QFileSystemModel QTableView 修改日期高亮 [英] QFileSystemModel QTableView Date Modified highlighting
问题描述
我正在尝试使用 QFileSystemModel 和 QTableView 制作一个小文件浏览器.
I am trying to make a little file browser using QFileSystemModel and QTableView.
我想知道是否可以在修改日期"列中突出显示具有相同值的行,例如,如果我有两个或多个今天修改的文件,行以绿色突出显示,昨天修改的那些以绿色但较浅的阴影等突出显示.
I was wondering if it is possible to highlight rows with same value in "Date Modified" column, for instance if I have two or more files which been modified today row gets highlighted in green, those modified yesterday highlighted in green but lighter shade, etc.
推荐答案
要更改背景颜色,有几个选项,例如:
To change the background color there are several options such as:
覆盖模型的
data()
方法,使得返回值与角色Qt.BackgroundRole
相关联.
override the
data()
method of the model so that the return value associated with the roleQt.BackgroundRole
.
使用 QIdentityProxyModel 修改与 Qt.BackgroundRole
关联的值,类似于上一个选项
Use a QIdentityProxyModel that modifies the value associated with Qt.BackgroundRole
similar to the previous option
使用QStyledItemDelegate
来修改QStyleOptionViewItem
的backgroundBrush
属性.
最简单的选项是最后一个选项,所以我将展示您的实现:
The simplest option is the last option so I will show your implementation:
from PyQt5 import QtCore, QtGui, QtWidgets
class DateDelegate(QtWidgets.QStyledItemDelegate):
def initStyleOption(self, option, index):
super().initStyleOption(option, index)
model = index.model()
if isinstance(model, QtWidgets.QFileSystemModel):
dt = model.lastModified(index)
today = QtCore.QDateTime.currentDateTime()
yesterday = today.addDays(-1)
if dt < yesterday:
option.backgroundBrush = QtGui.QColor(0, 255, 0)
else:
option.backgroundBrush = QtGui.QColor(0, 155, 0)
def main():
import sys
app = QtWidgets.QApplication(sys.argv)
path_dir = QtCore.QDir.currentPath()
view = QtWidgets.QTableView()
model = QtWidgets.QFileSystemModel()
view.setModel(model)
model.setRootPath(path_dir)
view.setRootIndex(model.index(path_dir))
view.show()
delegate = DateDelegate(view)
view.setItemDelegate(delegate)
sys.exit(app.exec_())
if __name__ == "__main__":
main()
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