7aed750f64
Merge https://github.com/Matt3o12/termui.git colored-list Merge https://github.com/funkygao/termui.git master Add subdir widget Use image Rectangle represent buffer area
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
// +build ignore
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// Copyright 2015 Zack Guo <gizak@icloud.com>. All rights reserved.
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// Use of this source code is governed by a MIT license that can
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// be found in the LICENSE file.
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package termui
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// Par displays a paragraph.
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/*
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par := termui.NewPar("Simple Text")
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par.Height = 3
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par.Width = 17
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par.Border.Label = "Label"
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*/
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type Par struct {
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Block
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Text string
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TextFgColor Attribute
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TextBgColor Attribute
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RendererFactory TextRendererFactory
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}
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// NewPar returns a new *Par with given text as its content.
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func NewPar(s string) *Par {
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return &Par{
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Block: *NewBlock(),
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Text: s,
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TextFgColor: theme.ParTextFg,
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TextBgColor: theme.ParTextBg,
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RendererFactory: PlainRendererFactory{},
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}
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}
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// Buffer implements Bufferer interface.
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func (p *Par) Buffer() []Point {
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ps := p.Block.Buffer()
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fg, bg := p.TextFgColor, p.TextBgColor
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sequence := p.RendererFactory.TextRenderer(p.Text).Render(fg, bg)
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runes := []rune(sequence.NormalizedText)
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y, x, n := 0, 0, 0
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for y < p.innerHeight && n < len(runes) {
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point, width := sequence.PointAt(n, x+p.innerX, y+p.innerY)
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if runes[n] == '\n' || x+width > p.innerWidth {
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y++
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x = 0 // set x = 0
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if runes[n] == '\n' {
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n++
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}
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if y >= p.innerHeight {
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ps = append(ps, newPointWithAttrs('…',
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p.innerX+p.innerWidth-1,
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p.innerY+p.innerHeight-1,
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p.TextFgColor, p.TextBgColor))
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break
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}
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continue
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}
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ps = append(ps, point)
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n++
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x += width
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}
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return p.Block.chopOverflow(ps)
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}
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