1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
package ui
import (
tb "github.com/nsf/termbox-go"
)
type Tabs struct {
Tabs []*Tab
TabStrip *TabStrip
TabContent *TabContent
Selected int
onInvalidateStrip func(d Drawable)
onInvalidateContent func(d Drawable)
}
type Tab struct {
Content Drawable
Name string
invalid bool
}
type TabStrip Tabs
type TabContent Tabs
func NewTabs() *Tabs {
tabs := &Tabs{}
tabs.TabStrip = (*TabStrip)(tabs)
tabs.TabContent = (*TabContent)(tabs)
return tabs
}
func (tabs *Tabs) Add(content Drawable, name string) {
tabs.Tabs = append(tabs.Tabs, &Tab{
Content: content,
Name: name,
})
tabs.TabStrip.Invalidate()
content.OnInvalidate(tabs.invalidateChild)
}
func (tabs *Tabs) invalidateChild(d Drawable) {
for i, tab := range tabs.Tabs {
if tab.Content == d {
if i == tabs.Selected {
tabs.TabContent.Invalidate()
}
return
}
}
}
func (tabs *Tabs) Remove(content Drawable) {
for i, tab := range tabs.Tabs {
if tab.Content == content {
tabs.Tabs = append(tabs.Tabs[:i], tabs.Tabs[i+1:]...)
break
}
}
tabs.TabStrip.Invalidate()
}
func (tabs *Tabs) Select(index int) {
if tabs.Selected != index {
tabs.Selected = index
tabs.TabStrip.Invalidate()
tabs.TabContent.Invalidate()
}
}
// TODO: Color repository
func (strip *TabStrip) Draw(ctx *Context) {
x := 0
for i, tab := range strip.Tabs {
cell := tb.Cell{
Fg: tb.ColorBlack,
Bg: tb.ColorWhite,
}
if strip.Selected == i {
cell.Fg = tb.ColorDefault
cell.Bg = tb.ColorDefault
}
x += ctx.Printf(x, 0, cell, " %s ", tab.Name)
}
cell := tb.Cell{
Fg: tb.ColorBlack,
Bg: tb.ColorWhite,
}
ctx.Fill(x, 0, ctx.Width()-x, 1, cell)
}
func (strip *TabStrip) Invalidate() {
if strip.onInvalidateStrip != nil {
strip.onInvalidateStrip(strip)
}
}
func (strip *TabStrip) OnInvalidate(onInvalidate func(d Drawable)) {
strip.onInvalidateStrip = onInvalidate
}
func (content *TabContent) Draw(ctx *Context) {
tab := content.Tabs[content.Selected]
tab.Content.Draw(ctx)
}
func (content *TabContent) Invalidate() {
if content.onInvalidateContent != nil {
content.onInvalidateContent(content)
}
}
func (content *TabContent) OnInvalidate(onInvalidate func(d Drawable)) {
content.onInvalidateContent = onInvalidate
}
|