90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
// 15 july 2014
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package ui
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import (
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"unsafe"
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)
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// #include "winapi_windows.h"
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import "C"
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type textfield struct {
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*controlSingleHWNDWithText
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changed *event
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}
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var editclass = toUTF16("EDIT")
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func startNewTextField(style C.DWORD) *textfield {
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hwnd := C.newControl(editclass,
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style|C.textfieldStyle,
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C.textfieldExtStyle) // WS_EX_CLIENTEDGE without WS_BORDER will show the canonical visual styles border (thanks to MindChild in irc.efnet.net/#winprog)
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t := &textfield{
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controlSingleHWNDWithText: newControlSingleHWNDWithText(hwnd),
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changed: newEvent(),
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}
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t.fpreferredSize = t.xpreferredSize
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C.controlSetControlFont(t.hwnd)
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C.setTextFieldSubclass(t.hwnd, unsafe.Pointer(t))
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return t
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}
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func newTextField() *textfield {
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return startNewTextField(0)
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}
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func newPasswordField() *textfield {
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return startNewTextField(C.ES_PASSWORD)
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}
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func (t *textfield) Text() string {
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return t.text()
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}
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func (t *textfield) SetText(text string) {
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t.setText(text)
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}
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func (t *textfield) OnChanged(f func()) {
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t.changed.set(f)
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}
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func (t *textfield) Invalid(reason string) {
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if reason == "" {
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C.textfieldHideInvalidBalloonTip(t.hwnd)
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return
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}
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C.textfieldSetAndShowInvalidBalloonTip(t.hwnd, toUTF16(reason))
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}
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func (t *textfield) ReadOnly() bool {
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return C.textfieldReadOnly(t.hwnd) != 0
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}
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// TODO check visuals: http://www.microsoft.com/en-us/download/details.aspx?id=34587
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func (t *textfield) SetReadOnly(readonly bool) {
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if readonly {
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C.textfieldSetReadOnly(t.hwnd, C.TRUE)
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return
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}
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C.textfieldSetReadOnly(t.hwnd, C.FALSE)
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}
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//export textfieldChanged
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func textfieldChanged(data unsafe.Pointer) {
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t := (*textfield)(data)
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t.changed.fire()
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}
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const (
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// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
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textfieldWidth = 107 // this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary
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textfieldHeight = 14
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)
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// TODO allow custom preferred widths
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func (t *textfield) xpreferredSize(d *sizing) (width, height int) {
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return fromdlgunitsX(textfieldWidth, d), fromdlgunitsY(textfieldHeight, d)
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}
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