From dea11f34bfab5bfd5f66dec9f2fa0239abf44d89 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 19 Sep 2018 23:43:26 +0800
Subject: Improve linear layout. Add debug border visualization.

---
 CruUI/ui/layout_base.h | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

(limited to 'CruUI/ui/layout_base.h')

diff --git a/CruUI/ui/layout_base.h b/CruUI/ui/layout_base.h
index 08f36769..25a6774c 100644
--- a/CruUI/ui/layout_base.h
+++ b/CruUI/ui/layout_base.h
@@ -22,13 +22,30 @@ namespace cru
 
         struct MeasureLength final
         {
-            explicit MeasureLength(const float length = 0.0, const MeasureMode mode = MeasureMode::Content)
+            constexpr static MeasureLength Exactly(const float length)
+            {
+                return MeasureLength(MeasureMode::Exactly, length);
+            }
+
+            constexpr static MeasureLength Content()
+            {
+                return MeasureLength(MeasureMode::Content, 0);
+            }
+
+            constexpr static MeasureLength Stretch()
+            {
+                return MeasureLength(MeasureMode::Stretch, 0);
+            }
+
+            constexpr MeasureLength() = default;
+
+            constexpr explicit MeasureLength(const MeasureMode mode, const float length)
                 : length(length), mode(mode)
             {
 
             }
 
-            bool Validate() const
+            constexpr bool Validate() const
             {
                 if (mode == MeasureMode::Exactly && length < 0.0)
                 {
@@ -40,8 +57,8 @@ namespace cru
                 return true;
             }
 
-            float length;
-            MeasureMode mode;
+            float length = 0.0;
+            MeasureMode mode = MeasureMode::Content;
         };
 
         struct BasicLayoutParams
-- 
cgit v1.2.3