def updateExampleSummary(self):
if self.examples[self.currentExample].has_key('image files'):
self.currentFrame.metadata["fade"] = -15
self.currentFrame.setTarget(
QtCore.QPointF((self.currentFrame.position() -
QtCore.QPointF(0.5 * self.width(), 0))))
self.slideshowFrame = (self.slideshowFrame + 1) % len(
self.examples[self.currentExample]['image files'])
image = QtGui.QImage(self.examples[self.currentExample]
['image files'][self.slideshowFrame])
imageSize = self.currentFrame.maxSize
imagePosition = QtCore.QPointF(
self.width() - imageSize.width() / 2,
self.currentFrame.position().y())
self.currentFrame = ImageShape(image,
QtCore.QPointF(imagePosition),
QtCore.QSizeF(imageSize))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(
QtCore.QPointF(self.width() / 2 - imageSize.width() / 2,
imagePosition.y()))
self.display.appendShape(self.currentFrame)
def updateExampleSummary(self):
if self.examples[self.currentExample].has_key("image files"):
self.currentFrame.metadata["fade"] = -15
self.currentFrame.setTarget(
QtCore.QPointF((self.currentFrame.position() - QtCore.QPointF(0.5 * self.width(), 0)))
)
self.slideshowFrame = (self.slideshowFrame + 1) % len(self.examples[self.currentExample]["image files"])
image = QtGui.QImage(self.examples[self.currentExample]["image files"][self.slideshowFrame])
imageSize = self.currentFrame.maxSize
imagePosition = QtCore.QPointF(self.width() - imageSize.width() / 2, self.currentFrame.position().y())
self.currentFrame = ImageShape(image, QtCore.QPointF(imagePosition), QtCore.QSizeF(imageSize))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(QtCore.QPointF(self.width() / 2 - imageSize.width() / 2, imagePosition.y()))
self.display.appendShape(self.currentFrame)
def showExampleSummary(self, uniquename):
self.newPage()
self.fadeShapes()
self.currentExample = uniquename
horizontalMargin = 0.025 * self.width()
verticalMargin = 0.025 * self.height()
title = self.addTitle(self.examples[uniquename]['name'],
verticalMargin)
titleBackground = self.addTitleBackground(title)
topMargin = 2 * verticalMargin + titleBackground.rect().bottom()
bottomMargin = self.height() - 8 * verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
(bottomMargin + 4.8 * verticalMargin - topMargin) /
self.maximumLabels)
footerTextHeight = self.fontRatio * step
leftMargin = 3 * horizontalMargin
rightMargin = self.width() - 3 * horizontalMargin
if self.examples[self.currentExample].has_key('description'):
description = DocumentShape(
self.examples[self.currentExample]['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space), 0)
description.metadata["fade"] = 10
description.setPosition(
QtCore.QPointF(
description.position().x(),
0.8 * self.height() - description.rect().height()))
self.display.appendShape(description)
space = description.position().y() - topMargin - 2 * verticalMargin
if self.examples[self.currentExample].has_key('image files'):
image = QtGui.QImage(
self.examples[self.currentExample]['image files'][0])
imageMaxSize = QtCore.QSizeF(self.width() - 8 * horizontalMargin,
space)
self.currentFrame = ImageShape(
image,
QtCore.QPointF(self.width() - imageMaxSize.width() / 2,
topMargin), QtCore.QSizeF(imageMaxSize))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(
QtCore.QPointF(self.width() / 2 - imageMaxSize.width() / 2,
topMargin))
self.display.appendShape(self.currentFrame)
if len(self.examples[self.currentExample]['image files']) > 1:
self.connect(self.slideshowTimer, QtCore.SIGNAL("timeout()"),
self.updateExampleSummary)
self.slideshowFrame = 0
self.slideshowTimer.start()
maxSize = QtCore.QSizeF(0.3 * self.width(), 2 * verticalMargin)
leftMargin = 0.0
rightMargin = 0.0
backButton = TitleShape(
self.currentCategory, self.font(), QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(0.1 * self.width(), self.height()),
QtCore.QSizeF(maxSize), QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
backButton.setTarget(
QtCore.QPointF(backButton.position().x(),
self.height() - 5.2 * verticalMargin))
self.display.appendShape(backButton)
maxWidth = backButton.rect().width()
textHeight = backButton.rect().height()
extra = (3 * verticalMargin - textHeight) / 4
path = QtGui.QPainterPath()
path.moveTo(-extra, -extra)
path.lineTo(-4 * extra, textHeight / 2)
path.lineTo(-extra, textHeight + extra)
path.lineTo(maxWidth + 2 * extra, textHeight + extra)
path.lineTo(maxWidth + 2 * extra, -extra)
path.closeSubpath()
buttonBackground = PanelShape(
path, QtGui.QBrush(QtGui.QColor("#a6ce39")),
QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(backButton.position()),
QtCore.QSizeF(maxWidth + 6 * extra, textHeight + 2 * extra))
buttonBackground.metadata["category"] = self.currentCategory
buttonBackground.setInteractive(True)
buttonBackground.setTarget(QtCore.QPointF(backButton.target()))
self.display.insertShape(0, buttonBackground)
leftMargin = buttonBackground.rect().right()
if self.examples[self.currentExample].has_key('absolute path'):
launchCaption = TitleShape(
self.tr("Launch"), self.font(), QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(0.0, 0.0), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
launchCaption.setPosition(
QtCore.QPointF(
0.9 * self.width() - launchCaption.rect().width(),
self.height()))
launchCaption.setTarget(
QtCore.QPointF(launchCaption.position().x(),
self.height() - 5.2 * verticalMargin))
self.display.appendShape(launchCaption)
maxWidth = launchCaption.rect().width()
textHeight = launchCaption.rect().height()
extra = (3 * verticalMargin - textHeight) / 4
path = QtGui.QPainterPath()
path.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
backgroundColor = QtGui.QColor("#a63e39")
highlightedColor = QtGui.QColor("#f95e56")
background = PanelShape(
path, QtGui.QBrush(backgroundColor),
QtGui.QBrush(highlightedColor), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(launchCaption.position()),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["fade minimum"] = 120
background.metadata["launch"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(launchCaption.target()))
if self.currentExample in self.runningExamples:
background.metadata["highlight"] = True
background.metadata["highlight scale"] = 0.99
background.animate()
background.metadata["fade"] = -135
self.slideshowTimer.stop()
self.display.insertShape(0, background)
rightMargin = background.rect().left()
if self.examples[self.currentExample]['document path']:
documentCaption = TitleShape(
self.tr("Show Documentation"), self.font(),
QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.0, 0.0),
QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
if rightMargin == 0.0:
documentCaption.setPosition(
QtCore.QPointF(
0.9 * self.width() - documentCaption.rect().width(),
self.height()))
else:
documentCaption.setPosition(
QtCore.QPointF(
leftMargin / 2 + rightMargin / 2 -
documentCaption.rect().width() / 2, self.height()))
documentCaption.setTarget(
QtCore.QPointF(documentCaption.position().x(),
self.height() - 5.2 * verticalMargin))
self.display.appendShape(documentCaption)
maxWidth = documentCaption.rect().width()
textHeight = documentCaption.rect().height()
extra = (3 * verticalMargin - textHeight) / 4
path = QtGui.QPainterPath()
path.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
background = PanelShape(
path, QtGui.QBrush(QtGui.QColor("#9c9cff")),
QtGui.QBrush(QtGui.QColor("#cfcfff")),
QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(documentCaption.position()),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["fade minimum"] = 120
background.metadata["documentation"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(documentCaption.target()))
self.display.insertShape(0, background)
self.addVersionAndCopyright(
QtCore.QRectF(2 * horizontalMargin,
self.height() - verticalMargin - footerTextHeight,
self.width() - 4 * horizontalMargin,
footerTextHeight))
class Launcher(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.categories = {}
self.runningProcesses = {}
self.examples = {}
self.runningExamples = []
self.titleFont = QtGui.QFont(self.font())
self.titleFont.setWeight(QtGui.QFont.Bold)
self.fontRatio = 0.8
self.documentFont = self.font()
self.inFullScreenResize = False
self.currentCategory = "[starting]"
self.qtLogo = QtGui.QImage()
self.rbLogo = QtGui.QImage()
self.currentExample = ""
self.assistantProcess = QtCore.QProcess()
parentPageAction1 = QtGui.QAction(self.tr("Show Parent Page"), self)
parentPageAction2 = QtGui.QAction(self.tr("Show Parent Page"), self)
parentPageAction3 = QtGui.QAction(self.tr("Show Parent Page"), self)
parentPageAction1.setShortcut(QtGui.QKeySequence(self.tr("Escape")))
parentPageAction2.setShortcut(QtGui.QKeySequence(self.tr("Backspace")))
parentPageAction3.setShortcut(QtGui.QKeySequence(self.tr("Alt+Left")))
fullScreenAction = QtGui.QAction(self.tr("Toggle &Full Screen"), self)
fullScreenAction.setShortcut(QtGui.QKeySequence(self.tr("Ctrl+F")))
exitAction = QtGui.QAction(self.tr("E&xit"), self)
exitAction.setShortcut(QtGui.QKeySequence(self.tr("Ctrl+Q")))
self.connect(parentPageAction1, QtCore.SIGNAL("triggered()"), self,
QtCore.SIGNAL("showPage()"))
self.connect(parentPageAction2, QtCore.SIGNAL("triggered()"), self,
QtCore.SIGNAL("showPage()"))
self.connect(parentPageAction3, QtCore.SIGNAL("triggered()"), self,
QtCore.SIGNAL("showPage()"))
self.connect(fullScreenAction, QtCore.SIGNAL("triggered()"),
self.toggleFullScreen)
self.connect(exitAction, QtCore.SIGNAL("triggered()"), self.close)
self.display = DisplayWidget()
self.addAction(parentPageAction1)
self.addAction(parentPageAction2)
self.addAction(parentPageAction3)
self.addAction(fullScreenAction)
self.addAction(exitAction)
self.slideshowTimer = QtCore.QTimer(self)
self.slideshowTimer.setInterval(5000)
self.resizeTimer = QtCore.QTimer(self)
self.resizeTimer.setSingleShot(True)
self.connect(self.resizeTimer, QtCore.SIGNAL("timeout()"),
self.redisplayWindow)
self.connect(self.display, QtCore.SIGNAL("actionRequested"),
self.executeAction)
self.connect(self.display, QtCore.SIGNAL("categoryRequested"),
self.showExamples)
self.connect(self.display, QtCore.SIGNAL("documentationRequested"),
self.showExampleDocumentation)
self.connect(self.display, QtCore.SIGNAL("exampleRequested"),
self.showExampleSummary)
self.connect(self.display, QtCore.SIGNAL("launchRequested"),
self.launchExample)
self.connect(self, QtCore.SIGNAL("showPage()"), self.showParentPage,
QtCore.Qt.QueuedConnection)
self.connect(self, QtCore.SIGNAL("windowResized()"),
self.redisplayWindow, QtCore.Qt.QueuedConnection)
self.setCentralWidget(self.display)
self.setMaximumSize(
QtGui.QApplication.desktop().screenGeometry().size())
self.setWindowTitle(self.tr("PyQt Examples and Demos"))
self.setWindowIcon(QtGui.QIcon(QtGui.QPixmap(":/images/qt4-logo.png")))
def initHelpEngine(self):
self.helpRootUrl = QtCore.QString(
"qthelp://com.trolltech.qt.%d%d%d/qdoc/" %
(QtCore.QT_VERSION >> 16, ((QtCore.QT_VERSION >> 8) & 0xff),
(QtCore.QT_VERSION & 0xff)))
# Store help collection file in cache dir of assistant.
cacheDir = QtGui.QDesktopServices.storageLocation(
QtGui.QDesktopServices.DataLocation) + "/Trolltech/Assistant"
helpDataFile = "qtdemo_%s.qhc" % QtCore.QT_VERSION_STR
dir = QtCore.QDir()
if not dir.exists(cacheDir):
dir.mkpath(cacheDir)
# Create the help engine (and a new helpDataFile if it does not exist).
self.helpEngine = QtHelp.QHelpEngineCore(cacheDir + helpDataFile)
self.helpEngine.setupData()
qtDocRoot = QtCore.QLibraryInfo.location(
QtCore.QLibraryInfo.DocumentationPath) + "/qch"
qtDocRoot = QtCore.QDir(qtDocRoot).absolutePath()
qchFiles = ["/qt.qch", "/designer.qch", "/linguist.qch"]
oldDir = self.helpEngine.customValue("docDir",
QtCore.QVariant(
QtCore.QString())).toString()
if oldDir != qtDocRoot:
for qchFile in qchFiles:
self.helpEngine.unregisterDocumentation(
QtHelp.QHelpEngineCore.namespaceName(qtDocRoot + qchFile))
# If the data that the engine will work on is not yet registered, do it
# now.
for qchFile in qchFiles:
self.helpEngine.registerDocumentation(qtDocRoot + qchFile)
self.helpEngine.setCustomValue("docDir", QtCore.QVariant(qtDocRoot))
def setup(self):
self.initHelpEngine()
self.documentationDir = QtCore.QDir(
QtCore.QLibraryInfo.location(
QtCore.QLibraryInfo.DocumentationPath))
self.imagesDir = QtCore.QDir(self.documentationDir)
if self.documentationDir.cd("html") and self.documentationDir.cd(
"images"):
self.imagesDir.setPath(self.documentationDir.path())
self.documentationDir.cdUp()
else:
QtGui.QMessageBox.warning(
self, self.tr("No Documentation Found"),
self.tr("I could not find the Qt documentation."))
self.maximumLabels = 0
self.demosDir = QtCore.QDir("./../../demos")
demoCategories = self.readInfo(":/demos.xml", self.demosDir)
self.examplesDir = QtCore.QDir("./../../")
exampleCategories = self.readInfo(":/examples.xml", self.examplesDir)
if demoCategories + exampleCategories <= 0:
QtGui.QMessageBox.warning(self, self.tr("No Examples or Demos found"),
self.tr("I could not find any PyQt examples or demos.\n"\
"Please ensure that PyQt is installed correctly."),
QtGui.QMessageBox.Cancel, QtGui.QMessageBox.NoButton)
return False
self.maximumLabels = max(demoCategories + exampleCategories,
self.maximumLabels)
for category in self.categories:
self.maximumLabels = max(
len(self.categories[category]['examples']) + 1,
self.maximumLabels)
mainDescription = self.categories['[main]']['description']
if len(mainDescription) > 0:
mainDescription += self.tr("\n")
self.categories['[main]']['description'] = mainDescription + self.tr(
"<p>Press <b>Escape</b>, <b>Backspace</b>, or <b>%1</b> to "
"return to a previous menu.</p>"
"<p>Press <b>%2</b> to switch between normal and full screen "
"modes.</p>"
"<p>Use <b>%3</b> to exit the launcher.</p>") \
.arg(QtCore.QString(QtGui.QKeySequence(self.tr("Alt+Left")))) \
.arg(QtCore.QString(QtGui.QKeySequence(self.tr("Ctrl+F")))) \
.arg(QtCore.QString(QtGui.QKeySequence(self.tr("Ctrl+Q"))))
self.emit(QtCore.SIGNAL("showPage()"))
return True
def enableLaunching(self):
process = self.sender()
example = self.runningProcesses[process]
del self.runningProcesses[process]
process.deleteLater()
self.runningExamples.remove(example)
if example == self.currentExample:
for i in range(0, self.display.shapesCount()):
shape = self.display.shape(i)
if shape.metadata.get("launch", "") == example:
shape.metadata["fade"] = 15
self.display.enableUpdates()
self.slideshowTimer.start()
def executeAction(self, action):
if action == "parent":
self.showParentPage()
elif action == "exit":
if len(self.runningExamples) == 0:
self.connect(self.display, QtCore.SIGNAL("displayEmpty()"),
self.close)
self.display.reset()
else:
self.close()
def launchExample(self, uniquename):
if uniquename in self.runningExamples:
return
process = QtCore.QProcess(self)
self.connect(process, QtCore.SIGNAL("finished(int)"),
self.enableLaunching)
self.runningExamples.append(uniquename)
self.runningProcesses[process] = uniquename
if self.examples[uniquename]['changedirectory'] == 'true':
process.setWorkingDirectory(
self.examples[uniquename]['absolute path'])
process.start(sys.executable, [self.examples[uniquename]['path']])
if process.state() == QtCore.QProcess.Starting:
self.slideshowTimer.stop()
def showCategories(self):
self.newPage()
self.fadeShapes()
self.currentCategory = ""
self.currentExample = ""
# Sort the category names excluding any "Qt" prefix.
def csort(c1, c2):
if c1.startsWith("Qt "):
c1 = c1[3:]
if c2.startsWith("Qt "):
c2 = c2[3:]
return cmp(c1, c2)
categories = [c for c in self.categories.keys() if c != "[main]"]
categories.sort(csort)
horizontalMargin = 0.025 * self.width()
verticalMargin = 0.025 * self.height()
title = TitleShape(
self.tr("PyQt Examples and Demos"), self.titleFont,
QtGui.QPen(QtGui.QColor("#a6ce39")), QtCore.QPointF(),
QtCore.QSizeF(0.5 * self.width(), 4 * verticalMargin))
title.setPosition(
QtCore.QPointF(self.width() / 2 - title.rect().width() / 2,
-title.rect().height()))
title.setTarget(QtCore.QPointF(title.position().x(), verticalMargin))
self.display.appendShape(title)
topMargin = 6 * verticalMargin
bottomMargin = self.height() - 3.2 * verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
space / self.maximumLabels)
textHeight = self.fontRatio * step
startPosition = QtCore.QPointF(0.0, topMargin)
maxSize = QtCore.QSizeF(10.8 * horizontalMargin, textHeight)
maxWidth = 0.0
newShapes = []
for category in categories:
caption = TitleShape(category, self.font(), QtGui.QPen(),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
caption.setPosition(
QtCore.QPointF(-caption.rect().width(),
caption.position().y()))
caption.setTarget(
QtCore.QPointF(2 * horizontalMargin,
caption.position().y()))
newShapes.append(caption)
startPosition += QtCore.QPointF(0.0, step)
maxWidth = max(maxWidth, caption.rect().width())
exitButton = TitleShape(self.tr("Exit"), self.font(),
QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
exitButton.setTarget(
QtCore.QPointF(2 * horizontalMargin,
exitButton.position().y()))
newShapes.append(exitButton)
startPosition = QtCore.QPointF(self.width(), topMargin)
extra = (step - textHeight) / 4
backgroundPath = QtGui.QPainterPath()
backgroundPath.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
for category in categories:
background = PanelShape(
backgroundPath,
QtGui.QBrush(self.categories[category]['color']),
QtGui.QBrush(QtGui.QColor("#e0e0ff")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["category"] = category
background.setInteractive(True)
background.setTarget(
QtCore.QPointF(2 * horizontalMargin,
background.position().y()))
self.display.insertShape(0, background)
startPosition += QtCore.QPointF(0.0, step)
exitPath = QtGui.QPainterPath()
exitPath.moveTo(-2 * extra, -extra)
exitPath.lineTo(-8 * extra, textHeight / 2)
exitPath.lineTo(-extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2 * extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2 * extra, -extra)
exitPath.closeSubpath()
exitBackground = PanelShape(
exitPath, QtGui.QBrush(QtGui.QColor("#a6ce39")),
QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 10 * extra, textHeight + 2 * extra))
exitBackground.metadata["action"] = "exit"
exitBackground.setInteractive(True)
exitBackground.setTarget(
QtCore.QPointF(2 * horizontalMargin,
exitBackground.position().y()))
self.display.insertShape(0, exitBackground)
for caption in newShapes:
position = caption.target()
size = caption.rect().size()
caption.setPosition(QtCore.QPointF(-maxWidth, position.y()))
self.display.appendShape(caption)
leftMargin = 3 * horizontalMargin + maxWidth
rightMargin = self.width() - 3 * horizontalMargin
description = DocumentShape(
self.categories['[main]']['description'], self.documentFont,
QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space))
description.metadata["fade"] = 10
self.display.appendShape(description)
imageHeight = title.rect().height() + verticalMargin
qtLength = min(imageHeight, title.rect().left() - 3 * horizontalMargin)
qtMaxSize = QtCore.QSizeF(qtLength, qtLength)
qtShape = ImageShape(
self.qtLogo,
QtCore.QPointF(2 * horizontalMargin - extra, -imageHeight),
qtMaxSize, 0, QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
qtShape.metadata["fade"] = 15
qtShape.setTarget(QtCore.QPointF(qtShape.rect().x(), verticalMargin))
self.display.insertShape(0, qtShape)
trolltechMaxSize = QtCore.QSizeF(
self.width() - 3 * horizontalMargin - title.rect().right(),
imageHeight)
trolltechShape = ImageShape(
self.rbLogo,
QtCore.QPointF(
self.width() - 2 * horizontalMargin -
trolltechMaxSize.width() + extra, -imageHeight),
trolltechMaxSize, 0, QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
trolltechShape.metadata["fade"] = 15
trolltechShape.setTarget(
QtCore.QPointF(trolltechShape.rect().x(), verticalMargin))
self.display.insertShape(0, trolltechShape)
self.addVersionAndCopyright(
QtCore.QRectF(2 * horizontalMargin,
self.height() - verticalMargin - textHeight,
self.width() - 4 * horizontalMargin, textHeight))
def showExampleDocumentation(self, uniqueName):
self.disconnect(self.display, QtCore.SIGNAL("displayEmpty()"),
self.resizeWindow)
self.disconnect(self.display, QtCore.SIGNAL("displayEmpty()"),
self.close)
self.currentExample = uniqueName
url = self.helpRootUrl + self.examples[uniqueName]["document path"]
# Start assistant if it isn't already running.
if self.assistantProcess.state() != QtCore.QProcess.Running:
app = QtCore.QLibraryInfo.location(
QtCore.QLibraryInfo.BinariesPath) + QtCore.QDir.separator()
if sys.platform == 'darwin':
app += "Assistant.app/Contents/MacOS/Assistant"
else:
app += "assistant"
self.assistantProcess.start(app, ["-enableRemoteControl"])
if not self.assistantProcess.waitForStarted():
QtGui.QMessageBox.critical(None, "Qt Demo",
"Could not start Qt Assistant.")
return
# Send command through remote control even if the process was started
# to activate assistant and bring it to front.
str = QtCore.QTextStream(self.assistantProcess)
str << "SetSource " << url << '\n'
def showExamples(self, category):
self.newPage()
self.fadeShapes()
self.currentCategory = category
self.currentExample = ""
horizontalMargin = 0.025 * self.width()
verticalMargin = 0.025 * self.height()
title = self.addTitle(category, verticalMargin)
self.addTitleBackground(title)
topMargin = 6 * verticalMargin
bottomMargin = self.height() - 3.2 * verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
space / self.maximumLabels)
textHeight = self.fontRatio * step
startPosition = QtCore.QPointF(2 * horizontalMargin,
self.height() + topMargin)
finishPosition = QtCore.QPointF(2 * horizontalMargin, topMargin)
maxSize = QtCore.QSizeF(32 * horizontalMargin, textHeight)
maxWidth = 0.0
for example in self.categories[self.currentCategory]['examples']:
caption = TitleShape(example, self.font(), QtGui.QPen(),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
caption.setTarget(QtCore.QPointF(finishPosition))
self.display.appendShape(caption)
startPosition += QtCore.QPointF(0.0, step)
finishPosition += QtCore.QPointF(0.0, step)
maxWidth = max(maxWidth, caption.rect().width())
menuButton = TitleShape(self.tr("Main Menu"), self.font(),
QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
menuButton.setTarget(QtCore.QPointF(finishPosition))
self.display.appendShape(menuButton)
startPosition = QtCore.QPointF(self.width(), topMargin)
extra = (step - textHeight) / 4
for example in self.categories[self.currentCategory]['examples']:
uniquename = self.currentCategory + "-" + example
path = QtGui.QPainterPath()
path.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
background = PanelShape(
path, QtGui.QBrush(self.examples[uniquename]['color']),
QtGui.QBrush(QtGui.QColor("#e0e0ff")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["example"] = uniquename
background.setInteractive(True)
background.setTarget(
QtCore.QPointF(2 * horizontalMargin,
background.position().y()))
self.display.insertShape(0, background)
startPosition += QtCore.QPointF(0.0, step)
backPath = QtGui.QPainterPath()
backPath.moveTo(-2 * extra, -extra)
backPath.lineTo(-8 * extra, textHeight / 2)
backPath.lineTo(-extra, textHeight + extra)
backPath.lineTo(maxWidth + 2 * extra, textHeight + extra)
backPath.lineTo(maxWidth + 2 * extra, -extra)
backPath.closeSubpath()
buttonBackground = PanelShape(
backPath, QtGui.QBrush(QtGui.QColor("#a6ce39")),
QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 10 * extra, textHeight + 2 * extra))
buttonBackground.metadata["action"] = "parent"
buttonBackground.setInteractive(True)
buttonBackground.setTarget(
QtCore.QPointF(2 * horizontalMargin,
buttonBackground.position().y()))
self.display.insertShape(0, buttonBackground)
leftMargin = 3 * horizontalMargin + maxWidth
rightMargin = self.width() - 3 * horizontalMargin
description = DocumentShape(
self.categories[self.currentCategory]['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space), 0)
description.metadata["fade"] = 10
self.display.appendShape(description)
self.addVersionAndCopyright(
QtCore.QRectF(2 * horizontalMargin,
self.height() - verticalMargin - textHeight,
self.width() - 4 * horizontalMargin, textHeight))
def showExampleSummary(self, uniquename):
self.newPage()
self.fadeShapes()
self.currentExample = uniquename
horizontalMargin = 0.025 * self.width()
verticalMargin = 0.025 * self.height()
title = self.addTitle(self.examples[uniquename]['name'],
verticalMargin)
titleBackground = self.addTitleBackground(title)
topMargin = 2 * verticalMargin + titleBackground.rect().bottom()
bottomMargin = self.height() - 8 * verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
(bottomMargin + 4.8 * verticalMargin - topMargin) /
self.maximumLabels)
footerTextHeight = self.fontRatio * step
leftMargin = 3 * horizontalMargin
rightMargin = self.width() - 3 * horizontalMargin
if self.examples[self.currentExample].has_key('description'):
description = DocumentShape(
self.examples[self.currentExample]['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space), 0)
description.metadata["fade"] = 10
description.setPosition(
QtCore.QPointF(
description.position().x(),
0.8 * self.height() - description.rect().height()))
self.display.appendShape(description)
space = description.position().y() - topMargin - 2 * verticalMargin
if self.examples[self.currentExample].has_key('image files'):
image = QtGui.QImage(
self.examples[self.currentExample]['image files'][0])
imageMaxSize = QtCore.QSizeF(self.width() - 8 * horizontalMargin,
space)
self.currentFrame = ImageShape(
image,
QtCore.QPointF(self.width() - imageMaxSize.width() / 2,
topMargin), QtCore.QSizeF(imageMaxSize))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(
QtCore.QPointF(self.width() / 2 - imageMaxSize.width() / 2,
topMargin))
self.display.appendShape(self.currentFrame)
if len(self.examples[self.currentExample]['image files']) > 1:
self.connect(self.slideshowTimer, QtCore.SIGNAL("timeout()"),
self.updateExampleSummary)
self.slideshowFrame = 0
self.slideshowTimer.start()
maxSize = QtCore.QSizeF(0.3 * self.width(), 2 * verticalMargin)
leftMargin = 0.0
rightMargin = 0.0
backButton = TitleShape(
self.currentCategory, self.font(), QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(0.1 * self.width(), self.height()),
QtCore.QSizeF(maxSize), QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
backButton.setTarget(
QtCore.QPointF(backButton.position().x(),
self.height() - 5.2 * verticalMargin))
self.display.appendShape(backButton)
maxWidth = backButton.rect().width()
textHeight = backButton.rect().height()
extra = (3 * verticalMargin - textHeight) / 4
path = QtGui.QPainterPath()
path.moveTo(-extra, -extra)
path.lineTo(-4 * extra, textHeight / 2)
path.lineTo(-extra, textHeight + extra)
path.lineTo(maxWidth + 2 * extra, textHeight + extra)
path.lineTo(maxWidth + 2 * extra, -extra)
path.closeSubpath()
buttonBackground = PanelShape(
path, QtGui.QBrush(QtGui.QColor("#a6ce39")),
QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(backButton.position()),
QtCore.QSizeF(maxWidth + 6 * extra, textHeight + 2 * extra))
buttonBackground.metadata["category"] = self.currentCategory
buttonBackground.setInteractive(True)
buttonBackground.setTarget(QtCore.QPointF(backButton.target()))
self.display.insertShape(0, buttonBackground)
leftMargin = buttonBackground.rect().right()
if self.examples[self.currentExample].has_key('absolute path'):
launchCaption = TitleShape(
self.tr("Launch"), self.font(), QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(0.0, 0.0), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
launchCaption.setPosition(
QtCore.QPointF(
0.9 * self.width() - launchCaption.rect().width(),
self.height()))
launchCaption.setTarget(
QtCore.QPointF(launchCaption.position().x(),
self.height() - 5.2 * verticalMargin))
self.display.appendShape(launchCaption)
maxWidth = launchCaption.rect().width()
textHeight = launchCaption.rect().height()
extra = (3 * verticalMargin - textHeight) / 4
path = QtGui.QPainterPath()
path.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
backgroundColor = QtGui.QColor("#a63e39")
highlightedColor = QtGui.QColor("#f95e56")
background = PanelShape(
path, QtGui.QBrush(backgroundColor),
QtGui.QBrush(highlightedColor), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(launchCaption.position()),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["fade minimum"] = 120
background.metadata["launch"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(launchCaption.target()))
if self.currentExample in self.runningExamples:
background.metadata["highlight"] = True
background.metadata["highlight scale"] = 0.99
background.animate()
background.metadata["fade"] = -135
self.slideshowTimer.stop()
self.display.insertShape(0, background)
rightMargin = background.rect().left()
if self.examples[self.currentExample]['document path']:
documentCaption = TitleShape(
self.tr("Show Documentation"), self.font(),
QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.0, 0.0),
QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
if rightMargin == 0.0:
documentCaption.setPosition(
QtCore.QPointF(
0.9 * self.width() - documentCaption.rect().width(),
self.height()))
else:
documentCaption.setPosition(
QtCore.QPointF(
leftMargin / 2 + rightMargin / 2 -
documentCaption.rect().width() / 2, self.height()))
documentCaption.setTarget(
QtCore.QPointF(documentCaption.position().x(),
self.height() - 5.2 * verticalMargin))
self.display.appendShape(documentCaption)
maxWidth = documentCaption.rect().width()
textHeight = documentCaption.rect().height()
extra = (3 * verticalMargin - textHeight) / 4
path = QtGui.QPainterPath()
path.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
background = PanelShape(
path, QtGui.QBrush(QtGui.QColor("#9c9cff")),
QtGui.QBrush(QtGui.QColor("#cfcfff")),
QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(documentCaption.position()),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["fade minimum"] = 120
background.metadata["documentation"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(documentCaption.target()))
self.display.insertShape(0, background)
self.addVersionAndCopyright(
QtCore.QRectF(2 * horizontalMargin,
self.height() - verticalMargin - footerTextHeight,
self.width() - 4 * horizontalMargin,
footerTextHeight))
def showParentPage(self):
self.slideshowTimer.stop()
self.disconnect(self.slideshowTimer, QtCore.SIGNAL("timeout()"),
self.updateExampleSummary)
if len(self.currentExample) > 0:
self.currentExample = ""
self.redisplayWindow()
elif len(self.currentCategory) > 0:
self.currentCategory = ""
self.redisplayWindow()
def updateExampleSummary(self):
if self.examples[self.currentExample].has_key('image files'):
self.currentFrame.metadata["fade"] = -15
self.currentFrame.setTarget(
QtCore.QPointF((self.currentFrame.position() -
QtCore.QPointF(0.5 * self.width(), 0))))
self.slideshowFrame = (self.slideshowFrame + 1) % len(
self.examples[self.currentExample]['image files'])
image = QtGui.QImage(self.examples[self.currentExample]
['image files'][self.slideshowFrame])
imageSize = self.currentFrame.maxSize
imagePosition = QtCore.QPointF(
self.width() - imageSize.width() / 2,
self.currentFrame.position().y())
self.currentFrame = ImageShape(image,
QtCore.QPointF(imagePosition),
QtCore.QSizeF(imageSize))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(
QtCore.QPointF(self.width() / 2 - imageSize.width() / 2,
imagePosition.y()))
self.display.appendShape(self.currentFrame)
def closeEvent(self, event):
if len(self.runningExamples) > 0:
if QtGui.QMessageBox.warning(
self, self.tr("Examples Running"),
self.
tr("There are examples running. Do you really want to exit?"
), QtGui.QMessageBox.Yes,
QtGui.QMessageBox.No) == QtGui.QMessageBox.No:
event.ignore()
return
for example in self.runningProcesses.keys():
example.terminate()
example.waitForFinished(1000)
self.runningProcesses.clear()
self.resizeTimer.stop()
self.slideshowTimer.stop()
def resizeEvent(self, event):
self.documentFont = QtGui.QFont(self.font())
self.documentFont.setPointSizeF(
min(self.documentFont.pointSizeF() * self.width() / 640.0,
self.documentFont.pointSizeF() * self.height() / 480.0))
if self.inFullScreenResize:
self.emit(QtCore.SIGNAL("windowResized()"))
self.inFullScreenResize = False
elif self.currentCategory != "[starting]":
self.resizeTimer.start(500)
def toggleFullScreen(self):
if self.inFullScreenResize:
return
self.inFullScreenResize = True
self.connect(self.display, QtCore.SIGNAL("displayEmpty()"),
self.resizeWindow, QtCore.Qt.QueuedConnection)
self.display.reset()
def redisplayWindow(self):
if len(self.currentExample) > 0:
self.showExampleSummary(self.currentExample)
elif len(self.currentCategory) > 0:
self.showExamples(self.currentCategory)
else:
self.showCategories()
def resizeWindow(self):
self.disconnect(self.display, QtCore.SIGNAL("displayEmpty()"),
self.resizeWindow)
if self.isFullScreen():
self.showNormal()
else:
self.showFullScreen()
def addTitle(self, title, verticalMargin):
titlePosition = QtCore.QPointF(0.0, 2 * verticalMargin)
newTitle = TitleShape(
title, self.titleFont, QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(titlePosition),
QtCore.QSizeF(0.5 * self.width(), 2 * verticalMargin),
QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop)
newTitle.setPosition(
QtCore.QPointF(-newTitle.rect().width(), titlePosition.y()))
newTitle.setTarget(
QtCore.QPointF(0.25 * self.width(), titlePosition.y()))
newTitle.metadata["fade"] = 15
self.display.appendShape(newTitle)
return newTitle
def addTitleBackground(self, titleShape):
backgroundPath = QtGui.QPainterPath()
backgroundPath.addRect(0, -titleShape.rect().height() * 0.3,
self.width(),
titleShape.rect().height() * 1.6)
titleBackground = PanelShape(
backgroundPath, QtGui.QBrush(QtGui.QColor("#a6ce39")),
QtGui.QBrush(QtGui.QColor("#a6ce39")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(self.width(),
titleShape.position().y()),
QtCore.QSizeF(backgroundPath.boundingRect().size()))
titleBackground.setTarget(
QtCore.QPointF(0.0,
titleShape.position().y()))
self.display.insertShape(0, titleBackground)
return titleBackground
def readExampleDescription(self, parentNode):
node = parentNode.firstChild()
description = ""
while not node.isNull():
if node.isText():
description += node.nodeValue()
elif node.hasChildNodes():
if node.nodeName() == "b":
beginTag = "<b>"
endTag = "</b>"
elif node.nodeName() == "a":
beginTag = "<font color=\"blue\">"
endTag = "</font>"
elif node.nodeName() == "i":
beginTag = "<i>"
endTag = "</i>"
elif node.nodeName() == "tt":
beginTag = "<tt>"
endTag = "</tt>"
description += beginTag + self.readExampleDescription(
node) + endTag
node = node.nextSibling()
return description
def readInfo(self, resource, dir_):
categoriesFile = QtCore.QFile(resource)
document = QtXml.QDomDocument()
document.setContent(categoriesFile)
documentElement = document.documentElement()
categoryNodes = documentElement.elementsByTagName("category")
self.categories['[main]'] = {}
self.categories['[main]']['examples'] = []
self.categories['[main]']['color'] = QtGui.QColor("#f0f0f0")
self.readCategoryDescription(dir_, '[main]')
self.qtLogo.load(
self.imagesDir.absoluteFilePath(":/images/qt4-logo.png"))
self.rbLogo.load(
self.imagesDir.absoluteFilePath(":/images/rb-logo.png"))
for i in range(categoryNodes.length()):
elem = categoryNodes.item(i).toElement()
categoryName = QtCore.QString(elem.attribute("name"))
categoryDirName = QtCore.QString(elem.attribute("dirname"))
categoryDocName = QtCore.QString(elem.attribute("docname"))
categoryColor = QtGui.QColor(elem.attribute("color", "#f0f0f0"))
categoryDir = QtCore.QDir(dir_)
if categoryDir.cd(categoryDirName):
self.categories[categoryName] = {}
self.readCategoryDescription(categoryDir, categoryName)
self.categories[categoryName]['examples'] = []
exampleNodes = elem.elementsByTagName("example")
self.maximumLabels = max(self.maximumLabels,
exampleNodes.length())
# Only add those examples we can find.
for j in range(exampleNodes.length()):
exampleDir = QtCore.QDir(categoryDir)
exampleNode = exampleNodes.item(j)
element = exampleNode.toElement()
exampleName = element.attribute("name")
exampleFileName = element.attribute("filename")
uniqueName = categoryName + "-" + exampleName
self.examples[uniqueName] = {}
if not categoryDocName.isEmpty():
docName = categoryDocName + "-" + exampleFileName + ".html"
else:
docName = categoryDirName + "-" + exampleFileName + ".html"
self.examples[uniqueName]['name'] = exampleName
self.examples[uniqueName]['document path'] = ""
self.findDescriptionAndImages(uniqueName, docName)
self.examples[uniqueName][
'changedirectory'] = element.attribute(
"changedirectory", "true")
self.examples[uniqueName]['color'] = QtGui.QColor(
element.attribute("color", "#f0f0f0"))
if element.attribute("executable", "true") != "true":
del self.examples[uniqueName]
continue
examplePath = None
if sys.platform == "win32":
examplePyName = exampleFileName + ".pyw"
else:
examplePyName = exampleFileName + ".py"
if exampleDir.exists(examplePyName):
examplePath = exampleDir.absoluteFilePath(
examplePyName)
elif exampleDir.cd(exampleFileName):
if exampleDir.exists(examplePyName):
examplePath = exampleDir.absoluteFilePath(
examplePyName)
if examplePath and not examplePath.isNull():
self.examples[uniqueName][
'absolute path'] = exampleDir.absolutePath()
self.examples[uniqueName]['path'] = examplePath
self.categories[categoryName]['examples'].append(
exampleName)
else:
del self.examples[uniqueName]
self.categories[categoryName]['color'] = categoryColor
return len(self.categories)
def addVersionAndCopyright(self, rect):
versionCaption = TitleShape(
QtCore.QString("Qt %1").arg(QtCore.QT_VERSION_STR), self.font(),
QtGui.QPen(QtGui.QColor(0, 0, 0, 0)),
QtCore.QPointF(rect.center().x(), rect.top()),
QtCore.QSizeF(0.5 * rect.width(), rect.height()),
QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
versionCaption.metadata["fade"] = 15
self.display.appendShape(versionCaption)
copyrightCaption = TitleShape(
QtCore.QString("Copyright \xa9 2005-2006 Trolltech AS"),
self.font(), QtGui.QPen(QtGui.QColor(0, 0, 0, 0)),
QtCore.QPointF(rect.topLeft()),
QtCore.QSizeF(0.5 * rect.width(), rect.height()),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
copyrightCaption.metadata["fade"] = 15
self.display.appendShape(copyrightCaption)
def fadeShapes(self):
for i in range(0, self.display.shapesCount()):
shape = self.display.shape(i)
shape.metadata["fade"] = -15
shape.metadata["fade minimum"] = 0
def findDescriptionAndImages(self, uniqueName, docName):
if self.documentationDir.exists(docName):
self.examples[uniqueName]['document path'] = docName
exampleDoc = QtXml.QDomDocument()
exampleFile = QtCore.QFile(
self.documentationDir.absoluteFilePath(docName))
exampleDoc.setContent(exampleFile)
paragraphs = exampleDoc.elementsByTagName("p")
for p in range(paragraphs.length()):
descriptionNode = paragraphs.item(p)
description = self.readExampleDescription(descriptionNode)
if QtCore.QString(description).indexOf(
QtCore.QRegExp(
QtCore.QString(
"((The|This) )?(%1 )?.*(example|demo)").arg(
self.examples[uniqueName]['name']),
QtCore.Qt.CaseInsensitive)) != -1:
self.examples[uniqueName]['description'] = description
break
images = exampleDoc.elementsByTagName("img")
imageFiles = []
for i in range(images.length()):
imageElement = images.item(i).toElement()
source = QtCore.QString(imageElement.attribute("src"))
if "-logo" not in source:
imageFiles.append(
self.documentationDir.absoluteFilePath(source))
if len(imageFiles) > 0:
self.examples[uniqueName]['image files'] = imageFiles
def newPage(self):
self.slideshowTimer.stop()
self.disconnect(self.slideshowTimer, QtCore.SIGNAL("timeout()"),
self.updateExampleSummary)
self.disconnect(self.display, QtCore.SIGNAL("displayEmpty()"),
self.resizeWindow)
def readCategoryDescription(self, categoryDir, categoryName):
## categoryDirName = categoryDir.absolutePath()
## if categoryDirName.find("examples") != -1:
## categoryDirName = re.sub(".*/examples(.*)", r"%s\1" % QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.ExamplesPath), categoryDirName)
## else:
## categoryDirName = re.sub(".*/demos(.*)", r"%s\1" % QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.DemosPath), categoryDirName)
## categoryDir = QtCore.QDir(categoryDirName)
if categoryDir.exists("README"):
file = QtCore.QFile(categoryDir.absoluteFilePath("README"))
if not file.open(QtCore.QFile.ReadOnly):
return
inputStream = QtCore.QTextStream(file)
paragraphs = []
currentPara = []
openQuote = True
while not inputStream.atEnd():
line = inputStream.readLine()
at = line.indexOf("\"", 0)
while at != -1:
if openQuote:
line.replace(
at, 1,
QtCore.QChar(
QtCore.QChar.Punctuation_InitialQuote))
else:
line.replace(
at, 1,
QtCore.QChar(QtCore.QChar.Punctuation_FinalQuote))
openQuote = not openQuote
at = line.indexOf("\"", at)
if not line.trimmed().isEmpty():
currentPara.append(str(line.trimmed()))
elif len(currentPara) > 0:
paragraphs.append(" ".join(currentPara))
currentPara = []
else:
break
if len(currentPara) > 0:
paragraphs.append(" ".join(currentPara))
self.categories[categoryName][
'description'] = "<p>" + "\n</p><p>".join(paragraphs) + "</p>"
def slotShowPage(self):
self.emit(QtCore.SIGNAL("showPage()"))
def showCategories(self):
self.newPage()
self.fadeShapes()
self.currentCategory = ""
self.currentExample = ""
# Sort the category names excluding any "Qt" prefix.
def csort(c1, c2):
if c1.startsWith("Qt "):
c1 = c1[3:]
if c2.startsWith("Qt "):
c2 = c2[3:]
return cmp(c1, c2)
categories = [c for c in self.categories.keys() if c != "[main]"]
categories.sort(csort)
horizontalMargin = 0.025 * self.width()
verticalMargin = 0.025 * self.height()
title = TitleShape(
self.tr("PyQt Examples and Demos"), self.titleFont,
QtGui.QPen(QtGui.QColor("#a6ce39")), QtCore.QPointF(),
QtCore.QSizeF(0.5 * self.width(), 4 * verticalMargin))
title.setPosition(
QtCore.QPointF(self.width() / 2 - title.rect().width() / 2,
-title.rect().height()))
title.setTarget(QtCore.QPointF(title.position().x(), verticalMargin))
self.display.appendShape(title)
topMargin = 6 * verticalMargin
bottomMargin = self.height() - 3.2 * verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
space / self.maximumLabels)
textHeight = self.fontRatio * step
startPosition = QtCore.QPointF(0.0, topMargin)
maxSize = QtCore.QSizeF(10.8 * horizontalMargin, textHeight)
maxWidth = 0.0
newShapes = []
for category in categories:
caption = TitleShape(category, self.font(), QtGui.QPen(),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
caption.setPosition(
QtCore.QPointF(-caption.rect().width(),
caption.position().y()))
caption.setTarget(
QtCore.QPointF(2 * horizontalMargin,
caption.position().y()))
newShapes.append(caption)
startPosition += QtCore.QPointF(0.0, step)
maxWidth = max(maxWidth, caption.rect().width())
exitButton = TitleShape(self.tr("Exit"), self.font(),
QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
exitButton.setTarget(
QtCore.QPointF(2 * horizontalMargin,
exitButton.position().y()))
newShapes.append(exitButton)
startPosition = QtCore.QPointF(self.width(), topMargin)
extra = (step - textHeight) / 4
backgroundPath = QtGui.QPainterPath()
backgroundPath.addRect(-2 * extra, -extra, maxWidth + 4 * extra,
textHeight + 2 * extra)
for category in categories:
background = PanelShape(
backgroundPath,
QtGui.QBrush(self.categories[category]['color']),
QtGui.QBrush(QtGui.QColor("#e0e0ff")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 4 * extra, textHeight + 2 * extra))
background.metadata["category"] = category
background.setInteractive(True)
background.setTarget(
QtCore.QPointF(2 * horizontalMargin,
background.position().y()))
self.display.insertShape(0, background)
startPosition += QtCore.QPointF(0.0, step)
exitPath = QtGui.QPainterPath()
exitPath.moveTo(-2 * extra, -extra)
exitPath.lineTo(-8 * extra, textHeight / 2)
exitPath.lineTo(-extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2 * extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2 * extra, -extra)
exitPath.closeSubpath()
exitBackground = PanelShape(
exitPath, QtGui.QBrush(QtGui.QColor("#a6ce39")),
QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 10 * extra, textHeight + 2 * extra))
exitBackground.metadata["action"] = "exit"
exitBackground.setInteractive(True)
exitBackground.setTarget(
QtCore.QPointF(2 * horizontalMargin,
exitBackground.position().y()))
self.display.insertShape(0, exitBackground)
for caption in newShapes:
position = caption.target()
size = caption.rect().size()
caption.setPosition(QtCore.QPointF(-maxWidth, position.y()))
self.display.appendShape(caption)
leftMargin = 3 * horizontalMargin + maxWidth
rightMargin = self.width() - 3 * horizontalMargin
description = DocumentShape(
self.categories['[main]']['description'], self.documentFont,
QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space))
description.metadata["fade"] = 10
self.display.appendShape(description)
imageHeight = title.rect().height() + verticalMargin
qtLength = min(imageHeight, title.rect().left() - 3 * horizontalMargin)
qtMaxSize = QtCore.QSizeF(qtLength, qtLength)
qtShape = ImageShape(
self.qtLogo,
QtCore.QPointF(2 * horizontalMargin - extra, -imageHeight),
qtMaxSize, 0, QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
qtShape.metadata["fade"] = 15
qtShape.setTarget(QtCore.QPointF(qtShape.rect().x(), verticalMargin))
self.display.insertShape(0, qtShape)
trolltechMaxSize = QtCore.QSizeF(
self.width() - 3 * horizontalMargin - title.rect().right(),
imageHeight)
trolltechShape = ImageShape(
self.rbLogo,
QtCore.QPointF(
self.width() - 2 * horizontalMargin -
trolltechMaxSize.width() + extra, -imageHeight),
trolltechMaxSize, 0, QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
trolltechShape.metadata["fade"] = 15
trolltechShape.setTarget(
QtCore.QPointF(trolltechShape.rect().x(), verticalMargin))
self.display.insertShape(0, trolltechShape)
self.addVersionAndCopyright(
QtCore.QRectF(2 * horizontalMargin,
self.height() - verticalMargin - textHeight,
self.width() - 4 * horizontalMargin, textHeight))
def showExampleSummary(self, uniquename):
self.newPage()
self.fadeShapes()
self.currentExample = uniquename
horizontalMargin = 0.025*self.width()
verticalMargin = 0.025*self.height()
title = self.addTitle(self.examples[uniquename]['name'], verticalMargin)
titleBackground = self.addTitleBackground(title)
topMargin = 2*verticalMargin + titleBackground.rect().bottom()
bottomMargin = self.height() - 8*verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
( bottomMargin + 4.8*verticalMargin - topMargin )/self.maximumLabels )
footerTextHeight = self.fontRatio * step
leftMargin = 3*horizontalMargin
rightMargin = self.width() - 3*horizontalMargin
if 'description' in self.examples[self.currentExample]:
description = DocumentShape( self.examples[self.currentExample]['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin-leftMargin, space), 0 )
description.metadata["fade"] = 10
description.setPosition(QtCore.QPointF(description.position().x(),
0.8*self.height()-description.rect().height()))
self.display.appendShape(description)
space = description.position().y() - topMargin - 2*verticalMargin
if 'image files' in self.examples[self.currentExample]:
image = QtGui.QImage(self.examples[self.currentExample]['image files'][0])
imageMaxSize = QtCore.QSizeF(self.width() - 8*horizontalMargin, space)
self.currentFrame = ImageShape( image,
QtCore.QPointF(self.width()-imageMaxSize.width()/2, topMargin),
QtCore.QSizeF(imageMaxSize ))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(QtCore.QPointF(self.width()/2-imageMaxSize.width()/2,
topMargin))
self.display.appendShape(self.currentFrame)
if len(self.examples[self.currentExample]['image files']) > 1:
self.slideshowTimer.timeout.connect(self.updateExampleSummary)
self.slideshowFrame = 0
self.slideshowTimer.start()
maxSize = QtCore.QSizeF(0.3*self.width(),2*verticalMargin)
leftMargin = 0.0
rightMargin = 0.0
backButton = TitleShape(self.currentCategory, self.font(),
QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.1*self.width(), self.height()), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
backButton.setTarget(QtCore.QPointF(backButton.position().x(),
self.height() - 5.2*verticalMargin))
self.display.appendShape(backButton)
maxWidth = backButton.rect().width()
textHeight = backButton.rect().height()
extra = (3*verticalMargin - textHeight)/4
path = QtGui.QPainterPath()
path.moveTo(-extra, -extra)
path.lineTo(-4*extra, textHeight/2)
path.lineTo(-extra, textHeight + extra)
path.lineTo(maxWidth + 2*extra, textHeight + extra)
path.lineTo(maxWidth + 2*extra, -extra)
path.closeSubpath()
buttonBackground = PanelShape(path,
QtGui.QBrush(QtGui.QColor("#a6ce39")), QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(backButton.position()),
QtCore.QSizeF(maxWidth + 6*extra, textHeight + 2*extra))
buttonBackground.metadata["category"] = self.currentCategory
buttonBackground.setInteractive(True)
buttonBackground.setTarget(QtCore.QPointF(backButton.target()))
self.display.insertShape(0, buttonBackground)
leftMargin = buttonBackground.rect().right()
if 'absolute path' in self.examples[self.currentExample]:
launchCaption = TitleShape(self.tr("Launch"),
self.font(), QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.0, 0.0), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
launchCaption.setPosition(QtCore.QPointF(
0.9*self.width() - launchCaption.rect().width(), self.height()))
launchCaption.setTarget(QtCore.QPointF(launchCaption.position().x(),
self.height() - 5.2*verticalMargin))
self.display.appendShape(launchCaption)
maxWidth = launchCaption.rect().width()
textHeight = launchCaption.rect().height()
extra = (3*verticalMargin - textHeight)/4
path = QtGui.QPainterPath()
path.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight + 2*extra)
backgroundColor = QtGui.QColor("#a63e39")
highlightedColor = QtGui.QColor("#f95e56")
background = PanelShape(path,
QtGui.QBrush(backgroundColor), QtGui.QBrush(highlightedColor), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(launchCaption.position()),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["fade minimum"] = 120
background.metadata["launch"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(launchCaption.target()))
if self.currentExample in self.runningExamples:
background.metadata["highlight"] = True
background.metadata["highlight scale"] = 0.99
background.animate()
background.metadata["fade"] = -135
self.slideshowTimer.stop()
self.display.insertShape(0, background)
rightMargin = background.rect().left()
if self.examples[self.currentExample]['document path']:
documentCaption = TitleShape(self.tr("Show Documentation"),
self.font(), QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.0, 0.0), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
if rightMargin == 0.0:
documentCaption.setPosition(QtCore.QPointF(
0.9*self.width() - documentCaption.rect().width(), self.height()))
else:
documentCaption.setPosition(QtCore.QPointF(
leftMargin/2 + rightMargin/2 - documentCaption.rect().width()/2,
self.height()))
documentCaption.setTarget(QtCore.QPointF(documentCaption.position().x(),
self.height() - 5.2*verticalMargin))
self.display.appendShape(documentCaption)
maxWidth = documentCaption.rect().width()
textHeight = documentCaption.rect().height()
extra = (3*verticalMargin - textHeight)/4
path = QtGui.QPainterPath()
path.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight + 2*extra)
background = PanelShape(path,
QtGui.QBrush(QtGui.QColor("#9c9cff")), QtGui.QBrush(QtGui.QColor("#cfcfff")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(documentCaption.position()),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["fade minimum"] = 120
background.metadata["documentation"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(documentCaption.target()))
self.display.insertShape(0, background)
self.addVersionAndCopyright(QtCore.QRectF(2*horizontalMargin,
self.height() - verticalMargin - footerTextHeight,
self.width() - 4*horizontalMargin, footerTextHeight))
class Launcher(QtGui.QMainWindow):
showPage = QtCore.pyqtSignal()
windowResized = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(Launcher, self).__init__(parent)
self.categories = {}
self.runningProcesses = {}
self.examples = {}
self.runningExamples = []
self.titleFont = QtGui.QFont(self.font())
self.titleFont.setWeight(QtGui.QFont.Bold)
self.fontRatio = 0.8
self.documentFont = self.font()
self.inFullScreenResize = False
self.currentCategory = "[starting]"
self.qtLogo = QtGui.QImage()
self.rbLogo = QtGui.QImage()
self.currentExample = ""
self.assistantProcess = QtCore.QProcess()
parentPageAction1 = QtGui.QAction(self.tr("Show Parent Page"), self)
parentPageAction2 = QtGui.QAction(self.tr("Show Parent Page"), self)
parentPageAction3 = QtGui.QAction(self.tr("Show Parent Page"), self)
parentPageAction1.setShortcut(QtGui.QKeySequence(self.tr("Escape")))
parentPageAction2.setShortcut(QtGui.QKeySequence(self.tr("Backspace")))
parentPageAction3.setShortcut(QtGui.QKeySequence(self.tr("Alt+Left")))
fullScreenAction = QtGui.QAction(self.tr("Toggle &Full Screen"), self)
fullScreenAction.setShortcut(QtGui.QKeySequence(self.tr("Ctrl+F")))
exitAction = QtGui.QAction(self.tr("E&xit"), self)
exitAction.setShortcut(QtGui.QKeySequence(self.tr("Ctrl+Q")))
parentPageAction1.triggered.connect(self.showPage)
parentPageAction2.triggered.connect(self.showPage)
parentPageAction3.triggered.connect(self.showPage)
fullScreenAction.triggered.connect(self.toggleFullScreen)
exitAction.triggered.connect(self.close)
self.display = DisplayWidget()
self.addAction(parentPageAction1)
self.addAction(parentPageAction2)
self.addAction(parentPageAction3)
self.addAction(fullScreenAction)
self.addAction(exitAction)
self.slideshowTimer = QtCore.QTimer(self)
self.slideshowTimer.setInterval(5000)
self.resizeTimer = QtCore.QTimer(self)
self.resizeTimer.setSingleShot(True)
self.resizeTimer.timeout.connect(self.redisplayWindow)
self.display.actionRequested.connect(self.executeAction)
self.display.categoryRequested.connect(self.showExamples)
self.display.documentationRequested.connect(self.showExampleDocumentation)
self.display.exampleRequested.connect(self.showExampleSummary)
self.display.launchRequested.connect(self.launchExample)
self.showPage.connect(self.showParentPage,
type=QtCore.Qt.QueuedConnection)
self.windowResized.connect(self.redisplayWindow,
type=QtCore.Qt.QueuedConnection)
self.setCentralWidget(self.display)
self.setMaximumSize(QtGui.QApplication.desktop().screenGeometry().size())
self.setWindowTitle(self.tr("PyQt Examples and Demos"))
self.setWindowIcon(QtGui.QIcon(QtGui.QPixmap(":/images/qt4-logo.png")))
def initHelpEngine(self):
self.helpRootUrl = QtCore.QString("qthelp://com.trolltech.qt.%d%d%d/qdoc/" % (QtCore.QT_VERSION >> 16, ((QtCore.QT_VERSION >> 8) & 0xff), (QtCore.QT_VERSION & 0xff)))
# Store help collection file in cache dir of assistant.
cacheDir = QtGui.QDesktopServices.storageLocation(QtGui.QDesktopServices.DataLocation) + "/Trolltech/Assistant"
helpDataFile = "qtdemo_%s.qhc" % QtCore.QT_VERSION_STR
dir = QtCore.QDir()
if not dir.exists(cacheDir):
dir.mkpath(cacheDir)
# Create the help engine (and a new helpDataFile if it does not exist).
self.helpEngine = QtHelp.QHelpEngineCore(cacheDir + helpDataFile)
self.helpEngine.setupData()
qtDocRoot = QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.DocumentationPath) + "/qch"
qtDocRoot = QtCore.QDir(qtDocRoot).absolutePath()
qchFiles = ["/qt.qch", "/designer.qch", "/linguist.qch"]
oldDir = self.helpEngine.customValue("docDir", QtCore.QVariant(QtCore.QString())).toString()
if oldDir != qtDocRoot:
for qchFile in qchFiles:
self.helpEngine.unregisterDocumentation(QtHelp.QHelpEngineCore.namespaceName(qtDocRoot + qchFile))
# If the data that the engine will work on is not yet registered, do it
# now.
for qchFile in qchFiles:
self.helpEngine.registerDocumentation(qtDocRoot + qchFile)
self.helpEngine.setCustomValue("docDir", QtCore.QVariant(qtDocRoot))
def setup(self):
self.initHelpEngine()
self.documentationDir = QtCore.QDir(
QtCore.QLibraryInfo.location(
QtCore.QLibraryInfo.DocumentationPath))
self.imagesDir = QtCore.QDir(self.documentationDir)
if self.documentationDir.cd("html") and self.documentationDir.cd("images"):
self.imagesDir.setPath(self.documentationDir.path())
self.documentationDir.cdUp()
else:
QtGui.QMessageBox.warning(self, self.tr("No Documentation Found"),
self.tr("I could not find the Qt documentation."))
self.maximumLabels = 0
self.demosDir = QtCore.QDir("./../../demos")
demoCategories = self.readInfo(":/demos.xml", self.demosDir)
self.examplesDir = QtCore.QDir("./../../")
exampleCategories = self.readInfo(":/examples.xml", self.examplesDir)
if demoCategories + exampleCategories <= 0:
QtGui.QMessageBox.warning(self, self.tr("No Examples or Demos found"),
self.tr("I could not find any PyQt examples or demos.\n"\
"Please ensure that PyQt is installed correctly."),
QtGui.QMessageBox.Cancel, QtGui.QMessageBox.NoButton)
return False
self.maximumLabels = max(demoCategories + exampleCategories, self.maximumLabels)
for category in self.categories:
self.maximumLabels = max(len(self.categories[category]['examples']) + 1, self.maximumLabels)
mainDescription = self.categories['[main]']['description']
if len(mainDescription) > 0:
mainDescription += self.tr("\n")
self.categories['[main]']['description'] = mainDescription + self.tr(
"<p>Press <b>Escape</b>, <b>Backspace</b>, or <b>%1</b> to "
"return to a previous menu.</p>"
"<p>Press <b>%2</b> to switch between normal and full screen "
"modes.</p>"
"<p>Use <b>%3</b> to exit the launcher.</p>") \
.arg(QtCore.QString(QtGui.QKeySequence(self.tr("Alt+Left")))) \
.arg(QtCore.QString(QtGui.QKeySequence(self.tr("Ctrl+F")))) \
.arg(QtCore.QString(QtGui.QKeySequence(self.tr("Ctrl+Q"))))
self.showPage.emit()
return True
def enableLaunching(self):
process = self.sender()
example = self.runningProcesses[process]
del self.runningProcesses[process]
process.deleteLater()
self.runningExamples.remove(example)
if example == self.currentExample:
for i in range(0, self.display.shapesCount()):
shape = self.display.shape(i)
if shape.metadata.get("launch", "") == example:
shape.metadata["fade"] = 15
self.display.enableUpdates()
self.slideshowTimer.start()
def executeAction(self, action):
if action == "parent":
self.showParentPage()
elif action == "exit":
if len(self.runningExamples) == 0:
self.display.displayEmpty.connect(self.close)
self.display.reset()
else:
self.close()
def launchExample(self, uniquename):
if uniquename in self.runningExamples:
return
process = QtCore.QProcess(self)
process.finished.connect(self.enableLaunching)
self.runningExamples.append(uniquename)
self.runningProcesses[process] = uniquename
if self.examples[uniquename]['changedirectory'] == 'true':
process.setWorkingDirectory(self.examples[uniquename]['absolute path'])
process.start(sys.executable, [self.examples[uniquename]['path']])
if process.state() == QtCore.QProcess.Starting:
self.slideshowTimer.stop()
def showCategories(self):
self.newPage()
self.fadeShapes()
self.currentCategory = ""
self.currentExample = ""
# Sort the category names excluding any "Qt" prefix.
def remove_Qt(cat):
if cat.startsWith("Qt "):
cat = cat[3:]
return cat
categories = [c for c in self.categories.keys() if c != "[main]"]
categories.sort(key=remove_Qt)
horizontalMargin = 0.025*self.width()
verticalMargin = 0.025*self.height()
title = TitleShape(self.tr("PyQt Examples and Demos"),
self.titleFont, QtGui.QPen(QtGui.QColor("#a6ce39")), QtCore.QPointF(),
QtCore.QSizeF(0.5*self.width(), 4*verticalMargin))
title.setPosition(QtCore.QPointF(self.width() / 2 - title.rect().width() / 2,
-title.rect().height()))
title.setTarget(QtCore.QPointF(title.position().x(), verticalMargin))
self.display.appendShape(title)
topMargin = 6*verticalMargin
bottomMargin = self.height() - 3.2*verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio, space/self.maximumLabels )
textHeight = self.fontRatio * step
startPosition = QtCore.QPointF(0.0, topMargin)
maxSize = QtCore.QSizeF(10.8*horizontalMargin, textHeight)
maxWidth = 0.0
newShapes = []
for category in categories:
caption = TitleShape(category, self.font(), QtGui.QPen(), QtCore.QPointF(startPosition), QtCore.QSizeF(maxSize))
caption.setPosition(QtCore.QPointF(-caption.rect().width(),
caption.position().y()))
caption.setTarget(QtCore.QPointF(2*horizontalMargin, caption.position().y()))
newShapes.append(caption)
startPosition += QtCore.QPointF(0.0, step)
maxWidth = max(maxWidth, caption.rect().width() )
exitButton = TitleShape(self.tr("Exit"), self.font(), QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(startPosition), QtCore.QSizeF(maxSize))
exitButton.setTarget(QtCore.QPointF(2*horizontalMargin, exitButton.position().y()))
newShapes.append(exitButton)
startPosition = QtCore.QPointF(self.width(), topMargin )
extra = (step - textHeight)/4
backgroundPath = QtGui.QPainterPath()
backgroundPath.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight + 2*extra)
for category in categories:
background = PanelShape(backgroundPath,
QtGui.QBrush(self.categories[category]['color']), QtGui.QBrush(QtGui.QColor("#e0e0ff")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["category"] = category
background.setInteractive(True)
background.setTarget(QtCore.QPointF(2*horizontalMargin,
background.position().y()))
self.display.insertShape(0, background)
startPosition += QtCore.QPointF(0.0, step)
exitPath = QtGui.QPainterPath()
exitPath.moveTo(-2*extra, -extra)
exitPath.lineTo(-8*extra, textHeight/2)
exitPath.lineTo(-extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2*extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2*extra, -extra)
exitPath.closeSubpath()
exitBackground = PanelShape(exitPath,
QtGui.QBrush(QtGui.QColor("#a6ce39")), QtGui.QBrush(QtGui.QColor("#c7f745")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 10*extra, textHeight + 2*extra))
exitBackground.metadata["action"] = "exit"
exitBackground.setInteractive(True)
exitBackground.setTarget(QtCore.QPointF(2*horizontalMargin,
exitBackground.position().y()))
self.display.insertShape(0, exitBackground)
for caption in newShapes:
position = caption.target()
size = caption.rect().size()
caption.setPosition(QtCore.QPointF(-maxWidth, position.y()))
self.display.appendShape(caption)
leftMargin = 3*horizontalMargin + maxWidth
rightMargin = self.width() - 3*horizontalMargin
description = DocumentShape(self.categories['[main]']['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space))
description.metadata["fade"] = 10
self.display.appendShape(description)
imageHeight = title.rect().height() + verticalMargin
qtLength = min(imageHeight, title.rect().left()-3*horizontalMargin)
qtMaxSize = QtCore.QSizeF(qtLength, qtLength)
qtShape = ImageShape(self.qtLogo,
QtCore.QPointF(2*horizontalMargin-extra, -imageHeight), qtMaxSize, 0,
QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
qtShape.metadata["fade"] = 15
qtShape.setTarget(QtCore.QPointF(qtShape.rect().x(), verticalMargin))
self.display.insertShape(0, qtShape)
trolltechMaxSize = QtCore.QSizeF(
self.width()-3*horizontalMargin-title.rect().right(), imageHeight)
trolltechShape = ImageShape(self.rbLogo,
QtCore.QPointF(self.width()-2*horizontalMargin-trolltechMaxSize.width()+extra,
-imageHeight),
trolltechMaxSize, 0, QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
trolltechShape.metadata["fade"] = 15
trolltechShape.setTarget(QtCore.QPointF(trolltechShape.rect().x(),
verticalMargin))
self.display.insertShape(0, trolltechShape)
self.addVersionAndCopyright(QtCore.QRectF(2*horizontalMargin,
self.height() - verticalMargin - textHeight,
self.width() - 4*horizontalMargin, textHeight))
def showExampleDocumentation(self, uniqueName):
# The connections may not already exist.
try:
self.display.displayEmpty.disconnect(self.resizeWindow)
self.display.displayEmpty.disconnect(self.close)
except:
pass
self.currentExample = uniqueName
url = self.helpRootUrl + self.examples[uniqueName]["document path"]
# Start assistant if it isn't already running.
if self.assistantProcess.state() != QtCore.QProcess.Running:
app = QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.BinariesPath) + QtCore.QDir.separator()
if sys.platform == 'darwin':
app += "Assistant.app/Contents/MacOS/Assistant"
else:
app += "assistant"
self.assistantProcess.start(app, ["-enableRemoteControl"])
if not self.assistantProcess.waitForStarted():
QtGui.QMessageBox.critical(None, "Qt Demo", "Could not start Qt Assistant.")
return
# Send command through remote control even if the process was started
# to activate assistant and bring it to front.
str = QtCore.QTextStream(self.assistantProcess)
str << "SetSource " << url << '\n'
def showExamples(self, category):
self.newPage()
self.fadeShapes()
self.currentCategory = category
self.currentExample = ""
horizontalMargin = 0.025*self.width()
verticalMargin = 0.025*self.height()
title = self.addTitle(category, verticalMargin)
self.addTitleBackground(title)
topMargin = 6*verticalMargin
bottomMargin = self.height() - 3.2*verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio, space/self.maximumLabels )
textHeight = self.fontRatio * step
startPosition = QtCore.QPointF(2*horizontalMargin, self.height()+topMargin)
finishPosition = QtCore.QPointF(2*horizontalMargin, topMargin)
maxSize = QtCore.QSizeF(32*horizontalMargin, textHeight)
maxWidth = 0.0
for example in self.categories[self.currentCategory]['examples']:
caption = TitleShape(example, self.font(), QtGui.QPen(), QtCore.QPointF(startPosition), QtCore.QSizeF(maxSize))
caption.setTarget(QtCore.QPointF(finishPosition))
self.display.appendShape(caption)
startPosition += QtCore.QPointF(0.0, step)
finishPosition += QtCore.QPointF(0.0, step)
maxWidth = max(maxWidth, caption.rect().width() )
menuButton = TitleShape(self.tr("Main Menu"), self.font(),
QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(startPosition),
QtCore.QSizeF(maxSize))
menuButton.setTarget(QtCore.QPointF(finishPosition))
self.display.appendShape(menuButton)
startPosition = QtCore.QPointF(self.width(), topMargin )
extra = (step - textHeight)/4
for example in self.categories[self.currentCategory]['examples']:
uniquename = self.currentCategory + "-" + example
path = QtGui.QPainterPath()
path.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight+2*extra)
background = PanelShape(path,
QtGui.QBrush(self.examples[uniquename]['color']),
QtGui.QBrush(QtGui.QColor("#e0e0ff")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["example"] = uniquename
background.setInteractive(True)
background.setTarget(QtCore.QPointF(2*horizontalMargin,
background.position().y()))
self.display.insertShape(0, background)
startPosition += QtCore.QPointF(0.0, step)
backPath = QtGui.QPainterPath()
backPath.moveTo(-2*extra, -extra)
backPath.lineTo(-8*extra, textHeight/2)
backPath.lineTo(-extra, textHeight + extra)
backPath.lineTo(maxWidth + 2*extra, textHeight + extra)
backPath.lineTo(maxWidth + 2*extra, -extra)
backPath.closeSubpath()
buttonBackground = PanelShape(backPath,
QtGui.QBrush(QtGui.QColor("#a6ce39")), QtGui.QBrush(QtGui.QColor("#c7f745")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 10*extra, textHeight + 2*extra))
buttonBackground.metadata["action"] = "parent"
buttonBackground.setInteractive(True)
buttonBackground.setTarget(QtCore.QPointF(2*horizontalMargin,
buttonBackground.position().y()))
self.display.insertShape(0, buttonBackground)
leftMargin = 3*horizontalMargin + maxWidth
rightMargin = self.width() - 3*horizontalMargin
description = DocumentShape(self.categories[self.currentCategory]['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space), 0)
description.metadata["fade"] = 10
self.display.appendShape(description)
self.addVersionAndCopyright(QtCore.QRectF(2*horizontalMargin,
self.height() - verticalMargin - textHeight,
self.width() - 4*horizontalMargin, textHeight))
def showExampleSummary(self, uniquename):
self.newPage()
self.fadeShapes()
self.currentExample = uniquename
horizontalMargin = 0.025*self.width()
verticalMargin = 0.025*self.height()
title = self.addTitle(self.examples[uniquename]['name'], verticalMargin)
titleBackground = self.addTitleBackground(title)
topMargin = 2*verticalMargin + titleBackground.rect().bottom()
bottomMargin = self.height() - 8*verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio,
( bottomMargin + 4.8*verticalMargin - topMargin )/self.maximumLabels )
footerTextHeight = self.fontRatio * step
leftMargin = 3*horizontalMargin
rightMargin = self.width() - 3*horizontalMargin
if 'description' in self.examples[self.currentExample]:
description = DocumentShape( self.examples[self.currentExample]['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin-leftMargin, space), 0 )
description.metadata["fade"] = 10
description.setPosition(QtCore.QPointF(description.position().x(),
0.8*self.height()-description.rect().height()))
self.display.appendShape(description)
space = description.position().y() - topMargin - 2*verticalMargin
if 'image files' in self.examples[self.currentExample]:
image = QtGui.QImage(self.examples[self.currentExample]['image files'][0])
imageMaxSize = QtCore.QSizeF(self.width() - 8*horizontalMargin, space)
self.currentFrame = ImageShape( image,
QtCore.QPointF(self.width()-imageMaxSize.width()/2, topMargin),
QtCore.QSizeF(imageMaxSize ))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(QtCore.QPointF(self.width()/2-imageMaxSize.width()/2,
topMargin))
self.display.appendShape(self.currentFrame)
if len(self.examples[self.currentExample]['image files']) > 1:
self.slideshowTimer.timeout.connect(self.updateExampleSummary)
self.slideshowFrame = 0
self.slideshowTimer.start()
maxSize = QtCore.QSizeF(0.3*self.width(),2*verticalMargin)
leftMargin = 0.0
rightMargin = 0.0
backButton = TitleShape(self.currentCategory, self.font(),
QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.1*self.width(), self.height()), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
backButton.setTarget(QtCore.QPointF(backButton.position().x(),
self.height() - 5.2*verticalMargin))
self.display.appendShape(backButton)
maxWidth = backButton.rect().width()
textHeight = backButton.rect().height()
extra = (3*verticalMargin - textHeight)/4
path = QtGui.QPainterPath()
path.moveTo(-extra, -extra)
path.lineTo(-4*extra, textHeight/2)
path.lineTo(-extra, textHeight + extra)
path.lineTo(maxWidth + 2*extra, textHeight + extra)
path.lineTo(maxWidth + 2*extra, -extra)
path.closeSubpath()
buttonBackground = PanelShape(path,
QtGui.QBrush(QtGui.QColor("#a6ce39")), QtGui.QBrush(QtGui.QColor("#c7f745")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(backButton.position()),
QtCore.QSizeF(maxWidth + 6*extra, textHeight + 2*extra))
buttonBackground.metadata["category"] = self.currentCategory
buttonBackground.setInteractive(True)
buttonBackground.setTarget(QtCore.QPointF(backButton.target()))
self.display.insertShape(0, buttonBackground)
leftMargin = buttonBackground.rect().right()
if 'absolute path' in self.examples[self.currentExample]:
launchCaption = TitleShape(self.tr("Launch"),
self.font(), QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.0, 0.0), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
launchCaption.setPosition(QtCore.QPointF(
0.9*self.width() - launchCaption.rect().width(), self.height()))
launchCaption.setTarget(QtCore.QPointF(launchCaption.position().x(),
self.height() - 5.2*verticalMargin))
self.display.appendShape(launchCaption)
maxWidth = launchCaption.rect().width()
textHeight = launchCaption.rect().height()
extra = (3*verticalMargin - textHeight)/4
path = QtGui.QPainterPath()
path.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight + 2*extra)
backgroundColor = QtGui.QColor("#a63e39")
highlightedColor = QtGui.QColor("#f95e56")
background = PanelShape(path,
QtGui.QBrush(backgroundColor), QtGui.QBrush(highlightedColor), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(launchCaption.position()),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["fade minimum"] = 120
background.metadata["launch"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(launchCaption.target()))
if self.currentExample in self.runningExamples:
background.metadata["highlight"] = True
background.metadata["highlight scale"] = 0.99
background.animate()
background.metadata["fade"] = -135
self.slideshowTimer.stop()
self.display.insertShape(0, background)
rightMargin = background.rect().left()
if self.examples[self.currentExample]['document path']:
documentCaption = TitleShape(self.tr("Show Documentation"),
self.font(), QtGui.QPen(QtCore.Qt.white), QtCore.QPointF(0.0, 0.0), QtCore.QSizeF(maxSize),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
if rightMargin == 0.0:
documentCaption.setPosition(QtCore.QPointF(
0.9*self.width() - documentCaption.rect().width(), self.height()))
else:
documentCaption.setPosition(QtCore.QPointF(
leftMargin/2 + rightMargin/2 - documentCaption.rect().width()/2,
self.height()))
documentCaption.setTarget(QtCore.QPointF(documentCaption.position().x(),
self.height() - 5.2*verticalMargin))
self.display.appendShape(documentCaption)
maxWidth = documentCaption.rect().width()
textHeight = documentCaption.rect().height()
extra = (3*verticalMargin - textHeight)/4
path = QtGui.QPainterPath()
path.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight + 2*extra)
background = PanelShape(path,
QtGui.QBrush(QtGui.QColor("#9c9cff")), QtGui.QBrush(QtGui.QColor("#cfcfff")), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF(documentCaption.position()),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["fade minimum"] = 120
background.metadata["documentation"] = self.currentExample
background.setInteractive(True)
background.setTarget(QtCore.QPointF(documentCaption.target()))
self.display.insertShape(0, background)
self.addVersionAndCopyright(QtCore.QRectF(2*horizontalMargin,
self.height() - verticalMargin - footerTextHeight,
self.width() - 4*horizontalMargin, footerTextHeight))
def showParentPage(self):
self.slideshowTimer.stop()
# The connection may not already exist.
try:
self.slideshowTimer.timeout.disconnect(self.updateExampleSummary)
except:
pass
if len(self.currentExample) > 0:
self.currentExample = ""
self.redisplayWindow()
elif len(self.currentCategory) > 0:
self.currentCategory = ""
self.redisplayWindow()
def updateExampleSummary(self):
if 'image files' in self.examples[self.currentExample]:
self.currentFrame.metadata["fade"] = -15
self.currentFrame.setTarget(QtCore.QPointF((self.currentFrame.position() -
QtCore.QPointF(0.5*self.width(), 0))))
self.slideshowFrame = (self.slideshowFrame+1) % len(self.examples[self.currentExample]['image files'])
image = QtGui.QImage(self.examples[self.currentExample]['image files'][self.slideshowFrame])
imageSize = self.currentFrame.maxSize
imagePosition = QtCore.QPointF(self.width() - imageSize.width()/2,
self.currentFrame.position().y())
self.currentFrame = ImageShape(image, QtCore.QPointF(imagePosition), QtCore.QSizeF(imageSize))
self.currentFrame.metadata["fade"] = 15
self.currentFrame.setTarget(QtCore.QPointF(self.width()/2-imageSize.width()/2,
imagePosition.y()))
self.display.appendShape(self.currentFrame)
def closeEvent(self, event):
if len(self.runningExamples) > 0:
if QtGui.QMessageBox.warning(self, self.tr("Examples Running"),
self.tr("There are examples running. Do you really want to exit?"),
QtGui.QMessageBox.Yes, QtGui.QMessageBox.No ) == QtGui.QMessageBox.No:
event.ignore()
return
for example in list(self.runningProcesses.keys()):
example.terminate()
example.waitForFinished(1000)
self.runningProcesses.clear()
self.resizeTimer.stop()
self.slideshowTimer.stop()
def resizeEvent(self, event):
self.documentFont = QtGui.QFont(self.font())
self.documentFont.setPointSizeF(min(self.documentFont.pointSizeF()*self.width()/640.0,
self.documentFont.pointSizeF()*self.height()/480.0))
if self.inFullScreenResize:
self.windowResized.emit()
self.inFullScreenResize = False
elif self.currentCategory != "[starting]":
self.resizeTimer.start(500)
def toggleFullScreen(self):
if self.inFullScreenResize:
return
self.inFullScreenResize = True
self.displaydisplayEmpty.connect(self.resizeWindow,
type=QtCore.Qt.QueuedConnection)
self.display.reset()
def redisplayWindow(self):
if len(self.currentExample) > 0:
self.showExampleSummary(self.currentExample)
elif len(self.currentCategory) > 0:
self.showExamples(self.currentCategory)
else:
self.showCategories()
def resizeWindow(self):
self.display.displayEmpty.disconnect(self.resizeWindow)
if self.isFullScreen():
self.showNormal()
else:
self.showFullScreen()
def addTitle(self, title, verticalMargin):
titlePosition = QtCore.QPointF(0.0, 2*verticalMargin)
newTitle = TitleShape(title, self.titleFont, QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(titlePosition), QtCore.QSizeF(0.5*self.width(), 2*verticalMargin ),
QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop )
newTitle.setPosition(QtCore.QPointF(-newTitle.rect().width(), titlePosition.y()))
newTitle.setTarget(QtCore.QPointF(0.25*self.width(), titlePosition.y()))
newTitle.metadata["fade"] = 15
self.display.appendShape(newTitle)
return newTitle
def addTitleBackground(self, titleShape):
backgroundPath = QtGui.QPainterPath()
backgroundPath.addRect(0, -titleShape.rect().height()*0.3, self.width(),
titleShape.rect().height()*1.6)
titleBackground = PanelShape(backgroundPath, QtGui.QBrush(QtGui.QColor("#a6ce39") ),
QtGui.QBrush(QtGui.QColor("#a6ce39") ), QtGui.QPen(QtCore.Qt.NoPen),
QtCore.QPointF( self.width(), titleShape.position().y() ),
QtCore.QSizeF(backgroundPath.boundingRect().size() ))
titleBackground.setTarget(QtCore.QPointF(0.0, titleShape.position().y()))
self.display.insertShape(0, titleBackground)
return titleBackground
def readExampleDescription(self, parentNode):
node = parentNode.firstChild()
description = ""
while not node.isNull():
if node.isText():
description += node.nodeValue()
elif node.hasChildNodes():
if node.nodeName() == "b":
beginTag = "<b>"
endTag = "</b>"
elif node.nodeName() == "a":
beginTag = "<font color=\"blue\">"
endTag = "</font>"
elif node.nodeName() == "i":
beginTag = "<i>"
endTag = "</i>"
elif node.nodeName() == "tt":
beginTag = "<tt>"
endTag = "</tt>"
description += beginTag + self.readExampleDescription(node) + endTag
node = node.nextSibling()
return description
def readInfo(self, resource, dir_):
categoriesFile = QtCore.QFile(resource)
document = QtXml.QDomDocument()
document.setContent(categoriesFile)
documentElement = document.documentElement()
categoryNodes = documentElement.elementsByTagName("category")
self.categories['[main]'] = {}
self.categories['[main]']['examples'] = []
self.categories['[main]']['color'] = QtGui.QColor("#f0f0f0")
self.readCategoryDescription(dir_, '[main]')
self.qtLogo.load(self.imagesDir.absoluteFilePath(":/images/qt4-logo.png"))
self.rbLogo.load(self.imagesDir.absoluteFilePath(":/images/rb-logo.png"))
for i in range(categoryNodes.length()):
elem = categoryNodes.item(i).toElement()
categoryName = QtCore.QString(elem.attribute("name"))
categoryDirName = QtCore.QString(elem.attribute("dirname"))
categoryDocName = QtCore.QString(elem.attribute("docname"))
categoryColor = QtGui.QColor(elem.attribute("color", "#f0f0f0"))
categoryDir = QtCore.QDir(dir_)
if categoryDir.cd(categoryDirName):
self.categories[categoryName] = {}
self.readCategoryDescription(categoryDir, categoryName)
self.categories[categoryName]['examples'] = []
exampleNodes = elem.elementsByTagName("example")
self.maximumLabels = max(self.maximumLabels, exampleNodes.length())
# Only add those examples we can find.
for j in range(exampleNodes.length()):
exampleDir = QtCore.QDir(categoryDir)
exampleNode = exampleNodes.item(j)
element = exampleNode.toElement()
exampleName = element.attribute("name")
exampleFileName = element.attribute("filename")
uniqueName = categoryName + "-" + exampleName
self.examples[uniqueName] = {}
if not categoryDocName.isEmpty():
docName = categoryDocName + "-" + exampleFileName + ".html"
else:
docName = categoryDirName + "-" + exampleFileName + ".html"
self.examples[uniqueName]['name'] = exampleName
self.examples[uniqueName]['document path'] = ""
self.findDescriptionAndImages(uniqueName, docName)
self.examples[uniqueName]['changedirectory'] = element.attribute("changedirectory", "true")
self.examples[uniqueName]['color'] = QtGui.QColor(element.attribute("color", "#f0f0f0"))
if element.attribute("executable", "true") != "true":
del self.examples[uniqueName]
continue
examplePath = None
if sys.platform == "win32":
examplePyName = exampleFileName + ".pyw"
else:
examplePyName = exampleFileName + ".py"
if exampleDir.exists(examplePyName):
examplePath = exampleDir.absoluteFilePath(examplePyName)
elif exampleDir.cd(exampleFileName):
if exampleDir.exists(examplePyName):
examplePath = exampleDir.absoluteFilePath(examplePyName)
if examplePath and not examplePath.isNull():
self.examples[uniqueName]['absolute path'] = exampleDir.absolutePath()
self.examples[uniqueName]['path'] = examplePath
self.categories[categoryName]['examples'].append(exampleName)
else:
del self.examples[uniqueName]
self.categories[categoryName]['color'] = categoryColor
return len(self.categories)
def addVersionAndCopyright(self, rect):
versionCaption = TitleShape(QtCore.QString("Qt %1").arg(QtCore.QT_VERSION_STR),
self.font(), QtGui.QPen(QtGui.QColor(0,0,0,0)),
QtCore.QPointF(rect.center().x(), rect.top()),
QtCore.QSizeF(0.5*rect.width(), rect.height()),
QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
versionCaption.metadata["fade"] = 15
self.display.appendShape(versionCaption)
copyrightCaption = TitleShape(QtCore.QString("Copyright \xa9 2005-2006 Trolltech AS"),
self.font(), QtGui.QPen(QtGui.QColor(0,0,0,0)),
QtCore.QPointF(rect.topLeft()),
QtCore.QSizeF(0.5*rect.width(), rect.height()),
QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
copyrightCaption.metadata["fade"] = 15
self.display.appendShape(copyrightCaption)
def fadeShapes(self):
for i in range(0, self.display.shapesCount()):
shape = self.display.shape(i)
shape.metadata["fade"] = -15
shape.metadata["fade minimum"] = 0
def findDescriptionAndImages(self, uniqueName, docName):
if self.documentationDir.exists(docName):
self.examples[uniqueName]['document path'] = docName
exampleDoc = QtXml.QDomDocument()
exampleFile = QtCore.QFile(self.documentationDir.absoluteFilePath(docName))
exampleDoc.setContent(exampleFile)
paragraphs = exampleDoc.elementsByTagName("p")
for p in range(paragraphs.length()):
descriptionNode = paragraphs.item(p)
description = self.readExampleDescription(descriptionNode)
if QtCore.QString(description).indexOf(QtCore.QRegExp(QtCore.QString("((The|This) )?(%1 )?.*(example|demo)").arg(self.examples[uniqueName]['name']), QtCore.Qt.CaseInsensitive)) != -1:
self.examples[uniqueName]['description'] = description
break
images = exampleDoc.elementsByTagName("img")
imageFiles = []
for i in range(images.length()):
imageElement = images.item(i).toElement()
source = QtCore.QString(imageElement.attribute("src"))
if "-logo" not in source:
imageFiles.append(self.documentationDir.absoluteFilePath(source))
if len(imageFiles) > 0:
self.examples[uniqueName]['image files'] = imageFiles
def newPage(self):
self.slideshowTimer.stop()
# The connections may not already exist.
try:
self.slideshowTimer.timeout.disconnect(self.updateExampleSummary)
self.display.displayEmpty.disconnect(self.resizeWindow)
except:
pass
def readCategoryDescription(self, categoryDir, categoryName):
if categoryDir.exists("README"):
file = QtCore.QFile(categoryDir.absoluteFilePath("README"))
if not file.open(QtCore.QFile.ReadOnly):
return
inputStream = QtCore.QTextStream(file)
paragraphs = []
currentPara = []
openQuote = True
while not inputStream.atEnd():
line = inputStream.readLine()
at = line.indexOf("\"", 0)
while at != -1:
if openQuote:
line.replace(at, 1, QtCore.QChar(QtCore.QChar.Punctuation_InitialQuote))
else:
line.replace(at, 1, QtCore.QChar(QtCore.QChar.Punctuation_FinalQuote))
openQuote = not openQuote
at = line.indexOf("\"", at)
if not line.trimmed().isEmpty():
currentPara.append(str(line.trimmed()))
elif len(currentPara) > 0:
paragraphs.append(" ".join(currentPara))
currentPara = []
else:
break
if len(currentPara) > 0:
paragraphs.append(" ".join(currentPara))
self.categories[categoryName]['description'] = "<p>"+"\n</p><p>".join(paragraphs)+"</p>"
def slotShowPage(self):
self.showPage.emit()
def showCategories(self):
self.newPage()
self.fadeShapes()
self.currentCategory = ""
self.currentExample = ""
# Sort the category names excluding any "Qt" prefix.
def remove_Qt(cat):
if cat.startsWith("Qt "):
cat = cat[3:]
return cat
categories = [c for c in self.categories.keys() if c != "[main]"]
categories.sort(key=remove_Qt)
horizontalMargin = 0.025*self.width()
verticalMargin = 0.025*self.height()
title = TitleShape(self.tr("PyQt Examples and Demos"),
self.titleFont, QtGui.QPen(QtGui.QColor("#a6ce39")), QtCore.QPointF(),
QtCore.QSizeF(0.5*self.width(), 4*verticalMargin))
title.setPosition(QtCore.QPointF(self.width() / 2 - title.rect().width() / 2,
-title.rect().height()))
title.setTarget(QtCore.QPointF(title.position().x(), verticalMargin))
self.display.appendShape(title)
topMargin = 6*verticalMargin
bottomMargin = self.height() - 3.2*verticalMargin
space = bottomMargin - topMargin
step = min(title.rect().height() / self.fontRatio, space/self.maximumLabels )
textHeight = self.fontRatio * step
startPosition = QtCore.QPointF(0.0, topMargin)
maxSize = QtCore.QSizeF(10.8*horizontalMargin, textHeight)
maxWidth = 0.0
newShapes = []
for category in categories:
caption = TitleShape(category, self.font(), QtGui.QPen(), QtCore.QPointF(startPosition), QtCore.QSizeF(maxSize))
caption.setPosition(QtCore.QPointF(-caption.rect().width(),
caption.position().y()))
caption.setTarget(QtCore.QPointF(2*horizontalMargin, caption.position().y()))
newShapes.append(caption)
startPosition += QtCore.QPointF(0.0, step)
maxWidth = max(maxWidth, caption.rect().width() )
exitButton = TitleShape(self.tr("Exit"), self.font(), QtGui.QPen(QtCore.Qt.white),
QtCore.QPointF(startPosition), QtCore.QSizeF(maxSize))
exitButton.setTarget(QtCore.QPointF(2*horizontalMargin, exitButton.position().y()))
newShapes.append(exitButton)
startPosition = QtCore.QPointF(self.width(), topMargin )
extra = (step - textHeight)/4
backgroundPath = QtGui.QPainterPath()
backgroundPath.addRect(-2*extra, -extra, maxWidth + 4*extra, textHeight + 2*extra)
for category in categories:
background = PanelShape(backgroundPath,
QtGui.QBrush(self.categories[category]['color']), QtGui.QBrush(QtGui.QColor("#e0e0ff")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 4*extra, textHeight + 2*extra))
background.metadata["category"] = category
background.setInteractive(True)
background.setTarget(QtCore.QPointF(2*horizontalMargin,
background.position().y()))
self.display.insertShape(0, background)
startPosition += QtCore.QPointF(0.0, step)
exitPath = QtGui.QPainterPath()
exitPath.moveTo(-2*extra, -extra)
exitPath.lineTo(-8*extra, textHeight/2)
exitPath.lineTo(-extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2*extra, textHeight + extra)
exitPath.lineTo(maxWidth + 2*extra, -extra)
exitPath.closeSubpath()
exitBackground = PanelShape(exitPath,
QtGui.QBrush(QtGui.QColor("#a6ce39")), QtGui.QBrush(QtGui.QColor("#c7f745")),
QtGui.QPen(QtCore.Qt.NoPen), QtCore.QPointF(startPosition),
QtCore.QSizeF(maxWidth + 10*extra, textHeight + 2*extra))
exitBackground.metadata["action"] = "exit"
exitBackground.setInteractive(True)
exitBackground.setTarget(QtCore.QPointF(2*horizontalMargin,
exitBackground.position().y()))
self.display.insertShape(0, exitBackground)
for caption in newShapes:
position = caption.target()
size = caption.rect().size()
caption.setPosition(QtCore.QPointF(-maxWidth, position.y()))
self.display.appendShape(caption)
leftMargin = 3*horizontalMargin + maxWidth
rightMargin = self.width() - 3*horizontalMargin
description = DocumentShape(self.categories['[main]']['description'],
self.documentFont, QtCore.QPointF(leftMargin, topMargin),
QtCore.QSizeF(rightMargin - leftMargin, space))
description.metadata["fade"] = 10
self.display.appendShape(description)
imageHeight = title.rect().height() + verticalMargin
qtLength = min(imageHeight, title.rect().left()-3*horizontalMargin)
qtMaxSize = QtCore.QSizeF(qtLength, qtLength)
qtShape = ImageShape(self.qtLogo,
QtCore.QPointF(2*horizontalMargin-extra, -imageHeight), qtMaxSize, 0,
QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
qtShape.metadata["fade"] = 15
qtShape.setTarget(QtCore.QPointF(qtShape.rect().x(), verticalMargin))
self.display.insertShape(0, qtShape)
trolltechMaxSize = QtCore.QSizeF(
self.width()-3*horizontalMargin-title.rect().right(), imageHeight)
trolltechShape = ImageShape(self.rbLogo,
QtCore.QPointF(self.width()-2*horizontalMargin-trolltechMaxSize.width()+extra,
-imageHeight),
trolltechMaxSize, 0, QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
trolltechShape.metadata["fade"] = 15
trolltechShape.setTarget(QtCore.QPointF(trolltechShape.rect().x(),
verticalMargin))
self.display.insertShape(0, trolltechShape)
self.addVersionAndCopyright(QtCore.QRectF(2*horizontalMargin,
self.height() - verticalMargin - textHeight,
self.width() - 4*horizontalMargin, textHeight))