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/*
* Copyright lt 2023
*
* 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 com.lt.compose_views.util
import androidx.compose.ui.graphics.Color
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.InvocationKind
import kotlin.contracts.contract
/**
* creator: lt 2022/6/27 [email protected]
* effect : 工具类或扩展方法
* warning:
*/
/**
* 获取居中的值
*/
internal fun midOf(min: Int, number: Int, max: Int): Int = maxOf(min, minOf(number, max))
internal fun midOf(min: Float, number: Float, max: Float): Float = maxOf(min, minOf(number, max))
/**
* 根据this的百分比(0-1或1-0)来计算start到end对应的值,并返回
*/
internal fun Float/*percentage*/.getPercentageValue(startValue: Float, endValue: Float): Float =
if (startValue == endValue) startValue
else (endValue - startValue) * this + startValue
internal fun Float/*percentage*/.getPercentageValue(startValue: Color, endValue: Color): Color =
Color(
alpha = getPercentageValue(startValue.alpha, endValue.alpha),
red = getPercentageValue(startValue.red, endValue.red),
green = getPercentageValue(startValue.green, endValue.green),
blue = getPercentageValue(startValue.blue, endValue.blue),
)
/**
* 如果[useBlock]为true则返回[block]的返回值,否则返回this
*/
@OptIn(ExperimentalContracts::class)
internal inline fun T.runIf(useBlock: Boolean, block: T.() -> T): T {
contract {
callsInPlace(block, InvocationKind.AT_MOST_ONCE)
}
return if (useBlock) block(this) else this
}
@OptIn(ExperimentalContracts::class)
internal inline fun T.letIf(useBlock: Boolean, block: (T) -> T): T {
contract {
callsInPlace(block, InvocationKind.AT_MOST_ONCE)
}
return if (useBlock) block(this) else this
}
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