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Navigation Menu

A horizontal navigation list with one open menu or page at a time.

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Live C++Source and licences
#include <QApplication>
#include <QFile>
#include <QHBoxLayout>
#include <QLabel>
#include <QPainter>
#include <QStandardItemModel>
#include <QUrl>
#include <QVBoxLayout>
#include <array>
#ifdef SHADCN_GALLERY_MEDIA
#include <shadcn/media.hpp>
#endif
#include <shadcn/shadcn.hpp>

QWidget* example(QWidget* parent = nullptr) {
    using namespace shadcn;
    auto* canvas = new QWidget(parent);
    canvas->setAutoFillBackground(true);
    auto* outer = new QHBoxLayout(canvas);
    outer->setContentsMargins(32, 32, 32, 32);
    auto* host = new QWidget(canvas);
    auto* layout = new QVBoxLayout(host);
    layout->setContentsMargins(0, 0, 0, 0);
    layout->setSpacing(16);
    outer->addStretch();
    outer->addWidget(host, 0, Qt::AlignCenter);
    outer->addStretch();
    auto* navigation = new NavigationMenu(host);
    (void)navigation->addLink("Home");
    (void)navigation->addMenu("Components", "components");
    auto* contents = new QWidget(navigation);
    auto* links = new QVBoxLayout(contents);
    links->addWidget(new Label("Components", contents));
    links->addWidget(new QLabel("Buttons, inputs and layouts.", contents));
    navigation->setMenuContent("components", *contents);
    (void)navigation->addLink("Documentation");
    layout->addWidget(navigation);
    return canvas;
}

Installation​

add_subdirectory(shadcn-cpp)
target_link_libraries(app PRIVATE shadcn::widgets)

Usage​

#include <shadcn/navigation.hpp>
#include <QLabel>

shadcn::NavigationMenu menu(parent);
menu.addLink("Home", "home");
menu.addMenu("Products", "products");
menu.setMenuContent(
    "products", *new QLabel("Product links", &menu));
menu.setCurrentValue("home");

API​

addLink and addMenu create entries. setMenuContent supplies popup content and currentChanged reports selection.

Variations​

Use links for direct destinations and menus for grouped content.

Keyboard and accessibility​

Qt supplies native focus, keyboard interaction and accessible object roles. Give the component a visible label or an accessible name when its text alone does not explain the action.

Ownership​

The parent widget owns the component. Child widgets created through a component layout follow Qt parent ownership. References returned by helper methods are borrowed.