OmaPhoto 1.0.0: the Linux port of Compositor
A layered image editor for Linux and Omarchy, ported from Compositor (github.com/robbietilton/Compositor), whose Swift source is its specification. It reads and writes Compositor's .comp projects. Packages for Ubuntu, Fedora and Arch come from the release workflow; scripts/install/ holds one install script per distribution family, and flake.nix serves NixOS. Co-Authored-By: Claude <noreply@anthropic.com>
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#include "LevelsFixtures.h"
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#include "Rendering/RasterSnapshot.h"
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#include <QSignalSpy>
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#include <QThreadPool>
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// Levels at its edges: order, signals, stale runs, sizes, samples.
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namespace {
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LevelsSettings inverted()
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{
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LevelsSettings settings;
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settings.setCurrent(LevelRange{0, 1, 255, 255, 0});
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return settings;
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}
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LevelsSettings brighter()
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{
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LevelsSettings settings;
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settings.setCurrent(LevelRange{0, 2, 255, 0, 255});
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return settings;
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}
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}
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class LevelsEdgeTests : public QObject {
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Q_OBJECT
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private slots:
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void beginEndsATransformAndALasso();
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void signalsFollowEveryStep();
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void turningPreviewOffDropsTheQueue();
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void anIdentityCommitIsImmediate();
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void stalePreviewsNeverLand();
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void aDoneRunLandsBeforeTheNextStarts();
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void theRebuildDropsText();
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void thePreviewIsTheEditsLayerAlone();
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void scaledSidesTruncateAsSwifts();
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void samplesStopAtTheDocumentAndClearPixels();
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};
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void LevelsEdgeTests::beginEndsATransformAndALasso()
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{
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const std::unique_ptr<EditorSession> session = rampSession();
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session->selectTool(NavigationTool::move);
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session->beginTransform();
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LayerTransform moved = session->activeLayer().value().transform;
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moved.origin = QPointF(1, 0);
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session->previewTransform(moved);
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session->beginLevels();
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QVERIFY(!session->transformEdit());
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QCOMPARE(session->levels().value().transform.origin, QPointF(1, 0));
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// Placed: its pixels map through the new place.
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QCOMPARE(session->levels().value().mapping.map(QPointF(0, 0)), QPointF(1, 0));
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QCOMPARE(session->levels().value().previewMapping, session->levels().value().mapping);
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session->cancelLevels();
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session->selectTool(NavigationTool::lasso);
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session->beginLasso(QPointF(0, 0), SelectionMode::replace);
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QVERIFY(session->lassoDraft());
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session->beginLevels();
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QVERIFY(!session->lassoDraft());
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session->cancelLevels();
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}
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void LevelsEdgeTests::signalsFollowEveryStep()
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{
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const std::unique_ptr<EditorSession> session = rampSession();
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QSignalSpy changed(session.get(), &EditorSession::changed);
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session->beginLevels();
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QCOMPARE(changed.count(), 1);
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QTRY_VERIFY(session->levels().value().histogramReady);
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QCOMPARE(changed.count(), 2);
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changed.clear();
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session->updateLevels(inverted(), true);
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QCOMPARE(changed.count(), 1);
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// The preview lands with a redraw and a signal.
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const int revision = session->brushRevision();
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QTRY_VERIFY(session->levels().value().preparedPreview);
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QCOMPARE(session->brushRevision(), revision + 1);
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QCOMPARE(changed.count(), 2);
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changed.clear();
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session->updateLevels(inverted(), false);
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QCOMPARE(changed.count(), 1);
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QVERIFY(!session->levels().value().preview);
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const int shown = session->brushRevision();
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changed.clear();
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session->cancelLevels();
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QCOMPARE(changed.count(), 1);
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QCOMPARE(session->brushRevision(), shown + 1);
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session->beginLevels();
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session->updateLevels(inverted(), false);
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const int committing = session->brushRevision();
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commit(*session);
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QCOMPARE(session->brushRevision(), committing + 1);
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}
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void LevelsEdgeTests::turningPreviewOffDropsTheQueue()
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{
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const std::unique_ptr<EditorSession> session = bigSession();
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session->beginLevels();
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session->updateLevels(brighter(), true);
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session->updateLevels(inverted(), true);
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QVERIFY(session->levels().value().pending);
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session->updateLevels(inverted(), false);
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QVERIFY(!session->levels().value().pending);
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QTest::qWait(200);
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QVERIFY(!session->levels().value().preparedPreview);
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session->cancelLevels();
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}
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void LevelsEdgeTests::anIdentityCommitIsImmediate()
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{
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const std::unique_ptr<EditorSession> session = rampSession();
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session->beginLevels();
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bool done = false;
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session->commitLevels([&done] { done = true; });
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QVERIFY(!session->levels() && !session->isProjectBusy());
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QTRY_VERIFY(done);
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}
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void LevelsEdgeTests::stalePreviewsNeverLand()
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{
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const std::unique_ptr<EditorSession> session = bigSession();
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// A closed edit's run never lands on the next one.
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session->beginLevels();
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session->updateLevels(brighter(), true);
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session->cancelLevels();
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session->beginLevels();
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session->updateLevels(inverted(), true);
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int revision = session->brushRevision();
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QTRY_VERIFY(session->levels().value().preparedPreview);
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QCOMPARE(session->brushRevision(), revision + 1);
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QCOMPARE(session->levels().value().preparedPreview.value().pixelColor(0, 0), QColor(Qt::cyan));
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// Nor one turned off, then on again.
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session->updateLevels(brighter(), true);
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session->updateLevels(brighter(), false);
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session->updateLevels(inverted(), true);
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revision = session->brushRevision();
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QTRY_VERIFY(session->levels().value().preparedPreview && !session->levels().value().pending);
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QCOMPARE(session->brushRevision(), revision + 1);
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// Nor one a commit overtook, nor the queued one.
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session->updateLevels(brighter(), true);
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session->updateLevels(inverted(), true);
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QVERIFY(session->levels().value().pending);
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revision = session->brushRevision();
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bool done = false;
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session->commitLevels([&done] { done = true; });
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QVERIFY(!session->levels().value().pending);
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QTRY_VERIFY(done);
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QCOMPARE(session->brushRevision(), revision + 1);
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}
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void LevelsEdgeTests::aDoneRunLandsBeforeTheNextStarts()
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{
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const std::unique_ptr<EditorSession> session = rampSession();
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session->beginLevels();
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QTRY_VERIFY(session->levels().value().histogramReady);
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const int revision = session->brushRevision();
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session->updateLevels(brighter(), true);
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// Done but undelivered: Qt would drop it for the next.
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QThreadPool::globalInstance()->waitForDone();
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session->updateLevels(inverted(), true);
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QVERIFY(session->levels().value().pending);
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QTRY_VERIFY(!session->levels().value().pending && session->brushRevision() == revision + 2);
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QCOMPARE(session->levels().value().preparedPreview.value().pixelColor(0, 0), QColor(Qt::white));
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session->cancelLevels();
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}
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void LevelsEdgeTests::theRebuildDropsText()
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{
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EditorSession session;
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session.createDocument(200, 100);
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session.selectTool(NavigationTool::type);
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session.beginText(QPointF(10, 10), true);
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TextDraft draft = session.textDraft().value();
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draft.style.content = QStringLiteral("Hi");
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session.setTextDraft(draft);
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QVERIFY(session.finishText());
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QVERIFY(session.activeLayer().value().liveText());
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session.beginLevels();
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session.updateLevels(inverted(), false);
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commit(session);
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QVERIFY(!session.activeLayer().value().text);
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}
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void LevelsEdgeTests::thePreviewIsTheEditsLayerAlone()
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{
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const std::unique_ptr<EditorSession> session = rampSession();
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session->beginLevels();
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session->updateLevels(inverted(), true);
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QTRY_VERIFY(session->levels().value().preparedPreview);
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const LevelsEdit &edit = session->levels().value();
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QVERIFY(edit.previewImage(edit.layerID));
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QVERIFY(!edit.previewImage(QUuid::createUuid()));
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session->cancelLevels();
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}
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void LevelsEdgeTests::scaledSidesTruncateAsSwifts()
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{
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// The long side sets the factor, tall or wide.
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for (const auto &[size, preview] : {std::pair(QSize(2, 9000), QSize(1, 8000)), std::pair(QSize(8311, 2), QSize(7999, 1))}) {
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EditorSession session;
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session.createDocument(size.width(), size.height());
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QImage image(size, QImage::Format_RGBA8888_Premultiplied);
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image.fill(Qt::red);
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session.insert(ImportedImage(image, image, QStringLiteral("Red")));
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session.beginLevels();
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QCOMPARE(session.levels().value().previewSource.size(), preview);
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session.cancelLevels();
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}
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}
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void LevelsEdgeTests::samplesStopAtTheDocumentAndClearPixels()
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{
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// The ramp at twice its width reaches past the document.
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EditorSession session;
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session.createDocument(6, 1);
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const QImage source = image(ramp);
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session.insert(ImportedImage(source, source, QStringLiteral("Ramp")));
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LayerTransform wide = session.activeLayer().value().transform;
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wide.size = QSizeF(12, 1);
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session.beginTransform();
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session.previewTransform(wide);
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session.commitTransform();
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session.beginLevels();
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session.setLevelsSampleMode(LevelsSample::black);
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session.sampleLevels(QPointF(6, 0.5));
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QVERIFY(session.levels().value().settings.isIdentity());
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session.cancelLevels();
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// A clear pixel sets nothing; a soft one reads unpremultiplied.
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const std::unique_ptr<EditorSession> plain = rampSession();
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plain->beginLevels();
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plain->setLevelsSampleMode(LevelsSample::black);
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plain->sampleLevels(QPointF(5.5, 0.5));
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QVERIFY(plain->levels().value().settings.isIdentity());
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plain->sampleLevels(QPointF(4.5, 0.5));
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const LevelsSettings soft = plain->levels().value().settings;
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QVERIFY(soft.ranges[1].black == 127.5 && soft.ranges[2].black == 63.75 && soft.ranges[3].black == 0);
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plain->cancelLevels();
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}
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QTEST_MAIN(LevelsEdgeTests)
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#include "LevelsEdgeTests.moc"
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