Welcompage: allow highlighting of demos and examples

With this patch the attribute isHighlighted="true" in
the manifest.xml allows highlighting demos and examples.

The highlighted demos and examples appear first in the list
and have a blue highlight.

Task-number: QTCREATORBUG-8459
Change-Id: Ieeb888630235e07b1ae1398c5ccdc3d7e8d15dff
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>

share/qtcreator/welcomescreen/widgets/Delegate.qml

@@ -35,6 +35,18 @@ Rectangle {
     height: 240
     width: 216
 
+    Rectangle {
+        id: highlight
+        radius: 6
+        visible: isHighlighted
+        color: colors.strongForegroundColor
+        anchors.fill: parent
+        anchors.topMargin: 2
+        anchors.leftMargin: 4
+        anchors.rightMargin: 4
+        anchors.bottomMargin: 73
+    }
+
     property alias caption: captionItem.text
     property alias imageSource: imageItem.source
     property alias videoSource: videoIcon.source
@@ -201,11 +213,11 @@ Rectangle {
     Rectangle {
         id: border
         color: "#00000000"
-        radius: 8
+        radius: 6
         anchors.rightMargin: 4
         anchors.leftMargin: 4
         anchors.bottomMargin: 4
-        anchors.topMargin: 4
+        anchors.topMargin: 1
         visible: false
         anchors.fill: parent
         border.color: "#dddcdc"
@@ -276,6 +288,11 @@ Rectangle {
                 target: border
                 visible: true
             }
+
+            PropertyChanges {
+                target: highlight
+                opacity: 0
+            }
         }
     ]
 

src/plugins/qtsupport/exampleslistmodel.cpp

@@ -167,6 +167,7 @@ ExamplesListModel::ExamplesListModel(QObject *parent) :
     roleNames[VideoUrl] = "videoUrl";
     roleNames[VideoLength] = "videoLength";
     roleNames[Platforms] = "platforms";
+    roleNames[IsHighlighted] = "isHighlighted";
     setRoleNames(roleNames);
 
     connect(Core::HelpManager::instance(), SIGNAL(setupFinished()),
@@ -261,6 +262,10 @@ void ExamplesListModel::parseExamples(QXmlStreamReader *reader,
                 item.projectPath = relativeOrInstallPath(item.projectPath, projectsOffset, examplesInstallPath);
                 item.imageUrl = attributes.value(QLatin1String("imageUrl")).toString();
                 item.docUrl = attributes.value(QLatin1String("docUrl")).toString();
+
+                if (attributes.hasAttribute(QLatin1String("isHighlighted")))
+                    item.isHighlighted = attributes.value(QLatin1String("isHighlighted")).toString() == QLatin1String("true");
+
             } else if (reader->name() == QLatin1String("fileToOpen")) {
                 item.filesToOpen.append(relativeOrInstallPath(reader->readElementText(QXmlStreamReader::ErrorOnUnexpectedElement),
                                                               projectsOffset, examplesInstallPath));
@@ -307,6 +312,10 @@ void ExamplesListModel::parseDemos(QXmlStreamReader *reader,
                 item.projectPath = relativeOrInstallPath(item.projectPath, projectsOffset, demosInstallPath);
                 item.imageUrl = attributes.value(QLatin1String("imageUrl")).toString();
                 item.docUrl = attributes.value(QLatin1String("docUrl")).toString();
+
+                if (attributes.hasAttribute(QLatin1String("isHighlighted")))
+                    item.isHighlighted = attributes.value(QLatin1String("isHighlighted")).toString() == QLatin1String("true");
+
             } else if (reader->name() == QLatin1String("fileToOpen")) {
                 item.filesToOpen.append(relativeOrInstallPath(reader->readElementText(QXmlStreamReader::ErrorOnUnexpectedElement),
                                                               projectsOffset, demosInstallPath));
@@ -578,6 +587,13 @@ int ExamplesListModel::rowCount(const QModelIndex &) const
     return m_exampleItems.size();
 }
 
+QString prefixForItem(const ExampleItem &item)
+{
+    if (item.isHighlighted)
+        return QLatin1String("0000 ");
+    return QString();
+}
+
 QVariant ExamplesListModel::data(const QModelIndex &index, int role) const
 {
     ensureInitialized();
@@ -590,7 +606,7 @@ QVariant ExamplesListModel::data(const QModelIndex &index, int role) const
     switch (role)
     {
     case Qt::DisplayRole: // for search only
-        return QString(item.name + QLatin1Char(' ') + item.tags.join(QLatin1String(" ")));
+        return QString(prefixForItem(item) + item.name + QLatin1Char(' ') + item.tags.join(QLatin1String(" ")));
     case Name:
         return item.name;
     case ProjectPath:
@@ -621,6 +637,8 @@ QVariant ExamplesListModel::data(const QModelIndex &index, int role) const
         return item.videoLength;
     case Platforms:
         return item.platforms;
+    case IsHighlighted:
+        return item.isHighlighted;
     default:
         qDebug() << Q_FUNC_INFO << "role type not supported";
         return QVariant();

src/plugins/qtsupport/exampleslistmodel.h

@@ -44,7 +44,8 @@ enum ExampleRoles
 {
     Name = Qt::UserRole, ProjectPath, Description, ImageUrl,
     DocUrl, FilesToOpen, Tags, Difficulty, HasSourceCode,
-    Type, Dependencies, IsVideo, VideoUrl, VideoLength, Platforms
+    Type, Dependencies, IsVideo, VideoUrl, VideoLength, Platforms,
+    IsHighlighted
 };
 
 enum InstructionalType
@@ -54,7 +55,7 @@ enum InstructionalType
 
 struct ExampleItem
 {
-    ExampleItem(): difficulty(0), isVideo(false) {}
+    ExampleItem(): difficulty(0), isVideo(false), isHighlighted(false) {}
     InstructionalType type;
     QString name;
     QString projectPath;
@@ -70,6 +71,7 @@ struct ExampleItem
     QString videoUrl;
     QString videoLength;
     QStringList platforms;
+    bool isHighlighted;
 };
 
 class ExamplesListModel : public QAbstractListModel