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 "CanvasFixtures.h"
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// The Move tool's pointer: move, duplicate, the handles, the grip.
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namespace {
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QImage image(const QCursor &cursor)
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{
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return cursor.pixmap().toImage();
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}
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// A hover with these modifiers, no button held.
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void hover(QWidget &widget, QPointF at, Qt::KeyboardModifiers modifiers = Qt::NoModifier)
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{
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QMouseEvent event(QEvent::MouseMove, at, at, widget.mapToGlobal(at.toPoint()), Qt::NoButton, Qt::NoButton, modifiers);
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QApplication::sendEvent(&widget, &event);
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}
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struct Canvas : Shown {
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Canvas() : Shown(QSize(400, 300), QSize(400, 300))
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{
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settle();
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session.zoom(1);
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session.insert(filled(100, 100, qRgba(255, 0, 0, 255), "Red"));
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session.selectTool(NavigationTool::move);
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canvas->synchronizeDisplay();
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}
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bool shows(const QCursor &cursor) const { return image(canvas->cursor()) == image(cursor); }
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};
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}
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class CursorTests : public QObject {
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Q_OBJECT
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private slots:
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void duplicateAndResizeCursors();
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void hiddenTransformControlsLeaveOnlyMoving();
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void aDragKeepsItsCursorAndBusySpaceAndOtherToolsTheirs();
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void ctrlOverTheSelectionShowsTheScissors();
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};
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void CursorTests::duplicateAndResizeCursors()
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{
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Canvas shown;
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CanvasView &canvas = *shown.canvas;
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const double ratio = canvas.devicePixelRatio();
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hover(canvas, QPointF(200, 150));
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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hover(canvas, QPointF(200, 150), Qt::AltModifier);
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QVERIFY(shown.shows(CanvasView::duplicateCursor(ratio)));
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// A press anywhere drags the active layer: Alt anywhere duplicates.
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hover(canvas, QPointF(20, 20), Qt::AltModifier);
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QVERIFY(shown.shows(CanvasView::duplicateCursor(ratio)));
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hover(canvas, QPointF(20, 20));
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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// Alt from the keyboard counts too.
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QTest::keyPress(&canvas, Qt::Key_Alt, Qt::AltModifier);
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QVERIFY(shown.shows(CanvasView::duplicateCursor(ratio)));
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QTest::keyRelease(&canvas, Qt::Key_Alt);
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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// Corners and edges resize with the box; the grip rotates.
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hover(canvas, QPointF(150, 100));
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QCOMPARE(canvas.cursor().shape(), Qt::SizeFDiagCursor);
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hover(canvas, QPointF(250, 100));
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QCOMPARE(canvas.cursor().shape(), Qt::SizeBDiagCursor);
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hover(canvas, QPointF(250, 150));
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QCOMPARE(canvas.cursor().shape(), Qt::SizeHorCursor);
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hover(canvas, QPointF(200, 200));
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QCOMPARE(canvas.cursor().shape(), Qt::SizeVerCursor);
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hover(canvas, QPointF(200, 72));
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QVERIFY(shown.shows(CanvasView::rotationCursor(ratio)));
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// The move pointer carries a badge the plain arrow lacks.
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QVERIFY(image(CanvasView::moveCursor(1)).pixelColor(19, 21).lightness() < 128);
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QVERIFY(image(CanvasView::rotationCursor(1)).pixelColor(12, 5).lightness() < 128);
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QVERIFY(image(CanvasView::rotationCursor(1)).pixelColor(12, 12).alpha() == 0);
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// A hidden active layer moves nothing; Ctrl picks red.
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QVERIFY(canvas.hasMouseTracking());
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const QUuid red = shown.session.activeLayerID().value();
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shown.session.insert(filled(10, 10, qRgba(0, 0, 255, 255), "Blue"), QPointF(50, 250));
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const QUuid blue = shown.session.activeLayerID().value();
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shown.session.toggleLayerVisibility(blue);
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canvas.synchronizeDisplay();
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hover(canvas, QPointF(200, 150));
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QCOMPARE(canvas.cursor().shape(), Qt::ArrowCursor);
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hover(canvas, QPointF(200, 150), Qt::ControlModifier);
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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hover(canvas, QPointF(200, 150));
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QCOMPARE(canvas.cursor().shape(), Qt::ArrowCursor);
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QTest::keyPress(&canvas, Qt::Key_Control, Qt::ControlModifier);
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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QTest::keyRelease(&canvas, Qt::Key_Control);
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QCOMPARE(canvas.cursor().shape(), Qt::ArrowCursor);
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// Released while hidden, Ctrl is read again on show.
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QTest::keyPress(shown.window.windowHandle(), Qt::Key_Control, Qt::ControlModifier);
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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canvas.hide();
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QTest::keyRelease(shown.window.windowHandle(), Qt::Key_Control);
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canvas.show();
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QCOMPARE(canvas.cursor().shape(), Qt::ArrowCursor);
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// With no layer at all, the plain arrow.
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shown.session.selectLayers({red, blue}, red);
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shown.session.deleteSelectedLayers();
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QVERIFY(shown.session.document().value().layers.empty());
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hover(canvas, QPointF(200, 150), Qt::ControlModifier);
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QCOMPARE(canvas.cursor().shape(), Qt::ArrowCursor);
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}
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void CursorTests::hiddenTransformControlsLeaveOnlyMoving()
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{
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Canvas shown;
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CanvasView &canvas = *shown.canvas;
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EditorSession &session = shown.session;
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const double ratio = canvas.devicePixelRatio();
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QVERIFY(session.showsTransformControls());
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hover(canvas, QPointF(150, 100));
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QCOMPARE(canvas.cursor().shape(), Qt::SizeFDiagCursor);
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session.setShowsTransformControls(false);
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canvas.synchronizeDisplay();
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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hover(canvas, QPointF(150, 100), Qt::ControlModifier);
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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hover(canvas, QPointF(150, 100));
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// A pending Ctrl+T transform shows its box again.
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session.beginTransform(true);
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canvas.synchronizeDisplay();
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QCOMPARE(canvas.cursor().shape(), Qt::SizeFDiagCursor);
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session.cancelTransform();
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canvas.synchronizeDisplay();
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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}
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void CursorTests::aDragKeepsItsCursorAndBusySpaceAndOtherToolsTheirs()
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{
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Canvas shown;
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CanvasView &canvas = *shown.canvas;
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EditorSession &session = shown.session;
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const double ratio = canvas.devicePixelRatio();
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// Over a handle mid-drag, the drag's own cursor stays.
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QTest::mousePress(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(20, 20));
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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drag(canvas, QPointF(150, 100));
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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QTest::mouseRelease(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(150, 100));
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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QTest::mousePress(&canvas, Qt::LeftButton, Qt::AltModifier, QPoint(20, 20));
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QVERIFY(shown.shows(CanvasView::duplicateCursor(ratio)));
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QTest::mouseRelease(&canvas, Qt::LeftButton, Qt::AltModifier, QPoint(20, 20));
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hover(canvas, QPointF(20, 20));
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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// The grip's drag keeps the rotation pointer off the grip.
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session.undo();
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canvas.synchronizeDisplay();
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QTest::mousePress(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(200, 72));
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QVERIFY(shown.shows(CanvasView::rotationCursor(ratio)));
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drag(canvas, QPointF(300, 150));
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QVERIFY(shown.shows(CanvasView::rotationCursor(ratio)));
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QTest::mouseRelease(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(300, 150));
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QVERIFY(!shown.shows(CanvasView::rotationCursor(ratio)));
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session.undo();
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// Busy shows the arrow, edit or not; Space the hand.
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session.beginTransform();
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canvas.synchronizeDisplay();
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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session.setIsProjectBusy(true);
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canvas.synchronizeDisplay();
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QCOMPARE(canvas.cursor().shape(), Qt::ArrowCursor);
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session.setIsProjectBusy(false);
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session.cancelTransform();
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canvas.synchronizeDisplay();
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QTRY_VERIFY(canvas.hasFocus());
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QTest::keyPress(&canvas, Qt::Key_Space);
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QCOMPARE(canvas.cursor().shape(), Qt::OpenHandCursor);
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QTest::keyRelease(&canvas, Qt::Key_Space);
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QVERIFY(shown.shows(CanvasView::moveCursor(ratio)));
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session.selectTool(NavigationTool::brush);
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canvas.synchronizeDisplay();
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QCOMPARE(canvas.cursor().shape(), Qt::CrossCursor);
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// Space mid-resize leaves the drag its cursor.
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session.selectTool(NavigationTool::move);
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canvas.synchronizeDisplay();
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QTest::mousePress(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(250, 200));
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QCOMPARE(canvas.cursor().shape(), Qt::SizeFDiagCursor);
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QTest::keyPress(&canvas, Qt::Key_Space);
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QCOMPARE(canvas.cursor().shape(), Qt::SizeFDiagCursor);
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QTest::keyRelease(&canvas, Qt::Key_Space);
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QTest::mouseRelease(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(250, 200));
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}
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void CursorTests::ctrlOverTheSelectionShowsTheScissors()
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{
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Canvas shown;
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QWidget &canvas = *shown.canvas;
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const double ratio = canvas.devicePixelRatioF();
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shown.session.selectTool(NavigationTool::marquee);
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shown.session.selectAll();
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shown.canvas->synchronizeDisplay();
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hover(canvas, QPointF(200, 150), Qt::ControlModifier);
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QVERIFY(shown.shows(CanvasView::movePixelsCursor(ratio)));
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hover(canvas, QPointF(200, 150), Qt::ControlModifier | Qt::AltModifier);
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QVERIFY(shown.shows(CanvasView::duplicateCursor(ratio)));
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hover(canvas, QPointF(200, 150));
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QVERIFY(shown.shows(CanvasView::moveSelectionCursor(ratio)));
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// Scissors hang below the arrow, unlike the move badge.
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QVERIFY(image(CanvasView::movePixelsCursor(1)) != image(CanvasView::moveCursor(1)));
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const QColor scissors = image(CanvasView::movePixelsCursor(1)).pixelColor(13, 23);
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QVERIFY(scissors.alpha() > 128 && scissors.lightness() < 128);
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// Mid-drag the scissors stay, Ctrl held or not.
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QTest::mousePress(&canvas, Qt::LeftButton, Qt::ControlModifier, QPoint(200, 150));
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QVERIFY(shown.session.pixelMove() && !shown.session.pixelMove()->duplicate);
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QMouseEvent drag(QEvent::MouseMove, QPointF(220, 150), QPointF(220, 150), canvas.mapToGlobal(QPoint(220, 150)), Qt::NoButton, Qt::LeftButton, Qt::NoModifier);
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QApplication::sendEvent(&canvas, &drag);
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QVERIFY(shown.shows(CanvasView::movePixelsCursor(ratio)));
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// Space mid-drag keeps the drag's own cursor.
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QTest::keyPress(&canvas, Qt::Key_Space);
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QVERIFY(shown.shows(CanvasView::movePixelsCursor(ratio)));
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QTest::keyRelease(&canvas, Qt::Key_Space);
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QTest::mouseRelease(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(220, 150));
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QTRY_VERIFY(!shown.session.pixelMove());
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QCOMPARE(shown.session.history.undoName(), QString("Move Pixels"));
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// Released, the plain pointer moves the outline again.
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hover(canvas, QPointF(220, 150));
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QVERIFY(shown.shows(CanvasView::moveSelectionCursor(ratio)));
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// A copy drag keeps its cursor under Space too.
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QTest::mousePress(&canvas, Qt::LeftButton, Qt::ControlModifier | Qt::AltModifier, QPoint(220, 150));
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QVERIFY(shown.session.pixelMove() && shown.session.pixelMove()->duplicate);
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QTest::keyPress(&canvas, Qt::Key_Space);
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QVERIFY(shown.shows(CanvasView::duplicateCursor(ratio)));
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QTest::keyRelease(&canvas, Qt::Key_Space);
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QTest::mouseRelease(&canvas, Qt::LeftButton, Qt::NoModifier, QPoint(220, 150));
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QTRY_VERIFY(!shown.session.pixelMove());
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}
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QTEST_MAIN(CursorTests)
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#include "CursorTests.moc"
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