import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication, QLabel, QMainWindow, QFileDialog
class Ui_MainWindow2(object):
def setupUi(self,MainWindow2):
MainWindow2.setObjectName("MainWindow2")
MainWindow2.resize(1000, 650)
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 230))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 230))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 230))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 230))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush)
MainWindow2.setPalette(palette)
self.centralwidget = QtWidgets.QWidget(MainWindow2)
self.centralwidget.setObjectName("centralwidget")
self.graphicsView = QtWidgets.QGraphicsView(self.centralwidget)
self.graphicsView.setGeometry(QtCore.QRect(50, 60, 551, 381))
self.graphicsView.setObjectName("graphicsView")
self.horizontalLayoutWidget = QtWidgets.QWidget(self.centralwidget)
self.horizontalLayoutWidget.setGeometry(QtCore.QRect(50, 560, 401, 31))
self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.spinBox_left = QtWidgets.QSpinBox(self.horizontalLayoutWidget)
self.spinBox_left.setObjectName("spinBox_left")
self.horizontalLayout.addWidget(self.spinBox_left)
self.spinBox_top = QtWidgets.QSpinBox(self.horizontalLayoutWidget)
self.spinBox_top.setObjectName("spinBox_top")
self.horizontalLayout.addWidget(self.spinBox_top)
self.spinBox_right = QtWidgets.QSpinBox(self.horizontalLayoutWidget)
self.spinBox_right.setObjectName("spinBox_right")
self.horizontalLayout.addWidget(self.spinBox_right)
self.spinBox_bottom = QtWidgets.QSpinBox(self.horizontalLayoutWidget)
self.spinBox_bottom.setObjectName("spinBox_bottom")
self.horizontalLayout.addWidget(self.spinBox_bottom)
self.horizontalLayoutWidget_2 = QtWidgets.QWidget(self.centralwidget)
self.horizontalLayoutWidget_2.setGeometry(QtCore.QRect(50, 530, 391, 31))
self.horizontalLayoutWidget_2.setObjectName("horizontalLayoutWidget_2")
self.horizontalLayout_4 = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget_2)
self.horizontalLayout_4.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.label_left = QtWidgets.QLabel(self.horizontalLayoutWidget_2)
palette = QtGui.QPalette()
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.BrightText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 127, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.PlaceholderText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.BrightText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 127, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.PlaceholderText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 255))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.BrightText, brush)
brush = QtGui.QBrush(QtGui.QColor(255, 255, 127, 128))
brush.setStyle(QtCore.Qt.SolidPattern)
palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.PlaceholderText, brush)
self.label_left.setPalette(palette)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(9)
self.label_left.setFont(font)
self.label_left.setObjectName("label_left")
self.horizontalLayout_4.addWidget(self.label_left)
self.label_top = QtWidgets.QLabel(self.horizontalLayoutWidget_2)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(9)
self.label_top.setFont(font)
self.label_top.setObjectName("label_top")
self.horizontalLayout_4.addWidget(self.label_top)
self.label_right = QtWidgets.QLabel(self.horizontalLayoutWidget_2)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(9)
self.label_right.setFont(font)
self.label_right.setObjectName("label_right")
self.horizontalLayout_4.addWidget(self.label_right)
self.label_bottom = QtWidgets.QLabel(self.horizontalLayoutWidget_2)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(9)
self.label_bottom.setFont(font)
self.label_bottom.setObjectName("label_bottom")
self.horizontalLayout_4.addWidget(self.label_bottom)
self.label_kadr = QtWidgets.QLabel(self.centralwidget)
self.label_kadr.setGeometry(QtCore.QRect(50, 470, 131, 31))
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_kadr.setFont(font)
self.label_kadr.setObjectName("label_kadr")
self.label_poyasneniye = QtWidgets.QLabel(self.centralwidget)
self.label_poyasneniye.setGeometry(QtCore.QRect(50, 500, 401, 20))
self.label_poyasneniye.setObjectName("label_poyasneniye")
self.pushButton_save = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_save.setGeometry(QtCore.QRect(680, 520, 261, 51))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(10)
self.pushButton_save.setFont(font)
self.pushButton_save.setObjectName("pushButton_save")
self.pushButton_download = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_download.setGeometry(QtCore.QRect(280, 13, 261, 38))
font = QtGui.QFont()
font.setFamily("Calibri Light")
font.setPointSize(10)
self.pushButton_download.setFont(font)
self.pushButton_download.setObjectName("pushButton_download")
self.label_povorot = QtWidgets.QLabel(self.centralwidget)
self.label_povorot.setGeometry(QtCore.QRect(470, 470, 131, 31))
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_povorot.setFont(font)
self.label_povorot.setObjectName("label_povorot")
self.verticalLayoutWidget = QtWidgets.QWidget(self.centralwidget)
self.verticalLayoutWidget.setGeometry(QtCore.QRect(470, 510, 131, 80))
self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.pushButton_right = QtWidgets.QPushButton(self.verticalLayoutWidget)
self.pushButton_right.setObjectName("pushButton_right")
self.verticalLayout.addWidget(self.pushButton_right)
self.pushButton_left = QtWidgets.QPushButton(self.verticalLayoutWidget)
self.pushButton_left.setObjectName("pushButton_left")
self.verticalLayout.addWidget(self.pushButton_left)
self.label_filter = QtWidgets.QLabel(self.centralwidget)
self.label_filter.setGeometry(QtCore.QRect(620, 60, 131, 31))
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_filter.setFont(font)
self.label_filter.setObjectName("label_filter")
self.label_zagruzka = QtWidgets.QLabel(self.centralwidget)
self.label_zagruzka.setGeometry(QtCore.QRect(50, 20, 241, 31))
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_zagruzka.setFont(font)
self.label_zagruzka.setObjectName("label_zagruzka")
self.formLayoutWidget = QtWidgets.QWidget(self.centralwidget)
self.formLayoutWidget.setGeometry(QtCore.QRect(629, 100, 311, 341))
self.formLayoutWidget.setObjectName("formLayoutWidget")
self.formLayout = QtWidgets.QFormLayout(self.formLayoutWidget)
self.formLayout.setContentsMargins(0, 0, 0, 0)
self.formLayout.setObjectName("formLayout")
self.horizontalSlider_yarkost = QtWidgets.QSlider(self.formLayoutWidget)
self.horizontalSlider_yarkost.setOrientation(QtCore.Qt.Horizontal)
self.horizontalSlider_yarkost.setObjectName("horizontalSlider_yarkost")
self.formLayout.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.horizontalSlider_yarkost)
self.label_yarkost = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(10)
self.label_yarkost.setFont(font)
self.label_yarkost.setObjectName("label_yarkost")
self.formLayout.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label_yarkost)
self.label_sepiya = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(10)
self.label_sepiya.setFont(font)
self.label_sepiya.setObjectName("label_sepiya")
self.formLayout.setWidget(4, QtWidgets.QFormLayout.LabelRole, self.label_sepiya)
self.label_otserogo = QtWidgets.QLabel(self.formLayoutWidget)
font = QtGui.QFont()
font.setFamily("Carlito")
font.setPointSize(10)
self.label_otserogo.setFont(font)
self.label_otserogo.setObjectName("label_otserogo")
self.formLayout.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.label_otserogo)
self.horizontalSlider_otserogo = QtWidgets.QSlider(self.formLayoutWidget)
self.horizontalSlider_otserogo.setOrientation(QtCore.Qt.Horizontal)
self.horizontalSlider_otserogo.setObjectName("horizontalSlider_otserogo")
self.formLayout.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.horizontalSlider_otserogo)
self.horizontalSlider_sepiya = QtWidgets.QSlider(self.formLayoutWidget)
self.horizontalSlider_sepiya.setOrientation(QtCore.Qt.Horizontal)
self.horizontalSlider_sepiya.setObjectName("horizontalSlider_sepiya")
self.formLayout.setWidget(4, QtWidgets.QFormLayout.FieldRole, self.horizontalSlider_sepiya)
MainWindow2.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow2)
self.menubar.setGeometry(QtCore.QRect(0, 0, 1000, 26))
self.menubar.setObjectName("menubar")
MainWindow2.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow2)
self.statusbar.setObjectName("statusbar")
MainWindow2.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow2)
QtCore.QMetaObject.connectSlotsByName(MainWindow2)
self.pushButton_download.clicked.connect(self.start_OpenFile)
# self.scene = QGraphicsScene()
# self.graphicsView.setScene(self.scene)
# self._pixmapHandle = None
def retranslateUi(self, MainWindow2):
_translate = QtCore.QCoreApplication.translate
MainWindow2.setWindowTitle(_translate("MainWindow2", "MainWindow"))
self.label_left.setText(_translate("MainWindow2", "Левая сторона"))
self.label_top.setText(
_translate("MainWindow2", "<html><head/><body><p align=\"center\"> Верх</p></body></html>"))
self.label_right.setText(_translate("MainWindow2", " Правая сторона"))
self.label_bottom.setText(
_translate("MainWindow2", "<html><head/><body><p align=\"center\">Низ</p></body></html>"))
self.label_kadr.setText(_translate("MainWindow2", "<html><head/><body><p>Кадрирование</p></body></html>"))
self.label_poyasneniye.setText(_translate("MainWindow2",
"<html><head/><body><p><span style=\" font-size:7pt;\">(увеличивайте или уменьшайте количество пикселей для обрезки)</span></p></body></html>"))
self.pushButton_save.setText(_translate("MainWindow2", "Сохранить картинку"))
self.pushButton_download.setText(_translate("MainWindow2", "Загрузить картинку"))
self.label_povorot.setText(_translate("MainWindow2", "<html><head/><body><p>Поворот</p></body></html>"))
self.pushButton_right.setText(_translate("MainWindow2", "Вправо"))
self.pushButton_left.setText(_translate("MainWindow2", "Влево"))
self.label_filter.setText(_translate("MainWindow2", "<html><head/><body><p>Фильтры</p></body></html>"))
self.label_zagruzka.setText(
_translate("MainWindow2", "<html><head/><body><p>Загрузите изображение</p></body></html>"))
self.label_yarkost.setText(_translate("MainWindow2", "Яркость"))
self.label_sepiya.setText(_translate("MainWindow2", "Сепия"))
self.label_otserogo.setText(_translate("MainWindow2", "Оттенки серого"))
#def initUI(self):
# fname = QFileDialog.getOpenFileName(
# self, 'Выбрать картинку', '',
# 'Картинка (*.jpg);;Картинка (*.jpeg)')[0]
#self.pixmap = QPixmap(fname)
##self.scene = QGraphicsScene()
#self.graphicsView.setScene(self.scene)
## self.pushButton_download.clicked.connect(self.im_down)
## self.image = QLabel(self)
##self.image.move(80, 60)
##self.image.resize(250, 250)
def im_down(self):
self.image.setPixmap(self.pixmap)
def hasImage(self):
""" Returns whether or not the scene contains an image pixmap.
"""
return self._pixmapHandle is not None
def clearImage(self):
""" Removes the current image pixmap from the scene if it exists.
"""
if self.hasImage():
self.scene.removeItem(self._pixmapHandle)
self._pixmapHandle = None
def pixmap(self):
""" Returns the scene's current image pixmap as a QPixmap, or else None if no image exists.
:rtype: QPixmap | None
"""
if self.hasImage():
return self._pixmapHandle.pixmap()
return None
def image(self):
""" Returns the scene's current image pixmap as a QImage, or else None if no image exists.
:rtype: QImage | None
"""
if self.hasImage():
return self._pixmapHandle.pixmap().toImage()
return None
def setImage(self, image):
""" Set the scene's current image pixmap to the input QImage or QPixmap.
Raises a RuntimeError if the input image has type other than QImage or QPixmap.
:type image: QImage | QPixmap
"""
if type(image) is QPixmap:
pixmap = image
elif type(image) is QImage:
pixmap = QPixmap.fromImage(image)
else:
raise RuntimeError("ImageViewer.setImage: Argument must be a QImage or QPixmap.")
if self.hasImage():
self._pixmapHandle.setPixmap(pixmap)
else:
self._pixmapHandle = self.scene.addPixmap(pixmap)
self.setSceneRect(QRectF(pixmap.rect())) # Set scene size to image size.
self.updateViewer()
def loadImageFromFile2(self):
print ("i am here")
# fname = QFileDialog.getOpenFileName(
# self, 'Выбрать картинку', '',
# 'Картинка (*.jpg);;Картинка (*.jpeg)')[0]
# print(fileName)
def loadImageFromFile(self, fileName=""):
""" Load an image from file.
Without any arguments, loadImageFromFile() will popup a file dialog to choose the image file.
With a fileName argument, loadImageFromFile(fileName) will attempt to load the specified image file directly.
"""
if len(fileName) == 0:
if QT_VERSION_STR[0] == '4':
fileName = QFileDialog.getOpenFileName(self, "Open image file.")
elif QT_VERSION_STR[0] == '5':
fileName, dummy = QFileDialog.getOpenFileName(self, "Open image file.")
if len(fileName) and os.path.isfile(fileName):
image = QImage(fileName)
self.setImage(image)
def updateViewer(self):
""" Show current zoom (if showing entire image, apply current aspect ratio mode).
"""
if not self.hasImage():
return
if len(self.zoomStack) and self.sceneRect().contains(self.zoomStack[-1]):
self.fitInView(self.zoomStack[-1], Qt.IgnoreAspectRatio) # Show zoomed rect (ignore aspect ratio).
else:
self.zoomStack = [] # Clear the zoom stack (in case we got here because of an invalid zoom).
self.fitInView(self.sceneRect(), self.aspectRatioMode) # Show entire image (use current aspect ratio mode).
def start_OpenFile(self):
print("i am here2")
fname = QFileDialog.getOpenFileName(self, 'Выбрать картинку', '',
'Картинка (*.jpg);;Картинка (*.jpg);;Все файлы (*)')[0]
print(fname)
class mywindow2(QtWidgets.QMainWindow):
def __init__(self):
super(mywindow2, self).__init__()
self.ui = Ui_MainWindow2()
self.ui.setupUi(self)
app = QtWidgets.QApplication([])
application = mywindow2()
application.show()
sys.exit(app.exec())
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When ever you want to perform a set of operations based on a condition IF-ELSE is used.
if conditional-expression
#code
elif conditional-expression
#code
else:
#code
Indentation is very important in Python, make sure the indentation is followed correctly
For loop is used to iterate over arrays(list, tuple, set, dictionary) or strings.
mylist=("Iphone","Pixel","Samsung")
for i in mylist:
print(i)
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while condition
#code
There are four types of collections in Python.
List is a collection which is ordered and can be changed. Lists are specified in square brackets.
mylist=["iPhone","Pixel","Samsung"]
print(mylist)
Tuple is a collection which is ordered and can not be changed. Tuples are specified in round brackets.
myTuple=("iPhone","Pixel","Samsung")
print(myTuple)
Below throws an error if you assign another value to tuple again.
myTuple=("iPhone","Pixel","Samsung")
print(myTuple)
myTuple[1]="onePlus"
print(myTuple)
Set is a collection which is unordered and unindexed. Sets are specified in curly brackets.
myset = {"iPhone","Pixel","Samsung"}
print(myset)
Dictionary is a collection of key value pairs which is unordered, can be changed, and indexed. They are written in curly brackets with key - value pairs.
mydict = {
"brand" :"iPhone",
"model": "iPhone 11"
}
print(mydict)
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| Name | Description |
|---|---|
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| Pandas | Pandas is the most efficient Python library for data manipulation and analysis |
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