IssueTracker

Project: platform/frameworks/support
Branch: androidx-main

commit a868604a9d5c8dd798c73884621fcbd36bfe7d0e
Author: Halil Ozercan <halilibo@google.com>
Date:   Wed Jun 01 15:20:20 2022

    Add alpha argument to TextStyle/SpanStyle and Paragraph/MultiParagraph paint calls with Brush.
   
    Only way to introduce transparency to Text that is drawn with a Brush has been creating the Brush with transparent values in the first place. Once the MultiParagraph object is created, it's been impossible to change the opacity of text without creating a new Brush instance during draw.
   
    New API adds an optional `alpha` argument in the range of [0, 1] to TextStyle and SpanStyle constructors and copy functions which accept Brush. Color variant should carry its alpha value in color's alpha channel. In fact, both TextStyle and SpanStyle return color's alpha from the new experimental alpha property.
   
    Fix: b/234117635
    Test: :ui:ui-text:cAT
    Test: :ui:ui-text:test
    Relnote: Add optional alpha parameter to Brush flavor of TextStyle and SpanStyle to modify opacity of the whole Text.
    Change-Id: Ic2facdfe451f6e0ec3d2961fb623ef30e4742e31

M       compose/ui/ui-text/src/androidMain/kotlin/androidx/compose/ui/text/platform/style/ShaderBrushSpan.android.kt
M       compose/ui/ui-text/api/restricted_current.txt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/style/TextDrawStyle.kt
M       compose/ui/ui-text/src/androidAndroidTest/kotlin/androidx/compose/ui/text/platform/SpannableExtensionsTest.kt
M       compose/ui/ui-text/src/androidAndroidTest/kotlin/androidx/compose/ui/text/platform/AndroidTextPaintTest.kt
M       compose/ui/ui-text/src/skikoMain/kotlin/androidx/compose/ui/text/platform/SkiaMultiParagraphDraw.skiko.kt
M       compose/ui/ui-text/src/androidMain/kotlin/androidx/compose/ui/text/platform/AndroidMultiParagraphDraw.kt
M       compose/ui/ui-text/src/androidMain/kotlin/androidx/compose/ui/text/platform/extensions/TextPaintExtensions.android.kt
M       compose/ui/ui-text/samples/src/main/java/androidx/compose/ui/text/samples/SpanStyleSamples.kt
M       compose/ui/ui-text/src/androidAndroidTest/kotlin/androidx/compose/ui/text/ParagraphIntegrationTest.kt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/TextStyle.kt
M       compose/ui/ui-text/src/androidMain/kotlin/androidx/compose/ui/text/platform/AndroidTextPaint.android.kt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/Paragraph.kt
M       compose/ui/ui-text/src/test/java/androidx/compose/ui/text/TextStyleLayoutAttributesTest.kt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/SpanStyle.kt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/TextPainter.kt
M       compose/ui/ui-text/src/test/java/androidx/compose/ui/text/SpanStyleTest.kt
M       compose/ui/ui-text/src/test/java/androidx/compose/ui/text/TextStyleTest.kt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/MultiParagraph.kt
M       compose/ui/ui-text/samples/src/main/java/androidx/compose/ui/text/samples/TextStyleSamples.kt
M       compose/ui/ui-text/src/commonMain/kotlin/androidx/compose/ui/text/platform/PlatformMultiParagraphDraw.kt
M       compose/ui/ui-text/src/androidAndroidTest/kotlin/androidx/compose/ui/text/TextTestExtensions.kt
M       compose/ui/ui-text/src/test/java/androidx/compose/ui/text/style/TextDrawStyleTest.kt
M       compose/ui/ui-text/api/public_plus_experimental_current.txt
M       compose/ui/ui-text/src/androidAndroidTest/kotlin/androidx/compose/ui/text/MultiParagraphIntegrationTest.kt
M       compose/ui/ui-text/src/androidMain/kotlin/androidx/compose/ui/text/platform/AndroidParagraph.android.kt
M       compose/ui/ui-text/api/current.txt
M       compose/ui/ui-text/src/androidMain/kotlin/androidx/compose/ui/text/platform/extensions/SpannableExtensions.android.kt

https://android-review.googlesource.com/2111707