46 lines
1.7 KiB
Kotlin
46 lines
1.7 KiB
Kotlin
import org.openrndr.draw.Drawer
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import org.openrndr.math.Vector2
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import org.openrndr.shape.contour
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import kotlin.math.min
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class RoundedRectangle(val corner: Vector2, val width: Double, val height: Double, val radius: Double) {
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constructor(x: Double, y: Double, width: Double, height: Double, radius: Double) : this(Vector2(x, y), width, height, radius)
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/** the center of the rounded rectangle */
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val center: Vector2
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get() = corner + Vector2(width / 2, height / 2)
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val x: Double get() = corner.x
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val y: Double get() = corner.y
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/** [ShapeContour] representation of the rounded rectangle */
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val contour
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get() = contour {
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// A higher radius than half the width/height makes it go weird
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val r = min(min(radius, width / 2), height / 2)
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moveTo(x + r, y)
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lineTo(x + width - r, y)
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curveTo(Vector2(x + width, y), Vector2(x + width, y + r))
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lineTo(x + width, y + height - r)
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curveTo(Vector2(x + width, y + height), Vector2(x + width - r, y + height))
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lineTo(x + r, y + height)
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curveTo(Vector2(x, y + height), Vector2(x, y + height - r))
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lineTo(x, y + r)
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curveTo(Vector2(x, y), Vector2(x + r, y))
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close()
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}
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}
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fun Drawer.roundedRectangle(x: Double, y: Double, width: Double, height: Double, radius: Double) =
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contour(RoundedRectangle(x, y, width, height, radius).contour)
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fun Drawer.roundedRectangle(position: Vector2, width: Double, height: Double, radius: Double) =
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contour(RoundedRectangle(position, width, height, radius).contour)
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fun Drawer.roundedRectangle(roundedRectangle: RoundedRectangle) =
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contour(roundedRectangle.contour) |