Qt第二十七章：QWidget、QMainWindow无边框自定义标题栏并自由移动、缩放、圆角
QWidget、QMainWindow自定义标题栏并自由移动缩放
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前提：UI必須采用自适应布局。
- 自定义组件【直接CV】custom_components.py
# 自定义组件 """ QCustomTitleBar:自定义标题 QWindowMoveResize：自定义缩放和拖动 """ import PySide6.QtGui from PySide6.QtGui import QPainter, QBrush from PySide6 import QtGui, QtWidgets, QtCore from PySide6.QtCore import Qt, QSize, QRect from PySide6.QtWidgets import QPushButton, QLabel, QWidget, QProgressBar, QHBoxLayout, QDialog # 自定义标题栏 class QCustomTitleBar: def __init__(self, window: QtWidgets): self.window = window # 默认标题栏高度 必须设 self.DEFAULT_TITILE_BAR_HEIGHT = 40 # 存储父类的双击事件 self.mouseDoubleClickEvent_parent = self.window.mouseDoubleClickEvent # 将本类的双击事件赋值给将父类的双击事件 self.window.mouseDoubleClickEvent = self.mouseDoubleClickEvent # 存储父类的窗口大小改变事件 self.resizeEvent_parent = self.window.resizeEvent # 将本类的窗口大小改变事件赋值给将父类的窗口大小改变事件 self.window.resizeEvent = self.resizeEvent # 设置ui文件里main_layout上边距，以免遮挡标题栏 self.window.setContentsMargins(0, self.DEFAULT_TITILE_BAR_HEIGHT, 0, 0) # 1.设置无边框 和 透明背景 无边框必须设置全，不然会导致点击任务栏不能最小化窗口 self.window.setWindowFlags( Qt.Window | Qt.FramelessWindowHint | Qt.WindowSystemMenuHint | Qt.WindowMinimizeButtonHint | Qt.WindowMaximizeButtonHint ) # self.window.setAttribute(Qt.WA_TranslucentBackground) # 2.添加自定义的标题栏到最顶部 self.title = QLabel("", self.window) # 3.设置标题栏样式 self.setStyle() # 4.添加按钮 # 添加关闭按钮 self.close_btn = QPushButton("", self.window) self.close_btn.setGeometry(self.window.width() - 33, 10, 20, 20) # 添加最大化按钮 self.max_btn = QPushButton("", self.window) self.max_btn.setGeometry(self.window.width() - 66, 10, 20, 20) # 添加最小化按钮 self.min_btn = QPushButton("", self.window) self.min_btn.setGeometry(self.window.width() - 99, 10, 20, 20) # 设置三个按钮的鼠标样式 self.close_btn.setCursor(Qt.PointingHandCursor) self.max_btn.setCursor(Qt.PointingHandCursor) self.min_btn.setCursor(Qt.PointingHandCursor) # 设置三个按钮的样式 self.close_btn.setStyleSheet( "QPushButton{border-image:url('./images/close.png');background:#ff625f;border-radius:10px;}" "QPushButton:hover{background:#eb4845;}" ) self.max_btn.setStyleSheet( "QPushButton{border-image:url('./images/max.png');background:#ffbe2f;border-radius:10px;}" "QPushButton:hover{background:#ecae27;}" ) self.min_btn.setStyleSheet( "QPushButton{border-image:url('./images/min.png');background:#29c941;border-radius:10px;}" "QPushButton:hover{background:#1ac033;}" ) # 5.添加工具栏按钮事件 # 关闭按钮点击绑定窗口关闭事件 self.close_btn.pressed.connect(self.window.close) # 最大化按钮绑定窗口最大化事件 self.max_btn.pressed.connect(self.setMaxEvent) # 最小化按钮绑定窗口最小化事件 self.min_btn.pressed.connect(self.window.showMinimized) # 6.记录全屏窗口的大小-ps非常有用 self.window_max_size = None # 7.设置标题栏鼠标跟踪 鼠标移入触发，不设置，移入标题栏不触发 self.title.setMouseTracking(True) def setMaxEvent(self, flag=False): """ @description 最大化按钮绑定窗口最大化事件和事件 拿出来是因为拖动标题栏时需要恢复界面大小 @param flag 是否是拖动标题栏 bool @return """ if flag: if self.window.isMaximized(): self.window.showNormal() self.max_btn.setStyleSheet( "QPushButton{border-image:url('./images/max.png');background:#ffbe2f;border-radius:10px;}" "QPushButton:hover{background:#ecae27;}" ) return self.window_max_size return None else: if self.window.isMaximized(): self.window.showNormal() self.max_btn.setStyleSheet( "QPushButton{border-image:url('./images/max.png');background:#ffbe2f;border-radius:10px;}" "QPushButton:hover{background:#ecae27;}" ) else: self.window.showMaximized() self.max_btn.setStyleSheet( "QPushButton{border-image:url('./images/restore.png');background:#ffbe2f;border-radius:10px;}" "QPushButton:hover{background:#ecae27;}" ) # 记录最大化窗口的大小 用于返回最大化时拖动窗口恢复前的大小 这个程序循环帧会取不到恢复前的宽度 self.window_max_size = QSize(self.window.width(), self.window.height()) def setStyle(self, style: str = ""): """ @description 设置自定义标题栏样式 @param @return """ # 想要边框 加上border:1px solid #cccccc; DEFAULT_STYLE = """ background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,stop:0 #fafafa,stop:1 #d1d1d1); color:#333333;padding:10px;border:1px solid #c6c6c6; border-top-left-radius:4px; border-top-right-radius:4px; """ self.title.setAlignment(Qt.AlignLeft | Qt.AlignVCenter) # 设置样式 self.title.setStyleSheet(DEFAULT_STYLE if not style else DEFAULT_STYLE + style) # 设置大小 self.title.setGeometry(0, 0, self.window.width(), self.DEFAULT_TITILE_BAR_HEIGHT) def mouseDoubleClickEvent(self, a0: QtGui.QMouseEvent) -> None: """ @description 鼠标双击事件 @param @return """ # 如果双击的是鼠标左键 且在标题栏范围内 则放大缩小窗口 if a0.button() == Qt.MouseButton.LeftButton and a0.position().y() < self.title.height(): self.setMaxEvent() return self.mouseDoubleClickEvent_parent(a0) def resizeEvent(self, a0: QtGui.QResizeEvent) -> None: """ @description 窗口缩放事件 @param @return """ # 最大化最小化的时候，需要去改变按钮组位置 self.close_btn.move(self.window.width() - 33, 10) self.max_btn.move(self.window.width() - 66, 10) self.min_btn.move(self.window.width() - 99, 10) self.title.resize(self.window.width(), self.DEFAULT_TITILE_BAR_HEIGHT) return self.resizeEvent_parent(a0) # 实现拖动和缩放Widget class QWindowMoveResizeWidget(QWidget): def __init__(self, parent=None): super(QWindowMoveResizeWidget, self).__init__(parent) # 1.设置无边框 和 透明背景 无边框必须设置全，不然会导致点击任务栏不能最小化窗口 self.setWindowFlags( Qt.Window | Qt.FramelessWindowHint | Qt.WindowSystemMenuHint | Qt.WindowMinimizeButtonHint | Qt.WindowMaximizeButtonHint ) # 设置窗体透明 self.setAttribute(Qt.WA_TranslucentBackground) # 默认标题栏高度 必须设 self.DEFAULT_TITILE_BAR_HEIGHT = 40 # 鼠标缩放窗口最小宽度，必须设 self.MIN_WINDOW_WIDTH = 10 self.MIN_WINDOW_HEIGHT = 10 # 鼠标拖动窗口的标识 self.m_flag = False # 初始化鼠标拖动标题栏标志 self.drag_flag = False # 记录按下时窗口坐标， 这个用于窗口移动 self.win_x = 0 self.win_y = 0 # 记录按下时鼠标坐标，这个用于计算鼠标移动的距离 self.mouse_x = 0 self.mouse_y = 0 # 记录鼠标移入的拖动区域，共8种区域 左上 左 左下 上 下 右上 右 右下 self.left_up = None self.left = None self.left_down = None self.up = None self.down = None self.right_up = None self.right = None self.right_down = None # 设置为True则mouseMoveEvent事件不需要按下也能触发,不然要按着鼠标左键或右键才能触发 self.setMouseTracking(True) # 设置子类的mousetrack # self.centralwidget.setMouseTracking(True) # 记录按下时窗口的大小，用于计算鼠标相对于窗口移动的距离，用于缩放 self.win_w = 0 self.win_h = 0 # 初始化鼠标缩放标志 self.move_left_up_flag = False self.move_left_flag = False self.move_left_down_flag = False self.move_up_flag = False self.move_down_flag = False self.move_right_up_flag = False self.move_right_flag = False self.move_right_down_flag = False # 设置边框圆角 def paintEvent(self, event: PySide6.QtGui.QPaintEvent) -> None: painter = QPainter(self) painter.setRenderHint(QPainter.RenderHint.Antialiasing) # 设置抗锯齿，不然边框会有明显锯齿 painter.setBrush(Qt.white) # 设置窗体颜色 painter.drawRoundedRect(self.rect(), 10, 10) super().paintEvent(event) def resizeEvent(self, a0: QtGui.QResizeEvent) -> None: """ @description 窗口缩放事件 @param @return """ # 最大化最小化的时候，需要去改变按钮组位置 # self.titleBar.close_btn.move(self.width() - 33, 10) # self.titleBar.max_btn.move(self.width() - 66, 10) # self.titleBar.min_btn.move(self.width() - 99, 10) # self.titleBar.title.resize(self.width(), DEFAULT_TITILE_BAR_HEIGHT) # 记录鼠标移入的拖动区域，共8种区域 self.left_up = QRect(0, 0, 10, 10) self.left = QRect(0, 10, 10, self.height() - 20) self.left_down = QRect(0, self.height() - 10, 10, 10) self.up = QRect(10, 0, self.width() - 20, 10) self.down = QRect(10, self.height() - 10, self.width() - 20, 10) self.right_up = QRect(self.width() - 10, 0, 10, 10) self.right = QRect(self.width() - 10, 10, 10, self.height() - 20) self.right_down = QRect(self.width() - 10, self.height() - 10, 10, 10) return super().resizeEvent(a0) def mousePressEvent(self, a0: QtGui.QMouseEvent) -> None: """ 拖动窗口 """ if a0.button() == QtCore.Qt.LeftButton and self.isMaximized() == False and self.cursor().shape() == QtGui.QCursor( QtCore.Qt.ArrowCursor).shape(): self.m_flag = True self.m_Position = a0.globalPosition().toPoint() - self.pos() # 获取鼠标相对窗口的位置 a0.accept() self.setCursor(QtGui.QCursor(QtCore.Qt.OpenHandCursor)) # 更改鼠标图标 else: """ @description 鼠标按下事件 @param @return """ # 记录按下时窗口坐标， 这个用于窗口移动 self.win_x = self.x() self.win_y = self.y() # 记录按下时鼠标坐标，这个用于计算鼠标移动的距离 self.mouse_x = a0.globalPosition().x() self.mouse_y = a0.globalPosition().y() # 记录按下时窗口的大小，用于计算鼠标相对于窗口移动的距离，用于缩放 self.win_w = self.width() self.win_h = self.height() if not self.isMaximized(): # 如果按下的是鼠标左键 if a0.button() == Qt.MouseButton.LeftButton and self.left_up.contains(a0.position().x(), a0.position().y()): self.move_left_up_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.left.contains(a0.position().x(), a0.position().y()): self.move_left_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.left_down.contains( a0.position().x(), a0.position().y() ): self.move_left_down_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.up.contains(a0.position().x(), a0.position().y()): self.move_up_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.down.contains(a0.position().x(), a0.position().y()): self.move_down_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.right_up.contains( a0.position().x(), a0.position().y() ): self.move_right_up_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.right.contains(a0.position().x(), a0.position().y()): self.move_right_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.right_down.contains( a0.position().x(), a0.position().y() ): self.move_right_down_flag = True return super().mousePressEvent(a0) def mouseMoveEvent(self, a0: QtGui.QMouseEvent) -> None: """ 拖动窗口 """ if QtCore.Qt.LeftButton and self.m_flag and self.cursor().shape() == QtGui.QCursor( QtCore.Qt.OpenHandCursor).shape(): self.move(a0.globalPosition().toPoint() - self.m_Position) # 更改窗口位置 a0.accept() else: """ @description 鼠标按下移动事件 @param @return """ # 获取移动后鼠标的位置 mouse_move_x = a0.globalPosition().x() mouse_move_y = a0.globalPosition().y() # 计算移动的距离 offset_x = mouse_move_x - self.mouse_x offset_y = mouse_move_y - self.mouse_y # 移动鼠标时设置鼠标样式 if not self.isMaximized(): # 不是拖动的时才可能是缩放状态 if not self.drag_flag: # 左上 if self.left_up.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeFDiagCursor) # 左 elif self.left.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeHorCursor) # 左下 elif self.left_down.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeBDiagCursor) # 上 elif self.up.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeVerCursor) # 下 elif self.down.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeVerCursor) # 右上 elif self.right_up.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeBDiagCursor) # 右 elif self.right.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeHorCursor) # 右下 elif self.right_down.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeFDiagCursor) else: self.setCursor(Qt.ArrowCursor) else: self.setCursor(Qt.ArrowCursor) else: self.setCursor(Qt.ArrowCursor) # 如果按下且在左上角范围内则缩放（其他代码参考左上） if self.move_left_up_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeFDiagCursor) resize_w = self.win_w - offset_x resize_h = self.win_h - offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # x y 都要鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.win_y + offset_y) # 缩放宽度等于最小宽度，高度鼠标跟随 if resize_w == self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.x(), self.win_y + offset_y) # 缩放高度等于最小高度，宽度鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h == self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.y()) # 如果按下且在左边范围内则缩放 elif self.move_left_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeHorCursor) resize_w = self.win_w - offset_x resize_h = self.win_h # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # 只要宽度鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH: self.move(self.win_x + offset_x, self.win_y) # 如果按下且在左下角范围内则缩放 elif self.move_left_down_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeBDiagCursor) resize_w = self.win_w - offset_x resize_h = self.win_h + offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # x y 都要鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.y()) # 缩放高度等于最小高度，宽度鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h == self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.y()) # 如果按下且在上边范围内则缩放 elif self.move_up_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeVerCursor) resize_w = self.win_w resize_h = self.win_h - offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # 只要高度鼠标跟随 if resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x, self.win_y + offset_y) # 如果按下且在下边范围内则缩放 elif self.move_down_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeVerCursor) resize_w = self.win_w resize_h = self.win_h + offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 如果按下且在右上角范围内则缩放 elif self.move_right_up_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeBDiagCursor) resize_w = self.win_w + offset_x resize_h = self.win_h - offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # x y 都要鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x, self.win_y + offset_y) # 缩放宽度等于最小宽度，高度鼠标跟随 if resize_w == self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.x(), self.win_y + offset_y) # 如果按下且在右边范围内则缩放 elif self.move_right_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeHorCursor) resize_w = self.win_w + offset_x resize_h = self.win_h # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 如果按下且在右下角范围内则缩放 elif self.move_right_down_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeFDiagCursor) resize_w = self.win_w + offset_x resize_h = self.win_h + offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 如果按下才能移动 elif self.drag_flag: # 设置窗口移动的距离 self.move(self.win_x + offset_x, self.win_y + offset_y) return super().mouseMoveEvent(a0) def mouseReleaseEvent(self, a0: QtGui.QMouseEvent) -> None: self.m_flag = False self.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor)) """ @description 鼠标按下松开事件 @param @return """ self.drag_flag = False self.move_left_up_flag = False self.move_left_flag = False self.move_left_down_flag = False self.move_up_flag = False self.move_down_flag = False self.move_right_up_flag = False self.move_right_flag = False self.move_right_down_flag = False self.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor)) return super().mouseReleaseEvent(a0) # 实现拖动和缩放Dialog class QWindowMoveResizeDialog(QDialog): def __init__(self, parent=None): super(QWindowMoveResizeDialog, self).__init__(parent) # 1.设置无边框 和 透明背景 无边框必须设置全，不然会导致点击任务栏不能最小化窗口 self.setWindowFlags( Qt.Window | Qt.FramelessWindowHint | Qt.WindowSystemMenuHint | Qt.WindowMinimizeButtonHint | Qt.WindowMaximizeButtonHint ) # 窗体透明 self.setAttribute(Qt.WA_TranslucentBackground) # 默认标题栏高度 必须设 self.DEFAULT_TITILE_BAR_HEIGHT = 40 # 鼠标缩放窗口最小宽度，必须设 self.MIN_WINDOW_WIDTH = 10 self.MIN_WINDOW_HEIGHT = 10 # 鼠标拖动窗口的标识 self.m_flag = False # 初始化鼠标拖动标题栏标志 self.drag_flag = False # 记录按下时窗口坐标， 这个用于窗口移动 self.win_x = 0 self.win_y = 0 # 记录按下时鼠标坐标，这个用于计算鼠标移动的距离 self.mouse_x = 0 self.mouse_y = 0 # 记录鼠标移入的拖动区域，共8种区域 左上 左 左下 上 下 右上 右 右下 self.left_up = None self.left = None self.left_down = None self.up = None self.down = None self.right_up = None self.right = None self.right_down = None # 设置为True则mouseMoveEvent事件不需要按下也能触发,不然要按着鼠标左键或右键才能触发 self.setMouseTracking(True) # 设置子类的mousetrack # self.centralwidget.setMouseTracking(True) # 记录按下时窗口的大小，用于计算鼠标相对于窗口移动的距离，用于缩放 self.win_w = 0 self.win_h = 0 # 初始化鼠标缩放标志 self.move_left_up_flag = False self.move_left_flag = False self.move_left_down_flag = False self.move_up_flag = False self.move_down_flag = False self.move_right_up_flag = False self.move_right_flag = False self.move_right_down_flag = False # 设置边框圆角 def paintEvent(self, event: PySide6.QtGui.QPaintEvent) -> None: painter = QPainter(self) painter.setRenderHint(QPainter.RenderHint.Antialiasing) # 设置抗锯齿，不然边框会有明显锯齿 painter.setBrush(Qt.white) # 设置窗体颜色 painter.drawRoundedRect(self.rect(), 10, 10) super().paintEvent(event) def resizeEvent(self, a0: QtGui.QResizeEvent) -> None: """ @description 窗口缩放事件 @param @return """ # 最大化最小化的时候，需要去改变按钮组位置 # self.titleBar.close_btn.move(self.width() - 33, 10) # self.titleBar.max_btn.move(self.width() - 66, 10) # self.titleBar.min_btn.move(self.width() - 99, 10) # self.titleBar.title.resize(self.width(), DEFAULT_TITILE_BAR_HEIGHT) # 记录鼠标移入的拖动区域，共8种区域 self.left_up = QRect(0, 0, 10, 10) self.left = QRect(0, 10, 10, self.height() - 20) self.left_down = QRect(0, self.height() - 10, 10, 10) self.up = QRect(10, 0, self.width() - 20, 10) self.down = QRect(10, self.height() - 10, self.width() - 20, 10) self.right_up = QRect(self.width() - 10, 0, 10, 10) self.right = QRect(self.width() - 10, 10, 10, self.height() - 20) self.right_down = QRect(self.width() - 10, self.height() - 10, 10, 10) return super().resizeEvent(a0) def mousePressEvent(self, a0: QtGui.QMouseEvent) -> None: """ 拖动窗口 """ if a0.button() == QtCore.Qt.LeftButton and self.isMaximized() == False and self.cursor().shape() == QtGui.QCursor( QtCore.Qt.ArrowCursor).shape(): self.m_flag = True self.m_Position = a0.globalPosition().toPoint() - self.pos() # 获取鼠标相对窗口的位置 a0.accept() self.setCursor(QtGui.QCursor(QtCore.Qt.OpenHandCursor)) # 更改鼠标图标 else: """ @description 鼠标按下事件 @param @return """ # 记录按下时窗口坐标， 这个用于窗口移动 self.win_x = self.x() self.win_y = self.y() # 记录按下时鼠标坐标，这个用于计算鼠标移动的距离 self.mouse_x = a0.globalPosition().x() self.mouse_y = a0.globalPosition().y() # 记录按下时窗口的大小，用于计算鼠标相对于窗口移动的距离，用于缩放 self.win_w = self.width() self.win_h = self.height() if not self.isMaximized(): # 如果按下的是鼠标左键 if a0.button() == Qt.MouseButton.LeftButton and self.left_up.contains(a0.position().x(), a0.position().y()): self.move_left_up_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.left.contains(a0.position().x(), a0.position().y()): self.move_left_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.left_down.contains( a0.position().x(), a0.position().y() ): self.move_left_down_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.up.contains(a0.position().x(), a0.position().y()): self.move_up_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.down.contains(a0.position().x(), a0.position().y()): self.move_down_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.right_up.contains( a0.position().x(), a0.position().y() ): self.move_right_up_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.right.contains(a0.position().x(), a0.position().y()): self.move_right_flag = True if a0.button() == Qt.MouseButton.LeftButton and self.right_down.contains( a0.position().x(), a0.position().y() ): self.move_right_down_flag = True return super().mousePressEvent(a0) def mouseMoveEvent(self, a0: QtGui.QMouseEvent) -> None: """ 拖动窗口 """ if QtCore.Qt.LeftButton and self.m_flag and self.cursor().shape() == QtGui.QCursor( QtCore.Qt.OpenHandCursor).shape(): self.move(a0.globalPosition().toPoint() - self.m_Position) # 更改窗口位置 a0.accept() else: """ @description 鼠标按下移动事件 @param @return """ # 获取移动后鼠标的位置 mouse_move_x = a0.globalPosition().x() mouse_move_y = a0.globalPosition().y() # 计算移动的距离 offset_x = mouse_move_x - self.mouse_x offset_y = mouse_move_y - self.mouse_y # 移动鼠标时设置鼠标样式 if not self.isMaximized(): # 不是拖动的时才可能是缩放状态 if not self.drag_flag: # 左上 if self.left_up.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeFDiagCursor) # 左 elif self.left.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeHorCursor) # 左下 elif self.left_down.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeBDiagCursor) # 上 elif self.up.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeVerCursor) # 下 elif self.down.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeVerCursor) # 右上 elif self.right_up.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeBDiagCursor) # 右 elif self.right.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeHorCursor) # 右下 elif self.right_down.contains(a0.position().x(), a0.position().y()): self.setCursor(Qt.SizeFDiagCursor) else: self.setCursor(Qt.ArrowCursor) else: self.setCursor(Qt.ArrowCursor) else: self.setCursor(Qt.ArrowCursor) # 如果按下且在左上角范围内则缩放（其他代码参考左上） if self.move_left_up_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeFDiagCursor) resize_w = self.win_w - offset_x resize_h = self.win_h - offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # x y 都要鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.win_y + offset_y) # 缩放宽度等于最小宽度，高度鼠标跟随 if resize_w == self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.x(), self.win_y + offset_y) # 缩放高度等于最小高度，宽度鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h == self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.y()) # 如果按下且在左边范围内则缩放 elif self.move_left_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeHorCursor) resize_w = self.win_w - offset_x resize_h = self.win_h # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # 只要宽度鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH: self.move(self.win_x + offset_x, self.win_y) # 如果按下且在左下角范围内则缩放 elif self.move_left_down_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeBDiagCursor) resize_w = self.win_w - offset_x resize_h = self.win_h + offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # x y 都要鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.y()) # 缩放高度等于最小高度，宽度鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h == self.MIN_WINDOW_HEIGHT: self.move(self.win_x + offset_x, self.y()) # 如果按下且在上边范围内则缩放 elif self.move_up_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeVerCursor) resize_w = self.win_w resize_h = self.win_h - offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # 只要高度鼠标跟随 if resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x, self.win_y + offset_y) # 如果按下且在下边范围内则缩放 elif self.move_down_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeVerCursor) resize_w = self.win_w resize_h = self.win_h + offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 如果按下且在右上角范围内则缩放 elif self.move_right_up_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeBDiagCursor) resize_w = self.win_w + offset_x resize_h = self.win_h - offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 设置窗口移动,需要鼠标跟随 # x y 都要鼠标跟随 if resize_w != self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.win_x, self.win_y + offset_y) # 缩放宽度等于最小宽度，高度鼠标跟随 if resize_w == self.MIN_WINDOW_WIDTH and resize_h != self.MIN_WINDOW_HEIGHT: self.move(self.x(), self.win_y + offset_y) # 如果按下且在右边范围内则缩放 elif self.move_right_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeHorCursor) resize_w = self.win_w + offset_x resize_h = self.win_h # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 如果按下且在右下角范围内则缩放 elif self.move_right_down_flag: # 拖动的时候也要设置一下形状 self.setCursor(Qt.SizeFDiagCursor) resize_w = self.win_w + offset_x resize_h = self.win_h + offset_y # 如果缩放后的尺寸小于最小尺寸则窗口不能缩放了 resize_w = self.MIN_WINDOW_WIDTH if resize_w < self.MIN_WINDOW_WIDTH else resize_w resize_h = self.MIN_WINDOW_HEIGHT if resize_h < self.MIN_WINDOW_HEIGHT else resize_h # 设置窗口缩放尺寸 self.resize(resize_w, resize_h) # 如果按下才能移动 elif self.drag_flag: # 设置窗口移动的距离 self.move(self.win_x + offset_x, self.win_y + offset_y) return super().mouseMoveEvent(a0) def mouseReleaseEvent(self, a0: QtGui.QMouseEvent) -> None: self.m_flag = False self.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor)) """ @description 鼠标按下松开事件 @param @return """ self.drag_flag = False self.move_left_up_flag = False self.move_left_flag = False self.move_left_down_flag = False self.move_up_flag = False self.move_down_flag = False self.move_right_up_flag = False self.move_right_flag = False self.move_right_down_flag = False self.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor)) return super().mouseReleaseEvent(a0) - 使用实例
①QWidget使用示例
UI文件（转成py文件）<?xml version="1.0" encoding="UTF-8"?> <ui version="4.0"> <class>Form</class> <widget class="QWidget" name="Form"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>400</width> <height>300</height> </rect> </property> <property name="windowTitle"> <string>Form</string> </property> <layout class="QHBoxLayout" name="horizontalLayout_2"> <item> <layout class="QVBoxLayout" name="verticalLayout"> <item> <layout class="QHBoxLayout" name="horizontalLayout"> <item> <widget class="QLineEdit" name="lineEdit"/> </item> <item> <widget class="QPushButton" name="pushButton"> <property name="text"> <string>PushButton</string> </property> </widget> </item> </layout> </item> <item> <widget class="QTextEdit" name="textEdit"/> </item> </layout> </item> </layout> </widget> <resources/> <connections/> </ui>from PySide6.QtWidgets import QApplication, QWidget from custom_components import QWindowMoveResizeWidget, QCustomTitleBar from ui_widget_test import Ui_Form class TestWindow(QWindowMoveResizeWidget, Ui_Form): def __init__(self, parent=None): super(TestWindow, self).__init__(parent) self.setupUi(self) # 自定义标题栏 QCustomTitleBar(self) if __name__ == "__main__": app = QApplication([]) window = TestWindow() window.show() app.exec()
②QMainWindow使用示例
UI文件（转成py文件）<?xml version="1.0" encoding="UTF-8"?> <ui version="4.0"> <class>MainWindow</class> <widget class="QMainWindow" name="MainWindow"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>641</width> <height>444</height> </rect> </property> <property name="windowTitle"> <string>MainWindow</string> </property> <widget class="QWidget" name="centralwidget"> <layout class="QHBoxLayout" name="horizontalLayout_2"> <item> <layout class="QVBoxLayout" name="verticalLayout"> <item> <layout class="QHBoxLayout" name="horizontalLayout"> <item> <widget class="QLineEdit" name="lineEdit"/> </item> <item> <widget class="QPushButton" name="pushButton"> <property name="text"> <string>PushButton</string> </property> </widget> </item> </layout> </item> <item> <widget class="QTextEdit" name="textEdit"/> </item> </layout> </item> </layout> </widget> <widget class="QMenuBar" name="menubar"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>641</width> <height>23</height> </rect> </property> <widget class="QMenu" name="menu"> <property name="title"> <string>菜单</string> </property> </widget> <addaction name="menu"/> </widget> <widget class="QStatusBar" name="statusbar"/> </widget> <resources/> <connections/> </ui>from PySide6 import QtCore, QtGui from PySide6.QtWidgets import QApplication, QMainWindow from custom_components import QCustomTitleBar from ui_main_window_test import Ui_MainWindow class TestWindow(QMainWindow, Ui_MainWindow): def __init__(self, parent=None): super(TestWindow, self).__init__(parent) self.setupUi(self) # 自定义标题栏 QCustomTitleBar(self) def mousePressEvent(self, event): if event.button() == QtCore.Qt.LeftButton and self.isMaximized() == False: self.m_flag = True self.m_Position = event.globalPosition().toPoint() - self.pos() # 获取鼠标相对窗口的位置 event.accept() self.setCursor(QtGui.QCursor(QtCore.Qt.OpenHandCursor)) # 更改鼠标图标 def mouseMoveEvent(self, mouse_event): if QtCore.Qt.LeftButton and self.m_flag: self.move(mouse_event.globalPosition().toPoint() - self.m_Position) # 更改窗口位置 mouse_event.accept() def mouseReleaseEvent(self, mouse_event): self.m_flag = False self.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor)) if __name__ == "__main__": app = QApplication([]) window = TestWindow() window.show() app.exec()
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