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/*
* Copyright 2018 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.android.style
import android.graphics.Paint
import android.graphics.Typeface
import android.text.TextPaint
import android.text.style.MetricAffectingSpan
import androidx.compose.ui.text.android.InternalPlatformTextApi
/**
* Span that displays text in the given Typeface. In Android Framework, TypefaceSpan that accepts
* a Typeface as constructor argument was added in API 28, therefore was not usable before 28.
*
* @constructor Constructs a [android.text.style.TypefaceSpan] from a [Typeface]. The previous
* style of the TextPaint is overridden and the style of the typeface is used.
* @param typeface Typeface to render the text with.
*
* @suppress
*/
@InternalPlatformTextApi
class TypefaceSpan(val typeface: Typeface) : MetricAffectingSpan() {
override fun updateDrawState(ds: TextPaint) {
updateTypeface(ds)
}
override fun updateMeasureState(paint: TextPaint) {
updateTypeface(paint)
}
private fun updateTypeface(paint: Paint) {
paint.typeface = typeface
}
}