#include <kis_boundary.h>

Classes
struct	Private

Public Member Functions
void	generateBoundary ()

	KisBoundary (KisFixedPaintDeviceSP dev)

void	paint (QPainter &painter) const

QPainterPath	path () const
	returns the outline saved in QPainterPath

	~KisBoundary ()

Private Attributes
Private *const	d

Detailed Description

Generates an 'outline' for a paint device. It should look a bit like the outline of a marching ants selection.

It's not really optimized, so it's not recommended to do big things with it and expect it to be fast.

Usage: construct a KisBoundary, and then run a generateBoundary(w, h) on it. After that, you can use the KisBoundaryPainter::paint method to let it paint the outline, or get a pixmap.

If you are debugging the brush outlines, be aware that the pipeline for this data is somewhat complex, involving such user classes: KisBoundary, KisBrush, KisBrushBasedPaintOpSettings, KisTool, KisCurrentOutlineFetcher

Definition at line 29 of file kis_boundary.h.

Constructor & Destructor Documentation

◆ KisBoundary()

KisBoundary::KisBoundary ( KisFixedPaintDeviceSP dev )

Definition at line 22 of file kis_boundary.cc.

                                                  : d(new Private)
{
    d->m_device = dev;
}

References d, and KisBoundary::Private::m_device.

◆ ~KisBoundary()

KisBoundary::~KisBoundary ( )

Definition at line 27 of file kis_boundary.cc.

{
    delete d;
}

References d.

Member Function Documentation

◆ generateBoundary()

void KisBoundary::generateBoundary ( )

Definition at line 32 of file kis_boundary.cc.

{
    if (!d->m_device)
        return;
 
    KisOutlineGenerator generator(d->m_device->colorSpace(), OPACITY_TRANSPARENT_U8);
    generator.setSimpleOutline(true);
    d->m_boundary = generator.outline(d->m_device->data(), 0, 0, d->m_device->bounds().width(), d->m_device->bounds().height());
 
    d->path = QPainterPath();
    Q_FOREACH (const QPolygon & polygon, d->m_boundary) {
        d->path.addPolygon(polygon);
        d->path.closeSubpath();
    }
 
}

References KisFixedPaintDevice::bounds(), KisFixedPaintDevice::colorSpace(), d, KisFixedPaintDevice::data(), KisBoundary::Private::m_boundary, KisBoundary::Private::m_device, OPACITY_TRANSPARENT_U8, KisOutlineGenerator::outline(), KisBoundary::Private::path, and KisOutlineGenerator::setSimpleOutline().

◆ paint()

void KisBoundary::paint ( QPainter & painter ) const

Definition at line 49 of file kis_boundary.cc.

{
    QPen pen;
    pen.setWidth(0);
    pen.setBrush(Qt::black);
    painter.setPen(pen);
 
    Q_FOREACH (const QPolygon & polygon, d->m_boundary) {
        painter.drawPolygon(polygon);
    }
}

References d, and KisBoundary::Private::m_boundary.

◆ path()

QPainterPath KisBoundary::path ( ) const

returns the outline saved in QPainterPath

Definition at line 61 of file kis_boundary.cc.

{
    return d->path;
}

References d, and KisBoundary::Private::path.

Member Data Documentation

◆ d

Private* const KisBoundary::d

private

Definition at line 43 of file kis_boundary.h.

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

libs/brush/kis_boundary.h
libs/brush/kis_boundary.cc

Classes

Public Member Functions

Private Attributes