| /* |
| * 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.foundation.samples |
| |
| import androidx.annotation.Sampled |
| import androidx.compose.Composable |
| import androidx.compose.remember |
| import androidx.ui.core.Modifier |
| import androidx.ui.foundation.Canvas |
| import androidx.ui.foundation.Canvas2 |
| import androidx.ui.geometry.Offset |
| import androidx.ui.geometry.toRect |
| import androidx.ui.graphics.Color |
| import androidx.ui.graphics.Paint |
| import androidx.ui.graphics.painter.CanvasScope |
| import androidx.ui.graphics.painter.Stroke |
| import androidx.ui.graphics.painter.inset |
| import androidx.ui.layout.preferredSize |
| import androidx.ui.unit.dp |
| |
| @Sampled |
| @Composable |
| @Suppress("DEPRECATION") |
| @Deprecated("Prefer usage of Canvas2", ReplaceWith("Canvas2Sample")) |
| fun CanvasSample() { |
| val paint = remember { Paint().apply { color = Color.Magenta } } |
| Canvas(modifier = Modifier.preferredSize(100.dp)) { |
| drawRect(size.toRect(), paint) |
| } |
| } |
| |
| /** |
| * Sample showing how to create a composable that supports issuing |
| * drawing commands through a [CanvasScope] |
| */ |
| @Sampled |
| @Composable |
| fun Canvas2Sample() { |
| Canvas2(modifier = Modifier.preferredSize(20.dp)) { |
| drawRect(color = Color.White) |
| inset(10.0f) { |
| drawLine( |
| p1 = Offset.zero, |
| p2 = Offset(size.width, size.height), |
| stroke = Stroke(width = 5.0f), |
| color = Color.Red |
| ) |
| } |
| } |
| } |