qwidget.h

奇趣公司比较新的qt/emd版本

#ifndef QT_NO_STYLE_STYLESHEET
    void setStyleSheet(const QString& styleSheet);
#endif
public:
#ifndef QT_NO_STYLE_STYLESHEET
    QString styleSheet() const;
#endif
    QString windowTitle() const;
    void setWindowIcon(const QIcon &icon);
    QIcon windowIcon() const;
    void setWindowIconText(const QString &);
    QString windowIconText() const;
    void setWindowRole(const QString &);
    QString windowRole() const;

    void setWindowOpacity(qreal level);
    qreal windowOpacity() const;

    bool isWindowModified() const;
#ifndef QT_NO_TOOLTIP
    void setToolTip(const QString &);
    QString toolTip() const;
#endif
#ifndef QT_NO_STATUSTIP
    void setStatusTip(const QString &);
    QString statusTip() const;
#endif
#ifndef QT_NO_WHATSTHIS
    void setWhatsThis(const QString &);
    QString whatsThis() const;
#endif
#ifndef QT_NO_ACCESSIBILITY
    QString accessibleName() const;
    void setAccessibleName(const QString &name);
    QString accessibleDescription() const;
    void setAccessibleDescription(const QString &description);
#endif

    void setLayoutDirection(Qt::LayoutDirection direction);
    Qt::LayoutDirection layoutDirection() const;
    void unsetLayoutDirection();

    void setLocale(const QLocale &locale);
    QLocale locale() const;
    void unsetLocale();

    inline bool isRightToLeft() const { return layoutDirection() == Qt::RightToLeft; }
    inline bool isLeftToRight() const { return layoutDirection() == Qt::LeftToRight; }

public Q_SLOTS:
    inline void setFocus() { setFocus(Qt::OtherFocusReason); }

public:
    bool isActiveWindow() const;
    void activateWindow();
    void clearFocus();

    void setFocus(Qt::FocusReason reason);
    Qt::FocusPolicy focusPolicy() const;
    void setFocusPolicy(Qt::FocusPolicy policy);
    bool hasFocus() const;
    static void setTabOrder(QWidget *, QWidget *);
    void setFocusProxy(QWidget *);
    QWidget *focusProxy() const;
    Qt::ContextMenuPolicy contextMenuPolicy() const;
    void setContextMenuPolicy(Qt::ContextMenuPolicy policy);

    // Grab functions
    void grabMouse();
#ifndef QT_NO_CURSOR
    void grabMouse(const QCursor &);
#endif
    void releaseMouse();
    void grabKeyboard();
    void releaseKeyboard();
#ifndef QT_NO_SHORTCUT
    int grabShortcut(const QKeySequence &key, Qt::ShortcutContext context = Qt::WindowShortcut);
    void releaseShortcut(int id);
    void setShortcutEnabled(int id, bool enable = true);
    void setShortcutAutoRepeat(int id, bool enable = true);
#endif
    static QWidget *mouseGrabber();
    static QWidget *keyboardGrabber();

    // Update/refresh functions
    inline bool updatesEnabled() const;
    void setUpdatesEnabled(bool enable);

#if 0 //def Q_WS_QWS
    void repaintUnclipped(const QRegion &, bool erase = true);
#endif

public Q_SLOTS:
    void update();
    void repaint();

public:
    inline void update(int x, int y, int w, int h);
    void update(const QRect&);
    void update(const QRegion&);

    void repaint(int x, int y, int w, int h);
    void repaint(const QRect &);
    void repaint(const QRegion &);

public Q_SLOTS:
    // Widget management functions

    virtual void setVisible(bool visible);
    inline void setHidden(bool hidden) { setVisible(!hidden); }
    inline void show() { setVisible(true); }
    inline void hide() { setVisible(false); }
    inline QT_MOC_COMPAT void setShown(bool shown) { setVisible(shown); }

    void showMinimized();
    void showMaximized();
    void showFullScreen();
    void showNormal();

    bool close();
    void raise();
    void lower();

public:
    void stackUnder(QWidget*);
    void move(int x, int y);
    void move(const QPoint &);
    void resize(int w, int h);
    void resize(const QSize &);
    inline void setGeometry(int x, int y, int w, int h);
    void setGeometry(const QRect &);
    QByteArray saveGeometry() const;
    bool restoreGeometry(const QByteArray &geometry);
    void adjustSize();
    bool isVisible() const;
    bool isVisibleTo(QWidget*) const;
    // ### Qt 5: bool isVisibleTo(_const_ QWidget *) const
    inline bool isHidden() const;

    bool isMinimized() const;
    bool isMaximized() const;
    bool isFullScreen() const;

    Qt::WindowStates windowState() const;
    void setWindowState(Qt::WindowStates state);
    void overrideWindowState(Qt::WindowStates state);

    virtual QSize sizeHint() const;
    virtual QSize minimumSizeHint() const;

    QSizePolicy sizePolicy() const;
    void setSizePolicy(QSizePolicy);
    inline void setSizePolicy(QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical);
    virtual int heightForWidth(int) const;

    QRegion visibleRegion() const;

    void setContentsMargins(int left, int top, int right, int bottom);
    void getContentsMargins(int *left, int *top, int *right, int *bottom) const;
    QRect contentsRect() const;

public:
    QLayout *layout() const;
    void setLayout(QLayout *);
    void updateGeometry();

    void setParent(QWidget *parent);
    void setParent(QWidget *parent, Qt::WindowFlags f);

    void scroll(int dx, int dy);
    void scroll(int dx, int dy, const QRect&);

    // Misc. functions

    QWidget *focusWidget() const;
    QWidget *nextInFocusChain() const;

    // drag and drop
    bool acceptDrops() const;
    void setAcceptDrops(bool on);

#ifndef QT_NO_ACTION
    //actions
    void addAction(QAction *action);
    void addActions(QList<QAction*> actions);
    void insertAction(QAction *before, QAction *action);
    void insertActions(QAction *before, QList<QAction*> actions);
    void removeAction(QAction *action);
    QList<QAction*> actions() const;
#endif

    QWidget *parentWidget() const;

    void setWindowFlags(Qt::WindowFlags type);
    inline Qt::WindowFlags windowFlags() const;
    void overrideWindowFlags(Qt::WindowFlags type);

    inline Qt::WindowType windowType() const;

    static QWidget *find(WId);
#ifdef QT3_SUPPORT
    static QT3_SUPPORT QWidgetMapper *wmapper();
#endif
    inline QWidget *childAt(int x, int y) const;
    QWidget *childAt(const QPoint &p) const;

#if defined(Q_WS_X11)
    const QX11Info &x11Info() const;
    Qt::HANDLE x11PictureHandle() const;
#endif

#if defined(Q_WS_MAC)
    Qt::HANDLE macQDHandle() const;
    Qt::HANDLE macCGHandle() const;
#endif

#if defined(Q_WS_WIN)
    HDC getDC() const;
    void releaseDC(HDC) const;
#else
    Qt::HANDLE handle() const;
#endif

    void setAttribute(Qt::WidgetAttribute, bool on = true);
    inline bool testAttribute(Qt::WidgetAttribute) const;

    QPaintEngine *paintEngine() const;

    void ensurePolished() const;

    QInputContext *inputContext();
    void setInputContext(QInputContext *);

    bool isAncestorOf(const QWidget *child) const;

#ifdef QT_KEYPAD_NAVIGATION
    bool hasEditFocus() const;
    void setEditFocus(bool on);
#endif

    bool autoFillBackground() const;
    void setAutoFillBackground(bool enabled);

    void setWindowSurface(QWindowSurface *surface);
    QWindowSurface *windowSurface() const;

Q_SIGNALS:
    void customContextMenuRequested(const QPoint &pos);

protected:
    // Event handlers
    bool event(QEvent *);
    virtual void mousePressEvent(QMouseEvent *);
    virtual void mouseReleaseEvent(QMouseEvent *);
    virtual void mouseDoubleClickEvent(QMouseEvent *);
    virtual void mouseMoveEvent(QMouseEvent *);
#ifndef QT_NO_WHEELEVENT
    virtual void wheelEvent(QWheelEvent *);
#endif
    virtual void keyPressEvent(QKeyEvent *);
    virtual void keyReleaseEvent(QKeyEvent *);
    virtual void focusInEvent(QFocusEvent *);
    virtual void focusOutEvent(QFocusEvent *);
    virtual void enterEvent(QEvent *);
    virtual void leaveEvent(QEvent *);
    virtual void paintEvent(QPaintEvent *);
    virtual void moveEvent(QMoveEvent *);
    virtual void resizeEvent(QResizeEvent *);
    virtual void closeEvent(QCloseEvent *);
    virtual void contextMenuEvent(QContextMenuEvent *);
#ifndef QT_NO_TABLETEVENT
    virtual void tabletEvent(QTabletEvent *);
#endif
#ifndef QT_NO_ACTION
    virtual void actionEvent(QActionEvent *);
#endif

#ifndef QT_NO_DRAGANDDROP
    virtual void dragEnterEvent(QDragEnterEvent *);
    virtual void dragMoveEvent(QDragMoveEvent *);
    virtual void dragLeaveEvent(QDragLeaveEvent *);
    virtual void dropEvent(QDropEvent *);
#endif

    virtual void showEvent(QShowEvent *);
    virtual void hideEvent(QHideEvent *);

#if defined(Q_WS_MAC)
    virtual bool macEvent(EventHandlerCallRef, EventRef);
#endif
#if defined(Q_WS_WIN)
    virtual bool winEvent(MSG *message, long *result);
#endif
#if defined(Q_WS_X11)
    virtual bool x11Event(XEvent *);
#endif
#if defined(Q_WS_QWS)
    virtual bool qwsEvent(QWSEvent *);
#endif

    // Misc. protected functions
    virtual void changeEvent(QEvent *);

    int metric(PaintDeviceMetric) const;

    virtual void inputMethodEvent(QInputMethodEvent *);
public:
    virtual QVariant inputMethodQuery(Qt::InputMethodQuery) const;
protected:
    void resetInputContext();
protected Q_SLOTS:
    void updateMicroFocus();
protected:

    void create(WId = 0, bool initializeWindow = true,
                         bool destroyOldWindow = true);
    void destroy(bool destroyWindow = true,
                 bool destroySubWindows = true);

    virtual bool focusNextPrevChild(bool next);
    inline bool focusNextChild() { return focusNextPrevChild(true); }
    inline bool focusPreviousChild() { return focusNextPrevChild(false); }

protected:
    QWidget(QWidgetPrivate &d, QWidget* parent, Qt::WindowFlags f);
private:

    bool testAttribute_helper(Qt::WidgetAttribute) const;

    friend void qt_syncBackingStore(QWidget *);
    friend void qt_syncBackingStore(QRegion, QWidget *);
    friend void qt_syncBackingStore(QRegion, QWidget *, bool);
    friend QWindowSurface *qt_default_window_surface(QWidget*);

    friend class QBackingStoreDevice;
    friend class QWidgetBackingStore;
    friend class QApplication;