48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
// gomuks - A terminal Matrix client written in Go.
|
|
// Copyright (C) 2018 Tulir Asokan
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package widget
|
|
|
|
import (
|
|
"github.com/gdamore/tcell"
|
|
"github.com/mattn/go-runewidth"
|
|
"maunium.net/go/tview"
|
|
)
|
|
|
|
func writeLine(screen tcell.Screen, align int, line string, x, y, maxWidth int, color tcell.Color) {
|
|
offsetX := 0
|
|
if align == tview.AlignRight {
|
|
offsetX = maxWidth - runewidth.StringWidth(line)
|
|
}
|
|
if offsetX < 0 {
|
|
offsetX = 0
|
|
}
|
|
for _, ch := range line {
|
|
chWidth := runewidth.RuneWidth(ch)
|
|
if chWidth == 0 {
|
|
continue
|
|
}
|
|
|
|
for localOffset := 0; localOffset < chWidth; localOffset++ {
|
|
screen.SetContent(x+offsetX+localOffset, y, ch, nil, tcell.StyleDefault.Foreground(color))
|
|
}
|
|
offsetX += chWidth
|
|
if offsetX > maxWidth {
|
|
break
|
|
}
|
|
}
|
|
}
|