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#include "cru/ui/render/WindowRenderObject.hpp"
#include "../Helper.hpp"
#include "cru/platform/graph/util/Painter.hpp"
#include "cru/ui/UiHost.hpp"
namespace cru::ui::render {
WindowRenderObject::WindowRenderObject(UiHost* host) {
SetChildMode(ChildMode::Single);
ui_host_ = host;
after_layout_event_guard_.Reset(host->AfterLayoutEvent()->AddHandler(
[this](auto) { NotifyAfterLayoutRecursive(this); }));
}
void WindowRenderObject::Draw(platform::graph::IPainter* painter) {
painter->Clear(colors::white);
if (const auto child = GetChild()) {
auto offset = child->GetOffset();
platform::graph::util::WithTransform(
painter, platform::Matrix::Translation(offset.x, offset.y),
[child](platform::graph::IPainter* p) { child->Draw(p); });
}
}
RenderObject* WindowRenderObject::HitTest(const Point& point) {
if (const auto child = GetChild()) {
auto offset = child->GetOffset();
Point p{point.x - offset.x, point.y - offset.y};
const auto result = child->HitTest(p);
if (result != nullptr) {
return result;
}
}
return Rect{Point{}, GetSize()}.IsPointInside(point) ? this : nullptr;
}
Size WindowRenderObject::OnMeasureContent(const MeasureRequirement& requirement,
const MeasureSize& preferred_size) {
if (const auto child = GetChild()) {
child->Measure(requirement, preferred_size);
return child->GetSize();
} else {
return Size{};
}
}
void WindowRenderObject::OnLayoutContent(const Rect& content_rect) {
if (const auto child = GetChild()) child->Layout(content_rect.GetLeftTop());
}
} // namespace cru::ui::render
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