AndroidFontUtils.android.kt
/*
* Copyright 2021 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.font
import android.graphics.Typeface
import androidx.annotation.DoNotInline
import androidx.annotation.RequiresApi
internal val FontWeight.Companion.AndroidBold
get() = W600
/**
* Lookup style used by [android.graphics.Typeface].
*
* May return one of:
* - [Typeface.BOLD_ITALIC]
* - [Typeface.BOLD]
* - [Typeface.ITALIC]
* - [Typeface.NORMAL]
*/
internal fun getAndroidTypefaceStyle(fontWeight: FontWeight, fontStyle: FontStyle): Int {
val isBold = fontWeight >= FontWeight.AndroidBold
val isItalic = fontStyle == FontStyle.Italic
return getAndroidTypefaceStyle(isBold, isItalic)
}
/**
* Lookup android typeface style without requiring a [FontWeight] or [FontStyle] object.
*
* May return one of:
* - [Typeface.BOLD_ITALIC]
* - [Typeface.BOLD]
* - [Typeface.ITALIC]
* - [Typeface.NORMAL]
*/
internal fun getAndroidTypefaceStyle(isBold: Boolean, isItalic: Boolean): Int {
return if (isItalic && isBold) {
Typeface.BOLD_ITALIC
} else if (isBold) {
Typeface.BOLD
} else if (isItalic) {
Typeface.ITALIC
} else {
Typeface.NORMAL
}
}
/**
* This class is here to ensure that the classes that use this API will get verified and can be
* AOT compiled. It is expected that this class will soft-fail verification, but the classes
* which use this method will pass.
*/
@RequiresApi(28)
internal object TypefaceHelperMethodsApi28 {
@RequiresApi(28)
@DoNotInline
fun create(typeface: Typeface, finalFontWeight: Int, finalFontStyle: Boolean) =
Typeface.create(typeface, finalFontWeight, finalFontStyle)
}