| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.ui.core |
| |
| import androidx.ui.geometry.Size |
| import androidx.ui.graphics.Canvas |
| import androidx.ui.graphics.painter.drawCanvas |
| |
| internal class ModifiedDrawNode( |
| wrapped: LayoutNodeWrapper, |
| drawModifier: DrawModifier |
| ) : DelegatingLayoutNodeWrapper<DrawModifier>(wrapped, drawModifier) { |
| private val drawScope = DrawScopeImpl() |
| |
| // This is not thread safe |
| override fun draw(canvas: Canvas) { |
| withPositionTranslation(canvas) { |
| val size = Size( |
| measuredSize.width.value.toFloat(), |
| measuredSize.height.value.toFloat() |
| ) |
| drawScope.draw(canvas, size) { |
| with(drawScope) { |
| with(modifier) { |
| draw() |
| } |
| } |
| } |
| } |
| } |
| |
| inner class DrawScopeImpl() : ContentDrawScope() { |
| override fun drawContent() { |
| drawCanvas { canvas, _ -> |
| wrapped.draw(canvas) |
| } |
| } |
| |
| override val density: Float |
| get() = layoutNode.requireOwner().density.density |
| |
| override val fontScale: Float |
| get() = layoutNode.requireOwner().density.fontScale |
| |
| override val layoutDirection: LayoutDirection |
| get() = this@ModifiedDrawNode.measureScope.layoutDirection |
| } |
| } |