Designer: Fix source code scanning issues.

Fix spelling errors, foreach()/QString usage, explicit constructors.
Reviewed-By: Joerg Bornemann <joerg.bornemann@trolltech.com>

42 files changed, 63 insertions, 65 deletions

diff --git a/tools/designer/src/components/formeditor/qdesigner_resource.cpp b/tools/designer/src/components/formeditor/qdesigner_resource.cpp
index b005e42..b659179 100644
--- a/tools/designer/src/components/formeditor/qdesigner_resource.cpp
+++ b/tools/designer/src/components/formeditor/qdesigner_resource.cpp
@@ -1446,7 +1446,7 @@ void QDesignerResource::applyTabStops(QWidget *widget, DomTabStops *tabStops)
         return;
 
     QList<QWidget*> tabOrder;
-    foreach (QString widgetName, tabStops->elementTabStop()) {
+    foreach (const QString &widgetName, tabStops->elementTabStop()) {
         if (QWidget *w = qFindChild<QWidget*>(widget, widgetName)) {
             tabOrder.append(w);
         }
@@ -2418,7 +2418,7 @@ DomResources *QDesignerResource::saveResources(const QStringList &qrcPaths)
     QList<DomResource*> dom_include;
     if (resourceSet) {
         const QStringList activePaths = resourceSet->activeQrcPaths();
-        foreach (QString path, activePaths) {
+        foreach (const QString &path, activePaths) {
             if (qrcPaths.contains(path)) {
                 DomResource *dom_res = new DomResource;
                 QString conv_path = path;
diff --git a/tools/designer/src/components/propertyeditor/designerpropertymanager.h b/tools/designer/src/components/propertyeditor/designerpropertymanager.h
index 0ec5241..11f900b 100644
--- a/tools/designer/src/components/propertyeditor/designerpropertymanager.h
+++ b/tools/designer/src/components/propertyeditor/designerpropertymanager.h
@@ -102,7 +102,7 @@ class DesignerPropertyManager : public QtVariantPropertyManager
 {
     Q_OBJECT
 public:
-    DesignerPropertyManager(QDesignerFormEditorInterface *core, QObject *parent = 0);
+    explicit DesignerPropertyManager(QDesignerFormEditorInterface *core, QObject *parent = 0);
     ~DesignerPropertyManager();
 
     virtual QStringList attributes(int propertyType) const;
diff --git a/tools/designer/src/designer/qdesigner_actions.cpp b/tools/designer/src/designer/qdesigner_actions.cpp
index fbaf461..887ba98 100644
--- a/tools/designer/src/designer/qdesigner_actions.cpp
+++ b/tools/designer/src/designer/qdesigner_actions.cpp
@@ -580,7 +580,7 @@ bool QDesignerActions::openForm(QWidget *parent)
         return false;
 
     bool atLeastOne = false;
-    foreach (QString fileName, fileNames) {
+    foreach (const QString &fileName, fileNames) {
         if (readInForm(fileName) && !atLeastOne)
             atLeastOne = true;
     }
@@ -869,7 +869,7 @@ bool QDesignerActions::writeOutForm(QDesignerFormWindowInterface *fw, const QStr
             if (f.fileName() != fileName) {
                 removeBackup(backupFile);
                 fi.setFile(fileName);
-                backupFile = QString();
+                backupFile.clear();
                 if (fi.exists())
                     backupFile = createBackup(fileName);
             }
diff --git a/tools/designer/src/designer/qdesigner_server.cpp b/tools/designer/src/designer/qdesigner_server.cpp
index 8016dff..de1532c 100644
--- a/tools/designer/src/designer/qdesigner_server.cpp
+++ b/tools/designer/src/designer/qdesigner_server.cpp
@@ -83,7 +83,7 @@ void QDesignerServer::sendOpenRequest(int port, const QStringList &files)
     sSocket->connectToHost(QHostAddress::LocalHost, port);
     if(sSocket->waitForConnected(3000))
     {
-        foreach(QString file, files)
+        foreach(const QString &file, files)
         {
             QFileInfo fi(file);
             sSocket->write(fi.absoluteFilePath().toUtf8() + '\n');
@@ -96,9 +96,8 @@ void QDesignerServer::sendOpenRequest(int port, const QStringList &files)
 
 void QDesignerServer::readFromClient()
 {
-    QString file = QString();
     while (m_socket->canReadLine()) {
-        file = QString::fromUtf8(m_socket->readLine());
+        QString file = QString::fromUtf8(m_socket->readLine());
         if (!file.isNull()) {
             file.remove(QLatin1Char('\n'));
             file.remove(QLatin1Char('\r'));
@@ -143,7 +142,6 @@ QDesignerClient::~QDesignerClient()
 
 void QDesignerClient::readFromSocket()
 {
-    QString file = QString();
     while (m_socket->canReadLine()) {
         QString file = QString::fromUtf8(m_socket->readLine());
         if (!file.isNull()) {
diff --git a/tools/designer/src/designer/qdesigner_server.h b/tools/designer/src/designer/qdesigner_server.h
index 08bce68..d522056 100644
--- a/tools/designer/src/designer/qdesigner_server.h
+++ b/tools/designer/src/designer/qdesigner_server.h
@@ -53,7 +53,7 @@ class QDesignerServer: public QObject
 {
     Q_OBJECT
 public:
-    QDesignerServer(QObject *parent = 0);
+    explicit QDesignerServer(QObject *parent = 0);
     virtual ~QDesignerServer();
 
     quint16 serverPort() const;
diff --git a/tools/designer/src/lib/shared/actioneditor.cpp b/tools/designer/src/lib/shared/actioneditor.cpp
index 624b8bb..26ac8a8 100644
--- a/tools/designer/src/lib/shared/actioneditor.cpp
+++ b/tools/designer/src/lib/shared/actioneditor.cpp
@@ -428,7 +428,7 @@ void ActionEditor::unmanageAction(QAction *action)
         m_actionView->model()->remove(row);
 }
 
-// Set an intial property and mark it as changed in the sheet
+// Set an initial property and mark it as changed in the sheet
 static void setInitialProperty(QDesignerPropertySheetExtension *sheet, const QString &name, const QVariant &value)
 {
     const int index = sheet->indexOf(name);
diff --git a/tools/designer/src/lib/shared/actionrepository.cpp b/tools/designer/src/lib/shared/actionrepository.cpp
index 64cf9c4..e3ff2c1 100644
--- a/tools/designer/src/lib/shared/actionrepository.cpp
+++ b/tools/designer/src/lib/shared/actionrepository.cpp
@@ -244,7 +244,7 @@ QMimeData *ActionModel::mimeData(const QModelIndexList &indexes ) const
     ActionRepositoryMimeData::ActionList actionList;
 
     QSet<QAction*> actions;
-    foreach (const  QModelIndex &index, indexes)
+    foreach (const QModelIndex &index, indexes)
         if (QStandardItem *item = itemFromIndex(index))
             if (QAction *action = actionOfItem(item))
                 actions.insert(action);
diff --git a/tools/designer/src/lib/shared/connectionedit_p.h b/tools/designer/src/lib/shared/connectionedit_p.h
index 4f0148d..37dfe75 100644
--- a/tools/designer/src/lib/shared/connectionedit_p.h
+++ b/tools/designer/src/lib/shared/connectionedit_p.h
@@ -87,7 +87,7 @@ public:
     class EndPoint {
     public:
         enum Type { Source, Target };
-        EndPoint(Connection *_con = 0, Type _type = Source) : con(_con), type(_type) {}
+        explicit EndPoint(Connection *_con = 0, Type _type = Source) : con(_con), type(_type) {}
         bool isNull() const { return con == 0; }
         bool operator == (const EndPoint &other) const { return con == other.con && type == other.type; }
         bool operator != (const EndPoint &other) const { return !operator == (other); }
diff --git a/tools/designer/src/lib/shared/filterwidget_p.h b/tools/designer/src/lib/shared/filterwidget_p.h
index fdb199d..025d708 100644
--- a/tools/designer/src/lib/shared/filterwidget_p.h
+++ b/tools/designer/src/lib/shared/filterwidget_p.h
@@ -66,7 +66,7 @@ class QPushButton;
 namespace qdesigner_internal {
 
 /* A line edit that displays a grayed hintText (like "Type Here to Filter")
- * when not focussed and empty. When connecting to the changed signals and
+ * when not focused and empty. When connecting to the changed signals and
  * querying text, one has to be aware that the text is set to that hint
  * text if isShowingHintText() returns true (that is, does not contain
  * valid user input). This widget should never have initial focus
diff --git a/tools/designer/src/lib/shared/iconloader.cpp b/tools/designer/src/lib/shared/iconloader.cpp
index 2c97f62..df0bb7e 100644
--- a/tools/designer/src/lib/shared/iconloader.cpp
+++ b/tools/designer/src/lib/shared/iconloader.cpp
@@ -60,7 +60,7 @@ QDESIGNER_SHARED_EXPORT QIcon createIconSet(const QString &name)
 #endif
         << (QString::fromUtf8(":/trolltech/formeditor/images/designer_") + name);
 
-    foreach (QString f, candidates) {
+    foreach (const QString &f, candidates) {
         if (QFile::exists(f))
             return QIcon(f);
     }
diff --git a/tools/designer/src/lib/shared/iconselector_p.h b/tools/designer/src/lib/shared/iconselector_p.h
index 63d4ad7..3373f80 100644
--- a/tools/designer/src/lib/shared/iconselector_p.h
+++ b/tools/designer/src/lib/shared/iconselector_p.h
@@ -76,7 +76,7 @@ class QDESIGNER_SHARED_EXPORT LanguageResourceDialog : public QDialog
 {
     Q_OBJECT
 
-    LanguageResourceDialog(QDesignerResourceBrowserInterface *rb, QWidget *parent = 0);
+    explicit LanguageResourceDialog(QDesignerResourceBrowserInterface *rb, QWidget *parent = 0);
 
 public:
     virtual ~LanguageResourceDialog();
diff --git a/tools/designer/src/lib/shared/plugindialog.cpp b/tools/designer/src/lib/shared/plugindialog.cpp
index c79dcf2..3e88043 100644
--- a/tools/designer/src/lib/shared/plugindialog.cpp
+++ b/tools/designer/src/lib/shared/plugindialog.cpp
@@ -105,7 +105,7 @@ void PluginDialog::populateTreeWidget()
         QTreeWidgetItem *topLevelItem = setTopLevelItem(QLatin1String("Loaded Plugins"));
         QFont boldFont = topLevelItem->font(0);
 
-        foreach (QString fileName, fileNames) {
+        foreach (const QString &fileName, fileNames) {
             QPluginLoader loader(fileName);
             const QFileInfo fileInfo(fileName);
 
@@ -127,7 +127,7 @@ void PluginDialog::populateTreeWidget()
     if (!notLoadedPlugins.isEmpty()) {
         QTreeWidgetItem *topLevelItem = setTopLevelItem(QLatin1String("Failed Plugins"));
         const QFont boldFont = topLevelItem->font(0);
-        foreach (const QString plugin, notLoadedPlugins) {
+        foreach (const QString &plugin, notLoadedPlugins) {
             const QString failureReason = pluginManager->failureReason(plugin);
             QTreeWidgetItem *pluginItem = setPluginItem(topLevelItem, plugin, boldFont);
             setItem(pluginItem, failureReason, failureReason, QString(), QIcon());
diff --git a/tools/designer/src/lib/shared/qdesigner_introspection.cpp b/tools/designer/src/lib/shared/qdesigner_introspection.cpp
index 170a111..7bc60d4 100644
--- a/tools/designer/src/lib/shared/qdesigner_introspection.cpp
+++ b/tools/designer/src/lib/shared/qdesigner_introspection.cpp
@@ -63,7 +63,7 @@ static QStringList byteArrayListToStringList(const QList<QByteArray> &l)
 static inline QString charToQString(const char *c)
 {
     if (!c)
-        return QString::null;
+        return QString();
     return QString::fromUtf8(c);
 }
 
diff --git a/tools/designer/src/lib/shared/qdesigner_objectinspector_p.h b/tools/designer/src/lib/shared/qdesigner_objectinspector_p.h
index 354ef2a..f4b6672 100644
--- a/tools/designer/src/lib/shared/qdesigner_objectinspector_p.h
+++ b/tools/designer/src/lib/shared/qdesigner_objectinspector_p.h
@@ -85,7 +85,7 @@ class QDESIGNER_SHARED_EXPORT QDesignerObjectInspector: public QDesignerObjectIn
 {
     Q_OBJECT
 public:
-    QDesignerObjectInspector(QWidget *parent = 0, Qt::WindowFlags flags = 0);
+    explicit QDesignerObjectInspector(QWidget *parent = 0, Qt::WindowFlags flags = 0);
 
     // Select a qobject unmanaged by form window
     virtual bool selectObject(QObject *o) = 0;
diff --git a/tools/designer/src/lib/shared/qdesigner_promotiondialog_p.h b/tools/designer/src/lib/shared/qdesigner_promotiondialog_p.h
index d1e407d..1e63d81 100644
--- a/tools/designer/src/lib/shared/qdesigner_promotiondialog_p.h
+++ b/tools/designer/src/lib/shared/qdesigner_promotiondialog_p.h
@@ -80,9 +80,9 @@ namespace qdesigner_internal {
     class NewPromotedClassPanel : public QGroupBox {
         Q_OBJECT
     public:
-        NewPromotedClassPanel(const QStringList &baseClasses,
-                              int selectedBaseClass = -1,
-                               QWidget *parent = 0);
+        explicit NewPromotedClassPanel(const QStringList &baseClasses,
+                                       int selectedBaseClass = -1,
+                                       QWidget *parent = 0);
 
         signals:
         void newPromotedClass(const PromotionParameters &, bool *ok);
@@ -114,10 +114,10 @@ namespace qdesigner_internal {
     public:
         enum Mode { ModeEdit, ModeEditChooseClass };
 
-        QDesignerPromotionDialog(QDesignerFormEditorInterface *core,
-                                 QWidget *parent = 0,
-                                 const QString &promotableWidgetClassName = QString(),
-                                 QString *promoteTo = 0);
+        explicit QDesignerPromotionDialog(QDesignerFormEditorInterface *core,
+                                          QWidget *parent = 0,
+                                          const QString &promotableWidgetClassName = QString(),
+                                          QString *promoteTo = 0);
         // Return an alphabetically ordered list of base class names for adding new classes.
         static const QStringList &baseClassNames(const QDesignerPromotionInterface *promotion);
 
diff --git a/tools/designer/src/lib/shared/qdesigner_propertyeditor_p.h b/tools/designer/src/lib/shared/qdesigner_propertyeditor_p.h
index c618bd7..cdd53f0 100644
--- a/tools/designer/src/lib/shared/qdesigner_propertyeditor_p.h
+++ b/tools/designer/src/lib/shared/qdesigner_propertyeditor_p.h
@@ -69,7 +69,7 @@ class QDESIGNER_SHARED_EXPORT QDesignerPropertyEditor: public QDesignerPropertyE
 {
     Q_OBJECT
 public:
-    QDesignerPropertyEditor(QWidget *parent = 0, Qt::WindowFlags flags = 0);
+    explicit QDesignerPropertyEditor(QWidget *parent = 0, Qt::WindowFlags flags = 0);
 
     // A pair <ValidationMode, bool isTranslatable>.
     typedef QPair<TextPropertyValidationMode, bool> StringPropertyParameters;
diff --git a/tools/designer/src/lib/shared/qdesigner_toolbar.cpp b/tools/designer/src/lib/shared/qdesigner_toolbar.cpp
index 1cee074..02a2f6d 100644
--- a/tools/designer/src/lib/shared/qdesigner_toolbar.cpp
+++ b/tools/designer/src/lib/shared/qdesigner_toolbar.cpp
@@ -440,7 +440,7 @@ QAction *ToolBarEventFilter::actionAt(const QToolBar *tb, const QPoint &pos)
     return tb->actions().at(index);
 }
 
-//that's a trick to get acces to the initStyleOption which is a protected member
+//that's a trick to get access to the initStyleOption which is a protected member
 class FriendlyToolBar : public QToolBar {
 public:
     friend class ToolBarEventFilter;
diff --git a/tools/designer/src/lib/shared/qdesigner_utils_p.h b/tools/designer/src/lib/shared/qdesigner_utils_p.h
index 502703d..fac0697 100644
--- a/tools/designer/src/lib/shared/qdesigner_utils_p.h
+++ b/tools/designer/src/lib/shared/qdesigner_utils_p.h
@@ -298,7 +298,7 @@ class QDESIGNER_SHARED_EXPORT DesignerIconCache : public QObject
 {
     Q_OBJECT
 public:
-    DesignerIconCache(DesignerPixmapCache *pixmapCache, QObject *parent = 0);
+    explicit DesignerIconCache(DesignerPixmapCache *pixmapCache, QObject *parent = 0);
     QIcon icon(const PropertySheetIconValue &value) const;
     void clear();
 signals:
@@ -313,7 +313,7 @@ private:
 class QDESIGNER_SHARED_EXPORT PropertySheetStringValue
 {
 public:
-    PropertySheetStringValue(const QString &value = QString(),
+    explicit PropertySheetStringValue(const QString &value = QString(),
                              bool translatable = true,
                              const QString &disambiguation = QString(),
                              const QString &comment = QString());
@@ -345,11 +345,11 @@ private:
 class QDESIGNER_SHARED_EXPORT PropertySheetKeySequenceValue
 {
 public:
-    PropertySheetKeySequenceValue(const QKeySequence &value = QKeySequence(),
+    explicit PropertySheetKeySequenceValue(const QKeySequence &value = QKeySequence(),
                                   bool translatable = true,
                                   const QString &disambiguation = QString(),
                                   const QString &comment = QString());
-    PropertySheetKeySequenceValue(const QKeySequence::StandardKey &standardKey,
+    explicit PropertySheetKeySequenceValue(const QKeySequence::StandardKey &standardKey,
                                   bool translatable = true,
                                   const QString &disambiguation = QString(),
                                   const QString &comment = QString());
diff --git a/tools/designer/src/lib/shared/qdesigner_widgetbox_p.h b/tools/designer/src/lib/shared/qdesigner_widgetbox_p.h
index cf944b9..13b7f74 100644
--- a/tools/designer/src/lib/shared/qdesigner_widgetbox_p.h
+++ b/tools/designer/src/lib/shared/qdesigner_widgetbox_p.h
@@ -70,7 +70,7 @@ class QDESIGNER_SHARED_EXPORT QDesignerWidgetBox : public QDesignerWidgetBoxInte
 public:
     enum LoadMode { LoadMerge, LoadReplace, LoadCustomWidgetsOnly };
 
-    QDesignerWidgetBox(QWidget *parent = 0, Qt::WindowFlags flags = 0);
+    explicit QDesignerWidgetBox(QWidget *parent = 0, Qt::WindowFlags flags = 0);
 
     LoadMode loadMode() const;
     void setLoadMode(LoadMode lm);
diff --git a/tools/designer/src/lib/shared/qtresourceview_p.h b/tools/designer/src/lib/shared/qtresourceview_p.h
index 26c4754..8da2975 100644
--- a/tools/designer/src/lib/shared/qtresourceview_p.h
+++ b/tools/designer/src/lib/shared/qtresourceview_p.h
@@ -68,7 +68,7 @@ class QDESIGNER_SHARED_EXPORT QtResourceView : public QWidget
 {
     Q_OBJECT
 public:
-    QtResourceView(QDesignerFormEditorInterface *core, QWidget *parent = 0);
+    explicit QtResourceView(QDesignerFormEditorInterface *core, QWidget *parent = 0);
     ~QtResourceView();
 
     void setDragEnabled(bool dragEnabled);
@@ -120,7 +120,7 @@ class QDESIGNER_SHARED_EXPORT  QtResourceViewDialog : public QDialog
 {
     Q_OBJECT
 public:
-    QtResourceViewDialog(QDesignerFormEditorInterface *core, QWidget *parent = 0);
+    explicit QtResourceViewDialog(QDesignerFormEditorInterface *core, QWidget *parent = 0);
     virtual ~QtResourceViewDialog();
 
     QString selectedResource() const;
diff --git a/tools/designer/src/lib/shared/richtexteditor_p.h b/tools/designer/src/lib/shared/richtexteditor_p.h
index 4157d2c..44023ef 100644
--- a/tools/designer/src/lib/shared/richtexteditor_p.h
+++ b/tools/designer/src/lib/shared/richtexteditor_p.h
@@ -72,7 +72,7 @@ class QDESIGNER_SHARED_EXPORT RichTextEditorDialog : public QDialog
 {
     Q_OBJECT
 public:
-    RichTextEditorDialog(QDesignerFormEditorInterface *core, QWidget *parent = 0);
+    explicit RichTextEditorDialog(QDesignerFormEditorInterface *core, QWidget *parent = 0);
     ~RichTextEditorDialog();
 
     int showDialog();
diff --git a/tools/designer/src/lib/shared/shared_settings.cpp b/tools/designer/src/lib/shared/shared_settings.cpp
index d6fd4bc..281b5c6 100644
--- a/tools/designer/src/lib/shared/shared_settings.cpp
+++ b/tools/designer/src/lib/shared/shared_settings.cpp
@@ -161,7 +161,7 @@ QStringList QDesignerSharedSettings::additionalFormTemplatePaths() const
 {
     // get template paths excluding internal ones
     QStringList rc = formTemplatePaths();
-    foreach (QString internalTemplatePath, defaultFormTemplatePaths()) {
+    foreach (const QString &internalTemplatePath, defaultFormTemplatePaths()) {
         const int index = rc.indexOf(internalTemplatePath);
         if (index != -1)
             rc.removeAt(index);
diff --git a/tools/designer/src/lib/shared/textpropertyeditor_p.h b/tools/designer/src/lib/shared/textpropertyeditor_p.h
index 5b913ac..48f7898 100644
--- a/tools/designer/src/lib/shared/textpropertyeditor_p.h
+++ b/tools/designer/src/lib/shared/textpropertyeditor_p.h
@@ -90,7 +90,7 @@ namespace qdesigner_internal {
             UpdateOnFinished
         };
 
-        TextPropertyEditor(QWidget *parent = 0, EmbeddingMode embeddingMode = EmbeddingNone, TextPropertyValidationMode validationMode = ValidationMultiLine);
+        explicit TextPropertyEditor(QWidget *parent = 0, EmbeddingMode embeddingMode = EmbeddingNone, TextPropertyValidationMode validationMode = ValidationMultiLine);
 
         TextPropertyValidationMode textPropertyValidationMode() const { return m_validationMode; }
         void setTextPropertyValidationMode(TextPropertyValidationMode vm);
diff --git a/tools/designer/src/lib/shared/widgetdatabase_p.h b/tools/designer/src/lib/shared/widgetdatabase_p.h
index 0e99999..873e79b 100644
--- a/tools/designer/src/lib/shared/widgetdatabase_p.h
+++ b/tools/designer/src/lib/shared/widgetdatabase_p.h
@@ -74,8 +74,8 @@ namespace qdesigner_internal {
 class QDESIGNER_SHARED_EXPORT WidgetDataBaseItem: public QDesignerWidgetDataBaseItemInterface
 {
 public:
-    WidgetDataBaseItem(const QString &name = QString(),
-                       const QString &group = QString());
+    explicit WidgetDataBaseItem(const QString &name = QString(),
+                                const QString &group = QString());
 
     QString name() const;
     void setName(const QString &name);
@@ -159,7 +159,7 @@ class QDESIGNER_SHARED_EXPORT WidgetDataBase: public QDesignerWidgetDataBaseInte
 {
     Q_OBJECT
 public:
-    WidgetDataBase(QDesignerFormEditorInterface *core, QObject *parent = 0);
+    explicit WidgetDataBase(QDesignerFormEditorInterface *core, QObject *parent = 0);
     virtual ~WidgetDataBase();
 
     virtual QDesignerFormEditorInterface *core() const;
diff --git a/tools/designer/src/lib/uilib/abstractformbuilder.cpp b/tools/designer/src/lib/uilib/abstractformbuilder.cpp
index 1d2d6f8..a0c9e83 100644
--- a/tools/designer/src/lib/uilib/abstractformbuilder.cpp
+++ b/tools/designer/src/lib/uilib/abstractformbuilder.cpp
@@ -364,7 +364,7 @@ QWidget *QAbstractFormBuilder::create(DomWidget *ui_widget, QWidget *parentWidge
     const QStringList zOrderNames = ui_widget->elementZOrder();
     if (!zOrderNames.isEmpty()) {
         QList<QWidget *> zOrder = qVariantValue<QWidgetList>(w->property("_q_zOrder"));
-        foreach (QString widgetName, zOrderNames) {
+        foreach (const QString &widgetName, zOrderNames) {
             if (QWidget *child = qFindChild<QWidget*>(w, widgetName)) {
                 if (child->parentWidget() == w) {
                     zOrder.removeAll(child);
diff --git a/tools/designer/src/lib/uilib/formbuilder.cpp b/tools/designer/src/lib/uilib/formbuilder.cpp
index cc8483f..c97daac 100644
--- a/tools/designer/src/lib/uilib/formbuilder.cpp
+++ b/tools/designer/src/lib/uilib/formbuilder.cpp
@@ -494,7 +494,7 @@ void QFormBuilder::updateCustomWidgets()
 {
     m_customWidgets.clear();
 
-    foreach (QString path, m_pluginPaths) {
+    foreach (const QString &path, m_pluginPaths) {
         const QDir dir(path);
         const QStringList candidates = dir.entryList(QDir::Files);
 
diff --git a/tools/designer/src/plugins/activeqt/qaxwidgetextrainfo.h b/tools/designer/src/plugins/activeqt/qaxwidgetextrainfo.h
index c48449c..9f3c252 100644
--- a/tools/designer/src/plugins/activeqt/qaxwidgetextrainfo.h
+++ b/tools/designer/src/plugins/activeqt/qaxwidgetextrainfo.h
@@ -77,7 +77,7 @@ class QAxWidgetExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    QAxWidgetExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit QAxWidgetExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/activeqt/qdesigneraxwidget.h b/tools/designer/src/plugins/activeqt/qdesigneraxwidget.h
index 1308fe2..50132a6 100644
--- a/tools/designer/src/plugins/activeqt/qdesigneraxwidget.h
+++ b/tools/designer/src/plugins/activeqt/qdesigneraxwidget.h
@@ -105,7 +105,7 @@ private:
 
 class QDesignerAxPluginWidget : public QDesignerAxWidget
 {
-   // No Q_OBJECT here! - meta functionality is overriden
+   // No Q_OBJECT here! - meta functionality is overridden
 public:
     explicit QDesignerAxPluginWidget(QWidget *parent);
     virtual ~QDesignerAxPluginWidget();
diff --git a/tools/designer/src/plugins/widgets/q3iconview/q3iconview_extrainfo.h b/tools/designer/src/plugins/widgets/q3iconview/q3iconview_extrainfo.h
index 49a8a40..4f2b3b2 100644
--- a/tools/designer/src/plugins/widgets/q3iconview/q3iconview_extrainfo.h
+++ b/tools/designer/src/plugins/widgets/q3iconview/q3iconview_extrainfo.h
@@ -81,7 +81,7 @@ class Q3IconViewExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    Q3IconViewExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit Q3IconViewExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/widgets/q3iconview/q3iconview_plugin.h b/tools/designer/src/plugins/widgets/q3iconview/q3iconview_plugin.h
index 19213d8..e20e344 100644
--- a/tools/designer/src/plugins/widgets/q3iconview/q3iconview_plugin.h
+++ b/tools/designer/src/plugins/widgets/q3iconview/q3iconview_plugin.h
@@ -51,7 +51,7 @@ class Q3IconViewPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3IconViewPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3IconViewPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
diff --git a/tools/designer/src/plugins/widgets/q3listbox/q3listbox_extrainfo.h b/tools/designer/src/plugins/widgets/q3listbox/q3listbox_extrainfo.h
index 7e291b6..bfb6738 100644
--- a/tools/designer/src/plugins/widgets/q3listbox/q3listbox_extrainfo.h
+++ b/tools/designer/src/plugins/widgets/q3listbox/q3listbox_extrainfo.h
@@ -79,7 +79,7 @@ class Q3ListBoxExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    Q3ListBoxExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit Q3ListBoxExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/widgets/q3listbox/q3listbox_plugin.h b/tools/designer/src/plugins/widgets/q3listbox/q3listbox_plugin.h
index 66002f5..68d6913 100644
--- a/tools/designer/src/plugins/widgets/q3listbox/q3listbox_plugin.h
+++ b/tools/designer/src/plugins/widgets/q3listbox/q3listbox_plugin.h
@@ -51,7 +51,7 @@ class Q3ListBoxPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3ListBoxPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3ListBoxPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
diff --git a/tools/designer/src/plugins/widgets/q3listview/q3listview_extrainfo.h b/tools/designer/src/plugins/widgets/q3listview/q3listview_extrainfo.h
index f14f256..e5222ed 100644
--- a/tools/designer/src/plugins/widgets/q3listview/q3listview_extrainfo.h
+++ b/tools/designer/src/plugins/widgets/q3listview/q3listview_extrainfo.h
@@ -82,7 +82,7 @@ class Q3ListViewExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    Q3ListViewExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit Q3ListViewExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/widgets/q3listview/q3listview_plugin.h b/tools/designer/src/plugins/widgets/q3listview/q3listview_plugin.h
index 7127a57..f9c82a2 100644
--- a/tools/designer/src/plugins/widgets/q3listview/q3listview_plugin.h
+++ b/tools/designer/src/plugins/widgets/q3listview/q3listview_plugin.h
@@ -51,7 +51,7 @@ class Q3ListViewPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3ListViewPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3ListViewPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
diff --git a/tools/designer/src/plugins/widgets/q3mainwindow/q3mainwindow_plugin.h b/tools/designer/src/plugins/widgets/q3mainwindow/q3mainwindow_plugin.h
index de2a75e..4ac7daa 100644
--- a/tools/designer/src/plugins/widgets/q3mainwindow/q3mainwindow_plugin.h
+++ b/tools/designer/src/plugins/widgets/q3mainwindow/q3mainwindow_plugin.h
@@ -51,7 +51,7 @@ class Q3MainWindowPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3MainWindowPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3MainWindowPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
diff --git a/tools/designer/src/plugins/widgets/q3table/q3table_extrainfo.h b/tools/designer/src/plugins/widgets/q3table/q3table_extrainfo.h
index 40222bd..4de8b71 100644
--- a/tools/designer/src/plugins/widgets/q3table/q3table_extrainfo.h
+++ b/tools/designer/src/plugins/widgets/q3table/q3table_extrainfo.h
@@ -79,7 +79,7 @@ class Q3TableExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    Q3TableExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit Q3TableExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/widgets/q3textedit/q3textedit_extrainfo.h b/tools/designer/src/plugins/widgets/q3textedit/q3textedit_extrainfo.h
index 94f663a..beeaf3b 100644
--- a/tools/designer/src/plugins/widgets/q3textedit/q3textedit_extrainfo.h
+++ b/tools/designer/src/plugins/widgets/q3textedit/q3textedit_extrainfo.h
@@ -79,7 +79,7 @@ class Q3TextEditExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    Q3TextEditExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit Q3TextEditExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/widgets/q3textedit/q3textedit_plugin.h b/tools/designer/src/plugins/widgets/q3textedit/q3textedit_plugin.h
index 28e0386..77bfb58 100644
--- a/tools/designer/src/plugins/widgets/q3textedit/q3textedit_plugin.h
+++ b/tools/designer/src/plugins/widgets/q3textedit/q3textedit_plugin.h
@@ -51,7 +51,7 @@ class Q3TextEditPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3TextEditPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3TextEditPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
diff --git a/tools/designer/src/plugins/widgets/q3toolbar/q3toolbar_extrainfo.h b/tools/designer/src/plugins/widgets/q3toolbar/q3toolbar_extrainfo.h
index f3ed995..22562b1 100644
--- a/tools/designer/src/plugins/widgets/q3toolbar/q3toolbar_extrainfo.h
+++ b/tools/designer/src/plugins/widgets/q3toolbar/q3toolbar_extrainfo.h
@@ -78,7 +78,7 @@ class Q3ToolBarExtraInfoFactory: public QExtensionFactory
 {
     Q_OBJECT
 public:
-    Q3ToolBarExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
+    explicit Q3ToolBarExtraInfoFactory(QDesignerFormEditorInterface *core, QExtensionManager *parent = 0);
 
 protected:
     virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
diff --git a/tools/designer/src/plugins/widgets/q3widgets/q3widget_plugins.h b/tools/designer/src/plugins/widgets/q3widgets/q3widget_plugins.h
index c79390c..c750cfe 100644
--- a/tools/designer/src/plugins/widgets/q3widgets/q3widget_plugins.h
+++ b/tools/designer/src/plugins/widgets/q3widgets/q3widget_plugins.h
@@ -51,7 +51,7 @@ class Q3ButtonGroupPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3ButtonGroupPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3ButtonGroupPlugin(const QIcon &icon, QObject *parent = 0);
     virtual ~Q3ButtonGroupPlugin();
 
     virtual QString name() const;
@@ -80,7 +80,7 @@ class Q3ComboBoxPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3ComboBoxPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3ComboBoxPlugin(const QIcon &icon, QObject *parent = 0);
     virtual ~Q3ComboBoxPlugin();
 
     virtual QString name() const;
@@ -109,7 +109,7 @@ class Q3DateEditPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3DateEditPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3DateEditPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
@@ -157,7 +157,7 @@ class Q3FramePlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3FramePlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3FramePlugin(const QIcon &icon, QObject *parent = 0);
     virtual ~Q3FramePlugin();
 
     virtual QString name() const;
@@ -215,7 +215,7 @@ class Q3ProgressBarPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3ProgressBarPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3ProgressBarPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
@@ -263,7 +263,7 @@ class Q3TimeEditPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3TimeEditPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3TimeEditPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;
diff --git a/tools/designer/src/plugins/widgets/q3wizard/q3wizard_container.h b/tools/designer/src/plugins/widgets/q3wizard/q3wizard_container.h
index 524f3fd..e8cf4fa 100644
--- a/tools/designer/src/plugins/widgets/q3wizard/q3wizard_container.h
+++ b/tools/designer/src/plugins/widgets/q3wizard/q3wizard_container.h
@@ -59,7 +59,7 @@ class Q3WizardHelper : public QObject
 {
     Q_OBJECT
 public:
-    Q3WizardHelper(Q3Wizard *wizard);
+    explicit Q3WizardHelper(Q3Wizard *wizard);
 private slots:
     void slotCurrentChanged();
 private:
diff --git a/tools/designer/src/plugins/widgets/q3wizard/q3wizard_plugin.h b/tools/designer/src/plugins/widgets/q3wizard/q3wizard_plugin.h
index 1837769..c9fff40 100644
--- a/tools/designer/src/plugins/widgets/q3wizard/q3wizard_plugin.h
+++ b/tools/designer/src/plugins/widgets/q3wizard/q3wizard_plugin.h
@@ -51,7 +51,7 @@ class Q3WizardPlugin: public QObject, public QDesignerCustomWidgetInterface
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 public:
-    Q3WizardPlugin(const QIcon &icon, QObject *parent = 0);
+    explicit Q3WizardPlugin(const QIcon &icon, QObject *parent = 0);
 
     virtual QString name() const;
     virtual QString group() const;