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#include "cru/ui/controls/flex_layout.hpp"
#include "cru/ui/render/flex_layout_render_object.hpp"
namespace cru::ui::controls {
using render::FlexLayoutRenderObject;
FlexLayout::FlexLayout() {
render_object_.reset(new FlexLayoutRenderObject());
render_object_->SetAttachedControl(this);
}
render::RenderObject* FlexLayout::GetRenderObject() const {
return render_object_.get();
}
FlexChildLayoutData FlexLayout::GetChildLayoutData(Control* control) {
const auto& render_objects = render_object_->GetChildren();
const auto find_result =
std::find(render_objects.cbegin(), render_objects.cend(),
control->GetRenderObject());
if (find_result == render_objects.cend()) {
throw std::logic_error("Control is not a child of FlexLayout.");
}
int position = static_cast<int>(find_result - render_objects.cbegin());
return *(render_object_->GetChildLayoutData(position));
}
void FlexLayout::SetChildLayoutData(Control* control,
const FlexChildLayoutData& data) {
const auto& render_objects = render_object_->GetChildren();
const auto find_result =
std::find(render_objects.cbegin(), render_objects.cend(),
control->GetRenderObject());
if (find_result == render_objects.cend()) {
throw std::logic_error("Control is not a child of FlexLayout.");
}
int position = static_cast<int>(find_result - render_objects.cbegin());
const auto d = render_object_->GetChildLayoutData(position);
*d = data;
if (const auto window = GetWindow()) window->InvalidateLayout();
}
void FlexLayout::OnAddChild(Control* child, int position) {
render_object_->AddChild(child->GetRenderObject(), position);
}
void FlexLayout::OnRemoveChild(Control* child, int position) {
render_object_->RemoveChild(position);
}
} // namespace cru::ui::controls
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