BaseQtVersion: Rename isInSourceDirectory to isSubProject and fix it

The source and examples directory is not a sub directory of the qt
source directory in the sdks. But we still want to treat it as part
of a the matching qt.

Task-number: QTCREATORBUG-13469
Change-Id: Ib63722052a14c29e4198c879dd770fb4ecdcdb80
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/qmakeprojectmanager/qmakebuildconfiguration.cpp

@@ -651,7 +651,7 @@ QmakeBuildInfo *QmakeBuildConfigurationFactory::createBuildInfo(const Kit *k,
 
     // check if this project is in the source directory:
     Utils::FileName projectFilePath = Utils::FileName::fromString(projectPath);
-    if (version->isInSourceDirectory(projectFilePath)) {
+    if (version->isSubProject(projectFilePath)) {
         // assemble build directory
         QString projectDirectory = projectFilePath.toFileInfo().absolutePath();
         QDir qtSourceDir = QDir(version->sourcePath().toString());

src/plugins/qmakeprojectmanager/qmakeproject.cpp

@@ -1628,7 +1628,7 @@ bool QmakeProject::matchesKit(const Kit *kit)
     QList<QtSupport::BaseQtVersion *> parentQts;
     Utils::FileName filePath = projectFilePath();
     foreach (QtSupport::BaseQtVersion *version, QtSupport::QtVersionManager::validVersions()) {
-        if (version->isInSourceDirectory(filePath))
+        if (version->isSubProject(filePath))
             parentQts.append(version);
     }
 

src/plugins/qtsupport/baseqtversion.cpp

@@ -1478,16 +1478,27 @@ FileName BaseQtVersion::sourcePath(const QHash<QString, QString> &versionInfo)
     return FileName::fromUserInput(sourcePath);
 }
 
-bool BaseQtVersion::isInSourceDirectory(const Utils::FileName &filePath)
+bool BaseQtVersion::isSubProject(const Utils::FileName &filePath)
 {
     const Utils::FileName &source = sourcePath();
-    if (source.isEmpty())
+    if (!source.isEmpty()) {
-        return false;
         QDir dir = QDir(source.toString());
         if (dir.dirName() == QLatin1String("qtbase"))
             dir.cdUp();
 
-    return filePath.isChildOf(dir);
+        if (filePath.isChildOf(dir))
+            return true;
+    }
+
+    const QString &examples = examplesPath();
+    if (!examples.isEmpty() && filePath.isChildOf(QDir(examples)))
+        return true;
+
+    const QString &demos = demosPath();
+    if (!demos.isEmpty() && filePath.isChildOf(QDir(demos)))
+        return true;
+
+    return false;
 }
 
 bool BaseQtVersion::isQmlDebuggingSupported(Kit *k, QString *reason)

src/plugins/qtsupport/baseqtversion.h

@@ -124,7 +124,7 @@ public:
     virtual Utils::Environment qmakeRunEnvironment() const;
 
     virtual Utils::FileName sourcePath() const;
-    bool isInSourceDirectory(const Utils::FileName &filePath);
+    bool isSubProject(const Utils::FileName &filePath);
 
     // used by UiCodeModelSupport
     virtual QString uicCommand() const;