#include <KoZoomStrategy.h>

Inheritance diagram for KoZoomStrategy:

Public Member Functions
void	cancelInteraction () override

void	finishInteraction (Qt::KeyboardModifiers modifiers) override
	Execute the zoom.

void	forceZoomIn ()

void	forceZoomOut ()

	KoZoomStrategy (KoZoomTool tool, KoCanvasController controller, const QPointF &clicked)

Public Member Functions inherited from KoShapeRubberSelectStrategy
KUndo2Command *	createCommand () override

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

	KoShapeRubberSelectStrategy (KoToolBase *tool, const QPointF &clicked, bool useSnapToGrid=false)

void	paint (QPainter &painter, const KoViewConverter &converter) override

Public Member Functions inherited from KoInteractionStrategy
	KoInteractionStrategy (KoToolBase *parent)
	constructor

KoToolBase *	tool () const

virtual	~KoInteractionStrategy ()
	Destructor.

Protected Member Functions
SelectionMode	currentMode () const override

Protected Member Functions inherited from KoShapeRubberSelectStrategy
	KoShapeRubberSelectStrategy (KoShapeRubberSelectStrategyPrivate &)
	constructor

QRectF	selectedRectangle () const

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

Private Attributes
KoCanvasController *	m_controller

bool	m_forceZoomOut

Additional Inherited Members
Protected Types inherited from KoShapeRubberSelectStrategy
enum	SelectionMode { CrossingSelection , CoveringSelection }

Protected Attributes inherited from KoInteractionStrategy
KoInteractionStrategyPrivate *	d_ptr

Detailed Description

//internal This is a strategy for the KoZoomTool which will be used to do the actual zooming

Definition at line 19 of file KoZoomStrategy.h.

Constructor & Destructor Documentation

◆ KoZoomStrategy()

KoZoomStrategy::KoZoomStrategy	(	KoZoomTool *	tool,
		KoCanvasController *	controller,
		const QPointF &	clicked )

constructor

Parameters

tool	the parent tool this strategy is for
controller	the canvas controller that wraps the canvas the tool is acting on.
clicked	the location (in document points) where the interaction starts.

Definition at line 20 of file KoZoomStrategy.cpp.

        : KoShapeRubberSelectStrategy(tool, clicked, false),
        m_controller(controller),
        m_forceZoomOut(false)
{
}

Member Function Documentation

◆ cancelInteraction()

void KoZoomStrategy::cancelInteraction ( )

overridevirtual

This method will undo frames based interactions by calling createCommand() and unexecuting that.

Reimplemented from KoInteractionStrategy.

Definition at line 56 of file KoZoomStrategy.cpp.

{
    Q_D(KoShapeRubberSelectStrategy);
    d->tool->canvas()->updateCanvas(d->selectedRect().normalized() | d->tool->decorationsRect());
}

◆ currentMode()

KoShapeRubberSelectStrategy::SelectionMode KoZoomStrategy::currentMode ( ) const

overrideprotectedvirtual

Reimplemented from KoShapeRubberSelectStrategy.

Definition at line 62 of file KoZoomStrategy.cpp.

{
    return CoveringSelection;
}

References KoShapeRubberSelectStrategy::CoveringSelection.

◆ finishInteraction()

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

overridevirtual

Execute the zoom.

Implements KoInteractionStrategy.

Definition at line 27 of file KoZoomStrategy.cpp.

{
    Q_D(KoShapeRubberSelectStrategy);
 
    const QTransform documentToWidget =
            m_controller->canvas()->viewConverter()->documentToView() *
            m_controller->canvas()->viewConverter()->viewToWidget();
 
    const QRect pixelRect = documentToWidget.mapRect(d->selectedRect()).toRect();
 
    bool m_zoomOut = m_forceZoomOut;
    if (modifiers & Qt::ControlModifier) {
        m_zoomOut = !m_zoomOut;
    }
 
    auto makeStillPoint = [&] () -> KoViewTransformStillPoint {
        const QPointF center = pixelRect.center();
        return m_controller->canvas()->viewConverter()->makeWidgetStillPoint(center);
    };
 
    if (m_zoomOut) {
        m_controller->zoomOut(makeStillPoint());
    } else if (pixelRect.width() > 5 && pixelRect.height() > 5) {
        m_controller->zoomTo(pixelRect);
    } else {
        m_controller->zoomIn(makeStillPoint());
    }
}

References KoCanvasController::canvas(), KoViewConverter::documentToView(), m_controller, m_forceZoomOut, KoViewConverter::makeWidgetStillPoint(), KoCanvasBase::viewConverter(), KoViewConverter::viewToWidget(), KoCanvasController::zoomIn(), KoCanvasController::zoomOut(), and KoCanvasController::zoomTo().

◆ forceZoomIn()

void KoZoomStrategy::forceZoomIn ( )

Definition at line 72 of file KoZoomStrategy.cpp.

{
    m_forceZoomOut = false;
}

References m_forceZoomOut.

◆ forceZoomOut()

void KoZoomStrategy::forceZoomOut ( )

Definition at line 67 of file KoZoomStrategy.cpp.

{
    m_forceZoomOut = true;
}

References m_forceZoomOut.

Member Data Documentation

◆ m_controller

KoCanvasController* KoZoomStrategy::m_controller

private

Definition at line 40 of file KoZoomStrategy.h.

◆ m_forceZoomOut

bool KoZoomStrategy::m_forceZoomOut

private

Definition at line 42 of file KoZoomStrategy.h.

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

libs/flake/tools/KoZoomStrategy.h
libs/flake/tools/KoZoomStrategy.cpp

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members