def draw_word_boxes(self, word_boxes: list) -> None:
"""Sets up and draws translated words and their corresponding frames
:param word_boxes: list of WordBox namedtuples, each representing a word and frame to be drawn.
ex: [WordBox('word'=str, 'geometry'=[(int, int)], WordBox('word'=str, 'geometry'=[(int, int)])
"""
for wPoly in self.__word_polygons:
self.__scene.removeItem(wPoly[0])
self.__scene.removeItem(wPoly[1])
self.__word_polygons = []
for word_box in word_boxes:
points = list(map(lambda x: QPoint(x[0], x[1]), word_box.geometry))
text = QGraphicsTextItem(word_box.word)
text.setOpacity(0)
text.setAcceptHoverEvents(False)
font = QFont()
font.setPixelSize(abs(points[0].y() - points[3].y()))
text.setFont(font)
w = text.boundingRect().width()
h = text.boundingRect().height()
text.setPos(
points[0].x() + abs(points[0].x() - points[1].x()) / 2 - w / 2,
points[0].y() + abs(points[0].y() - points[3].y()) / 2 - h / 2)
frame = WordPolygon(QPolygonF(QPolygon(points)), text)
self.__word_polygons.append([text, frame])
self.__scene.addItem(frame)
self.__scene.addItem(text)
class fadingPic(QObject):
""" Wrap a QGraphicsPixmapItem and impliment the fade in/out animation"""
def __init__(self, pixmap, parent=None):
super().__init__(parent)
self.pixmap_item = QGraphicsPixmapItem(pixmap)
self.text_item = QGraphicsTextItem(
"Nerual Network based Channel Learning")
font = QFont("Nokia Pure Text Light", 18) # QFont.Bold
self.text_item.setFont(font)
self.text_item.setDefaultTextColor(QColor(18, 65, 145))
def _set_opacity(self, opc):
self.pixmap_item.setOpacity(opc)
self.text_item.setOpacity(opc)
def fadeIn(self):
anim = QPropertyAnimation(self, b'opacity')
anim.setDuration(800)
anim.setStartValue(0)
anim.setEndValue(1)
#anim.setLoopCount(1)
return anim
def fadeOut(self):
anim = QPropertyAnimation(self, b'opacity')
anim.setDuration(800)
anim.setStartValue(1)
anim.setEndValue(0)
#anim.setLoopCount(1)
return anim
opacity = pyqtProperty(float, fset=_set_opacity)
def populate(self):
font = QtGui.QFont('White Rabbit')
font.setPointSize(120)
self.dot1 = QGraphicsTextItem(':')
self.dot1.setFont(font)
self.dot1.setPos(140, 0)
self.scene.addItem(self.dot1)
self.dot2 = QGraphicsTextItem(':')
self.dot2.setFont(font)
self.dot2.setPos(410, 0)
self.scene.addItem(self.dot2)
for i in range(60):
l = QGraphicsTextItem(str(i % 10))
l.setFont(font)
l.setZValue(-100)
l.setPos(randint(0, 500), randint(150, 300))
l.setOpacity(.3)
self.scene.addItem(l)
self.digits.append(l)
def populate(self):
self.digits = []
self.animations = []
# This is just a nice font, use any font you like, or none
font = QFont('White Rabbit')
font.setPointSize(120)
# Create three ":" and place them in our scene
self.dot1 = QGraphicsTextItem(':') # from QtGui
self.dot1.setFont(font)
self.dot1.setPos(140, 0)
self._scene.addItem(self.dot1)
self.dot2 = QGraphicsTextItem(':')
self.dot2.setFont(font)
self.dot2.setPos(410, 0)
self._scene.addItem(self.dot2)
# Create 6 sets of 0-9 digits
for i in range(60):
t_item = QGraphicsTextItem(str(i % 10))
t_item.setFont(font)
# The zvalue is what controls what appears "on top" of what.
# Send them to "the bottom" of the scene.
t_item.setZValue(-100)
# Place them anywhere
t_item.setPos(randint(0, 500), randint(150, 300))
# Make them semi-transparent
t_item.setOpacity(.3)
# Put them in the scene
self._scene.addItem(t_item)
# Keep a reference for internal purposes
self.digits.append(t_item)
