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// 13 february 2014
//package ui
package main
import (
"sync"
)
// A Checkbox is a clickable square with a label. The square can be either checked or 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) (err error) {
c.lock.Lock()
defer c.lock.Unlock()
if c.created {
return c.sysData.setText(text)
}
c.initText = text
return nil
}
// Checked() returns whether or not the checkbox has been checked.
func (c *Checkbox) Checked() bool {
c.lock.Lock()
defer c.lock.Unlock()
check, err := c.sysData.isChecked()
if err != nil {
panic(err) // TODO
}
return check
}
func (c *Checkbox) make(window *sysData) error {
c.lock.Lock()
defer c.lock.Unlock()
err := c.sysData.make(c.initText, window)
if err != nil {
return err
}
c.created = true
return nil
}
func (c *Checkbox) setRect(x int, y int, width int, height int) error {
c.lock.Lock()
defer c.lock.Unlock()
return c.sysData.setRect(x, y, width, height)
}
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