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 "Document/ProjectWorkspace.h"
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#include "Rendering/RasterSnapshot.h"
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#include "SessionFixtures.h"
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#include <QFutureWatcher>
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#include <QMimeData>
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#include <QSemaphore>
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#include <QThreadPool>
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#include <QtTest>
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// Layers copied from one open project into another.
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namespace {
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ImportedImage solid(QColor colour, int alpha, const QString &name)
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{
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QImage image(2, 2, QImage::Format_RGBA8888_Premultiplied);
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colour.setAlpha(alpha);
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image.fill(colour);
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return ImportedImage(image, QImage(), name);
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}
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// A layer that claims this many pixels and holds one.
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ImportedImage vast(int width, int height)
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{
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QImage dot(1, 1, QImage::Format_RGBA8888_Premultiplied);
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dot.fill(Qt::red);
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return ImportedImage(std::make_shared<const RasterSnapshot>(width, height, dot, QRectF(0, 0, 1, 1), std::vector<BrushPatch>{}), QImage(), "Vast");
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}
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bool copied(ProjectWorkspace &workspace, QUuid id, std::optional<QUuid> destination, std::optional<QPointF> point = std::nullopt)
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{
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bool done = false;
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workspace.copyLayer(id, destination, point, [&] { done = true; });
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return QTest::qWaitFor([&] { return done; }, 10'000);
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}
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QStringList names(const EditorSession &session)
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{
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QStringList result;
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for (const ImageLayer &layer : session.document().value().layers)
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result << layer.name;
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return result;
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}
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}
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class ProjectCopyTests : public QObject {
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Q_OBJECT
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private slots:
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void whatMayNotBeCopiedChangesNothing();
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void theHundredMegapixelsCountAcrossBothProjects();
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void aFolderTravelsWithItsContentsAndItsLinks();
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void aMaskFromOutsideTheCopyIsBakedIn();
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void anAdjustmentLetsGoOfItsBaseUnbaked();
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void effectsStayBehindAsSwiftsListLeavesThem();
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void theCopyLandsAtThePointOrTheCentre();
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void aNewTabGetsTheSourcesCanvasInOneStep();
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void bothProjectsAreBusyWhileTheCopyBakes();
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void aBakeThatFailsCopiesNothingAndSaysWhy();
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void aDroppedRowMayCarryTheNullId();
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void ofTwoTabsWithTheLayerTheFirstIsTheSource();
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};
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void ProjectCopyTests::whatMayNotBeCopiedChangesNothing()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(8, 8);
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from.session.insert(solid(Qt::red, 255, "Red"));
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const QUuid id = from.session.activeLayerID().value();
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(8, 8);
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target.session.insert(solid(Qt::blue, 255, "Blue"));
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QSignalSpy changes(&workspace, &ProjectWorkspace::changed);
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QSignalSpy edits(&target.session, &EditorSession::changed);
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// A stranger, the layer's own tab, a missing tab.
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QVERIFY(copied(workspace, QUuid::createUuid(), target.id));
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QVERIFY(copied(workspace, id, from.id));
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QVERIFY(copied(workspace, id, QUuid::createUuid()));
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// A source or a target amid a transform.
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target.session.beginTransform();
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QVERIFY(copied(workspace, id, target.id));
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target.session.cancelTransform();
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from.session.selectLayer(id);
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from.session.beginTransform();
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QVERIFY(copied(workspace, id, target.id));
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from.session.cancelTransform();
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QCOMPARE(names(target.session), (QStringList{"Blue"}));
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QCOMPARE(int(workspace.tabs().size()), 2);
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QCOMPARE(changes.count(), 0);
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// A target under a sheet or error; a busy front.
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const qsizetype before = edits.count();
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target.session.setShowsImporter(true);
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QVERIFY(copied(workspace, id, target.id));
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target.session.setShowsImporter(false);
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workspace.select(from.id);
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target.session.setImportError(QString("earlier"));
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QVERIFY(target.session.canEditLayers() && copied(workspace, id, target.id));
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target.session.setImportError(std::nullopt);
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workspace.select(target.id);
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workspace.current().session.setIsProjectBusy(true);
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QVERIFY(copied(workspace, id, std::nullopt));
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workspace.current().session.setIsProjectBusy(false);
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QCOMPARE(names(target.session), (QStringList{"Blue"}));
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QCOMPARE(int(workspace.tabs().size()), 2);
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QCOMPARE(changes.count(), 2);
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QCOMPARE(edits.count(), before + 6);
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}
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void ProjectCopyTests::theHundredMegapixelsCountAcrossBothProjects()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(8, 8);
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from.session.insert(vast(10'000, 10'000));
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const QUuid id = from.session.activeLayerID().value();
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(8, 8);
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// Exactly the limit fits.
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QVERIFY(copied(workspace, id, target.id));
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QCOMPARE(names(target.session), (QStringList{"Vast"}));
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QCOMPARE(target.session.importError(), std::nullopt);
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// One pixel more, counted across both, does not.
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target.session.undo();
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target.session.insert(solid(Qt::blue, 255, "Dot"));
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target.session.setRenamingLayerID(std::nullopt);
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QVERIFY(copied(workspace, id, target.id));
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QCOMPARE(names(target.session), (QStringList{"Dot"}));
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QCOMPARE(target.session.importError(), std::optional(QString("The copied layers exceed this project’s 100-megapixel limit.")));
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QVERIFY(!workspace.isManaging() && !from.session.isProjectBusy() && !target.session.isProjectBusy());
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// While that error shows, the front tab lets nothing start.
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QVERIFY(!workspace.canSwitch() && copied(workspace, id, std::nullopt));
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QCOMPARE(int(workspace.tabs().size()), 2);
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target.session.setImportError(std::nullopt);
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// Refused for a new tab, that tab stays.
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from.session.insert(vast(1, 1));
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const QUuid extra = from.session.activeLayerID().value();
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from.session.addGroup();
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const QUuid folder = from.session.activeLayerID().value();
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QVERIFY(from.session.placeLayer(id, folder));
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QVERIFY(from.session.placeLayer(extra, folder));
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QVERIFY(copied(workspace, folder, std::nullopt));
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QCOMPARE(int(workspace.tabs().size()), 3);
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QVERIFY(!workspace.current().session.document().has_value());
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QVERIFY(workspace.current().session.importError().has_value());
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}
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void ProjectCopyTests::aFolderTravelsWithItsContentsAndItsLinks()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(8, 8);
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from.session.insert(solid(Qt::green, 255, "Stays"));
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from.session.addGroup();
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const QUuid folder = from.session.activeLayerID().value();
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from.session.insert(solid(Qt::red, 255, "Base"));
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const QUuid base = from.session.activeLayerID().value();
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from.session.insert(solid(Qt::blue, 255, "Clipped"));
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const QUuid clipped = from.session.activeLayerID().value();
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from.session.toggleClippingMask(clipped);
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const std::optional<CanvasDocument> before = from.session.document();
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(8, 8);
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target.session.insert(solid(Qt::white, 255, "Own"));
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// Copied from the tab in front into one behind it.
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workspace.select(from.id);
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bool switchable = false;
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connect(&workspace, &ProjectWorkspace::changed, this, [&] { switchable = workspace.canSwitch(); });
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QVERIFY(copied(workspace, folder, target.id));
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QVERIFY(switchable && workspace.canSwitch());
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// The source is untouched; the copy is whole and renumbered.
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QCOMPARE(from.session.document(), before);
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QCOMPARE(names(target.session), (QStringList{"Own", "Folder 1", "Base", "Clipped"}));
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const std::vector<ImageLayer> layers = target.session.document().value().layers;
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QVERIFY(layers[1].id != folder && layers[2].id != base && layers[3].id != clipped);
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QVERIFY(layers[1].isGroup && layers[1].parentID == std::nullopt);
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QCOMPARE(layers[2].parentID, std::optional(layers[1].id));
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QCOMPARE(layers[3].parentID, std::optional(layers[1].id));
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QCOMPARE(layers[3].maskSourceID, std::optional(layers[2].id));
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// The same pixels: nothing inside the copy needed baking.
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QVERIFY(layers[3].asset.value().identity() == before.value().layers[3].asset.value().identity());
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QCOMPARE(target.session.activeLayerID(), std::optional(layers[1].id));
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QCOMPARE(workspace.selectedID(), target.id);
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QCOMPARE(target.session.history.undoName(), QString("Copy Layers from Project"));
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// A child copied alone leaves its folder behind.
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QVERIFY(copied(workspace, base, target.id));
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QCOMPARE(target.session.document().value().layers.back().parentID, std::nullopt);
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// Each copy's watcher goes once it has answered.
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QTRY_VERIFY(workspace.findChildren<QFutureWatcherBase *>().isEmpty());
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}
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void ProjectCopyTests::aMaskFromOutsideTheCopyIsBakedIn()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(2, 2);
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from.session.insert(solid(Qt::red, 128, "Base"));
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from.session.insert(solid(Qt::blue, 255, "Top"));
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const QUuid top = from.session.activeLayerID().value();
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from.session.toggleClippingMask(top);
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const ImageIdentity pixels = from.session.activeLayer().value().asset.value().identity();
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(2, 2);
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QVERIFY(copied(workspace, top, target.id));
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const ImageLayer copy = target.session.document().value().layers.front();
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QCOMPARE(copy.maskSourceID, std::nullopt);
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QVERIFY(copy.asset.value().identity() != pixels);
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const QColor pixel = copy.asset.value().image().pixelColor(0, 0);
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QVERIFY2(std::abs(pixel.alpha() - 128) <= 1, qPrintable(QString::number(pixel.alpha())));
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QCOMPARE(pixel.blue(), 255);
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// The source keeps its link and its own pixels.
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const ImageLayer kept = layerWith(from.session, top);
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QVERIFY(kept.maskSourceID.has_value() && kept.asset.value().identity() == pixels);
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}
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void ProjectCopyTests::anAdjustmentLetsGoOfItsBaseUnbaked()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(2, 2);
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from.session.insert(solid(Qt::red, 255, "Base"));
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from.session.addAdjustment(AdjustmentKind::curves);
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from.session.setAdjustmentEditingID(std::nullopt);
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const QUuid adjustment = from.session.activeLayerID().value();
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from.session.toggleClippingMask(adjustment);
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QVERIFY(from.session.activeLayer().value().maskSourceID.has_value());
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(2, 2);
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QVERIFY(copied(workspace, adjustment, target.id));
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// Settings travel; no pixels to bake the base into.
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const ImageLayer copy = target.session.document().value().layers.front();
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QVERIFY(!copy.maskSourceID && !copy.asset && copy.adjustment == LayerAdjustment{AdjustmentKind::curves});
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}
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void ProjectCopyTests::effectsStayBehindAsSwiftsListLeavesThem()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(2, 2);
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from.session.insert(solid(Qt::red, 255, "Framed"));
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LayerEffects effects;
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effects.stroke = StrokeEffect();
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from.session.setEffects(effects);
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const QUuid framed = from.session.activeLayerID().value();
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(2, 2);
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QVERIFY(copied(workspace, framed, target.id));
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const ImageLayer copy = target.session.document().value().layers.front();
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QVERIFY(copy.name == QString("Framed") && !copy.effects);
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QVERIFY(layerWith(from.session, framed).effects == effects);
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}
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void ProjectCopyTests::theCopyLandsAtThePointOrTheCentre()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(20, 10);
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from.session.insert(solid(Qt::red, 255, "Red"), QPointF(5, 5));
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const QUuid id = from.session.activeLayerID().value();
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// A mask placed two to the right rides along.
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rewrite(from.session, [&](ProjectSnapshot &snapshot) {
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setMask(snapshot, id, coverage());
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record(snapshot, id).maskPlacement = LayerTransform{.origin = {6, 4}, .size = {2, 2}};
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});
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(40, 30);
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QVERIFY(copied(workspace, id, target.id));
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QVERIFY(copied(workspace, id, target.id, QPointF(7, 9)));
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const std::vector<ImageLayer> layers = target.session.document().value().layers;
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QCOMPARE(layers[0].transform.center(), QPointF(20, 15));
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QCOMPARE(layers[0].mask.value().placement.value().origin, QPointF(21, 14));
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QCOMPARE(layers[1].transform.center(), QPointF(7, 9));
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QCOMPARE(layers[1].mask.value().placement.value().origin, QPointF(8, 8));
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QCOMPARE(layers[1].mask.value().placement.value().size, QSizeF(2, 2));
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// The layer asked for is the anchor, first or not.
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from.session.addGroup();
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const QUuid folder = from.session.activeLayerID().value();
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QVERIFY(from.session.placeLayer(id, folder));
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rewrite(from.session, [&](ProjectSnapshot &snapshot) { std::reverse(snapshot.manifest.layers.begin(), snapshot.manifest.layers.end()); });
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QCOMPARE(from.session.document().value().layers.front().id, id);
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const QPointF offset = layerWith(from.session, id).transform.center() - layerWith(from.session, folder).transform.center();
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QVERIFY(copied(workspace, folder, target.id, QPointF(30, 20)));
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const std::vector<ImageLayer> placed = target.session.document().value().layers;
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QCOMPARE(placed[placed.size() - 1].transform.center(), QPointF(30, 20));
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QCOMPARE(placed[placed.size() - 2].transform.center(), QPointF(30, 20) + offset);
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QVERIFY(!offset.isNull());
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}
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void ProjectCopyTests::aNewTabGetsTheSourcesCanvasInOneStep()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(20, 10);
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from.session.insert(solid(Qt::red, 255, "Red"), QPointF(5, 5));
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const QUuid id = from.session.activeLayerID().value();
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QVERIFY(copied(workspace, id, std::nullopt));
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QCOMPARE(int(workspace.tabs().size()), 2);
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EditorSession &made = workspace.current().session;
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QVERIFY(&made != &from.session);
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QCOMPARE(made.document().value().size(), QSizeF(20, 10));
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QCOMPARE(names(made), (QStringList{"Red"}));
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QCOMPARE(made.document().value().layers.front().transform.center(), QPointF(10, 5));
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QCOMPARE(made.history.undoCount(), 1);
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QCOMPARE(made.history.undoName(), QString("Copy Layers from Project"));
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made.undo();
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QVERIFY(!made.document().has_value());
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}
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void ProjectCopyTests::bothProjectsAreBusyWhileTheCopyBakes()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(2, 2);
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// A painted base: its pixels flatten on first use.
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const auto raster = std::make_shared<const RasterSnapshot>(2, 2, solid(Qt::red, 128, "").image(), QRectF(0, 0, 2, 2), std::vector<BrushPatch>{});
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from.session.insert(ImportedImage(raster, QImage(), "Base"));
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from.session.insert(solid(Qt::blue, 255, "Top"));
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const QUuid top = from.session.activeLayerID().value();
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from.session.toggleClippingMask(top);
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(2, 2);
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// Every worker is held: the bake has to queue.
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QThreadPool *pool = QThreadPool::globalInstance();
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const int workers = pool->maxThreadCount();
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QSemaphore held, gate;
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const auto letGo = qScopeGuard([&] {
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gate.release(workers);
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pool->waitForDone();
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});
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for (int index = 0; index < workers; ++index) {
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pool->start([&] {
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held.release();
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gate.acquire();
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});
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}
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QVERIFY(held.tryAcquire(workers, 10'000));
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bool done = false;
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workspace.copyLayer(top, target.id, std::nullopt, [&] { done = true; });
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// Back at once: both busy, nothing baked, nothing placed.
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QVERIFY(workspace.isManaging() && from.session.isProjectBusy() && target.session.isProjectBusy());
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QVERIFY(target.session.document().value().layers.empty() && !done && !raster->hasMaterializedPixels());
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gate.release(workers);
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// No event runs in this wait: a worker flattens.
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QElapsedTimer clock;
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clock.start();
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while (!raster->hasMaterializedPixels() && clock.elapsed() < 10'000)
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QTest::qSleep(5);
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QVERIFY(raster->hasMaterializedPixels() && target.session.isProjectBusy());
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QTRY_VERIFY(done);
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QVERIFY(!workspace.isManaging() && !from.session.isProjectBusy() && !target.session.isProjectBusy());
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QCOMPARE(names(target.session), (QStringList{"Top"}));
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}
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void ProjectCopyTests::aBakeThatFailsCopiesNothingAndSaysWhy()
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{
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ProjectWorkspace workspace;
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ProjectTab &from = workspace.current();
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from.session.createDocument(2, 2);
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from.session.insert(solid(Qt::red, 128, "Base"));
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const QUuid base = from.session.activeLayerID().value();
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// An asset without pixels: no surface can hold it.
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from.session.insert(ImportedImage(QImage(), QImage(), "Void"));
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const QUuid hollow = from.session.activeLayerID().value();
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QVERIFY(from.session.linkMask(base, hollow));
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ProjectTab &target = workspace.addTab();
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target.session.createDocument(2, 2);
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// From the front tab: the last signal sees it free.
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workspace.select(from.id);
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bool switchable = false;
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connect(&workspace, &ProjectWorkspace::changed, this, [&] { switchable = workspace.canSwitch(); });
|
||||
QTest::ignoreMessage(QtWarningMsg, "cannot copy the layers: The canvas could not be rendered. Try a smaller canvas.");
|
||||
QVERIFY(copied(workspace, hollow, target.id));
|
||||
QVERIFY(switchable && workspace.canSwitch());
|
||||
QVERIFY(target.session.document().value().layers.empty());
|
||||
QCOMPARE(target.session.importError(), std::optional(QString("The canvas could not be rendered. Try a smaller canvas.")));
|
||||
QCOMPARE(target.session.history.undoCount(), 1);
|
||||
QVERIFY(!workspace.isManaging() && !from.session.isProjectBusy() && !target.session.isProjectBusy());
|
||||
}
|
||||
|
||||
void ProjectCopyTests::aDroppedRowMayCarryTheNullId()
|
||||
{
|
||||
ProjectWorkspace workspace;
|
||||
ProjectTab &from = workspace.current();
|
||||
from.session.createDocument(8, 8);
|
||||
from.session.insert(solid(Qt::red, 255, "Zero"));
|
||||
const QUuid old = from.session.activeLayerID().value();
|
||||
// All zeros is an id a project file may hold.
|
||||
rewrite(from.session, [&](ProjectSnapshot &snapshot) {
|
||||
record(snapshot, old).id = QUuid();
|
||||
snapshot.manifest.activeLayerID = QUuid();
|
||||
auto pixels = snapshot.images.extract(old);
|
||||
pixels.key() = QUuid();
|
||||
snapshot.images.insert(std::move(pixels));
|
||||
});
|
||||
QMimeData provider;
|
||||
provider.setData(ProjectWorkspace::layerType, uuidString(QUuid()).toUtf8());
|
||||
bool done = false;
|
||||
workspace.receiveProviders(provider, std::nullopt, std::nullopt, [&] { done = true; });
|
||||
QTRY_VERIFY(done);
|
||||
QCOMPARE(int(workspace.tabs().size()), 2);
|
||||
QCOMPARE(names(workspace.current().session), (QStringList{"Zero"}));
|
||||
QVERIFY(!workspace.current().session.activeLayerID().value().isNull());
|
||||
}
|
||||
|
||||
void ProjectCopyTests::ofTwoTabsWithTheLayerTheFirstIsTheSource()
|
||||
{
|
||||
ProjectWorkspace workspace;
|
||||
ProjectTab &first = workspace.current();
|
||||
first.session.createDocument(8, 8);
|
||||
first.session.insert(solid(Qt::red, 255, "One"));
|
||||
const QUuid id = first.session.activeLayerID().value();
|
||||
// A project saved twice and opened twice shares its ids.
|
||||
ProjectTab &second = workspace.addTab();
|
||||
ProjectSnapshot twin = first.session.projectSnapshot().value();
|
||||
record(twin, id).name = "Two";
|
||||
second.session.installProject(twin, QString("twin.comp"));
|
||||
QVERIFY(copied(workspace, id, std::nullopt));
|
||||
QCOMPARE(int(workspace.tabs().size()), 3);
|
||||
QCOMPARE(names(workspace.current().session), (QStringList{"One"}));
|
||||
}
|
||||
|
||||
QTEST_MAIN(ProjectCopyTests)
|
||||
#include "ProjectCopyTests.moc"
|
||||
Reference in new issue
Block a user