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/BrushStroke.h"
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#include "IO/ImageExporter.h"
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#include "AddressSpaceLimit.h"
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#include "RenderFixtures.h"
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#include "SelectionFixtures.h"
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#include <QElapsedTimer>
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// Masks from a selection, the delete target, and Invert.
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namespace {
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std::unique_ptr<EditorSession> editSession(int width = 100, int height = 40)
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{
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auto session = std::make_unique<EditorSession>();
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session->createDocument(width, height, true);
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return session;
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}
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void select(EditorSession &session, const QRectF &rect, bool antialiased = true)
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{
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session.setSelectionAntialiased(antialiased);
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session.applySelection(rectPath(rect), SelectionMode::replace, "Select");
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}
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// Premultiplied bytes of the rendered document at a pixel.
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std::vector<int> pixel(const QImage &image, int x, int y)
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{
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const QImage bytes = image.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
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const uchar *at = bytes.constScanLine(y) + x * 4;
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return {at[0], at[1], at[2], at[3]};
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}
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QImage render(const EditorSession &session)
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{
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return ImageExporter::render(session.projectSnapshot().value()).image;
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}
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// A 100×40 layer: red left half, blue right half.
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void twoColorLayer(EditorSession &session)
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{
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QImage image = BrushRaster::context(100, 40, false);
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QPainter painter(&image);
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painter.fillRect(QRect(0, 0, 50, 40), Qt::red);
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painter.fillRect(QRect(50, 0, 50, 40), Qt::blue);
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painter.end();
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session.insert(ImportedImage(image, image, "Two"));
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}
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// Runs the invert and waits for its step.
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void invert(EditorSession &session)
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{
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bool done = false;
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session.invertPixels([&] { done = true; });
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QTRY_VERIFY(done);
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}
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}
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class SelectionEditTests : public QObject {
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Q_OBJECT
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private slots:
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void maskButtonAddsWhiteMaskOrHidesTheSelection();
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void layerMenuMasksUseTheSelection();
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void maskFromSelectionLinesUpOnScaledLayers();
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void deletingWithTheMaskTargetedRemovesOnlyTheMask();
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void invertKeepsTransparencyStaysInSelectionAndWorksOnMasks();
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void invertIsFastOnLargeImagesAndHandlesUniformMasksWithASelection();
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void invertWorksInEveryTool();
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void invertIsRefusedWhereSwiftRefusesIt();
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void anInvertComputedFromOtherPixelsIsDropped();
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void aPaintedAssetThatCannotFlattenReportsAndFreesTheProject();
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};
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void SelectionEditTests::maskButtonAddsWhiteMaskOrHidesTheSelection()
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{
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const auto session = editSession();
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session->insert(filledRed());
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session->addMask();
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QVERIFY(session->activeLayer().value().mask.has_value());
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QCOMPARE(session->history.undoName(), QString("Add Reveal-All Mask"));
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QCOMPARE(pixel(render(*session), 30, 20)[3], 255);
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session->undo();
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QVERIFY(!session->activeLayer().value().mask.has_value());
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select(*session, QRectF(20, 10, 30, 20));
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session->addMask();
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QCOMPARE(session->history.undoName(), QString("Add Mask from Selection"));
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QVERIFY(!session->selection().has_value() && session->isMaskSelected());
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const QImage result = render(*session);
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// The selected area is black, hidden; the rest white.
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QCOMPARE(pixel(result, 30, 20)[3], 0);
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QCOMPARE(pixel(result, 5, 5)[3], 255);
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session->undo();
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QVERIFY(!session->activeLayer().value().mask.has_value() && session->selection().has_value());
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// A layer with a mask takes no second one.
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session->redo();
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const int count = session->history.undoCount();
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select(*session, QRectF(0, 0, 10, 10));
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session->addMask();
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QCOMPARE(session->history.undoCount(), count + 1);
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}
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void SelectionEditTests::layerMenuMasksUseTheSelection()
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{
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const auto session = editSession();
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session->insert(filledRed());
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select(*session, QRectF(20, 10, 30, 20));
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session->addMask(false);
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QCOMPARE(session->history.undoName(), QString("Add Mask from Selection"));
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QVERIFY(!session->selection().has_value() && session->isMaskSelected());
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const QImage result = render(*session);
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// The selected area is white, visible; the rest black.
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QCOMPARE(pixel(result, 30, 20)[3], 255);
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QCOMPARE(pixel(result, 5, 5)[3], 0);
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session->undo();
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QVERIFY(!session->activeLayer().value().mask.has_value() && session->selection().has_value());
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session->deselect();
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// No selection: a plain black mask.
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session->addMask(false);
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QCOMPARE(session->history.undoName(), QString("Add Hide-All Mask"));
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QCOMPARE(pixel(render(*session), 30, 20)[3], 0);
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}
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void SelectionEditTests::maskFromSelectionLinesUpOnScaledLayers()
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{
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const auto session = editSession(100, 100);
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QImage image = BrushRaster::context(50, 50, false);
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image.fill(Qt::blue);
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session->insert(ImportedImage(image, image, "Blue"));
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const QUuid id = session->activeLayerID().value();
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rewrite(*session, [&](ProjectSnapshot &snapshot) {
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record(snapshot, id).transform.origin = QPointF(0, 0);
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record(snapshot, id).transform.size = QSizeF(100, 100);
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});
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select(*session, QRectF(0, 0, 50, 50));
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session->addMask();
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// The mask uses the layer's pixel grid.
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QCOMPARE(session->activeLayer().value().mask.value().asset.size(), QSize(50, 50));
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const QImage result = render(*session);
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QCOMPARE(pixel(result, 25, 25)[3], 0);
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QCOMPARE(pixel(result, 75, 75)[3], 255);
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QCOMPARE(pixel(result, 75, 25)[3], 255);
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// A blank layer's grid is its rounded size.
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session->undo();
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session->addBlankLayer();
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select(*session, QRectF(10, 10, 20, 20));
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session->addMask();
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QCOMPARE(session->activeLayer().value().mask.value().asset.size(), QSize(100, 100));
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QCOMPARE(int(session->activeLayer().value().mask.value().asset.image().constScanLine(15)[15]), 0);
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QCOMPARE(int(session->activeLayer().value().mask.value().asset.image().constScanLine(5)[5]), 255);
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// A soft outline softens the mask's edge; hard, none.
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QPainterPath triangle;
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triangle.moveTo(0, 0);
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triangle.lineTo(100, 0);
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triangle.lineTo(0, 100);
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triangle.closeSubpath();
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for (const bool soft : {true, false}) {
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session->undo();
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session->setSelectionAntialiased(soft);
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session->applySelection(triangle, SelectionMode::replace, "Select");
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session->addMask();
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const QImage edge = session->activeLayer().value().mask.value().asset.image();
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int partial = 0;
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for (int x = 0; x < 100; ++x) {
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const int value = edge.constScanLine(99 - x)[x];
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partial += value > 0 && value < 255;
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}
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QCOMPARE(partial > 0, soft);
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}
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}
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void SelectionEditTests::deletingWithTheMaskTargetedRemovesOnlyTheMask()
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{
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const auto session = editSession();
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const QUuid id = session->activeLayerID().value();
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session->addLayerMask(false);
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QVERIFY(session->isMaskSelected());
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session->deleteLayerOrMask();
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QCOMPARE(session->activeLayer().value().id, id);
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QVERIFY(!session->activeLayer().value().mask.has_value());
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QCOMPARE(session->history.undoName(), QString("Delete Layer Mask"));
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QVERIFY(!session->isMaskSelected());
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session->undo();
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QVERIFY(session->activeLayer().value().mask.has_value());
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// The trash button follows the same target.
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session->selectLayerTarget(id, true);
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session->deleteLayerOrMask();
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QCOMPARE(session->document().value().layers.size(), size_t(1));
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QVERIFY(!session->activeLayer().value().mask.has_value());
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// With the layer's pixels targeted, the whole layer goes.
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session->addLayerMask();
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session->selectLayerTarget(id, false);
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session->deleteLayerOrMask();
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QVERIFY(session->document().value().layers.empty());
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}
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void SelectionEditTests::invertKeepsTransparencyStaysInSelectionAndWorksOnMasks()
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{
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const auto session = editSession();
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twoColorLayer(*session);
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// The top half only.
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select(*session, QRectF(0, 0, 100, 20));
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const int revision = session->brushRevision();
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invert(*session);
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QCOMPARE(session->history.undoName(), QString("Invert"));
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QVERIFY(!session->isProjectBusy());
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// The canvas's counter moves as Swift's does.
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QCOMPARE(session->brushRevision(), revision + 1);
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QImage result = render(*session);
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QCOMPARE(pixel(result, 10, 5), (std::vector<int>{0, 255, 255, 255}));
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QCOMPARE(pixel(result, 90, 5), (std::vector<int>{255, 255, 0, 255}));
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QCOMPARE(pixel(result, 10, 30), (std::vector<int>{255, 0, 0, 255}));
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session->deselect();
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// A half-transparent pixel keeps its alpha.
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const auto blank = editSession();
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QImage half = BrushRaster::context(100, 40, false);
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half.fill(QColor(255, 255, 255, 128));
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blank->insert(ImportedImage(half, half, "Half"));
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invert(*blank);
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const std::vector<int> faded = pixel(render(*blank), 50, 20);
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QVERIFY(std::abs(faded[3] - 128) <= 1 && faded[0] == 0);
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// On a mask black and white swap: white hides all.
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session->addLayerMask();
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session->toggleMaskLink(session->activeLayerID().value());
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invert(*session);
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QCOMPARE(session->history.undoName(), QString("Invert Mask"));
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QVERIFY(!session->activeLayer().value().mask.value().isLinked);
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result = render(*session);
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QCOMPARE(pixel(result, 50, 30)[3], 0);
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session->undo();
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QCOMPARE(pixel(render(*session), 50, 30)[3], 255);
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// A mask placed apart takes the selection where it shows.
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const QUuid id = session->activeLayerID().value();
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QImage white = BrushRaster::context(100, 40, true);
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white.fill(Qt::white);
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rewrite(*session, [&](ProjectSnapshot &snapshot) {
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setMask(snapshot, id, LayerMask::assetFrom(white));
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record(snapshot, id).maskPlacement = LayerTransform{.origin = {50, 0}, .size = {100, 40}};
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record(snapshot, id).maskLinked = false;
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});
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session->selectLayerTarget(id, true);
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select(*session, QRectF(50, 0, 50, 40));
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invert(*session);
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const QImage placed = session->activeLayer().value().mask.value().asset.image();
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QCOMPARE(int(placed.constScanLine(20)[25]), 0);
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QCOMPARE(int(placed.constScanLine(20)[75]), 255);
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}
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void SelectionEditTests::invertIsFastOnLargeImagesAndHandlesUniformMasksWithASelection()
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{
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const auto session = editSession(4000, 3000);
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QImage image = BrushRaster::context(4000, 3000, false);
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image.fill(Qt::red);
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session->insert(ImportedImage(image, image, "Big"));
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QElapsedTimer clock;
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clock.start();
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invert(*session);
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const qint64 whole = clock.restart();
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select(*session, QRectF(0, 0, 2000, 3000));
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invert(*session);
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const qint64 selected = clock.elapsed();
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QVERIFY2(whole < 1500 && selected < 1500, qPrintable(QStringLiteral("whole %1 ms, selected %2 ms").arg(whole).arg(selected)));
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const QImage result = render(*session);
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// Inverted twice, then once.
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QCOMPARE(pixel(result, 100, 100), (std::vector<int>{255, 0, 0, 255}));
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QCOMPARE(pixel(result, 3000, 100), (std::vector<int>{0, 255, 255, 255}));
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// A 1×1 mask with a selection inverts the selected part.
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session->addLayerMask();
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invert(*session);
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QCOMPARE(session->activeLayer().value().mask.value().asset.size(), QSize(4000, 3000));
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const QImage masked = render(*session);
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QCOMPARE(pixel(masked, 100, 100)[3], 0);
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QCOMPARE(pixel(masked, 3000, 100)[3], 255);
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}
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void SelectionEditTests::invertWorksInEveryTool()
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{
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const auto session = editSession();
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twoColorLayer(*session);
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for (const NavigationTool tool : {NavigationTool::brush, NavigationTool::move, NavigationTool::crop, NavigationTool::hand, NavigationTool::zoom, NavigationTool::lasso}) {
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session->selectTool(tool);
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QVERIFY2(session->canInvert(), qPrintable(label(tool)));
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}
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session->selectTool(NavigationTool::crop);
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invert(*session);
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QCOMPARE(session->history.undoName(), QString("Invert"));
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QCOMPARE(pixel(render(*session), 10, 5), (std::vector<int>{0, 255, 255, 255}));
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// A pending transform is applied first, then inverted.
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session->selectTool(NavigationTool::move);
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session->beginTransform();
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session->previewTransform(LayerTransform{.origin = {10, 0}, .size = {100, 40}});
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QVERIFY(session->transformEdit().has_value() && session->canInvert());
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invert(*session);
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QVERIFY(!session->transformEdit().has_value());
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QCOMPARE(session->history.undoName(), QString("Invert"));
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session->undo();
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QCOMPARE(session->history.undoName(), QString("Transform Layer"));
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QCOMPARE(session->activeLayer().value().transform.origin, QPointF(10, 0));
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}
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void SelectionEditTests::invertIsRefusedWhereSwiftRefusesIt()
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{
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EditorSession session;
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QVERIFY(!session.canInvert());
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bool done = false;
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session.invertPixels([&] { done = true; });
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QTRY_VERIFY(done);
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session.createDocument(100, 40, true);
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// A blank layer has no pixels; its mask inverts.
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QVERIFY(!session.canInvert());
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session.addLayerMask();
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QVERIFY(session.canInvert());
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session.toggleLayerMask();
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QVERIFY(!session.canInvert());
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session.toggleLayerMask();
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const QUuid blank = session.activeLayerID().value();
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twoColorLayer(session);
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const QUuid two = session.activeLayerID().value();
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QVERIFY(session.canInvert());
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session.setIsProjectBusy(true);
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QVERIFY(!session.canInvert());
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session.setIsProjectBusy(false);
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session.setIsImporting(true);
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QVERIFY(!session.canInvert());
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session.setIsImporting(false);
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session.setRenamingLayerID(session.activeLayerID());
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QVERIFY(!session.canInvert());
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session.setRenamingLayerID(std::nullopt);
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session.setShowsNewDocument(true);
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QVERIFY(!session.canInvert());
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session.setShowsNewDocument(false);
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session.setShowsImporter(true);
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QVERIFY(!session.canInvert());
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session.setShowsImporter(false);
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// Hidden, two selected, an empty selection, a folder.
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session.toggleLayerVisibility(session.activeLayerID().value());
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QVERIFY(!session.canInvert());
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session.toggleLayerVisibility(session.activeLayerID().value());
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session.selectLayers({two, blank}, two);
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QCOMPARE(session.activeLayerID(), std::optional(two));
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QVERIFY(!session.canInvert());
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session.selectLayers({two}, two);
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QVERIFY(session.canInvert());
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select(session, QRectF(10, 10, 10, 10));
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session.applySelection(rectPath(QRectF(0, 0, 100, 40)), SelectionMode::subtract, "Subtract");
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QVERIFY(session.selection().value().isEmpty() && !session.canInvert());
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const std::optional<CanvasDocument> before = session.document();
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const int count = session.history.undoCount();
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done = false;
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session.invertPixels([&] { done = true; });
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QTRY_VERIFY(done);
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QVERIFY(session.document() == before && session.history.undoCount() == count);
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session.deselect();
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session.addGroup();
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QVERIFY(!session.canInvert());
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session.addLayerMask();
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QVERIFY(session.canInvert());
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}
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void SelectionEditTests::anInvertComputedFromOtherPixelsIsDropped()
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{
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const auto session = editSession();
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twoColorLayer(*session);
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const QUuid id = session->activeLayerID().value();
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const int revision = session->brushRevision();
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bool done = false;
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session->invertPixels([&] { done = true; });
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QVERIFY(session->isProjectBusy());
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// Meanwhile the layer takes other pixels, as a load would.
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QImage green = BrushRaster::context(100, 40, false);
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green.fill(Qt::green);
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rewrite(*session, [&](ProjectSnapshot &snapshot) { snapshot.images.insert_or_assign(id, ImportedImage(green, green, "Green")); });
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QTRY_VERIFY(done);
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QVERIFY(!session->isProjectBusy());
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QCOMPARE(session->history.undoCount(), 0);
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QCOMPARE(session->brushRevision(), revision);
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QCOMPARE(pixel(render(*session), 10, 5), (std::vector<int>{0, 255, 0, 255}));
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// Gone altogether, it is dropped as well.
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done = false;
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session->invertPixels([&] { done = true; });
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rewrite(*session, [&](ProjectSnapshot &snapshot) {
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snapshot.manifest.layers.clear();
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snapshot.images.clear();
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snapshot.manifest.activeLayerID = std::nullopt;
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});
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QTRY_VERIFY(done);
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QVERIFY(session->document().value().layers.empty() && !session->isProjectBusy());
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// The document itself gone: the callback still comes.
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twoColorLayer(*session);
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done = false;
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session->invertPixels([&] { done = true; });
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session->clearProject();
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QTRY_VERIFY(done);
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QVERIFY(!session->document().has_value() && !session->isProjectBusy());
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// Only the mask replaced: the mask's invert is dropped too.
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session->createDocument(100, 40, true);
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twoColorLayer(*session);
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const QUuid two = session->activeLayerID().value();
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session->addLayerMask();
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done = false;
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session->invertPixels([&] { done = true; });
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QImage gray = BrushRaster::context(100, 40, true);
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gray.fill(QColor(100, 100, 100));
|
||||
rewrite(*session, [&](ProjectSnapshot &snapshot) { setMask(snapshot, two, LayerMask::assetFrom(gray)); });
|
||||
QTRY_VERIFY(done);
|
||||
QCOMPARE(int(session->activeLayer().value().mask.value().asset.image().constScanLine(0)[0]), 100);
|
||||
QCOMPARE(session->history.undoCount(), 0);
|
||||
QVERIFY(!session->isProjectBusy());
|
||||
}
|
||||
|
||||
void SelectionEditTests::aPaintedAssetThatCannotFlattenReportsAndFreesTheProject()
|
||||
{
|
||||
// A painted base of 48 MB, flattened on first use.
|
||||
const auto raster = std::make_shared<const RasterSnapshot>(4000, 3000, solid(2, 2, qRgba(255, 0, 0, 255)), QRectF(0, 0, 2, 2), std::vector<BrushPatch>{});
|
||||
const auto session = editSession(4000, 3000);
|
||||
session->insert(ImportedImage(raster, QImage(), "Painted"));
|
||||
QVERIFY(session->canInvert());
|
||||
const int count = session->history.undoCount();
|
||||
bool done = false;
|
||||
{
|
||||
const AddressSpaceLimit limit(16 * 1024 * 1024);
|
||||
session->invertPixels([&] { done = true; });
|
||||
}
|
||||
QVERIFY(session->brushError().has_value() && !session->isProjectBusy());
|
||||
QTRY_VERIFY(done);
|
||||
QCOMPARE(session->history.undoCount(), count);
|
||||
QVERIFY(!raster->hasMaterializedPixels());
|
||||
}
|
||||
|
||||
QTEST_GUILESS_MAIN(SelectionEditTests)
|
||||
#include "SelectionEditTests.moc"
|
||||
Reference in new issue
Block a user