move blueprints out of the sidebar into Ctrl+C / Ctrl+V dialogs

src/ui/IconCaption.h

@@ -3,6 +3,7 @@
 #include <QColor>
 #include <QFont>
 #include <QPixmap>
+#include <QSize>
 #include <QString>
 
 // Renders `text` followed by `icon` to its right, vertically centered, onto a
@@ -15,6 +16,11 @@
 QPixmap renderCaptionWithIcon(const QString& text, const QPixmap& icon,
                               const QFont& font, const QColor& textColor);
 
+// A pixmap's size in device-independent pixels. The pixmaps composed by
+// renderCaptionWithIcon and its callers are rasterized at the device pixel ratio, so
+// their raw size is not the size to lay them out at.
+QSize getLogicalSize(const QPixmap& pixmap);
+
 // Item id of the building blocks resource, whose icon stands in for the "Blocks"
 // word wherever a cost or stock is captioned (REQ-UI-BLOCKS-ICON, REQ-UI-BUILD-COST,
 // REQ-UI-EXPAND-BUTTON). It lives next to the caption helper because every caller of