|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# window.cpp Example File
itemviews/customsortfiltermodel/window.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #include <QtGui>

    #include "mysortfilterproxymodel.h"
    #include "window.h"

    Window::Window()
    {
        proxyModel = new MySortFilterProxyModel(this);
        proxyModel->setDynamicSortFilter(true);

        sourceGroupBox = new QGroupBox(tr("Original Model"));
        proxyGroupBox = new QGroupBox(tr("Sorted/Filtered Model"));

        sourceView = new QTreeView;
        sourceView->setRootIsDecorated(false);
        sourceView->setAlternatingRowColors(true);

        proxyView = new QTreeView;
        proxyView->setRootIsDecorated(false);
        proxyView->setAlternatingRowColors(true);
        proxyView->setModel(proxyModel);
        proxyView->setSortingEnabled(true);

        filterCaseSensitivityCheckBox = new QCheckBox(tr("Case sensitive filter"));

        filterPatternLineEdit = new QLineEdit;
        filterPatternLabel = new QLabel(tr("&Filter pattern:"));
        filterPatternLabel->setBuddy(filterPatternLineEdit);

        filterSyntaxComboBox = new QComboBox;
        filterSyntaxComboBox->addItem(tr("Regular expression"), QRegExp::RegExp);
        filterSyntaxComboBox->addItem(tr("Wildcard"), QRegExp::Wildcard);
        filterSyntaxComboBox->addItem(tr("Fixed string"), QRegExp::FixedString);

        fromDateEdit = new QDateEdit;
        fromLabel = new QLabel(tr("F&rom:"));
        fromLabel->setBuddy(fromDateEdit);

        toDateEdit = new QDateEdit;
        toLabel = new QLabel(tr("&To:"));
        toLabel->setBuddy(toDateEdit);

        connect(filterPatternLineEdit, SIGNAL(textChanged(const QString &)),
                this, SLOT(textFilterChanged()));
        connect(filterSyntaxComboBox, SIGNAL(currentIndexChanged(int)),
                this, SLOT(textFilterChanged()));
        connect(filterCaseSensitivityCheckBox, SIGNAL(toggled(bool)),
                this, SLOT(textFilterChanged()));
        connect(fromDateEdit, SIGNAL(dateChanged(const QDate &)),
                this, SLOT(dateFilterChanged()));
        connect(toDateEdit, SIGNAL(dateChanged(const QDate &)),
                this, SLOT(dateFilterChanged()));

        QHBoxLayout *sourceLayout = new QHBoxLayout;
        sourceLayout->addWidget(sourceView);
        sourceGroupBox->setLayout(sourceLayout);

        QGridLayout *proxyLayout = new QGridLayout;
        proxyLayout->addWidget(proxyView, 0, 0, 1, 3);
        proxyLayout->addWidget(filterPatternLabel, 1, 0);
        proxyLayout->addWidget(filterPatternLineEdit, 1, 1);
        proxyLayout->addWidget(filterSyntaxComboBox, 1, 2);
        proxyLayout->addWidget(filterCaseSensitivityCheckBox, 2, 0, 1, 3);
        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->setLayout(proxyLayout);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addWidget(sourceGroupBox);
        mainLayout->addWidget(proxyGroupBox);
        setLayout(mainLayout);

        setWindowTitle(tr("Custom Sort/Filter Model"));
        resize(500, 450);

        proxyView->sortByColumn(1, Qt::AscendingOrder);
        filterPatternLineEdit->setText("Grace|Sports");
        filterCaseSensitivityCheckBox->setChecked(true);

        fromDateEdit->setDate(QDate(1970, 01, 01));
        toDateEdit->setDate(QDate(2099, 12, 31));
    }

    void Window::setSourceModel(QAbstractItemModel *model)
    {
        proxyModel->setSourceModel(model);
        sourceView->setModel(model);
    }

    void Window::textFilterChanged()
    {
        QRegExp::PatternSyntax syntax =
                QRegExp::PatternSyntax(filterSyntaxComboBox->itemData(
                        filterSyntaxComboBox->currentIndex()).toInt());
        Qt::CaseSensitivity caseSensitivity =
                filterCaseSensitivityCheckBox->isChecked() ? Qt::CaseSensitive
                                                           : Qt::CaseInsensitive;

        QRegExp regExp(filterPatternLineEdit->text(), caseSensitivity, syntax);
        proxyModel->setFilterRegExp(regExp);
    }

    void Window::dateFilterChanged()
    {
        proxyModel->setFilterMinimumDate(fromDateEdit->date());
        proxyModel->setFilterMaximumDate(toDateEdit->date());
    }