/******************************************************************************
* QSkinny - Copyright (C) 2016 Uwe Rathmann
* This file may be used under the terms of the QSkinny License, Version 1.0
*****************************************************************************/
#include "QskGraphic.h"
#include "QskColorFilter.h"
#include "QskGraphicPaintEngine.h"
#include "QskPainterCommand.h"
#include <qguiapplication.h>
#include <qimage.h>
#include <qmath.h>
#include <qpaintengine.h>
#include <qpainter.h>
#include <qpainterpath.h>
#include <qpixmap.h>
#include <qhashfunctions.h>
#include <private/qpainter_p.h>
#include <private/qpaintengineex_p.h>
static inline qreal qskDevicePixelRatio()
{
return qGuiApp ? qGuiApp->devicePixelRatio() : 1.0;
}
static bool qskHasScalablePen( const QPainter* painter )
{
const QPen pen = painter->pen();
bool scalablePen = false;
if ( pen.style() != Qt::NoPen && pen.brush().style() != Qt::NoBrush )
{
scalablePen = !pen.isCosmetic();
}
return scalablePen;
}
static QRectF qskStrokedPathRect(
const QPainter* painter, const QPainterPath& path )
{
const auto pen = painter->pen();
QPainterPathStroker stroker;
stroker.setWidth( pen.widthF() );
stroker.setCapStyle( pen.capStyle() );
stroker.setJoinStyle( pen.joinStyle() );
stroker.setMiterLimit( pen.miterLimit() );
QRectF rect;
if ( qskHasScalablePen( painter ) )
{
const QPainterPath stroke = stroker.createStroke( path );
rect = painter->transform().map( stroke ).boundingRect();
}
else
{
QPainterPath mappedPath = painter->transform().map( path );
mappedPath = stroker.createStroke( mappedPath );
rect = mappedPath.boundingRect();
}
return rect;
}
static inline void qskExecCommand(
QPainter* painter, const QskPainterCommand& cmd,
const QskColorFilter& colorFilter,
QskGraphic::RenderHints renderHints,
const QTransform& transform,
const QTransform* initialTransform )
{
switch ( cmd.type() )
{
case QskPainterCommand::Path:
{
bool doMap = false;
if ( painter->transform().isScaling() )
{
if ( painter->pen().isCosmetic() )
{
// OpenGL2 seems to be buggy for cosmetic pens.
// It interpolates curves in too rough steps then
doMap = painter->paintEngine()->type() == QPaintEngine::OpenGL2;
}
else
{
doMap = renderHints.testFlag( QskGraphic::RenderPensUnscaled );
}
}
if ( doMap )
{
const QTransform tr = painter->transform();
painter->resetTransform();
QPainterPath path = tr.map( *cmd.path() );
if ( initialTransform )
{
painter->setTransform( *initialTransform );
path = initialTransform->inverted().map( path );
}
painter->drawPath( path );
painter->setTransform( tr );
}
else
{
painter->drawPath( *cmd.path() );
}
break;
}
case QskPainterCommand::Pixmap:
{
const auto data = cmd.pixmapData();
painter->drawPixmap( data->rect, data->pixmap, data->subRect );
break;
}
case QskPainterCommand::Image:
{
const auto data = cmd.imageData();
painter->drawImage( data->rect, data->image,
data->subRect, data->flags );
break;
}
case QskPainterCommand::State:
{
const auto data = cmd.stateData();
if ( data->flags & QPaintEngine::DirtyPen )
painter->setPen( colorFilter.substituted( data->pen ) );
if ( data->flags & QPaintEngine::DirtyBrush )
painter->setBrush( colorFilter.substituted( data->brush ) );
if ( data->flags & QPaintEngine::DirtyBrushOrigin )
painter->setBrushOrigin( data->brushOrigin );
if ( data->flags & QPaintEngine::DirtyFont )
painter->setFont( data->font );
if ( data->flags & QPaintEngine::DirtyBackground )
{
painter->setBackgroundMode( data->backgroundMode );
painter->setBackground( colorFilter.substituted( data->backgroundBrush ) );
}
if ( data->flags & QPaintEngine::DirtyTransform )
{
painter->setTransform( data->transform * transform );
}
if ( data->flags & QPaintEngine::DirtyClipEnabled )
painter->setClipping( data->isClipEnabled );
if ( data->flags & QPaintEngine::DirtyClipRegion )
{
painter->setClipRegion( data->clipRegion,
data->clipOperation );
}
if ( data->flags & QPaintEngine::DirtyClipPath )
{
painter->setClipPath( data->clipPath, data->clipOperation );
}
if ( data->flags & QPaintEngine::DirtyHints )
{
#if 1
auto state = QPainterPrivate::get( painter )->state;
state->renderHints = data->renderHints;
// to trigger internal updates we have to set at least one flag
const auto hint = QPainter::SmoothPixmapTransform;
painter->setRenderHint( hint, data->renderHints.testFlag( hint ) );
#else
for ( int i = 0; i < 8; i++ )
{
const auto hint = static_cast< QPainter::RenderHint >( 1 << i );
painter->setRenderHint( hint, data->renderHints.testFlag( hint ) );
}
#endif
}
if ( data->flags & QPaintEngine::DirtyCompositionMode )
painter->setCompositionMode( data->compositionMode );
if ( data->flags & QPaintEngine::DirtyOpacity )
painter->setOpacity( data->opacity );
break;
}
default:
break;
}
}
/*
To avoid subobject-linkage warnings, when including the source code in
svg2qvg we don't use an anonymous namespace here
*/
namespace QskGraphicPrivate
{
class PathInfo
{
public:
PathInfo()
: m_scalablePen( false )
{
// QVector needs a default constructor
}
PathInfo( const QRectF& pointRect,
const QRectF& boundingRect, bool scalablePen )
: m_pointRect( pointRect )
, m_boundingRect( boundingRect )
, m_scalablePen( scalablePen )
{
}
inline QRectF scaledBoundingRect( qreal sx, qreal sy, bool scalePens ) const
{
if ( sx == 1.0 && sy == 1.0 )
return m_boundingRect;
QTransform transform;
transform.scale( sx, sy );
QRectF rect;
if ( scalePens && m_scalablePen )
{
rect = transform.mapRect( m_boundingRect );
}
else
{
rect = transform.mapRect( m_pointRect );
const qreal l = qAbs( m_pointRect.left() - m_boundingRect.left() );
const qreal r = qAbs( m_pointRect.right() - m_boundingRect.right() );
const qreal t = qAbs( m_pointRect.top() - m_boundingRect.top() );
const qreal b = qAbs( m_pointRect.bottom() - m_boundingRect.bottom() );
rect.adjust( -l, -t, r, b );
}
return rect;
}
inline double scaleFactorX( const QRectF& pathRect,
const QRectF& targetRect, bool scalePens ) const
{
if ( pathRect.width() <= 0.0 )
return 0.0;
const QPointF p0 = m_pointRect.center();
const qreal l = qAbs( pathRect.left() - p0.x() );
const qreal r = qAbs( pathRect.right() - p0.x() );
const double w = 2.0 * qMin( l, r ) *
targetRect.width() / pathRect.width();
double sx;
if ( scalePens && m_scalablePen )
{
sx = w / m_boundingRect.width();
}
else
{
const qreal pw = qMax(
qAbs( m_boundingRect.left() - m_pointRect.left() ),
qAbs( m_boundingRect.right() - m_pointRect.right() ) );
sx = ( w - 2 * pw ) / m_pointRect.width();
}
return sx;
}
inline double scaleFactorY( const QRectF& pathRect,
const QRectF& targetRect, bool scalePens ) const
{
if ( pathRect.height() <= 0.0 )
return 0.0;
const QPointF p0 = m_pointRect.center();
const qreal t = qAbs( pathRect.top() - p0.y() );
const qreal b = qAbs( pathRect.bottom() - p0.y() );
const double h = 2.0 * qMin( t, b ) *
targetRect.height() / pathRect.height();
double sy;
if ( scalePens && m_scalablePen )
{
sy = h / m_boundingRect.height();
}
else
{
const double pw =
qMax( qAbs( m_boundingRect.top() - m_pointRect.top() ),
qAbs( m_boundingRect.bottom() - m_pointRect.bottom() ) );
sy = ( h - 2 * pw ) / m_pointRect.height();
}
return sy;
}
private:
QRectF m_pointRect;
QRectF m_boundingRect;
bool m_scalablePen;
};
}
class QskGraphic::PrivateData : public QSharedData
{
public:
PrivateData()
: commandTypes( 0 )
, renderHints( 0 )
{
}
PrivateData( const PrivateData& other )
: QSharedData( other )
, defaultSize( other.defaultSize )
, commands( other.commands )
, pathInfos( other.pathInfos )
, boundingRect( other.boundingRect )
, pointRect( other.pointRect )
, modificationId( other.modificationId )
, commandTypes( other.commandTypes )
, renderHints( other.renderHints )
{
}
inline bool operator==( const PrivateData& other ) const
{
return ( modificationId == other.modificationId ) &&
( renderHints == other.renderHints ) &&
( defaultSize == other.defaultSize );
}
inline void addCommand( const QskPainterCommand& command )
{
commands += command;
static QAtomicInteger< quint64 > nextId( 1 );
modificationId = nextId.fetchAndAddRelaxed( 1 );
}
QSizeF defaultSize;
QVector< QskPainterCommand > commands;
QVector< QskGraphicPrivate::PathInfo > pathInfos;
QRectF boundingRect = { 0.0, 0.0, -1.0, -1.0 };
QRectF pointRect = { 0.0, 0.0, -1.0, -1.0 };
quint64 modificationId = 0;
uint commandTypes : 4;
uint renderHints : 4;
};
QskGraphic::QskGraphic()
: m_data( new PrivateData() )
, m_paintEngine( nullptr )
{
}
QskGraphic::QskGraphic( const QskGraphic& other )
: QPaintDevice()
, m_data( other.m_data )
, m_paintEngine( nullptr )
{
}
QskGraphic::QskGraphic( QskGraphic&& other )
: m_data( std::move( other.m_data ) )
, m_paintEngine( nullptr )
{
}
QskGraphic::~QskGraphic()
{
delete m_paintEngine;
}
QskGraphic& QskGraphic::operator=( const QskGraphic& other )
{
delete m_paintEngine;
m_data = other.m_data;
m_paintEngine = nullptr;
return *this;
}
QskGraphic& QskGraphic::operator=( QskGraphic&& other )
{
m_data = std::move( other.m_data );
m_paintEngine = nullptr;
return *this;
}
bool QskGraphic::operator==( const QskGraphic& other ) const
{
return *m_data == *other.m_data;
}
QPaintEngine* QskGraphic::paintEngine() const
{
if ( m_paintEngine == nullptr )
m_paintEngine = new QskGraphicPaintEngine();
return m_paintEngine;
}
int QskGraphic::metric( PaintDeviceMetric deviceMetric ) const
{
int value;
switch ( deviceMetric )
{
case PdmWidth:
{
value = qCeil( defaultSize().width() );
break;
}
case PdmHeight:
{
value = qCeil( defaultSize().height() );
break;
}
case PdmNumColors:
{
value = 0xffffffff;
break;
}
case PdmDepth:
{
value = 32;
break;
}
case PdmPhysicalDpiX:
case PdmPhysicalDpiY:
case PdmDpiY:
case PdmDpiX:
{
value = 72;
break;
}
case PdmWidthMM:
{
value = qRound( metric( PdmWidth ) * 25.4 / metric( PdmDpiX ) );
break;
}
case PdmHeightMM:
{
value = qRound( metric( PdmHeight ) * 25.4 / metric( PdmDpiY ) );
break;
}
default:
value = 0;
}
return value;
}
void QskGraphic::reset()
{
m_data->commands.clear();
m_data->pathInfos.clear();
m_data->commandTypes = 0;
m_data->boundingRect = QRectF( 0.0, 0.0, -1.0, -1.0 );
m_data->pointRect = QRectF( 0.0, 0.0, -1.0, -1.0 );
m_data->defaultSize = QSizeF();
m_data->modificationId = 0;
delete m_paintEngine;
m_paintEngine = nullptr;
}
bool QskGraphic::isNull() const
{
return m_data->commands.isEmpty();
}
bool QskGraphic::isEmpty() const
{
return m_data->boundingRect.isEmpty();
}
QskGraphic::CommandTypes QskGraphic::commandTypes() const
{
return static_cast< CommandTypes >( m_data->commandTypes );
}
void QskGraphic::setRenderHint( RenderHint hint, bool on )
{
if ( on )
m_data->renderHints |= hint;
else
m_data->renderHints &= ~hint;
}
bool QskGraphic::testRenderHint( RenderHint hint ) const
{
return m_data->renderHints & hint;
}
QskGraphic::RenderHints QskGraphic::renderHints() const
{
return static_cast< QskGraphic::RenderHints >( m_data->renderHints );
}
QRectF QskGraphic::boundingRect() const
{
if ( m_data->boundingRect.width() < 0 )
return QRectF();
return m_data->boundingRect;
}
QRectF QskGraphic::controlPointRect() const
{
if ( m_data->pointRect.width() < 0 )
return QRectF();
return m_data->pointRect;
}
QRectF QskGraphic::scaledBoundingRect( qreal sx, qreal sy ) const
{
if ( sx == 1.0 && sy == 1.0 )
return m_data->boundingRect;
const bool scalePens = !( m_data->renderHints & RenderPensUnscaled );
QTransform transform;
transform.scale( sx, sy );
QRectF rect = transform.mapRect( m_data->pointRect );
for ( const auto& info : qskAsConst( m_data->pathInfos ) )
rect |= info.scaledBoundingRect( sx, sy, scalePens );
return rect;
}
QSize QskGraphic::sizeMetrics() const
{
const QSizeF sz = defaultSize();
return QSize( qCeil( sz.width() ), qCeil( sz.height() ) );
}
void QskGraphic::setDefaultSize( const QSizeF& size )
{
const double w = qMax( qreal( 0.0 ), size.width() );
const double h = qMax( qreal( 0.0 ), size.height() );
m_data->defaultSize = QSizeF( w, h );
}
QSizeF QskGraphic::defaultSize() const
{
if ( !m_data->defaultSize.isEmpty() )
return m_data->defaultSize;
return boundingRect().size();
}
qreal QskGraphic::heightForWidth( qreal width ) const
{
const auto sz = defaultSize();
if ( sz.isEmpty() )
return 0;
return sz.height() * width / sz.width();
}
qreal QskGraphic::widthForHeight( qreal height ) const
{
const auto sz = defaultSize();
if ( sz.isEmpty() )
return 0;
return sz.width() * height / sz.height();
}
void QskGraphic::render( QPainter* painter ) const
{
render( painter, QskColorFilter() );
}
void QskGraphic::render( QPainter* painter,
const QskColorFilter& colorFilter, QTransform* initialTransform ) const
{
if ( isNull() )
return;
const int numCommands = m_data->commands.size();
const auto commands = m_data->commands.constData();
const auto transform = painter->transform();
const QskGraphic::RenderHints renderHints( m_data->renderHints );
painter->save();
for ( int i = 0; i < numCommands; i++ )
{
qskExecCommand( painter, commands[ i ], colorFilter,
renderHints, transform, initialTransform );
}
painter->restore();
}
void QskGraphic::render( QPainter* painter, const QSizeF& size,
Qt::AspectRatioMode aspectRatioMode ) const
{
const QRectF r( 0.0, 0.0, size.width(), size.height() );
render( painter, r, aspectRatioMode );
}
void QskGraphic::render( QPainter* painter, const QRectF& rect,
Qt::AspectRatioMode aspectRatioMode ) const
{
render( painter, rect, QskColorFilter(), aspectRatioMode );
}
void QskGraphic::render( QPainter* painter, const QRectF& rect,
const QskColorFilter& colorFilter, Qt::AspectRatioMode aspectRatioMode ) const
{
if ( isEmpty() || rect.isEmpty() )
return;
qreal sx = 1.0;
qreal sy = 1.0;
if ( m_data->pointRect.width() > 0.0 )
sx = rect.width() / m_data->pointRect.width();
if ( m_data->pointRect.height() > 0.0 )
sy = rect.height() / m_data->pointRect.height();
const bool scalePens = !( m_data->renderHints & RenderPensUnscaled );
for ( const auto& info : qskAsConst( m_data->pathInfos ) )
{
const qreal ssx = info.scaleFactorX(
m_data->pointRect, rect, scalePens );
if ( ssx > 0.0 )
sx = qMin( sx, ssx );
const qreal ssy = info.scaleFactorY(
m_data->pointRect, rect, scalePens );
if ( ssy > 0.0 )
sy = qMin( sy, ssy );
}
if ( aspectRatioMode == Qt::KeepAspectRatio )
{
sx = sy = qMin( sx, sy );
}
else if ( aspectRatioMode == Qt::KeepAspectRatioByExpanding )
{
sx = sy = qMax( sx, sy );
}
const auto& pr = m_data->pointRect;
const auto rc = rect.center();
QTransform tr;
tr.translate(
rc.x() - 0.5 * sx * pr.width(),
rc.y() - 0.5 * sy * pr.height() );
tr.scale( sx, sy );
tr.translate( -pr.x(), -pr.y() );
const auto transform = painter->transform();
painter->setTransform( tr, true );
if ( !scalePens && transform.isScaling() )
{
/*
We don't want to scale pens according to sx/sy,
but we want to apply the initial scaling from the
painter transformation.
*/
QTransform initialTransform;
initialTransform.scale( transform.m11(), transform.m22() );
render( painter, colorFilter, &initialTransform );
}
else
{
render( painter, colorFilter, nullptr );
}
painter->setTransform( transform );
}
void QskGraphic::render( QPainter* painter,
const QPointF& pos, Qt::Alignment alignment ) const
{
QRectF r( pos, defaultSize() );
if ( alignment & Qt::AlignLeft )
{
r.moveLeft( pos.x() );
}
else if ( alignment & Qt::AlignHCenter )
{
r.moveCenter( QPointF( pos.x(), r.center().y() ) );
}
else if ( alignment & Qt::AlignRight )
{
r.moveRight( pos.x() );
}
if ( alignment & Qt::AlignTop )
{
r.moveTop( pos.y() );
}
else if ( alignment & Qt::AlignVCenter )
{
r.moveCenter( QPointF( r.center().x(), pos.y() ) );
}
else if ( alignment & Qt::AlignBottom )
{
r.moveBottom( pos.y() );
}
render( painter, r );
}
QPixmap QskGraphic::toPixmap( qreal devicePixelRatio ) const
{
if ( isNull() )
return QPixmap();
if ( devicePixelRatio <= 0.0 )
devicePixelRatio = qskDevicePixelRatio();
const QSizeF sz = defaultSize();
const int w = qCeil( sz.width() );
const int h = qCeil( sz.height() );
QPixmap pixmap( w, h );
pixmap.setDevicePixelRatio( devicePixelRatio );
pixmap.fill( Qt::transparent );
const QRectF r( 0.0, 0.0, sz.width(), sz.height() );
QPainter painter( &pixmap );
render( &painter, r, Qt::KeepAspectRatio );
painter.end();
return pixmap;
}
QPixmap QskGraphic::toPixmap( const QSize& size,
Qt::AspectRatioMode aspectRatioMode, qreal devicePixelRatio ) const
{
if ( devicePixelRatio <= 0.0 )
devicePixelRatio = qskDevicePixelRatio();
QPixmap pixmap( size );
pixmap.setDevicePixelRatio( devicePixelRatio );
pixmap.fill( Qt::transparent );
const QRect r( 0, 0, size.width(), size.height() );
QPainter painter( &pixmap );
render( &painter, r, aspectRatioMode );
painter.end();
return pixmap;
}
QImage QskGraphic::toImage( const QSize& size,
Qt::AspectRatioMode aspectRatioMode, qreal devicePixelRatio ) const
{
if ( devicePixelRatio <= 0.0 )
devicePixelRatio = qskDevicePixelRatio();
QImage image( size * devicePixelRatio, QImage::Format_ARGB32_Premultiplied );
image.setDevicePixelRatio( devicePixelRatio );
image.fill( 0 );
const QRect r( 0, 0, size.width(), size.height() );
QPainter painter( &image );
render( &painter, r, aspectRatioMode );
painter.end();
return image;
}
QImage QskGraphic::toImage( qreal devicePixelRatio ) const
{
if ( isNull() )
return QImage();
if ( devicePixelRatio <= 0.0 )
devicePixelRatio = qskDevicePixelRatio();
const QSizeF sz = defaultSize();
const int w = qCeil( sz.width() ) * devicePixelRatio;
const int h = qCeil( sz.height() ) * devicePixelRatio;
QImage image( w, h, QImage::Format_ARGB32 );
image.setDevicePixelRatio( devicePixelRatio );
image.fill( 0 );
const QRect r( 0, 0, sz.width(), sz.height() );
QPainter painter( &image );
render( &painter, r, Qt::KeepAspectRatio );
painter.end();
return image;
}
void QskGraphic::drawPath( const QPainterPath& path )
{
const auto painter = paintEngine()->painter();
if ( painter == nullptr )
return;
m_data->addCommand( QskPainterCommand( path ) );
m_data->commandTypes |= QskGraphic::VectorData;
if ( !path.isEmpty() )
{
const auto scaledPath = painter->transform().map( path );
QRectF pointRect = scaledPath.boundingRect();
QRectF boundingRect = pointRect;
if ( painter->pen().style() != Qt::NoPen &&
painter->pen().brush().style() != Qt::NoBrush )
{
boundingRect = qskStrokedPathRect( painter, path );
}
updateControlPointRect( pointRect );
updateBoundingRect( boundingRect );
m_data->pathInfos += QskGraphicPrivate::PathInfo( pointRect,
boundingRect, qskHasScalablePen( painter ) );
}
}
void QskGraphic::drawPixmap( const QRectF& rect,
const QPixmap& pixmap, const QRectF& subRect )
{
const auto painter = paintEngine()->painter();
if ( painter == nullptr )
return;
m_data->addCommand( QskPainterCommand( rect, pixmap, subRect ) );
m_data->commandTypes |= QskGraphic::RasterData;
const QRectF r = painter->transform().mapRect( rect );
updateControlPointRect( r );
updateBoundingRect( r );
}
void QskGraphic::drawImage( const QRectF& rect, const QImage& image,
const QRectF& subRect, Qt::ImageConversionFlags flags )
{
const auto painter = paintEngine()->painter();
if ( painter == nullptr )
return;
m_data->addCommand( QskPainterCommand( rect, image, subRect, flags ) );
m_data->commandTypes |= QskGraphic::RasterData;
const QRectF r = painter->transform().mapRect( rect );
updateControlPointRect( r );
updateBoundingRect( r );
}
void QskGraphic::updateState( const QPaintEngineState& state )
{
m_data->addCommand( QskPainterCommand( state ) );
if ( state.state() & QPaintEngine::DirtyTransform )
{
if ( !( m_data->commandTypes & QskGraphic::Transformation ) )
{
/*
QTransform::isScaling() returns true for all type
of transformations beside simple translations
even if it is f.e a rotation
*/
if ( state.transform().isScaling() )
m_data->commandTypes |= QskGraphic::Transformation;
}
}
}
void QskGraphic::updateBoundingRect( const QRectF& rect )
{
QRectF br = rect;
if ( const auto painter = paintEngine()->painter() )
{
if ( painter->hasClipping() )
{
QRectF cr = painter->clipRegion().boundingRect();
cr = painter->transform().mapRect( cr );
br &= cr;
}
}
if ( m_data->boundingRect.width() < 0 )
m_data->boundingRect = br;
else
m_data->boundingRect |= br;
}
void QskGraphic::updateControlPointRect( const QRectF& rect )
{
if ( m_data->pointRect.width() < 0.0 )
m_data->pointRect = rect;
else
m_data->pointRect |= rect;
}
const QVector< QskPainterCommand >& QskGraphic::commands() const
{
return m_data->commands;
}
void QskGraphic::setCommands( const QVector< QskPainterCommand >& commands )
{
reset();
const int numCommands = commands.size();
if ( numCommands <= 0 )
return;
// to calculate a proper bounding rectangle we don't simply copy
// the commands.
const auto cmds = commands.constData();
const QskColorFilter noFilter;
const QTransform noTransform;
QPainter painter( this );
for ( int i = 0; i < numCommands; i++ )
{
qskExecCommand( &painter, cmds[ i ],
noFilter, RenderHints(), noTransform, nullptr );
}
painter.end();
}
quint64 QskGraphic::modificationId() const
{
return m_data->modificationId;
}
uint QskGraphic::hash( uint seed ) const
{
auto hash = qHash( m_data->renderHints, seed );
hash = qHash( m_data->defaultSize.width(), hash );
hash = qHash( m_data->defaultSize.height(), hash );
return qHash( m_data->modificationId, hash );
}
QskGraphic QskGraphic::fromImage( const QImage& image )
{
QskGraphic graphic;
if ( !image.isNull() )
{
QPainter painter( &graphic );
painter.drawImage( 0, 0, image );
painter.end();
}
return graphic;
}
QskGraphic QskGraphic::fromPixmap( const QPixmap& pixmap )
{
QskGraphic graphic;
if ( !pixmap.isNull() )
{
QPainter painter( &graphic );
painter.drawPixmap( 0, 0, pixmap );
painter.end();
}
return graphic;
}
QskGraphic QskGraphic::fromPixmapAsImage( const QPixmap& pixmap )
{
/*
Using QPainter::drawPixmap in the scene graph thread leads
to warnings about "not being safe". This is probably not critical
for Qt/Quick as the main thread is waiting, when updating the
scene graph nodes.
It needs to be checked, what is going on, when
using the X11 paint engine, where QPixmap/QImage are more different.
TODO ...
*/
return fromImage( pixmap.toImage() );
}
#ifndef QT_NO_DEBUG_STREAM
#include <qdebug.h>
QDebug operator<<( QDebug debug, const QskGraphic& graphic )
{
QDebugStateSaver saver( debug );
debug << "Graphic" << '(';
debug << "\n boundingRect:" << graphic.boundingRect();
debug << "\n controlPointsRect:" << graphic.boundingRect();
debug << "\n commandTypes:" << graphic.commandTypes();
for ( const auto& command : graphic.commands() )
{
switch ( command.type() )
{
case QskPainterCommand::Path:
{
const auto& path = *command.path();
debug << "\n Path(" << path.elementCount() << ")";
const char* types[] = { "MoveTo", "LineTo", "CurveTo", "CurveToData" };
for ( int i = 0; i < path.elementCount(); i++ )
{
debug << "\n ";
const auto el = path.elementAt(i);
debug << types[ el.type] << el.x << el.y;
}
break;
}
case QskPainterCommand::Pixmap:
{
const auto& pixmapData = *command.pixmapData();
debug << "\n Pixmap:";
debug << "\n " << pixmapData.pixmap;
debug << "\n Rect:" << pixmapData.rect;
debug << "\n SubRect:" << pixmapData.subRect;
break;
}
case QskPainterCommand::Image:
{
const auto& imageData = *command.imageData();
debug << "\n Image:";
debug << "\n " << imageData.image;
debug << "\n ConversionFlags" << imageData.flags;
debug << "\n Rect:" << imageData.rect;
debug << "\n SubRect:" << imageData.subRect;
break;
}
case QskPainterCommand::State:
{
const auto& stateData = *command.stateData();
const auto flags = stateData.flags;
debug << "\n State:";
const char indent[] = "\n ";
if ( flags & QPaintEngine::DirtyPen )
{
debug << indent << "Pen:" << stateData.pen;
}
if ( flags & QPaintEngine::DirtyBrush )
{
debug << indent << "Brush:" << stateData.brush;
}
if ( flags & QPaintEngine::DirtyBrushOrigin )
{
debug << indent << "BrushOrigin:" << stateData.brushOrigin;
}
if ( flags & QPaintEngine::DirtyFont )
{
debug << indent << "Font:" << stateData.font;
}
if ( flags & QPaintEngine::DirtyBackground )
{
debug << indent << "Background:"
<< stateData.backgroundMode
<< stateData.backgroundBrush;
}
if ( flags & QPaintEngine::DirtyTransform )
{
debug << indent << "Transform: " << stateData.transform;
}
if ( flags & QPaintEngine::DirtyClipEnabled )
{
debug << indent << "ClipEnabled: " << stateData.isClipEnabled;
}
if ( flags & QPaintEngine::DirtyClipRegion )
{
debug << indent << "ClipRegion: " << stateData.clipOperation;
}
if ( flags & QPaintEngine::DirtyClipPath )
{
debug << indent << "ClipPath:" << stateData.clipOperation;
}
if ( flags & QPaintEngine::DirtyHints )
{
debug << indent << "RenderHints:" << stateData.renderHints;
}
if ( flags & QPaintEngine::DirtyCompositionMode )
{
debug << indent << "CompositionMode:" << stateData.compositionMode;
}
if ( flags & QPaintEngine::DirtyOpacity )
{
debug << indent << "Opacity:" << stateData.opacity;
}
break;
}
default:
break;
}
}
debug << "\n)";
return debug;
}
#endif