| /* |
| * 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.graphics.drawscope |
| |
| import androidx.ui.core.LayoutDirection |
| import androidx.ui.geometry.Size |
| import androidx.ui.graphics.Canvas |
| import androidx.ui.graphics.ColorFilter |
| import androidx.ui.graphics.painter.Painter |
| |
| /** |
| * TestDrawScope implementation with default values for density and layout direction |
| */ |
| class TestDrawScope() : DrawScope() { |
| override var layoutDirection: LayoutDirection = LayoutDirection.Ltr |
| |
| override var density: Float = 1.0f |
| |
| override var fontScale: Float = 1.0f |
| |
| fun drawInto(canvas: Canvas, size: Size, block: DrawScope.() -> Unit) { |
| draw(canvas, size, block) |
| } |
| } |
| |
| /** |
| * Helper method that draws a Painter into the given canvas, automatically creating a DrawScope |
| * to do so with |
| */ |
| fun drawPainter( |
| painter: Painter, |
| canvas: Canvas, |
| size: Size, |
| alpha: Float = 1.0f, |
| colorFilter: ColorFilter? = null, |
| layoutDirection: LayoutDirection = LayoutDirection.Ltr |
| ) { |
| TestDrawScope().apply { this.layoutDirection = layoutDirection }.drawInto(canvas, size) { |
| with (painter) { |
| draw(size, alpha = alpha, colorFilter = colorFilter) |
| } |
| } |
| } |