browserBox = QVBox(self.mainSplitter) self.browser = KTVHTMLPart.KTVHTMLPart(self.browserBox, self) self.setCentralWidget(self.mainBox) self._buttonBox = QHBox(self.bmarksListBox) self._addButton = QPushButton(u"&Add", self._buttonBox, str(u"")) QObject.connect(self._addButton, SIGNAL(str(u'clicked()')), self._addItem) self._deleteButton = QPushButton(u"&Delete", self._buttonBox, str(u"")) QObject.connect(self._deleteButton, SIGNAL(str(u'clicked()')), self._deleteItem) self._backButton = QPushButton(u"&Back", self.bmarksListBox, str(u"")) QObject.connect(self._backButton, SIGNAL(str(u'clicked()')), self._back) self._helpButton = QPushButton(u"&Help", self.bmarksListBox, str(u"")) QObject.connect(self._helpButton, SIGNAL(str(u'clicked()')), self._help) self.statusBar().message(u"KatchTV is now ready for use.") def _help(self): """A hook (a Qt signal slot, actually) which is called when the user clicks the "Help" button. Loads the manual into the browser.""" self.browser.goToURL(u'katchtv:help:') def _back(self): """A hook (a Qt signal slot) which is called when the user clicks the "Back" button. Navigates one step back through the browser history.""" self.browser.loadPreviousPage() def _addItem(self): """A hook (Qt signal slot) which is called when the user clicks the "Add" button. Presents a dialog, asking the user for the feed URI to add.""" validURI = False firstTry = True while not validURI: if firstTry: uri, confirmed = KInputDialog.text(u"Add Feed Bookmark", QString(u"Please enter the channel's feed URI (or URL) here.")) uri = unicode(uri) else: uri, confirmed = KInputDialog.text(u"Add Feed Bookmark", u"The URI you entered was invalid. Please try again, or cancel.", QString(uri)) uri = unicode(uri) firstTry = False if confirmed: validURI = utils.isAFeed(uri) else: # user cancelled the input return feed = Feed.FeedCache.getFeedFromURINoLock(uri) self.bmarksList.addChannel(feed) def _deleteItem(self): """A hook (Qt signal slot) which is called when the user clicks the Delete button. Deletes the selected item, if that item is a subscribed channel. Otherwise, informs the user that they cannot delete the item.""" self.bmarksList.delCurrentItem() def _bookmarkChosen(self, item): """A hook (Qt signal slot) which is called when the user double-clicks on an item in the listview. Checks if the item has a URI column entry, and if so, navigates to it.""" title = item.text(KTVBookmarksListView.COL_NAME) uri = item.text(KTVBookmarksListView.COL_URI) if title != u'' and uri != u'': self.browser.goToURL(uri) def getBookmarksList(self): return self.bmarksList
