我想在垂直layout.i中显示我的可点击图片。我从Google得到了类似的示例，但我不知道如何从可点击标签中获取图片。所以如果我选择了其他项目，谁能帮助我在vbox中添加图片，那么第一个项目将在垂直框中删除。我只想显示最后一个可点击的项目。在这里，我尝试了很多方法，但我得到了object。事先谢谢您。
下面是示例：
from PyQt4 import QtCore, QtGui
import functools
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
highlight_dir = './floder1'
scrollArea = QtGui.QScrollArea(widgetResizable=True)
self.setCentralWidget(scrollArea)
content_widget = QtGui.QWidget()
scrollArea.setWidget(content_widget)
self._layout = QtGui.QGridLayout(content_widget)
self._it = QtCore.QDirIterator(highlight_dir)
self.vbox = QtGui.QVBoxLayout()
self.mainLayout = QtGui.QGridLayout()
self.mainLayout.addLayout(self.vbox,0,1)
self.mainLayout.addWidget(scrollArea,0,0)
self.setCentralWidget(QtGui.QWidget(self))
self.centralWidget().setLayout(self.mainLayout)
self._row, self._col = 0, 0
QtCore.QTimer(self, interval=1, timeout=self.load_image).start()
def load_image(self):
if self._it.hasNext():
pixmap = QtGui.QPixmap(self._it.next())
if not pixmap.isNull():
vlay = QtGui.QVBoxLayout()
self.label_pixmap = QtGui.QLabel(alignment=QtCore.Qt.AlignCenter, pixmap=pixmap)
self.label_pixmap.mousePressEvent= functools.partial(self.item_discription,source_object=self.label_pixmap)
self.label_text = QtGui.QLabel(alignment=QtCore.Qt.AlignCenter, text=self._it.fileName())
print self.label_text.text()
vlay.addWidget(self.label_pixmap)
vlay.addWidget(self.label_text)
vlay.addStretch()
self._layout.addLayout(vlay, self._row, self._col)
self._col += 1
if self._col == 3:
self._row += 1
self._col = 0
def item_discription(self,event,source_object=None):
print self.label_text.text() #how to add clickable qlabel to vbox
self.vbox.addwidget(label_pixmap)
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
w = MainWindow()
w.setGeometry(500, 300, 900, 500)
w.show()
sys.exit(app.exec_())
最佳答案
如果要使QLabel在单击时通知您，最简单的方法是按照this answer中的指示进行编写。
另一方面，最好将QScrollArea用作QVBoxLayout的基础，因为太多的内容将无法全部可视化。
最后，我更喜欢使用QSplitter，因为它可以轻松更改小部件的大小。
from PyQt4 import QtCore, QtGui
from functools import partial
class ClickableLabel(QtGui.QLabel):
clicked = QtCore.pyqtSignal()
def mousePressEvent(self, event):
self.clicked.emit()
super(ClickableLabel, self).mousePressEvent(event)
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
scrollArea_left = QtGui.QScrollArea(widgetResizable=True)
content_widget_left = QtGui.QWidget()
scrollArea_left.setWidget(content_widget_left)
self._layout = QtGui.QGridLayout(content_widget_left)
scrollArea_right = QtGui.QScrollArea(widgetResizable=True)
content_widget_right = QtGui.QWidget()
scrollArea_right.setWidget(content_widget_right)
self._vbox = QtGui.QVBoxLayout(content_widget_right)
splitter = QtGui.QSplitter()
splitter.addWidget(scrollArea_left)
splitter.addWidget(scrollArea_right)
splitter.setStretchFactor(0, 3)
splitter.setStretchFactor(1, 1)
self.setCentralWidget(splitter)
highlight_dir = './floder1'
self._it = QtCore.QDirIterator(highlight_dir)
self._row, self._col = 0, 0
QtCore.QTimer(self, interval=1, timeout=self.load_image).start()
def load_image(self):
if self._it.hasNext():
pixmap = QtGui.QPixmap(self._it.next())
if pixmap.isNull():
return
vlay = QtGui.QVBoxLayout()
label_pixmap = ClickableLabel(alignment=QtCore.Qt.AlignCenter, pixmap=pixmap)
label_text = QtGui.QLabel(alignment=QtCore.Qt.AlignCenter, text=self._it.fileName())
label_pixmap.clicked.connect(partial(self.on_clicked, self._it.fileName(), pixmap))
vlay.addWidget(label_pixmap)
vlay.addWidget(label_text)
vlay.addStretch()
self._layout.addLayout(vlay, self._row, self._col)
self._col += 1
if self._col == 3:
self._row += 1
self._col = 0
def on_clicked(self, text, pixmap):
vlay = QtGui.QVBoxLayout()
vlay.addWidget(QtGui.QLabel(alignment=QtCore.Qt.AlignCenter, text=text))
vlay.addWidget(QtGui.QLabel(alignment=QtCore.Qt.AlignCenter, pixmap=pixmap))
self._vbox.addLayout(vlay)
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
w = MainWindow()
w.showMaximized()
sys.exit(app.exec_())
更新：
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
scrollArea_left = QtGui.QScrollArea(widgetResizable=True)
content_widget_left = QtGui.QWidget()
scrollArea_left.setWidget(content_widget_left)
self._layout = QtGui.QGridLayout(content_widget_left)
self._label_pixmap = QtGui.QLabel(alignment=QtCore.Qt.AlignCenter)
self._label_text = QtGui.QLabel(alignment=QtCore.Qt.AlignCenter)
widget = QtGui.QWidget()
vbox = QtGui.QVBoxLayout(widget)
vbox.addWidget(self._label_pixmap)
vbox.addWidget(self._label_text)
splitter = QtGui.QSplitter()
splitter.addWidget(scrollArea_left)
splitter.addWidget(widget)
splitter.setStretchFactor(0, 3)
splitter.setStretchFactor(1, 1)
self.setCentralWidget(splitter)
highlight_dir = './floder1'
self._it = QtCore.QDirIterator(highlight_dir)
self._row, self._col = 0, 0
QtCore.QTimer(self, interval=1, timeout=self.load_image).start()
def load_image(self):
if self._it.hasNext():
pixmap = QtGui.QPixmap(self._it.next())
if pixmap.isNull():
return
vlay = QtGui.QVBoxLayout()
label_pixmap = ClickableLabel(alignment=QtCore.Qt.AlignCenter, pixmap=pixmap)
label_text = QtGui.QLabel(alignment=QtCore.Qt.AlignCenter, text=self._it.fileName())
label_pixmap.clicked.connect(partial(self.on_clicked, self._it.fileName(), pixmap))
vlay.addWidget(label_pixmap)
vlay.addWidget(label_text)
vlay.addStretch()
self._layout.addLayout(vlay, self._row, self._col)
self._col += 1
if self._col == 3:
self._row += 1
self._col = 0
def on_clicked(self, text, pixmap):
self._label_pixmap.setPixmap(pixmap)
self._label_text.setText(text)
关于python - 如何在Verticalbox布局中获取选定的最后可点击图像，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/53995267/