github/atom
1
1
Fork 0
mirror of https://github.com/atom/atom.git synced 2026-04-06 03:02:13 -04:00
Code Issues Packages Projects Releases Wiki Activity

Implement special options for line and line number decorations

Browse Source 
* onlyEmpty
* onlyNonEmpty
* onlyHead
* omitEmptyLastLine
This commit is contained in:
Nathan Sobo
2017-03-06 14:54:21 -07:00
committed by Antonio Scandurra
parent ff325c0151
commit 09f8a52b9d
3 changed files with 97 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
src/text-editor-component.js
View File

@@ -424,30 +424,48 @@ class TextEditorComponent {
const reversed = marker.isReversed()
for (let i = 0, length = decorations.length; i < decorations.length; i++) {
const decoration = decorations[i]
this.addToDecorationsToRender(decoration.type, decoration, screenRange, reversed)
this.addDecorationToRender(decoration.type, decoration, screenRange, reversed)
}
})
}
addToDecorationsToRender (type, decoration, screenRange, reversed) {
addDecorationToRender (type, decoration, screenRange, reversed) {
if (Array.isArray(type)) {
for (let i = 0, length = type.length; i < length; i++) {
this.addToDecorationsToRender(type[i], decoration, screenRange, reversed)
this.addDecorationToRender(type[i], decoration, screenRange, reversed)
}
} else {
switch (type) {
case 'line-number':
for (let row = screenRange.start.row; row <= screenRange.end.row; row++) {
const currentClassName = this.decorationsToRender.lineNumbers.get(row)
const newClassName = currentClassName ? currentClassName + ' ' + decoration.class : decoration.class
this.decorationsToRender.lineNumbers.set(row, newClassName)
}
break
case 'line':
for (let row = screenRange.start.row; row <= screenRange.end.row; row++) {
const currentClassName = this.decorationsToRender.lines.get(row)
case 'line-number':
const decorationsByRow = (type === 'line') ? this.decorationsToRender.lines : this.decorationsToRender.lineNumbers
let omitLastRow = false
if (screenRange.isEmpty()) {
if (decoration.onlyNonEmpty) return
} else {
if (decoration.onlyEmpty) return
if (decoration.omitEmptyLastRow !== false) {
omitLastRow = screenRange.end.column === 0
}
}
let startRow = screenRange.start.row
let endRow = screenRange.end.row
if (decoration.onlyHead) {
if (reversed) {
endRow = startRow
} else {
startRow = endRow
}
}
for (let row = startRow; row <= endRow; row++) {
if (omitLastRow && row === endRow) break
const currentClassName = decorationsByRow.get(row)
const newClassName = currentClassName ? currentClassName + ' ' + decoration.class : decoration.class
this.decorationsToRender.lines.set(row, newClassName)
decorationsByRow.set(row, newClassName)
}
break
}