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/*
* Copyright 2022 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.compose.ui.text
/**
* Provides configuration options for behavior compatibility for TextStyle.
*/
actual class PlatformTextStyle {
actual val spanStyle: PlatformSpanStyle?
actual val paragraphStyle: PlatformParagraphStyle?
constructor(
spanStyle: PlatformSpanStyle?,
paragraphStyle: PlatformParagraphStyle?
) {
this.spanStyle = spanStyle
this.paragraphStyle = paragraphStyle
}
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (other !is PlatformTextStyle) return false
if (paragraphStyle != other.paragraphStyle) return false
if (spanStyle != other.spanStyle) return false
return true
}
@Suppress("RedundantOverride")
override fun hashCode(): Int {
return super.hashCode()
}
}
internal actual fun createPlatformTextStyle(
spanStyle: PlatformSpanStyle?,
paragraphStyle: PlatformParagraphStyle?
): PlatformTextStyle {
return PlatformTextStyle(spanStyle, paragraphStyle)
}
/**
* Provides configuration options for behavior compatibility for SpanStyle.
*/
actual class PlatformParagraphStyle {
actual companion object {
actual val Default: PlatformParagraphStyle = PlatformParagraphStyle()
}
actual fun merge(other: PlatformParagraphStyle?): PlatformParagraphStyle {
return this
}
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (other !is PlatformParagraphStyle) return false
return true
}
@Suppress("RedundantOverride")
override fun hashCode(): Int {
return super.hashCode()
}
}
/**
* Provides configuration options for behavior compatibility for SpanStyle.
*/
actual class PlatformSpanStyle {
actual companion object {
actual val Default: PlatformSpanStyle = PlatformSpanStyle()
}
actual fun merge(other: PlatformSpanStyle?): PlatformSpanStyle {
return this
}
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (other !is PlatformSpanStyle) return false
return true
}
@Suppress("RedundantOverride")
override fun hashCode(): Int {
return super.hashCode()
}
}
/**
* Interpolate between two PlatformParagraphStyle's.
*
* This will not work well if the styles don't set the same fields.
*
* The [fraction] argument represents position on the timeline, with 0.0 meaning
* that the interpolation has not started, returning [start] (or something
* equivalent to [start]), 1.0 meaning that the interpolation has finished,
* returning [stop] (or something equivalent to [stop]), and values in between
* meaning that the interpolation is at the relevant point on the timeline
* between [start] and [stop]. The interpolation can be extrapolated beyond 0.0 and
* 1.0, so negative values and values greater than 1.0 are valid.
*/
actual fun lerp(
start: PlatformParagraphStyle,
stop: PlatformParagraphStyle,
fraction: Float
): PlatformParagraphStyle {
return start
}
/**
* Interpolate between two PlatformSpanStyle's.
*
* This will not work well if the styles don't set the same fields.
*
* The [fraction] argument represents position on the timeline, with 0.0 meaning
* that the interpolation has not started, returning [start] (or something
* equivalent to [start]), 1.0 meaning that the interpolation has finished,
* returning [stop] (or something equivalent to [stop]), and values in between
* meaning that the interpolation is at the relevant point on the timeline
* between [start] and [stop]. The interpolation can be extrapolated beyond 0.0 and
* 1.0, so negative values and values greater than 1.0 are valid.
*/
@ExperimentalTextApi
actual fun lerp(
start: PlatformSpanStyle,
stop: PlatformSpanStyle,
fraction: Float
): PlatformSpanStyle {
return start
}