Adding images to a QTableWidget in PyQt
Question:
I’m very new to Python and even newer to PyQt. I’ve managed to create a table, but want to add images in certain cells. I’ve read that I need to subclass the QTableWidget class, or possibly the QTableWidgetItem class and re-implement the QPaintEvent. If anyone has an example of what goes into re-implementing the QPaintEvent I would really appreciate it.
Thanks,
Stephen
Answers:
from PyQt4 import QtGui
import sys
imagePath = "enter the path to your image here"
class ImgWidget1(QtGui.QLabel):
def __init__(self, parent=None):
super(ImgWidget1, self).__init__(parent)
pic = QtGui.QPixmap(imagePath)
self.setPixmap(pic)
class ImgWidget2(QtGui.QWidget):
def __init__(self, parent=None):
super(ImgWidget2, self).__init__(parent)
self.pic = QtGui.QPixmap(imagePath)
def paintEvent(self, event):
painter = QtGui.QPainter(self)
painter.drawPixmap(0, 0, self.pic)
class Widget(QtGui.QWidget):
def __init__(self):
super(Widget, self).__init__()
tableWidget = QtGui.QTableWidget(10, 2, self)
tableWidget.setCellWidget(0, 1, ImgWidget1(self))
tableWidget.setCellWidget(1, 1, ImgWidget2(self))
if __name__ == "__main__":
app = QtGui.QApplication([])
wnd = Widget()
wnd.show()
sys.exit(app.exec_())
Two ways of doing it, since you asked for the painEvent.
Credits: http://www.mail-archive.com/[email protected]/msg01259.html
Hope this helps.
Edit: Added requested solution using a QTableWidget subclass.
from PyQt4 import QtGui
import sys
class ImageWidget(QtGui.QWidget):
def __init__(self, imagePath, parent):
super(ImageWidget, self).__init__(parent)
self.picture = QtGui.QPixmap(imagePath)
def paintEvent(self, event):
painter = QtGui.QPainter(self)
painter.drawPixmap(0, 0, self.picture)
class TableWidget(QtGui.QTableWidget):
def setImage(self, row, col, imagePath):
image = ImageWidget(imagePath, self)
self.setCellWidget(row, col, image)
if __name__ == "__main__":
app = QtGui.QApplication([])
tableWidget = TableWidget(10, 2)
tableWidget.setImage(0, 1, "<your image path here>")
tableWidget.show()
sys.exit(app.exec_())
I find this solution to be kind to my beginners mind:
from PyQt5 import QtCore, QtGui, QtWidgets
import sys
class KindForMind(object):
def THINK(self, PLEASE):
self.table = QtWidgets.QTableWidget()
pic = QtGui.QPixmap("your_image.jpg")
self.label = QtWidgets.QLabel(PLEASE)
self.label.setPixmap(pic)
self.table.setCellWidget(0,0, self.label)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
PLEASE = QtWidgets.QWidget()
ui = KindForMind()
ui.THINK(PLEASE)
PLEASE.show()
sys.exit(app.exec_())
At the first you should convert your opencv image to qpixlemap format with this code :
def convert_cv_qt(self, cv_img):
rgb_image = cv.cvtColor(cv_img, cv.COLOR_BGR2RGB)
h, w, ch = rgb_image.shape
bytes_per_line = ch * w
convert_to_Qt_format = QtGui.QImage(rgb_image.data, w, h, bytes_per_line, QtGui.QImage.Format.Format_RGB888)
p = convert_to_Qt_format.scaled(cv_img.shape[0], cv_img.shape[1], Qt.AspectRatioMode.KeepAspectRatio)
return QPixmap.fromImage(p)
and then you can insert your image to qtable like this :
qt_img = convert_cv_qt(cv_img)
rowPosition = table.rowCount()
table.insertRow(rowPosition)
table.setItem(rowPosition, 0, QTableWidgetItem('(My Text)'))
table.setItem(rowPosition, 1, QTableWidgetItem('datetime(2019, 5, 4)'))
table.setCellWidget(rowPosition, 2,self.getImageLabel(qt_img))
Для Pyqt6:
iLabel = QLabel()
icon = QPixmap("mark.png")
iLabel.setPixmap(icon)
iLabel.setAlignment(QtCore.Qt.AlignmentFlag.AlignHCenter | QtCore.Qt.AlignmentFlag.AlignVCenter)
self.tablewidget.setCellWidget(номер_строки, номер столбца, iLabel)
I’m very new to Python and even newer to PyQt. I’ve managed to create a table, but want to add images in certain cells. I’ve read that I need to subclass the QTableWidget class, or possibly the QTableWidgetItem class and re-implement the QPaintEvent. If anyone has an example of what goes into re-implementing the QPaintEvent I would really appreciate it.
Thanks,
Stephen
from PyQt4 import QtGui
import sys
imagePath = "enter the path to your image here"
class ImgWidget1(QtGui.QLabel):
def __init__(self, parent=None):
super(ImgWidget1, self).__init__(parent)
pic = QtGui.QPixmap(imagePath)
self.setPixmap(pic)
class ImgWidget2(QtGui.QWidget):
def __init__(self, parent=None):
super(ImgWidget2, self).__init__(parent)
self.pic = QtGui.QPixmap(imagePath)
def paintEvent(self, event):
painter = QtGui.QPainter(self)
painter.drawPixmap(0, 0, self.pic)
class Widget(QtGui.QWidget):
def __init__(self):
super(Widget, self).__init__()
tableWidget = QtGui.QTableWidget(10, 2, self)
tableWidget.setCellWidget(0, 1, ImgWidget1(self))
tableWidget.setCellWidget(1, 1, ImgWidget2(self))
if __name__ == "__main__":
app = QtGui.QApplication([])
wnd = Widget()
wnd.show()
sys.exit(app.exec_())
Two ways of doing it, since you asked for the painEvent.
Credits: http://www.mail-archive.com/[email protected]/msg01259.html
Hope this helps.
Edit: Added requested solution using a QTableWidget subclass.
from PyQt4 import QtGui
import sys
class ImageWidget(QtGui.QWidget):
def __init__(self, imagePath, parent):
super(ImageWidget, self).__init__(parent)
self.picture = QtGui.QPixmap(imagePath)
def paintEvent(self, event):
painter = QtGui.QPainter(self)
painter.drawPixmap(0, 0, self.picture)
class TableWidget(QtGui.QTableWidget):
def setImage(self, row, col, imagePath):
image = ImageWidget(imagePath, self)
self.setCellWidget(row, col, image)
if __name__ == "__main__":
app = QtGui.QApplication([])
tableWidget = TableWidget(10, 2)
tableWidget.setImage(0, 1, "<your image path here>")
tableWidget.show()
sys.exit(app.exec_())
I find this solution to be kind to my beginners mind:
from PyQt5 import QtCore, QtGui, QtWidgets
import sys
class KindForMind(object):
def THINK(self, PLEASE):
self.table = QtWidgets.QTableWidget()
pic = QtGui.QPixmap("your_image.jpg")
self.label = QtWidgets.QLabel(PLEASE)
self.label.setPixmap(pic)
self.table.setCellWidget(0,0, self.label)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
PLEASE = QtWidgets.QWidget()
ui = KindForMind()
ui.THINK(PLEASE)
PLEASE.show()
sys.exit(app.exec_())
At the first you should convert your opencv image to qpixlemap format with this code :
def convert_cv_qt(self, cv_img):
rgb_image = cv.cvtColor(cv_img, cv.COLOR_BGR2RGB)
h, w, ch = rgb_image.shape
bytes_per_line = ch * w
convert_to_Qt_format = QtGui.QImage(rgb_image.data, w, h, bytes_per_line, QtGui.QImage.Format.Format_RGB888)
p = convert_to_Qt_format.scaled(cv_img.shape[0], cv_img.shape[1], Qt.AspectRatioMode.KeepAspectRatio)
return QPixmap.fromImage(p)
and then you can insert your image to qtable like this :
qt_img = convert_cv_qt(cv_img)
rowPosition = table.rowCount()
table.insertRow(rowPosition)
table.setItem(rowPosition, 0, QTableWidgetItem('(My Text)'))
table.setItem(rowPosition, 1, QTableWidgetItem('datetime(2019, 5, 4)'))
table.setCellWidget(rowPosition, 2,self.getImageLabel(qt_img))
Для Pyqt6:
iLabel = QLabel()
icon = QPixmap("mark.png")
iLabel.setPixmap(icon)
iLabel.setAlignment(QtCore.Qt.AlignmentFlag.AlignHCenter | QtCore.Qt.AlignmentFlag.AlignVCenter)
self.tablewidget.setCellWidget(номер_строки, номер столбца, iLabel)