Qt 4.8
Public Slots | Signals | Public Functions | Protected Functions | List of all members
QSplashScreen Class Reference

The QSplashScreen widget provides a splash screen that can be shown during application startup. More...

#include <qsplashscreen.h>

Inheritance diagram for QSplashScreen:
QWidget QObject QPaintDevice

Public Slots

void clearMessage ()
 Removes the message being displayed on the splash screen. More...
 
void showMessage (const QString &message, int alignment=Qt::AlignLeft, const QColor &color=Qt::black)
 Draws the message text onto the splash screen with color color and aligns the text according to the flags in alignment. More...
 
- Public Slots inherited from QWidget
bool close ()
 Closes this widget. More...
 
void hide ()
 Hides the widget. More...
 
void lower ()
 Lowers the widget to the bottom of the parent widget's stack. More...
 
void raise ()
 Raises this widget to the top of the parent widget's stack. More...
 
void repaint ()
 Repaints the widget directly by calling paintEvent() immediately, unless updates are disabled or the widget is hidden. More...
 
void setDisabled (bool)
 Disables widget input events if disable is true; otherwise enables input events. More...
 
void setEnabled (bool)
 
void setFocus ()
 Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. More...
 
void setHidden (bool hidden)
 Convenience function, equivalent to setVisible(!hidden). More...
 
QT_MOC_COMPAT void setShown (bool shown)
 Use setVisible(shown) instead. More...
 
void setStyleSheet (const QString &styleSheet)
 
virtual void setVisible (bool visible)
 
void setWindowModified (bool)
 
void setWindowTitle (const QString &)
 
void show ()
 Shows the widget and its child widgets. More...
 
void showFullScreen ()
 Shows the widget in full-screen mode. More...
 
void showMaximized ()
 Shows the widget maximized. More...
 
void showMinimized ()
 Shows the widget minimized, as an icon. More...
 
void showNormal ()
 Restores the widget after it has been maximized or minimized. More...
 
void update ()
 Updates the widget unless updates are disabled or the widget is hidden. More...
 
- Public Slots inherited from QObject
void deleteLater ()
 Schedules this object for deletion. More...
 

Signals

void messageChanged (const QString &message)
 This signal is emitted when the message on the splash screen changes. More...
 
- Signals inherited from QWidget
void customContextMenuRequested (const QPoint &pos)
 This signal is emitted when the widget's contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget. More...
 
- Signals inherited from QObject
void destroyed (QObject *=0)
 This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...
 

Public Functions

void finish (QWidget *w)
 Makes the splash screen wait until the widget mainWin is displayed before calling close() on itself. More...
 
const QPixmap pixmap () const
 Returns the pixmap that is used in the splash screen. More...
 
 QSplashScreen (const QPixmap &pixmap=QPixmap(), Qt::WindowFlags f=0)
 Construct a splash screen that will display the pixmap. More...
 
 QSplashScreen (QWidget *parent, const QPixmap &pixmap=QPixmap(), Qt::WindowFlags f=0)
 This function allows you to specify a parent for your splashscreen. More...
 
void repaint ()
 This overrides QWidget::repaint(). More...
 
void setPixmap (const QPixmap &pixmap)
 Sets the pixmap that will be used as the splash screen's image to pixmap. More...
 
virtual ~QSplashScreen ()
 Destructor. More...
 
- Public Functions inherited from QWidget
bool acceptDrops () const
 
QString accessibleDescription () const
 
QString accessibleName () const
 
QList< QAction * > actions () const
 Returns the (possibly empty) list of this widget's actions. More...
 
void activateWindow ()
 Sets the top-level widget containing this widget to be the active window. More...
 
void addAction (QAction *action)
 Appends the action action to this widget's list of actions. More...
 
void addActions (QList< QAction *> actions)
 Appends the actions actions to this widget's list of actions. More...
 
void adjustSize ()
 Adjusts the size of the widget to fit its contents. More...
 
bool autoFillBackground () const
 
QPalette::ColorRole backgroundRole () const
 Returns the background role of the widget. More...
 
QSize baseSize () const
 
QWidgetchildAt (int x, int y) const
 Returns the visible child widget at the position ({x}, {y}) in the widget's coordinate system. More...
 
QWidgetchildAt (const QPoint &p) const
 Returns the visible child widget at point p in the widget's own coordinate system. More...
 
QRect childrenRect () const
 
QRegion childrenRegion () const
 
void clearFocus ()
 Takes keyboard input focus from the widget. More...
 
void clearMask ()
 Removes any mask set by setMask(). More...
 
QMargins contentsMargins () const
 The contentsMargins function returns the widget's contents margins. More...
 
QRect contentsRect () const
 Returns the area inside the widget's margins. More...
 
Qt::ContextMenuPolicy contextMenuPolicy () const
 
void createWinId ()
 
QCursor cursor () const
 
int devType () const
 
WId effectiveWinId () const
 Returns the effective window system identifier of the widget, i. More...
 
void ensurePolished () const
 Ensures that the widget has been polished by QStyle (i.e., has a proper font and palette). More...
 
Qt::FocusPolicy focusPolicy () const
 
QWidgetfocusProxy () const
 Returns the focus proxy, or 0 if there is no focus proxy. More...
 
QWidgetfocusWidget () const
 Returns the last child of this widget that setFocus had been called on. More...
 
const QFontfont () const
 
QFontInfo fontInfo () const
 Returns the font info for the widget's current font. More...
 
QFontMetrics fontMetrics () const
 Returns the font metrics for the widget's current font. More...
 
QPalette::ColorRole foregroundRole () const
 Returns the foreground role. More...
 
QRect frameGeometry () const
 
QSize frameSize () const
 
const QRectgeometry () const
 
void getContentsMargins (int *left, int *top, int *right, int *bottom) const
 Returns the widget's contents margins for left, top, right, and bottom. More...
 
HDC getDC () const
 Returns the window system handle of the widget, for low-level access. More...
 
void grabGesture (Qt::GestureType type, Qt::GestureFlags flags=Qt::GestureFlags())
 Subscribes the widget to a given gesture with specific flags. More...
 
void grabKeyboard ()
 Grabs the keyboard input. More...
 
void grabMouse ()
 Grabs the mouse input. More...
 
void grabMouse (const QCursor &)
 
int grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)
 Adds a shortcut to Qt's shortcut system that watches for the given key sequence in the given context. More...
 
QGraphicsEffectgraphicsEffect () const
 The graphicsEffect function returns a pointer to the widget's graphics effect. More...
 
QGraphicsProxyWidgetgraphicsProxyWidget () const
 Returns the proxy widget for the corresponding embedded widget in a graphics view; otherwise returns 0. More...
 
bool hasFocus () const
 
bool hasMouseTracking () const
 
int height () const
 
virtual int heightForWidth (int) const
 Returns the preferred height for this widget, given the width w. More...
 
QInputContextinputContext ()
 This function returns the QInputContext for this widget. More...
 
Qt::InputMethodHints inputMethodHints () const
 
virtual QVariant inputMethodQuery (Qt::InputMethodQuery) const
 This method is only relevant for input widgets. More...
 
void insertAction (QAction *before, QAction *action)
 Inserts the action action to this widget's list of actions, before the action before. More...
 
void insertActions (QAction *before, QList< QAction *> actions)
 Inserts the actions actions to this widget's list of actions, before the action before. More...
 
WId internalWinId () const
 Returns the window system identifier of the widget, or 0 if the widget is not created yet. More...
 
bool isActiveWindow () const
 
bool isAncestorOf (const QWidget *child) const
 Returns true if this widget is a parent, (or grandparent and so on to any level), of the given child, and both widgets are within the same window; otherwise returns false. More...
 
bool isEnabled () const
 
bool isEnabledTo (QWidget *) const
 Returns true if this widget would become enabled if ancestor is enabled; otherwise returns false. More...
 
bool isEnabledToTLW () const
 This function is deprecated. More...
 
bool isFullScreen () const
 
bool isHidden () const
 Returns true if the widget is hidden, otherwise returns false. More...
 
bool isLeftToRight () const
 
bool isMaximized () const
 
bool isMinimized () const
 
bool isModal () const
 
bool isRightToLeft () const
 
bool isTopLevel () const
 Use isWindow() instead. More...
 
bool isVisible () const
 
bool isVisibleTo (QWidget *) const
 Returns true if this widget would become visible if ancestor is shown; otherwise returns false. More...
 
bool isWindow () const
 Returns true if the widget is an independent window, otherwise returns false. More...
 
bool isWindowModified () const
 
QLayoutlayout () const
 Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed. More...
 
Qt::LayoutDirection layoutDirection () const
 
QLocale locale () const
 
Qt::HANDLE macCGHandle () const
 Returns the CoreGraphics handle of the widget. More...
 
Qt::HANDLE macQDHandle () const
 Returns the QuickDraw handle of the widget. More...
 
QPoint mapFrom (QWidget *, const QPoint &) const
 Translates the widget coordinate pos from the coordinate system of parent to this widget's coordinate system. More...
 
QPoint mapFromGlobal (const QPoint &) const
 Translates the global screen coordinate pos to widget coordinates. More...
 
QPoint mapFromParent (const QPoint &) const
 Translates the parent widget coordinate pos to widget coordinates. More...
 
QPoint mapTo (QWidget *, const QPoint &) const
 Translates the widget coordinate pos to the coordinate system of parent. More...
 
QPoint mapToGlobal (const QPoint &) const
 Translates the widget coordinate pos to global screen coordinates. More...
 
QPoint mapToParent (const QPoint &) const
 Translates the widget coordinate pos to a coordinate in the parent widget. More...
 
QRegion mask () const
 Returns the mask currently set on a widget. More...
 
int maximumHeight () const
 
QSize maximumSize () const
 
int maximumWidth () const
 
int minimumHeight () const
 
QSize minimumSize () const
 
virtual QSize minimumSizeHint () const
 
int minimumWidth () const
 
void move (int x, int y)
 This corresponds to move(QPoint(x, y)). More...
 
void move (const QPoint &)
 
QWidgetnativeParentWidget () const
 Returns the native parent for this widget, i. More...
 
QWidgetnextInFocusChain () const
 Returns the next widget in this widget's focus chain. More...
 
QRect normalGeometry () const
 
void overrideWindowFlags (Qt::WindowFlags type)
 Sets the window flags for the widget to flags, without telling the window system. More...
 
void overrideWindowState (Qt::WindowStates state)
 
QPaintEnginepaintEngine () const
 Returns the widget's paint engine. More...
 
const QPalettepalette () const
 
QWidgetparentWidget () const
 Returns the parent of this widget, or 0 if it does not have any parent widget. More...
 
QPoint pos () const
 
QWidgetpreviousInFocusChain () const
 The previousInFocusChain function returns the previous widget in this widget's focus chain. More...
 
 QWidget (QWidget *parent=0, Qt::WindowFlags f=0)
 Constructs a widget which is a child of parent, with widget flags set to f. More...
 
QRect rect () const
 
void releaseDC (HDC) const
 Releases the HDC hdc acquired by a previous call to getDC(). More...
 
void releaseKeyboard ()
 Releases the keyboard grab. More...
 
void releaseMouse ()
 Releases the mouse grab. More...
 
void releaseShortcut (int id)
 Removes the shortcut with the given id from Qt's shortcut system. More...
 
void removeAction (QAction *action)
 Removes the action action from this widget's list of actions. More...
 
void render (QPaintDevice *target, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground|DrawChildren))
 Renders the sourceRegion of this widget into the target using renderFlags to determine how to render. More...
 
void render (QPainter *painter, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground|DrawChildren))
 Renders the widget into the painter's QPainter::device(). More...
 
void repaint (int x, int y, int w, int h)
 This version repaints a rectangle (x, y, w, h) inside the widget. More...
 
void repaint (const QRect &)
 This version repaints a rectangle rect inside the widget. More...
 
void repaint (const QRegion &)
 This version repaints a region rgn inside the widget. More...
 
void resize (int w, int h)
 This corresponds to resize(QSize(w, h)). More...
 
void resize (const QSize &)
 
bool restoreGeometry (const QByteArray &geometry)
 Restores the geometry and state top-level widgets stored in the byte array geometry. More...
 
QByteArray saveGeometry () const
 Saves the current geometry and state for top-level widgets. More...
 
void scroll (int dx, int dy)
 Scrolls the widget including its children dx pixels to the right and dy downward. More...
 
void scroll (int dx, int dy, const QRect &)
 This version only scrolls r and does not move the children of the widget. More...
 
void setAcceptDrops (bool on)
 
void setAccessibleDescription (const QString &description)
 
void setAccessibleName (const QString &name)
 
void setAttribute (Qt::WidgetAttribute, bool on=true)
 Sets the attribute attribute on this widget if on is true; otherwise clears the attribute. More...
 
void setAutoFillBackground (bool enabled)
 
void setBackgroundRole (QPalette::ColorRole)
 Sets the background role of the widget to role. More...
 
void setBaseSize (const QSize &)
 
void setBaseSize (int basew, int baseh)
 This corresponds to setBaseSize(QSize(basew, baseh)). More...
 
void setContentsMargins (int left, int top, int right, int bottom)
 Sets the margins around the contents of the widget to have the sizes left, top, right, and bottom. More...
 
void setContentsMargins (const QMargins &margins)
 The setContentsMargins function sets the margins around the widget's contents. More...
 
void setContextMenuPolicy (Qt::ContextMenuPolicy policy)
 
void setCursor (const QCursor &)
 
void setFixedHeight (int h)
 Sets both the minimum and maximum heights of the widget to h without changing the widths. More...
 
void setFixedSize (const QSize &)
 Sets both the minimum and maximum sizes of the widget to s, thereby preventing it from ever growing or shrinking. More...
 
void setFixedSize (int w, int h)
 Sets the width of the widget to w and the height to h. More...
 
void setFixedWidth (int w)
 Sets both the minimum and maximum width of the widget to w without changing the heights. More...
 
void setFocus (Qt::FocusReason reason)
 Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. More...
 
void setFocusPolicy (Qt::FocusPolicy policy)
 
void setFocusProxy (QWidget *)
 Sets the widget's focus proxy to widget w. More...
 
void setFont (const QFont &)
 Use the single-argument overload instead. More...
 
void setForegroundRole (QPalette::ColorRole)
 Sets the foreground role of the widget to role. More...
 
void setGeometry (int x, int y, int w, int h)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setGeometry(QRect(x, y, w, h)). More...
 
void setGeometry (const QRect &)
 
void setGraphicsEffect (QGraphicsEffect *effect)
 The setGraphicsEffect function is for setting the widget's graphics effect. More...
 
void setInputContext (QInputContext *)
 This function sets the input context context on this widget. More...
 
void setInputMethodHints (Qt::InputMethodHints hints)
 
void setLayout (QLayout *)
 Sets the layout manager for this widget to layout. More...
 
void setLayoutDirection (Qt::LayoutDirection direction)
 
void setLocale (const QLocale &locale)
 
void setMask (const QBitmap &)
 Causes only the pixels of the widget for which bitmap has a corresponding 1 bit to be visible. More...
 
void setMask (const QRegion &)
 Causes only the parts of the widget which overlap region to be visible. More...
 
void setMaximumHeight (int maxh)
 
void setMaximumSize (const QSize &)
 
void setMaximumSize (int maxw, int maxh)
 This function corresponds to setMaximumSize(QSize(maxw, maxh)). More...
 
void setMaximumWidth (int maxw)
 
void setMinimumHeight (int minh)
 
void setMinimumSize (const QSize &)
 
void setMinimumSize (int minw, int minh)
 This function corresponds to setMinimumSize(QSize(minw, minh)). More...
 
void setMinimumWidth (int minw)
 
void setMouseTracking (bool enable)
 
void setPalette (const QPalette &)
 Use the single-argument overload instead. More...
 
void setParent (QWidget *parent)
 Sets the parent of the widget to parent, and resets the window flags. More...
 
void setParent (QWidget *parent, Qt::WindowFlags f)
 This function also takes widget flags, f as an argument. More...
 
void setShortcutAutoRepeat (int id, bool enable=true)
 If enable is true, auto repeat of the shortcut with the given id is enabled; otherwise it is disabled. More...
 
void setShortcutEnabled (int id, bool enable=true)
 If enable is true, the shortcut with the given id is enabled; otherwise the shortcut is disabled. More...
 
void setSizeIncrement (const QSize &)
 
void setSizeIncrement (int w, int h)
 Sets the x (width) size increment to w and the y (height) size increment to h. More...
 
void setSizePolicy (QSizePolicy)
 
void setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)
 Sets the size policy of the widget to horizontal and vertical, with standard stretch and no height-for-width. More...
 
void setStatusTip (const QString &)
 
void setStyle (QStyle *)
 Sets the widget's GUI style to style. More...
 
void setToolTip (const QString &)
 
void setUpdatesEnabled (bool enable)
 
void setupUi (QWidget *widget)
 Sets up the user interface for the specified widget. More...
 
void setWhatsThis (const QString &)
 
void setWindowFilePath (const QString &filePath)
 
void setWindowFlags (Qt::WindowFlags type)
 
void setWindowIcon (const QIcon &icon)
 
void setWindowIconText (const QString &)
 
void setWindowModality (Qt::WindowModality windowModality)
 
void setWindowOpacity (qreal level)
 
void setWindowRole (const QString &)
 Sets the window's role to role. More...
 
void setWindowState (Qt::WindowStates state)
 Sets the window state to windowState. More...
 
void setWindowSurface (QWindowSurface *surface)
 Sets the window surface to be the surface specified. More...
 
QSize size () const
 
virtual QSize sizeHint () const
 
QSize sizeIncrement () const
 
QSizePolicy sizePolicy () const
 
void stackUnder (QWidget *)
 Places the widget under w in the parent widget's stack. More...
 
QString statusTip () const
 
QStylestyle () const
 
QString styleSheet () const
 
bool testAttribute (Qt::WidgetAttribute) const
 Returns true if attribute attribute is set on this widget; otherwise returns false. More...
 
QString toolTip () const
 
QWidgettopLevelWidget () const
 
bool underMouse () const
 Returns true if the widget is under the mouse cursor; otherwise returns false. More...
 
void ungrabGesture (Qt::GestureType type)
 Unsubscribes the widget from a given gesture type. More...
 
void unsetCursor ()
 
void unsetLayoutDirection ()
 
void unsetLocale ()
 
void update (int x, int y, int w, int h)
 This version updates a rectangle (x, y, w, h) inside the widget. More...
 
void update (const QRect &)
 This version updates a rectangle rect inside the widget. More...
 
void update (const QRegion &)
 This version repaints a region rgn inside the widget. More...
 
void updateGeometry ()
 Notifies the layout system that this widget has changed and may need to change geometry. More...
 
bool updatesEnabled () const
 
QRegion visibleRegion () const
 Returns the unobscured region where paint events can occur. More...
 
QString whatsThis () const
 
int width () const
 
QWidgetwindow () const
 Returns the window for this widget, i.e. More...
 
QString windowFilePath () const
 
Qt::WindowFlags windowFlags () const
 Window flags are a combination of a type (e. More...
 
QIcon windowIcon () const
 
QString windowIconText () const
 
Qt::WindowModality windowModality () const
 
qreal windowOpacity () const
 
QString windowRole () const
 Returns the window's role, or an empty string. More...
 
Qt::WindowStates windowState () const
 Returns the current window state. More...
 
QWindowSurfacewindowSurface () const
 Returns the QWindowSurface this widget will be drawn into. More...
 
QString windowTitle () const
 
Qt::WindowType windowType () const
 Returns the window type of this widget. More...
 
WId winId () const
 Returns the window system identifier of the widget. More...
 
int x () const
 
const QX11Infox11Info () const
 Returns information about the configuration of the X display used to display the widget. More...
 
Qt::HANDLE x11PictureHandle () const
 Returns the X11 Picture handle of the widget for XRender support. More...
 
int y () const
 
 ~QWidget ()
 Destroys the widget. More...
 
- Public Functions inherited from QObject
bool blockSignals (bool b)
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...
 
const QObjectListchildren () const
 Returns a list of child objects. More...
 
bool connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0)
 
bool disconnect (const QObject *receiver, const char *member=0)
 
void dumpObjectInfo ()
 Dumps information about signal connections, etc. More...
 
void dumpObjectTree ()
 Dumps a tree of children to the debug output. More...
 
QList< QByteArraydynamicPropertyNames () const
 Returns the names of all properties that were dynamically added to the object using setProperty(). More...
 
virtual bool eventFilter (QObject *, QEvent *)
 Filters events if this object has been installed as an event filter for the watched object. More...
 
template<typename T >
findChild (const QString &aName=QString()) const
 Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...
 
template<typename T >
QList< T > findChildren (const QString &aName=QString()) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...
 
template<typename T >
QList< T > findChildren (const QRegExp &re) const
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...
 
void installEventFilter (QObject *)
 Installs an event filter filterObj on this object. More...
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false. More...
 
void killTimer (int id)
 Kills the timer with timer identifier, id. More...
 
virtual const QMetaObjectmetaObject () const
 Returns a pointer to the meta-object of this object. More...
 
void moveToThread (QThread *thread)
 Changes the thread affinity for this object and its children. More...
 
QString objectName () const
 
QObjectparent () const
 Returns a pointer to the parent object. More...
 
QVariant property (const char *name) const
 Returns the value of the object's name property. More...
 
Q_INVOKABLE QObject (QObject *parent=0)
 Constructs an object with parent object parent. More...
 
void removeEventFilter (QObject *)
 Removes an event filter object obj from this object. More...
 
void setObjectName (const QString &name)
 
void setParent (QObject *)
 Makes the object a child of parent. More...
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value. More...
 
void setUserData (uint id, QObjectUserData *data)
 
bool signalsBlocked () const
 Returns true if signals are blocked; otherwise returns false. More...
 
int startTimer (int interval)
 Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...
 
QThreadthread () const
 Returns the thread in which the object lives. More...
 
QObjectUserDatauserData (uint id) const
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects. More...
 
- Public Functions inherited from QPaintDevice
int colorCount () const
 
int depth () const
 
int height () const
 
int heightMM () const
 
int logicalDpiX () const
 
int logicalDpiY () const
 
QT_DEPRECATED int numColors () const
 
bool paintingActive () const
 
int physicalDpiX () const
 
int physicalDpiY () const
 
int width () const
 
int widthMM () const
 
virtual ~QPaintDevice ()
 

Protected Functions

virtual void drawContents (QPainter *painter)
 Draw the contents of the splash screen using painter painter. More...
 
bool event (QEvent *e)
 Reimplemented Function More...
 
void mousePressEvent (QMouseEvent *)
 Reimplemented Function More...
 
- Protected Functions inherited from QWidget
virtual void actionEvent (QActionEvent *)
 This event handler is called with the given event whenever the widget's actions are changed. More...
 
virtual void changeEvent (QEvent *)
 This event handler can be reimplemented to handle state changes. More...
 
virtual void closeEvent (QCloseEvent *)
 This event handler is called with the given event when Qt receives a window close request for a top-level widget from the window system. More...
 
virtual void contextMenuEvent (QContextMenuEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive widget context menu events. More...
 
void create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true)
 Creates a new widget window if window is 0, otherwise sets the widget's window to window. More...
 
void destroy (bool destroyWindow=true, bool destroySubWindows=true)
 Frees up window system resources. More...
 
virtual void dragEnterEvent (QDragEnterEvent *)
 This event handler is called when a drag is in progress and the mouse enters this widget. More...
 
virtual void dragLeaveEvent (QDragLeaveEvent *)
 This event handler is called when a drag is in progress and the mouse leaves this widget. More...
 
virtual void dragMoveEvent (QDragMoveEvent *)
 This event handler is called if a drag is in progress, and when any of the following conditions occur: the cursor enters this widget, the cursor moves within this widget, or a modifier key is pressed on the keyboard while this widget has the focus. More...
 
virtual void dropEvent (QDropEvent *)
 This event handler is called when the drag is dropped on this widget. More...
 
virtual void enabledChange (bool)
 
virtual void enterEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive widget enter events which are passed in the event parameter. More...
 
virtual void focusInEvent (QFocusEvent *)
 This event handler can be reimplemented in a subclass to receive keyboard focus events (focus received) for the widget. More...
 
bool focusNextChild ()
 Finds a new widget to give the keyboard focus to, as appropriate for Tab, and returns true if it can find a new widget, or false if it can't. More...
 
virtual bool focusNextPrevChild (bool next)
 Finds a new widget to give the keyboard focus to, as appropriate for Tab and Shift+Tab, and returns true if it can find a new widget, or false if it can't. More...
 
virtual void focusOutEvent (QFocusEvent *)
 This event handler can be reimplemented in a subclass to receive keyboard focus events (focus lost) for the widget. More...
 
bool focusPreviousChild ()
 Finds a new widget to give the keyboard focus to, as appropriate for Shift+Tab, and returns true if it can find a new widget, or false if it can't. More...
 
virtual void fontChange (const QFont &)
 
virtual void hideEvent (QHideEvent *)
 This event handler can be reimplemented in a subclass to receive widget hide events. More...
 
virtual void inputMethodEvent (QInputMethodEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive Input Method composition events. More...
 
virtual void keyPressEvent (QKeyEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive key press events for the widget. More...
 
virtual void keyReleaseEvent (QKeyEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive key release events for the widget. More...
 
virtual void languageChange ()
 
virtual void leaveEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive widget leave events which are passed in the event parameter. More...
 
virtual bool macEvent (EventHandlerCallRef, EventRef)
 This special event handler can be reimplemented in a subclass to receive native Macintosh events. More...
 
int metric (PaintDeviceMetric) const
 Internal implementation of the virtual QPaintDevice::metric() function. More...
 
virtual void mouseDoubleClickEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse double click events for the widget. More...
 
virtual void mouseMoveEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse move events for the widget. More...
 
virtual void mouseReleaseEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse release events for the widget. More...
 
virtual void moveEvent (QMoveEvent *)
 This event handler can be reimplemented in a subclass to receive widget move events which are passed in the event parameter. More...
 
virtual void paintEvent (QPaintEvent *)
 This event handler can be reimplemented in a subclass to receive paint events passed in event. More...
 
virtual void paletteChange (const QPalette &)
 
 QWidget (QWidgetPrivate &d, QWidget *parent, Qt::WindowFlags f)
 
virtual bool qwsEvent (QWSEvent *)
 This special event handler can be reimplemented in a subclass to receive native Qt for Embedded Linux events which are passed in the event parameter. More...
 
void resetInputContext ()
 This function can be called on the widget that currently has focus to reset the input method operating on it. More...
 
virtual void resizeEvent (QResizeEvent *)
 This event handler can be reimplemented in a subclass to receive widget resize events which are passed in the event parameter. More...
 
virtual void showEvent (QShowEvent *)
 This event handler can be reimplemented in a subclass to receive widget show events which are passed in the event parameter. More...
 
virtual void styleChange (QStyle &)
 
virtual void tabletEvent (QTabletEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive tablet events for the widget. More...
 
virtual void wheelEvent (QWheelEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive wheel events for the widget. More...
 
virtual void windowActivationChange (bool)
 
virtual bool winEvent (MSG *message, long *result)
 This special event handler can be reimplemented in a subclass to receive native Windows events which are passed in the message parameter. More...
 
virtual bool x11Event (XEvent *)
 This special event handler can be reimplemented in a subclass to receive native X11 events passed in the event parameter. More...
 
- Protected Functions inherited from QObject
virtual void childEvent (QChildEvent *)
 This event handler can be reimplemented in a subclass to receive child events. More...
 
virtual void connectNotify (const char *signal)
 This virtual function is called when something has been connected to signal in this object. More...
 
virtual void customEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive custom events. More...
 
virtual void disconnectNotify (const char *signal)
 This virtual function is called when something has been disconnected from signal in this object. More...
 
 QObject (QObjectPrivate &dd, QObject *parent=0)
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal. More...
 
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...
 
int senderSignalIndex () const
 
virtual void timerEvent (QTimerEvent *)
 This event handler can be reimplemented in a subclass to receive timer events for the object. More...
 
- Protected Functions inherited from QPaintDevice
 QPaintDevice ()
 

Additional Inherited Members

- Public Types inherited from QWidget
enum  RenderFlag { DrawWindowBackground = 0x1, DrawChildren = 0x2, IgnoreMask = 0x4 }
 This enum describes how to render the widget when calling QWidget::render(). More...
 
- Public Types inherited from QPaintDevice
enum  PaintDeviceMetric {
  PdmWidth = 1, PdmHeight, PdmWidthMM, PdmHeightMM,
  PdmNumColors, PdmDepth, PdmDpiX, PdmDpiY,
  PdmPhysicalDpiX, PdmPhysicalDpiY
}
 
- Static Public Functions inherited from QWidget
static QWidgetfind (WId)
 Returns a pointer to the widget with window identifer/handle id. More...
 
static QWidgetkeyboardGrabber ()
 Returns the widget that is currently grabbing the keyboard input. More...
 
static QWidgetmouseGrabber ()
 Returns the widget that is currently grabbing the mouse input. More...
 
static void setTabOrder (QWidget *, QWidget *)
 Puts the second widget after the first widget in the focus order. More...
 
- Static Public Functions inherited from QObject
static bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...
 
static bool connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 Disconnects signal in object sender from method in object receiver. More...
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static uint registerUserData ()
 
static QString tr (const char *sourceText, const char *comment=0, int n=-1)
 
static QString trUtf8 (const char *sourceText, const char *comment=0, int n=-1)
 
- Static Public Functions inherited from QPaintDevice
static QWSDisplayqwsDisplay ()
 
- Static Public Variables inherited from QObject
static const QMetaObject staticMetaObject
 This variable stores the meta-object for the class. More...
 
- Protected Slots inherited from QWidget
void updateMicroFocus ()
 Updates the widget's micro focus. More...
 
- Protected Variables inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Protected Variables inherited from QPaintDevice
ushort painters
 
- Static Protected Variables inherited from QObject
static const QMetaObject staticQtMetaObject
 

Detailed Description

The QSplashScreen widget provides a splash screen that can be shown during application startup.

A splash screen is a widget that is usually displayed when an application is being started. Splash screens are often used for applications that have long start up times (e.g. database or networking applications that take time to establish connections) to provide the user with feedback that the application is loading.

The splash screen appears in the center of the screen. It may be useful to add the Qt::WindowStaysOnTopHint to the splash widget's window flags if you want to keep it above all the other windows on the desktop.

Some X11 window managers do not support the "stays on top" flag. A solution is to set up a timer that periodically calls raise() on the splash screen to simulate the "stays on top" effect.

The most common usage is to show a splash screen before the main widget is displayed on the screen. This is illustrated in the following code snippet in which a splash screen is displayed and some initialization tasks are performed before the application's main window is shown:

int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QPixmap pixmap(":/splash.png");
splash.show();
app.processEvents();

...

window.show();
splash.finish(&window);
return app.exec();
}

The user can hide the splash screen by clicking on it with the mouse. Since the splash screen is typically displayed before the event loop has started running, it is necessary to periodically call QApplication::processEvents() to receive the mouse clicks.

It is sometimes useful to update the splash screen with messages, for example, announcing connections established or modules loaded as the application starts up:

QPixmap pixmap(":/splash.png");
splash->show();
... // Loading some items
splash->showMessage("Loaded modules");
qApp->processEvents();
... // Establishing connections
splash->showMessage("Established connections");
qApp->processEvents();

QSplashScreen supports this with the showMessage() function. If you wish to do your own drawing you can get a pointer to the pixmap used in the splash screen with pixmap(). Alternatively, you can subclass QSplashScreen and reimplement drawContents().

Definition at line 57 of file qsplashscreen.h.

Constructors and Destructors

◆ QSplashScreen() [1/2]

QSplashScreen::QSplashScreen ( const QPixmap pixmap = QPixmap(),
Qt::WindowFlags  f = 0 
)
explicit

Construct a splash screen that will display the pixmap.

There should be no need to set the widget flags, f, except perhaps Qt::WindowStaysOnTopHint.

Definition at line 125 of file qsplashscreen.cpp.

127 {
128  setPixmap(pixmap); // Does an implicit repaint
129 }
QWidget(QWidget *parent=0, Qt::WindowFlags f=0)
Constructs a widget which is a child of parent, with widget flags set to f.
Definition: qwidget.cpp:1189
void setPixmap(const QPixmap &pixmap)
Sets the pixmap that will be used as the splash screen&#39;s image to pixmap.

◆ QSplashScreen() [2/2]

QSplashScreen::QSplashScreen ( QWidget parent,
const QPixmap pixmap = QPixmap(),
Qt::WindowFlags  f = 0 
)

This function allows you to specify a parent for your splashscreen.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

The typical use for this constructor is if you have a multiple screens and prefer to have the splash screen on a different screen than your primary one. In that case pass the proper desktop() as the parent.

Definition at line 142 of file qsplashscreen.cpp.

143  : QWidget(*new QSplashScreenPrivate, parent, Qt::SplashScreen | f)
144 {
145  d_func()->pixmap = pixmap;
146  setPixmap(d_func()->pixmap); // Does an implicit repaint
147 }
const QPixmap pixmap() const
Returns the pixmap that is used in the splash screen.
QWidget(QWidget *parent=0, Qt::WindowFlags f=0)
Constructs a widget which is a child of parent, with widget flags set to f.
Definition: qwidget.cpp:1189
void setPixmap(const QPixmap &pixmap)
Sets the pixmap that will be used as the splash screen&#39;s image to pixmap.

◆ ~QSplashScreen()

QSplashScreen::~QSplashScreen ( )
virtual

Destructor.

Definition at line 152 of file qsplashscreen.cpp.

153 {
154 }

Functions

◆ clearMessage

void QSplashScreen::clearMessage ( )
slot

Removes the message being displayed on the splash screen.

See also
showMessage()

Definition at line 220 of file qsplashscreen.cpp.

221 {
222  d_func()->currStatus.clear();
223  emit messageChanged(d_func()->currStatus);
224  repaint();
225 }
#define emit
Definition: qobjectdefs.h:76
void messageChanged(const QString &message)
This signal is emitted when the message on the splash screen changes.
void repaint()
This overrides QWidget::repaint().

◆ drawContents()

void QSplashScreen::drawContents ( QPainter painter)
protectedvirtual

Draw the contents of the splash screen using painter painter.

The default implementation draws the message passed by showMessage(). Reimplement this function if you want to do your own drawing on the splash screen.

Definition at line 282 of file qsplashscreen.cpp.

283 {
285  painter->setPen(d->currColor);
286  QRect r = rect().adjusted(5, 5, -5, -5);
287  if (Qt::mightBeRichText(d->currStatus)) {
288  QTextDocument doc;
289 #ifdef QT_NO_TEXTHTMLPARSER
290  doc.setPlainText(d->currStatus);
291 #else
292  doc.setHtml(d->currStatus);
293 #endif
294  doc.setTextWidth(r.width());
295  QTextCursor cursor(&doc);
297  QTextBlockFormat fmt;
298  fmt.setAlignment(Qt::Alignment(d->currAlign));
299  cursor.mergeBlockFormat(fmt);
300  painter->save();
301  painter->translate(r.topLeft());
302  doc.drawContents(painter);
303  painter->restore();
304  } else {
305  painter->drawText(r, d->currAlign, d->currStatus);
306  }
307 }
double d
Definition: qnumeric_p.h:62
QRect adjusted(int x1, int y1, int x2, int y2) const
Returns a new rectangle with dx1, dy1, dx2 and dy2 added respectively to the existing coordinates of ...
Definition: qrect.h:431
QCursor cursor() const
void restore()
Restores the current painter state (pops a saved state off the stack).
Definition: qpainter.cpp:1620
Q_GUI_EXPORT bool mightBeRichText(const QString &)
Returns true if the string text is likely to be rich text; otherwise returns false.
int width() const
Returns the width of the rectangle.
Definition: qrect.h:303
#define Q_D(Class)
Definition: qglobal.h:2482
void save()
Saves the current painter state (pushes the state onto a stack).
Definition: qpainter.cpp:1590
void setPlainText(const QString &text)
Replaces the entire contents of the document with the given plain text.
void drawText(const QPointF &p, const QString &s)
Draws the given text with the currently defined text direction, beginning at the given position...
Definition: qpainter.cpp:6231
The QTextCursor class offers an API to access and modify QTextDocuments.
Definition: qtextcursor.h:70
void setHtml(const QString &html)
Replaces the entire contents of the document with the given HTML-formatted text in the html string...
QRect rect() const
The QSplashScreen widget provides a splash screen that can be shown during application startup...
Definition: qsplashscreen.h:57
void drawContents(QPainter *painter, const QRectF &rect=QRectF())
Draws the content of the document with painter p, clipped to rect.
void setAlignment(Qt::Alignment alignment)
Sets the paragraph&#39;s alignment.
Definition: qtextformat.h:619
void setTextWidth(qreal width)
The QTextBlockFormat class provides formatting information for blocks of text in a QTextDocument...
Definition: qtextformat.h:545
void setPen(const QColor &color)
Sets the painter&#39;s pen to have style Qt::SolidLine, width 0 and the specified color.
Definition: qpainter.cpp:4047
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
The QTextDocument class holds formatted text that can be viewed and edited using a QTextEdit...
QPoint topLeft() const
Returns the position of the rectangle&#39;s top-left corner.
Definition: qrect.h:288
void translate(const QPointF &offset)
Translates the coordinate system by the given offset; i.e.
Definition: qpainter.cpp:3311

◆ event()

bool QSplashScreen::event ( QEvent e)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 331 of file qsplashscreen.cpp.

332 {
333  if (e->type() == QEvent::Paint) {
335  QPainter painter(this);
336  if (!d->pixmap.isNull())
337  painter.drawPixmap(QPoint(), d->pixmap);
338  drawContents(&painter);
339  }
340  return QWidget::event(e);
341 }
The QPainter class performs low-level painting on widgets and other paint devices.
Definition: qpainter.h:86
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
The QSplashScreen widget provides a splash screen that can be shown during application startup...
Definition: qsplashscreen.h:57
The QPoint class defines a point in the plane using integer precision.
Definition: qpoint.h:53
virtual void drawContents(QPainter *painter)
Draw the contents of the splash screen using painter painter.
bool event(QEvent *)
This is the main event handler; it handles event event.
Definition: qwidget.cpp:8636
Type type() const
Returns the event type.
Definition: qcoreevent.h:303

◆ finish()

void QSplashScreen::finish ( QWidget w)

Makes the splash screen wait until the widget mainWin is displayed before calling close() on itself.

Definition at line 231 of file qsplashscreen.cpp.

232 {
233  if (mainWin) {
234 #if defined(Q_WS_X11)
235  extern void qt_x11_wait_for_window_manager(QWidget *mainWin, bool);
236  qt_x11_wait_for_window_manager(mainWin, false);
237 #endif
238  }
239  close();
240 }
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
void qt_x11_wait_for_window_manager(QWidget *w, bool sendPostedEvents)
bool close()
Closes this widget.
Definition: qwidget.cpp:8305

◆ messageChanged

QSplashScreen::messageChanged ( const QString message)
signal

This signal is emitted when the message on the splash screen changes.

message is the new message and is a null-string when the message has been removed.

See also
showMessage(), clearMessage()

Referenced by clearMessage(), and showMessage().

◆ mousePressEvent()

void QSplashScreen::mousePressEvent ( QMouseEvent )
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 159 of file qsplashscreen.cpp.

160 {
161  hide();
162 }
void hide()
Hides the widget.
Definition: qwidget.h:501

◆ pixmap()

const QPixmap QSplashScreen::pixmap ( ) const

Returns the pixmap that is used in the splash screen.

The image does not have any of the text drawn by showMessage() calls.

Definition at line 264 of file qsplashscreen.cpp.

Referenced by QSplashScreen(), and setPixmap().

265 {
266  return d_func()->pixmap;
267 }

◆ repaint()

void QSplashScreen::repaint ( )

This overrides QWidget::repaint().

It differs from the standard repaint function in that it also calls QApplication::flush() to ensure the updates are displayed, even when there is no event loop present.

Definition at line 170 of file qsplashscreen.cpp.

Referenced by clearMessage(), setPixmap(), and showMessage().

171 {
174 }
void repaint()
Repaints the widget directly by calling paintEvent() immediately, unless updates are disabled or the ...
Definition: qwidget.cpp:10761
static void flush()
Flushes the platform specific event queues.

◆ setPixmap()

void QSplashScreen::setPixmap ( const QPixmap pixmap)

Sets the pixmap that will be used as the splash screen's image to pixmap.

Definition at line 246 of file qsplashscreen.cpp.

Referenced by QSplashScreen().

247 {
249 
250  d->pixmap = pixmap;
252 
253  QRect r(QPoint(), d->pixmap.size());
254  resize(r.size());
255  move(QApplication::desktop()->screenGeometry().center() - r.center());
256  if (isVisible())
257  repaint();
258 }
double d
Definition: qnumeric_p.h:62
bool isVisible() const
Definition: qwidget.h:1005
#define Q_D(Class)
Definition: qglobal.h:2482
const QPixmap pixmap() const
Returns the pixmap that is used in the splash screen.
QTextStream & center(QTextStream &stream)
Calls QTextStream::setFieldAlignment(QTextStream::AlignCenter) on stream and returns stream...
Q_CORE_EXPORT QTextStream & center(QTextStream &s)
static QDesktopWidget * desktop()
Returns the desktop widget (also called the root window).
The QSplashScreen widget provides a splash screen that can be shown during application startup...
Definition: qsplashscreen.h:57
void resize(int w, int h)
This corresponds to resize(QSize(w, h)).
Definition: qwidget.h:1014
bool hasAlpha() const
Returns true if this pixmap has an alpha channel, or has a mask, otherwise returns false...
Definition: qpixmap.cpp:1938
The QPoint class defines a point in the plane using integer precision.
Definition: qpoint.h:53
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
void setAttribute(Qt::WidgetAttribute, bool on=true)
Sets the attribute attribute on this widget if on is true; otherwise clears the attribute.
Definition: qwidget.cpp:11087
void move(int x, int y)
This corresponds to move(QPoint(x, y)).
Definition: qwidget.h:1011
void repaint()
This overrides QWidget::repaint().

◆ showMessage

void QSplashScreen::showMessage ( const QString message,
int  alignment = Qt::AlignLeft,
const QColor color = Qt::black 
)
slot

Draws the message text onto the splash screen with color color and aligns the text according to the flags in alignment.

To make sure the splash screen is repainted immediately, you can call QCoreApplication's QCoreApplication::processEvents() after the call to showMessage(). You usually want this to make sure that the message is kept up to date with what your application is doing (e.g., loading files).

See also
Qt::Alignment, clearMessage()

Definition at line 204 of file qsplashscreen.cpp.

206 {
208  d->currStatus = message;
209  d->currAlign = alignment;
210  d->currColor = color;
211  emit messageChanged(d->currStatus);
212  repaint();
213 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
#define emit
Definition: qobjectdefs.h:76
The QSplashScreen widget provides a splash screen that can be shown during application startup...
Definition: qsplashscreen.h:57
void messageChanged(const QString &message)
This signal is emitted when the message on the splash screen changes.
void repaint()
This overrides QWidget::repaint().

The documentation for this class was generated from the following files: