def openFrameGroup(self, fgroup):
'''Slot to know when the application opens a new framegroup'''
frameCount = len(fgroup)
self.ui.frameSlider.setMaximum(frameCount -1)
# render previews
f0 = fgroup[0][0].asQPixmap()
previewW = self.ui.previewLabel.width()
previewH = self.ui.previewLabel.height()
previewPmap = QtGui.QPixmap(previewW, previewH)
previewPmap.fill()
scaledW = f0.width() * previewH / f0.height()
printCount = int(previewW) / int(scaledW) # int division
freeSpace = float(previewW - (printCount * scaledW)) / (printCount - 1)
painter = QtGui.QPainter(previewPmap)
for i in xrange(printCount):
fid = int(round(float(i * (frameCount-1)) / (printCount-1)))
x = int(round(i * (freeSpace + scaledW)))
frame = fgroup[fid][0].asQPixmap().scaled(scaledW, previewH)
painter.drawPixmap(x,0,frame)
painter.end()
self.ui.previewLabel.setPixmap(previewPmap)
# render the current frame
self.ui.frameLabel.setPixmap(fgroup.current()[0].asQPixmap())
def asQPixmap(self):
'''Returns a qpixmap for this frame'''
if self._rgbdata is not None:
height, width = self._rgbdata.shape[:2]
qimg = QtGui.QImage(self._rgbdata, width, height,
QtGui.QImage.Format_RGB888)
else:
qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGB888)
return QtGui.QPixmap.fromImage(qimg)
def updateWidgetPosition(self):
'''Resizes widget to content size and repositions within parent'''
if len(self._messages) > 0:
self.show()
pw = self.parent().childrenRect().width()
ph = self.parent().childrenRect().height()
# check size of each message
w = 0
h = 0
fm = QtGui.QFontMetrics(self.font())
msgposs = []
for group in self._messageorder:
msg = self._messages[group][1]
mw = fm.width(msg) + 2
msgposs.append((mw, h + fm.ascent()))
w = max(w, mw)
h += fm.height() + 2
#TODO: make this scale the font size
# calculate the left positions
self._msgposs = []
for msgpos in msgposs:
self._msgposs.append(((w - msgpos[0]) / 2, msgpos[1]))
# resize/position widget
self.setGeometry((pw - w) / 2, (ph - h) / 2, w, h)
# refresh the screen
self.update()
else:
self.hide()
def drawWidget(self, qp):
if None in self._messages:
# outlined text
#TODO: make the text colours into settings
i = 0
for group in self._messageorder:
msg = self._messages[group][1]
msgpos = self._msgposs[i]
path = QtGui.QPainterPath()
path.addText(QtCore.QPoint(*msgpos), self.font(), msg)
qp.setPen(QtGui.QPen(QtCore.Qt.white, 1.5,
QtCore.Qt.SolidLine))
qp.setBrush(QtCore.Qt.black)
qp.drawPath(path)
i += 1
def main(argv):
args = argv[1:]
args.insert(0, "After Touches")
app = QtGui.QApplication(args)
runtime = AfterTouchesApplication()
rc = app.exec_()
runtime.cleanup()
sys.exit(rc)
def main(argv):
args = argv[1:]
args.insert(0, "Delay Analysis")
app = QtGui.QApplication(args)
runtime = DelayVideoApplication()
rc = app.exec_()
runtime.cleanup()
sys.exit(rc)
def convertFrame(self):
try:
height, width = self.currentFrame.shape[:2]
# print "%s, %s" %(width, height)
img = QtGui.QImage(self.currentFrame, width, height,
QtGui.QImage.Format_RGB888)
img = QtGui.QPixmap.fromImage(img)
self.previousFrame = self.currentFrame
return img
except:
return None
def convertFrame(self):
"""
converts frame to format suitable for QtGui
"""
try:
height,width=self.currentFrame.shape[:2]
img=QtGui.QImage(self.currentFrame,
width,
height,
QtGui.QImage.Format_RGB888)
img=QtGui.QPixmap.fromImage(img)
self.previousFrame = self.currentFrame
return img
except:
return None
def __init__(self, parent=None, settings=None, *args, **kwargs):
QtGui.QWidget.__init__(self, parent, *args, **kwargs)
self._settings = settings
self._messages = {}
self._messageorder = []
self.setFont(QtGui.QFont("Liberation Sans",
72)) #TODO: put font face in config file
if parent is not None:
#TODO: make sure it has a resized signal
parent.resized.connect(self.parentResized)
self._baseline = 0
self._clearTimer = QtCore.QTimer(self)
self._clearTimer.timeout.connect(self.clearTimeout)
self._clearTimer.start(100)
self.updateWidgetPosition()
def paintEvent(self, e):
qp = QtGui.QPainter()
qp.begin(self)
qp.Antialiasing = True
self.drawWidget(qp)
qp.end()
def asQImage(self):
'''Returns a qimage version of this frame'''
height, width = self._rgbdata.shape[:2]
return QtGui.QImage(self._rgbdata, width, height,
QtGui.QImage.Format_RGB888)
def asQImage(self):
'''Returns a qimage version of this frame'''
if self._qimage is None:
self._qimage = QtGui.QImage(self._filename)
return self._qimage
def asQPixmap(self):
'''Returns a qpixmap for this frame'''
if self._qpixmap is None:
self._qpixmap = QtGui.QPixmap(self._filename)
return self._qpixmap
def main():
app = QtGui.QApplication(sys.argv)
ex = Gui()
ex.show()
sys.exit(app.exec_())