| /* |
| * Copyright 2019 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.foundation.text.demos |
| |
| import androidx.compose.Composable |
| import androidx.compose.foundation.ScrollableColumn |
| import androidx.compose.foundation.Text |
| import androidx.compose.ui.text.AnnotatedString |
| import androidx.compose.ui.text.ParagraphStyle |
| import androidx.compose.ui.text.TextStyle |
| import androidx.compose.ui.text.annotatedString |
| import androidx.compose.ui.text.style.TextAlign |
| import androidx.compose.ui.text.style.TextIndent |
| import androidx.compose.ui.text.withStyle |
| import androidx.ui.unit.sp |
| |
| val lorem = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas fermentum non" + |
| " diam sed pretium." |
| |
| @Composable |
| fun MultiParagraphDemo() { |
| ScrollableColumn { |
| TagLine(tag = "multiple paragraphs basic") |
| TextDemoParagraph() |
| TagLine(tag = "multiple paragraphs TextAlign") |
| TextDemoParagraphTextAlign() |
| TagLine(tag = "multiple paragraphs line height") |
| TextDemoParagraphLineHeight() |
| TagLine(tag = "multiple paragraphs TextIndent") |
| TextDemoParagraphIndent() |
| TagLine(tag = "multiple paragraphs TextDirection") |
| TextDemoParagraphTextDirection() |
| } |
| } |
| |
| @Composable |
| fun TextDemoParagraph() { |
| val text1 = "paragraph1 paragraph1 paragraph1 paragraph1 paragraph1" |
| val text2 = "paragraph2 paragraph2 paragraph2 paragraph2 paragraph2" |
| Text( |
| text = annotatedString { |
| append(text1) |
| withStyle(ParagraphStyle()) { |
| append(text2) |
| } |
| }, |
| style = TextStyle(fontSize = fontSize6) |
| ) |
| } |
| |
| @Composable |
| fun TextDemoParagraphTextAlign() { |
| val annotatedString = annotatedString { |
| TextAlign.values().forEach { textAlign -> |
| val str = List(4) { "TextAlign.$textAlign" }.joinToString(" ") |
| withStyle(ParagraphStyle(textAlign = textAlign)) { |
| append(str) |
| } |
| } |
| } |
| |
| Text(text = annotatedString, style = TextStyle(fontSize = fontSize6)) |
| } |
| |
| @Composable |
| fun TextDemoParagraphLineHeight() { |
| val text1 = "LineHeight=30sp: $lorem" |
| val text2 = "LineHeight=40sp: $lorem" |
| val text3 = "LineHeight=50sp: $lorem" |
| |
| Text( |
| text = AnnotatedString( |
| text = text1 + text2 + text3, |
| spanStyles = listOf(), |
| paragraphStyles = listOf( |
| AnnotatedString.Range( |
| ParagraphStyle(lineHeight = 30.sp), |
| 0, |
| text1.length |
| ), |
| AnnotatedString.Range( |
| ParagraphStyle(lineHeight = 40.sp), |
| text1.length, |
| text1.length + text2.length |
| ), |
| AnnotatedString.Range( |
| ParagraphStyle(lineHeight = 50.sp), |
| text1.length + text2.length, |
| text1.length + text2.length + text3.length |
| ) |
| ) |
| ), |
| style = TextStyle(fontSize = fontSize6) |
| ) |
| } |
| |
| @Composable |
| fun TextDemoParagraphIndent() { |
| val text1 = "TextIndent firstLine TextIndent firstLine TextIndent firstLine" |
| val text2 = "TextIndent restLine TextIndent restLine TextIndent restLine" |
| |
| Text( |
| text = annotatedString { |
| withStyle(ParagraphStyle(textIndent = TextIndent(firstLine = 20.sp))) { |
| append(text1) |
| } |
| withStyle(ParagraphStyle(textIndent = TextIndent(restLine = 20.sp))) { |
| append(text2) |
| } |
| }, |
| style = TextStyle(fontSize = fontSize6) |
| ) |
| } |
| |
| @Composable |
| fun TextDemoParagraphTextDirection() { |
| val ltrText = "Hello World! Hello World! Hello World! Hello World! Hello World!" |
| val rtlText = "مرحبا بالعالم مرحبا بالعالم مرحبا بالعالم مرحبا بالعالم مرحبا بالعالم" |
| Text( |
| text = annotatedString { |
| withStyle(ParagraphStyle()) { |
| append(ltrText) |
| } |
| withStyle(ParagraphStyle()) { |
| append(rtlText) |
| } |
| }, |
| style = TextStyle(fontSize = fontSize6) |
| ) |
| } |