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#pragma once
#include "Control.h"
#include "cru/ui/render/TreeRenderObject.h"
namespace cru::ui::controls {
class TreeView;
class CRU_UI_API TreeViewItem : public Object {
friend TreeView;
private:
TreeViewItem(TreeView* tree_view, TreeViewItem* parent,
render::TreeRenderObjectItem* render_object_item);
~TreeViewItem() override;
public:
CRU_DELETE_COPY(TreeViewItem)
CRU_DELETE_MOVE(TreeViewItem)
TreeView* GetTreeView() { return tree_view_; }
TreeViewItem* GetParent() { return parent_; }
render::TreeRenderObjectItem* GetRenderObjectItem() const {
return render_object_item_;
}
const std::vector<TreeViewItem*>& GetChildren() const { return children_; }
Index GetChildCount() const { return children_.size(); }
TreeViewItem* GetChildAt(Index index) {
Expects(index >= 0 && index < children_.size());
return children_[index];
}
Index IndexOf(TreeViewItem* item) const;
TreeViewItem* AddItem(Index position);
void RemoveItem(Index position);
void RemoveFromParent();
Control* GetControl() const { return control_; }
void SetControl(Control* control);
void TraverseDescendants(std::function<void(TreeViewItem*)> callback);
private:
TreeView* tree_view_;
render::TreeRenderObjectItem* render_object_item_;
TreeViewItem* parent_;
std::vector<TreeViewItem*> children_;
Control* control_;
};
class CRU_UI_API TreeView : public Control {
public:
constexpr static StringView kControlType = u"TreeView";
TreeView();
CRU_DELETE_COPY(TreeView)
CRU_DELETE_MOVE(TreeView)
~TreeView() override;
String GetControlType() const override { return kControlType.ToString(); }
render::TreeRenderObject* GetRenderObject() { return &render_object_; }
void ForEachChild(const std::function<void(Control*)>& predicate) override;
void RemoveChild(Control* control) override;
TreeViewItem* GetRootItem() { return &root_item_; }
private:
render::TreeRenderObject render_object_;
TreeViewItem root_item_;
};
} // namespace cru::ui::controls
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