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Create ignoreLines map on demand

This commit is contained in:
Christian Rocha 2020-06-18 12:19:36 -04:00
parent 902225116c
commit 83e41c15b1
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GPG Key ID: D6CC7A16E5878018
1 changed files with 5 additions and 3 deletions
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8
renderer.go
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@ -167,6 +167,9 @@ func (r *renderer) write(s string) {
// setIngoredLines speicifies lines not to be touched by the standard Bubble Tea
// renderer.
func (r *renderer) setIgnoredLines(from int, to int) {
if r.ignoreLines == nil {
r.ignoreLines = make(map[int]struct{})
}
for i := from; i < to; i++ {
r.ignoreLines[i] = struct{}{}
}
@ -176,7 +179,7 @@ func (r *renderer) setIgnoredLines(from int, to int) {
// Tea renderer. Any lines previously set to be ignored can be rendered to
// again.
func (r *renderer) clearIgnoredLines() {
r.ignoreLines = make(map[int]struct{})
r.ignoreLines = nil
}
// insertTop effectively scrolls up. It inserts lines at the top of a given
@ -239,8 +242,7 @@ func (r *renderer) insertBottom(lines []string, topBoundary, bottomBoundary int)
r.out.Write(b.Bytes())
}
// handleMessages handles internal messages for the renderer. It belongs in the
// main update loop at the program level.
// handleMessages handles internal messages for the renderer.
func (r *renderer) handleMessages(msg Msg) {
switch msg := msg.(type) {
case WindowSizeMsg: