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Add command to sync initial high performance view

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This commit is contained in:
Christian Rocha 2020-06-18 13:41:23 -04:00
parent 3688351ddf
commit 5572542e2e
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GPG Key ID: D6CC7A16E5878018
2 changed files with 12 additions and 13 deletions
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4
viewport/renderer.go
View File

@ -84,10 +84,6 @@ func cursorDown(w io.Writer, numLines int) {
fmt.Fprintf(w, te.CSI+te.CursorDownSeq, numLines)
}
func cursorDownString(numLines int) string {
return fmt.Sprintf(te.CSI+te.CursorDownSeq, numLines)
}
func clearLine(w io.Writer) {
fmt.Fprintf(w, te.CSI+te.EraseLineSeq, 2)
}

21
viewport/viewport.go
View File

@ -1,9 +1,11 @@
package viewport
import (
"fmt"
"strings"
tea "github.com/charmbracelet/bubbletea"
te "github.com/muesli/termenv"
)
// MODEL
@ -67,16 +69,11 @@ func (m Model) ScrollPercent() float64 {
return y / (t - h)
}
// SetContent set the pager's text content.
// SetContent set the pager's text content. For high performance rendering the
// Sync command should also be called.
func (m *Model) SetContent(s string) {
s = strings.Replace(s, "\r\n", "\n", -1) // normalize line endings
m.lines = strings.Split(s, "\n")
if m.HighPerformanceRendering {
//top := max(m.YOffset, 0)
//bottom := min(m.YOffset+m.Height, len(m.lines))
//m.r.sync(m.lines[top:bottom])
}
}
// ViewDown moves the view down by the number of lines in the viewport.
@ -152,7 +149,13 @@ func (m *Model) LineUp(n int) {
// COMMANDS
func Sync(m Model) tea.Cmd {
return tea.ReplaceIgnoredLines(m.YPosition, m.YPosition+m.Height)
top := clamp(m.YOffset, 0, len(m.lines))
bottom := clamp(m.YOffset+m.Height, 0, len(m.lines))
return tea.SyncScrollArea(
m.lines[top:bottom],
m.YPosition,
m.YPosition+m.Height,
)
}
func ViewDown(m Model) tea.Cmd {
@ -326,7 +329,7 @@ func View(m Model) string {
if m.HighPerformanceRendering {
// Skip over the area that would normally be rendered
return cursorDownString(m.Height)
return fmt.Sprintf(te.CSI+te.CursorDownSeq, m.Height)
}
if m.Err != nil {