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>

tests/CropControlsTests.cpp

@@ -0,0 +1,111 @@
+#include "Document/EditorSession.h"
+#include "UI/CropControls.h"
+#include <QComboBox>
+#include <QPushButton>
+#include <QtTest>
+
+// Swift's CropControls: ratio, size, Cancel and Apply Crop.
+class CropControlsTests : public QObject {
+    Q_OBJECT
+private slots:
+    void theBarShowsTheFrameAndItsRatio();
+    void itsButtonsCancelAndCrop();
+    void itRestsWhileBusyOrEmpty();
+};
+
+namespace {
+template <typename Widget> Widget &control(const QWidget &bar, const char *name)
+{
+    Widget *found = bar.findChild<Widget *>(QString::fromLatin1(name));
+    if (!found)
+        throw std::runtime_error(std::string("no control named ") + name);
+    return *found;
+}
+}
+
+void CropControlsTests::theBarShowsTheFrameAndItsRatio()
+{
+    EditorSession session;
+    session.createDocument(1200, 800);
+    session.selectTool(NavigationTool::crop);
+    CropControls bar(session);
+    bar.show();
+    QCOMPARE(bar.title->text(), QString("Crop"));
+    QComboBox &ratio = control<QComboBox>(bar, "cropRatio");
+    QStringList choices;
+    for (int index = 0; index < ratio.count(); ++index)
+        choices << ratio.itemText(index);
+    QCOMPARE(choices, (QStringList{"Free", "Original", "1:1", "4:3", "16:9"}));
+    QCOMPARE(ratio.currentText(), QString("Free"));
+    // Labelled as Swift's picker, the two 170 points wide.
+    const QList<QLabel *> labels = bar.findChildren<QLabel *>();
+    const auto named = std::find_if(labels.begin(), labels.end(), [](const QLabel *label) { return label->text() == "Ratio"; });
+    QVERIFY(named != labels.end());
+    QCOMPARE((*named)->buddy(), &ratio);
+    QCOMPARE(ratio.parentWidget()->width(), 170);
+    QCOMPARE((*named)->x(), 0);
+    QCOMPARE((*named)->width(), (*named)->sizeHint().width());
+    QCOMPARE(ratio.geometry().right(), 169);
+    QCOMPARE(bar.row->spacing(), 14);
+    QLabel &size = control<QLabel>(bar, "cropSize");
+    QCOMPARE(size.text(), QString("1,200 × 800 px"));
+    QVERIFY(size.isVisible());
+    // A new ratio takes the frame about its middle, once.
+    emit ratio.activated(2);
+    QCOMPARE(session.cropRatioChoice(), QString("1:1"));
+    QCOMPARE(session.cropRect(), std::optional(QRectF(0, -200, 1200, 1200)));
+    QCOMPARE(size.text(), QString("1,200 × 1,200 px"));
+    session.setCropRect(QRectF(0, 0, 1200, 600));
+    emit ratio.activated(2);
+    QCOMPARE(session.cropRect(), std::optional(QRectF(0, 0, 1200, 600)));
+    // The session's choice shows; whole pixels, truncated.
+    session.setCropRatioChoice("16:9");
+    QCOMPARE(ratio.currentText(), QString("16:9"));
+    session.setCropRect(QRectF(0.4, 0, 99.9, 50.2));
+    QCOMPARE(size.text(), QString("99 × 50 px"));
+    session.cancelCrop();
+    QVERIFY(!size.isVisible());
+}
+
+void CropControlsTests::itsButtonsCancelAndCrop()
+{
+    EditorSession session;
+    session.createDocument(100, 100);
+    session.selectTool(NavigationTool::crop);
+    CropControls bar(session);
+    bar.show();
+    QPushButton &cancel = control<QPushButton>(bar, "cropCancel");
+    QPushButton &apply = control<QPushButton>(bar, "cropApply");
+    QCOMPARE(apply.text(), QString("Apply Crop"));
+    QVERIFY(cancel.x() < apply.x());
+    session.setCropRect(QRectF(10, 10, 40, 30));
+    QTest::mouseClick(&cancel, Qt::LeftButton);
+    QCOMPARE(session.cropRect(), std::nullopt);
+    // Without a frame drawn, neither has work to do.
+    QVERIFY(!cancel.isEnabled() && !apply.isEnabled());
+    session.setCropRect(QRectF(10, 10, 40, 30));
+    QVERIFY(cancel.isEnabled() && apply.isEnabled());
+    QTest::mouseClick(&apply, Qt::LeftButton);
+    QTRY_COMPARE(session.document().value().width, 40);
+    QCOMPARE(session.document().value().height, 30);
+    QVERIFY(!apply.isEnabled());
+}
+
+void CropControlsTests::itRestsWhileBusyOrEmpty()
+{
+    EditorSession session;
+    CropControls bar(session);
+    QVERIFY(!bar.isEnabled());
+    session.createDocument(100, 100);
+    QVERIFY(bar.isEnabled());
+    // Busy past its delay, the bar rests with the rest.
+    session.setIsProjectBusy(true);
+    QVERIFY(bar.isEnabled());
+    QTRY_VERIFY(session.showsBusy());
+    QVERIFY(!bar.isEnabled());
+    session.setIsProjectBusy(false);
+    QVERIFY(bar.isEnabled());
+}
+
+QTEST_MAIN(CropControlsTests)
+#include "CropControlsTests.moc"