i_LayoutMngr Class Reference

dGB's layout manager More...

Inheritance diagram for i_LayoutMngr:

Public Member Functions
	i_LayoutMngr (mQtclass(QWidget *) prnt, const char *name, uiObjectBody &mngbdy)
virtual	~i_LayoutMngr ()
virtual void	addItem (mQtclass(QLayoutItem *))
void	addItem (i_LayoutItem *)
virtual	mQtclass (QSize) sizeHint() const
virtual	mQtclass (QSize) minimumSize() const
virtual	mQtclass (QLayoutItem *) itemAt(int idx) const
virtual	mQtclass (QLayoutItem *) takeAt(int idx)
virtual int	count () const
virtual void	invalidate ()
virtual void	updatedAlignment (LayoutMode)
virtual void	initChildLayout (LayoutMode)
bool	attach (constraintType, mQtclass(QWidget &), mQtclass(QWidget *), int, bool reciprocal=true)
const uiRect &	curpos (LayoutMode) const
uiRect &	curpos (LayoutMode)
uiRect	winpos (LayoutMode) const
void	forceChildrenRedraw (uiObjectBody *, bool deep)
void	childrenClear (uiObject *)
bool	isChild (uiObject *)
int	childStretch (bool hor) const
int	borderSpace () const
int	horSpacing () const
int	verSpacing () const
void	setHSpacing (int s)
void	setVSpacing (int s)
void	setBorderSpace (int s)
void	setIsMain (bool yn)
void	layoutChildren (LayoutMode, bool finalLoop=false)
Public Member Functions inherited from NamedCallBacker
	NamedCallBacker (const char *nm=0)
	NamedCallBacker (const NamedCallBacker &)
bool	operator== (const NamedCallBacker &oth) const
bool	operator== (const NamedObject &oth) const
virtual Notifier< NamedCallBacker > &	objectToBeDeleted () const
Public Member Functions inherited from CallBacker
	CallBacker ()
	CallBacker (const CallBacker &)
virtual	~CallBacker ()
bool	attachCB (const NotifierAccess &, const CallBack &, bool onlyifnew=false) const
bool	attachCB (const NotifierAccess *notif, const CallBack &cb, bool onlyifnew=false) const
void	detachCB (const NotifierAccess &, const CallBack &) const
void	detachCB (const NotifierAccess *notif, const CallBack &cb) const
bool	isNotifierAttached (const NotifierAccess *) const
	Only for debugging purposes, don't use. More...
virtual bool	isCapsule () const
void	stopReceivingNotifications () const
Public Member Functions inherited from NamedObject
	NamedObject (const char *nm=0)
	NamedObject (const NamedObject &oth)
virtual	~NamedObject ()
NamedObject &	operator= (const NamedObject &)
bool	operator== (const NamedObject &oth) const
virtual const OD::String &	name () const
virtual BufferString	getName () const
virtual void	setName (const char *nm)
bool	getNameFromPar (const IOPar &)
void	putNameInPar (IOPar &) const

Private Member Functions
void	setGeometry (const mQtclass(QRect &))
void	doLayout (LayoutMode m, const mQtclass(QRect &) r) const
void	doLayout (LayoutMode m, const mQtclass(QRect &))
void	itemDel (CallBacker *)
void	moveChildrenTo (int, int, LayoutMode)
void	fillResizeList (ObjectSet< resizeItem > &, bool)
bool	tryToGrowItem (resizeItem &, const int, const int, int, int, const mQtclass(QRect &), int)
void	resizeTo (const mQtclass(QRect &))
void	childrenCommitGeometrySet (bool)
uiRect	childrenRect (LayoutMode)
	mQtclass (QRect) prefGeometry
void	startPoptimer ()
void	popTimTick (CallBacker *)

Private Attributes
ObjectSet< i_LayoutItem >	childrenlist
uiRect	layoutpos [nLayoutMode]
bool	minimumDone
bool	preferredDone
bool	prefposStored
bool	ismain
int	hspacing
int	vspacing
int	borderspc
uiObjectBody &	managedBody
Timer &	poptimer
bool	popped_up
bool	timer_running

Friends
class	i_LayoutItem
class	uiGroupParentBody

Additional Inherited Members
Static Public Member Functions inherited from CallBacker
static void	createReceiverForCurrentThread ()
static void	removeReceiverForCurrentThread ()
Protected Member Functions inherited from NamedCallBacker
void	sendDelNotif () const
Protected Member Functions inherited from CallBacker
void	detachAllNotifiers () const
	Call from the destructor of your inherited object. More...
Protected Attributes inherited from NamedCallBacker
Notifier< NamedCallBacker >	delnotif_
Threads::Atomic< bool >	delalreadytriggered_
Protected Attributes inherited from NamedObject
BufferString	name_

Detailed Description

dGB's layout manager

This is our own layout manager for Qt. It manages widgets, etc. using constraints like "rightOf" etc.

Because the i_LayoutMngr is a QLayout, it can be used by QWidgets to automatically add new children to the manager when they are constructed with a QWidget (with layout) as parent.

The actual adding to a manager is is done using QEvents. Whenever a QObject inserts a new child, it posts a ChildInserted event to itself. However, a QLayout constructor installs an event filter on its parent, and it registers itself to the parent as its layouter (setWidgetLayout), so future calls to the parent's sizeHint(), etc. are redirected to this new layoutmanager.

If setAutoAdd() is called on a layoutmanager, and the layout manager is "topLevel", i.e. THE manager for a certain widget, then whenever a new widget is constructed with the manager's parent widget as parent, the new widget is automatically added (by Qt) to the manager by the manager's eventfilter, using 'addItem( new QWidgetItem( w ) )'. Unfortunately, Qt does not call addItem before the main application loop is running. This results to the problem that no attachments can be used until the main loop is running when we let Qt handle the addItem() calls. Therefore, we explicitily call addItem() on the correct layout manager at construction uiObjects. AutoAdd is also enabled in case someone wants to eses native Qt methods. (Multiple insertion is protected. Manager checks if widget already present).

Constructor & Destructor Documentation

i_LayoutMngr::i_LayoutMngr	(	mQtclass(QWidget *)	prnt,
		const char *	name,
		uiObjectBody &	mngbdy
	)

virtual i_LayoutMngr::~i_LayoutMngr ( )

virtual

Member Function Documentation

virtual void i_LayoutMngr::addItem ( mQtclass(QLayoutItem *)  )

virtual

void i_LayoutMngr::addItem

(

i_LayoutItem *

)

bool i_LayoutMngr::attach	(	constraintType	,
		mQtclass(QWidget &)	,
		mQtclass(QWidget *)	,
		int	,
		bool	reciprocal = true
	)

int i_LayoutMngr::borderSpace ( ) const

inline

void i_LayoutMngr::childrenClear

(

uiObject *

)

void i_LayoutMngr::childrenCommitGeometrySet ( bool  )

private

uiRect i_LayoutMngr::childrenRect ( LayoutMode  )

private

int i_LayoutMngr::childStretch

(

bool

hor

)

const

virtual int i_LayoutMngr::count ( ) const

virtual

const uiRect& i_LayoutMngr::curpos

(

LayoutMode

)

const

uiRect& i_LayoutMngr::curpos

(

LayoutMode

)

void i_LayoutMngr::doLayout ( LayoutMode  m, const mQtclass(QRect &)  r  ) const

inlineprivate

void i_LayoutMngr::doLayout ( LayoutMode  m, const   mQtclassQRect &  )

private

void i_LayoutMngr::fillResizeList ( ObjectSet< resizeItem > &  , bool    )

private

void i_LayoutMngr::forceChildrenRedraw	(	uiObjectBody *	,
		bool	deep
	)

int i_LayoutMngr::horSpacing

(

)

const

virtual void i_LayoutMngr::initChildLayout ( LayoutMode  )

virtual

virtual void i_LayoutMngr::invalidate ( )

virtual

bool i_LayoutMngr::isChild

(

uiObject *

)

void i_LayoutMngr::itemDel ( CallBacker *  )

private

void i_LayoutMngr::layoutChildren	(	LayoutMode	,
		bool	finalLoop = false
	)

void i_LayoutMngr::moveChildrenTo ( int  , int  , LayoutMode    )

private

virtual i_LayoutMngr::mQtclass ( QSize  ) const

virtual

virtual i_LayoutMngr::mQtclass ( QSize  ) const

virtual

virtual i_LayoutMngr::mQtclass ( QLayoutItem *  ) const

virtual

virtual i_LayoutMngr::mQtclass ( QLayoutItem *  )

virtual

i_LayoutMngr::mQtclass ( QRect  )

private

void i_LayoutMngr::popTimTick ( CallBacker *  )

private

void i_LayoutMngr::resizeTo ( const   mQtclassQRect & )

private

void i_LayoutMngr::setBorderSpace ( int  s )

inline

void i_LayoutMngr::setGeometry ( const   mQtclassQRect & )

private

void i_LayoutMngr::setHSpacing ( int  s )

inline

void i_LayoutMngr::setIsMain ( bool  yn )

inline

void i_LayoutMngr::setVSpacing ( int  s )

inline

void i_LayoutMngr::startPoptimer ( )

private

bool i_LayoutMngr::tryToGrowItem ( resizeItem &  , const int  , const int  , int  , int  , const   mQtclassQRect &, int    )

private

virtual void i_LayoutMngr::updatedAlignment ( LayoutMode  )

virtual

int i_LayoutMngr::verSpacing ( ) const

inline

uiRect i_LayoutMngr::winpos

(

LayoutMode

)

const

Friends And Related Function Documentation

friend class i_LayoutItem

friend

friend class uiGroupParentBody

friend

Member Data Documentation

int i_LayoutMngr::borderspc

private

ObjectSet<i_LayoutItem> i_LayoutMngr::childrenlist

private

int i_LayoutMngr::hspacing

private

bool i_LayoutMngr::ismain

private

uiRect i_LayoutMngr::layoutpos[nLayoutMode]

private

uiObjectBody& i_LayoutMngr::managedBody

private

bool i_LayoutMngr::minimumDone

private

bool i_LayoutMngr::popped_up

private

Timer& i_LayoutMngr::poptimer

private

bool i_LayoutMngr::preferredDone

private

bool i_LayoutMngr::prefposStored

private

bool i_LayoutMngr::timer_running

private

int i_LayoutMngr::vspacing

private