widgetgallery.cpp Example File

widgets/styles/widgetgallery.cpp
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#include <QtWidgets>

#include "norwegianwoodstyle.h"
#include "widgetgallery.h"

WidgetGallery::WidgetGallery(QWidget *parent)
    : QDialog(parent)
{
    originalPalette = QApplication::palette();

    styleComboBox = new QComboBox;
    styleComboBox->addItem("NorwegianWood");
    styleComboBox->addItems(QStyleFactory::keys());

    styleLabel = new QLabel(tr("&Style:"));
    styleLabel->setBuddy(styleComboBox);

    useStylePaletteCheckBox = new QCheckBox(tr("&Use style's standard palette"));
    useStylePaletteCheckBox->setChecked(true);

    disableWidgetsCheckBox = new QCheckBox(tr("&Disable widgets"));

    createTopLeftGroupBox();
    createTopRightGroupBox();
    createBottomLeftTabWidget();
    createBottomRightGroupBox();
    createProgressBar();

    connect(styleComboBox, SIGNAL(activated(QString)),
            this, SLOT(changeStyle(QString)));
    connect(useStylePaletteCheckBox, SIGNAL(toggled(bool)),
            this, SLOT(changePalette()));
    connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)),
            topLeftGroupBox, SLOT(setDisabled(bool)));
    connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)),
            topRightGroupBox, SLOT(setDisabled(bool)));
    connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)),
            bottomLeftTabWidget, SLOT(setDisabled(bool)));
    connect(disableWidgetsCheckBox, SIGNAL(toggled(bool)),
            bottomRightGroupBox, SLOT(setDisabled(bool)));

    QHBoxLayout *topLayout = new QHBoxLayout;
    topLayout->addWidget(styleLabel);
    topLayout->addWidget(styleComboBox);
    topLayout->addStretch(1);
    topLayout->addWidget(useStylePaletteCheckBox);
    topLayout->addWidget(disableWidgetsCheckBox);

    QGridLayout *mainLayout = new QGridLayout;
    mainLayout->addLayout(topLayout, 0, 0, 1, 2);
    mainLayout->addWidget(topLeftGroupBox, 1, 0);
    mainLayout->addWidget(topRightGroupBox, 1, 1);
    mainLayout->addWidget(bottomLeftTabWidget, 2, 0);
    mainLayout->addWidget(bottomRightGroupBox, 2, 1);
    mainLayout->addWidget(progressBar, 3, 0, 1, 2);
    mainLayout->setRowStretch(1, 1);
    mainLayout->setRowStretch(2, 1);
    mainLayout->setColumnStretch(0, 1);
    mainLayout->setColumnStretch(1, 1);
    setLayout(mainLayout);

    setWindowTitle(tr("Styles"));
    changeStyle("NorwegianWood");
}

void WidgetGallery::changeStyle(const QString &styleName)
{
    if (styleName == "NorwegianWood") {
        QApplication::setStyle(new NorwegianWoodStyle);
    } else {
        QApplication::setStyle(QStyleFactory::create(styleName));
    }
    changePalette();
}

void WidgetGallery::changePalette()
{
    if (useStylePaletteCheckBox->isChecked())
        QApplication::setPalette(QApplication::style()->standardPalette());
    else
        QApplication::setPalette(originalPalette);
}

void WidgetGallery::advanceProgressBar()
{
    int curVal = progressBar->value();
    int maxVal = progressBar->maximum();
    progressBar->setValue(curVal + (maxVal - curVal) / 100);
}

void WidgetGallery::createTopLeftGroupBox()
{
    topLeftGroupBox = new QGroupBox(tr("Group 1"));

    radioButton1 = new QRadioButton(tr("Radio button 1"));
    radioButton2 = new QRadioButton(tr("Radio button 2"));
    radioButton3 = new QRadioButton(tr("Radio button 3"));
    radioButton1->setChecked(true);

    checkBox = new QCheckBox(tr("Tri-state check box"));
    checkBox->setTristate(true);
    checkBox->setCheckState(Qt::PartiallyChecked);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(radioButton1);
    layout->addWidget(radioButton2);
    layout->addWidget(radioButton3);
    layout->addWidget(checkBox);
    layout->addStretch(1);
    topLeftGroupBox->setLayout(layout);
}

void WidgetGallery::createTopRightGroupBox()
{
    topRightGroupBox = new QGroupBox(tr("Group 2"));

    defaultPushButton = new QPushButton(tr("Default Push Button"));
    defaultPushButton->setDefault(true);

    togglePushButton = new QPushButton(tr("Toggle Push Button"));
    togglePushButton->setCheckable(true);
    togglePushButton->setChecked(true);

    flatPushButton = new QPushButton(tr("Flat Push Button"));
    flatPushButton->setFlat(true);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(defaultPushButton);
    layout->addWidget(togglePushButton);
    layout->addWidget(flatPushButton);
    layout->addStretch(1);
    topRightGroupBox->setLayout(layout);
}

void WidgetGallery::createBottomLeftTabWidget()
{
    bottomLeftTabWidget = new QTabWidget;
    bottomLeftTabWidget->setSizePolicy(QSizePolicy::Preferred,
                                       QSizePolicy::Ignored);

    QWidget *tab1 = new QWidget;
    tableWidget = new QTableWidget(10, 10);

    QHBoxLayout *tab1hbox = new QHBoxLayout;
    tab1hbox->setMargin(5);
    tab1hbox->addWidget(tableWidget);
    tab1->setLayout(tab1hbox);

    QWidget *tab2 = new QWidget;
    textEdit = new QTextEdit;

    textEdit->setPlainText(tr("Twinkle, twinkle, little star,\n"
                              "How I wonder what you are.\n"
                              "Up above the world so high,\n"
                              "Like a diamond in the sky.\n"
                              "Twinkle, twinkle, little star,\n"
                              "How I wonder what you are!\n"));

    QHBoxLayout *tab2hbox = new QHBoxLayout;
    tab2hbox->setMargin(5);
    tab2hbox->addWidget(textEdit);
    tab2->setLayout(tab2hbox);

    bottomLeftTabWidget->addTab(tab1, tr("&Table"));
    bottomLeftTabWidget->addTab(tab2, tr("Text &Edit"));
}

void WidgetGallery::createBottomRightGroupBox()
{
    bottomRightGroupBox = new QGroupBox(tr("Group 3"));
    bottomRightGroupBox->setCheckable(true);
    bottomRightGroupBox->setChecked(true);

    lineEdit = new QLineEdit("s3cRe7");
    lineEdit->setEchoMode(QLineEdit::Password);

    spinBox = new QSpinBox(bottomRightGroupBox);
    spinBox->setValue(50);

    dateTimeEdit = new QDateTimeEdit(bottomRightGroupBox);
    dateTimeEdit->setDateTime(QDateTime::currentDateTime());

    slider = new QSlider(Qt::Horizontal, bottomRightGroupBox);
    slider->setValue(40);

    scrollBar = new QScrollBar(Qt::Horizontal, bottomRightGroupBox);
    scrollBar->setValue(60);

    dial = new QDial(bottomRightGroupBox);
    dial->setValue(30);
    dial->setNotchesVisible(true);

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(lineEdit, 0, 0, 1, 2);
    layout->addWidget(spinBox, 1, 0, 1, 2);
    layout->addWidget(dateTimeEdit, 2, 0, 1, 2);
    layout->addWidget(slider, 3, 0);
    layout->addWidget(scrollBar, 4, 0);
    layout->addWidget(dial, 3, 1, 2, 1);
    layout->setRowStretch(5, 1);
    bottomRightGroupBox->setLayout(layout);
}

void WidgetGallery::createProgressBar()
{
    progressBar = new QProgressBar;
    progressBar->setRange(0, 10000);
    progressBar->setValue(0);

    QTimer *timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(advanceProgressBar()));
    timer->start(1000);
}

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.