multipagewidget.cpp Example File

containerextension/multipagewidget.cpp
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#include <QComboBox> #include <QVBoxLayout> #include <QStackedWidget> #include "multipagewidget.h" MultiPageWidget::MultiPageWidget(QWidget *parent) : QWidget(parent) , stackWidget(new QStackedWidget) , comboBox(new QComboBox) { comboBox->setObjectName(QStringLiteral("__qt__passive_comboBox")); connect(comboBox, QOverload<int>::of(&QComboBox::activated), this, &MultiPageWidget::setCurrentIndex); QVBoxLayout *layout = new QVBoxLayout(this); layout->addWidget(comboBox); layout->addWidget(stackWidget); } QSize MultiPageWidget::sizeHint() const { return QSize(200, 150); } void MultiPageWidget::addPage(QWidget *page) { insertPage(count(), page); } void MultiPageWidget::removePage(int index) { QWidget *widget = stackWidget->widget(index); stackWidget->removeWidget(widget); comboBox->removeItem(index); } int MultiPageWidget::count() const { return stackWidget->count(); } int MultiPageWidget::currentIndex() const { return stackWidget->currentIndex(); } void MultiPageWidget::insertPage(int index, QWidget *page) { page->setParent(stackWidget); stackWidget->insertWidget(index, page); QString title = page->windowTitle(); if (title.isEmpty()) { title = tr("Page %1").arg(comboBox->count() + 1); page->setWindowTitle(title); } connect(page, &QWidget::windowTitleChanged, this, &MultiPageWidget::pageWindowTitleChanged); comboBox->insertItem(index, title); } void MultiPageWidget::setCurrentIndex(int index) { if (index != currentIndex()) { stackWidget->setCurrentIndex(index); comboBox->setCurrentIndex(index); emit currentIndexChanged(index); } } void MultiPageWidget::pageWindowTitleChanged() { QWidget *page = qobject_cast<QWidget *>(sender()); const int index = stackWidget->indexOf(page); comboBox->setItemText(index, page->windowTitle()); } QWidget* MultiPageWidget::widget(int index) { return stackWidget->widget(index); } QString MultiPageWidget::pageTitle() const { if (const QWidget *currentWidget = stackWidget->currentWidget()) return currentWidget->windowTitle(); return QString(); } void MultiPageWidget::setPageTitle(QString const &newTitle) { if (QWidget *currentWidget = stackWidget->currentWidget()) currentWidget->setWindowTitle(newTitle); emit pageTitleChanged(newTitle); }