/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the QtCanvas3D module of the Qt Toolkit.
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****************************************************************************/
#include "contextattributes_p.h"
#include <QVariantMap>
#include <QDebug>
QT_BEGIN_NAMESPACE
QT_CANVAS3D_BEGIN_NAMESPACE
/*!
* \qmltype ContextAttributes
* \since QtCanvas3D 1.0
* \ingroup qtcanvas3d-qml-types
* \brief Attribute set for Context3D
*
* ContextAttributes is an attribute set that can be given as parameter on first call to
* Canvas3D object's \l{Canvas3D::getContext}{getContext(string type, ContextAttributes options)}
* method call. It can also be requested from the Context3D later on to verify what exact
* attributes are in fact enabled/disabled in the created context.
*
* \sa Context3D, Canvas3D, {QtCanvas3D QML Types}
*/
/*!
* \internal
*/
CanvasContextAttributes::CanvasContextAttributes(QObject *parent) :
CanvasAbstractObject(parent),
m_alpha(false), // Should be true according to official WebGL spec. But ignored for now.
m_depth(false),
m_stencil(false),
m_antialias(false),
m_premultipliedAlpha(false),
m_preserveDrawingBuffer(false),
m_preferLowPowerToHighPerformance(false),
m_failIfMajorPerformanceCaveat(false)
{
}
/*!
* \internal
*/
CanvasContextAttributes::~CanvasContextAttributes()
{
}
/*!
* \internal
*/
void CanvasContextAttributes::setFrom(const QVariantMap &options)
{
for (QVariantMap::const_iterator iter = options.begin(); iter != options.end(); ++iter) {
if (iter.key() == "alpha")
setAlpha(iter.value().toBool());
else if (iter.key() == "depth")
setDepth(iter.value().toBool());
else if (iter.key() == "stencil")
setStencil(iter.value().toBool());
else if (iter.key() == "antialias")
setAntialias(iter.value().toBool());
else if (iter.key() == "premultipliedAlpha")
setPremultipliedAlpha(iter.value().toBool());
else if (iter.key() == "preserveDrawingBuffer")
setPreserveDrawingBuffer(iter.value().toBool());
else if (iter.key() == "preferLowPowerToHighPerformance")
setPreferLowPowerToHighPerformance(iter.value().toBool());
else if (iter.key() == "failIfMajorPerformanceCaveat")
setFailIfMajorPerformanceCaveat(iter.value().toBool());
}
}
/*!
* \internal
*/
void CanvasContextAttributes::setFrom(const CanvasContextAttributes &source)
{
m_alpha = source.alpha();
m_depth = source.depth();
m_stencil = source.stencil();
m_antialias = source.antialias();
m_premultipliedAlpha = source.premultipliedAlpha();
m_preserveDrawingBuffer = source.preserveDrawingBuffer();
m_preferLowPowerToHighPerformance = source.preferLowPowerToHighPerformance();
m_failIfMajorPerformanceCaveat = source.failIfMajorPerformanceCaveat();
}
/*!
* \qmlproperty bool ContextAttributes::alpha
* Ignored. Defaults to \c{false}.
*/
bool CanvasContextAttributes::alpha() const
{
return m_alpha;
}
void CanvasContextAttributes::setAlpha(bool value)
{
if (m_alpha == value)
return;
m_alpha = value;
emit alphaChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::depth
* Specifies whether a depth attachment is to be created and attached to the default render target
* of the Context3D.
* Defaults to \c{false}.
*/
bool CanvasContextAttributes::depth() const
{
return m_depth;
}
void CanvasContextAttributes::setDepth(bool value)
{
if (m_depth == value)
return;
m_depth = value;
emit depthChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::stencil
* Specifies whether a stencil attachment is to be created and attached to the default render
* target of the Context3D.
* Defaults to \c{false}.
*/
bool CanvasContextAttributes::stencil() const
{
return m_stencil;
}
void CanvasContextAttributes::setStencil(bool value)
{
if (m_stencil == value)
return;
m_stencil = value;
emit stencilChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::antialias
* Specifies whether antialiasing buffer is created for the default render target of the Context3D.
* Defaults to \c{false}.
*/
bool CanvasContextAttributes::antialias() const
{
return m_antialias;
}
void CanvasContextAttributes::setAntialias(bool value)
{
if (m_antialias == value)
return;
m_antialias = value;
emit antialiasChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::premultipliedAlpha
* Ignored. Defaults to \c{false}.
*/
bool CanvasContextAttributes::premultipliedAlpha() const
{
return m_premultipliedAlpha;
}
void CanvasContextAttributes::setPremultipliedAlpha(bool value)
{
if (m_premultipliedAlpha == value)
return;
m_premultipliedAlpha = value;
emit premultipliedAlphaChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::preserveDrawingBuffer
* Ignored. Defaults to \c{false}.
*/
bool CanvasContextAttributes::preserveDrawingBuffer() const
{
return m_preserveDrawingBuffer;
}
void CanvasContextAttributes::setPreserveDrawingBuffer(bool value)
{
if (m_preserveDrawingBuffer == value)
return;
m_preserveDrawingBuffer = value;
emit preserveDrawingBufferChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::preferLowPowerToHighPerformance
* Ignored. Defaults to \c{false}.
*/
bool CanvasContextAttributes::preferLowPowerToHighPerformance() const
{
return m_preferLowPowerToHighPerformance;
}
void CanvasContextAttributes::setPreferLowPowerToHighPerformance(bool value)
{
if (m_preferLowPowerToHighPerformance == value)
return;
m_preferLowPowerToHighPerformance = value;
emit preferLowPowerToHighPerformanceChanged(value);
}
/*!
* \qmlproperty bool ContextAttributes::failIfMajorPerformanceCaveat
* Ignored. Defaults to \c{false}.
*/
bool CanvasContextAttributes::failIfMajorPerformanceCaveat() const
{
return m_failIfMajorPerformanceCaveat;
}
void CanvasContextAttributes::setFailIfMajorPerformanceCaveat(bool value)
{
if (m_failIfMajorPerformanceCaveat == value)
return;
m_failIfMajorPerformanceCaveat = value;
emit failIfMajorPerformanceCaveatChanged(value);
}
/*!
* \internal
*/
QDebug operator<<(QDebug dbg, const CanvasContextAttributes &attribs)
{
dbg.nospace() << "ContextAttributes(\n alpha:"<< attribs.m_alpha <<
"\n depth:" << attribs.m_depth <<
"\n m_stencil:" << attribs.m_stencil <<
"\n antialias:"<< attribs.m_antialias <<
"\n premultipliedAlpha:" << attribs.m_premultipliedAlpha <<
"\n preserveDrawingBuffer:" << attribs.m_preserveDrawingBuffer <<
"\n preferLowPowerToHighPerformance:" << attribs.m_preferLowPowerToHighPerformance <<
"\n failIfMajorPerformanceCaveat:" << attribs.m_failIfMajorPerformanceCaveat << ")";
return dbg.maybeSpace();
}
QT_CANVAS3D_END_NAMESPACE
QT_END_NAMESPACE