class SongInfoCard(QWidget):
""" 歌曲信息卡 """
showPlayBarSignal = pyqtSignal()
hidePlayBarSignal = pyqtSignal()
switchToAlbumInterfaceSig = pyqtSignal(str, str)
def __init__(self, parent=None, songInfo: dict = None):
super().__init__(parent)
self.setSongInfo(songInfo)
self.timer = QTimer(self)
self.albumCoverLabel = QLabel(self)
self.songNameLabel = ClickableLabel(parent=self)
self.songerAlbumLabel = ClickableLabel(parent=self)
# 初始化标志位
self.isPlayBarVisible = False
# 初始化
self.__initWidget()
def __initWidget(self):
""" 初始化小部件 """
self.resize(1307, 136)
self.setFixedHeight(136)
self.setMinimumWidth(400)
self.albumCoverLabel.move(30, 0)
self.albumCoverLabel.setFixedSize(136, 136)
self.setAttribute(Qt.WA_TranslucentBackground)
self.updateCard(self.songInfo)
# 初始化定时器
self.timer.setInterval(3000)
self.timer.timeout.connect(self.timerSlot)
# 分配ID
self.songNameLabel.setObjectName("songNameLabel")
self.songerAlbumLabel.setObjectName("songerAlbumLabel")
# 设置属性
self.songNameLabel.setProperty("state", "normal")
self.songerAlbumLabel.setProperty("state", "normal")
# self.__initLayout()
self.__setQss()
# 安装事件过滤器
self.songNameLabel.installEventFilter(self)
self.songerAlbumLabel.installEventFilter(self)
# 信号连接到槽
def slot():
return self.switchToAlbumInterfaceSig.emit(self.album, self.songerName)
self.songNameLabel.clicked.connect(slot)
self.songerAlbumLabel.clicked.connect(slot)
def __initLayout(self):
""" 初始化布局 """
self.songNameLabel.move(186, 30)
self.songerAlbumLabel.move(186, 82)
def setSongInfo(self, songInfo: dict):
""" 设置歌曲信息 """
self.songInfo = songInfo
if not self.songInfo:
self.songInfo = {}
self.album = self.songInfo.get("album", "未知专辑")
self.songName = self.songInfo.get("songName", "未知歌名")
self.songerName = self.songInfo.get("songer", "未知歌手")
self.albumCoverPath = getCoverPath(self.songInfo.get("modifiedAlbum"))
def updateCard(self, songInfo: dict):
""" 更新歌曲信息卡 """
self.setSongInfo(songInfo)
self.songNameLabel.setText(self.songName)
self.songerAlbumLabel.setText(self.songerName + " • " + self.album)
self.albumCoverLabel.setPixmap(
QPixmap(self.albumCoverPath).scaled(
136, 136, Qt.KeepAspectRatio, Qt.SmoothTransformation
)
)
# 调整文本
self.adjustText()
def __setQss(self):
""" 设置层叠样式 """
with open(
r"app\resource\css\playInterfaceSongInfoCard.qss", encoding="utf-8"
) as f:
self.setStyleSheet(f.read())
def eventFilter(self, obj, e: QEvent):
""" 重写事件过滤器 """
if obj in [self.songNameLabel, self.songerAlbumLabel]:
if e.type() == QEvent.MouseButtonPress:
self.songNameLabel.setProperty("state", "pressed")
self.songerAlbumLabel.setProperty("state", "pressed")
self.setStyle(QApplication.style())
elif e.type() == QEvent.Enter:
self.songNameLabel.setProperty("state", "hover")
self.songerAlbumLabel.setProperty("state", "hover")
self.setStyle(QApplication.style())
elif e.type() in [QEvent.MouseButtonRelease, QEvent.Leave]:
self.songNameLabel.setProperty("state", "normal")
self.songerAlbumLabel.setProperty("state", "normal")
self.setStyle(QApplication.style())
return super().eventFilter(obj, e)
def enterEvent(self, e):
""" 鼠标进入时打开计时器并显示播放栏 """
if not self.isPlayBarVisible:
if not self.timer.isActive():
# 显示播放栏
self.timer.start()
self.showPlayBarSignal.emit()
else:
# 重置定时器
self.timer.stop()
self.timer.start()
def timerSlot(self):
""" 定时器溢出时隐藏播放栏 """
self.timer.stop()
self.hidePlayBarSignal.emit()
def adjustText(self):
""" 根据文本长度决定是否插入换行符 """
maxWidth = self.width() - 232
# 设置专辑名歌手名标签的长度
fontMetrics = QFontMetrics(QFont("Microsoft YaHei", 13))
songerAlbumWidth = sum(
[fontMetrics.width(i) for i in self.songerAlbumLabel.text()]
)
self.songerAlbumLabel.setFixedWidth(min(maxWidth, songerAlbumWidth))
# 调整专辑名标签
fontMetrics = QFontMetrics(QFont("Microsoft YaHei", 21, 75))
newSongName_list = list(self.songName) # type:list
totalWidth = 0
isWrap = False
for i in range(len(self.songName)):
totalWidth += fontMetrics.width(self.songName[i])
if totalWidth > maxWidth:
newSongName_list.insert(i, "\n")
isWrap = True
break
if isWrap:
self.songNameLabel.setText("".join(newSongName_list))
self.songNameLabel.move(186, 6)
self.songerAlbumLabel.move(186, 101)
self.songNameLabel.setFixedSize(maxWidth, 83)
else:
self.songNameLabel.move(186, 26)
self.songerAlbumLabel.move(186, 82)
self.songNameLabel.setFixedSize(totalWidth, 46)
self.songNameLabel.setText(self.songName)
class SongCard(QWidget):
""" 歌曲卡 """
clicked = pyqtSignal(int)
switchToAlbumInterfaceSig = pyqtSignal(str, str) # 发送专辑名和歌手名
def __init__(self, songInfo: dict, parent=None):
super().__init__(parent)
self.__getInfo(songInfo)
self.__resizeTime = 0
# 记录播放状态
self.isPlaying = False
self.__currentState = "leave-notPlay"
# 记录下每个小部件所占的最大宽度
self.__maxSongNameCardWidth = 420
self.__maxSongerLabelWidth = 284
self.__maxAlbumLabelWidth = 284
# 记录songCard对应的item的下标
self.itemIndex = None
# 创建小部件
self.songNameCard = SongNameCard(songInfo["songName"], self)
self.songerLabel = ClickableLabel(songInfo["songer"], self, False)
self.albumLabel = ClickableLabel(songInfo["album"], self, False)
self.yearLabel = QLabel(songInfo["year"], self)
self.durationLabel = QLabel(songInfo["duration"], self)
self.buttonGroup = self.songNameCard.buttonGroup
self.playButton = self.songNameCard.playButton
self.addToButton = self.songNameCard.addToButton
self.__label_list = [
self.songerLabel,
self.albumLabel,
self.yearLabel,
self.durationLabel,
]
# 创建动画
self.__createAnimations()
# 初始化
self.__initWidget()
def __initWidget(self):
""" 初始化小部件 """
self.__getLabelWidth()
self.resize(1234, 60)
self.resize(1234, 60)
self.setFixedHeight(60)
self.albumLabel.setCursor(Qt.PointingHandCursor)
self.songerLabel.setCursor(Qt.PointingHandCursor)
self.setAttribute(Qt.WA_StyledBackground)
# 分配ID和属性
self.setObjectName("songCard")
self.albumLabel.setObjectName("clickableLabel")
self.songerLabel.setObjectName("clickableLabel")
self.setDynamicProperty(self.__currentState)
# self.__setQss()
# 安装事件过滤器
self.installEventFilter(self)
# 信号连接到槽
self.playButton.clicked.connect(lambda: self.clicked.emit(self.itemIndex))
self.albumLabel.clicked.connect(
lambda: self.switchToAlbumInterfaceSig.emit(
self.albumLabel.text(), self.songerLabel.text()
)
)
def __setQss(self):
""" 设置层叠样式 """
with open(r"app\resource\css\playInterfaceSongCard.qss", encoding="utf-8") as f:
self.setStyleSheet(f.read())
def __getLabelWidth(self):
""" 计算标签的长度 """
fontMetrics = QFontMetrics(QFont("Microsoft YaHei", 9))
self.songerWidth = fontMetrics.width(self.songInfo["songer"])
self.albumWidth = fontMetrics.width(self.songInfo["album"])
def setDynamicProperty(self, state: str):
""" 设置动态属性，总共4状态，分别为enter-notPlay、enter-play、leave-notPlay、leave-play """
self.yearLabel.setProperty("state", state)
self.albumLabel.setProperty("state", state)
self.songerLabel.setProperty("state", state)
self.durationLabel.setProperty("state", state)
if state.endswith("play"):
self.isPlaying = True
self.songNameCard.setPlay(True)
if state.startswith("enter"):
self.setProperty("state", "hover")
self.songNameCard.buttonGroup.setProperty("state", "hover")
else:
self.setProperty("state", "leave")
self.songNameCard.buttonGroup.setProperty("state", "leave")
self.setStyle(QApplication.style())
def resizeEvent(self, e):
""" 改变窗口大小时移动标签 """
# super().resizeEvent(e)
self.__resizeTime += 1
if self.__resizeTime == 1:
self.originalWidth = self.width()
width = self.width() - 246
# 计算各个标签所占的最大宽度
self.__maxSongNameCardWidth = int(42 / 99 * width)
self.__maxSongerLabelWidth = int((width - self.__maxSongNameCardWidth) / 2)
self.__maxAlbumLabelWidth = self.__maxSongerLabelWidth
# 如果实际尺寸大于可分配尺寸，就调整大小
self.__adjustWidgetWidth()
elif self.__resizeTime > 1:
deltaWidth = self.width() - self.originalWidth
self.originalWidth = self.width()
# 分配多出来的宽度
threeEqualWidth = int(deltaWidth / 3)
self.__maxSongNameCardWidth += threeEqualWidth
self.__maxSongerLabelWidth += threeEqualWidth
self.__maxAlbumLabelWidth += deltaWidth - 2 * threeEqualWidth
self.__adjustWidgetWidth()
# 移动标签
self.durationLabel.move(self.width() - 45, 20)
self.yearLabel.move(self.width() - 190, 20)
self.songerLabel.move(self.__maxSongNameCardWidth + 26, 20)
self.albumLabel.move(self.songerLabel.x() + self.__maxSongerLabelWidth + 15, 20)
# 更新动画目标移动位置
self.__getAniTargetX_list()
def eventFilter(self, obj, e: QEvent):
""" 更新样式 """
if obj == self:
if e.type() in [QEvent.Enter, QEvent.MouseButtonRelease]:
self.songNameCard.setWidgetHidden(False)
state = "enter-play" if self.isPlaying else "enter-notPlay"
self.setDynamicProperty(state)
elif e.type() == QEvent.Leave:
self.songNameCard.setWidgetHidden(True)
state = "leave-play" if self.isPlaying else "leave-notPlay"
self.setDynamicProperty(state)
elif e.type() == QEvent.MouseButtonPress:
self.setProperty("state", "pressed")
self.songNameCard.buttonGroup.setProperty("state", "pressed")
self.setStyle(QApplication.style())
return super().eventFilter(obj, e)
def mousePressEvent(self, e):
""" 鼠标按下时移动小部件 """
super().mousePressEvent(e)
# 移动小部件
if self.aniGroup.state() == QAbstractAnimation.Stopped:
for deltaX, widget in zip(self.__deltaX_list, self.__aniWidget_list):
widget.move(widget.x() + deltaX, widget.y())
else:
self.aniGroup.stop()
for targetX, widget in zip(self.__aniTargetX_list, self.__aniWidget_list):
widget.move(targetX, widget.y())
def mouseReleaseEvent(self, e: QMouseEvent):
""" 鼠标松开时开始动画 """
for ani, widget, deltaX in zip(
self.__ani_list, self.__aniWidget_list, self.__deltaX_list
):
ani.setStartValue(
QRect(widget.x(), widget.y(), widget.width(), widget.height())
)
ani.setEndValue(
QRect(widget.x() - deltaX, widget.y(), widget.width(), widget.height())
)
self.aniGroup.start()
# 左键点击时才更新样式
if e.button() == Qt.LeftButton:
if not self.isPlaying:
self.aniGroup.finished.connect(self.aniFinishedSlot)
def aniFinishedSlot(self):
""" 动画完成时更新样式 """
# 发送点击信号
self.setDynamicProperty("enter-play")
self.songNameCard.checkBox.hide()
self.clicked.emit(self.itemIndex)
# 动画完成后需要断开连接，为下一次样式更新做准备
self.aniGroup.disconnect()
def __adjustWidgetWidth(self):
""" 调整小部件宽度 """
# if self.songNameCard.songNameWidth + 41 > self.__maxSongNameCardWidth:
self.songNameCard.resize(self.__maxSongNameCardWidth, 60)
if self.songerWidth > self.__maxSongerLabelWidth:
self.songerLabel.setFixedWidth(self.__maxSongerLabelWidth)
else:
self.songerLabel.setFixedWidth(self.songerWidth)
if self.albumWidth > self.__maxAlbumLabelWidth:
self.albumLabel.setFixedWidth(self.__maxAlbumLabelWidth)
else:
self.albumLabel.setFixedWidth(self.albumWidth)
def __createAnimations(self):
""" 创建动画 """
self.aniGroup = QParallelAnimationGroup(self)
self.__deltaX_list = [13, 5, -3, -11, -13]
self.__aniWidget_list = [
self.songNameCard,
self.songerLabel,
self.albumLabel,
self.yearLabel,
self.durationLabel,
]
self.__ani_list = [
QPropertyAnimation(widget, b"geometry") for widget in self.__aniWidget_list
]
for ani in self.__ani_list:
ani.setDuration(400)
ani.setEasingCurve(QEasingCurve.OutQuad)
self.aniGroup.addAnimation(ani)
# 记录下移动目标位置
self.__getAniTargetX_list()
def __getAniTargetX_list(self):
""" 计算动画的初始值 """
self.__aniTargetX_list = []
for deltaX, widget in zip(self.__deltaX_list, self.__aniWidget_list):
self.__aniTargetX_list.append(deltaX + widget.x())
def setPlay(self, isPlay: bool):
""" 设置歌曲卡的播放状态 """
self.isPlaying = isPlay
self.songNameCard.setPlay(isPlay)
if isPlay:
self.setDynamicProperty("enter-play")
else:
self.setDynamicProperty("leave-notPlay")
def updateSongCard(self, songInfo: dict):
""" 更新歌曲卡信息 """
self.resize(self.size())
self.__getInfo(songInfo)
self.songNameCard.setSongName(songInfo["songName"])
self.songerLabel.setText(songInfo["songer"])
self.albumLabel.setText(songInfo["album"])
self.yearLabel.setText(songInfo["year"])
self.durationLabel.setText(songInfo["duration"])
# 调整宽度
self.__getLabelWidth()
songerWidth = (
self.songerWidth
if self.songerWidth <= self.__maxSongerLabelWidth
else self.__maxSongerLabelWidth
)
albumWidth = (
self.albumWidth
if self.albumWidth <= self.__maxAlbumLabelWidth
else self.__maxAlbumLabelWidth
)
self.songerLabel.setFixedWidth(songerWidth)
self.albumLabel.setFixedWidth(albumWidth)
def __getInfo(self, songInfo: dict):
""" 从歌曲信息中分离信息 """
self.songInfo = songInfo
self.year = songInfo["year"] # type:str
self.songer = songInfo["songer"] # type:str
self.album = songInfo["album"] # type:str
self.duration = songInfo["duration"] # type:str
self.songName = songInfo["songName"] # type:str
