termui/render.go
gizak 7aed750f64 WIP use Buffer instead of []Point in Bufferer
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
2015-04-21 09:56:10 -04:00

64 lines
1.5 KiB
Go

// Copyright 2015 Zack Guo <gizak@icloud.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import tm "github.com/nsf/termbox-go"
// Bufferer should be implemented by all renderable components.
type Bufferer interface {
Buffer() Buffer
}
// Init initializes termui library. This function should be called before any others.
// After initialization, the library must be finalized by 'Close' function.
func Init() error {
Body = NewGrid()
Body.X = 0
Body.Y = 0
Body.BgColor = theme.BodyBg
defer func() {
w, _ := tm.Size()
Body.Width = w
evtListen()
}()
return tm.Init()
}
// Close finalizes termui library,
// should be called after successful initialization when termui's functionality isn't required anymore.
func Close() {
tm.Close()
}
// TermWidth returns the current terminal's width.
func TermWidth() int {
w, _ := tm.Size()
return w
}
// TermHeight returns the current terminal's height.
func TermHeight() int {
_, h := tm.Size()
return h
}
// Render renders all Bufferer in the given order from left to right,
// right could overlap on left ones.
func Render(bs ...Bufferer) {
// set tm bg
tm.Clear(tm.ColorDefault, toTmAttr(theme.BodyBg))
for _, b := range bs {
buf := b.Buffer()
// set cels in buf
for p, c := range buf.CellMap {
if true { //}p.In(buf.Area) {
tm.SetCell(p.X, p.Y, c.Ch, toTmAttr(c.Fg), toTmAttr(c.Bg))
}
}
}
// render
tm.Flush()
}