window.cpp 范例文件

itemviews/customsortfiltermodel/window.cpp
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#include <QtWidgets> #include "mysortfilterproxymodel.h" #include "window.h" #include "filterwidget.h" Window::Window() { proxyModel = new MySortFilterProxyModel(this); sourceView = new QTreeView; sourceView->setRootIsDecorated(false); sourceView->setAlternatingRowColors(true); QHBoxLayout *sourceLayout = new QHBoxLayout; sourceLayout->addWidget(sourceView); sourceGroupBox = new QGroupBox(tr("Original Model")); sourceGroupBox->setLayout(sourceLayout); filterWidget = new FilterWidget; filterWidget->setText("Grace|Sports"); connect(filterWidget, &FilterWidget::filterChanged, this, &Window::textFilterChanged); filterPatternLabel = new QLabel(tr("&Filter pattern:")); filterPatternLabel->setBuddy(filterWidget); fromDateEdit = new QDateEdit; fromDateEdit->setDate(QDate(1970, 01, 01)); fromLabel = new QLabel(tr("F&rom:")); fromLabel->setBuddy(fromDateEdit); toDateEdit = new QDateEdit; toDateEdit->setDate(QDate(2099, 12, 31)); toLabel = new QLabel(tr("&To:")); toLabel->setBuddy(toDateEdit); connect(filterWidget, &QLineEdit::textChanged, this, &Window::textFilterChanged); connect(fromDateEdit, &QDateTimeEdit::dateChanged, this, &Window::dateFilterChanged); connect(toDateEdit, &QDateTimeEdit::dateChanged, this, &Window::dateFilterChanged); proxyView = new QTreeView; proxyView->setRootIsDecorated(false); proxyView->setAlternatingRowColors(true); proxyView->setModel(proxyModel); proxyView->setSortingEnabled(true); proxyView->sortByColumn(1, Qt::AscendingOrder); QGridLayout *proxyLayout = new QGridLayout; proxyLayout->addWidget(proxyView, 0, 0, 1, 3); proxyLayout->addWidget(filterPatternLabel, 1, 0); proxyLayout->addWidget(filterWidget, 1, 1); proxyLayout->addWidget(fromLabel, 3, 0); proxyLayout->addWidget(fromDateEdit, 3, 1, 1, 2); proxyLayout->addWidget(toLabel, 4, 0); proxyLayout->addWidget(toDateEdit, 4, 1, 1, 2); proxyGroupBox = new QGroupBox(tr("Sorted/Filtered Model")); proxyGroupBox->setLayout(proxyLayout); QVBoxLayout *mainLayout = new QVBoxLayout; mainLayout->addWidget(sourceGroupBox); mainLayout->addWidget(proxyGroupBox); setLayout(mainLayout); setWindowTitle(tr("Custom Sort/Filter Model")); resize(500, 450); } void Window::setSourceModel(QAbstractItemModel *model) { proxyModel->setSourceModel(model); sourceView->setModel(model); } void Window::textFilterChanged() { QRegExp regExp(filterWidget->text(), filterWidget->caseSensitivity(), filterWidget->patternSyntax()); proxyModel->setFilterRegExp(regExp); } void Window::dateFilterChanged() { proxyModel->setFilterMinimumDate(fromDateEdit->date()); proxyModel->setFilterMaximumDate(toDateEdit->date()); }