A Kotlin DSL and Java/Kotlin builder API for constructing HTML-like tables which can be rendered to text.
Features:
- Borders (with multiple styles)
- Padding (left/right/top/bottom)
- Per-table, row, and cell styling
- Header/footer sections
- Row/column spans
- Text alignment
DSL:
table {
row("Hello", "World")
row("Hola", "Mundo")
}HelloWorld
Hola Mundo
Very underwhelming! Picnic tables start completely unstyled by design.
Jump to a real-world example or continue reading for individual features.
(Note: these examples do not render correctly on mobile)
table {
cellStyle {
// These options affect the style of all cells contained within the table.
border = true
}
row("Hello", "World")
row("Hola", "Mundo")
}┌─────┬─────┐
│Hello│World│
├─────┼─────┤
│Hola │Mundo│
└─────┴─────┘
table {
style {
// Unlike cellStyle, these options affect the style of the table itself.
borderStyle = Hidden
}
cellStyle {
border = true
}
row("Hello", "World")
row("Hola", "Mundo")
}Hello│World
─────┼─────
Hola │Mundo
table {
cellStyle {
border = true
paddingLeft = 1
paddingRight = 1
}
row("Hello", "World")
row("Hola", "Mundo")
}┌───────┬───────┐
│ Hello │ World │
├───────┼───────┤
│ Hola │ Mundo │
└───────┴───────┘
table {
cellStyle {
border = true
paddingLeft = 1
paddingRight = 1
}
row {
cellStyle {
// These options affect only the cells contained within this row and override table options.
paddingTop = 1
}
cell("Hello")
cell("World")
}
row {
cell("Hola")
cell("Mundo") {
// These options affect only this specific cell and override row and table options.
border = false
}
}
}┌───────┬───────┐
│ │ │
│ Hello │ World │
├───────┼───────┘
│ Hola │ Mundo
└───────┘
table {
header {
// Rows in a header always come first no matter when they're added.
row("Hello", "Header")
}
footer {
// Rows in a footer always come last no matter when they're added.
row("Hello", "Footer")
}
row("Hello", "World")
cellStyle {
border = true
}
}┌─────┬──────┐
│Hello│Header│
├─────┼──────┤
│Hello│World │
├─────┼──────┤
│Hello│Footer│
└─────┴──────┘
table {
cellStyle {
border = true
}
row {
cell("Hello") {
rowSpan = 2
}
cell("World")
}
// This row has only one cell because "Hello" will carry over and push it to the right.
row("Mars")
// This row has only one cell because it spans two columns.
row {
cell("Hola Mundo") {
columnSpan = 2
}
}
}┌─────┬─────┐
│Hello│World│
│ ├─────┤
│ │Mars │
├─────┴─────┤
│Hola Mundo │
└───────────┘
table {
cellStyle {
border = true
alignment = TopCenter
}
row {
cell("Hello") {
rowSpan = 4
alignment = MiddleLeft
}
cell("Mercury")
}
row("Venus")
row("Earth")
row("Mars")
row {
cell("Hola") {
rowSpan = 4
alignment = MiddleLeft
}
cell("Jupiter")
}
row("Saturn")
row("Uranus")
row("Neptune")
row("Adios", "Pluto")
}┌─────┬───────┐
│ │Mercury│
│ ├───────┤
│ │ Venus │
│Hello├───────┤
│ │ Earth │
│ ├───────┤
│ │ Mars │
├─────┼───────┤
│ │Jupiter│
│ ├───────┤
│ │Saturn │
│Hola ├───────┤
│ │Uranus │
│ ├───────┤
│ │Neptune│
├─────┼───────┤
│Adios│ Pluto │
└─────┴───────┘
Here is a more advanced, real-world example from the Diffuse tool. It features row and column spans, headers and footers, borders, table border style, padding, and text alignment.
table {
style {
borderStyle = Hidden
}
cellStyle {
alignment = MiddleRight
paddingLeft = 1
paddingRight = 1
borderLeft = true
borderRight = true
}
header {
cellStyle {
border = true
alignment = BottomLeft
}
row {
cell("APK") {
rowSpan = 2
}
cell("compressed") {
alignment = BottomCenter
columnSpan = 3
}
cell("uncompressed") {
alignment = BottomCenter
columnSpan = 3
}
}
row("old", "new", "diff", "old", "new", "diff")
}
body {
row("dex", "664.8 KiB", "664.8 Kib", "-25 B", "1.5 MiB", "1.5 MiB", "-112 B")
// "arsc", "manifest", etc…
}
footer {
cellStyle {
border = true
}
row("total", "1.3 MiB", "1.3 MiB", "-39 B", "2.2 MiB", "2.2 MiB", "-112 B")
}
} │ compressed │ uncompressed
├───────────┬───────────┬───────┼───────────┬───────────┬────────
APK │ old │ new │ diff │ old │ new │ diff
──────────┼───────────┼───────────┼───────┼───────────┼───────────┼────────
dex │ 664.8 KiB │ 664.8 KiB │ -25 B │ 1.5 MiB │ 1.5 MiB │ -112 B
arsc │ 201.7 KiB │ 201.7 KiB │ 0 B │ 201.6 KiB │ 201.6 KiB │ 0 B
manifest │ 1.4 KiB │ 1.4 KiB │ 0 B │ 4.2 KiB │ 4.2 KiB │ 0 B
res │ 418.2 KiB │ 418.2 KiB │ -14 B │ 488.3 KiB │ 488.3 KiB │ 0 B
asset │ 0 B │ 0 B │ 0 B │ 0 B │ 0 B │ 0 B
other │ 37.1 KiB │ 37.1 KiB │ 0 B │ 36.3 KiB │ 36.3 KiB │ 0 B
──────────┼───────────┼───────────┼───────┼───────────┼───────────┼────────
total │ 1.3 MiB │ 1.3 MiB │ -39 B │ 2.2 MiB │ 2.2 MiB │ -112 B
repositories {
mavenCentral()
}
dependencies {
implementation 'com.jakewharton.picnic:picnic:0.7.0'
}Snapshots of the development version are available in Sonatype's snapshots repository.
repositories {
maven {
url 'https://oss.sonatype.org/content/repositories/snapshots/'
}
}
dependencies {
implementation 'com.jakewharton.picnic:picnic:0.8.0-SNAPSHOT'
}Copyright 2015 Jake Wharton
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.
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