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#include "cru/ui/render/text_render_object.hpp"
#include "../helper.hpp"
#include "cru/platform/graph/factory.hpp"
#include "cru/platform/graph/text_layout.hpp"
#include "cru/platform/graph/util/painter.hpp"
#include <algorithm>
// TODO: Null Check!!!
namespace cru::ui::render {
TextRenderObject::TextRenderObject(
std::shared_ptr<platform::graph::IBrush> brush,
std::shared_ptr<platform::graph::IFont> font,
std::shared_ptr<platform::graph::IBrush> selection_brush) {
Expects(brush);
Expects(font);
Expects(selection_brush);
SetChildMode(ChildMode::None);
brush.swap(brush_);
font.swap(font_);
selection_brush.swap(selection_brush_);
const auto graph_factory = GetGraphFactory();
text_layout_ = graph_factory->CreateTextLayout(font_, "");
}
TextRenderObject::~TextRenderObject() = default;
std::string TextRenderObject::GetText() const {
return text_layout_->GetText();
}
void TextRenderObject::SetText(std::string new_text) {
text_layout_->SetText(std::move(new_text));
}
std::shared_ptr<platform::graph::IFont> TextRenderObject::GetFont() const {
return text_layout_->GetFont();
}
void TextRenderObject::SetFont(std::shared_ptr<platform::graph::IFont> font) {
text_layout_->SetFont(std::move(font));
}
std::vector<Rect> TextRenderObject::TextRangeRect(const TextRange& text_range) {
return text_layout_->TextRangeRect(text_range);
}
Point TextRenderObject::TextSingleRect(gsl::index position, bool trailing) {
return text_layout_->TextSingleRect(position, trailing);
}
platform::graph::TextHitTestResult TextRenderObject::TextHitTest(
const Point& point) {
return text_layout_->HitTest(point);
}
void TextRenderObject::Draw(platform::graph::IPainter* painter) {
platform::graph::util::WithTransform(
painter,
platform::Matrix::Translation(GetMargin().left + GetPadding().left,
GetMargin().top + GetPadding().top),
[this](platform::graph::IPainter* p) {
if (this->selection_range_.has_value()) {
const auto&& rects =
text_layout_->TextRangeRect(this->selection_range_.value());
for (const auto& rect : rects)
p->FillRectangle(rect, this->GetSelectionBrush().get());
}
p->DrawText(Point{}, text_layout_.get(), brush_.get());
});
}
RenderObject* TextRenderObject::HitTest(const Point& point) {
const auto padding_rect = GetPaddingRect();
return padding_rect.IsPointInside(point) ? this : nullptr;
}
Size TextRenderObject::OnMeasureContent(const Size& available_size) {
text_layout_->SetMaxWidth(available_size.width);
text_layout_->SetMaxHeight(available_size.height);
return text_layout_->GetTextBounds().GetSize();
}
void TextRenderObject::OnLayoutContent(const Rect& content_rect) {
CRU_UNUSED(content_rect)
}
void TextRenderObject::OnAfterLayout() {
const auto&& size = GetContentRect().GetSize();
text_layout_->SetMaxWidth(size.width);
text_layout_->SetMaxHeight(size.height);
}
} // namespace cru::ui::render
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