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 "SelectionFixtures.h"
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// Outlines, modes, moves and resizes of the selection.
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class SelectionTests : public QObject {
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Q_OBJECT
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private slots:
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void replaceAddAndSubtractCombineOutlines();
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void modifiersPickModeAndSelectionIsClippedToCanvas();
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void emptySelectionIsDistinctFromNoSelection();
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void clickDeselectsAndSelectionStepsUndo();
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void polygonalCornersCanBeRemovedAndClosed();
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void antialiasingControlsEdgeCoverage();
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void selectAllInverseAndToolSwitchCancelsDraft();
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void cursorBadgeFollowsModifiersButKeepsAnOutlinesStartingMode();
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void draggingMovesTheOutlineInWholePixelsAsOneUndo();
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void movingOffCanvasAndBackKeepsTheWholeShape();
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void arrowNudgesAndMoveIsOnlyForNewModeOnARealSelection();
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void expandAndContractGrowAndShrinkTheOutline();
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void expandStaysOnCanvasAndContractCanEmptyTheSelection();
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void theClipCoversTheOutlinesRegionAndAnEmptyOneNothing();
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void draftsRefuseWildPointsAndOtherToolsAndKeepTheirCursor();
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};
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void SelectionTests::replaceAddAndSubtractCombineOutlines()
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{
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const auto session = selectionSession();
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lasso(*session, square(10, 10, 40));
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QCOMPARE(coverage(*session, 30, 30), 255);
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QCOMPARE(coverage(*session, 70, 70), 0);
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lasso(*session, square(50, 50, 40), SelectionMode::add);
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QCOMPARE(coverage(*session, 30, 30), 255);
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QCOMPARE(coverage(*session, 70, 70), 255);
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lasso(*session, square(20, 20, 20), SelectionMode::subtract);
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QCOMPARE(coverage(*session, 30, 30), 0);
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QCOMPARE(coverage(*session, 15, 15), 255);
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lasso(*session, square(60, 10, 20));
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QCOMPARE(coverage(*session, 70, 20), 255);
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QCOMPARE(coverage(*session, 70, 70), 0);
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QCOMPARE(coverage(*session, 15, 15), 0);
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}
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void SelectionTests::modifiersPickModeAndSelectionIsClippedToCanvas()
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{
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const auto session = selectionSession();
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QVERIFY(session->selectionMode(false, false) == SelectionMode::replace);
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QVERIFY(session->selectionMode(true, false) == SelectionMode::add);
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QVERIFY(session->selectionMode(true, true) == SelectionMode::subtract);
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QVERIFY(session->selectionMode(false, true) == SelectionMode::subtract);
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lasso(*session, square(-50, -50, 100));
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const QRectF box = bounds(*session);
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QVERIFY(box.left() >= 0 && box.top() >= 0 && box.right() <= 50.001 && box.bottom() <= 50.001);
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QCOMPARE(coverage(*session, 49, 49), 255);
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QCOMPARE(coverage(*session, 50, 50), 0);
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}
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void SelectionTests::emptySelectionIsDistinctFromNoSelection()
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{
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const auto session = selectionSession();
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// Nothing to subtract from.
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lasso(*session, square(0, 0, 50), SelectionMode::subtract);
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QVERIFY(!session->selection().has_value());
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lasso(*session, square(10, 10, 20));
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lasso(*session, square(0, 0, 60), SelectionMode::subtract);
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QVERIFY(session->selection().value().isEmpty());
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QCOMPARE(coverage(*session, 20, 20), 0);
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session->deselect();
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QVERIFY(!session->selection().has_value());
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// Deselecting nothing is refused and records nothing.
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const int count = session->history.undoCount();
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session->deselect();
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QCOMPARE(session->history.undoCount(), count);
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}
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void SelectionTests::clickDeselectsAndSelectionStepsUndo()
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{
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const auto session = selectionSession();
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const int count = session->history.undoCount();
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lasso(*session, square(10, 10, 40));
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QCOMPARE(session->history.undoCount(), count + 1);
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QCOMPARE(session->history.undoName(), QString("Lasso"));
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lasso(*session, {QPointF(5, 5)});
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QVERIFY(!session->selection().has_value());
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QCOMPARE(session->history.undoName(), QString("Deselect"));
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session->undo();
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QVERIFY(!session->selection().value().isEmpty());
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session->undo();
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QVERIFY(!session->selection().has_value());
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session->redo();
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QCOMPARE(coverage(*session, 30, 30), 255);
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// The same square traced twice fills by winding, not odd-even.
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std::vector<QPointF> twice = square(20, 20, 30);
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twice.insert(twice.end(), {QPointF(20, 20), QPointF(50, 20), QPointF(50, 50), QPointF(20, 50)});
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lasso(*session, twice);
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QCOMPARE(coverage(*session, 35, 35), 255);
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// A click in Add mode keeps what there is.
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lasso(*session, {QPointF(5, 5)}, SelectionMode::add);
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QCOMPARE(coverage(*session, 30, 30), 255);
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}
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void SelectionTests::polygonalCornersCanBeRemovedAndClosed()
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{
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const auto session = selectionSession();
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session->toggleLassoKind();
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QVERIFY(session->lassoKind() == LassoKind::polygonal);
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session->beginLasso(QPointF(10, 10), SelectionMode::replace);
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session->extendLasso(QPointF(90, 10));
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// A misplaced corner, taken back.
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session->extendLasso(QPointF(50, 50));
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session->removeLastLassoPoint();
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session->extendLasso(QPointF(90, 90));
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session->extendLasso(QPointF(10, 90));
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QCOMPARE(session->lassoDraft().value().points.size(), size_t(4));
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session->finishLasso();
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QCOMPARE(session->history.undoName(), QString("Polygonal Lasso"));
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QCOMPARE(coverage(*session, 80, 80), 255);
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QCOMPARE(coverage(*session, 5, 50), 0);
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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session->cancelLasso();
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QVERIFY(!session->lassoDraft().has_value());
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QVERIFY(!session->selection().value().isEmpty());
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// Taking back the only point ends the draft.
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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session->removeLastLassoPoint();
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QVERIFY(!session->lassoDraft().has_value());
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// A toggle ends a draft in progress.
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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session->toggleLassoKind();
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QVERIFY(session->lassoKind() == LassoKind::freehand && !session->lassoDraft().has_value());
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}
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void SelectionTests::antialiasingControlsEdgeCoverage()
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{
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const auto session = selectionSession();
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const std::vector<QPointF> triangle{QPointF(0, 0), QPointF(100, 0), QPointF(0, 100)};
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lasso(*session, triangle);
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// Pixels on x + y = 99 straddle the diagonal.
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int soft = 0, partial = 0;
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for (int x = 0; x < 100; ++x) {
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const int value = coverage(*session, x, 99 - x);
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soft += value > 0 && value < 255;
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}
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QVERIFY(soft > 0);
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QVERIFY(session->selectionAntialiased());
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session->setSelectionAntialiased(false);
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lasso(*session, triangle);
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QVERIFY(!session->selection().value().antialiased);
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for (int x = 0; x < 100; ++x) {
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const int value = coverage(*session, x, 99 - x);
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partial += value > 0 && value < 255;
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}
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QCOMPARE(partial, 0);
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// The hard edge survives Inverse, Expand and Contract.
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session->invertSelection();
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QVERIFY(!session->selection().value().antialiased);
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session->expandSelection(1);
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QVERIFY(!session->selection().value().antialiased);
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session->contractSelection(1);
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QVERIFY(!session->selection().value().antialiased);
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}
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void SelectionTests::selectAllInverseAndToolSwitchCancelsDraft()
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{
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const auto session = selectionSession();
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session->selectAll();
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QCOMPARE(session->history.undoName(), QString("Select All"));
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QCOMPARE(coverage(*session, 0, 0), 255);
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QCOMPARE(coverage(*session, 99, 99), 255);
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lasso(*session, square(0, 0, 50));
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session->invertSelection();
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QCOMPARE(session->history.undoName(), QString("Inverse"));
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QCOMPARE(coverage(*session, 25, 25), 0);
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QCOMPARE(coverage(*session, 75, 75), 255);
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session->beginLasso(QPointF(5, 5), SelectionMode::replace);
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session->selectTool(NavigationTool::brush);
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QVERIFY(!session->lassoDraft().has_value());
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// Selecting all twice records one step.
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const int count = session->history.undoCount();
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session->selectAll();
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session->selectAll();
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QCOMPARE(session->history.undoCount(), count + 1);
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}
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void SelectionTests::cursorBadgeFollowsModifiersButKeepsAnOutlinesStartingMode()
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{
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const auto session = selectionSession();
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QVERIFY(session->lassoCursorMode(false, false) == SelectionMode::replace);
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QVERIFY(session->lassoCursorMode(true, false) == SelectionMode::add);
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QVERIFY(session->lassoCursorMode(false, true) == SelectionMode::subtract);
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session->setSelectionModeChoice(SelectionMode::add);
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QVERIFY(session->lassoCursorMode(false, false) == SelectionMode::add);
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session->beginLasso(QPointF(5, 5), SelectionMode::subtract);
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QVERIFY(session->lassoCursorMode(false, false) == SelectionMode::subtract);
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QVERIFY(session->lassoCursorMode(true, false) == SelectionMode::subtract);
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QVERIFY(session->displayedSelectionMode() == SelectionMode::subtract);
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session->cancelLasso();
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session->setSelectionModeChoice(SelectionMode::replace);
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session->updateHeldSelectionKeys(true, false);
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QVERIFY(session->displayedSelectionMode() == SelectionMode::add);
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QVERIFY(session->selectionModeChoice() == SelectionMode::replace);
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QVERIFY(session->heldSelectionMode() == std::optional(SelectionMode::add));
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session->updateHeldSelectionKeys(true, true);
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QVERIFY(session->displayedSelectionMode() == SelectionMode::subtract);
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session->updateHeldSelectionKeys(false, false);
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QVERIFY(session->displayedSelectionMode() == SelectionMode::replace);
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QVERIFY(!session->heldSelectionMode().has_value());
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}
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void SelectionTests::draggingMovesTheOutlineInWholePixelsAsOneUndo()
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{
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const auto session = selectionSession();
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lasso(*session, square(10, 10, 20));
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QVERIFY(session->canMoveSelection(QPointF(20, 20)));
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QVERIFY(!session->canMoveSelection(QPointF(60, 60)));
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const int count = session->history.undoCount();
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QVERIFY(session->beginSelectionMove());
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// A second begin waits for the first to end.
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QVERIFY(!session->beginSelectionMove());
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session->moveSelection(QSizeF(10.4, 29.6));
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session->moveSelection(QSizeF(40.2, 40.4));
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session->endSelectionMove();
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QCOMPARE(session->history.undoCount(), count + 1);
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QCOMPARE(session->history.undoName(), QString("Move Selection"));
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QCOMPARE(bounds(*session), QRectF(50, 50, 20, 20));
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QCOMPARE(coverage(*session, 55, 55), 255);
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QCOMPARE(coverage(*session, 15, 15), 0);
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session->undo();
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QCOMPARE(bounds(*session), QRectF(10, 10, 20, 20));
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// Ended without a begin: nothing happens.
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session->endSelectionMove();
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session->moveSelection(QSizeF(5, 5));
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QCOMPARE(bounds(*session), QRectF(10, 10, 20, 20));
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}
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void SelectionTests::movingOffCanvasAndBackKeepsTheWholeShape()
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{
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const auto session = selectionSession();
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lasso(*session, square(10, 10, 20));
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QVERIFY(session->beginSelectionMove());
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session->moveSelection(QSizeF(-25, 0));
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session->endSelectionMove();
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QCOMPARE(coverage(*session, 0, 20), 255);
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QVERIFY(session->beginSelectionMove());
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session->moveSelection(QSizeF(25, 0));
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session->endSelectionMove();
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QCOMPARE(bounds(*session), QRectF(10, 10, 20, 20));
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}
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void SelectionTests::arrowNudgesAndMoveIsOnlyForNewModeOnARealSelection()
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{
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const auto session = selectionSession();
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// Nothing selected.
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QVERIFY(!session->beginSelectionMove());
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lasso(*session, square(10, 10, 20));
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const int count = session->history.undoCount();
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session->nudgeSelection(1, 0);
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session->nudgeSelection(0, -10);
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QCOMPARE(bounds(*session), QRectF(11, 0, 20, 20));
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QCOMPARE(session->history.undoCount(), count + 2);
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// Shift draws an added outline instead of moving.
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QVERIFY(session->selectionMode(true, false) != SelectionMode::replace);
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session->beginLasso(QPointF(5, 5), SelectionMode::add);
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QVERIFY(!session->canMoveSelection(QPointF(20, 10)));
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session->cancelLasso();
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lasso(*session, square(0, 0, 60), SelectionMode::subtract);
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QVERIFY(session->selection().value().isEmpty());
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QVERIFY(!session->beginSelectionMove());
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session->nudgeSelection(1, 0);
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QCOMPARE(session->history.undoCount(), count + 3);
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}
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void SelectionTests::expandAndContractGrowAndShrinkTheOutline()
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{
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const auto session = selectionSession();
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QVERIFY(!session->canModifySelection());
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lasso(*session, square(40, 40, 20));
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QVERIFY(session->canModifySelection());
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session->expandSelection(5);
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QCOMPARE(session->history.undoName(), QString("Expand Selection"));
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const QRectF grown = bounds(*session);
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QVERIFY(std::abs(grown.left() - 35) < 0.01 && std::abs(grown.width() - 30) < 0.01);
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QCOMPARE(coverage(*session, 37, 50), 255);
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QCOMPARE(coverage(*session, 33, 50), 0);
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// Rounded corners: the grown box's corner pixel is outside.
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QCOMPARE(coverage(*session, 35, 35), 0);
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QVERIFY(coverage(*session, 36, 36) > 100);
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session->contractSelection(8);
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QCOMPARE(session->history.undoName(), QString("Contract Selection"));
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const QRectF shrunk = bounds(*session);
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QVERIFY(std::abs(shrunk.left() - 43) < 0.01 && std::abs(shrunk.width() - 14) < 0.01);
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session->undo();
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QVERIFY(std::abs(bounds(*session).width() - 30) < 0.01);
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// Nothing, a wild amount, or a draft in progress: refused.
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const int count = session->history.undoCount();
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session->expandSelection(0);
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session->expandSelection(501);
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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QVERIFY(!session->canModifySelection());
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session->contractSelection(1);
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session->cancelLasso();
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QCOMPARE(session->history.undoCount(), count);
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}
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void SelectionTests::expandStaysOnCanvasAndContractCanEmptyTheSelection()
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{
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const auto session = selectionSession();
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session->selectAll();
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session->expandSelection(10);
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QCOMPARE(bounds(*session), QRectF(0, 0, 100, 100));
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// Pulls in from the canvas edges too.
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session->contractSelection(10);
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QCOMPARE(coverage(*session, 5, 50), 0);
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QCOMPARE(coverage(*session, 50, 50), 255);
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session->contractSelection(45);
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QVERIFY(session->selection().value().isEmpty());
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QVERIFY(!session->canModifySelection());
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}
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void SelectionTests::theClipCoversTheOutlinesRegionAndAnEmptyOneNothing()
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{
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const auto session = selectionSession();
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lasso(*session, square(10, 10, 20));
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const SelectionClip clip = session->selection().value().clip(QSizeF(100, 100));
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// One pixel around the outline, whole pixels.
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QCOMPARE(clip.rect, QRectF(9, 9, 22, 22));
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QCOMPARE(clip.coverage.value().size(), QSize(22, 22));
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QCOMPARE(int(clip.coverage.value().constScanLine(0)[0]), 0);
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QCOMPARE(int(clip.coverage.value().constScanLine(1)[1]), 255);
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QCOMPARE(int(clip.coverage.value().constScanLine(20)[20]), 255);
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QCOMPARE(int(clip.coverage.value().constScanLine(21)[21]), 0);
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// At the canvas edge the region stops with the canvas.
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lasso(*session, square(-5, -5, 20));
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const SelectionClip edge = session->selection().value().clip(QSizeF(100, 100));
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QCOMPARE(edge.rect, QRectF(0, 0, 16, 16));
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QCOMPARE(int(edge.coverage.value().constScanLine(14)[14]), 255);
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QCOMPARE(int(edge.coverage.value().constScanLine(15)[15]), 0);
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lasso(*session, square(0, 0, 60), SelectionMode::subtract);
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const SelectionClip empty = session->selection().value().clip(QSizeF(100, 100));
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QVERIFY(empty.rect.isNull() && !empty.coverage.has_value());
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// An outline without area is empty too.
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session->applySelection(rectPath(QRectF(10, 10, 0, 30)), SelectionMode::replace, "Select");
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QVERIFY(session->selection().value().isEmpty());
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QVERIFY(!session->selection().value().clip(QSizeF(100, 100)).coverage.has_value());
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QVERIFY(DocumentSelection{rectPath(QRectF(10, 10, 0, 30))}.isEmpty());
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QVERIFY(!DocumentSelection{rectPath(QRectF(10, 10, 1, 30))}.isEmpty());
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// A hard-edged clip is never soft.
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session->setSelectionAntialiased(false);
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lasso(*session, {QPointF(0, 0), QPointF(30, 0), QPointF(0, 30)});
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const SelectionClip hard = session->selection().value().clip(QSizeF(100, 100));
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// Pixel centres on the diagonal: soft would give 128.
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for (int x = 0; x < 30; ++x) {
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const int value = hard.coverage.value().constScanLine(29 - x)[x];
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QVERIFY2(value == 0 || value == 255, qPrintable(QString::number(value)));
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}
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}
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void SelectionTests::draftsRefuseWildPointsAndOtherToolsAndKeepTheirCursor()
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{
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const auto session = selectionSession();
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// The Move tool and the Wand draw no outline.
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session->selectTool(NavigationTool::move);
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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QVERIFY(!session->lassoDraft().has_value());
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session->selectTool(NavigationTool::wand);
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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QVERIFY(!session->lassoDraft().has_value());
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session->selectTool(NavigationTool::lasso);
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session->beginLasso(QPointF(1, 1), SelectionMode::replace);
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session->extendLasso(QPointF(std::nan(""), 5));
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session->extendLasso(QPointF(1.1, 1.1));
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QCOMPARE(session->lassoDraft().value().points.size(), size_t(1));
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session->moveLassoCursor(QPointF(40, 40));
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QCOMPARE(session->lassoDraft().value().cursor, std::optional(QPointF(40, 40)));
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session->moveLassoCursor(std::nullopt);
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QVERIFY(!session->lassoDraft().value().cursor.has_value());
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// Busy, an outline can neither begin nor apply.
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session->cancelLasso();
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||||
session->setIsProjectBusy(true);
|
||||
session->beginLasso(QPointF(1, 1), SelectionMode::replace);
|
||||
QVERIFY(!session->lassoDraft().has_value());
|
||||
session->applySelection(rectPath(QRectF(0, 0, 10, 10)), SelectionMode::replace, "Select");
|
||||
QVERIFY(!session->selection().has_value());
|
||||
session->setIsProjectBusy(false);
|
||||
// While the outline moves, no draft begins.
|
||||
lasso(*session, square(10, 10, 20));
|
||||
QVERIFY(session->beginSelectionMove());
|
||||
session->beginLasso(QPointF(1, 1), SelectionMode::replace);
|
||||
QVERIFY(!session->lassoDraft().has_value());
|
||||
session->endSelectionMove();
|
||||
// The project closed mid-drag: the move goes nowhere.
|
||||
QVERIFY(session->beginSelectionMove());
|
||||
session->clearProject();
|
||||
session->moveSelection(QSizeF(1, 1));
|
||||
session->endSelectionMove();
|
||||
QVERIFY(!session->document().has_value());
|
||||
}
|
||||
|
||||
QTEST_GUILESS_MAIN(SelectionTests)
|
||||
#include "SelectionTests.moc"
|
||||
Reference in new issue
Block a user