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// 15 july 2014
package ui
import (
"unsafe"
)
// #include "winapi_windows.h"
import "C"
type textfield struct {
*controlSingleHWNDWithText
changed *event
}
var editclass = toUTF16("EDIT")
func startNewTextField(style C.DWORD) *textfield {
hwnd := C.newControl(editclass,
style|C.textfieldStyle,
C.textfieldExtStyle) // WS_EX_CLIENTEDGE without WS_BORDER will show the canonical visual styles border (thanks to MindChild in irc.efnet.net/#winprog)
t := &textfield{
controlSingleHWNDWithText: newControlSingleHWNDWithText(hwnd),
changed: newEvent(),
}
t.fpreferredSize = t.xpreferredSize
C.controlSetControlFont(t.hwnd)
C.setTextFieldSubclass(t.hwnd, unsafe.Pointer(t))
return t
}
func newTextField() *textfield {
return startNewTextField(0)
}
func newPasswordField() *textfield {
return startNewTextField(C.ES_PASSWORD)
}
func (t *textfield) Text() string {
return t.text()
}
func (t *textfield) SetText(text string) {
t.setText(text)
}
func (t *textfield) OnChanged(f func()) {
t.changed.set(f)
}
func (t *textfield) Invalid(reason string) {
if reason == "" {
C.textfieldHideInvalidBalloonTip(t.hwnd)
return
}
C.textfieldSetAndShowInvalidBalloonTip(t.hwnd, toUTF16(reason))
}
//export textfieldChanged
func textfieldChanged(data unsafe.Pointer) {
t := (*textfield)(data)
t.changed.fire()
}
const (
// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
textfieldWidth = 107 // this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary
textfieldHeight = 14
)
func (t *textfield) xpreferredSize(d *sizing) (width, height int) {
return fromdlgunitsX(textfieldWidth, d), fromdlgunitsY(textfieldHeight, d)
}
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