From 3a5e29835fb7cb660279aee0ac48be0bf4c11e2b Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Wed, 13 Oct 2021 23:16:25 +0300
Subject: [PATCH] Implement bevels in default_element_factory frame

---
 libs/ui/source/default_element_factory.cpp | 43 ++++++++++++++++++++--
 1 file changed, 40 insertions(+), 3 deletions(-)

diff --git a/libs/ui/source/default_element_factory.cpp b/libs/ui/source/default_element_factory.cpp
index 77013f6e..733b43e2 100644
--- a/libs/ui/source/default_element_factory.cpp
+++ b/libs/ui/source/default_element_factory.cpp
@@ -113,7 +113,7 @@ namespace psemek::ui
 				auto st = merged_own_style();
 				if (!st) return;
 				for (auto c : children())
-					if (c) c->reshape(geom::shrink(bbox, 1.f * (*st->border_width + *st->outer_margin)));
+					if (c) c->reshape(geom::shrink(bbox, 1.f * (*st->border_width + *st->bevel_width + *st->outer_margin)));
 			}
 
 			geom::box<float, 2> size_constraints() const override
@@ -127,7 +127,7 @@ namespace psemek::ui
 				auto st = merged_own_style();
 				if (st)
 				{
-					float extra = 2.f * (*st->border_width + *st->outer_margin);
+					float extra = 2.f * (*st->border_width + *st->bevel_width + *st->outer_margin);
 					r[0] += extra;
 					r[1] += extra;
 				}
@@ -159,7 +159,44 @@ namespace psemek::ui
 
 				if (st->border_width > 0)
 					p.draw_rect(shape_.box, *st->border_color);
-				p.draw_rect(geom::shrink(shape_.box, 1.f * (*st->border_width)), *st->bg_color);
+
+				if (st->bevel_width > 0)
+				{
+					geom::point<float, 2> corners[4];
+					geom::point<float, 2> corners_in[4];
+
+					auto box = geom::shrink<float>(shape_.box, *st->border_width);
+
+					corners[0] = box.corner(0, 0);
+					corners[1] = box.corner(1, 0);
+					corners[2] = box.corner(1, 1);
+					corners[3] = box.corner(0, 1);
+
+					auto box_in = geom::shrink<float>(box, *st->bevel_width);
+
+					corners_in[0] = box_in.corner(0, 0);
+					corners_in[1] = box_in.corner(1, 0);
+					corners_in[2] = box_in.corner(1, 1);
+					corners_in[3] = box_in.corner(0, 1);
+
+					auto c1 = *st->bevel_light_color;
+					auto c2 = *st->bevel_dark_color;
+
+					if (*st->bevel_type == bevel_type::down)
+						std::swap(c1, c2);
+
+					p.draw_triangle({corners[0], corners_in[0], corners[1]}, c1);
+					p.draw_triangle({corners[1], corners_in[0], corners_in[1]}, c1);
+					p.draw_triangle({corners[1], corners_in[1], corners[2]}, c1);
+					p.draw_triangle({corners[2], corners_in[1], corners_in[2]}, c1);
+
+					p.draw_triangle({corners[2], corners_in[2], corners[3]}, c2);
+					p.draw_triangle({corners[3], corners_in[2], corners_in[3]}, c2);
+					p.draw_triangle({corners[3], corners_in[3], corners[0]}, c2);
+					p.draw_triangle({corners[0], corners_in[3], corners_in[0]}, c2);
+				}
+
+				p.draw_rect(geom::shrink(shape_.box, 1.f * (*st->border_width + *st->bevel_width)), *st->bg_color);
 			}
 
 		private: