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