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Allow creating a valid QColorSpace one value at a time

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The change to using setters left a quirk from the previous un-mutable
design where you couldn't set values on an invalid color space and
create a valid one.

This changes that so it works as expected for an imperative API, but
is also needed for the declarative QML bindings.

Change-Id: I246cfc38b364b156238151c42c1df82a3f1cc9d3
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
This commit is contained in:
Allan Sandfeld Jensen 2019-12-12 11:33:58 +01:00
parent c76dd72dc6
commit 967e55a628
2 changed files with 30 additions and 10 deletions
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28
src/gui/painting/qcolorspace.cpp
View File

@ -549,8 +549,12 @@ float QColorSpace::gamma() const noexcept
*/
void QColorSpace::setTransferFunction(QColorSpace::TransferFunction transferFunction, float gamma)
{
if (!isValid() || transferFunction == QColorSpace::TransferFunction::Custom)
if (transferFunction == TransferFunction::Custom)
return;
if (!d_ptr) {
d_ptr = new QColorSpacePrivate(Primaries::Custom, transferFunction, gamma);
return;
}
if (d_ptr->transferFunction == transferFunction && d_ptr->gamma == gamma)
return;
QColorSpacePrivate::getWritable(*this); // detach
@ -585,8 +589,12 @@ QColorSpace QColorSpace::withTransferFunction(QColorSpace::TransferFunction tran
*/
void QColorSpace::setPrimaries(QColorSpace::Primaries primariesId)
{
if (!isValid() || primariesId == QColorSpace::Primaries::Custom)
if (primariesId == Primaries::Custom)
return;
if (!d_ptr) {
d_ptr = new QColorSpacePrivate(primariesId, TransferFunction::Custom, 0.0f);
return;
}
if (d_ptr->primaries == primariesId)
return;
QColorSpacePrivate::getWritable(*this); // detach
@ -605,11 +613,13 @@ void QColorSpace::setPrimaries(QColorSpace::Primaries primariesId)
void QColorSpace::setPrimaries(const QPointF &whitePoint, const QPointF &redPoint,
const QPointF &greenPoint, const QPointF &bluePoint)
{
if (!isValid())
return;
QColorSpacePrimaries primaries(whitePoint, redPoint, greenPoint, bluePoint);
if (!primaries.areValid())
return;
if (!d_ptr) {
d_ptr = new QColorSpacePrivate(primaries, TransferFunction::Custom, 0.0f);
return;
}
QColorMatrix toXyz = primaries.toXyzMatrix();
if (QColorVector(primaries.whitePoint) == d_ptr->whitePoint && toXyz == d_ptr->toXyz)
return;
@ -692,12 +702,14 @@ bool operator==(const QColorSpace &colorSpace1, const QColorSpace &colorSpace2)
const bool valid1 = colorSpace1.isValid();
const bool valid2 = colorSpace2.isValid();
if (!valid1 && !valid2)
return colorSpace1.d_ptr->iccProfile == colorSpace2.d_ptr->iccProfile;
else if (!valid1 || !valid2)
if (valid1 != valid2)
return false;
if (!valid1 && !valid2) {
if (!colorSpace1.d_ptr->iccProfile.isEmpty() || !colorSpace2.d_ptr->iccProfile.isEmpty())
return colorSpace1.d_ptr->iccProfile == colorSpace2.d_ptr->iccProfile;
}
// At this point one or both color spaces are unknown but valid, and must be compared in detail instead
// At this point one or both color spaces are unknown, and must be compared in detail instead
if (colorSpace1.primaries() != QColorSpace::Primaries::Custom && colorSpace2.primaries() != QColorSpace::Primaries::Custom) {
if (colorSpace1.primaries() != colorSpace2.primaries())

12
tests/auto/gui/painting/qcolorspace/tst_qcolorspace.cpp
View File

@ -413,6 +413,7 @@ void tst_QColorSpace::primaries2()
void tst_QColorSpace::invalidPrimaries()
{
QTest::ignoreMessage(QtWarningMsg, QRegularExpression("QColorSpace attempted constructed from invalid primaries"));
QColorSpace custom(QPointF(), QPointF(), QPointF(), QPointF(), QColorSpace::TransferFunction::Linear);
QVERIFY(!custom.isValid());
}
@ -444,8 +445,15 @@ void tst_QColorSpace::changeTransferFunction()
QColorSpace undefined;
QCOMPARE(undefined.withTransferFunction(QColorSpace::TransferFunction::Linear), undefined);
undefined.setTransferFunction(QColorSpace::TransferFunction::SRgb);
QCOMPARE(undefined, QColorSpace());
QColorSpace partial;
partial.setTransferFunction(QColorSpace::TransferFunction::SRgb);
QCOMPARE(partial.transferFunction(), QColorSpace::TransferFunction::SRgb);
QVERIFY(!partial.isValid());
partial.setPrimaries(QColorSpace::Primaries::SRgb);
QVERIFY(partial.isValid());
QCOMPARE(partial, QColorSpace(QColorSpace::SRgb));
}
void tst_QColorSpace::changePrimaries()