Mark most ctors as explicit as reported by Krazy2 checker

bridge.h

@@ -31,7 +31,7 @@ class Client;
 class Bridge : public KDecorationBridgeUnstable
 {
 public:
-    Bridge(Client* cl);
+    explicit Bridge(Client* cl);
     virtual bool isActive() const;
     virtual bool isCloseable() const;
     virtual bool isMaximizable() const;

client.h

@@ -281,7 +281,7 @@ class Client
      **/
     Q_PROPERTY(bool decorationHasAlpha READ decorationHasAlpha)
 public:
-    Client(Workspace* ws);
+    explicit Client(Workspace* ws);
     Window wrapperId() const;
     Window decorationId() const;
     Window inputId() const { return input_window; }
@@ -1002,7 +1002,7 @@ private:
 class GeometryUpdatesBlocker
 {
 public:
-    GeometryUpdatesBlocker(Client* c)
+    explicit GeometryUpdatesBlocker(Client* c)
         : cl(c) {
         cl->blockGeometryUpdates(true);
     }

clients/aurorae/src/colorhelper.h

@@ -36,7 +36,7 @@ class ColorHelper : public QObject
      **/
     Q_PROPERTY(qreal contrast READ contrast CONSTANT)
 public:
-    ColorHelper(QObject *parent = 0);
+    explicit ColorHelper(QObject *parent = 0);
     ~ColorHelper();
     /**
      * This enumeration describes the color shade being selected from the given

clients/aurorae/src/lib/auroraetheme.h

@@ -110,7 +110,7 @@ class /*LIBAURORAE_EXPORT*/ AuroraeTheme : public QObject
     Q_PROPERTY(QString defaultButtonsLeft READ defaultButtonsLeft NOTIFY themeChanged)
     Q_PROPERTY(QString defaultButtonsRight READ defaultButtonsRight NOTIFY themeChanged)
 public:
-    AuroraeTheme(QObject* parent = 0);
+    explicit AuroraeTheme(QObject* parent = 0);
     virtual ~AuroraeTheme();
     // TODO: KSharedConfigPtr
     void loadTheme(const QString &name, const KConfig &config);

clients/b2/b2client.h

@@ -87,7 +87,7 @@ class B2Titlebar : public QWidget
 {
     friend class B2Client;
 public:
-    B2Titlebar(B2Client *parent);
+    explicit B2Titlebar(B2Client *parent);
     ~B2Titlebar(){;}
     bool isFullyObscured() const {return isfullyobscured;}
     void recalcBuffer();

clients/oxygen/config/oxygenconfigurationui.h

@@ -49,7 +49,7 @@ namespace Oxygen
         public:
 
         //! constructor
-        ConfigurationUi( QWidget* );
+        explicit ConfigurationUi( QWidget* );
 
         //! destructor
         virtual ~ConfigurationUi( void )

clients/oxygen/config/oxygendetectwidget.h

@@ -53,7 +53,7 @@ namespace Oxygen
         public:
 
         //! constructor
-        DetectDialog( QWidget* );
+        explicit DetectDialog( QWidget* );
 
         //! read window properties or select one from mouse grab
         void detect( WId window );

clients/oxygen/config/oxygenexceptiondialog.h

@@ -49,7 +49,7 @@ namespace Oxygen
         public:
 
         //! constructor
-        ExceptionDialog( QWidget* parent );
+        explicit ExceptionDialog( QWidget* parent );
 
         //! set exception
         void setException( Exception );

clients/oxygen/config/oxygenshadowconfigurationui.h

@@ -40,7 +40,7 @@ namespace Oxygen
         public:
 
         //! constructor
-        ShadowConfigurationUi( QWidget* );
+        explicit ShadowConfigurationUi( QWidget* );
         Ui_ShadowConfiguraionUI ui;
 
         signals:

clients/oxygen/oxygenclientgroupitemdata.h

@@ -109,7 +109,7 @@ namespace Oxygen
         enum { NoItem = -1 };
 
         //! constructor
-        ClientGroupItemDataList( Client* parent );
+        explicit ClientGroupItemDataList( Client* parent );
 
         //! dirty state
         void setDirty( const bool& value )

clients/oxygen/oxygenconfiguration.h

@@ -130,7 +130,7 @@ namespace Oxygen
         Configuration( void );
 
         //! constructor from KConfig
-        Configuration( KConfigGroup );
+        explicit Configuration( KConfigGroup );
 
         //! destructor
         virtual ~Configuration( void )

clients/oxygen/oxygendecohelper.h

@@ -34,7 +34,7 @@ namespace Oxygen
         public:
 
         //! constructor
-        DecoHelper(const QByteArray &componentName);
+        explicit DecoHelper(const QByteArray &componentName);
 
         //! destructor
         virtual ~DecoHelper()

clients/oxygen/oxygenexception.h

@@ -78,7 +78,7 @@ namespace Oxygen
         {}
 
         //! constructor
-        Exception( KConfigGroup );
+        explicit Exception( KConfigGroup );
 
         //! destructor
         virtual ~Exception( void )

clients/oxygen/oxygenexceptionlist.h

@@ -46,7 +46,7 @@ namespace Oxygen
         {}
 
         //! default constructor
-        ExceptionList( const KConfig& config )
+        explicit ExceptionList( const KConfig& config )
         { read( config ); }
 
         //! read from KConfig

clients/oxygen/oxygensizegrip.h

@@ -43,7 +43,7 @@ namespace Oxygen
         public:
 
         //! constructor
-        SizeGrip( Client* );
+        explicit SizeGrip( Client* );
 
         //! constructor
         virtual ~SizeGrip( void );

clients/oxygen/oxygentitleanimationdata.h

@@ -53,7 +53,7 @@ namespace Oxygen
         typedef QWeakPointer<TitleAnimationData> Pointer;
 
         //! constructor
-        TitleAnimationData( QObject* );
+        explicit TitleAnimationData( QObject* );
 
         //! reset
         void reset( void )

dbusinterface.h

@@ -53,7 +53,7 @@ class DBusInterface: public QObject
     Q_OBJECT
     Q_CLASSINFO("D-Bus Interface", "org.kde.KWin")
 public:
-    DBusInterface(QObject *parent);
+    explicit DBusInterface(QObject *parent);
     virtual ~DBusInterface();
 
 public: // PROPERTIES

effects.h

@@ -243,7 +243,7 @@ class EffectWindowImpl : public EffectWindow
 {
     Q_OBJECT
 public:
-    EffectWindowImpl(Toplevel *toplevel);
+    explicit EffectWindowImpl(Toplevel *toplevel);
     virtual ~EffectWindowImpl();
 
     virtual void enablePainting(int reason);
@@ -295,7 +295,7 @@ class EffectWindowGroupImpl
     : public EffectWindowGroup
 {
 public:
-    EffectWindowGroupImpl(Group* g);
+    explicit EffectWindowGroupImpl(Group* g);
     virtual EffectWindowList members() const;
 private:
     Group* group;

effects/boxswitch/boxswitch_proxy.h

@@ -31,7 +31,7 @@ class BoxSwitchEffect;
 class BoxSwitchEffectProxy
 {
 public:
-    BoxSwitchEffectProxy(BoxSwitchEffect* effect);
+    explicit BoxSwitchEffectProxy(BoxSwitchEffect* effect);
     ~BoxSwitchEffectProxy();
 
     /**

effects/cube/cube_proxy.h

@@ -30,7 +30,7 @@ class CubeInsideEffect;
 class CubeEffectProxy
 {
 public:
-    CubeEffectProxy(CubeEffect* effect);
+    explicit CubeEffectProxy(CubeEffect* effect);
     ~CubeEffectProxy();
 
     void registerCubeInsideEffect(CubeInsideEffect* effect);

effects/desktopgrid/desktopgrid.h

@@ -43,7 +43,7 @@ class DesktopButtonsView : public QGraphicsView
 {
     Q_OBJECT
 public:
-    DesktopButtonsView(QWidget* parent = 0);
+    explicit DesktopButtonsView(QWidget* parent = 0);
     void windowInputMouseEvent(QMouseEvent* e);
     void setAddDesktopEnabled(bool enable);
     void setRemoveDesktopEnabled(bool enable);

effects/presentwindows/presentwindows.h

@@ -42,7 +42,7 @@ class CloseWindowView : public QGraphicsView
 {
     Q_OBJECT
 public:
-    CloseWindowView(QWidget* parent = 0);
+    explicit CloseWindowView(QWidget* parent = 0);
     void windowInputMouseEvent(QMouseEvent* e);
     virtual void drawBackground(QPainter* painter, const QRectF& rect);
 

effects/presentwindows/presentwindows_proxy.h

@@ -30,7 +30,7 @@ class PresentWindowsEffect;
 class PresentWindowsEffectProxy
 {
 public:
-    PresentWindowsEffectProxy(PresentWindowsEffect* effect);
+    explicit PresentWindowsEffectProxy(PresentWindowsEffect* effect);
     ~PresentWindowsEffectProxy();
 
     void calculateWindowTransformations(EffectWindowList windows, int screen, WindowMotionManager& manager);

kcmkwin/kwindecoration/buttons.h

@@ -61,7 +61,7 @@ public:
 class ButtonDrag : public QMimeData
 {
 public:
-    ButtonDrag(Button btn);
+    explicit ButtonDrag(Button btn);
     ~ButtonDrag() {}
 
     static bool canDecode(QDropEvent* e);
@@ -74,7 +74,7 @@ public:
 class ButtonDropSiteItem
 {
 public:
-    ButtonDropSiteItem(const Button& btn);
+    explicit ButtonDropSiteItem(const Button& btn);
     ~ButtonDropSiteItem();
 
     Button button();
@@ -112,7 +112,7 @@ class ButtonSource : public QListWidget
     Q_OBJECT
 
 public:
-    ButtonSource(QWidget *parent = 0);
+    explicit ButtonSource(QWidget *parent = 0);
     virtual ~ButtonSource();
 
     QSize sizeHint() const;

kcmkwin/kwindecoration/decorationmodel.h

@@ -90,7 +90,7 @@ public:
         QmlMainScriptRole = Qt::UserRole + 14,
         CloseOnDblClickRole = Qt::UserRole + 15
     };
-    DecorationModel(KSharedConfigPtr config, QObject* parent = 0);
+    explicit DecorationModel(KSharedConfigPtr config, QObject* parent = 0);
     ~DecorationModel();
 
     virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;

kcmkwin/kwindecoration/preview.h

@@ -45,7 +45,7 @@ public:
     //       and an inactive window.
     enum Windows { Inactive = 0, Active, NumWindows };
 
-    KDecorationPreview(QWidget* parent = NULL);
+    explicit KDecorationPreview(QWidget* parent = NULL);
     virtual ~KDecorationPreview();
     bool recreateDecoration(KDecorationPlugins* plugin);
     void enablePreview();
@@ -166,7 +166,7 @@ class KDecorationPreviewPlugins
     : public KDecorationPlugins
 {
 public:
-    KDecorationPreviewPlugins(const KSharedConfigPtr &cfg);
+    explicit KDecorationPreviewPlugins(const KSharedConfigPtr &cfg);
     virtual bool provides(Requirement);
 };
 

kcmkwin/kwindesktop/desktopnameswidget.h

@@ -36,7 +36,7 @@ class DesktopNamesWidget : public QWidget
 {
     Q_OBJECT
 public:
-    DesktopNamesWidget(QWidget *parent);
+    explicit DesktopNamesWidget(QWidget *parent);
     ~DesktopNamesWidget();
     QString name(int desktop);
     void setName(int desktop, QString desktopName);

kcmkwin/kwinrules/ruleslist.h

@@ -32,7 +32,7 @@ class KCMRulesList
 {
     Q_OBJECT
 public:
-    KCMRulesList(QWidget* parent = NULL);
+    explicit KCMRulesList(QWidget* parent = NULL);
     virtual ~KCMRulesList();
     void load();
     void save();

kcmkwin/kwinrules/ruleswidget.h

@@ -38,7 +38,7 @@ class RulesWidget
 {
     Q_OBJECT
 public:
-    RulesWidget(QWidget* parent = NULL);
+    explicit RulesWidget(QWidget* parent = NULL);
     void setRules(Rules* r);
     Rules* rules() const;
     bool finalCheck();
@@ -125,7 +125,7 @@ class EditShortcut
 {
     Q_OBJECT
 public:
-    EditShortcut(QWidget* parent = NULL);
+    explicit EditShortcut(QWidget* parent = NULL);
 protected slots:
     void editShortcut();
     void clearShortcut();

kcmkwin/kwinrules/yesnobox.h

@@ -28,7 +28,7 @@
 class YesNoBox : public QWidget {
     Q_OBJECT
 public:
-    YesNoBox( QWidget *parent ) : QWidget(parent)
+    explicit YesNoBox( QWidget *parent ) : QWidget(parent)
     {
         QHBoxLayout *l = new QHBoxLayout(this);
         l->setContentsMargins(0, 0, 0, 0);

kcmkwin/kwinscreenedges/monitor.h

@@ -46,7 +46,7 @@ class Monitor
 {
     Q_OBJECT
 public:
-    Monitor(QWidget* parent);
+    explicit Monitor(QWidget* parent);
     void setEdge(int edge, bool set);
     bool edge(int edge) const;
     void setEdgeHidden(int edge, bool set);

kcmkwin/kwinscripts/module.h

@@ -37,7 +37,7 @@ public:
      * @param parent Parent widget of the module
      * @param args Arguments for the module
      */
-    Module(QWidget *parent, const QVariantList &args = QVariantList());
+    explicit Module(QWidget *parent, const QVariantList &args = QVariantList());
 
     /**
      * Destructor.

kcmkwin/kwintabbox/layoutpreview.h

@@ -34,7 +34,7 @@ class LayoutPreview : public QDeclarativeView
 {
     Q_OBJECT
 public:
-    LayoutPreview(QWidget *parent = NULL);
+    explicit LayoutPreview(QWidget *parent = NULL);
     virtual ~LayoutPreview();
 
     void setLayout(const QString &path, const QString &name);
@@ -43,7 +43,7 @@ public:
 class TabBoxImageProvider : public QDeclarativeImageProvider
 {
 public:
-    TabBoxImageProvider(QAbstractListModel *model);
+    explicit TabBoxImageProvider(QAbstractListModel *model);
     virtual QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize);
 private:
     QAbstractListModel *m_model;
@@ -53,7 +53,7 @@ class ExampleClientModel : public QAbstractListModel
 {
     Q_OBJECT
 public:
-    ExampleClientModel(QObject *parent = NULL);
+    explicit ExampleClientModel(QObject *parent = NULL);
     virtual ~ExampleClientModel();
 
     virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;

kcmkwin/kwintabbox/thumbnailitem.h

@@ -31,7 +31,7 @@ class ThumbnailItem : public QDeclarativeItem
     Q_OBJECT
     Q_PROPERTY(qulonglong wId READ wId WRITE setWId NOTIFY wIdChanged SCRIPTABLE true)
 public:
-    ThumbnailItem(QDeclarativeItem *parent = 0);
+    explicit ThumbnailItem(QDeclarativeItem *parent = 0);
     virtual ~ThumbnailItem();
 
     qulonglong wId() const {

lanczosfilter.h

@@ -46,7 +46,7 @@ class LanczosFilter
     Q_OBJECT
 
 public:
-    LanczosFilter(QObject* parent = 0);
+    explicit LanczosFilter(QObject* parent = 0);
     ~LanczosFilter();
     void performPaint(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data);
 

libkdecorations/kdecoration_plugins_p.h

@@ -46,7 +46,7 @@ class KWIN_EXPORT KDecorationPlugins
     : public KDecorationProvides
 {
 public:
-    KDecorationPlugins(const KSharedConfigPtr &cfg);
+    explicit KDecorationPlugins(const KSharedConfigPtr &cfg);
     virtual ~KDecorationPlugins();
     /** Whether the plugin with @p name can be loaded
      * if @p loadedLib is passed, the library is NOT unloaded and freed

libkwineffects/anidata_p.h

@@ -33,7 +33,7 @@ public:
     AniData(AnimationEffect::Attribute a, int meta, int ms, const FPx2 &to,
             QEasingCurve curve, int delay, const FPx2 &from, bool waitAtSource );
     AniData(const AniData &other);
-    AniData(const QString &str);
+    explicit AniData(const QString &str);
     inline void addTime(int t) { time += t; }
     inline bool isOneDimensional() const {
         return from[0] == from[1] && to[0] == to[1];

libkwineffects/kwinanimationeffect.h

@@ -33,13 +33,13 @@ namespace KWin
 class KWIN_EXPORT FPx2 {
 public:
     FPx2() { f[0] = f[1] = 0.0; valid = false; }
-    FPx2(float v) { f[0] = f[1] = v; valid = true; }
+    explicit FPx2(float v) { f[0] = f[1] = v; valid = true; }
     FPx2(float v1, float v2) { f[0] = v1; f[1] = v2; valid = true; }
     FPx2(const FPx2 &other) { f[0] = other.f[0]; f[1] = other.f[1]; valid = other.valid; }
-    FPx2(const QPoint &other) { f[0] = other.x(); f[1] = other.y(); valid = true; }
-    FPx2(const QPointF &other) { f[0] = other.x(); f[1] = other.y(); valid = true; }
-    FPx2(const QSize &other) { f[0] = other.width(); f[1] = other.height(); valid = true; }
-    FPx2(const QSizeF &other) { f[0] = other.width(); f[1] = other.height(); valid = true; }
+    explicit FPx2(const QPoint &other) { f[0] = other.x(); f[1] = other.y(); valid = true; }
+    explicit FPx2(const QPointF &other) { f[0] = other.x(); f[1] = other.y(); valid = true; }
+    explicit FPx2(const QSize &other) { f[0] = other.width(); f[1] = other.height(); valid = true; }
+    explicit FPx2(const QSizeF &other) { f[0] = other.width(); f[1] = other.height(); valid = true; }
     inline void invalidate() { valid = false; }
     inline bool isValid() const { return valid; }
     inline float operator[](int n) const { return f[n]; }

libkwineffects/kwineffects.h

@@ -618,7 +618,7 @@ class KWIN_EXPORT EffectsHandler : public QObject
     Q_PROPERTY(QPoint cursorPos READ cursorPos)
     friend class Effect;
 public:
-    EffectsHandler(CompositingType type);
+    explicit EffectsHandler(CompositingType type);
     virtual ~EffectsHandler();
     // for use by effects
     virtual void prePaintScreen(ScreenPrePaintData& data, int time) = 0;
@@ -1348,7 +1348,7 @@ public:
         PAINT_DISABLED_BY_ACTIVITY     = 1 << 5
     };
 
-    EffectWindow(QObject *parent = NULL);
+    explicit EffectWindow(QObject *parent = NULL);
     virtual ~EffectWindow();
 
     virtual void enablePainting(int reason) = 0;
@@ -1565,7 +1565,7 @@ public:
 class KWIN_EXPORT GlobalShortcutsEditor : public KShortcutsEditor
 {
 public:
-    GlobalShortcutsEditor(QWidget *parent);
+    explicit GlobalShortcutsEditor(QWidget *parent);
 };
 
 /**
@@ -1834,7 +1834,7 @@ private:
 class KWIN_EXPORT WindowPaintData : public PaintData
 {
 public:
-    WindowPaintData(EffectWindow* w);
+    explicit WindowPaintData(EffectWindow* w);
     WindowPaintData(const WindowPaintData &other);
     virtual ~WindowPaintData();
     /**
@@ -2047,7 +2047,7 @@ public:
     /**
      * Calls push().
      */
-    PaintClipper(const QRegion& allowed_area);
+    explicit PaintClipper(const QRegion& allowed_area);
     /**
      * Calls pop().
      */

libkwineffects/kwingltexture.h

@@ -47,7 +47,7 @@ public:
     GLTexture(const GLTexture& tex);
     explicit GLTexture(const QImage& image, GLenum target = GL_TEXTURE_2D);
     explicit GLTexture(const QPixmap& pixmap, GLenum target = GL_TEXTURE_2D);
-    GLTexture(const QString& fileName);
+    explicit GLTexture(const QString& fileName);
     GLTexture(int width, int height);
     virtual ~GLTexture();
 

libkwineffects/kwinglutils.h

@@ -424,14 +424,14 @@ public:
      * @param reset Whether all uniforms should be reset to their default values. Defaults to false.
      * @see ShaderManager::pushShader
      **/
-    ShaderBinder(ShaderManager::ShaderType type, bool reset = false);
+    explicit ShaderBinder(ShaderManager::ShaderType type, bool reset = false);
     /**
      * @brief Pushes the given @p shader to the ShaderManager's stack.
      *
      * @param shader The Shader to push on the stack
      * @see ShaderManager::pushShader
      **/
-    ShaderBinder(GLShader *shader);
+    explicit ShaderBinder(GLShader *shader);
     ~ShaderBinder();
 
     /**
@@ -499,7 +499,7 @@ public:
      * Constructs a GLRenderTarget
      * @param color texture where the scene will be rendered onto
      **/
-    GLRenderTarget(const GLTexture& color);
+    explicit GLRenderTarget(const GLTexture& color);
     ~GLRenderTarget();
 
     /**
@@ -596,7 +596,7 @@ public:
         Stream ///< Data only used once for rendering, updated very frequently
     };
 
-    GLVertexBuffer(UsageHint hint);
+    explicit GLVertexBuffer(UsageHint hint);
     ~GLVertexBuffer();
 
     /**

libkwineffects/kwinxrenderutils.cpp

@@ -84,7 +84,7 @@ XRenderPicture xRenderFill(const QColor &c)
     return xRenderFill(&xc);
 }
 
-static XRenderPicture _blendPicture = X::None;
+static XRenderPicture _blendPicture(X::None);
 static XRenderColor _blendColor;
 XRenderPicture xRenderBlendPicture(double opacity)
 {

libkwineffects/kwinxrenderutils.h

@@ -58,7 +58,7 @@ class KWIN_EXPORT XRenderPictureData
     : public QSharedData
 {
 public:
-    XRenderPictureData(Picture pic = None);
+    explicit XRenderPictureData(Picture pic = None);
     ~XRenderPictureData();
     Picture value();
 private:
@@ -76,8 +76,8 @@ private:
 class KWIN_EXPORT XRenderPicture
 {
 public:
-    XRenderPicture(Picture pic = None);
-    XRenderPicture(QPixmap pix);
+    explicit XRenderPicture(Picture pic = None);
+    explicit XRenderPicture(QPixmap pix);
     XRenderPicture(Pixmap pix, int depth);
     operator Picture();
 private:

options.h

@@ -206,7 +206,7 @@ class Options : public QObject, public KDecorationOptions
     Q_PROPERTY(bool glLegacy READ isGlLegacy WRITE setGlLegacy NOTIFY glLegacyChanged)
 public:
 
-    Options(QObject *parent = NULL);
+    explicit Options(QObject *parent = NULL);
     ~Options();
 
     virtual unsigned long updateSettings();

rules.h

@@ -46,7 +46,7 @@ class WindowRules
     : public KDecorationDefines
 {
 public:
-    WindowRules(const QVector< Rules* >& rules);
+    explicit WindowRules(const QVector< Rules* >& rules);
     WindowRules();
     void update(Client*, int selection);
     void discardTemporary();
@@ -99,7 +99,7 @@ class Rules
 {
 public:
     Rules();
-    Rules(const KConfigGroup&);
+    explicit Rules(const KConfigGroup&);
     Rules(const QString&, bool temporary);
     enum Type {
         Position = 1<<0, Size = 1<<1, Desktop = 1<<2,

scene.h

@@ -40,7 +40,7 @@ class Scene : public QObject
 {
     Q_OBJECT
 public:
-    Scene(Workspace* ws);
+    explicit Scene(Workspace* ws);
     virtual ~Scene() = 0;
     class EffectFrame;
     class Window;

scene_opengl.h

@@ -88,7 +88,7 @@ class SceneOpenGL2 : public SceneOpenGL
 {
     Q_OBJECT
 public:
-    SceneOpenGL2(OpenGLBackend *backend);
+    explicit SceneOpenGL2(OpenGLBackend *backend);
     virtual ~SceneOpenGL2();
     virtual CompositingType compositingType() const {
         return OpenGL2Compositing;
@@ -119,7 +119,7 @@ private:
 class SceneOpenGL1 : public SceneOpenGL
 {
 public:
-    SceneOpenGL1(OpenGLBackend *backend);
+    explicit SceneOpenGL1(OpenGLBackend *backend);
     virtual ~SceneOpenGL1();
     virtual void screenGeometryChanged(const QSize &size);
     virtual int paint(QRegion damage, ToplevelList windows);
@@ -280,7 +280,7 @@ private:
 class SceneOpenGL2Window : public SceneOpenGL::Window
 {
 public:
-    SceneOpenGL2Window(Toplevel *c);
+    explicit SceneOpenGL2Window(Toplevel *c);
     virtual ~SceneOpenGL2Window();
 
 protected:
@@ -300,7 +300,7 @@ private:
 class SceneOpenGL1Window : public SceneOpenGL::Window
 {
 public:
-    SceneOpenGL1Window(Toplevel *c);
+    explicit SceneOpenGL1Window(Toplevel *c);
     virtual ~SceneOpenGL1Window();
 
 protected:
@@ -359,7 +359,7 @@ class SceneOpenGLShadow
     : public Shadow
 {
 public:
-    SceneOpenGLShadow(Toplevel *toplevel);
+    explicit SceneOpenGLShadow(Toplevel *toplevel);
     virtual ~SceneOpenGLShadow();
 
     GLTexture *shadowTexture() {

scene_xrender.h

@@ -38,7 +38,7 @@ class SceneXrender
     Q_OBJECT
 public:
     class EffectFrame;
-    SceneXrender(Workspace* ws);
+    explicit SceneXrender(Workspace* ws);
     virtual ~SceneXrender();
     virtual bool initFailed() const;
     virtual CompositingType compositingType() const {
@@ -153,7 +153,7 @@ class SceneXRenderShadow
     : public Shadow
 {
 public:
-    SceneXRenderShadow(Toplevel *toplevel);
+    explicit SceneXRenderShadow(Toplevel *toplevel);
     using Shadow::ShadowElements;
     using Shadow::ShadowElementTop;
     using Shadow::ShadowElementTopRight;

scripting/scripting.h

@@ -257,7 +257,7 @@ private:
 class ScriptUnloaderAgent : public QScriptEngineAgent
 {
 public:
-    ScriptUnloaderAgent(Script *script);
+    explicit ScriptUnloaderAgent(Script *script);
     virtual void scriptUnload(qint64 id);
 
 private:
@@ -298,7 +298,7 @@ private:
     void runScripts();
 
 public:
-    Scripting(QObject *parent = NULL);
+    explicit Scripting(QObject *parent = NULL);
     ~Scripting();
     Q_SCRIPTABLE Q_INVOKABLE int loadScript(const QString &filePath, const QString &pluginName = QString());
     Q_SCRIPTABLE Q_INVOKABLE int loadDeclarativeScript(const QString &filePath, const QString &pluginName = QString());

scripting/workspace_wrapper.h

@@ -163,7 +163,7 @@ public:
         ElectricNone
     };
 
-    WorkspaceWrapper(QObject* parent = 0);
+    explicit WorkspaceWrapper(QObject* parent = 0);
 #define GETTERSETTERDEF( rettype, getter, setter ) \
 rettype getter() const; \
 void setter( rettype val );

tabbox/clientmodel.h

@@ -57,7 +57,7 @@ public:
         MinimizedRole = Qt::UserRole + 6, ///< TabBoxClient is minimized
         CloseableRole = Qt::UserRole + 7 ///< TabBoxClient can be closed
     };
-    ClientModel(QObject* parent = 0);
+    explicit ClientModel(QObject* parent = 0);
     ~ClientModel();
     virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;
     virtual int columnCount(const QModelIndex& parent = QModelIndex()) const;

tabbox/declarative.h

@@ -42,7 +42,7 @@ namespace TabBox
 class ImageProvider : public QDeclarativeImageProvider
 {
 public:
-    ImageProvider(QAbstractItemModel *model);
+    explicit ImageProvider(QAbstractItemModel *model);
     virtual QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize);
 
 private:

tabbox/desktopmodel.h

@@ -51,7 +51,7 @@ public:
         DesktopNameRole = Qt::UserRole + 1, ///< Desktop name
         ClientModelRole = Qt::UserRole + 2 ///< Clients on this desktop
     };
-    DesktopModel(QObject* parent = 0);
+    explicit DesktopModel(QObject* parent = 0);
     ~DesktopModel();
 
     virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;

tabbox/tabbox.h

@@ -42,7 +42,7 @@ class TabBox;
 class TabBoxHandlerImpl : public TabBoxHandler
 {
 public:
-    TabBoxHandlerImpl(TabBox* tabBox);
+    explicit TabBoxHandlerImpl(TabBox* tabBox);
     virtual ~TabBoxHandlerImpl();
 
     virtual int activeScreen() const;
@@ -79,7 +79,7 @@ private:
 class TabBoxClientImpl : public TabBoxClient
 {
 public:
-    TabBoxClientImpl(Client *client);
+    explicit TabBoxClientImpl(Client *client);
     virtual ~TabBoxClientImpl();
 
     virtual QString caption() const;
@@ -107,7 +107,7 @@ class TabBox : public QObject
     Q_OBJECT
     Q_CLASSINFO("D-Bus Interface", "org.kde.kwin")
 public:
-    TabBox(QObject *parent = NULL);
+    explicit TabBox(QObject *parent = NULL);
     ~TabBox();
 
     Client* currentClient();

tabgroup.h

@@ -53,7 +53,7 @@ public:
     /**
      * Creates a new group containing \p c.
      */
-    TabGroup(Client* c);
+    explicit TabGroup(Client* c);
     ~TabGroup();
 
     enum State {

thumbnailitem.h

@@ -37,7 +37,7 @@ class ThumbnailItem : public QDeclarativeItem
     Q_PROPERTY(bool clip READ isClip WRITE setClip NOTIFY clipChanged SCRIPTABLE true)
     Q_PROPERTY(qulonglong parentWindow READ parentWindow WRITE setParentWindow)
 public:
-    ThumbnailItem(QDeclarativeItem *parent = 0);
+    explicit ThumbnailItem(QDeclarativeItem *parent = 0);
     virtual ~ThumbnailItem();
 
     qulonglong wId() const {

tools/decobenchmark/preview.h

@@ -123,7 +123,7 @@ class KDecorationPreviewPlugins
     : public KDecorationPlugins
 {
 public:
-    KDecorationPreviewPlugins(KConfig* cfg);
+    explicit KDecorationPreviewPlugins(KConfig* cfg);
     virtual bool provides(Requirement);
 };
 

toplevel.h

@@ -165,7 +165,7 @@ class Toplevel
      **/
     Q_PROPERTY(bool shaped READ shape NOTIFY shapedChanged)
 public:
-    Toplevel(Workspace *ws);
+    explicit Toplevel(Workspace *ws);
     Window frameId() const;
     Window window() const;
     Workspace* workspace() const;

unmanaged.h

@@ -33,7 +33,7 @@ class Unmanaged
 {
     Q_OBJECT
 public:
-    Unmanaged(Workspace *ws);
+    explicit Unmanaged(Workspace *ws);
     bool windowEvent(XEvent* e);
     void release(bool on_shutdown = false);
     bool track(Window w);

utils.h

@@ -215,7 +215,7 @@ class KWinSelectionOwner
 {
     Q_OBJECT
 public:
-    KWinSelectionOwner(int screen);
+    explicit KWinSelectionOwner(int screen);
 protected:
     virtual bool genericReply(Atom target, Atom property, Window requestor);
     virtual void replyTargets(Atom property, Window requestor);
@@ -383,7 +383,7 @@ class ShortcutDialog
 {
     Q_OBJECT
 public:
-    ShortcutDialog(const QKeySequence& cut);
+    explicit ShortcutDialog(const QKeySequence& cut);
     virtual void accept();
     QKeySequence shortcut() const;
 public Q_SLOTS:

workspace.h

@@ -83,7 +83,7 @@ class Workspace : public QObject, public KDecorationDefines
 {
     Q_OBJECT
 public:
-    Workspace(bool restore = false);
+    explicit Workspace(bool restore = false);
     virtual ~Workspace();
 
     static Workspace* self() {
@@ -860,7 +860,7 @@ private:
 class StackingUpdatesBlocker
 {
 public:
-    StackingUpdatesBlocker(Workspace* w)
+    explicit StackingUpdatesBlocker(Workspace* w)
         : ws(w) {
         ws->blockStackingUpdates(true);
     }