def setupGuides(self):
x = 0
y = 20
self.qtGuide1 = GuideCircle(QtCore.QRectF(x, y, 260, 260), -36, 342)
GuideLine(QtCore.QPointF(x + 240, y + 268), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 265, y + 246), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 158, y + 134), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 184, y + 109), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 160, y + 82), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 77, y + 163), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 100, y + 190), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 132, y + 159), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 188, y + 211), self.qtGuide1)
GuideCircle(QtCore.QRectF(x + 30, y + 30, 200, 200), -30, 336, GuideCircle.CW, self.qtGuide1)
GuideLine(QtCore.QPointF(x + 238, y + 201), self.qtGuide1)
y = 30
self.qtGuide2 = GuideCircle(QtCore.QRectF(x + 30, y + 30, 200, 200), 135, 270, GuideCircle.CCW)
GuideLine(QtCore.QPointF(x + 222, y + 38), self.qtGuide2)
GuideCircle(QtCore.QRectF(x, y, 260, 260), 135, 270, GuideCircle.CW, self.qtGuide2)
GuideLine(QtCore.QPointF(x + 59, y + 59), self.qtGuide2)
x = 115
y = 10
self.qtGuide3 = GuideLine(QtCore.QLineF(x, y, x + 30, y))
GuideLine(QtCore.QPointF(x + 30, y + 170), self.qtGuide3)
GuideLine(QtCore.QPointF(x, y + 170), self.qtGuide3)
GuideLine(QtCore.QPointF(x, y), self.qtGuide3)
self.qtGuide1.setFence(QtCore.QRectF(0, 0, 800, 600))
self.qtGuide2.setFence(QtCore.QRectF(0, 0, 800, 600))
self.qtGuide3.setFence(QtCore.QRectF(0, 0, 800, 600))
class ItemCircleAnimation(DemoItem):
sscene = None
def __init__(self, scene=None, parent=None):
super(ItemCircleAnimation, self).__init__(scene, parent)
ItemCircleAnimation.sscene = scene
self.letterList = []
self.letterCount = Colors.tickerLetterCount
self.scale = 1.0
self.showCount = -1
self.tickOnPaint = False
self.paused = False
self.doIntroTransitions = True
self.setAcceptsHoverEvents(True)
self.setCursor(QtCore.Qt.OpenHandCursor)
self.setupGuides()
self.setupLetters()
self.useGuideQt()
self.effect = None
self.mouseMoveLastPosition = QtCore.QPointF()
self.tickTimer = QtCore.QTime()
def createLetter(self, c):
letter = LetterItem(c, ItemCircleAnimation.sscene, self)
self.letterList.append(letter)
def setupLetters(self):
self.letterList = []
s = Colors.tickerText
tlen = len(s)
room = self.letterCount
while room >= tlen:
for c in s:
self.createLetter(c)
room -= tlen
# Fill in with blanks.
while room > 0:
self.createLetter(' ')
room -= 1
def setupGuides(self):
x = 0
y = 20
self.qtGuide1 = GuideCircle(QtCore.QRectF(x, y, 260, 260), -36, 342)
GuideLine(QtCore.QPointF(x + 240, y + 268), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 265, y + 246), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 158, y + 134), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 184, y + 109), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 160, y + 82), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 77, y + 163), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 100, y + 190), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 132, y + 159), self.qtGuide1)
GuideLine(QtCore.QPointF(x + 188, y + 211), self.qtGuide1)
GuideCircle(QtCore.QRectF(x + 30, y + 30, 200, 200), -30, 336, GuideCircle.CW, self.qtGuide1)
GuideLine(QtCore.QPointF(x + 238, y + 201), self.qtGuide1)
y = 30
self.qtGuide2 = GuideCircle(QtCore.QRectF(x + 30, y + 30, 200, 200), 135, 270, GuideCircle.CCW)
GuideLine(QtCore.QPointF(x + 222, y + 38), self.qtGuide2)
GuideCircle(QtCore.QRectF(x, y, 260, 260), 135, 270, GuideCircle.CW, self.qtGuide2)
GuideLine(QtCore.QPointF(x + 59, y + 59), self.qtGuide2)
x = 115
y = 10
self.qtGuide3 = GuideLine(QtCore.QLineF(x, y, x + 30, y))
GuideLine(QtCore.QPointF(x + 30, y + 170), self.qtGuide3)
GuideLine(QtCore.QPointF(x, y + 170), self.qtGuide3)
GuideLine(QtCore.QPointF(x, y), self.qtGuide3)
self.qtGuide1.setFence(QtCore.QRectF(0, 0, 800, 600))
self.qtGuide2.setFence(QtCore.QRectF(0, 0, 800, 600))
self.qtGuide3.setFence(QtCore.QRectF(0, 0, 800, 600))
def useGuide(self, guide, firstLetter, lastLetter):
padding = guide.lengthAll() / float(lastLetter - firstLetter)
for i, letter in enumerate(self.letterList[firstLetter:lastLetter]):
letter.useGuide(guide, i * padding)
def useGuideQt(self):
if self.currGuide is not self.qtGuide1:
self.useGuide(self.qtGuide1, 0, self.letterCount)
self.currGuide = self.qtGuide1
def useGuideTt(self):
if self.currGuide is not self.qtGuide2:
split = int(self.letterCount * 5.0 / 7.0)
self.useGuide(self.qtGuide2, 0, split)
self.useGuide(self.qtGuide3, split, self.letterCount)
self.currGuide = self.qtGuide2
def boundingRect(self):
return QtCore.QRectF(0, 0, 300, 320)
def prepare(self):
pass
def switchToNextEffect(self):
self.showCount += 1
if self.showCount == 1:
self.effect = EffectSnake(self.letterList)
elif self.showCount == 2:
self.effect = EffectLine(self.letterList)
self.effect.setPostEffect(PostRotateXYTwist(0.01, 0.0, 0.003, 0.0))
elif self.showCount == 3:
self.effect = EffectRaindrops(self.letterList)
self.effect.setPostEffect(PostRotateXYTwist(0.01, 0.005, 0.003, 0.003))
elif self.showCount == 4:
self.effect = EffectScan(self.letterList)
self.effect.normalMoveSpeed = 0
self.effect.setPostEffect(PostRotateXY(0.008, 0.0, 0.005, 0.0))
else:
self.showCount = 0
self.effect = EffectWhirlWind(self.letterList)
def animationStarted(self, id):
if id == DemoItemAnimation.ANIM_IN:
if self.doIntroTransitions:
# Make all letters disappear.
for letter in self.letterList:
letter.setPos(1000, 0)
self.switchToNextEffect()
self.useGuideQt()
self.scale = 1.0
# The first time we run, we have a rather large delay to
# perform benchmark before the ticker shows. But now, since we
# are showing, use a more appropriate value.
self.currentAnimation.startDelay = 1500
elif self.effect is not None:
self.effect.useSheepDog = False
self.tickTimer = QtCore.QTime.currentTime()
def animationStopped(self, _):
pass
def swapModel(self):
if self.currGuide is self.qtGuide2:
self.useGuideQt()
else:
self.useGuideTt()
def hoverEnterEvent(self, event):
# Skip swap here to enhance ticker dragging.
pass
def hoverLeaveEvent(self, event):
self.swapModel()
def setTickerScale(self, s):
self.scale = s
self.qtGuide1.setScale(self.scale, self.scale)
self.qtGuide2.setScale(self.scale, self.scale)
self.qtGuide3.setScale(self.scale, self.scale)
def mousePressEvent(self, event):
self.mouseMoveLastPosition = event.scenePos();
if event.button() == QtCore.Qt.LeftButton:
self.setCursor(QtCore.Qt.ClosedHandCursor)
else:
self.switchToNextEffect()
def mouseReleaseEvent(self, event):
if event.button() == QtCore.Qt.LeftButton:
self.setCursor(QtCore.Qt.OpenHandCursor)
def mouseMoveEvent(self, event):
newPosition = event.scenePos()
self.setPosUsingSheepDog(self.pos() + newPosition - self.mouseMoveLastPosition, QtCore.QRectF(-260, -280, 1350, 1160))
self.mouseMoveLastPosition = newPosition
def wheelEvent(self, event):
if event.delta() > 0:
self.effect.moveSpeed -= 0.20
else:
self.effect.moveSpeed += 0.20
if self.effect.moveSpeed < 0:
self.effect.moveSpeed = 0.0
def pause(self, on):
self.paused = on
self.tickTimer = QtCore.QTime.currentTime()
def tick(self):
if self.paused or not self.effect:
return
t = self.tickTimer.msecsTo(QtCore.QTime.currentTime())
self.tickTimer = QtCore.QTime.currentTime()
self.effect.tick(t / 10.0)
def paint(self, painter, opt, widget):
if self.tickOnPaint:
self.tick()