From b3d770f0191b9bf53bf04e922f52ceb307d10624 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Thu, 17 Mar 2022 15:24:06 +0300
Subject: [PATCH] Make ui::frame a non-abstract class

---
 libs/ui/include/psemek/ui/frame.hpp |  6 +++++
 libs/ui/source/frame.cpp            | 36 +++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/libs/ui/include/psemek/ui/frame.hpp b/libs/ui/include/psemek/ui/frame.hpp
index 23440467..af8b0a2a 100644
--- a/libs/ui/include/psemek/ui/frame.hpp
+++ b/libs/ui/include/psemek/ui/frame.hpp
@@ -15,6 +15,12 @@ namespace psemek::ui
 		virtual std::optional<geom::vector<float, 2>> min_size() const { return min_size_; }
 		virtual std::optional<geom::vector<float, 2>> max_size() const { return max_size_; }
 
+		struct shape const & shape() const override;
+		void reshape(geom::box<float, 2> const & box) override;
+		geom::box<float, 2> size_constraints() const override;
+
+		void draw(painter &) const override {}
+
 	private:
 		std::optional<geom::vector<float, 2>> min_size_;
 		std::optional<geom::vector<float, 2>> max_size_;
diff --git a/libs/ui/source/frame.cpp b/libs/ui/source/frame.cpp
index 4bdd081b..da7c456d 100644
--- a/libs/ui/source/frame.cpp
+++ b/libs/ui/source/frame.cpp
@@ -1,4 +1,5 @@
 #include <psemek/ui/frame.hpp>
+#include <psemek/ui/null_shape.hpp>
 
 namespace psemek::ui
 {
@@ -22,4 +23,39 @@ namespace psemek::ui
 		post_reshape();
 	}
 
+	shape const & frame::shape() const
+	{
+		static null_shape const fallback;
+		if (child_)
+			return child_->shape();
+		return fallback;
+	}
+
+	void frame::reshape(geom::box<float, 2> const & box)
+	{
+		if (child_)
+			child_->reshape(box);
+	}
+
+	geom::box<float, 2> frame::size_constraints() const
+	{
+		auto sc = element::size_constraints();
+		if (child_)
+			sc = child_->size_constraints();
+
+		if (min_size_)
+		{
+			sc[0].min = std::max(sc[0].min, (*min_size_)[0]);
+			sc[1].min = std::max(sc[1].min, (*min_size_)[1]);
+		}
+
+		if (max_size_)
+		{
+			sc[0].max = std::min(sc[0].max, (*max_size_)[0]);
+			sc[1].max = std::min(sc[1].max, (*max_size_)[1]);
+		}
+
+		return sc;
+	}
+
 }