您实际上正在为 QListView/QListWidget 寻找一些更深奥的选项。
在顶层,添加QTreeWidget
或QTreeView
将为您提供您正在寻找的层次结构,以及管理滚动区域。
(扩展)的每个列出的项目都QTreeXItem
将是QListView
/ QListWidget
,设置setViewMode(QListView::IconMode)
在它们上面。
编辑:请注意,要获得上面想要的精确外观,您可能必须使用 QListView 并使用自定义委托,自己处理绘图(除非您能找到一个完全符合您要求的主题)。但是,我使用 Q*Widget 类在下面编写了一个简短的 PyQt 解决方案,因为它们更短,并且仍将演示如何获得正确的布局。如果您使用 C++,同样的 Qt 函数调用也适用,但显然您可能有或多或少的簿记。
import sys
from PyQt4 import QtGui, QtCore
class displayItem(QtGui.QWidget): #A simple widget to display, just centers a digit in a 100x100 widget
def __init__(self,num):
QtGui.QWidget.__init__(self)
self.size=100
self.resize(self.size,self.size)
self.setMinimumSize(self.size,self.size)
self.text = num
def paintEvent(self,event):
p = QtGui.QPainter(self)
p.drawText(self.size//2,self.size//2,str(self.text))
app = QtGui.QApplication(sys.argv)
widget = QtGui.QTreeWidget()
widget.setWindowTitle('simple tree')
#Build the list widgets
treeItem1 = QtGui.QTreeWidgetItem(widget)
treeItem1.setText(0,"TreeWidget Parent") #Sets the "header" for your [+] box
list1 = QtGui.QListWidget() #This will contain your icon list
list1.setMovement(QtGui.QListView.Static) #otherwise the icons are draggable
list1.setResizeMode(QtGui.QListView.Adjust) #Redo layout every time we resize
list1.setViewMode(QtGui.QListView.IconMode) #Layout left-to-right, not top-to-bottom
listItem = QtGui.QListWidgetItem(list1)
listItem.setSizeHint(QtCore.QSize(100,100)) #Or else the widget items will overlap (irritating bug)
list1.setItemWidget(listItem,displayItem(1))
listItem = QtGui.QListWidgetItem(list1) #Add a few more items
listItem.setSizeHint(QtCore.QSize(100,100))
list1.setItemWidget(listItem,displayItem(2))
listItem = QtGui.QListWidgetItem(list1)
listItem.setSizeHint(QtCore.QSize(100,100))
list1.setItemWidget(listItem,displayItem(3))
list1.setAutoFillBackground(True) #Required for a widget that will be a QTreeWidgetItem widget
treeSubItem1 = QtGui.QTreeWidgetItem(treeItem1) #Make a subitem to hold our list
widget.setItemWidget(treeSubItem1,0,list1) #Assign this list as a tree item
treeItem2 = QtGui.QTreeWidgetItem(widget) #Make a fake second parent
treeItem2.setText(0,"TreeWidget Parent II")
widget.show() #kick off the app in standard PyQt4 fashion
sys.exit(app.exec_())