1 files changed, 71 insertions, 0 deletions
diff --git a/src/ui/controls/FlexLayout.cpp b/src/ui/controls/FlexLayout.cpp
new file mode 100644
index 00000000..25f30558
--- /dev/null
+++ b/src/ui/controls/FlexLayout.cpp
@@ -0,0 +1,71 @@
+#include "cru/ui/controls/FlexLayout.hpp"
+
+#include "cru/ui/render/FlexLayoutRenderObject.hpp"
+
+namespace cru::ui::controls {
+using render::FlexLayoutRenderObject;
+
+FlexLayout::FlexLayout() {
+  render_object_.reset(new FlexLayoutRenderObject());
+  render_object_->SetAttachedControl(this);
+}
+
+FlexLayout::~FlexLayout() = default;
+
+render::RenderObject* FlexLayout::GetRenderObject() const {
+  return render_object_.get();
+}
+
+namespace {
+int FindPosition(render::RenderObject* parent, render::RenderObject* child) {
+  const auto& render_objects = parent->GetChildren();
+  const auto find_result =
+      std::find(render_objects.cbegin(), render_objects.cend(), child);
+  if (find_result == render_objects.cend()) {
+    throw std::logic_error("Control is not a child of FlexLayout.");
+  }
+  return static_cast<int>(find_result - render_objects.cbegin());
+}
+}  // namespace
+
+FlexChildLayoutData FlexLayout::GetChildLayoutData(Control* control) {
+  Expects(control);
+  return *render_object_->GetChildLayoutData(
+      FindPosition(render_object_.get(), control->GetRenderObject()));
+}
+
+void FlexLayout::SetChildLayoutData(Control* control,
+                                    const FlexChildLayoutData& data) {
+  Expects(control);
+  *render_object_->GetChildLayoutData(
+      FindPosition(render_object_.get(), control->GetRenderObject())) = data;
+}
+
+FlexMainAlignment FlexLayout::GetContentMainAlign() const {
+  return render_object_->GetContentMainAlign();
+}
+
+void FlexLayout::SetContentMainAlign(FlexMainAlignment value) {
+  if (value == GetContentMainAlign()) return;
+  render_object_->SetContentMainAlign(value);
+}
+
+FlexDirection FlexLayout::GetFlexDirection() const {
+  return render_object_->GetFlexDirection();
+}
+
+void FlexLayout::SetFlexDirection(FlexDirection direction) {
+  if (direction == GetFlexDirection()) return;
+  render_object_->SetFlexDirection(direction);
+}
+
+void FlexLayout::OnAddChild(Control* child, const Index position) {
+  render_object_->AddChild(child->GetRenderObject(), position);
+}
+
+void FlexLayout::OnRemoveChild(Control* child, const Index position) {
+  CRU_UNUSED(child)
+
+  render_object_->RemoveChild(position);
+}
+}  // namespace cru::ui::controls