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// Copyright 2019-2022 Graham Clark. All rights reserved. Use of this source
// code is governed by the MIT license that can be found in the LICENSE
// file.
// Package fill provides a widget that can be filled with a styled rune.
package fill
import (
"fmt"
"github.com/gcla/gowid"
)
//======================================================================
type ISolidFill interface {
Cell() gowid.Cell
}
type IWidget interface {
gowid.IWidget
ISolidFill
}
type Widget struct {
cell gowid.Cell
gowid.RejectUserInput
gowid.NotSelectable
}
func New(chr rune) *Widget {
res := &Widget{cell: gowid.CellFromRune(chr)}
var _ gowid.IWidget = res
return res
}
func NewEmpty() *Widget {
return NewSolidFromCell(gowid.Cell{})
}
func NewSolidFromCell(cell gowid.Cell) *Widget {
res := &Widget{cell: cell}
var _ gowid.IWidget = res
return res
}
func (w *Widget) String() string {
r := ' '
if w.Cell().HasRune() {
r = w.Cell().Rune()
}
return fmt.Sprintf("fill[%c]", r)
}
func (w *Widget) Cell() gowid.Cell {
return w.cell
}
func (w *Widget) SetCell(c gowid.Cell, app gowid.IApp) {
w.cell = c
}
func (w *Widget) RenderSize(size gowid.IRenderSize, focus gowid.Selector, app gowid.IApp) gowid.IRenderBox {
return RenderSize(w, size, focus, app)
}
func (w *Widget) Render(size gowid.IRenderSize, focus gowid.Selector, app gowid.IApp) gowid.ICanvas {
return Render(w, size, focus, app)
}
//''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
func RenderSize(w interface{}, size gowid.IRenderSize, focus gowid.Selector, app gowid.IApp) gowid.IRenderBox {
cols, haveCols := size.(gowid.IColumns)
rows, haveRows := size.(gowid.IRows)
switch {
case haveCols && haveRows:
return gowid.RenderBox{C: cols.Columns(), R: rows.Rows()}
case haveCols:
return gowid.RenderBox{C: cols.Columns(), R: 1}
default:
panic(gowid.WidgetSizeError{Widget: w, Size: size})
}
}
func Render(w ISolidFill, size gowid.IRenderSize, focus gowid.Selector, app gowid.IApp) gowid.ICanvas {
// If a col and row not provided, what can I choose??
cols2, ok := size.(gowid.IColumns)
if !ok {
panic(gowid.WidgetSizeError{Widget: w, Size: size, Required: "gowid.IColumns"})
}
cols := cols2.Columns()
rows := 1
if irows, ok2 := size.(gowid.IRows); ok2 {
rows = irows.Rows()
}
fill := w.Cell()
fillArr := make([]gowid.Cell, cols)
for i := 0; i < cols; i++ {
fillArr[i] = fill
}
res := gowid.NewCanvas()
if rows > 0 {
res.AppendLine(fillArr, false)
for i := 0; i < rows-1; i++ {
res.Lines = append(res.Lines, make([]gowid.Cell, 0, 120))
}
}
res.AlignRightWith(w.Cell())
return res
}
//======================================================================
// Local Variables:
// mode: Go
// fill-column: 110
// End:
|
