Welcome/Qt: Show featured examples in separate section

Task-number: QTCREATORBUG-28546
Change-Id: I9cf42cd11b442f720070c250da789d23001a1375
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/coreplugin/welcomepagehelper.cpp

@@ -718,6 +718,9 @@ ListModel *SectionedGridView::addSection(const Section &section, const QList<Lis
     auto allProducts = static_cast<ListModel *>(m_filteredAllItemsModel->sourceModel());
     allProducts->appendItems(items);
 
+    // only show section label(s) if there is more than one section
+    m_sectionLabels.at(0)->setVisible(m_sectionLabels.size() > 1);
+
     return model;
 }
 

src/plugins/qtsupport/exampleslistmodel.cpp

@@ -3,6 +3,8 @@
 
 #include "exampleslistmodel.h"
 
+#include "qtsupporttr.h"
+
 #include <QBuffer>
 #include <QApplication>
 #include <QDir>
@@ -263,24 +265,26 @@ static QPixmap fetchPixmapAndUpdatePixmapCache(const QString &url)
     return pixmap;
 }
 
-ExamplesListModel::ExamplesListModel(ExampleSetModel *exampleSetModel,
+ExamplesViewController::ExamplesViewController(ExampleSetModel *exampleSetModel,
-                                     bool isExamples,
+                                               SectionedGridView *view,
-                                     QObject *parent)
+                                               bool isExamples,
-    : Core::ListModel(parent)
+                                               QObject *parent)
+    : QObject(parent)
     , m_exampleSetModel(exampleSetModel)
+    , m_view(view)
     , m_isExamples(isExamples)
 {
     if (isExamples) {
         connect(m_exampleSetModel,
                 &ExampleSetModel::selectedExampleSetChanged,
                 this,
-                &ExamplesListModel::updateExamples);
+                &ExamplesViewController::updateExamples);
     }
     connect(Core::HelpManager::Signals::instance(),
             &Core::HelpManager::Signals::documentationChanged,
             this,
-            &ExamplesListModel::updateExamples);
+            &ExamplesViewController::updateExamples);
-    setPixmapFunction(fetchPixmapAndUpdatePixmapCache);
+    view->setPixmapFunction(fetchPixmapAndUpdatePixmapCache);
     updateExamples();
 }
 
@@ -493,7 +497,7 @@ static QList<ExampleItem *> parseTutorials(QXmlStreamReader *reader, const QStri
     return result;
 }
 
-void ExamplesListModel::updateExamples()
+void ExamplesViewController::updateExamples()
 {
     QString examplesInstallPath;
     QString demosInstallPath;
@@ -501,7 +505,7 @@ void ExamplesListModel::updateExamples()
     const QStringList sources = m_exampleSetModel->exampleSources(&examplesInstallPath,
                                                                   &demosInstallPath);
 
-    clear();
+    m_view->clear();
 
     QList<ExampleItem *> items;
     for (const QString &exampleSource : sources) {
@@ -550,8 +554,21 @@ void ExamplesListModel::updateExamples()
                                     [](ExampleItem *item) { return item->tags.contains("ios"); });
         }
     }
+    Utils::sort(items, [](ExampleItem *first, ExampleItem *second) {
+        return first->name.compare(second->name, Qt::CaseInsensitive) < 0;
+    });
 
-    appendItems(static_container_cast<ListItem *>(items));
+    QList<ExampleItem *> featured;
+    QList<ExampleItem *> other;
+    std::tie(featured, other) = Utils::partition(items,
+                                                 [](ExampleItem *i) { return i->isHighlighted; });
+
+    if (!featured.isEmpty()) {
+        m_view->addSection({Tr::tr("Featured", "Category for highlighted examples"), 0},
+                           static_container_cast<ListItem *>(featured));
+    }
+    m_view->addSection({Tr::tr("Other", "Category for all other examples"), 1},
+                       static_container_cast<ListItem *>(other));
 }
 
 void ExampleSetModel::updateQtVersionList()

src/plugins/qtsupport/exampleslistmodel.h

@@ -16,7 +16,7 @@
 namespace QtSupport {
 namespace Internal {
 
-class ExamplesListModel;
+class ExamplesViewController;
 
 class ExampleSetModel : public QStandardItemModel
 {
@@ -100,16 +100,20 @@ public:
     QStringList platforms;
 };
 
-class ExamplesListModel : public Core::ListModel
+class ExamplesViewController : public QObject
 {
     Q_OBJECT
 public:
-    explicit ExamplesListModel(ExampleSetModel *exampleSetModel, bool isExamples, QObject *parent);
+    explicit ExamplesViewController(ExampleSetModel *exampleSetModel,
+                                    Core::SectionedGridView *view,
+                                    bool isExamples,
+                                    QObject *parent);
 
     void updateExamples();
 
 private:
     ExampleSetModel *m_exampleSetModel;
+    Core::SectionedGridView *m_view;
     bool m_isExamples;
 };
 

src/plugins/qtsupport/gettingstartedwelcomepage.cpp

@@ -261,9 +261,6 @@ public:
     {
         m_exampleDelegate.setShowExamples(isExamples);
 
-        auto examplesModel = new ExamplesListModel(s_exampleSetModel, isExamples, this);
-        auto filteredModel = new ListModelFilter(examplesModel, this);
-
         auto searchBox = new SearchBox(this);
         m_searcher = searchBox->m_lineEdit;
 
@@ -306,19 +303,15 @@ public:
         grid->addWidget(searchBar, 0, 1);
         grid->addWidget(WelcomePageHelpers::panelBar(this), 0, 2);
 
-        auto gridView = new GridView(this);
+        auto gridView = new SectionedGridView(this);
-        gridView->setModel(filteredModel);
+        new ExamplesViewController(s_exampleSetModel, gridView, isExamples, this);
+
         gridView->setItemDelegate(&m_exampleDelegate);
-        if (auto sb = gridView->verticalScrollBar())
-            sb->setSingleStep(25);
         grid->addWidget(gridView, 1, 1, 1, 2);
 
         connect(&m_exampleDelegate, &ExampleDelegate::tagClicked,
                 this, &ExamplesPageWidget::onTagClicked);
-        connect(m_searcher,
+        connect(m_searcher, &QLineEdit::textChanged, gridView, &SectionedGridView::setSearchString);
-                &QLineEdit::textChanged,
-                filteredModel,
-                &ListModelFilter::setSearchString);
     }
 
     void onTagClicked(const QString &tag)