14.4: Image › Rotate Canvas 90° Clockwise and Counterclockwise; quarter turns on whole pixels copy exactly

tests/ImageMenuTests.cpp

@@ -0,0 +1,58 @@
+#include "MenuFixtures.h"
+#include <QDialog>
+#include <QtTest>
+
+// The Image menu's canvas entries, out of CompositorMenusTests.
+class ImageMenuTests : public QObject {
+    Q_OBJECT
+private slots:
+    void imageEntriesSizeAndFlipTheCanvas();
+};
+
+void ImageMenuTests::imageEntriesSizeAndFlipTheCanvas()
+{
+    Bar bar;
+    bar.window.show();
+    const char *entries[] = {"canvasSize", "imageSize", "trim", "rotateCanvasClockwise", "rotateCanvasCounterclockwise", "flipCanvasHorizontal", "flipCanvasVertical"};
+    for (const char *name : entries)
+        QVERIFY2(!bar.action(name).isEnabled(), name);
+    bar.session().createDocument(100, 50);
+    bar.session().insert(white(), QPointF(20.5, 10.5));
+    for (const char *name : entries)
+        QVERIFY2(bar.action(name).isEnabled(), name);
+    // Busy holds them all; a drawn frame holds the flips.
+    bar.session().setIsProjectBusy(true);
+    for (const char *name : entries)
+        QVERIFY2(!bar.action(name).isEnabled(), name);
+    bar.session().setIsProjectBusy(false);
+    bar.session().selectTool(NavigationTool::crop);
+    QVERIFY(bar.action("canvasSize").isEnabled() && bar.action("trim").isEnabled() && !bar.action("flipCanvasHorizontal").isEnabled());
+    QVERIFY(!bar.action("rotateCanvasClockwise").isEnabled() && !bar.action("rotateCanvasCounterclockwise").isEnabled());
+    bar.session().selectTool(NavigationTool::move);
+    bar.action("flipCanvasHorizontal").trigger();
+    QCOMPARE(bar.session().activeLayer().value().origin(), QPointF(79, 10));
+    QCOMPARE(bar.session().history.undoName(), QString("Flip Canvas Horizontal"));
+    bar.action("flipCanvasVertical").trigger();
+    QCOMPARE(bar.session().activeLayer().value().origin(), QPointF(79, 39));
+    // A quarter turn swaps the sides and carries the layer.
+    bar.action("rotateCanvasClockwise").trigger();
+    QCOMPARE(bar.session().document().value().size(), QSizeF(50, 100));
+    QCOMPARE(bar.session().history.undoName(), QString("Rotate Canvas 90° Clockwise"));
+    bar.action("rotateCanvasCounterclockwise").trigger();
+    QCOMPARE(bar.session().document().value().size(), QSizeF(100, 50));
+    QCOMPARE(bar.session().activeLayer().value().origin(), QPointF(79, 39));
+    // The size entries open their sheets over the window.
+    for (const auto &[name, title] : {std::pair("canvasSize", "Canvas Size"), std::pair("imageSize", "Image Size"), std::pair("trim", "Trim")}) {
+        bar.action(name).trigger();
+        auto *sheet = bar.window.findChild<QDialog *>();
+        QVERIFY(sheet && sheet->isVisible());
+        QCOMPARE(sheet->windowTitle(), QString::fromLatin1(title));
+        QVERIFY(!bar.action(name).isEnabled());
+        QTest::keyClick(sheet, Qt::Key_Escape);
+        QTRY_VERIFY(!bar.session().isProjectBusy());
+        QTRY_VERIFY(!bar.window.findChild<QDialog *>());
+    }
+}
+
+QTEST_MAIN(ImageMenuTests)
+#include "ImageMenuTests.moc"