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 "UI/LayerAppearanceControls.h"
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#include "UI/BlendModePicker.h"
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#include <QtTest>
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// The opacity slider and field, one undo step a drag.
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namespace {
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ImportedImage white()
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{
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QImage image(2, 2, QImage::Format_RGBA8888_Premultiplied);
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image.fill(Qt::white);
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return ImportedImage(image, image, "White");
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}
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struct Controls {
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EditorSession session;
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LayerAppearanceControls widget{session};
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QSlider &slider = *widget.findChild<QSlider *>("opacitySlider");
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QLineEdit &field = *widget.findChild<QLineEdit *>("opacityPercent");
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double opacity() { return session.activeLayer().value().opacity; }
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};
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}
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class LayerAppearanceControlsTests : public QObject {
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Q_OBJECT
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private slots:
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void theControlsFollowTheActiveLayerAndItsGate();
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void aSliderDragIsOneUndoStep();
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void theFieldAppliesOnReturnEscapeAndLeavingAndStepsWithArrows();
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void aFieldLeftBehindByAnotherLayerAppliesNothing();
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};
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void LayerAppearanceControlsTests::theControlsFollowTheActiveLayerAndItsGate()
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{
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Controls controls;
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QVERIFY(!controls.widget.isEnabled());
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QCOMPARE(controls.field.text(), QString("100"));
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controls.session.createDocument(4, 4);
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controls.session.insert(white());
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QVERIFY(controls.widget.isEnabled());
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controls.session.setLayerOpacity(0.25);
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QCOMPARE(controls.slider.value(), 250);
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QCOMPARE(controls.field.text(), QString("25"));
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controls.session.insert(white());
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QCOMPARE(controls.slider.value(), 1000);
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QCOMPARE(controls.field.text(), QString("100"));
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controls.session.selectLayer(controls.session.document().value().layers.front().id);
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QCOMPARE(controls.field.text(), QString("25"));
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// Showing a finer opacity must not write the slider's back.
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controls.session.setLayerOpacity(0.12345);
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QCOMPARE(controls.slider.value(), 123);
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QCOMPARE(controls.session.activeLayer().value().opacity, 0.12345);
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QVERIFY(controls.widget.findChild<BlendModePicker *>() != nullptr);
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controls.session.selectLayers({controls.session.document().value().layers.front().id, controls.session.document().value().layers.back().id}, std::nullopt);
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QVERIFY(!controls.widget.isEnabled());
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}
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void LayerAppearanceControlsTests::aSliderDragIsOneUndoStep()
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{
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Controls controls;
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controls.session.createDocument(4, 4);
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controls.session.insert(white());
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const int steps = controls.session.history.undoCount();
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controls.slider.setSliderDown(true);
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emit controls.slider.sliderPressed();
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controls.slider.setValue(600);
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controls.slider.setValue(400);
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QCOMPARE(controls.opacity(), 0.4);
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QVERIFY(!controls.session.canUndo());
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controls.slider.setSliderDown(false);
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emit controls.slider.sliderReleased();
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QCOMPARE(controls.session.history.undoCount(), steps + 1);
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QCOMPARE(controls.session.history.undoName(), QString("Layer Opacity"));
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controls.session.undo();
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QCOMPARE(controls.opacity(), 1.0);
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QCOMPARE(controls.slider.value(), 1000);
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// The keyboard moves the slider too, a step each.
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controls.slider.setValue(900);
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QCOMPARE(controls.opacity(), 0.9);
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QCOMPARE(controls.session.history.undoCount(), steps + 1);
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}
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void LayerAppearanceControlsTests::theFieldAppliesOnReturnEscapeAndLeavingAndStepsWithArrows()
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{
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Controls controls;
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controls.session.createDocument(4, 4);
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controls.session.insert(white());
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controls.widget.show();
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QVERIFY(QTest::qWaitForWindowActive(&controls.widget));
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controls.field.setFocus();
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "40");
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QTest::keyClick(&controls.field, Qt::Key_Return);
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QCOMPARE(controls.opacity(), 0.4);
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QVERIFY(!controls.field.hasFocus());
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QCOMPARE(controls.session.canvasFocusRequest(), 1);
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controls.field.setFocus();
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "abc");
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QTest::keyClick(&controls.field, Qt::Key_Escape);
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QCOMPARE(controls.opacity(), 0.4);
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QCOMPARE(controls.field.text(), QString("40"));
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QCOMPARE(controls.session.canvasFocusRequest(), 2);
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// Leaving applies without asking for the canvas; past 100 clamps.
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controls.field.setFocus();
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "250");
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controls.field.clearFocus();
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QCOMPARE(controls.opacity(), 1.0);
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QCOMPARE(controls.field.text(), QString("100"));
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QCOMPARE(controls.session.canvasFocusRequest(), 2);
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// Arrows step one percent, ten with Shift, within the range.
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controls.field.setFocus();
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QTest::keyClick(&controls.field, Qt::Key_Down);
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QCOMPARE(controls.opacity(), 0.99);
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QTest::keyClick(&controls.field, Qt::Key_Down, Qt::ShiftModifier);
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QCOMPARE(controls.opacity(), 0.89);
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QCOMPARE(controls.field.text(), QString("89"));
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QTest::keyClick(&controls.field, Qt::Key_Up, Qt::ShiftModifier);
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QTest::keyClick(&controls.field, Qt::Key_Up, Qt::ShiftModifier);
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QCOMPARE(controls.opacity(), 1.0);
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// A finer value is kept once, shown rounded.
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const int steps = controls.session.history.undoCount();
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "12.345");
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QTest::keyClick(&controls.field, Qt::Key_Return);
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QCOMPARE(controls.opacity(), 0.12345);
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QCOMPARE(controls.field.text(), QString("12"));
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QCOMPARE(controls.session.history.undoCount(), steps + 1);
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controls.field.setFocus();
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QTest::keyClick(&controls.field, Qt::Key_Up);
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QCOMPARE(controls.opacity(), 0.13);
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "100");
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QTest::keyClick(&controls.field, Qt::Key_Return);
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controls.field.setFocus();
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// Typing goes on while the session moves; the slider follows.
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "5");
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controls.session.setLayerOpacity(0.3);
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QCOMPARE(controls.field.text(), QString("5"));
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QCOMPARE(controls.slider.value(), 300);
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QTest::keyClick(&controls.field, Qt::Key_Enter);
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QCOMPARE(controls.opacity(), 0.05);
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}
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void LayerAppearanceControlsTests::aFieldLeftBehindByAnotherLayerAppliesNothing()
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{
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Controls controls;
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controls.session.createDocument(4, 4);
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controls.session.insert(white());
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const QUuid first = controls.session.activeLayerID().value();
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controls.session.insert(white());
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controls.widget.show();
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QVERIFY(QTest::qWaitForWindowActive(&controls.widget));
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controls.field.setFocus();
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controls.field.selectAll();
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QTest::keyClicks(&controls.field, "20");
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// Another layer active: the typed value belongs to no one.
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controls.session.selectLayer(first);
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QVERIFY(!controls.field.hasFocus());
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QCOMPARE(controls.field.text(), QString("100"));
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for (const ImageLayer &layer : controls.session.document().value().layers)
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QCOMPARE(layer.opacity, 1.0);
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// The controls end an open drag when they go.
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controls.slider.setSliderDown(true);
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emit controls.slider.sliderPressed();
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controls.slider.setValue(500);
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QVERIFY(!controls.session.canUndo());
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auto *later = new LayerAppearanceControls(controls.session);
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delete later;
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QVERIFY(controls.session.canUndo());
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}
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QTEST_MAIN(LayerAppearanceControlsTests)
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#include "LayerAppearanceControlsTests.moc"
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