誰かがQtの簡単な例を提供または指摘できますか？別のボタンがクリックされた場合にボタンを下または上にスライドできます。たとえば、3つのボタンが垂直に配置されている単純なダイアログ。上のボタンをクリックすると、真ん中と下のボタンが20〜30ピクセル下にスライドし、上のボタンと他の2つのボタンの間にスペースが残ります。
また、中央のボタンをクリックすると、ボタンは初期位置に到達し、中央のボタンと一番下のボタンの間で同様のアニメーションが発生するはずです。つまり、下のボタンは下にスライドして、中央のボタンとの間にスペースを残しておく必要があります。
Win7のMinGWでqt4.8.4を使用しています。
Python で書かれたボタンのアニメーションの例を次に示します。
#!/usr/bin/env python
#-*- coding:utf-8 -*-
from PyQt4 import QtCore, QtGui
class StateSwitchEvent(QtCore.QEvent):
StateSwitchType = QtCore.QEvent.User + 256
def __init__(self, rand=0):
super(StateSwitchEvent, self).__init__(StateSwitchEvent.StateSwitchType)
self.m_rand = rand
def rand(self):
return self.m_rand
class StateSwitchTransition(QtCore.QAbstractTransition):
def __init__(self, rand):
super(StateSwitchTransition, self).__init__()
self.m_rand = rand
def eventTest(self, event):
return (event.type() == StateSwitchEvent.StateSwitchType and
event.rand() == self.m_rand)
def onTransition(self, event):
pass
class StateSwitcher(QtCore.QState):
def __init__(self, machine):
super(StateSwitcher, self).__init__(machine)
self.m_stateCount = 0
self.m_lastIndex = 1
def onEntry(self, event):
self.m_lastIndex = 1 if self.m_lastIndex >= self.m_stateCount else self.m_lastIndex + 1
self.machine().postEvent(StateSwitchEvent(self.m_lastIndex))
def addState(self, state, animation):
self.m_stateCount += 1
trans = StateSwitchTransition(self.m_stateCount)
trans.setTargetState(state)
trans.addAnimation(animation)
self.addTransition(trans)
def createGeometryState(w1, rect1, w2, rect2, w3, rect3, w4, rect4, w5, rect5, w6, rect6, parent):
result = QtCore.QState(parent)
result.assignProperty(w1, 'geometry', rect1)
result.assignProperty(w1, 'geometry', rect1)
result.assignProperty(w2, 'geometry', rect2)
result.assignProperty(w3, 'geometry', rect3)
result.assignProperty(w4, 'geometry', rect4)
result.assignProperty(w5, 'geometry', rect5)
result.assignProperty(w6, 'geometry', rect6)
return result
@QtCore.pyqtSlot()
def on_pushButtonStart_clicked():
lastItem = None
lowestY = None
for item in scene.items():
itemY = item.pos().y()
if lastItem == None or itemY <= lowestY:
lowestY = itemY
lastItem = item
for item in scene.items():
if item != lastItem:
lastItem.stackBefore(item)
timer.start()
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
button1 = QtGui.QPushButton()
button1.setFixedSize(QtCore.QSize(50, 50))
button1.setText("#1")
button2 = QtGui.QPushButton()
button2.setFixedSize(QtCore.QSize(50, 50))
button2.setText("#2")
button3 = QtGui.QPushButton()
button3.setFixedSize(QtCore.QSize(50, 50))
button3.setText("#3")
button4 = QtGui.QPushButton()
button4.setFixedSize(QtCore.QSize(50, 50))
button4.setText("#4")
button5 = QtGui.QPushButton()
button5.setFixedSize(QtCore.QSize(50, 50))
button5.setText("#5")
button6 = QtGui.QPushButton()
button6.setFixedSize(QtCore.QSize(50, 50))
button6.setText("#6")
scene = QtGui.QGraphicsScene(0, 0, 50, 300)
scene.addWidget(button1)
scene.addWidget(button2)
scene.addWidget(button3)
scene.addWidget(button4)
scene.addWidget(button5)
scene.addWidget(button6)
timer = QtCore.QTimer()
timer.setInterval(0)
timer.setSingleShot(True)
group = QtCore.QState()
state1 = createGeometryState(
button1, QtCore.QRect(0, 0, 50, 50),
button2, QtCore.QRect(0, 50, 50, 50),
button3, QtCore.QRect(0, 100, 50, 50),
button4, QtCore.QRect(0, 150, 50, 50),
button5, QtCore.QRect(0, 200, 50, 50),
button6, QtCore.QRect(0, 250, 50, 50),
group
)
state2 = createGeometryState(
button2, QtCore.QRect(0, 0, 50, 50),
button3, QtCore.QRect(0, 50, 50, 50),
button4, QtCore.QRect(0, 100, 50, 50),
button5, QtCore.QRect(0, 150, 50, 50),
button6, QtCore.QRect(0, 200, 50, 50),
button1, QtCore.QRect(0, 250, 50, 50),
group
)
state3 = createGeometryState(
button3, QtCore.QRect(0, 0, 50, 50),
button4, QtCore.QRect(0, 50, 50, 50),
button5, QtCore.QRect(0, 100, 50, 50),
button6, QtCore.QRect(0, 150, 50, 50),
button1, QtCore.QRect(0, 200, 50, 50),
button2, QtCore.QRect(0, 250, 50, 50),
group
)
state4 = createGeometryState(
button4, QtCore.QRect(0, 0, 50, 50),
button5, QtCore.QRect(0, 50, 50, 50),
button6, QtCore.QRect(0, 100, 50, 50),
button1, QtCore.QRect(0, 150, 50, 50),
button2, QtCore.QRect(0, 200, 50, 50),
button3, QtCore.QRect(0, 250, 50, 50),
group
)
state5 = createGeometryState(
button5, QtCore.QRect(0, 0, 50, 50),
button6, QtCore.QRect(0, 50, 50, 50),
button1, QtCore.QRect(0, 100, 50, 50),
button2, QtCore.QRect(0, 150, 50, 50),
button3, QtCore.QRect(0, 200, 50, 50),
button4, QtCore.QRect(0, 250, 50, 50),
group
)
state6 = createGeometryState(
button6, QtCore.QRect(0, 0, 50, 50),
button1, QtCore.QRect(0, 50, 50, 50),
button2, QtCore.QRect(0, 100, 50, 50),
button3, QtCore.QRect(0, 150, 50, 50),
button4, QtCore.QRect(0, 200, 50, 50),
button5, QtCore.QRect(0, 250, 50, 50),
group
)
animationGroup = QtCore.QParallelAnimationGroup()
anim = QtCore.QPropertyAnimation(button6, 'geometry')
anim.setDuration(1111)
anim.setEasingCurve(QtCore.QEasingCurve.OutElastic)
animationGroup.addAnimation(anim)
anim = QtCore.QPropertyAnimation(button5, 'geometry')
anim.setDuration(1111)
anim.setEasingCurve(QtCore.QEasingCurve.OutElastic)
animationGroup.addAnimation(anim)
anim = QtCore.QPropertyAnimation(button4, 'geometry')
anim.setDuration(1111)
anim.setEasingCurve(QtCore.QEasingCurve.OutElastic)
animationGroup.addAnimation(anim)
anim = QtCore.QPropertyAnimation(button3, 'geometry')
anim.setDuration(1111)
anim.setEasingCurve(QtCore.QEasingCurve.OutElastic)
animationGroup.addAnimation(anim)
anim = QtCore.QPropertyAnimation(button2, 'geometry')
anim.setDuration(1111)
anim.setEasingCurve(QtCore.QEasingCurve.OutElastic)
animationGroup.addAnimation(anim)
anim = QtCore.QPropertyAnimation(button1, 'geometry')
anim.setDuration(1111)
anim.setEasingCurve(QtCore.QEasingCurve.OutElastic)
animationGroup.addAnimation(anim)
machine = QtCore.QStateMachine()
stateSwitcher = StateSwitcher(machine)
stateSwitcher.addState(state1, animationGroup)
stateSwitcher.addState(state2, animationGroup)
stateSwitcher.addState(state3, animationGroup)
stateSwitcher.addState(state4, animationGroup)
stateSwitcher.addState(state5, animationGroup)
stateSwitcher.addState(state6, animationGroup)
group.addTransition(timer.timeout, stateSwitcher)
group.setInitialState(state1)
machine.addState(group)
machine.setInitialState(group)
machine.start()
view = QtGui.QGraphicsView(scene)
view.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
view.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
view.setFixedSize(50, 150)
window = QtGui.QWidget()
pushButtonStart = QtGui.QPushButton(window)
pushButtonStart.setText("Start")
pushButtonStart.clicked.connect(on_pushButtonStart_clicked)
layoutVertical = QtGui.QVBoxLayout(window)
layoutVertical.addWidget(view)
layoutVertical.addWidget(pushButtonStart)
window.show()
window.resize(333, 150)
sys.exit(app.exec_())