From d0fe74d60382dd27dec59d286ca5098ee5dceb6c Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Sun, 26 Aug 2018 13:48:13 -0400
Subject: Migrated datetimepicker.go and brought stddialogs.go back again.

---
 datetimepicker.go | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 datetimepicker.go

(limited to 'datetimepicker.go')

diff --git a/datetimepicker.go b/datetimepicker.go
new file mode 100644
index 0000000..986b43f
--- /dev/null
+++ b/datetimepicker.go
@@ -0,0 +1,97 @@
+// 12 december 2015
+
+package ui
+
+import (
+	"time"
+	"unsafe"
+)
+
+// #include "pkgui.h"
+import "C"
+
+// DateTimePicker is a Control that represents a field where the user
+// can enter a date and/or a time.
+type DateTimePicker struct {
+	ControlBase
+	d	*C.uiDateTimePicker
+	onChanged	func(*DateTimePicker)
+}
+
+func finishNewDateTimePicker(dd *C.uiDateTimePicker) *DateTimePicker {
+	d := new(DateTimePicker)
+
+	d.d = dd
+
+	C.pkguiDateTimePickerOnChanged(d.d)
+
+	d.ControlBase = NewControlBase(d, uintptr(unsafe.Pointer(d.d)))
+	return d
+}
+
+// NewDateTimePicker creates a new DateTimePicker that shows
+// both a date and a time.
+func NewDateTimePicker() *DateTimePicker {
+	return finishNewDateTimePicker(C.uiNewDateTimePicker())
+}
+
+// NewDatePicker creates a new DateTimePicker that shows
+// only a date.
+func NewDatePicker() *DateTimePicker {
+	return finishNewDateTimePicker(C.uiNewDatePicker())
+}
+
+// NewTimePicker creates a new DateTimePicker that shows
+// only a time.
+func NewTimePicker() *DateTimePicker {
+	return finishNewDateTimePicker(C.uiNewTimePicker())
+}
+
+// Time returns the time stored in the uiDateTimePicker.
+// The time is assumed to be local time.
+func (d *DateTimePicker) Time() time.Time {
+	tm := C.pkguiAllocTime()
+	defer C.pkguiFreeTime(tm)
+	C.uiDateTimePickerTime(d.d, tm)
+	return time.Date(
+		int(tm.tm_year + 1900),
+		time.Month(tm.tm_mon + 1),
+		int(tm.tm_mday),
+		int(tm.tm_hour),
+		int(tm.tm_min),
+		int(tm.tm_sec),
+		0, time.Local)
+}
+
+// SetTime sets the time in the DateTimePicker to t.
+// t's components are read as-is via t.Date() and t.Clock();
+// no time zone manipulations are done.
+func (d *DateTimePicker) SetTime(t time.Time) {
+	tm := C.pkguiAllocTime()
+	defer C.pkguiFreeTime(tm)
+	year, mon, mday := t.Date()
+	tm.tm_year = C.int(year - 1900)
+	tm.tm_mon = C.int(mon - 1)
+	tm.tm_mday = C.int(mday)
+	hour, min, sec := t.Clock()
+	tm.tm_hour = C.int(hour)
+	tm.tm_min = C.int(min)
+	tm.tm_sec = C.int(sec)
+	tm.tm_isdst = -1
+	C.uiDateTimePickerSetTime(d.d, tm)
+}
+
+// OnChanged registers f to be run when the user changes the time
+// in the DateTimePicker. Only one function can be registered at a
+// time.
+func (d *DateTimePicker) OnChanged(f func(*DateTimePicker)) {
+	d.onChanged = f
+}
+
+//export pkguiDoDateTimePickerOnChanged
+func pkguiDoDateTimePickerOnChanged(dd *C.uiDateTimePicker, data unsafe.Pointer) {
+	d := ControlFromLibui(uintptr(unsafe.Pointer(dd))).(*DateTimePicker)
+	if d.onChanged != nil {
+		d.onChanged(d)
+	}
+}
-- 
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