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QSplitter Class Reference

Inheritance diagram for QSplitter:

QFrame QWidget QObject QPaintDevice

List of all members.


Detailed Description

The QSplitter class implements a splitter widget.

A splitter lets the user control the size of child widgets by dragging the boundary between the children. Any number of widgets may be controlled by a single splitter. The typical use of a QSplitter is to create several widgets and add them using insertWidget() or addWidget().

The following example will show a QListView, QTreeView, and QTextEdit side by side, with two splitter handles:

snippets/splitter/splitter.cpp QSplitter splitter->addWidget(textedit);

If a widget is already inside a QSplitter when insertWidget() or addWidget() is called, it will move to the new position. This can be used to reorder widgets in the splitter later. You can use indexOf(), widget(), and count() to get access to the widgets inside the splitter.

A default QSplitter lays out its children horizontally (side by side); you can use setOrientation(Qt::Vertical) to lay its children out vertically.

By default, all widgets can be as large or as small as the user wishes, between the minimumSizeHint() (or minimumSize()) and maximumSize() of the widgets.

QSplitter resizes its children dynamically by default. If you would rather have QSplitter resize the children only at the end of a resize operation, call setOpaqueResize(false).

The initial distribution of size between the widgets is determined by the initial size of each widget. You can also use setSizes() to set the sizes of all the widgets. The function sizes() returns the sizes set by the user. Alternatively, you can save and restore the sizes of the widgets from a QByteArray using saveState() and restoreState() respectively.

When you hide() a child its space will be distributed among the other children. It will be reinstated when you show() it again.

See also:
QSplitterHandle, QHBoxLayout, QVBoxLayout, QTabWidget

Definition at line 42 of file qsplitter.h.


Public Types

enum  PaintDeviceMetric {
  PdmWidth = 1, PdmHeight, PdmWidthMM, PdmHeightMM,
  PdmNumColors, PdmDepth, PdmDpiX, PdmDpiY,
  PdmPhysicalDpiX, PdmPhysicalDpiY
}
enum  Shadow { Plain = 0x0010, Raised = 0x0020, Sunken = 0x0030 }
enum  Shape {
  NoFrame = 0, Box = 0x0001, Panel = 0x0002, WinPanel = 0x0003,
  HLine = 0x0004, VLine = 0x0005, StyledPanel = 0x0006
}
enum  StyleMask { Shadow_Mask = 0x00f0, Shape_Mask = 0x000f }

Public Slots

bool close ()
void deleteLater ()
void hide ()
void lower ()
void raise ()
void repaint ()
void setDisabled (bool)
void setEnabled (bool)
void setFocus ()
void setHidden (bool hidden)
QT_MOC_COMPAT void setShown (bool shown)
void setStyleSheet (const QString &styleSheet)
virtual void setVisible (bool visible)
void setWindowModified (bool)
void setWindowTitle (const QString &)
void show ()
void showFullScreen ()
void showMaximized ()
void showMinimized ()
void showNormal ()
void update ()

Signals

void customContextMenuRequested (const QPoint &pos)
void destroyed (QObject *=0)
void splitterMoved (int pos, int index)

Public Member Functions

bool acceptDrops () const
QString accessibleDescription () const
QString accessibleName () const
QList< QAction * > actions () const
void activateWindow ()
void addAction (QAction *action)
void addActions (QList< QAction * > actions)
void addWidget (QWidget *widget)
void adjustSize ()
bool autoFillBackground () const
QPalette::ColorRole backgroundRole () const
QSize baseSize () const
bool blockSignals (bool b)
QWidgetchildAt (const QPoint &p) const
QWidgetchildAt (int x, int y) const
const QObjectListchildren () const
bool childrenCollapsible () const
QRect childrenRect () const
QRegion childrenRegion () const
void clearFocus ()
void clearMask ()
bool connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
QRect contentsRect () const
Qt::ContextMenuPolicy contextMenuPolicy () const
int count () const
void createWinId ()
QCursor cursor () const
int depth () const
int devType () const
bool disconnect (const QObject *receiver, const char *member=0)
bool disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0)
void dumpObjectInfo ()
void dumpObjectTree ()
QList< QByteArraydynamicPropertyNames () const
void ensurePolished () const
virtual bool eventFilter (QObject *, QEvent *)
template<typename T>
findChild (const QString &name=QString()) const
template<typename T>
QList< T > findChildren (const QRegExp &re) const
template<typename T>
QList< T > findChildren (const QString &name=QString()) const
Qt::FocusPolicy focusPolicy () const
QWidgetfocusProxy () const
QWidgetfocusWidget () const
const QFontfont () const
QFontInfo fontInfo () const
QFontMetrics fontMetrics () const
QPalette::ColorRole foregroundRole () const
QRect frameGeometry () const
QRect frameRect () const
Shadow frameShadow () const
Shape frameShape () const
QSize frameSize () const
int frameStyle () const
int frameWidth () const
const QRectgeometry () const
void getContentsMargins (int *left, int *top, int *right, int *bottom) const
void getRange (int index, int *, int *) const
void grabKeyboard ()
void grabMouse (const QCursor &)
void grabMouse ()
int grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)
Qt::HANDLE handle () const
QSplitterHandlehandle (int index) const
int handleWidth () const
bool hasFocus () const
bool hasMouseTracking () const
int height () const
virtual int heightForWidth (int) const
int heightMM () const
int indexOf (QWidget *w) const
bool inherits (const char *classname) const
QInputContextinputContext ()
virtual QVariant inputMethodQuery (Qt::InputMethodQuery) const
void insertAction (QAction *before, QAction *action)
void insertActions (QAction *before, QList< QAction * > actions)
void insertWidget (int index, QWidget *widget)
void installEventFilter (QObject *)
WId internalWinId () const
bool isActiveWindow () const
bool isAncestorOf (const QWidget *child) const
bool isCollapsible (int index) const
bool isEnabled () const
bool isEnabledTo (QWidget *) const
bool isEnabledToTLW () const
bool isFullScreen () const
bool isHidden () const
bool isLeftToRight () const
bool isMaximized () const
bool isMinimized () const
bool isModal () const
bool isRightToLeft () const
bool isTopLevel () const
bool isVisible () const
bool isVisibleTo (QWidget *) const
bool isWidgetType () const
bool isWindow () const
bool isWindowModified () const
void killTimer (int id)
QLayoutlayout () const
Qt::LayoutDirection layoutDirection () const
int lineWidth () const
int logicalDpiX () const
int logicalDpiY () const
QPoint mapFrom (QWidget *, const QPoint &) const
QPoint mapFromGlobal (const QPoint &) const
QPoint mapFromParent (const QPoint &) const
QPoint mapTo (QWidget *, const QPoint &) const
QPoint mapToGlobal (const QPoint &) const
QPoint mapToParent (const QPoint &) const
QRegion mask () const
int maximumHeight () const
QSize maximumSize () const
int maximumWidth () const
int midLineWidth () const
int minimumHeight () const
QSize minimumSize () const
QSize minimumSizeHint () const
int minimumWidth () const
void move (const QPoint &)
void move (int x, int y)
void moveToThread (QThread *thread)
QWidgetnextInFocusChain () const
QRect normalGeometry () const
int numColors () const
QString objectName () const
bool opaqueResize () const
Qt::Orientation orientation () const
void overrideWindowFlags (Qt::WindowFlags type)
void overrideWindowState (Qt::WindowStates state)
QPaintEnginepaintEngine () const
bool paintingActive () const
const QPalettepalette () const
QObjectparent () const
QWidgetparentWidget () const
int physicalDpiX () const
int physicalDpiY () const
QPoint pos () const
QVariant property (const char *name) const
 QSplitter (Qt::Orientation, QWidget *parent=0)
 QSplitter (QWidget *parent=0)
QRect rect () const
void refresh ()
void releaseKeyboard ()
void releaseMouse ()
void releaseShortcut (int id)
void removeAction (QAction *action)
void removeEventFilter (QObject *)
void repaint (const QRegion &)
void repaint (const QRect &)
void repaint (int x, int y, int w, int h)
void resize (const QSize &)
void resize (int w, int h)
bool restoreGeometry (const QByteArray &geometry)
bool restoreState (const QByteArray &state)
QByteArray saveGeometry () const
QByteArray saveState () const
void scroll (int dx, int dy, const QRect &)
void scroll (int dx, int dy)
void setAcceptDrops (bool on)
void setAccessibleDescription (const QString &description)
void setAccessibleName (const QString &name)
void setAttribute (Qt::WidgetAttribute, bool on=true)
void setAutoFillBackground (bool enabled)
void setBackgroundRole (QPalette::ColorRole)
void setBaseSize (int basew, int baseh)
void setBaseSize (const QSize &)
void setChildrenCollapsible (bool)
void setCollapsible (int index, bool)
void setContentsMargins (int left, int top, int right, int bottom)
void setContextMenuPolicy (Qt::ContextMenuPolicy policy)
void setCursor (const QCursor &)
void setFixedHeight (int h)
void setFixedSize (int w, int h)
void setFixedSize (const QSize &)
void setFixedWidth (int w)
void setFocus (Qt::FocusReason reason)
void setFocusPolicy (Qt::FocusPolicy policy)
void setFocusProxy (QWidget *)
void setFont (const QFont &)
void setForegroundRole (QPalette::ColorRole)
void setFrameRect (const QRect &)
void setFrameShadow (Shadow)
void setFrameShape (Shape)
void setFrameStyle (int)
void setGeometry (const QRect &)
void setGeometry (int x, int y, int w, int h)
void setHandleWidth (int)
void setInputContext (QInputContext *)
void setLayout (QLayout *)
void setLayoutDirection (Qt::LayoutDirection direction)
void setLineWidth (int)
void setMask (const QRegion &)
void setMask (const QBitmap &)
void setMaximumHeight (int maxh)
void setMaximumSize (int maxw, int maxh)
void setMaximumSize (const QSize &)
void setMaximumWidth (int maxw)
void setMidLineWidth (int)
void setMinimumHeight (int minh)
void setMinimumSize (int minw, int minh)
void setMinimumSize (const QSize &)
void setMinimumWidth (int minw)
void setMouseTracking (bool enable)
void setObjectName (const QString &name)
void setOpaqueResize (bool opaque=true)
void setOrientation (Qt::Orientation)
void setPalette (const QPalette &)
void setParent (QObject *)
void setParent (QWidget *parent, Qt::WindowFlags f)
void setParent (QWidget *parent)
bool setProperty (const char *name, const QVariant &value)
void setShortcutAutoRepeat (int id, bool enable=true)
void setShortcutEnabled (int id, bool enable=true)
void setSizeIncrement (int w, int h)
void setSizeIncrement (const QSize &)
void setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)
void setSizePolicy (QSizePolicy)
void setSizes (const QList< int > &list)
void setStatusTip (const QString &)
void setStretchFactor (int index, int stretch)
void setStyle (QStyle *)
void setToolTip (const QString &)
void setUpdatesEnabled (bool enable)
void setUserData (uint id, QObjectUserData *data)
void setWhatsThis (const QString &)
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 &)
void setWindowState (Qt::WindowStates state)
void setWindowSurface (QWindowSurface *surface)
bool signalsBlocked () const
QSize size () const
QSize sizeHint () const
QSize sizeIncrement () const
QSizePolicy sizePolicy () const
QList< int > sizes () const
void stackUnder (QWidget *)
int startTimer (int interval)
QString statusTip () const
QStylestyle () const
QString styleSheet () const
bool testAttribute (Qt::WidgetAttribute) const
QThreadthread () const
QString toolTip () const
QWidgettopLevelWidget () const
bool underMouse () const
void unsetCursor ()
void unsetLayoutDirection ()
void update (const QRegion &)
void update (const QRect &)
void update (int x, int y, int w, int h)
void updateGeometry ()
bool updatesEnabled () const
QObjectUserData * userData (uint id) const
QRegion visibleRegion () const
QString whatsThis () const
QWidgetwidget (int index) const
int width () const
int widthMM () const
QWidgetwindow () const
Qt::WindowFlags windowFlags () const
QIcon windowIcon () const
QString windowIconText () const
Qt::WindowModality windowModality () const
qreal windowOpacity () const
QString windowRole () const
Qt::WindowStates windowState () const
QWindowSurface * windowSurface () const
QString windowTitle () const
Qt::WindowType windowType () const
WId winId () const
int x () const
int y () const
 ~QSplitter ()

Static Public Member Functions

static bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
static QWidgetfind (WId)
static QWidgetkeyboardGrabber ()
static QWidgetmouseGrabber ()
static uint registerUserData ()
static void setTabOrder (QWidget *, QWidget *)

Protected Slots

void updateMicroFocus ()

Protected Member Functions

virtual void actionEvent (QActionEvent *)
void changeEvent (QEvent *)
void childEvent (QChildEvent *)
virtual void closeEvent (QCloseEvent *)
int closestLegalPosition (int, int)
virtual void connectNotify (const char *signal)
virtual void contextMenuEvent (QContextMenuEvent *)
void create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true)
virtual QSplitterHandlecreateHandle ()
virtual void customEvent (QEvent *)
void destroy (bool destroyWindow=true, bool destroySubWindows=true)
virtual void disconnectNotify (const char *signal)
virtual void dragEnterEvent (QDragEnterEvent *)
virtual void dragLeaveEvent (QDragLeaveEvent *)
virtual void dragMoveEvent (QDragMoveEvent *)
void drawFrame (QPainter *)
virtual void dropEvent (QDropEvent *)
virtual void enabledChange (bool)
virtual void enterEvent (QEvent *)
bool event (QEvent *)
virtual void focusInEvent (QFocusEvent *)
bool focusNextChild ()
virtual bool focusNextPrevChild (bool next)
virtual void focusOutEvent (QFocusEvent *)
bool focusPreviousChild ()
virtual void fontChange (const QFont &)
virtual void hideEvent (QHideEvent *)
virtual void inputMethodEvent (QInputMethodEvent *)
virtual void keyPressEvent (QKeyEvent *)
virtual void keyReleaseEvent (QKeyEvent *)
virtual void languageChange ()
virtual void leaveEvent (QEvent *)
int metric (PaintDeviceMetric) const
virtual void mouseDoubleClickEvent (QMouseEvent *)
virtual void mouseMoveEvent (QMouseEvent *)
virtual void mousePressEvent (QMouseEvent *)
virtual void mouseReleaseEvent (QMouseEvent *)
virtual void moveEvent (QMoveEvent *)
void moveSplitter (int pos, int index)
void paintEvent (QPaintEvent *)
virtual void paletteChange (const QPalette &)
int receivers (const char *signal) const
void resetInputContext ()
void resizeEvent (QResizeEvent *)
QObjectsender () const
void setRubberBand (int position)
virtual void showEvent (QShowEvent *)
virtual void styleChange (QStyle &)
virtual void tabletEvent (QTabletEvent *)
virtual void timerEvent (QTimerEvent *)
virtual void wheelEvent (QWheelEvent *)
virtual void windowActivationChange (bool)

Protected Attributes

QObjectData * d_ptr
ushort painters

Static Protected Attributes

static const QMetaObject staticQtMetaObject

Properties

bool acceptDrops
 whether drop events are enabled for this widget
QString accessibleDescription
 the widget's description as seen by assistive technologies
QString accessibleName
 the widget's name as seen by assistive technologies
bool autoFillBackground
 whether the widget background is filled automatically
QSize baseSize
 the base size of the widget
bool childrenCollapsible
 whether child widgets can be resized down to size 0 by the user
QRect childrenRect
 the bounding rectangle of the widget's children
QRegion childrenRegion
 the combined region occupied by the widget's children
Qt::ContextMenuPolicy contextMenuPolicy
 how the widget shows a context menu
QCursor cursor
 the cursor shape for this widget
bool enabled
 whether the widget is enabled
bool focus
 whether this widget (or its focus proxy) has the keyboard input focus
Qt::FocusPolicy focusPolicy
 the way the widget accepts keyboard focus
QFont font
 the font currently set for the widget
QRect frameGeometry
 geometry of the widget relative to its parent including any window frame
QRect frameRect
 the frame's rectangle
Shadow frameShadow
 the frame shadow value from the frame style
Shape frameShape
 the frame shape value from the frame style
QSize frameSize
 the size of the widget including any window frame
int frameWidth
 the width of the frame that is drawn.
bool fullScreen
 whether the widget is full screen
QRect geometry
 the geometry of the widget relative to its parent and excluding the window frame
int handleWidth
 the width of the splitter handles
int height
 the height of the widget excluding any window frame
bool isActiveWindow
 whether this widget's window is the active window
Qt::LayoutDirection layoutDirection
 the layout direction for this widget
int lineWidth
 the line width
bool maximized
 whether this widget is maximized
int maximumHeight
 the widget's maximum height
QSize maximumSize
 the widget's maximum size
int maximumWidth
 the widget's maximum width
int midLineWidth
 the width of the mid-line
bool minimized
 whether this widget is minimized (iconified)
int minimumHeight
 the widget's minimum height
QSize minimumSize
 the widget's minimum size
QSize minimumSizeHint
 the recommended minimum size for the widget
int minimumWidth
 the widget's minimum width
bool modal
 whether the widget is a modal widget
bool mouseTracking
 whether mouse tracking is enabled for the widget
QRect normalGeometry
 the geometry of the widget as it will appear when shown as a normal (not maximized or fullscreen) toplevel widget
QString objectName
 the name of this object
bool opaqueResize
 whether resizing is opaque
Qt::Orientation orientation
 the orientation of the splitter
QPalette palette
 the widget's palette
QPoint pos
 the position of the widget within its parent widget
QRect rect
 the internal geometry of the widget excluding any window frame
QSize size
 the size of the widget excluding any window frame
QSize sizeHint
 the recommended size for the widget
QSize sizeIncrement
 the size increment of the widget
QSizePolicy sizePolicy
 the default layout behavior of the widget
QString statusTip
 the widget's status tip
QString styleSheet
 the widget's style sheet
QString toolTip
 the widget's tooltip
bool updatesEnabled
 whether updates are enabled
bool visible
 whether the widget is visible
QString whatsThis
 the widget's What's This help text.
int width
 the width of the widget excluding any window frame
QIcon windowIcon
 the widget's icon
QString windowIconText
 the widget's icon text
Qt::WindowModality windowModality
 which windows are blocked by the modal widget
bool windowModified
 whether the document shown in the window has unsaved changes
double windowOpacity
 The level of opacity for the window.
QString windowTitle
 the window title (caption)
int x
 the x coordinate of the widget relative to its parent including any window frame
int y
 the y coordinate of the widget relative to its parent and including any window frame

Friends

class QCoreApplication
class QCoreApplicationPrivate
struct QMetaObject
class QSplitterHandle
class QThreadData
class QWidget

Related Functions

(Note that these are not member functions.)

QTextStreamoperator<< (QTextStream &ts, const QSplitter &splitter)
QTextStreamoperator>> (QTextStream &ts, QSplitter &splitter)
qFindChild (const QObject *obj, const QString &name=QString(), T dummy=0)
qFindChild (const QObject *obj, const QString &name)
QList< T > qFindChildren (const QObject *obj, const QString &name=QString(), T dummy=0)
QList< T > qFindChildren (const QObject *obj, const QRegExp &regExp)
QList< T > qFindChildren (const QObject *obj, const QString &name)
T * qobject_cast (QObject *object)
 QObjectList
void * qt_find_obj_child (QObject *parent, const char *type, const QString &name)
const Q_GUI_EXPORT QX11Infoqt_x11Info (const QPaintDevice *pd)
 QWidgetList
 WId

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

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