QSplitter Class Reference
The QSplitter class implements a splitter widget.
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#include <qsplitter.h>
Inherits QFrame.
List of all member functions.
Public Members
enum
ResizeMode { Stretch, KeepSize, FollowSizeHint }
QSplitter ( QWidget * parent = 0, const char * name = 0 )
QSplitter ( Orientation o, QWidget * parent = 0, const char * name = 0 )
QValueList<int>
sizes () const
Properties
Orientation
orientation - the orientation of the splitter
Protected Members
virtual void
drawSplitter ( QPainter * p, QCOORD x, QCOORD y, QCOORD w, QCOORD h )
void
getRange ( int id, int * min, int * max )
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.
To show a QListBox, a QListView and a QTextEdit side by side:
QSplitter *split = new QSplitter( parent );
QListBox *lb = new QListBox( split );
QListView *lv = new QListView( split );
QTextEdit *ed = new QTextEdit( split );
In QSplitter the boundary can be either horizontal or vertical. The
default is horizontal (the children are side by side) but you
can use setOrientation( QSplitter::Vertical ) to set it to vertical.
By default, all widgets can be as large or as small as the user
wishes, down to minimumSizeHint(). You can also use setMinimumSize() and
setMaximumSize() on the children. Use setResizeMode() to specify
that a widget should keep its size when the splitter is resized.
Although QSplitter normally resizes the children only at the end of a
resize operation, if you call setOpaqueResize( TRUE ) the
widgets are resized as often as possible.
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.
If you hide() a child its space will be distributed among the other
children. It will be reinstated when you show() it again. It is also
possible to reorder the widgets within the splitter using
moveToFirst() and moveToLast().
See also QTabBar and Organizers.
Member Type Documentation
QSplitter::ResizeMode
This enum type describes how QSplitter will resize each of its child widgets. The currently defined values are:
- QSplitter::Stretch - the widget will be resized when the splitter
itself is resized.
- QSplitter::KeepSize - QSplitter will try to keep this widget's size
unchanged.
- QSplitter::FollowSizeHint - QSplitter will resize the widget when the
widget's size hint changes.
Member Function Documentation
QSplitter::QSplitter ( QWidget * parent = 0, const char * name = 0 )
Constructs a horizontal splitter with the parent and name arguments being passed on to the QFrame constructor.
QSplitter::QSplitter ( Orientation o, QWidget * parent = 0, const char * name = 0 )
Constructs a splitter with orientation o with the parent
and name arguments being passed on to the QFrame constructor.
QSplitter::~QSplitter ()
Destroys the splitter and any children.
int QSplitter::adjustPos ( int p, int id ) [protected]
Returns the closest legal position to p of the splitter with id id.
See also idAfter().
void QSplitter::childEvent ( QChildEvent * c ) [virtual protected]
Tells the splitter that a child widget has been inserted or removed.
The event is passed in c.
Reimplemented from QObject.
void QSplitter::drawSplitter ( QPainter * p, QCOORD x, QCOORD y, QCOORD w, QCOORD h ) [virtual protected]
Draws the splitter handle in the rectangle described by x, y,
w, h using painter p.
See also QStyle::drawSplitter.
void QSplitter::getRange ( int id, int * min, int * max ) [protected]
Returns the valid range of the splitter with id id in *min and *max.
See also idAfter().
int QSplitter::idAfter ( QWidget * w ) const [protected]
Returns the id of the splitter to the right of or below the widget w,
or 0 if there is no such splitter
(i.e. it is either not in this QSplitter or it is at the end).
void QSplitter::moveSplitter ( QCOORD p, int id ) [protected]
Moves the left/top edge of the splitter handle with id id as
close as possible to position p, which is the distance from the
left (or top) edge of the widget.
For Arabic and Hebrew the layout is reversed, and using this
function to set the position of the splitter might lead to
unexpected results, since in Arabic and Hebrew the position of
splitter one is to the left of the position of splitter zero.
See also idAfter().
void QSplitter::moveToFirst ( QWidget * w )
Moves widget w to the leftmost/top position.
Example: splitter/splitter.cpp.
void QSplitter::moveToLast ( QWidget * w )
Moves widget w to the rightmost/bottom position.
bool QSplitter::opaqueResize () const
Returns TRUE if opaque resize is on; otherwise returns FALSE.
See also setOpaqueResize().
Orientation QSplitter::orientation () const
Returns the orientation of the splitter.
See the "orientation" property for details.
void QSplitter::refresh ()
Updates the splitter's state. You should not need to call this
function.
void QSplitter::setOpaqueResize ( bool on = TRUE ) [virtual]
If on is TRUE then opaque resizing is turned on; otherwise
opaque resizing is turned off.
Opaque resizing is initially turned off.
See also opaqueResize().
Examples: mainlyQt/editor.cpp and splitter/splitter.cpp.
void QSplitter::setOrientation ( Orientation ) [virtual]
Sets the orientation of the splitter.
See the "orientation" property for details.
void QSplitter::setResizeMode ( QWidget * w, ResizeMode mode ) [virtual]
Sets resize mode of w to mode.
See also ResizeMode.
Examples: fileiconview/mainwindow.cpp, listviews/listviews.cpp, network/ftpclient/ftpmainwindow.cpp and splitter/splitter.cpp.
void QSplitter::setRubberband ( int p ) [virtual protected]
Shows a rubber band at position p. If p is negative, the
rubber band is removed.
void QSplitter::setSizes ( QValueList<int> list )
Sets the size parameters to the values given in list.
If the splitter is horizontal, the values set the sizes from
left to right. If it is vertical, the sizes are applied from
top to bottom.
Extra values in list are ignored.
If list contains too few values, the result is undefined
but the program will still be well-behaved.
See also sizes().
QValueList<int> QSplitter::sizes () const
Returns a list of the size parameters of all the widgets in this
splitter.
Giving the values to another splitter's setSizes() function will
produce a splitter with the same layout as this one.
See also setSizes().
Property Documentation
This property holds the orientation of the splitter.
By default the orientation is horizontal (the widgets are side by side).
The possible orientations are Qt:Vertical and Qt::Horizontal.
Set this property's value with setOrientation() and get this property's value with orientation().
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