hal::PlacementHint Class Reference

The PlacementHint class object provides hints for the layouter how new box objects are placed on a view. In standard mode placement is done using the most compact squere-like arrangement. Alternatively new box objects can be placed to the left or right to a node which serves as 'origin'. More...

#include <gui_def.h>

Collaboration diagram for hal::PlacementHint:

Public Types
enum	PlacementModeType { Standard = 0 , PreferLeft = 1 , PreferRight = 2 , GridPosition = 3 }
	The PlacementModeType enum either most compact arrangement (Standard) or to the left or right of given origin. More...

Public Member Functions
	PlacementHint (PlacementModeType mod=Standard, const Node &orign=Node())
	PlacementHint standard constructor. More...
	PlacementHint (const GridPlacement &gridPlc)
	PlacementHint constructor for grid placement. More...
PlacementModeType	mode () const
	mode getter for placement mode type More...
Node	preferredOrigin () const
	preferredOrigin getter for placement origin if any. More...
bool	operator< (const PlacementHint &rhs) const
	operator < provide an order structure for placement hints More...
bool	operator== (const PlacementHint &rhs) const
	operator == test whether two placement hints are equal More...
void	addGridPosition (const Node &nd, const QPoint &p)
const QHash< Node, QPoint > &	gridPosition () const

Detailed Description

The PlacementHint class object provides hints for the layouter how new box objects are placed on a view. In standard mode placement is done using the most compact squere-like arrangement. Alternatively new box objects can be placed to the left or right to a node which serves as 'origin'.

Definition at line 195 of file gui_def.h.

Member Enumeration Documentation

PlacementModeType

enum hal::PlacementHint::PlacementModeType

The PlacementModeType enum either most compact arrangement (Standard) or to the left or right of given origin.

Enumerator
Standard
PreferLeft
PreferRight
GridPosition

Definition at line 202 of file gui_def.h.

Constructor & Destructor Documentation

PlacementHint() [1/2]

hal::PlacementHint::PlacementHint ( PlacementModeType  mod = Standard, const Node &  orign = Node()  )

inline

PlacementHint standard constructor.

Parameters

mod	placement mode must be either Standard or PreferLeft or PreferRight
orign	node to start from when PreferLeft or PreferRight are set

Definition at line 209 of file gui_def.h.

PlacementHint() [2/2]

hal::PlacementHint::PlacementHint ( const GridPlacement &  gridPlc )

inline

PlacementHint constructor for grid placement.

Parameters

gridPlc

Hash node to position

Definition at line 216 of file gui_def.h.

Member Function Documentation

addGridPosition()

void hal::PlacementHint::addGridPosition ( const Node &  nd, const QPoint &  p  )

inline

Assigns a given node the given position. Stores it internally.

Parameters

nd	- The node.
p	- The position

Definition at line 263 of file gui_def.h.

References QHash::insert().

Referenced by hal::ActionFoldModule::exec(), hal::ActionRemoveItemsFromObject::exec(), hal::ActionUnfoldModule::exec(), hal::GraphContextManager::openNetEndpointsInView(), and hal::GraphContext::unfoldModule().

gridPosition()

const QHash<Node,QPoint>& hal::PlacementHint::gridPosition ( ) const

inline

Get the data structure containing the node - position assignments.

Returns

The QHash that maps nodes to positions.

Definition at line 273 of file gui_def.h.

Referenced by hal::StandardGraphLayouter::add(), and hal::ActionAddItemsToObject::writeToXml().

mode()

PlacementModeType hal::PlacementHint::mode ( ) const

inline

mode getter for placement mode type

Returns

either Standard or PreferLeft or PreferRight

Definition at line 223 of file gui_def.h.

Referenced by hal::GraphContext::add(), hal::StandardGraphLayouter::add(), hal::GraphContext::unfoldModule(), and hal::ActionAddItemsToObject::writeToXml().

operator<()

bool hal::PlacementHint::operator< ( const PlacementHint &  rhs ) const

inline

operator < provide an order structure for placement hints

Parameters

rhs	the other placement hint to compare with

Returns

true if placement hint is 'smaller' according to test

Definition at line 238 of file gui_def.h.

operator==()

bool hal::PlacementHint::operator== ( const PlacementHint &  rhs ) const

inline

operator == test whether two placement hints are equal

Parameters

rhs	the other placement hint to compare with

Returns

true if placement hints have same placement mode type and origin

Definition at line 252 of file gui_def.h.

preferredOrigin()

Node hal::PlacementHint::preferredOrigin ( ) const

inline

preferredOrigin getter for placement origin if any.

Returns

the Node object

It can be tested by preferredOrigin().isNull if no origin has been set.

Definition at line 231 of file gui_def.h.

Referenced by hal::StandardGraphLayouter::add(), and hal::ActionAddItemsToObject::writeToXml().

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

• /home/runner/work/hal/hal/plugins/gui/include/gui/gui_def.h