68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
// 14 february 2014
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//package ui
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package main
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import (
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"sync"
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)
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// A Combobox is a drop-down list of items, of which only one can be selected at any given time. You may optionally make the combobox editable to allow custom items.
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type Combobox struct {
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// TODO Select event
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lock sync.Mutex
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created bool
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sysData *sysData
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initItems []string
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}
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// NewCombobox makes a new combobox with the given items. If editable is true, the combobox is editable.
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func NewCombobox(editable bool, items ...string) (c *Combobox) {
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c = &Combobox{
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sysData: mksysdata(c_combobox),
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initItems: items,
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}
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c.sysData.alternate = editable
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return c
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}
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// TODO Append, InsertBefore, Delete
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// Selection returns the current selection.
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func (c *Combobox) Selection() 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 ""
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}
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// TODO SelectedIndex
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func (c *Combobox) make(window *sysData) (err error) {
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c.lock.Lock()
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defer c.lock.Unlock()
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err = c.sysData.make("", window)
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if err != nil {
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return err
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}
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for _, s := range c.initItems {
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err = c.sysData.append(s)
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if err != nil {
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return err
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}
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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 *Combobox) setRect(x int, y int, width int, height 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)
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}
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