Merge pull request #37 from crupest/render

Refactor.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/ui/layout_control.cpp b/src/ui/layout_control.cpp
new file mode 100644
index 00000000..c0c4a7fe
--- /dev/null
+++ b/src/ui/layout_control.cpp
@@ -0,0 +1,41 @@
+#include "layout_control.hpp"
+
+#include "window.hpp"
+
+namespace cru::ui {
+LayoutControl::~LayoutControl() {
+  for (const auto child : children_) delete child;
+}
+
+void LayoutControl::AddChild(Control* control, const int position) {
+  assert(control->GetParent() == nullptr);  // The control already has a parent.
+  assert(!dynamic_cast<Window*>(control));  // Can't add a window as child.
+  assert(position >= 0 || position <= this->children_.size()); // The position is out of range.
+
+  children_.insert(this->children_.cbegin() + position, control);
+
+  control->_SetParent(this);
+  control->_SetDescendantWindow(GetWindow());
+
+  OnAddChild(control, position);
+}
+
+void LayoutControl::RemoveChild(const int position) {
+  assert(position >= 0 &&
+         position < this->children_.size());  // The position is out of range.
+
+  const auto i = children_.cbegin() + position;
+  const auto child = *i;
+
+  children_.erase(i);
+
+  child->_SetParent(nullptr);
+  child->_SetDescendantWindow(nullptr);
+
+  OnRemoveChild(child, position);
+}
+
+void LayoutControl::OnAddChild(Control* child, int position) {}
+
+void LayoutControl::OnRemoveChild(Control* child, int position) {}
+}  // namespace cru::ui