class SongInfoCardChute(QWidget):
"""
歌曲卡滑槽，有三个歌曲卡在循环滑动，当前歌曲卡切换时就切换歌曲
当前下标为0时，不能换到上一首， 当前下标为len-1时，不能换到下一首
"""
# 当前歌曲切换信号
currentIndexChanged = pyqtSignal([int], [str])
# 显示和隐藏播放栏信号
showPlayBarSignal = pyqtSignal()
hidePlayBarSignal = pyqtSignal()
# 切换到专辑界面
switchToAlbumInterfaceSig = pyqtSignal(str, str)
def __init__(self, parent=None, playlist=None):
super().__init__(parent)
self.shiftLeftTime = 0
self.shiftRightTime = 0
# 引用播放列表
self.playlist = playlist
self.currentIndex = 0
self.songInfoCard_list = []
# 设置发送信号标志位
self.needToEmitSignal = True
# 创建并行动画组
self.parallelAniGroup = QParallelAnimationGroup(self)
# 记录有待完成的动画
self.__unCompleteShift_list = []
# 初始化
self.__initWidget()
self.now = QDateTime.currentDateTime().toMSecsSinceEpoch()
def __initWidget(self):
""" 初始化小部件 """
self.resize(1300, 970)
self.setAttribute(Qt.WA_TranslucentBackground)
self.__createWidgets()
for songInfoCard in self.songInfoCard_list:
songInfoCard.resize(self.width(), 136)
# 将信号连接到槽函数
self.parallelAniGroup.finished.connect(self.__switchSongInfoCard)
for songInfoCard in self.songInfoCard_list:
songInfoCard.showPlayBarSignal.connect(self.__showPlayBar)
songInfoCard.hidePlayBarSignal.connect(self.__hidePlayBar)
songInfoCard.switchToAlbumInterfaceSig.connect(
self.switchToAlbumInterfaceSig)
def __createWidgets(self):
""" 创建小部件 """
# 创建三个歌曲信息卡，分别为last, current, next
self.songInfoCard_list = [SongInfoCard(self) for i in range(3)]
# 引用当前歌曲卡
self.lastSongInfoCard = self.songInfoCard_list[0]
self.curSongInfoCard = self.songInfoCard_list[1]
self.nextSongInfoCard = self.songInfoCard_list[2]
# 创建动画
self.songInfoCardAni_list = [
QPropertyAnimation(self.songInfoCard_list[i], b'geometry')
for i in range(3)
]
self.lastSongInfoCardAni = self.songInfoCardAni_list[0]
self.curSongInfoCardAni = self.songInfoCardAni_list[1]
self.nextSongInfoCardAni = self.songInfoCardAni_list[2]
# 将动画添加到动画组中
for ani in self.songInfoCardAni_list:
self.parallelAniGroup.addAnimation(ani)
# 先隐藏所有歌曲信息卡并设置位置
for i in range(3):
self.songInfoCard_list[i].move((i - 1) * self.width(),
self.height() - 204)
self.songInfoCard_list[i].hide()
# 初始化歌曲卡
if self.playlist:
self.curSongInfoCard.updateCard(self.playlist[0])
self.curSongInfoCard.show()
if len(self.playlist) >= 2:
self.nextSongInfoCard.show()
self.nextSongInfoCard.updateCard(self.playlist[1])
def mousePressEvent(self, e: QMouseEvent):
""" 按钮按下时记录鼠标位置 """
super().mousePressEvent(e)
self.mousePressPosX = e.pos().x()
self.lastMousePosX = e.pos().x()
# 记下按下的时间
self.mousePressTime = QDateTime.currentDateTime().toMSecsSinceEpoch()
def mouseMoveEvent(self, e: QMouseEvent):
""" 鼠标按下可拖动歌曲信息卡 """
for songInfoCard in self.songInfoCard_list:
songInfoCard.move(
songInfoCard.x() - (self.lastMousePosX - e.pos().x()),
songInfoCard.y())
# 更新鼠标位置
self.lastMousePosX = e.pos().x()
def mouseReleaseEvent(self, e: QMouseEvent):
""" 鼠标松开时重新设置歌曲卡位置 """
# 记下松开的时间
self.mouseReleaseTime = QDateTime.currentDateTime().toMSecsSinceEpoch()
mouseDeltaTime = self.mouseReleaseTime - self.mousePressTime
# self.mouseDeltaX > 0代表向右移动
self.mouseDeltaX = self.lastMousePosX - self.mousePressPosX
# 设置默认循环移位方式
self.loopMode = SongInfoCardLoopMode.NO_LOOP
if self.playlist:
if len(self.playlist) == 1:
# 只有1个歌曲卡时不管移动距离是多少都把该歌曲卡放回原位
self.__restoreCardPosition()
# 播放列表长度大于等于2
elif len(self.playlist) >= 2:
# 下标为0时右移或者下标为len-1左移都恢复原状
if (self.currentIndex == 0 and self.mouseDeltaX > 0) or (
self.currentIndex == len(self.playlist) - 1
and self.mouseDeltaX < 0):
self.__restoreCardPosition()
else:
if mouseDeltaTime < 360 and abs(self.mouseDeltaX) >= 120:
self.__cycleShift()
else:
if abs(self.mouseDeltaX) < int(self.width() / 2):
self.__restoreCardPosition()
else:
self.__cycleShift()
def __cycleLeftShift(self):
""" 循环左移 """
self.loopMode = SongInfoCardLoopMode.CYCLE_LEFT_SHIFT
self.__setAnimation(self.curSongInfoCardAni, self.curSongInfoCard,
-self.width())
self.__setAnimation(self.nextSongInfoCardAni, self.nextSongInfoCard, 0)
self.parallelAniGroup.removeAnimation(self.lastSongInfoCardAni)
self.parallelAniGroup.start()
# 发送更新背景信号
self.currentIndexChanged[str].emit(
self.nextSongInfoCard.albumCoverPath)
def __cycleRightShift(self):
""" 循环右移 """
self.loopMode = SongInfoCardLoopMode.CYCLE_RIGHT_SHIFT
self.__setAnimation(self.curSongInfoCardAni, self.curSongInfoCard,
self.width())
self.__setAnimation(self.lastSongInfoCardAni, self.lastSongInfoCard, 0)
self.parallelAniGroup.removeAnimation(self.nextSongInfoCardAni)
self.parallelAniGroup.start()
# 发送更新背景信号
self.currentIndexChanged[str].emit(
self.lastSongInfoCard.albumCoverPath)
def __switchSongInfoCard(self):
""" 交换对底层歌曲卡对象的引用 """
# 循环左移
if self.loopMode == SongInfoCardLoopMode.CYCLE_LEFT_SHIFT:
self.__resetRef(moveDirection=0)
# 更新动画组
self.parallelAniGroup.addAnimation(self.lastSongInfoCardAni)
# 移动底层对象
self.__moveObject(
self.songInfoCard_list[[2, 0, 1][self.shiftLeftTime]],
self.width())
# 更新下标
self.currentIndex += 1
if self.currentIndex != len(self.playlist) - 1:
# 更新歌曲信息卡
self.updateCards()
self.nextSongInfoCard.show()
else:
self.nextSongInfoCard.hide()
# 根据标志位决定是否发送下标更新信号
if self.needToEmitSignal:
self.currentIndexChanged[int].emit(self.currentIndex)
else:
self.needToEmitSignal = True
# 循环右移
elif self.loopMode == SongInfoCardLoopMode.CYCLE_RIGHT_SHIFT:
self.__resetRef(moveDirection=1)
# 更新动画组
self.parallelAniGroup.addAnimation(self.nextSongInfoCardAni)
# 移动底层对象
self.__moveObject(
self.songInfoCard_list[[0, 2, 1][self.shiftRightTime]],
-self.width())
# 更新下标
self.currentIndex -= 1
if self.currentIndex != 0:
self.updateCards()
self.lastSongInfoCard.show()
else:
self.lastSongInfoCard.hide()
# 根据标志位决定是否发送下标更新信号
if self.needToEmitSignal:
self.currentIndexChanged[int].emit(self.currentIndex)
else:
self.needToEmitSignal = True
# 完成未完成的移位动作
if self.__unCompleteShift_list:
index = self.__unCompleteShift_list.pop(0)
self.needToEmitSignal = False
self.__completeShift(index)
def __cycleShift(self):
""" 三卡片移动 """
# 播放播放列表的上一首(右移歌曲卡)
if self.mouseDeltaX > 0:
self.__cycleRightShift()
# 播放播放列表的下一首(左移歌曲卡)
elif self.mouseDeltaX < 0:
self.__cycleLeftShift()
def __setAnimation(self, animation: QPropertyAnimation, songInfoCard,
endX):
""" 设置动画 """
animation.setEasingCurve(QEasingCurve.OutQuart)
animation.setTargetObject(songInfoCard)
animation.setDuration(500)
# 设置起始值
animation.setStartValue(
QRect(songInfoCard.x(), songInfoCard.y(), songInfoCard.width(),
songInfoCard.height()))
# 设置结束值
animation.setEndValue(
QRect(endX, songInfoCard.y(), songInfoCard.width(),
songInfoCard.height()))
def __restoreCardPosition(self):
""" 恢复卡片位置 """
self.__setAnimation(self.curSongInfoCardAni, self.curSongInfoCard, 0)
self.__setAnimation(self.nextSongInfoCardAni, self.nextSongInfoCard,
self.width())
self.__setAnimation(self.lastSongInfoCardAni, self.lastSongInfoCard,
-self.width())
self.parallelAniGroup.start()
def updateCards(self):
""" 更新三个歌曲信息卡 """
if self.curSongInfoCard:
self.curSongInfoCard.updateCard(self.playlist[self.currentIndex])
if self.lastSongInfoCard and self.currentIndex >= 1:
self.lastSongInfoCard.updateCard(self.playlist[self.currentIndex -
1])
if self.nextSongInfoCard and self.currentIndex <= len(
self.playlist) - 2:
self.nextSongInfoCard.updateCard(self.playlist[self.currentIndex +
1])
def setCurrentIndex(self, index):
""" 更新当前下标并移动和更新歌曲信息卡 """
# 移位完成后不发送信号
self.needToEmitSignal = False
if self.playlist:
# 新的下标大于当前下标时，歌曲卡左移
if index != self.currentIndex:
if self.parallelAniGroup.state() != QAbstractAnimation.Running:
self.__completeShift(index)
else:
self.__unCompleteShift_list.append(index)
elif index == self.currentIndex:
self.updateCards()
self.needToEmitSignal = True
def setPlaylist(self, playlist, isResetIndex: bool = True):
""" 更新播放列表 """
self.playlist = playlist
self.currentIndex = 0 if isResetIndex else self.currentIndex
self.lastSongInfoCard.hide()
if playlist:
self.curSongInfoCard.updateCard(self.playlist[self.currentIndex])
self.currentIndexChanged[str].emit(
self.curSongInfoCard.albumCoverPath)
self.curSongInfoCard.show()
if len(self.playlist) == 1:
self.nextSongInfoCard.hide()
else:
self.nextSongInfoCard.show()
self.nextSongInfoCard.updateCard(
self.playlist[self.currentIndex + 1])
else:
self.curSongInfoCard.hide()
self.nextSongInfoCard.hide()
def resizeEvent(self, e):
""" 改变窗口大小时也改变歌曲卡的大小 """
super().resizeEvent(e)
for i in range(3):
self.songInfoCard_list[i].resize(self.width(), 136)
self.songInfoCard_list[i].adjustText()
self.curSongInfoCard.move(0, self.height() - 204)
self.lastSongInfoCard.move(-self.width(), self.height() - 204)
self.nextSongInfoCard.move(self.width(), self.height() - 204)
def __moveObject(self, songInfoCardObj, x):
""" 移动底层对象 """
songInfoCardObj.hide()
songInfoCardObj.move(x, self.height() - 204)
songInfoCardObj.show()
def __resetRef(self, moveDirection=0):
""" 设置变量对底层对象的引用，moveDirection = 0 代表左移，moveDirection = 1 代表右移 """
# 循环左移
if moveDirection == 0:
self.shiftLeftTime = (self.shiftLeftTime + 1) % 3
self.shiftRightTime = (self.shiftRightTime - 1) % 3
if self.shiftLeftTime == 0:
self.__resetRefIndex(0, 1, 2)
elif self.shiftLeftTime == 1:
self.__resetRefIndex(1, 2, 0)
elif self.shiftLeftTime == 2:
self.__resetRefIndex(2, 0, 1)
# 循环右移
elif moveDirection == 1:
self.shiftLeftTime = (self.shiftLeftTime - 1) % 3
self.shiftRightTime = (self.shiftRightTime + 1) % 3
if self.shiftRightTime == 0:
self.__resetRefIndex(0, 1, 2)
elif self.shiftRightTime == 1:
self.__resetRefIndex(2, 0, 1)
elif self.shiftRightTime == 2:
self.__resetRefIndex(1, 2, 0)
def __resetRefIndex(self, lastIndex, curIndex, nextIndex):
""" refsetFunc的子函数 """
self.curSongInfoCard = self.songInfoCard_list[curIndex]
self.lastSongInfoCard = self.songInfoCard_list[lastIndex]
self.nextSongInfoCard = self.songInfoCard_list[nextIndex]
def __showPlayBar(self):
""" 显示播放栏 """
self.showPlayBarSignal.emit()
for songInfoCard in self.songInfoCard_list:
songInfoCard.isPlayBarVisible = True
def __hidePlayBar(self):
""" 隐藏播放栏 """
self.hidePlayBarSignal.emit()
for songInfoCard in self.songInfoCard_list:
songInfoCard.isPlayBarVisible = False
def stopSongInfoCardTimer(self):
""" 停止歌曲信息卡的计时器 """
for songInfoCard in self.songInfoCard_list:
songInfoCard.timer.stop()
def startSongInfoCardTimer(self):
""" 打开歌曲信息卡的计时器 """
self.curSongInfoCard.timer.start()
def __completeShift(self, index):
""" 完成移位，只在调用setCurrentIndex时调用 """
if index > self.currentIndex:
self.currentIndex = index - 1
self.nextSongInfoCard.updateCard(self.playlist[index])
self.__cycleLeftShift()
elif index < self.currentIndex:
self.currentIndex = index + 1
self.lastSongInfoCard.updateCard(self.playlist[index])
self.__cycleRightShift()
class SmallestPlayModeInterface(QWidget):
""" 最小播放模式界面 """
CYCLE_LEFT_SHIFT = 0
CYCLE_RIGHT_SHIFT = 1
def __init__(self, playlist: list, parent=None):
super().__init__(parent)
self.playlist = playlist
self.currentIndex = 0
self.shiftLeftTime = 0
self.shiftRightTime = 0
self.songInfoCard_list = []
self.__unCompleteShift_list = []
# 创建按钮
self.playButton = PlayButton(
[
r"app\resource\images\smallest_play_mode\播放_45_45.png",
r"app\resource\images\smallest_play_mode\暂停_45_45.png",
],
self,
)
self.lastSongButton = SmallestPlayModeButton(
r"app\resource\images\smallest_play_mode\上一首_45_45.png", self)
self.nextSongButton = SmallestPlayModeButton(
r"app\resource\images\smallest_play_mode\下一首_45_45.png", self)
self.exitSmallestModeButton = BasicCircleButton(
r"app\resource\images\playing_interface\最小模式播放_47_47.png", self)
self.progressBar = QSlider(Qt.Horizontal, self)
self.aniGroup = QParallelAnimationGroup(self)
# 创建歌曲信息卡
self.__createSongInfoCards()
# 初始化
self.__initWidget()
def __initWidget(self):
""" 初始化界面 """
self.resize(350, 350)
self.setMinimumSize(206, 197)
self.setAttribute(Qt.WA_TranslucentBackground)
self.setObjectName("smallestModeInterface")
self.progressBar.setObjectName("smallestModeSlider")
self.progressBar.installEventFilter(self)
self.aniGroup.finished.connect(self.__switchSongInfoCard)
self.__setQss()
def __createSongInfoCards(self):
""" 创建歌曲信息卡 """
# 创建三个歌曲信息卡，分别为last, current, next
self.songInfoCard_list = [SongInfoCard(parent=self) for i in range(3)]
# 引用当前歌曲卡
self.lastSongInfoCard = self.songInfoCard_list[0] # type:SongInfoCard
self.curSongInfoCard = self.songInfoCard_list[1] # type:SongInfoCard
self.nextSongInfoCard = self.songInfoCard_list[2] # type:SongInfoCard
# 创建动画
self.songInfoCardAni_list = [
QPropertyAnimation(self.songInfoCard_list[i], b"geometry")
for i in range(3)
]
self.lastSongInfoCardAni = self.songInfoCardAni_list[0]
self.curSongInfoCardAni = self.songInfoCardAni_list[1]
self.nextSongInfoCardAni = self.songInfoCardAni_list[2]
# 将动画添加到动画组中
for ani in self.songInfoCardAni_list:
self.aniGroup.addAnimation(ani)
# 初始化歌曲卡
for i in range(3):
self.songInfoCard_list[i].move((i - 1) * self.width(),
self.height() - 106)
if self.playlist:
self.curSongInfoCard.updateCard(self.playlist[0])
if len(self.playlist) >= 2:
self.nextSongInfoCard.updateCard(self.playlist[1])
def resizeEvent(self, e):
""" 改变窗口大小时调整按钮位置和标签宽度 """
self.progressBar.resize(self.width(), 5)
self.progressBar.move(0, self.height() - 5)
self.exitSmallestModeButton.move(
self.width() - 7 - self.exitSmallestModeButton.width(),
self.height() - 7 - self.exitSmallestModeButton.height(),
)
self.playButton.move(
int(self.width() / 2 - self.playButton.width() / 2),
int(self.height() / 2 - self.playButton.height() / 2),
)
self.lastSongButton.move(self.playButton.x() - 75, self.playButton.y())
self.nextSongButton.move(self.playButton.x() + 75, self.playButton.y())
# 所有歌曲信息卡设置位置
for i in range(3):
self.songInfoCard_list[i].resize(
self.width(), self.songInfoCard_list[i].height())
self.curSongInfoCard.move(0, self.height() - 106)
self.lastSongInfoCard.move(-self.width(), self.height() - 106)
self.nextSongInfoCard.move(self.width(), self.height() - 106)
# 高度太小时隐藏歌曲信息卡
if self.height() <= 320:
if self.curSongInfoCard.isVisible():
self.curSongInfoCard.aniHide()
self.lastSongInfoCard.hide()
self.nextSongInfoCard.hide()
elif self.height() > 320:
if not self.curSongInfoCard.isVisible():
self.curSongInfoCard.aniShow()
else:
self.curSongInfoCard.show()
self.lastSongInfoCard.show()
self.nextSongInfoCard.show()
def __setQss(self):
""" 设置层叠样式 """
with open(r"app\resource\css\playInterface.qss",
encoding="utf-8") as f:
self.setStyleSheet(f.read())
def eventFilter(self, obj, e: QEvent):
""" 过滤事件 """
if obj == self.progressBar:
if e.type() in [
QEvent.MouseButtonPress, QEvent.MouseButtonDblClick
]:
return True
return super().eventFilter(obj, e)
def __cycleLeftShift(self):
""" 循环左移 """
self.loopMode = self.CYCLE_LEFT_SHIFT
self.__setAnimation(self.curSongInfoCardAni, self.curSongInfoCard,
-self.width())
self.__setAnimation(self.nextSongInfoCardAni, self.nextSongInfoCard, 0)
self.aniGroup.removeAnimation(self.lastSongInfoCardAni)
self.aniGroup.start()
def __cycleRightShift(self):
""" 循环右移 """
self.loopMode = self.CYCLE_RIGHT_SHIFT
self.__setAnimation(self.curSongInfoCardAni, self.curSongInfoCard,
self.width())
self.__setAnimation(self.lastSongInfoCardAni, self.lastSongInfoCard, 0)
self.aniGroup.removeAnimation(self.nextSongInfoCardAni)
self.aniGroup.start()
def __setAnimation(self, animation: QPropertyAnimation, songInfoCard,
endX):
""" 设置动画 """
animation.setEasingCurve(QEasingCurve.OutQuart)
animation.setTargetObject(songInfoCard)
animation.setDuration(500)
# 设置起始值
animation.setStartValue(
QRect(
songInfoCard.x(),
songInfoCard.y(),
songInfoCard.width(),
songInfoCard.height(),
))
# 设置结束值
animation.setEndValue(
QRect(endX, songInfoCard.y(), songInfoCard.width(),
songInfoCard.height()))
def __switchSongInfoCard(self):
""" 交换对底层歌曲卡对象的引用 """
# 循环左移
if self.loopMode == self.CYCLE_LEFT_SHIFT:
self.__resetRef(moveDirection=0)
# 更新动画组
self.aniGroup.addAnimation(self.lastSongInfoCardAni)
# 移动底层对象
self.songInfoCard_list[[2, 0, 1][self.shiftLeftTime]].move(
self.width(),
self.height() - 106)
# 更新下标
self.currentIndex += 1
if self.currentIndex != len(self.playlist) - 1:
# 更新歌曲信息卡
self.updateCards()
# 循环右移
elif self.loopMode == self.CYCLE_RIGHT_SHIFT:
self.__resetRef(moveDirection=1)
# 更新动画组
self.aniGroup.addAnimation(self.nextSongInfoCardAni)
# 移动底层对象
self.songInfoCard_list[[0, 2, 1][self.shiftRightTime]].move(
-self.width(),
self.height() - 106)
# 更新下标
self.currentIndex -= 1
if self.currentIndex != 0:
self.updateCards()
# 完成未完成的移位动作
if self.__unCompleteShift_list:
index = self.__unCompleteShift_list.pop(0)
self.__completeShift(index)
def updateCards(self):
""" 更新三个歌曲信息卡 """
self.curSongInfoCard.updateCard(self.playlist[self.currentIndex])
if self.currentIndex >= 1:
self.lastSongInfoCard.updateCard(self.playlist[self.currentIndex -
1])
if self.currentIndex <= len(self.playlist) - 2:
self.nextSongInfoCard.updateCard(self.playlist[self.currentIndex +
1])
def __resetRef(self, moveDirection=0):
""" 设置变量对底层对象的引用，moveDirection = 0 代表左移，moveDirection = 1 代表右移 """
# 循环左移
if moveDirection == 0:
self.shiftLeftTime = (self.shiftLeftTime + 1) % 3
self.shiftRightTime = (self.shiftRightTime - 1) % 3
if self.shiftLeftTime == 0:
self.__resetRefIndex(0, 1, 2)
elif self.shiftLeftTime == 1:
self.__resetRefIndex(1, 2, 0)
elif self.shiftLeftTime == 2:
self.__resetRefIndex(2, 0, 1)
# 循环右移
elif moveDirection == 1:
self.shiftLeftTime = (self.shiftLeftTime - 1) % 3
self.shiftRightTime = (self.shiftRightTime + 1) % 3
if self.shiftRightTime == 0:
self.__resetRefIndex(0, 1, 2)
elif self.shiftRightTime == 1:
self.__resetRefIndex(2, 0, 1)
elif self.shiftRightTime == 2:
self.__resetRefIndex(1, 2, 0)
def __resetRefIndex(self, lastIndex, curIndex, nextIndex):
""" refsetFunc的子函数 """
self.curSongInfoCard = self.songInfoCard_list[curIndex]
self.lastSongInfoCard = self.songInfoCard_list[lastIndex]
self.nextSongInfoCard = self.songInfoCard_list[nextIndex]
def setCurrentIndex(self, index):
""" 更新当前下标并移动和更新歌曲信息卡 """
if self.playlist:
# 新的下标大于当前下标时，歌曲卡左移
if index != self.currentIndex:
if self.aniGroup.state() != QAbstractAnimation.Running:
self.__completeShift(index)
else:
self.__unCompleteShift_list.append(index)
elif index == self.currentIndex:
self.updateCards()
self.needToEmitSignal = True
def setPlaylist(self, playlist, isResetIndex: bool = True):
""" 更新播放列表 """
self.playlist = playlist
self.currentIndex = 0 if isResetIndex else self.currentIndex
if playlist:
self.curSongInfoCard.updateCard(self.playlist[0])
self.curSongInfoCard.show()
if len(self.playlist) > 1:
self.nextSongInfoCard.updateCard(self.playlist[1])
else:
self.curSongInfoCard.hide()
def __completeShift(self, index):
""" 完成移位，只在调用setCurrentIndex时调用 """
if index > self.currentIndex:
self.currentIndex = index - 1
self.nextSongInfoCard.updateCard(self.playlist[index])
self.__cycleLeftShift()
elif index < self.currentIndex:
self.currentIndex = index + 1
self.lastSongInfoCard.updateCard(self.playlist[index])
self.__cycleRightShift()
