Stanislav Erokhin
f624800b84
I was forced to manually do update the following files, because otherwise they would be ignored according .gitignore settings. Probably they should be deleted from repo. Interop/.idea/compiler.xml Interop/.idea/gradle.xml Interop/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_runtime_1_0_3.xml Interop/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_0_3.xml Interop/.idea/modules.xml Interop/.idea/modules/Indexer/Indexer.iml Interop/.idea/modules/Runtime/Runtime.iml Interop/.idea/modules/StubGenerator/StubGenerator.iml backend.native/backend.native.iml backend.native/bc.frontend/bc.frontend.iml backend.native/cli.bc/cli.bc.iml backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt backend.native/tests/link/lib/foo.kt backend.native/tests/link/lib/foo2.kt backend.native/tests/teamcity-test.property
54 lines
1.3 KiB
Kotlin
54 lines
1.3 KiB
Kotlin
/*
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* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
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* that can be found in the license/LICENSE.txt file.
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*/
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package sample.html5canvas
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import kotlinx.interop.wasm.dom.*
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import kotlinx.wasm.jsinterop.*
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fun main() {
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val canvas = document.getElementById("myCanvas").asCanvas
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val ctx = canvas.getContext("2d")
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val rect = canvas.getBoundingClientRect()
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val rectLeft = rect.left
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val rectTop = rect.top
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var mouseX: Int = 0
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var mouseY: Int = 0
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var draw: Boolean = false
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document.setter("onmousemove") { arguments: ArrayList<JsValue> ->
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val event = MouseEvent(arguments[0])
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mouseX = event.getInt("clientX") - rectLeft
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mouseY = event.getInt("clientY") - rectTop
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if (mouseX < 0) mouseX = 0
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if (mouseX > 639) mouseX = 639
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if (mouseY < 0) mouseY = 0
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if (mouseY > 479) mouseY = 479
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}
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document.setter("onmousedown") {
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draw = true
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}
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document.setter("onmouseup") {
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draw = false
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}
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setInterval(10) {
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if (draw) {
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ctx.strokeStyle = "#222222"
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ctx.lineTo(mouseX, mouseY)
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ctx.stroke()
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} else {
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ctx.moveTo(mouseX, mouseY)
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ctx.stroke()
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}
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}
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}
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