...

4 files changed, 40 insertions, 4 deletions

diff --git a/include/cru/ui/render/FlexLayoutRenderObject.hpp b/include/cru/ui/render/FlexLayoutRenderObject.hpp
index ee29d1e4..a8154487 100644
--- a/include/cru/ui/render/FlexLayoutRenderObject.hpp
+++ b/include/cru/ui/render/FlexLayoutRenderObject.hpp
@@ -1,6 +1,8 @@
 #pragma once
 #include "LayoutRenderObject.hpp"
 
+#include <string_view>
+
 namespace cru::ui::render {
 // Measure Logic (v0.1):
 // Cross axis measure logic is the same as stack layout.
@@ -85,6 +87,8 @@ class FlexLayoutRenderObject : public LayoutRenderObject<FlexChildLayoutData> {
   FlexLayoutRenderObject& operator=(FlexLayoutRenderObject&& other) = delete;
   ~FlexLayoutRenderObject() override = default;
 
+  std::u16string_view GetName() const override;
+
   FlexDirection GetFlexDirection() const { return direction_; }
   void SetFlexDirection(FlexDirection direction) {
     direction_ = direction;
diff --git a/include/cru/ui/render/MeasureRequirement.hpp b/include/cru/ui/render/MeasureRequirement.hpp
index 2be159f8..6a0c6952 100644
--- a/include/cru/ui/render/MeasureRequirement.hpp
+++ b/include/cru/ui/render/MeasureRequirement.hpp
@@ -1,8 +1,12 @@
 #pragma once
 #include "Base.hpp"
 
+#include "cru/common/Format.hpp"
+
+#include <fmt/core.h>
 #include <algorithm>
 #include <limits>
+#include <string>
 
 namespace cru::ui::render {
 constexpr Size Min(const Size& left, const Size& right) {
@@ -112,6 +116,11 @@ class MeasureLength final {
     }
   }
 
+  std::u16string ToDebugString() const {
+    return IsSpecified() ? ToUtf16String(GetLengthOrUndefined())
+                         : u"UNSPECIFIED";
+  }
+
  private:
   // -1 for not specify
   float length_;
@@ -160,6 +169,11 @@ struct MeasureSize {
     };
   }
 
+  std::u16string ToDebugString() const {
+    return fmt::format(u"({}, {})", width.ToDebugString(),
+                       height.ToDebugString());
+  }
+
   constexpr static MeasureSize NotSpecified() {
     return MeasureSize{MeasureLength::NotSpecified(),
                        MeasureLength::NotSpecified()};
@@ -187,10 +201,11 @@ struct MeasureRequirement {
       : max(max), min(min) {}
 
   constexpr bool Satisfy(const Size& size) const {
-    return max.width.GetLengthOrMax() >= size.width &&
-           max.height.GetLengthOrMax() >= size.height &&
-           min.width.GetLengthOr0() <= size.width &&
-           min.height.GetLengthOr0() <= size.height;
+    auto normalized = Normalize();
+    return normalized.max.width.GetLengthOrMax() >= size.width &&
+           normalized.max.height.GetLengthOrMax() >= size.height &&
+           normalized.min.width.GetLengthOr0() <= size.width &&
+           normalized.min.height.GetLengthOr0() <= size.height;
   }
 
   constexpr MeasureRequirement Normalize() const {
@@ -225,6 +240,11 @@ struct MeasureRequirement {
     return result;
   }
 
+  std::u16string ToDebugString() const {
+    return fmt::format(u"{{min: {}, max: {}}}", min.ToDebugString(),
+                       max.ToDebugString());
+  }
+
   constexpr static MeasureRequirement Merge(const MeasureRequirement& left,
                                             const MeasureRequirement& right) {
     return MeasureRequirement{MeasureSize::Min(left.max, right.max),
diff --git a/include/cru/ui/render/RenderObject.hpp b/include/cru/ui/render/RenderObject.hpp
index f820f029..57251e3a 100644
--- a/include/cru/ui/render/RenderObject.hpp
+++ b/include/cru/ui/render/RenderObject.hpp
@@ -4,6 +4,9 @@
 #include "MeasureRequirement.hpp"
 #include "cru/common/Event.hpp"
 
+#include <string>
+#include <string_view>
+
 namespace cru::ui::render {
 
 // Render object will not destroy its children when destroyed. Control must
@@ -133,6 +136,10 @@ class RenderObject : public Object {
   void InvalidateLayout();
   void InvalidatePaint();
 
+ public:
+  virtual std::u16string_view GetName() const;
+  std::u16string GetDebugPathInTree() const;
+
  protected:
   void SetChildMode(ChildMode mode) { child_mode_ = mode; }
 
diff --git a/include/cru/ui/render/WindowRenderObject.hpp b/include/cru/ui/render/WindowRenderObject.hpp
index 4c254f42..d2ca5526 100644
--- a/include/cru/ui/render/WindowRenderObject.hpp
+++ b/include/cru/ui/render/WindowRenderObject.hpp
@@ -1,6 +1,8 @@
 #pragma once
 #include "RenderObject.hpp"
 
+#include <string_view>
+
 namespace cru::ui::render {
 class WindowRenderObject : public RenderObject {
  public:
@@ -13,6 +15,9 @@ class WindowRenderObject : public RenderObject {
 
   RenderObject* HitTest(const Point& point) override;
 
+ public:
+  std::u16string_view GetName() const override;
+
  protected:
   Size OnMeasureContent(const MeasureRequirement& requirement,
                         const MeasureSize& preferred_size) override;