761 lines
24 KiB
Kotlin
761 lines
24 KiB
Kotlin
package org.openrndr.extra.composition
|
|
|
|
import org.openrndr.collections.pflatMap
|
|
import org.openrndr.collections.pforEach
|
|
import org.openrndr.color.ColorRGBa
|
|
import org.openrndr.draw.ColorBuffer
|
|
import org.openrndr.draw.LineCap
|
|
import org.openrndr.draw.LineJoin
|
|
import org.openrndr.math.Matrix44
|
|
import org.openrndr.math.Vector2
|
|
import org.openrndr.math.Vector3
|
|
import org.openrndr.math.YPolarity
|
|
import org.openrndr.math.transforms.*
|
|
import org.openrndr.shape.*
|
|
|
|
/**
|
|
* Used internally to define [ClipMode]s.
|
|
*/
|
|
enum class ClipOp {
|
|
DISABLED,
|
|
DIFFERENCE,
|
|
REVERSE_DIFFERENCE,
|
|
INTERSECT,
|
|
UNION
|
|
}
|
|
|
|
/**
|
|
* Specifies if transformations should be kept separate
|
|
* or applied to the clipped object and reset to identity.
|
|
*/
|
|
enum class TransformMode {
|
|
KEEP,
|
|
APPLY
|
|
}
|
|
|
|
/**
|
|
* Specifies in which way to combine [Shape]s
|
|
* to form a [Composition]
|
|
*/
|
|
enum class ClipMode(val grouped: Boolean, val op: ClipOp) {
|
|
DISABLED(false, ClipOp.DISABLED),
|
|
DIFFERENCE(false, ClipOp.DIFFERENCE),
|
|
DIFFERENCE_GROUP(true, ClipOp.DIFFERENCE),
|
|
REVERSE_DIFFERENCE(false, ClipOp.REVERSE_DIFFERENCE),
|
|
REVERSE_DIFFERENCE_GROUP(true, ClipOp.REVERSE_DIFFERENCE),
|
|
INTERSECT(false, ClipOp.INTERSECT),
|
|
INTERSECT_GROUP(true, ClipOp.INTERSECT),
|
|
UNION(false, ClipOp.UNION),
|
|
UNION_GROUP(true, ClipOp.UNION)
|
|
}
|
|
|
|
/**
|
|
* The set of draw style properties used for rendering a [Composition]
|
|
*/
|
|
private data class CompositionDrawStyle(
|
|
var fill: ColorRGBa? = null,
|
|
var fillOpacity: Double = 1.0,
|
|
var stroke: ColorRGBa? = ColorRGBa.BLACK,
|
|
var strokeOpacity: Double = 1.0,
|
|
var strokeWeight: Double = 1.0,
|
|
var opacity: Double = 1.0,
|
|
var clipMode: ClipMode = ClipMode.DISABLED,
|
|
var mask: Shape? = null,
|
|
var transformMode: TransformMode = TransformMode.APPLY,
|
|
var lineCap: LineCap = LineCap.BUTT,
|
|
var lineJoin: LineJoin = LineJoin.MITER,
|
|
var miterlimit: Double = 4.0,
|
|
var visibility: Visibility = Visibility.Visible
|
|
)
|
|
|
|
/**
|
|
* Data structure containing intersection information.
|
|
*/
|
|
data class ShapeNodeIntersection(val node: ShapeNode, val intersection: ContourIntersection)
|
|
|
|
/**
|
|
* Data structure containing information about a point
|
|
* in a [ShapeContour] closest to some other 2D point.
|
|
*/
|
|
data class ShapeNodeNearestContour(val node: ShapeNode, val point: ContourPoint, val distanceDirection: Vector2, val distance: Double)
|
|
|
|
/**
|
|
* Merges two lists of [ShapeNodeIntersection] removing duplicates under the
|
|
* given [threshold]. Used internally by [intersections].
|
|
*/
|
|
fun List<ShapeNodeIntersection>.merge(threshold: Double = 0.5): List<ShapeNodeIntersection> {
|
|
val result = mutableListOf<ShapeNodeIntersection>()
|
|
for (i in this) {
|
|
val nearest = result.minByOrNull { it.intersection.position.squaredDistanceTo(i.intersection.position) }
|
|
if (nearest == null) {
|
|
result.add(i)
|
|
} else if (nearest.intersection.position.squaredDistanceTo(i.intersection.position) >= threshold * threshold) {
|
|
result.add(i)
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
|
|
/**
|
|
* A Drawer-like interface for the creation of Compositions
|
|
* This should be easier than creating Compositions manually
|
|
*/
|
|
class CompositionDrawer(documentBounds: CompositionDimensions = defaultCompositionDimensions,
|
|
composition: Composition? = null,
|
|
cursor: GroupNode? = composition?.root as? GroupNode
|
|
) {
|
|
val root = (composition?.root as? GroupNode) ?: GroupNode()
|
|
val composition = composition ?: Composition(root, documentBounds)
|
|
|
|
var cursor = cursor ?: root
|
|
private set
|
|
|
|
private val modelStack = ArrayDeque<Matrix44>()
|
|
private val styleStack = ArrayDeque<CompositionDrawStyle>().apply { }
|
|
private var drawStyle = CompositionDrawStyle()
|
|
|
|
var model = Matrix44.IDENTITY
|
|
|
|
var fill
|
|
get() = drawStyle.fill?.opacify(drawStyle.fillOpacity)?.opacify(drawStyle.opacity)
|
|
set(value) = run {
|
|
drawStyle.fill = value?.copy(alpha = 1.0)
|
|
drawStyle.fillOpacity = value?.alpha ?: 1.0
|
|
}
|
|
|
|
var fillOpacity
|
|
get() = drawStyle.fillOpacity
|
|
set(value) = run { drawStyle.fillOpacity = value }
|
|
|
|
var stroke
|
|
get() = drawStyle.stroke?.opacify(drawStyle.strokeOpacity)?.opacify(drawStyle.opacity)
|
|
set(value) = run {
|
|
drawStyle.stroke = value?.copy(alpha = 1.0)
|
|
drawStyle.strokeOpacity = value?.alpha ?: 1.0
|
|
}
|
|
|
|
var strokeOpacity
|
|
get() = drawStyle.strokeOpacity
|
|
set(value) = run { drawStyle.strokeOpacity = value }
|
|
|
|
var strokeWeight
|
|
get() = drawStyle.strokeWeight
|
|
set(value) = run { drawStyle.strokeWeight = value }
|
|
|
|
var miterlimit
|
|
get() = drawStyle.miterlimit
|
|
set(value) = run { drawStyle.miterlimit = value }
|
|
|
|
var lineCap
|
|
get() = drawStyle.lineCap
|
|
set(value) = run { drawStyle.lineCap = value }
|
|
|
|
var lineJoin
|
|
get() = drawStyle.lineJoin
|
|
set(value) = run { drawStyle.lineJoin = value }
|
|
|
|
var opacity
|
|
get() = drawStyle.opacity
|
|
set(value) = run { drawStyle.opacity = value }
|
|
|
|
var visibility
|
|
get() = drawStyle.visibility
|
|
set(value) = run { drawStyle.visibility = value }
|
|
|
|
var clipMode
|
|
get() = drawStyle.clipMode
|
|
set(value) = run { drawStyle.clipMode = value }
|
|
|
|
var mask: Shape?
|
|
get() = drawStyle.mask
|
|
set(value) = run { drawStyle.mask = value }
|
|
|
|
var transformMode
|
|
get() = drawStyle.transformMode
|
|
set(value) = run { drawStyle.transformMode = value }
|
|
|
|
fun pushModel() {
|
|
modelStack.addLast(model)
|
|
}
|
|
|
|
fun popModel() {
|
|
model = modelStack.removeLast()
|
|
}
|
|
|
|
fun pushStyle() {
|
|
styleStack.addLast(drawStyle.copy())
|
|
}
|
|
|
|
fun popStyle() {
|
|
drawStyle = styleStack.removeLast()
|
|
}
|
|
|
|
fun isolated(draw: CompositionDrawer.() -> Unit) {
|
|
pushModel()
|
|
pushStyle()
|
|
draw()
|
|
popModel()
|
|
popStyle()
|
|
}
|
|
|
|
fun GroupNode.with(builder: CompositionDrawer.() -> Unit): GroupNode {
|
|
val oldCursor = cursor
|
|
cursor = this
|
|
builder()
|
|
cursor = oldCursor
|
|
return this
|
|
}
|
|
|
|
/**
|
|
* Create a group node and run `builder` inside its context
|
|
* @param insert if true the created group will be inserted at [cursor]
|
|
* @param id an optional identifier
|
|
* @param builder the function that is executed inside the group context
|
|
*/
|
|
fun group(insert: Boolean = true, id: String? = null, builder: CompositionDrawer.() -> Unit): GroupNode {
|
|
val group = GroupNode()
|
|
group.id = id
|
|
val oldCursor = cursor
|
|
|
|
if (insert) {
|
|
cursor.children.add(group)
|
|
group.parent = cursor
|
|
}
|
|
cursor = group
|
|
builder()
|
|
|
|
cursor = oldCursor
|
|
return group
|
|
}
|
|
|
|
fun translate(x: Double, y: Double) = translate(Vector2(x, y))
|
|
|
|
fun rotate(rotationInDegrees: Double) {
|
|
model *= Matrix44.rotateZ(rotationInDegrees)
|
|
}
|
|
|
|
fun scale(s: Double) {
|
|
model *= Matrix44.scale(s, s, s)
|
|
}
|
|
|
|
fun scale(x: Double, y: Double) {
|
|
model *= Matrix44.scale(x, y, 1.0)
|
|
}
|
|
|
|
fun translate(t: Vector2) {
|
|
model *= Matrix44.translate(t.vector3())
|
|
}
|
|
|
|
fun contour(contour: ShapeContour, insert: Boolean = true): ShapeNode? {
|
|
if (contour.empty) {
|
|
return null
|
|
}
|
|
val shape = Shape(listOf(contour))
|
|
return shape(shape, insert)
|
|
}
|
|
|
|
fun contours(contours: List<ShapeContour>, insert: Boolean = true) = contours.map { contour(it, insert) }
|
|
|
|
/**
|
|
* Search for a point on a contour in the composition tree that's nearest to `point`
|
|
* @param point the query point
|
|
* @param searchFrom a node from which the search starts, defaults to composition root
|
|
* @return an optional org.openrndr.shape.ShapeNodeNearestContour instance
|
|
*/
|
|
fun nearest(
|
|
point: Vector2,
|
|
searchFrom: CompositionNode = composition.root as GroupNode
|
|
): ShapeNodeNearestContour? {
|
|
return distances(point, searchFrom).firstOrNull()
|
|
}
|
|
|
|
fun CompositionNode.nearest(point: Vector2) = nearest(point, searchFrom = this)
|
|
|
|
fun difference(
|
|
shape: Shape,
|
|
searchFrom: CompositionNode = composition.root as GroupNode
|
|
): Shape {
|
|
val shapes = searchFrom.findShapes()
|
|
var from = shape
|
|
|
|
for (subtract in shapes) {
|
|
if (shape.bounds.intersects(subtract.shape.bounds)) {
|
|
from = difference(from, subtract.shape)
|
|
}
|
|
}
|
|
return from
|
|
}
|
|
|
|
/**
|
|
* Find distances to each contour in the composition tree (or starting node)
|
|
* @param point the query point
|
|
* @param searchFrom a node from which the search starts, defaults to composition root
|
|
* @return a sorted list of [ShapeNodeNearestContour] describing distance to every contour
|
|
*/
|
|
fun distances(
|
|
point: Vector2,
|
|
searchFrom: CompositionNode = composition.root as GroupNode
|
|
): List<ShapeNodeNearestContour> {
|
|
return searchFrom.findShapes().flatMap { node ->
|
|
node.shape.contours.filter { !it.empty }
|
|
.map { it.nearest(point) }
|
|
.map { ShapeNodeNearestContour(node, it, point - it.position, it.position.distanceTo(point)) }
|
|
}.sortedBy { it.distance }
|
|
}
|
|
|
|
fun CompositionNode.distances(point: Vector2): List<ShapeNodeNearestContour> = distances(point, searchFrom = this)
|
|
|
|
/**
|
|
* Test a given `contour` against org.openrndr.shape.contours in the composition tree
|
|
* @param contour the query contour
|
|
* @param searchFrom a node from which the search starts, defaults to composition root
|
|
* @param mergeThreshold minimum distance between intersections before they are merged together,
|
|
* 0.0 or lower means no org.openrndr.shape.merge
|
|
* @return a list of `org.openrndr.shape.ShapeNodeIntersection`
|
|
*/
|
|
fun intersections(
|
|
contour: ShapeContour,
|
|
searchFrom: CompositionNode = composition.root as GroupNode,
|
|
mergeThreshold: Double = 0.5
|
|
): List<ShapeNodeIntersection> {
|
|
return searchFrom.findShapes().pflatMap { node ->
|
|
if (node.bounds.intersects(contour.bounds)) {
|
|
node.shape.contours.flatMap { nodeContour ->
|
|
intersections(contour, nodeContour).map {
|
|
ShapeNodeIntersection(node, it)
|
|
}
|
|
}
|
|
} else {
|
|
emptyList()
|
|
}
|
|
}.let {
|
|
if (mergeThreshold > 0.0) {
|
|
it.merge(mergeThreshold)
|
|
} else {
|
|
it
|
|
}
|
|
}
|
|
}
|
|
|
|
fun CompositionNode.intersections(contour: ShapeContour, mergeThreshold: Double = 0.5) =
|
|
intersections(contour, this, mergeThreshold)
|
|
|
|
/**
|
|
* Test a given `shape` against org.openrndr.shape.contours in the composition tree
|
|
* @param shape the query shape
|
|
* @param searchFrom a node from which the search starts, defaults to composition root
|
|
* @return a list of `org.openrndr.shape.ShapeNodeIntersection`
|
|
*/
|
|
fun intersections(
|
|
shape: Shape,
|
|
searchFrom: CompositionNode = composition.root as GroupNode,
|
|
mergeThreshold: Double = 0.5
|
|
): List<ShapeNodeIntersection> {
|
|
return shape.contours.flatMap {
|
|
intersections(it, searchFrom, mergeThreshold)
|
|
}
|
|
}
|
|
|
|
fun CompositionNode.intersections(shape: Shape, mergeThreshold: Double = 0.5) =
|
|
intersections(shape, this, mergeThreshold)
|
|
|
|
|
|
fun shape(shape: Shape, insert: Boolean = true): ShapeNode? {
|
|
if (shape.empty) {
|
|
return null
|
|
}
|
|
|
|
val inverseModel = model.inversed
|
|
val postShape = mask?.let { intersection(shape, it.transform(inverseModel)) } ?: shape
|
|
|
|
if (postShape.empty) {
|
|
return null
|
|
}
|
|
|
|
// only use clipping for open shapes
|
|
val clipMode = if (postShape.topology == ShapeTopology.CLOSED) clipMode else ClipMode.DISABLED
|
|
|
|
return when (clipMode.op) {
|
|
ClipOp.DISABLED, ClipOp.REVERSE_DIFFERENCE -> {
|
|
val shapeNode = ShapeNode(postShape)
|
|
|
|
val shapeTransform: Matrix44 = when (transformMode) {
|
|
TransformMode.KEEP -> {
|
|
shapeNode.transform = model
|
|
Matrix44.IDENTITY
|
|
}
|
|
TransformMode.APPLY -> {
|
|
shapeNode.transform = Matrix44.IDENTITY
|
|
model
|
|
}
|
|
}
|
|
shapeNode.shape = when (clipMode.op) {
|
|
ClipOp.DISABLED -> postShape.transform(shapeTransform)
|
|
ClipOp.REVERSE_DIFFERENCE -> {
|
|
val shapeNodes = (if (!clipMode.grouped) composition.findShapes() else cursor.findShapes())
|
|
var toInsert = shape
|
|
val inverse = model.inversed
|
|
for (node in shapeNodes) {
|
|
if (toInsert.empty) {
|
|
break
|
|
} else {
|
|
toInsert = difference(toInsert, node.effectiveShape.transform(inverse))
|
|
}
|
|
}
|
|
toInsert
|
|
}
|
|
else -> error("unreachable")
|
|
}
|
|
shapeNode.stroke = stroke
|
|
shapeNode.strokeOpacity = strokeOpacity
|
|
shapeNode.strokeWeight = strokeWeight
|
|
shapeNode.miterLimit = miterlimit
|
|
shapeNode.lineCap = lineCap
|
|
shapeNode.lineJoin = lineJoin
|
|
shapeNode.fill = fill
|
|
shapeNode.fillOpacity = fillOpacity
|
|
|
|
if (insert) {
|
|
cursor.children.add(shapeNode)
|
|
shapeNode.parent = cursor
|
|
}
|
|
shapeNode
|
|
}
|
|
else -> {
|
|
val shapeNodes = (if (!clipMode.grouped) composition.findShapes() else cursor.findShapes())
|
|
val toRemove = mutableListOf<CompositionNode>()
|
|
shapeNodes.pforEach { shapeNode ->
|
|
val inverse = shapeNode.effectiveTransform.inversed
|
|
val transformedShape = postShape.transform(inverse * model)
|
|
val operated =
|
|
when (clipMode.op) {
|
|
ClipOp.INTERSECT -> intersection(shapeNode.shape, transformedShape)
|
|
ClipOp.UNION -> union(shapeNode.shape, transformedShape)
|
|
ClipOp.DIFFERENCE -> difference(shapeNode.shape, transformedShape)
|
|
else -> error("unsupported base op ${clipMode.op}")
|
|
}
|
|
if (!operated.empty) {
|
|
shapeNode.shape = operated
|
|
} else {
|
|
//synchronized(toRemove) {
|
|
toRemove.add(shapeNode)
|
|
//}
|
|
}
|
|
}
|
|
for (node in toRemove) {
|
|
node.remove()
|
|
}
|
|
null
|
|
}
|
|
}
|
|
}
|
|
|
|
fun shapes(shapes: List<Shape>, insert: Boolean = true) = shapes.map { shape(it, insert) }
|
|
|
|
fun rectangle(rectangle: Rectangle, closed: Boolean = true, insert: Boolean = true) = contour(rectangle.contour.let {
|
|
if (closed) {
|
|
it
|
|
} else {
|
|
it.open
|
|
}
|
|
}, insert = insert)
|
|
|
|
fun rectangle(x: Double, y: Double, width: Double, height: Double, closed: Boolean = true, insert: Boolean = true) = rectangle(
|
|
Rectangle(x, y, width, height), closed, insert)
|
|
|
|
fun rectangles(rectangles: List<Rectangle>, insert: Boolean = true) = rectangles.map { rectangle(it, insert) }
|
|
|
|
fun rectangles(positions: List<Vector2>, width: Double, height: Double, insert: Boolean = true) = rectangles(positions.map {
|
|
Rectangle(it, width, height)
|
|
}, insert)
|
|
|
|
fun rectangles(positions: List<Vector2>, dimensions: List<Vector2>, insert: Boolean) = rectangles((positions zip dimensions).map {
|
|
Rectangle(it.first, it.second.x, it.second.y)
|
|
}, insert)
|
|
|
|
fun circle(x: Double, y: Double, radius: Double, closed: Boolean = true, insert: Boolean = true) = circle(
|
|
Circle(
|
|
Vector2(x, y),
|
|
radius
|
|
), closed, insert)
|
|
|
|
fun circle(position: Vector2, radius: Double, closed: Boolean = true, insert: Boolean = true) = circle(
|
|
Circle(
|
|
position,
|
|
radius
|
|
), closed, insert)
|
|
|
|
fun circle(circle: Circle, closed: Boolean = true, insert: Boolean = true) = contour(circle.contour.let {
|
|
if (closed) {
|
|
it
|
|
} else {
|
|
it.open
|
|
}
|
|
}, insert)
|
|
|
|
fun circles(circles: List<Circle>, insert: Boolean = true) = circles.map { circle(it, insert) }
|
|
|
|
fun circles(positions: List<Vector2>, radius: Double, insert: Boolean = true) = circles(positions.map {
|
|
Circle(
|
|
it,
|
|
radius
|
|
)
|
|
}, insert)
|
|
|
|
fun circles(positions: List<Vector2>, radii: List<Double>, insert: Boolean = true) = circles((positions zip radii).map {
|
|
Circle(
|
|
it.first,
|
|
it.second
|
|
)
|
|
}, insert)
|
|
|
|
/*
|
|
fun ellipse(
|
|
x: Double,
|
|
y: Double,
|
|
xRadius: Double,
|
|
yRadius: Double,
|
|
rotationInDegrees: Double = 0.0,
|
|
closed: Boolean = true,
|
|
insert: Boolean = true
|
|
) = ellipse(Vector2(x, y), xRadius, yRadius, rotationInDegrees, closed, insert)
|
|
|
|
fun ellipse(
|
|
center: Vector2,
|
|
xRadius: Double,
|
|
yRadius: Double,
|
|
rotationInDegrees: Double,
|
|
closed: Boolean = true,
|
|
insert: Boolean = true
|
|
) = contour(OrientedEllipse(center, xRadius, yRadius, rotationInDegrees).contour.let {
|
|
if (closed) {
|
|
it
|
|
} else {
|
|
it.open
|
|
}
|
|
}, insert)
|
|
*/
|
|
|
|
|
|
fun lineSegment(
|
|
startX: Double,
|
|
startY: Double,
|
|
endX: Double,
|
|
endY: Double,
|
|
insert: Boolean = true
|
|
) = lineSegment(LineSegment(startX, startY, endX, endY), insert)
|
|
|
|
fun lineSegment(
|
|
start: Vector2,
|
|
end: Vector2,
|
|
insert: Boolean = true
|
|
) = lineSegment(LineSegment(start, end), insert)
|
|
|
|
fun lineSegment(
|
|
lineSegment: LineSegment,
|
|
insert: Boolean = true
|
|
) = contour(lineSegment.contour, insert)
|
|
|
|
fun lineSegments(
|
|
lineSegments: List<LineSegment>,
|
|
insert: Boolean = true
|
|
) = lineSegments.map {
|
|
lineSegment(it, insert)
|
|
}
|
|
|
|
fun segment(
|
|
start: Vector2,
|
|
c0: Vector2,
|
|
c1: Vector2,
|
|
end: Vector2,
|
|
insert: Boolean = true
|
|
) = segment(Segment2D(start, c0, c1, end), insert)
|
|
|
|
fun segment(
|
|
start: Vector2,
|
|
c0: Vector2,
|
|
end: Vector2,
|
|
insert: Boolean = true
|
|
) = segment(Segment2D(start, c0, end), insert)
|
|
|
|
fun segment(
|
|
start: Vector2,
|
|
end: Vector2,
|
|
insert: Boolean = true
|
|
) = segment(Segment2D(start, end), insert)
|
|
|
|
fun segment(
|
|
segment: Segment2D,
|
|
insert: Boolean = true
|
|
) = contour(segment.contour, insert)
|
|
|
|
fun segments(
|
|
segments: List<Segment2D>,
|
|
insert: Boolean = true
|
|
) = segments.map {
|
|
segment(it, insert)
|
|
}
|
|
|
|
fun lineStrip(
|
|
points: List<Vector2>,
|
|
insert: Boolean = true
|
|
) = contour(ShapeContour.fromPoints(points, false, YPolarity.CW_NEGATIVE_Y), insert)
|
|
|
|
fun lineLoop(
|
|
points: List<Vector2>,
|
|
insert: Boolean = true
|
|
) = contour(ShapeContour.fromPoints(points, true, YPolarity.CW_NEGATIVE_Y), insert)
|
|
|
|
fun text(
|
|
text: String,
|
|
position: Vector2,
|
|
insert: Boolean = true
|
|
): TextNode {
|
|
val g = GroupNode()
|
|
g.style.transform = Transform.Matrix(transform { translate(position.xy0) })
|
|
val textNode = TextNode(text, null).apply {
|
|
this.style.fill = when (val f = this@CompositionDrawer.fill) {
|
|
is ColorRGBa -> Paint.RGB(f)
|
|
else -> Paint.None
|
|
}
|
|
|
|
}
|
|
g.children.add(textNode)
|
|
if (insert) {
|
|
cursor.children.add(g)
|
|
}
|
|
return textNode
|
|
}
|
|
|
|
fun textOnContour(
|
|
text: String,
|
|
contour: ShapeContour,
|
|
insert: Boolean = true
|
|
): TextNode {
|
|
val textNode = TextNode(text, contour)
|
|
if (insert) {
|
|
cursor.children.add(textNode)
|
|
}
|
|
return textNode
|
|
}
|
|
|
|
fun texts(text: List<String>, positions: List<Vector2>) =
|
|
(text zip positions).map {
|
|
text(it.first, it.second)
|
|
}
|
|
|
|
/**
|
|
* Adds an image to the composition tree
|
|
*/
|
|
fun image(
|
|
image: ColorBuffer,
|
|
x: Double = 0.0,
|
|
y: Double = 0.0,
|
|
insert: Boolean = true
|
|
): ImageNode {
|
|
val node = ImageNode(image, x, y, width = image.width.toDouble(), height = image.height.toDouble())
|
|
node.style.transform = Transform.Matrix(this.model)
|
|
if (insert) {
|
|
cursor.children.add(node)
|
|
}
|
|
return node
|
|
}
|
|
|
|
fun composition(composition: Composition): CompositionNode {
|
|
val rootContainer = GroupNode()
|
|
val newRoot = composition.root.duplicate(insert = false)
|
|
newRoot.parent = rootContainer
|
|
rootContainer.children.add(newRoot)
|
|
rootContainer.transform *= model
|
|
rootContainer.parent = cursor
|
|
cursor.children.add(rootContainer)
|
|
|
|
return rootContainer
|
|
}
|
|
|
|
fun CompositionNode.translate(x: Double, y: Double, z: Double = 0.0) {
|
|
transform = transform.transform {
|
|
translate(x, y, z)
|
|
}
|
|
}
|
|
|
|
fun CompositionNode.rotate(angleInDegrees: Double, pivot: Vector2 = Vector2.ZERO) {
|
|
transform = transform.transform {
|
|
translate(pivot.xy0)
|
|
rotate(Vector3.UNIT_Z, angleInDegrees)
|
|
translate(-pivot.xy0)
|
|
}
|
|
}
|
|
|
|
fun CompositionNode.scale(scale: Double, pivot: Vector2 = Vector2.ZERO) {
|
|
transform = transform.transform {
|
|
translate(pivot.xy0)
|
|
scale(scale, scale, scale)
|
|
translate(-pivot.xy0)
|
|
}
|
|
}
|
|
|
|
fun CompositionNode.transform(builder: TransformBuilder.() -> Unit) {
|
|
return this.transform(builder)
|
|
}
|
|
|
|
/**
|
|
* Returns a deep copy of a [CompositionNode].
|
|
* If [insert] is true the copy is inserted at [cursor].
|
|
* @return a deep copy of the node
|
|
*/
|
|
// TODO: Include new features
|
|
fun CompositionNode.duplicate(insert: Boolean = true): CompositionNode {
|
|
fun nodeCopy(node: CompositionNode): CompositionNode {
|
|
val copy = when (node) {
|
|
is ImageNode -> {
|
|
ImageNode(node.image, node.x, node.y, node.width, node.height)
|
|
}
|
|
is ShapeNode -> {
|
|
ShapeNode(node.shape)
|
|
}
|
|
is TextNode -> {
|
|
TextNode(node.text, node.contour)
|
|
}
|
|
is GroupNode -> {
|
|
val children = node.children.map { nodeCopy(it) }.toMutableList()
|
|
val groupNode = GroupNode(children)
|
|
groupNode.children.forEach {
|
|
it.parent = groupNode
|
|
}
|
|
groupNode
|
|
}
|
|
}
|
|
copy.style = node.style
|
|
return copy
|
|
}
|
|
|
|
val copy = nodeCopy(this)
|
|
if (insert) {
|
|
this@CompositionDrawer.cursor.children.add(copy)
|
|
copy.parent = cursor
|
|
}
|
|
return copy
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a [Composition]. The draw operations contained inside
|
|
* the [drawFunction] do not render graphics to the screen,
|
|
* but populate the Composition instead.
|
|
*/
|
|
fun drawComposition(
|
|
documentBounds: CompositionDimensions = defaultCompositionDimensions,
|
|
composition: Composition? = null,
|
|
cursor: GroupNode? = composition?.root as? GroupNode,
|
|
drawFunction: CompositionDrawer.() -> Unit
|
|
): Composition = CompositionDrawer(documentBounds, composition, cursor).apply { drawFunction() }.composition
|
|
|
|
/**
|
|
* Draw into an existing [Composition].
|
|
*/
|
|
fun Composition.draw(drawFunction: CompositionDrawer.() -> Unit) {
|
|
drawComposition(composition = this, drawFunction = drawFunction)
|
|
}
|