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Extract method for drawing placeholder rows
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This commit is contained in:
Timothy Warren 2021-03-31 09:28:39 -04:00
parent c0d5436c35
commit 2203e30b18
1 changed files with 25 additions and 21 deletions
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26
editor/draw.go
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@ -28,6 +28,21 @@ func (e *editor) RefreshScreen() {
func (e *editor) drawRows(ab *buffer) { func (e *editor) drawRows(ab *buffer) {
for y :=0; y < e.screen.Rows; y++ { for y :=0; y < e.screen.Rows; y++ {
if y >= len(e.rows) { if y >= len(e.rows) {
e.drawPlaceholderRow(y, ab)
} else {
row := truncateString(string(e.rows[y].chars), e.screen.Cols)
ab.append(row)
}
ab.append(terminal.ClearLine)
if y < (e.screen.Rows - 1) {
ab.append("\r\n")
}
}
}
func (e *editor) drawPlaceholderRow(y int, ab *buffer) {
if len(e.rows) == 0 && y == e.screen.Rows / 3 { if len(e.rows) == 0 && y == e.screen.Rows / 3 {
welcome := fmt.Sprintf("Gilo editor -- version %s", KiloVersion) welcome := fmt.Sprintf("Gilo editor -- version %s", KiloVersion)
if len(welcome) > e.screen.Cols { if len(welcome) > e.screen.Cols {
@ -49,17 +64,6 @@ func (e *editor) drawRows(ab *buffer) {
} else { } else {
ab.appendRune('~') ab.appendRune('~')
} }
} else {
row := truncateString(string(e.rows[y].chars), e.screen.Cols)
ab.append(row)
}
ab.append(terminal.ClearLine)
if y < (e.screen.Rows - 1) {
ab.append("\r\n")
}
}
} }
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------