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/TypeControlsFixtures.h

@@ -0,0 +1,56 @@
+#pragma once
+#include "SessionFixtures.h"
+#include "UI/TypeControls.h"
+#include <QComboBox>
+#include <QPushButton>
+#include <QToolButton>
+#include <QtTest>
+
+// Shared by the Type bar's tests: the bar, a document.
+namespace {
+template <typename Widget> Widget &find(QWidget &parent, const char *name)
+{
+    auto *found = parent.findChild<Widget *>(QString::fromLatin1(name));
+    if (!found)
+        throw std::runtime_error(name);
+    return *found;
+}
+
+// A new text layer saying `content`, left active.
+QUuid addText(EditorSession &session, const QString &content)
+{
+    session.selectTool(NavigationTool::type);
+    session.beginText(QPointF(20, 30), true);
+    TextDraft draft = session.textDraft().value();
+    draft.style.content = content;
+    if (!session.applyText(draft))
+        throw std::runtime_error("the text was refused");
+    return session.activeLayerID().value();
+}
+
+// The bar shown in an active window, over a document.
+struct Bar {
+    EditorSession session;
+    TypeControls bar;
+    Bar() : bar((session.createDocument(400, 300, true), session.selectTool(NavigationTool::type), session))
+    {
+        bar.show();
+        if (!QTest::qWaitForWindowActive(&bar))
+            throw std::runtime_error("the bar never became active");
+    }
+    TextStyleField &field(const char *name) { return find<TextStyleField>(bar, name); }
+    QToolButton &align(const char *name) { return find<QToolButton>(bar, name); }
+    QPushButton &button(const char *name) { return find<QPushButton>(bar, name); }
+    // Replaces a field's text key by key, as typed.
+    void type(TextStyleField &field, const QString &text)
+    {
+        field.setFocus();
+        if (!QTest::qWaitFor([&] { return field.hasFocus(); }))
+            throw std::runtime_error("the field never took the focus");
+        field.selectAll();
+        QTest::keyClicks(&field, text);
+    }
+    void restyle(const std::function<void(LayerTextStyle &)> &change) { session.changeTextStyle(change); }
+};
+
+}