Benoit Marty
5 months ago
1 changed files with 61 additions and 0 deletions
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/* |
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* Copyright (c) 2024 New Vector Ltd |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package io.element.android.libraries.designsystem.background |
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import androidx.compose.foundation.background |
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import androidx.compose.foundation.layout.Box |
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import androidx.compose.foundation.layout.fillMaxSize |
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import androidx.compose.runtime.Composable |
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import androidx.compose.runtime.remember |
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import androidx.compose.ui.Modifier |
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import androidx.compose.ui.geometry.Size |
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import androidx.compose.ui.geometry.center |
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import androidx.compose.ui.graphics.Color |
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import androidx.compose.ui.graphics.RadialGradientShader |
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import androidx.compose.ui.graphics.Shader |
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import androidx.compose.ui.graphics.ShaderBrush |
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import io.element.android.libraries.designsystem.preview.ElementPreview |
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import io.element.android.libraries.designsystem.preview.PreviewsDayNight |
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class LightGradientBackground( |
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private val firstColor: Color = Color(0x1E0DBD8B), |
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private val secondColor: Color = Color(0x001273EB), |
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private val ratio: Float = 642 / 775f, |
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) : ShaderBrush() { |
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override fun createShader(size: Size): Shader { |
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val biggerDimension = size.width * 1.98f |
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return RadialGradientShader( |
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colors = listOf(firstColor, secondColor), |
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center = size.center.copy(x = size.width * ratio, y = size.height * ratio), |
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radius = biggerDimension / 2f, |
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colorStops = listOf(0f, 0.95f) |
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) |
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} |
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} |
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@PreviewsDayNight |
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@Composable |
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internal fun LightGradientBackgroundPreview() = ElementPreview { |
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val gradientBackground = remember { |
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LightGradientBackground() |
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} |
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Box( |
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modifier = Modifier |
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.fillMaxSize() |
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.background(gradientBackground) |
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) |
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} |
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