Introduce Attribute builders
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69e7b058d2
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@ -29,7 +29,6 @@ import kotlinx.coroutines.flow.launchIn
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import kotlinx.coroutines.flow.onEach
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import kotlinx.coroutines.isActive
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import kotlinx.coroutines.launch
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import java.net.URL
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import java.nio.file.Path
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import kotlin.math.PI
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import kotlin.random.Random
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@ -69,9 +68,9 @@ fun App() {
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)
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) {
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geoJson(URL("https://raw.githubusercontent.com/ggolikov/cities-comparison/master/src/moscow.geo.json"))
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.attribute(ColorAttribute, Color.Blue)
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.attribute(AlphaAttribute, 0.4f)
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geoJson(javaClass.getResource("/moscow.geo.json")!!)
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.modifyAttribute(ColorAttribute, Color.Blue)
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.modifyAttribute(AlphaAttribute, 0.4f)
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image(pointOne, Icons.Filled.Home)
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76302
demo/maps/src/jvmMain/resources/moscow.geo.json
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76302
demo/maps/src/jvmMain/resources/moscow.geo.json
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File diff suppressed because it is too large
Load Diff
@ -79,7 +79,7 @@ fun App() {
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)
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}
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) {
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val mapState: XYViewScope = rememberMapState(
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val mapState: XYViewScope = XYViewScope.remember(
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ViewConfig(
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onClick = {_, click ->
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println("${click.focus.x}, ${click.focus.y}")
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@ -19,7 +19,7 @@ public value class Attributes internal constructor(internal val map: Map<Attribu
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}
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}
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public fun <T, A : Attribute<T>> Attributes.attribute(
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public fun <T, A : Attribute<T>> Attributes.withAttribute(
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attribute: A,
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attrValue: T?,
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): Attributes = Attributes(
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@ -33,7 +33,7 @@ public fun <T, A : Attribute<T>> Attributes.attribute(
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/**
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* Add an element to a [SetAttribute]
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*/
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public fun <T, A : SetAttribute<T>> Attributes.addValue(
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public fun <T, A : SetAttribute<T>> Attributes.withAttributeElement(
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attribute: A,
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attrValue: T,
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): Attributes {
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@ -46,7 +46,7 @@ public fun <T, A : SetAttribute<T>> Attributes.addValue(
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/**
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* Remove an element from [SetAttribute]
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*/
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public fun <T, A : SetAttribute<T>> Attributes.removeValue(
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public fun <T, A : SetAttribute<T>> Attributes.withoutAttributeElement(
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attribute: A,
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attrValue: T,
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): Attributes {
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@ -56,8 +56,6 @@ public fun <T, A : SetAttribute<T>> Attributes.removeValue(
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)
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}
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public fun <T : Any, A : Attribute<T>> Attributes(
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attribute: A,
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attrValue: T,
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@ -0,0 +1,45 @@
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package center.sciprog.attributes
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/**
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* A safe builder for [Attributes]
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*/
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public class AttributesBuilder internal constructor(private val map: MutableMap<Attribute<*>, Any> = mutableMapOf()) {
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@Suppress("UNCHECKED_CAST")
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public operator fun <T> get(attribute: Attribute<T>): T? = map[attribute] as? T
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public operator fun <V> Attribute<V>.invoke(value: V?) {
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if (value == null) {
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map.remove(this)
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} else {
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map[this] = value
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}
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}
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public fun from(attributes: Attributes) {
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map.putAll(attributes.map)
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}
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public fun <V> SetAttribute<V>.add(
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attrValue: V,
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) {
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val currentSet: Set<V> = get(this) ?: emptySet()
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map[this] = currentSet + attrValue
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}
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/**
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* Remove an element from [SetAttribute]
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*/
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public fun <V> SetAttribute<V>.remove(
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attrValue: V,
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) {
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val currentSet: Set<V> = get(this) ?: emptySet()
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map[this] = currentSet - attrValue
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}
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public fun build(): Attributes = Attributes(map)
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}
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public fun AttributesBuilder(
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attributes: Attributes,
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): AttributesBuilder = AttributesBuilder(attributes.map.toMutableMap())
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@ -74,25 +74,28 @@ public data class FeatureGroup<T : Any>(
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public fun <A> getAttribute(id: FeatureId<Feature<T>>, key: Attribute<A>): A? =
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get(id).attributes[key]
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public fun <F : Feature<T>> FeatureId<F>.modifyAttributes(modify: Attributes.() -> Attributes): FeatureId<F> {
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feature(this, get(this).withAttributes(modify))
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override fun getBoundingBox(zoom: Float): Rectangle<T>? = with(space) {
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featureMap.values.mapNotNull { it.getBoundingBox(zoom) }.wrapRectangles()
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}
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override fun withAttributes(modify: Attributes.() -> Attributes): Feature<T> = copy(attributes = modify(attributes))
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public fun <F : Feature<T>> FeatureId<F>.modifyAttributes(modify: AttributesBuilder.() -> Unit): FeatureId<F> {
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feature(
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this,
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get(this).withAttributes {
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AttributesBuilder(this).apply(modify).build()
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}
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)
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return this
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}
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public fun <F : Feature<T>, V> FeatureId<F>.attribute(key: Attribute<V>, value: V?): FeatureId<F> {
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feature(this, get(this).withAttributes { attribute(key, value) })
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public fun <F : Feature<T>, V> FeatureId<F>.modifyAttribute(key: Attribute<V>, value: V?): FeatureId<F> {
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feature(this, get(this).withAttributes { withAttribute(key, value) })
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return this
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}
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/**
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* Add multi-entry [SetAttribute] value
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*/
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public fun <F : Feature<T>, V> FeatureId<F>.addAttribute(key: SetAttribute<V>, value: V): FeatureId<F> {
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feature(this, get(this).withAttributes { addValue(key, value) })
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return this
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}
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/**
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* Add drag to this feature
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*
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@ -101,10 +104,10 @@ public data class FeatureGroup<T : Any>(
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* TODO use context receiver for that
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*/
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@Suppress("UNCHECKED_CAST")
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public fun FeatureId<DraggableFeature<T>>.draggable(
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public fun <F : DraggableFeature<T>> FeatureId<F>.draggable(
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constraint: ((T) -> T)? = null,
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listener: (PointerEvent.(from: ViewPoint<T>, to: ViewPoint<T>) -> Unit)? = null,
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) {
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): FeatureId<F> {
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if (getAttribute(this, DraggableAttribute) == null) {
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val handle = DragHandle.withPrimaryButton<Any> { event, start, end ->
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val feature = featureMap[id] as? DraggableFeature<T> ?: return@withPrimaryButton DragResult(end)
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@ -121,70 +124,51 @@ public data class FeatureGroup<T : Any>(
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DragResult(end, true)
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}
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}
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this.attribute(DraggableAttribute, handle)
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modifyAttribute(DraggableAttribute, handle)
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}
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//Apply callback
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if (listener != null) {
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onDrag(listener)
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}
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return this
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}
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@Suppress("UNCHECKED_CAST")
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public fun FeatureId<DraggableFeature<T>>.onDrag(
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public fun <F : DraggableFeature<T>> FeatureId<F>.onDrag(
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listener: PointerEvent.(from: ViewPoint<T>, to: ViewPoint<T>) -> Unit,
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) {
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addAttribute(
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DragListenerAttribute,
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): FeatureId<F> = modifyAttributes {
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DragListenerAttribute.add(
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DragListener { event, from, to -> event.listener(from as ViewPoint<T>, to as ViewPoint<T>) }
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)
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}
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@Suppress("UNCHECKED_CAST")
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public fun <F : DomainFeature<T>> FeatureId<F>.onClick(
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onClick: PointerEvent.(click: ViewPoint<T>) -> Unit,
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) {
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addAttribute(
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ClickListenerAttribute,
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): FeatureId<F> = modifyAttributes {
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ClickListenerAttribute.add(
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MouseListener { event, point -> event.onClick(point as ViewPoint<T>) }
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)
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}
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@Suppress("UNCHECKED_CAST")
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public fun <F : DomainFeature<T>> FeatureId<F>.onHover(
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onClick: PointerEvent.(move: ViewPoint<T>) -> Unit,
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) {
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addAttribute(
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HoverListenerAttribute,
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): FeatureId<F> = modifyAttributes {
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HoverListenerAttribute.add(
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MouseListener { event, point -> event.onClick(point as ViewPoint<T>) }
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)
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}
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// /**
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// * Cyclic update of a feature. Called infinitely until canceled.
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// */
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// public fun <F : Feature<T>> FeatureId<F>.updated(
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// scope: CoroutineScope,
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// update: suspend (F) -> F,
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// ): Job = scope.launch {
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// while (isActive) {
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// feature(this@updated, update(get(this@updated)))
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// }
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// }
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public fun <F : Feature<T>> FeatureId<F>.color(color: Color): FeatureId<F> =
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attribute(ColorAttribute, color)
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modifyAttribute(ColorAttribute, color)
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public fun <F : Feature<T>> FeatureId<F>.zoomRange(range: FloatRange): FeatureId<F> =
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attribute(ZoomRangeAttribute, range)
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modifyAttribute(ZoomRangeAttribute, range)
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override fun getBoundingBox(zoom: Float): Rectangle<T>? = with(space) {
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featureMap.values.mapNotNull { it.getBoundingBox(zoom) }.wrapRectangles()
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}
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override fun withAttributes(modify: Attributes.() -> Attributes): Feature<T> = copy(attributes = modify(attributes))
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public companion object {
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@ -2,7 +2,6 @@ package center.sciprog.maps.features
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import center.sciprog.attributes.Attributes
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import center.sciprog.attributes.ZAttribute
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import center.sciprog.attributes.attribute
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public fun <T : Any> FeatureGroup<T>.draggableLine(
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@ -20,7 +19,10 @@ public fun <T : Any> FeatureGroup<T>.draggableLine(
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get(bId).center,
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lineId?.id ?: id
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)
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if (attributes != null) currentId.modifyAttributes { attributes.attribute(ZAttribute, -10f) }
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currentId.modifyAttributes {
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ZAttribute(-10f)
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if (attributes != null) from(attributes)
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}
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lineId = currentId
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return currentId
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}
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@ -0,0 +1,8 @@
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package center.sciprog.maps.geojson
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import center.sciprog.attributes.Attribute
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import kotlinx.serialization.json.JsonObject
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public object GeoJsonPropertiesAttribute : Attribute<JsonObject>
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public object GeoJsonNameAttribute : Attribute<String>
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@ -60,7 +60,7 @@ public fun FeatureGroup<Gmc>.geoJsonFeature(
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id: String? = null,
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): FeatureId<Feature<Gmc>> {
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val geometry = geoJson.geometry ?: return group{}
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val idOverride = geoJson.properties?.get("id")?.jsonPrimitive?.contentOrNull ?: id
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val idOverride = geoJson.json["id"]?.jsonPrimitive?.contentOrNull ?: geoJson.properties?.get("id")?.jsonPrimitive?.contentOrNull ?: id
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val colorOverride = geoJson.properties?.get("color")?.jsonPrimitive?.intOrNull?.let { Color(it) }
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val jsonGeometry = geoJsonGeometry(geometry, idOverride)
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return if( colorOverride!= null){
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@ -43,19 +43,22 @@ class XYViewScope(
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val bottomRight = rightBottom.toDpOffset()
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return DpRect(topLeft.x, topLeft.y, bottomRight.x, bottomRight.y)
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}
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}
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@Composable
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public fun rememberMapState(
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config: ViewConfig<XY>,
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initialViewPoint: ViewPoint<XY>? = null,
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initialRectangle: Rectangle<XY>? = null,
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): XYViewScope = remember {
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XYViewScope(config).also { mapState->
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if (initialViewPoint != null) {
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mapState.viewPoint = initialViewPoint
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} else if (initialRectangle != null) {
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mapState.viewPoint = mapState.computeViewPoint(initialRectangle)
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companion object{
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@Composable
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public fun remember(
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config: ViewConfig<XY>,
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initialViewPoint: ViewPoint<XY>? = null,
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initialRectangle: Rectangle<XY>? = null,
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): XYViewScope = remember {
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XYViewScope(config).also { mapState->
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if (initialViewPoint != null) {
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mapState.viewPoint = initialViewPoint
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} else if (initialRectangle != null) {
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mapState.viewPoint = mapState.computeViewPoint(initialRectangle)
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}
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}
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}
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}
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}
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}
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