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
|
// 13 february 2014
package ui
import (
"sync"
)
// A Checkbox is a clickable square with a label. The square can be either checked or unchecked. Checkboxes start out unchecked.
type Checkbox struct {
// TODO provide a channel for broadcasting check changes
lock sync.Mutex
created bool
sysData *sysData
initText string
initCheck bool
}
// NewCheckbox creates a new checkbox with the specified text.
func NewCheckbox(text string) (c *Checkbox) {
return &Checkbox{
sysData: mksysdata(c_checkbox),
initText: text,
}
}
// SetText sets the checkbox's text.
func (c *Checkbox) SetText(text string) {
c.lock.Lock()
defer c.lock.Unlock()
if c.created {
c.sysData.setText(text)
return
}
c.initText = text
}
// Text returns the checkbox's text.
func (c *Checkbox) Text() string {
c.lock.Lock()
defer c.lock.Unlock()
if c.created {
return c.sysData.text()
}
return c.initText
}
// Checked() returns whether or not the checkbox has been checked.
func (c *Checkbox) Checked() bool {
c.lock.Lock()
defer c.lock.Unlock()
if c.created {
return c.sysData.isChecked()
}
return false
}
func (c *Checkbox) make(window *sysData) error {
c.lock.Lock()
defer c.lock.Unlock()
err := c.sysData.make(window)
if err != nil {
return err
}
c.sysData.setText(c.initText)
c.created = true
return nil
}
func (c *Checkbox) setRect(x int, y int, width int, height int, rr *[]resizerequest) {
*rr = append(*rr, resizerequest{
sysData: c.sysData,
x: x,
y: y,
width: width,
height: height,
})
}
func (c *Checkbox) preferredSize() (width int, height int) {
return c.sysData.preferredSize()
}
|
