show recipes visually instead of describing them in text

src/ui/OptionButton.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QPushButton>
+#include <QSize>
+
+// A push button whose face is built of widgets rather than of a caption: an option's
+// name over the recipe line stating what it makes (REQ-UI-SELECT-OPTIONS), or a module's
+// name over what it costs (REQ-MOD-UI-DIALOG).
+//
+// It exists only to be measured correctly. QPushButton computes its size hint from its
+// text and icon and ignores a layout set on it, so a button carrying a face of widgets
+// would be sized as if it were empty and clip everything in it. This asks the layout
+// instead, and then lets the style add what the button's own frame needs.
+class OptionButton : public QPushButton
+{
+    Q_OBJECT
+
+public:
+    explicit OptionButton(QWidget* parent = nullptr);
+
+    QSize sizeHint() const override;
+    QSize minimumSizeHint() const override;
+
+private:
+    // The style's button size for the given face size, or the plain QPushButton hint
+    // when there is no face to measure.
+    QSize sizeForFace(const QSize& faceSize) const;
+};