Lancelot::ColumnLayout Class Reference

#include <ColumnLayout.h>

Inheritance diagram for Lancelot::ColumnLayout:

Classes
class	ColumnSizer

Public Member Functions
	ColumnLayout (QGraphicsLayoutItem *parent=0)
	~ColumnLayout ()
int	columnCount () const
L_Override int	count () const
L_Override QGraphicsLayoutItem *	itemAt (int i) const
QGraphicsWidget *	pop ()
void	push (QGraphicsWidget *widget)
L_Override void	removeAt (int index)
void	setColumnCount (int count)
L_Override void	setGeometry (const QRectF &rect)
void	setSizer (ColumnSizer *sizer)
L_Override QSizeF	sizeHint (Qt::SizeHint which, const QSizeF &constraint=QSizeF()) const
ColumnSizer *	sizer () const
Public Member Functions inherited from QGraphicsLayout
	QGraphicsLayout (QGraphicsLayoutItem *parent)
	~QGraphicsLayout ()
void	activate ()
virtual int	count () const =0
virtual void	getContentsMargins (qreal *left, qreal *top, qreal *right, qreal *bottom) const
virtual void	invalidate ()
bool	isActivated () const
virtual QGraphicsLayoutItem *	itemAt (int i) const =0
virtual void	removeAt (int index)=0
void	setContentsMargins (qreal left, qreal top, qreal right, qreal bottom)
virtual void	updateGeometry ()
virtual void	widgetEvent (QEvent *e)
Public Member Functions inherited from QGraphicsLayoutItem
	QGraphicsLayoutItem (QGraphicsLayoutItem *parent, bool isLayout)
virtual	~QGraphicsLayoutItem ()
QRectF	contentsRect () const
QSizeF	effectiveSizeHint (Qt::SizeHint which, const QSizeF &constraint) const
QRectF	geometry () const
QGraphicsItem *	graphicsItem () const
bool	isLayout () const
qreal	maximumHeight () const
QSizeF	maximumSize () const
qreal	maximumWidth () const
qreal	minimumHeight () const
QSizeF	minimumSize () const
qreal	minimumWidth () const
bool	ownedByLayout () const
QGraphicsLayoutItem *	parentLayoutItem () const
qreal	preferredHeight () const
QSizeF	preferredSize () const
qreal	preferredWidth () const
void	setMaximumHeight (qreal height)
void	setMaximumSize (const QSizeF &size)
void	setMaximumSize (qreal w, qreal h)
void	setMaximumWidth (qreal width)
void	setMinimumHeight (qreal height)
void	setMinimumSize (const QSizeF &size)
void	setMinimumSize (qreal w, qreal h)
void	setMinimumWidth (qreal width)
void	setParentLayoutItem (QGraphicsLayoutItem *parent)
void	setPreferredHeight (qreal height)
void	setPreferredSize (const QSizeF &size)
void	setPreferredSize (qreal w, qreal h)
void	setPreferredWidth (qreal width)
void	setSizePolicy (const QSizePolicy &policy)
void	setSizePolicy (QSizePolicy::Policy hPolicy, QSizePolicy::Policy vPolicy, QSizePolicy::ControlType controlType)
QSizePolicy	sizePolicy () const

Additional Inherited Members
Static Public Member Functions inherited from QGraphicsLayout
bool	instantInvalidatePropagation ()
void	setInstantInvalidatePropagation (bool enable)
Protected Member Functions inherited from QGraphicsLayout
void	addChildLayoutItem (QGraphicsLayoutItem *layoutItem)
Protected Member Functions inherited from QGraphicsLayoutItem
void	setGraphicsItem (QGraphicsItem *item)
void	setOwnedByLayout (bool ownership)
virtual QSizeF	sizeHint (Qt::SizeHint which, const QSizeF &constraint) const =0

Detailed Description

This layout is not a general purpose layout, and should not be used as such.

Column layout shows items in columns. It shows only n last items pushed into it. Items can be pushed and popped like on stack, inserting an item before the end of the list is not supported, and, likewise, removing items except the last one is not supported.

To make that clear, pop and push functions are introduced. Trying to invoke one of the standard item manipulation functions from QGraphicsLayout will do nothing.

Since ColumnLayout needs the ability to hide certain items in it, it works only for QGraphicsWidget subclasses.

Definition at line 49 of file ColumnLayout.h.

Constructor & Destructor Documentation

Lancelot::ColumnLayout::ColumnLayout

(

QGraphicsLayoutItem *

parent = 0

)

Creates a new Lancelot::ColumnLayout.

Parameters

parent

parent layout item

Definition at line 302 of file ColumnLayout.cpp.

Lancelot::ColumnLayout::~ColumnLayout

(

)

Destroys Lancelot::ColumnLayout.

Definition at line 308 of file ColumnLayout.cpp.

Member Function Documentation

int Lancelot::ColumnLayout::columnCount

(

)

const

Returns

the number of visible columns

Definition at line 297 of file ColumnLayout.cpp.

int Lancelot::ColumnLayout::count

(

)

const

Definition at line 323 of file ColumnLayout.cpp.

QGraphicsLayoutItem * Lancelot::ColumnLayout::itemAt

(

int

i

)

const

Definition at line 318 of file ColumnLayout.cpp.

QGraphicsWidget * Lancelot::ColumnLayout::pop

(

)

Removes the last widget from the stack and returns it.

Returns

the last widget in stack

Definition at line 285 of file ColumnLayout.cpp.

void Lancelot::ColumnLayout::push

(

QGraphicsWidget *

widget

)

Pushes the specified widget to the end of stack.

Definition at line 280 of file ColumnLayout.cpp.

void Lancelot::ColumnLayout::removeAt

(

int

index

)

Not implemented.

See class description.

Definition at line 313 of file ColumnLayout.cpp.

void Lancelot::ColumnLayout::setColumnCount

(

int

count

)

Sets the maximum number of visible columns.

Definition at line 290 of file ColumnLayout.cpp.

void Lancelot::ColumnLayout::setGeometry ( const QRectF &  rect )

virtual

Reimplemented from QGraphicsLayoutItem.

Definition at line 328 of file ColumnLayout.cpp.

void Lancelot::ColumnLayout::setSizer

(

ColumnLayout::ColumnSizer *

sizer

)

Sets the ColumnSizer object.

Definition at line 260 of file ColumnLayout.cpp.

QSizeF Lancelot::ColumnLayout::sizeHint	(	Qt::SizeHint	which,
		const QSizeF &	constraint = QSizeF()
	)		const

Definition at line 272 of file ColumnLayout.cpp.

ColumnLayout::ColumnSizer * Lancelot::ColumnLayout::sizer

(

)

const

Returns

the current ColumnSizer

Definition at line 267 of file ColumnLayout.cpp.

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

• ColumnLayout.h
• ColumnLayout.cpp