Added Combobox.

1 files changed, 63 insertions, 0 deletions

diff --git a/combobox.go b/combobox.go
new file mode 100644
index 0000000..08d4605
--- /dev/null
+++ b/combobox.go
@@ -0,0 +1,63 @@
+// 14 february 2014
+//package ui
+package main
+
+import (
+	"sync"
+)
+
+// 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.
+type Combobox struct {
+	// TODO Select event
+
+	lock		sync.Mutex
+	created	bool
+	sysData	*sysData
+	initItems	[]string
+}
+
+// NewCombobox makes a new combobox with the given items. If editable is true, the combobox is editable.
+func NewCombobox(editable bool, items ...string) (c *Combobox) {
+	c = &Combobox{
+		sysData:		mksysdata(c_combobox),
+		initItems:		items,
+	}
+	c.sysData.editable = editable
+	return c
+}
+
+// TODO Append, InsertBefore, Delete
+
+// Selection returns the current selection.
+func (c *Combobox) Selection() (string, error) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	return c.sysData.text()
+}
+
+// TODO SelectedIndex
+
+func (c *Combobox) make(window *sysData) (err error) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	err = c.sysData.make("", 300, 300, window)
+	if err != nil {
+		return err
+	}
+	for _, s := range c.initItems {
+		err = c.sysData.append(s)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *Combobox) 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)
+}