1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
#pragma once
#include "render_object.hpp"
#include <memory>
namespace cru::platform {
struct Brush;
struct Geometry;
} // namespace cru::platform
namespace cru::ui::render {
struct CornerRadius {
constexpr CornerRadius()
: left_top(), right_top(), left_bottom(), right_bottom() {}
constexpr CornerRadius(const Point& value)
: left_top(value),
right_top(value),
left_bottom(value),
right_bottom(value) {}
constexpr CornerRadius(Point left_top, Point right_top, Point left_bottom,
Point right_bottom)
: left_top(left_top),
right_top(right_top),
left_bottom(left_bottom),
right_bottom(right_bottom) {}
Point left_top;
Point right_top;
Point left_bottom;
Point right_bottom;
};
class BorderRenderObject : public RenderObject {
public:
explicit BorderRenderObject(std::shared_ptr<platform::Brush> brush);
BorderRenderObject(const BorderRenderObject& other) = delete;
BorderRenderObject(BorderRenderObject&& other) = delete;
BorderRenderObject& operator=(const BorderRenderObject& other) = delete;
BorderRenderObject& operator=(BorderRenderObject&& other) = delete;
~BorderRenderObject() override = default;
bool IsEnabled() const { return is_enabled_; }
void SetEnabled(bool enabled) { is_enabled_ = enabled; }
std::shared_ptr<platform::Brush> GetBrush() const { return border_brush_; }
void SetBrush(std::shared_ptr<platform::Brush> new_brush) {
border_brush_ = std::move(new_brush);
}
Thickness GetBorderWidth() const { return border_thickness_; }
void SetBorderWidth(const Thickness& thickness) {
border_thickness_ = thickness;
}
CornerRadius GetCornerRadius() const { return corner_radius_; }
void SetCornerRadius(const CornerRadius& new_corner_radius) {
corner_radius_ = new_corner_radius;
}
void Refresh() { RecreateGeometry(); }
void Draw(platform::Painter* painter) override;
RenderObject* HitTest(const Point& point) override;
protected:
void OnAddChild(RenderObject* new_child, int position) override;
void OnSizeChanged(const Size& old_size, const Size& new_size) override;
void OnMeasureCore(const Size& available_size) override;
void OnLayoutCore(const Rect& rect) override;
Size OnMeasureContent(const Size& available_size) override;
void OnLayoutContent(const Rect& content_rect) override;
private:
RenderObject* GetChild() const {
return GetChildren().empty() ? nullptr : GetChildren()[0];
}
void RecreateGeometry();
private:
bool is_enabled_ = false;
std::shared_ptr<platform::Brush> border_brush_ = nullptr;
Thickness border_thickness_{};
CornerRadius corner_radius_{};
std::shared_ptr<platform::Geometry> geometry_ = nullptr;
std::shared_ptr<platform::Geometry> border_outer_geometry_ = nullptr;
};
} // namespace cru::ui::render
|