Show the reservation’s holder name in timelineview

TimelineView is not a general control that can be used with any model,
thus i do not need the complexity of Qt’s QQmlDelegateModel incubation
task to initialize required properties.  I _would_ have used it if it
were available in C++, but since it is not, what i mean is that i do not
need to _reimplement_ all of it for my case: i already know what
required properties there are.

src/ReservationsPage.qml

@@ -80,9 +80,19 @@ Page {
             viewportX: ListView.view.contentX
 
             delegate: Rectangle {
+                id: booking
+
+                required property string holder
+
                 border.color: "black"
                 border.width: 1
-                color: "blue"
+                color: "lightblue"
+
+                Label {
+                    anchors.fill: parent
+                    elide: Text.ElideRight
+                    text: booking.holder
+                }
             }
         }
         header: Pane {

src/timelineview.cpp

@@ -167,16 +167,26 @@ void TimelineView::componentComplete()
     populate();
 }
 
-TimelineView::Item *TimelineView::createItem(qint64 day, qint64 len)
+TimelineView::Item *TimelineView::createItem(qint64 day, const TimelineModel::Item &modelItem)
 {
-    QQuickItem *item = m_reusableItems.isEmpty() ? qobject_cast<QQuickItem *>(m_delegate->create(
-                                                       m_delegate->creationContext()))
-                                                 : m_reusableItems.takeLast();
-    if (!item) {
-        qmlWarning(m_delegate) << TimelineView::tr("Delegate must be of Item type");
-        return nullptr;
+    QQuickItem *item;
+
+    if (m_reusableItems.isEmpty()) {
+        QVariantMap initialProperties{
+            {"holder", modelItem.holder},
+        };
+        item = qobject_cast<QQuickItem *>(
+            m_delegate->createWithInitialProperties(initialProperties,
+                                                    m_delegate->creationContext()));
+        if (!item) {
+            qmlWarning(m_delegate) << TimelineView::tr("Delegate must be of Item type");
+            return nullptr;
+        }
+    } else {
+        item = m_reusableItems.takeLast();
+        item->setProperty("holder", modelItem.holder);
     }
-    auto *viewItem = new TimelineView::Item(day, len, *item, *this);
+    auto *viewItem = new TimelineView::Item(day, modelItem.nights, *item, *this);
     return viewItem;
 }
 
@@ -235,7 +245,7 @@ void TimelineView::populate()
             if (!m_items.isEmpty() && m_items.first()->day <= day) {
                 continue;
             }
-            TimelineView::Item *viewItem = createItem(day, item->nights);
+            TimelineView::Item *viewItem = createItem(day, *item);
             if (!viewItem) {
                 break;
             }
@@ -263,7 +273,7 @@ void TimelineView::populate()
             if (!m_items.isEmpty() && m_items.last()->day >= day) {
                 continue;
             }
-            TimelineView::Item *viewItem = createItem(day, item->nights);
+            TimelineView::Item *viewItem = createItem(day, *item);
             if (!viewItem) {
                 break;
             }

src/timelineview.h

@@ -61,7 +61,7 @@ private:
 
     struct Item;
 
-    Item *createItem(qint64 day, qint64 len);
+    Item *createItem(qint64 day, const TimelineModel::Item &modelItem);
     void releaseItem(Item *item);
     void drainItems();