tricrypt/tui/widget.go

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package tui
import (
"fmt"
"strings"
"git.qowevisa.me/Qowevisa/gotell/errors"
)
// func (w *widget) init(startX, startY, endX, endY int) error {
// width, height := UI.getSizes()
//
// return nil
// }
func (w *widget) init(config widgetConfig) error {
width, height := UI.getSizes()
if width == 0 {
return errors.WrapErr("width", errors.NOT_INIT)
}
if height == 0 {
return errors.WrapErr("height", errors.NOT_INIT)
}
var startRow, startCol int
// I guess I really has to do it that way bc go doesn't like my C style
// of writting `-2 * config.HasBorder` or `-2 * (config.HasBorder == true)`
var factorIfHasBorder int
if config.HasBorder {
factorIfHasBorder = 1
} else {
factorIfHasBorder = 0
}
if config.WidgetPosConfig.isGeneral() {
switch config.WidgetPosConfig {
case widgetPosGeneralCenter:
startCol = (width - len(config.Title)) / 2
startRow = (height - 3 - 2*factorIfHasBorder) / 2
case widgetPosGeneralLeftCenter:
startCol = 0
startRow = (height - 3 - 2*factorIfHasBorder) / 2
case widgetPosGeneralRightCenter:
startCol = (width - len(config.Title) - 2*factorIfHasBorder)
startRow = (height - 3 - 2*factorIfHasBorder) / 2
default:
return errors.WrapErr(fmt.Sprintf("config.WidgetPosConfig: %d :", config.WidgetPosConfig), errors.NOT_HANDLED)
}
}
snappedPair := tuiPointPair{
startCol: startCol,
startRow: startRow,
endCol: startCol + len(config.Title) + 2,
endRow: startRow + 5,
}
percentPair := tuiPointPair{
startCol: GetIntPercentFromData(snappedPair.startCol, width),
startRow: GetIntPercentFromData(snappedPair.startRow, height),
endCol: GetIntPercentFromData(snappedPair.endCol, width),
endRow: GetIntPercentFromData(snappedPair.endRow, height),
}
w.percentPair = percentPair
w.snappedPair = snappedPair
w.startupConfig = config
w.Input = config.Input
w.Handler = config.DataHandler
w.Data = config.Data
w.Title = config.Title
w.MinWidth = config.MinWidth
w.MinHeight = config.MinHeight
if w.MinWidth > len(config.Title) {
w.Width = w.MinWidth
} else {
if w.startupConfig.HasBorder {
w.Width = len(config.Title) + 2
} else {
w.Width = len(config.Title)
}
}
if config.HasBorder {
if config.MinHeight > 5 {
w.Height = config.MinHeight
} else {
w.Height = 5
}
}
w.Next = config.Next
w.Finale = config.Finale
w.FinaleData = config.FinaleData
return nil
}
func getBufForMovingCursorTo(row, col int) string {
return fmt.Sprintf("\033[%d;%dH", row, col)
}
func (w *widget) moveToNextLine() string {
w.row++
return getBufForMovingCursorTo(w.row, w.col)
}
func (w *widget) Draw() (widgetDraw, error) {
w.row = w.snappedPair.startRow
w.col = w.snappedPair.startCol
var buf string
title := w.startupConfig.Title
buf += getBufForMovingCursorTo(w.row, w.col)
if w.startupConfig.HasBorder {
buf += strings.Repeat("-", w.Width)
buf += w.moveToNextLine()
emptyLen := w.Width - len(title) - 2
firstHalf := (emptyLen) / 2
buf += fmt.Sprintf("|%s%s%s|",
strings.Repeat(" ", firstHalf),
title, strings.Repeat(" ",
emptyLen-firstHalf))
buf += w.moveToNextLine()
buf += strings.Repeat("-", w.Width)
buf += w.moveToNextLine()
buf += fmt.Sprintf("|%s%s|", string(*w.Input), strings.Repeat(" ", w.Width-2-len(*w.Input)))
buf += w.moveToNextLine()
buf += strings.Repeat("-", w.Width)
w.col++
w.row--
buf += getBufForMovingCursorTo(w.row, w.col)
} else {
buf += fmt.Sprintf("%s", title)
buf += w.moveToNextLine()
buf += strings.Repeat("-", w.Width)
buf += w.moveToNextLine()
buf += fmt.Sprintf("%s%s", string(*w.Input), strings.Repeat(" ", len(title)-len(*w.Input)))
buf += getBufForMovingCursorTo(w.row, w.col)
}
return widgetDraw{
Buf: buf,
Row: w.row,
Col: w.col,
}, nil
}
func (w *widget) Clear() string {
var buf string
w.row = w.snappedPair.startRow
w.col = w.snappedPair.startCol
title := w.startupConfig.Title
buf += getBufForMovingCursorTo(w.row, w.col)
if w.startupConfig.HasBorder {
buf += strings.Repeat(" ", w.Width)
buf += w.moveToNextLine()
buf += strings.Repeat(" ", w.Width)
buf += w.moveToNextLine()
buf += strings.Repeat(" ", w.Width)
buf += w.moveToNextLine()
maxClearInpLen := len(*w.Input) + 2
if w.Width > maxClearInpLen {
maxClearInpLen = w.Width
}
buf += fmt.Sprintf("%s", strings.Repeat(" ", maxClearInpLen))
buf += w.moveToNextLine()
buf += strings.Repeat(" ", w.Width)
w.row++
w.col--
buf += getBufForMovingCursorTo(0, 0)
} else {
buf += fmt.Sprintf("%s", strings.Repeat(" ", len(title)))
buf += w.moveToNextLine()
buf += strings.Repeat(" ", w.Width)
buf += w.moveToNextLine()
maxClearInpLen := len(*w.Input)
if w.Width > maxClearInpLen {
maxClearInpLen = w.Width
}
buf += fmt.Sprintf("%s", strings.Repeat(" ", maxClearInpLen))
buf += getBufForMovingCursorTo(0, 0)
}
return buf
}