KoPathPointMoveStrategy Class Reference

Strategy for moving points of a path shape. More...

#include <KoPathPointMoveStrategy.h>

Inheritance diagram for KoPathPointMoveStrategy:

Public Member Functions
KUndo2Command *	createCommand () override
void	finishInteraction (Qt::KeyboardModifiers modifiers) override
void	handleMouseMove (const QPointF &mouseLocation, Qt::KeyboardModifiers modifiers) override
	KoPathPointMoveStrategy (KoPathTool *tool, const QPointF &mousePosition, const QPointF &pointPosition)
	~KoPathPointMoveStrategy () override
Public Member Functions inherited from KoInteractionStrategy
virtual void	cancelInteraction ()
	KoInteractionStrategy (KoToolBase *parent)
	constructor
virtual void	paint (QPainter &painter, const KoViewConverter &converter)
KoToolBase *	tool () const
virtual	~KoInteractionStrategy ()
	Destructor.

Private Attributes
QScopedPointer< KUndo2Command >	m_intermediateCommand
QPointF	m_move
	the accumulated point move amount
QPointF	m_startMousePosition
QPointF	m_startPointPosition
KoPathTool *	m_tool
	pointer to the path tool

Additional Inherited Members
Protected Member Functions inherited from KoInteractionStrategy
uint	decorationThickness () const
uint	grabSensitivity () const
	Convenience function to get the global grab sensitivity.
uint	handleRadius () const
	Convenience function to get the global handle radius.
	KoInteractionStrategy (KoInteractionStrategyPrivate &)
	constructor
Protected Attributes inherited from KoInteractionStrategy
KoInteractionStrategyPrivate *	d_ptr

Detailed Description

Strategy for moving points of a path shape.

Definition at line 21 of file KoPathPointMoveStrategy.h.

Constructor & Destructor Documentation

KoPathPointMoveStrategy()

KoPathPointMoveStrategy::KoPathPointMoveStrategy	(	KoPathTool *	tool,
		const QPointF &	mousePosition,
		const QPointF &	pointPosition )

Definition at line 20 of file KoPathPointMoveStrategy.cpp.

    : KoInteractionStrategy(*(new KoInteractionStrategyPrivate(tool))),
    m_startMousePosition(mousePosition),
    m_startPointPosition(pointPosition),
    m_tool(tool)
{
}

~KoPathPointMoveStrategy()

KoPathPointMoveStrategy::~KoPathPointMoveStrategy ( )

override

Definition at line 28 of file KoPathPointMoveStrategy.cpp.

{
}

Member Function Documentation

createCommand()

KUndo2Command * KoPathPointMoveStrategy::createCommand ( )

overridevirtual

For interactions that are undo-able this method should be implemented to return such a command. Implementations should return 0 otherwise.

Returns

a command, or 0.

Implements KoInteractionStrategy.

Definition at line 59 of file KoPathPointMoveStrategy.cpp.

{
    if (m_intermediateCommand) {
        return new KisCommandUtils::SkipFirstRedoWrapper(m_intermediateCommand.take());
    }
    return nullptr;
}

References m_intermediateCommand.

finishInteraction()

void KoPathPointMoveStrategy::finishInteraction ( Qt::KeyboardModifiers modifiers )

overridevirtual

Override to make final changes to the data on the end of an interaction.

Implements KoInteractionStrategy.

Definition at line 54 of file KoPathPointMoveStrategy.cpp.

{
    Q_UNUSED(modifiers);
}

handleMouseMove()

void KoPathPointMoveStrategy::handleMouseMove ( const QPointF & mouseLocation, Qt::KeyboardModifiers modifiers )

overridevirtual

Extending classes should implement this method to update the selectedShapes based on the new mouse position.

Parameters

mouseLocation	the new location in pt
modifiers	OR-ed set of keys pressed.

Implements KoInteractionStrategy.

Definition at line 32 of file KoPathPointMoveStrategy.cpp.

{
    QPointF deltaMovement = mouseLocation - m_startMousePosition;
    QPointF newPosition = m_tool->canvas()->snapGuide()->snap(m_startPointPosition + deltaMovement, modifiers);
    QPointF move = newPosition - m_startPointPosition;
 
    if (modifiers & Qt::ShiftModifier) {
        // Limit change to one direction only
        move = snapToClosestAxis(move);
    }
 
    KoPathToolSelection * selection = dynamic_cast<KoPathToolSelection*>(m_tool->selection());
    if (! selection)
        return;
 
    KisCommandUtils::redoAndMergeIntoAccumulatingCommand(
        new KoPathPointMoveCommand(selection->selectedPointsData(), move - m_move),
        m_intermediateCommand);
 
    m_move = move;
}

References KoToolBase::canvas(), m_intermediateCommand, m_move, m_startMousePosition, m_startPointPosition, m_tool, KisCommandUtils::redoAndMergeIntoAccumulatingCommand(), KoPathToolSelection::selectedPointsData(), KoPathTool::selection(), KoSnapGuide::snap(), KoCanvasBase::snapGuide, and snapToClosestAxis().

Member Data Documentation

m_intermediateCommand

QScopedPointer<KUndo2Command> KoPathPointMoveStrategy::m_intermediateCommand

private

Definition at line 37 of file KoPathPointMoveStrategy.h.

m_move

QPointF KoPathPointMoveStrategy::m_move

private

the accumulated point move amount

Definition at line 34 of file KoPathPointMoveStrategy.h.

m_startMousePosition

QPointF KoPathPointMoveStrategy::m_startMousePosition

private

Definition at line 31 of file KoPathPointMoveStrategy.h.

m_startPointPosition

QPointF KoPathPointMoveStrategy::m_startPointPosition

private

Definition at line 32 of file KoPathPointMoveStrategy.h.

m_tool

KoPathTool* KoPathPointMoveStrategy::m_tool

private

pointer to the path tool

Definition at line 36 of file KoPathPointMoveStrategy.h.

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

• libs/flake/tools/KoPathPointMoveStrategy.h
• libs/flake/tools/KoPathPointMoveStrategy.cpp