PyQT5之菜单栏和工具栏
1.PyQT5图像2.PyQT5水平垂直布局3.PyQT5之图片左右翻页4.PyQT5之QPushButton和布局5.PyQT5之label6.PyQT5之选择图片7.PyQT5之自定义信号8.PyQT5之窗口
9.PyQT5之菜单栏和工具栏
10.PyQT5之QComboBox11.PyQT5之Checkbox12.PyQT5之QRadioButton13.PyQT5之单行文本输入到多行显示窗14.PyQT5之网格布局多图片显示15.PyQtGraph绘制折线图16.PyQT5之PyQtGraph实时数据显示17.PyQT5之窗口最大化最小化18.PyQT5之QSS基础/子控件选择器19.PyQT5样式设置20.PyQT5绘图21.PyQT5窗口样式设置22.PyQT5之设置窗口控件风格23.PyQT5之多窗口交互24.PyQT5之override覆盖槽函数25.PyQT5之为槽函数传递参数26.PyQT5信号与槽的连接27.PyQT5信号刷新时间28.PyQT5之信号关闭窗口29.信号与槽N对N30.PyQT5之多个信号31.PyQT5之QTreeView32.PyQT5内嵌html33.PyQT5加载本地web页面34.PyQT5之QWebEngineView35.PyQT5之QThread36.PyQT5之QTimer37.PyQT5之QStackedWidget38.PyQT5之QTreeWidget-QTabWidget39.PyQT5之QTableWidget40.PyQT5之QListWidget41.PyQT5之QListView42.PyQT5之二维表QTableView43.PyQT5打印机44.PyQT5之QPainter45.PyQT5之QFontDialog46.PyQT5之QInputDialog47.PyQT5之QMessageBox48.PyQT5之QDialog49.PyQT5之多页面切换50.PyQT5之计数器控件QSpinBox51.PyQT5之滑块控件QSlider52.PyQtGraph绘图参考53.PyQtGraph之多图绘制54.PyQtGraph之柱状图55.PyQt5选择文件控件QFileDialog
"""
菜单栏
"""
from PyQt5 import QtWidgets
from PyQt5 import QtCore, QtGui
import sys
import cv2
class ButtonPanel(QtWidgets.QWidget):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
select_btn = QtWidgets.QPushButton("图像选择")
self.path_label = QtWidgets.QLabel()
self.path_label.setText("当前未显示图像路径")
self.path_label.setAlignment(QtCore.Qt.AlignCenter) # label上居中显示
self.path_label.setMaximumHeight(50) # label最大高度设置
self.path_label.setStyleSheet("background-color:pink;color:green") # 背景颜色设置
font = QtGui.QFont()
font.setBold(True)
font.setPointSizeF(10)
self.path_label.setFont(font)
self.image_label = QtWidgets.QLabel()
# 方法二:使用cv2显示
src = cv2.imread("./image/img1.png") # BGR
image = cv2.cvtColor(src, cv2.COLOR_BGR2RGB) # 将BGR转为RGB
h, w, c = image.shape
img = QtGui.QImage(image.data, w, h, 3 * w, QtGui.QImage.Format_RGB888)
pixmap = QtGui.QPixmap(img)
pix = pixmap.scaled(QtCore.QSize(640, 640), QtCore.Qt.KeepAspectRatio) # 自动保持比例放缩方式
self.image_label.setPixmap(pix) # 设置图像显示
self.image_label.setAlignment(QtCore.Qt.AlignCenter) # label上的内容居中显示
self.image_label.setStyleSheet("background-color:blue;color:green") # 背景颜色设置
btn_panel = QtWidgets.QGroupBox("图像文件选择")
hboxlayout = QtWidgets.QHBoxLayout()
hboxlayout.addWidget(self.path_label)
hboxlayout.addWidget(select_btn)
hboxlayout.addStretch(1)
btn_panel.setLayout(hboxlayout)
vboxlayout = QtWidgets.QVBoxLayout()
vboxlayout.addWidget(self.image_label)
vboxlayout.addWidget(btn_panel)
vboxlayout.addStretch(1)
self.setLayout(vboxlayout)
# 绑定点击
select_btn.clicked.connect(self.on_select_image)
def on_select_image(self):
fileinfo = QtWidgets.QFileDialog.getOpenFileName(self, "打开图像文件", ".", "图像文件(*.jpg *.png)")
fileName = fileinfo[0]
if fileName != "":
self.path_label.setText(fileName)
pixmap = QtGui.QPixmap(fileName)
pix = pixmap.scaled(QtCore.QSize(640, 640), QtCore.Qt.KeepAspectRatio) # 自动保持比例放缩方式
self.image_label.setPixmap(pix) # 设置图像显示
def on_select_image():
fileinfo = QtWidgets.QFileDialog.getOpenFileName(main_win, "打开图像文件", ".", "图像文件(*.jpg *.png)")
fileName = fileinfo[0]
if fileName != "":
myPanel.path_label.setText(fileName)
pixmap = QtGui.QPixmap(fileName)
pix = pixmap.scaled(QtCore.QSize(640, 640), QtCore.Qt.KeepAspectRatio) # 自动保持比例放缩方式
myPanel.image_label.setPixmap(pix) # 设置图像显示
def on_tool_image():
fileinfo = QtWidgets.QFileDialog.getOpenFileName(main_win, "打开图像文件", ".", "图像文件(*.jpg *.png)")
fileName = fileinfo[0]
if fileName != "":
myPanel.path_label.setText(fileName)
pixmap = QtGui.QPixmap(fileName)
pix = pixmap.scaled(QtCore.QSize(640, 640), QtCore.Qt.KeepAspectRatio) # 自动保持比例放缩方式
myPanel.image_label.setPixmap(pix) # 设置图像显示
def on_print():
# fileinfo = QtWidgets.QFileDialog.getOpenFileName(main_win, "打开图像文件", ".", "图像文件(*.jpg *.png)")
# fileName = fileinfo[0]
# if fileName != "":
text = "你点我干嘛?"
# myPanel.path_label.setText(text)
# myPanel.path_label.setText(fileName)
# pixmap = QtGui.QPixmap(fileName)
# pix = pixmap.scaled(QtCore.QSize(640, 640), QtCore.Qt.KeepAspectRatio) # 自动保持比例放缩方式
# myPanel.image_label.setPixmap(pix) # 设置图像显示
myPanel.image_label.setText(text) # 设置图像显示
myPanel.image_label.setAlignment(QtCore.Qt.AlignCenter) # label上的内容居中显示
myPanel.image_label.setStyleSheet("background-color:white;color:blue") # 背景颜色设置
myPanel.image_label.setMaximumHeight(500) # label最大高度设置
myPanel.image_label.setMaximumWidth(500) # label最大高度设置
box_action.setChecked(False)
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
main_win = QtWidgets.QMainWindow()
main_win.setWindowTitle("图像浏览显示")
# 添加菜单栏
menu = main_win.menuBar()
file_menu = menu.addMenu("&文件")
image_action = QtWidgets.QAction("图像选择", main_win)
image_action.setStatusTip("This is your image...")
image_action.triggered.connect(on_select_image)
file_menu.addAction(image_action)
# 添加工具栏
toolbar = QtWidgets.QToolBar("MyToolBar")
main_win.addToolBar(toolbar)
box_action = QtWidgets.QAction(QtGui.QIcon("./image/icon/特性.png"), "")
box_action.setCheckable(True)
box_action.triggered.connect(on_print)
tool_action = QtWidgets.QAction("圆形", main_win)
tool_action.setStatusTip("This is your button")
tool_action.triggered.connect(on_tool_image)
tool_action.setCheckable(True)
toolbar.addAction(tool_action)
toolbar.addAction(box_action)
myPanel = ButtonPanel()
main_win.setCentralWidget(myPanel)
main_win.setMinimumSize(1080, 720)
main_win.show()
app.exec_()
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