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modern-qt/widget/shape/rounded-rect.hh

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+#pragma once
+
+#include "modern-qt/utility/painter/helper.hh"
+#include "modern-qt/utility/wrapper/property.hh"
+#include "modern-qt/utility/wrapper/widget.hh"
+#include "modern-qt/widget/shape/shape.hh"
+
+namespace creeper::rounded_rect::internal {
+
+class RoundedRect : public Shape {
+public:
+    void set_radius(double radius) {
+        radius_nx_ny_ = radius;
+        radius_px_py_ = radius;
+        radius_nx_py_ = radius;
+        radius_px_ny_ = radius;
+        update();
+    }
+
+    void set_radius_nx_ny(double radius) {
+        radius_nx_ny_ = radius;
+        update();
+    }
+    void set_radius_px_py(double radius) {
+        radius_px_py_ = radius;
+        update();
+    }
+    void set_radius_nx_py(double radius) {
+        radius_nx_py_ = radius;
+        update();
+    }
+    void set_radius_px_ny(double radius) {
+        radius_px_ny_ = radius;
+        update();
+    }
+
+    void set_radius_top_left(double radius) { set_radius_nx_ny(radius); }
+
+    void set_radius_top_right(double radius) { set_radius_px_ny(radius); }
+
+    void set_radius_bottom_left(double radius) { set_radius_nx_py(radius); }
+
+    void set_radius_bottom_right(double radius) { set_radius_px_py(radius); }
+
+protected:
+    void paintEvent(QPaintEvent* event) override {
+        auto painter = QPainter { this };
+
+        util::PainterHelper { painter }
+            .set_render_hint(QPainter::Antialiasing)
+            .rounded_rectangle( //
+                background_, border_color_, border_width_, rect(),
+                radius_nx_ny_, // tl: 左上
+                radius_px_ny_, // tr: 右上
+                radius_px_py_, // br: 右下
+                radius_nx_py_  // bl: 左下
+                )
+            .done();
+    }
+
+private:
+    double radius_nx_ny_ = 0;
+    double radius_px_py_ = 0;
+    double radius_nx_py_ = 0;
+    double radius_px_ny_ = 0;
+};
+
+}
+namespace creeper::rounded_rect::pro {
+using Token = common::Token<internal::RoundedRect>;
+
+// 通用属性
+using Radius = common::pro::Radius<Token>;
+
+using RadiusPxPy = common::pro::RadiusPxPy<Token>;
+using RadiusNxNy = common::pro::RadiusNxNy<Token>;
+using RadiusPxNy = common::pro::RadiusPxNy<Token>;
+using RadiusNxPy = common::pro::RadiusNxPy<Token>;
+
+using RadiusTopLeft     = RadiusNxNy;
+using RadiusTopRight    = RadiusPxNy;
+using RadiusBottomLeft  = RadiusNxPy;
+using RadiusBottomRight = RadiusPxPy;
+
+using Background = common::pro::Background<Token>;
+
+using BorderWidth = common::pro::BorderWidth<Token>;
+using BorderColor = common::pro::BorderColor<Token>;
+
+template <typename T>
+concept trait = std::derived_from<T, Token>;
+
+CREEPER_DEFINE_CHECKER(trait)
+using namespace widget::pro;
+}
+namespace creeper {
+
+using RoundedRect = Declarative<rounded_rect::internal::RoundedRect,
+    CheckerOr<rounded_rect::pro::checker, widget::pro::checker>>;
+
+}