#include <SvgChangeTextPathInfoStrategy.h>

Inheritance diagram for SvgChangeTextPathInfoStrategy:

Public Member Functions
void	cancelInteraction () override

KUndo2Command *	createCommand () override

void	finishInteraction (Qt::KeyboardModifiers modifiers) override

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

	SvgChangeTextPathInfoStrategy (SvgTextTool tool, KoSvgTextShape shape, const QPointF &clicked, int textCursorPos)

	~SvgChangeTextPathInfoStrategy () override=default

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

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

KoToolBase *	tool () const

virtual	~KoInteractionStrategy ()
	Destructor.

Private Attributes
QPointF	m_currentMousePos

KoSvgText::TextOnPathInfo	m_oldInfo

KoSvgTextShape *	m_shape

int	m_textCursorPos

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

Definition at line 17 of file SvgChangeTextPathInfoStrategy.h.

Constructor & Destructor Documentation

◆ SvgChangeTextPathInfoStrategy()

SvgChangeTextPathInfoStrategy::SvgChangeTextPathInfoStrategy	(	SvgTextTool *	tool,
		KoSvgTextShape *	shape,
		const QPointF &	clicked,
		int	textCursorPos )

Definition at line 16 of file SvgChangeTextPathInfoStrategy.cpp.

    :KoInteractionStrategy(tool)
    , m_shape(shape)
    , m_currentMousePos(clicked)
    , m_textCursorPos(textCursorPos)
{
    KoSvgTextNodeIndex index = m_shape->topLevelNodeForPos(m_textCursorPos);
    m_oldInfo = *(index.textPathInfo());
 
}

References m_oldInfo, m_shape, m_textCursorPos, KoSvgTextNodeIndex::textPathInfo(), and KoSvgTextShape::topLevelNodeForPos().

◆ ~SvgChangeTextPathInfoStrategy()

SvgChangeTextPathInfoStrategy::~SvgChangeTextPathInfoStrategy ( )

overridedefault

Member Function Documentation

◆ cancelInteraction()

void SvgChangeTextPathInfoStrategy::cancelInteraction ( )

overridevirtual

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

Reimplemented from KoInteractionStrategy.

Definition at line 92 of file SvgChangeTextPathInfoStrategy.cpp.

{
    KUndo2Command *cmd = new SvgTextPathInfoChangeCommand(m_shape, m_textCursorPos, m_oldInfo);
    if (cmd) {
        cmd->undo();
    }
    tool()->repaintDecorations();
}

References m_oldInfo, m_shape, m_textCursorPos, KoToolBase::repaintDecorations(), KoInteractionStrategy::tool(), and KUndo2Command::undo().

◆ createCommand()

KUndo2Command * SvgChangeTextPathInfoStrategy::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 40 of file SvgChangeTextPathInfoStrategy.cpp.

{
    SvgTextTool *const tool = qobject_cast<SvgTextTool *>(this->tool());
    KoSvgTextNodeIndex index = m_shape->topLevelNodeForPos(m_textCursorPos);
    KoShape *shape = index.textPath();
    if (!shape) {
        return nullptr;
    }
 
    KoPathShape *path = dynamic_cast<KoPathShape*>(shape);
    KoSvgText::TextOnPathInfo info;
 
    const qreal grab = tool->grabSensitivityInPt()*4;
    QRectF roi = QRect(0, 0, grab, grab);
    roi.moveCenter(m_currentMousePos);
    KoPathSegment segment = path->segmentAtPoint(m_currentMousePos, roi);
 
    if (!segment.isValid()) {
        return nullptr;
    }
 
    QList<KoPathSegment> segments = path->segmentsAt(path->outlineRect().adjusted(-grab, -grab, grab, grab));
 
    double length = 0;
    Q_FOREACH(KoPathSegment s, segments) {
        if (s == segment) {
            const QPointF mouseInShape = path->documentToShape(m_currentMousePos);
            const qreal t = segment.nearestPoint(mouseInShape);
            info.startOffset = length + (t * segment.length());
 
            const QLineF l = QLineF(segment.pointAt(t), mouseInShape).unitVector();
            const QVector2D p1(l.p2()-l.p1());
            const QVector2D tangent = QVector2D(segment.angleVectorAtParam(t));
            const QVector2D normal(-tangent.y(), tangent.x());
            float dot = QVector2D::dotProduct(p1, normal);
            if (dot <= 0) {
                info.side = KoSvgText::TextPathSideRight;
            } else {
                info.side = KoSvgText::TextPathSideLeft;
            }
        }
        length += s.length();
    }
    if (info.side == KoSvgText::TextPathSideRight) {
        info.startOffset = length - info.startOffset;
    }
 
    KUndo2Command *cmd = new SvgTextPathInfoChangeCommand(m_shape, m_textCursorPos, info);
    cmd->setText(kundo2_i18n("Change Text On Path Position"));
    return cmd;
}

References KoPathSegment::angleVectorAtParam(), KoPathSegment::isValid(), kundo2_i18n(), length(), KoPathSegment::length(), m_currentMousePos, m_shape, m_textCursorPos, KoPathSegment::nearestPoint(), p1, KoPathSegment::pointAt(), KUndo2Command::setText(), KoSvgText::TextOnPathInfo::side, KoSvgText::TextOnPathInfo::startOffset, KoSvgTextNodeIndex::textPath(), KoSvgText::TextPathSideLeft, KoSvgText::TextPathSideRight, KoInteractionStrategy::tool(), and KoSvgTextShape::topLevelNodeForPos().

◆ finishInteraction()

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

overridevirtual

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

Implements KoInteractionStrategy.

Definition at line 101 of file SvgChangeTextPathInfoStrategy.cpp.

{
 
}

◆ handleMouseMove()

void SvgChangeTextPathInfoStrategy::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 27 of file SvgChangeTextPathInfoStrategy.cpp.

{
    Q_UNUSED(modifiers)
 
    m_currentMousePos = mouseLocation;
 
    KUndo2Command *cmd = createCommand();
    if (cmd) {
        cmd->redo();
    }
    tool()->repaintDecorations();
}