我想设计一个自定义ListView
小部件,该小部件具有类似于以下内容的自定义项:https://i.stack.imgur.com/iTNbN.png
但是,qt文档和一些stackoverflow帖子指出,理想情况下应使用QStyleItemDelegate
。我以前从未使用过“代理人”,但是据我的研究了解,ListView会调用它们来绘制/渲染每个项目。
[我在另一个项目(https://github.com/pyblish/pyblish-lite/blob/master/pyblish_lite/delegate.py)中找到了一个委托示例,他们手工绘制了所有内容/本质上是通过绘制矩形来重建整个小部件。
这对我来说似乎不切实际,因为大多数时候自定义项小部件可以是现有小部件的复合。看一下上面的截图。它本质上包含一个Qlabel,QPixmap和四个DoubleSpinBoxes。
问题:您将如何使用现有的绘画/渲染方法,而不是自己手动绘画所有内容?
这样,您可以从现有的成员方法中受益,并且可以使用布局来构造窗口小部件。例如,第一个ListViewItem应该将模型数据传递给委托人,以便可以将self.lightGroupName
QLabel的文本设置为“ Light1”。
非常感谢您的帮助,因为我不知道如何从这里继续:
from PySide2 import QtCore, QtGui, QtWidgets
class LightDelagate(QtWidgets.QStyledItemDelegate): #custom item view
def __init__(self, parent=None):
super(LightDelagate, self).__init__(parent)
self.setupUI()
def setupUI(self):
self.masterWidget = QtWidgets.QWidget()
#Light Group Header
self.hlayLightHeader = QtWidgets.QHBoxLayout()
self.lightGroupName = QtWidgets.QLabel("Checker")
self.hlayLightHeader.addWidget(self.lightGroupName)
#Light AOV Preview
self.lightPreview = QtWidgets.QLabel()
#set size
self.aovThumbnail = QtGui.QPixmap(180, 101)
#self.lightPreview.setPixmap(self.aovThumbnail.scaled(self.lightPreview.width(), self.lightPreview.height(), QtCore.Qt.KeepAspectRatio))
# #Color Dials
# self.hlayColorDials = QtWidgets.QHBoxLayout()
# self.rgbDials = QtWidgets.QHBoxLayout()
# self.rDial = QtWidgets.QDoubleSpinBox()
# self.rDial.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
# self.gDial = QtWidgets.QDoubleSpinBox()
# self.gDial.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
# self.bDial = QtWidgets.QDoubleSpinBox()
# self.bDial.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
# self.rgbDials.addWidget(self.rDial)
# self.rgbDials.addWidget(self.gDial)
# self.rgbDials.addWidget(self.bDial)
# #Exposure
# self.hlayExposureDials = QtWidgets.QHBoxLayout()
# self.exposureDial = QtWidgets.QDoubleSpinBox()
# self.exposureDial.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
# self.hlayExposureDials.addWidget(self.exposureDial)
# self.hlayColorDials.addLayout(self.rgbDials)
# self.hlayColorDials.addLayout(self.hlayExposureDials)
#entire layout
self.vlayWidget = QtWidgets.QVBoxLayout()
self.vlayWidget.addLayout(self.hlayLightHeader)
self.vlayWidget.addWidget(self.lightPreview)
# self.vlayWidget.addLayout(self.hlayColorDials)
self.vlayWidget.setContentsMargins(2,2,2,2)
self.vlayWidget.setSpacing(2)
self.masterWidget.setLayout(self.vlayWidget)
def paint(self, painter, option, index):
rowData = index.model().data(index, QtCore.Qt.DisplayRole)
self.lightGroupName.setText(rowData[0])
print (option.rect)
painter.drawRect(option.rect)
painter.drawText()
def sizeHint(self, option, index):
return QtCore.QSize(200, 150)
class LightListModel(QtCore.QAbstractListModel): #data container for list view
def __init__(self, lightList= None):
super(LightListModel, self).__init__()
self.lightList = lightList or []
#reimplement
def rowCount(self, index):
return len(self.lightList)
def data(self, index, role):
if role == QtCore.Qt.DisplayRole:
lightGroupData = self.lightList[index.row()]
return lightGroupData
class LightListView(QtWidgets.QListView): #
def __init__(self):
super(LightListView, self).__init__()
self.setFlow(QtWidgets.QListView.LeftToRight)
self.setItemDelegate(LightDelagate(self))
self.setMinimumWidth(1880)
lightListTest = [
('Light1' , {'lightList' : [], 'lightColor': (0,0,0), 'mod_exposure': 1, 'mod_color' : (0,0,0)}),
('Light2' , {'lightList' : [], 'lightColor': (0,0,0), 'mod_exposure': 1, 'mod_color' : (0,0,0)}),
('Light3' , {'lightList' : [], 'lightColor': (0,0,0), 'mod_exposure': 1, 'mod_color' : (0,0,0)}),
('Light4' , {'lightList' : [], 'lightColor': (0,0,0), 'mod_exposure': 1, 'mod_color' : (0,0,0)})
]
app = QtWidgets.QApplication([])
LLV = LightListView()
model = LightListModel(lightList=lightListTest)
LLV.setModel(model)
LLV.show()
LLV.setSe
app.exec_()
我想设计一个自定义ListView窗口小部件,该窗口小部件具有类似于以下内容的自定义项:https://i.stack.imgur.com/iTNbN.png但是,qt文档和一些stackoverflow帖子指出应该... >
代替QListView
,您可以使用QListWidget
并覆盖itemWidget
吗?这样做的想法是,它使您可以返回itemWidget
(根据您的屏幕快照包含子项),而不必实现调用每个子小部件的QWidget
方法的QStyledItemDelegate
。