74 lines
1.8 KiB
GDScript3
74 lines
1.8 KiB
GDScript3
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@tool
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extends Control
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const ChartData: Script = preload("./ChartData.gd")
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@export var radius := 50.0
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var series: Dictionary
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func _init() -> void:
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#rect_clip_content = true
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clip_contents = true
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func clear() -> void:
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series.clear()
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queue_redraw()
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func add_data(data: ChartData) -> void:
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series[data.name] = data
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queue_redraw()
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func remove_data(name: String) -> void:
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series.erase(name)
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queue_redraw()
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func set_radius(value: float) -> void:
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radius = max(0, value)
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self.rect_min_size = Vector2.ONE * radius * 2
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func draw_filled_arc(center: Vector2, radius: float, start_angle: float, end_angle: float,
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point_count: int, color: Color, antialiased: bool = false
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) -> void:
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var points: PackedVector2Array = []
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points.push_back(center)
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for i in range(point_count + 1):
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var angle_point: float = start_angle + i * (end_angle - start_angle) / point_count
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points.push_back(center + Vector2(cos(angle_point), sin(angle_point)) * radius)
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#draw_polygon(points, [color], [], null, null, antialiased)
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draw_polygon(points, [color])
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func _draw() -> void:
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var charts_data: Array = series.values()
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var total: float = 0.0
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for data in charts_data:
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total += data.value
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var center: Vector2 = get_rect().size / 2.0
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var start_angle: float = 0.0
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var i: int
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for data in charts_data:
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var percent: float = data.value / total
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var end_angle: float = start_angle - percent * 2 * PI
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draw_filled_arc(
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center,
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radius,
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start_angle,
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end_angle,
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30 * percent + 2,
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data.color,
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true
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)
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start_angle = end_angle
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var outline_width: float = 1.2
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if not get_theme_constant("dark_theme", "Editor"):
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draw_arc(center, radius - outline_width / 2, 0.0, 2 * PI, 32, Color.LIGHT_SLATE_GRAY, 1.5, true)
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func _notification(what: int) -> void:
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match what:
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NOTIFICATION_THEME_CHANGED:
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queue_redraw()
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