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use std::hash::Hash;
use std::any::TypeId;
use std::mem;
use winapi::{HWND, HFONT, DATETIMEPICKERINFO, SYSTEMTIME};
use user32::SendMessageW;
use ui::Ui;
use controls::{Control, ControlT, ControlType, AnyHandle};
use error::Error;
use events::Event;
use defs::{HTextAlign, CheckState, PickerDate};
use low::other_helper::to_utf16;
#[derive(Clone)]
pub struct DatePickerT<S: Clone+Into<String>, ID: Hash+Clone> {
pub value: Option<PickerDate>,
pub position: (i32, i32),
pub size: (u32, u32),
pub visible: bool,
pub disabled: bool,
pub parent: ID,
pub font: Option<ID>,
pub align: HTextAlign,
pub format: S,
pub optional: bool,
pub range: (Option<PickerDate>, Option<PickerDate>)
}
impl<S: Clone+Into<String>, ID: Hash+Clone> ControlT<ID> for DatePickerT<S, ID> {
fn type_id(&self) -> TypeId { TypeId::of::<DatePicker>() }
fn events(&self) -> Vec<Event> {
vec![Event::Destroyed, Event::Moved, Event::Resized, Event::Raw]
}
fn build(&self, ui: &Ui<ID>) -> Result<Box<Control>, Error> {
use low::window_helper::{WindowParams, build_window, set_window_font, handle_of_window, handle_of_font};
use winapi::{DWORD, WS_VISIBLE, WS_DISABLED, WS_CHILD, DTS_SHOWNONE, DTS_RIGHTALIGN};
let flags: DWORD = WS_CHILD |
if self.visible { WS_VISIBLE } else { 0 } |
if self.disabled { WS_DISABLED } else { 0 } |
if self.optional { DTS_SHOWNONE } else { 0 } |
match self.align {
HTextAlign::Center=>{ return Err(Error::UserError("The date time picker control do not support centered text.".to_string())); },
HTextAlign::Left=>0,
HTextAlign::Right=>DTS_RIGHTALIGN
};
let parent = match handle_of_window(ui, &self.parent, "The parent of a date time picker must be a window-like control.") {
Ok(h) => h,
Err(e) => { return Err(e); }
};
let font_handle: Option<HFONT> = match self.font.as_ref() {
Some(font_id) =>
match handle_of_font(ui, &font_id, "The font of a date time picker must be a font resource.") {
Ok(h) => Some(h),
Err(e) => { return Err(e); }
},
None => None
};
let params = WindowParams {
title: "",
class_name: "SysDateTimePick32",
position: self.position.clone(),
size: self.size.clone(),
flags: flags,
ex_flags: Some(0),
parent: parent
};
match unsafe{ build_window(params) } {
Ok(h) => {
unsafe{
set_window_font(h, font_handle, true);
}
let dtp = DatePicker{handle: h};
dtp.set_format(&self.format);
dtp.set_value(&self.value);
dtp.set_align(&self.align);
Ok( Box::new(dtp) )
},
Err(e) => Err(Error::System(e))
}
}
}
pub struct DatePicker {
handle: HWND,
}
impl DatePicker {
pub fn set_format<S: Clone+Into<String>>(&self, format: &S) {
use winapi::{DTM_SETFORMATW, LPARAM};
unsafe{
let format = to_utf16(format.clone().into().as_str());
SendMessageW(self.handle, DTM_SETFORMATW, 0, format.as_ptr() as LPARAM);
}
}
pub fn get_checkstate(&self) -> CheckState {
use low::defs::STATE_SYSTEM_CHECKED;
let info = unsafe{ get_dtp_info(self.handle) };
match info.stateCheck {
STATE_SYSTEM_CHECKED => CheckState::Checked,
_ => CheckState::Unchecked
}
}
pub fn get_value(&self) -> Option<PickerDate> {
use winapi::{DTM_GETSYSTEMTIME, GDT_VALID};
let mut syst: SYSTEMTIME = unsafe{ mem::uninitialized() };
let r = unsafe{ SendMessageW(self.handle, DTM_GETSYSTEMTIME, 0, mem::transmute(&mut syst)) };
match r {
GDT_VALID => Some(PickerDate{
year: syst.wYear,
month: syst.wMonth,
day: syst.wDay
}),
_ => None
}
}
pub fn set_value(&self, date: &Option<PickerDate>) {
use winapi::{DTM_SETSYSTEMTIME, GDT_VALID, GDT_NONE, WPARAM};
unsafe{
match date {
&Some(ref date) => {
let syst: SYSTEMTIME = SYSTEMTIME{
wYear: date.year,
wMonth: date.month,
wDay: date.day,
wDayOfWeek:0, wHour:0, wMinute:0, wSecond:0, wMilliseconds: 0
};
SendMessageW(self.handle, DTM_SETSYSTEMTIME, GDT_VALID as WPARAM, mem::transmute(&syst));
},
&None => {
SendMessageW(self.handle, DTM_SETSYSTEMTIME, GDT_NONE as WPARAM, 0);
}
};
}
}
pub fn get_align(&self) -> HTextAlign {
use low::window_helper::get_window_long;
use winapi::{GWL_STYLE, DTS_RIGHTALIGN};
let style = get_window_long(self.handle, GWL_STYLE) as u32;
if (style & DTS_RIGHTALIGN) == DTS_RIGHTALIGN {
HTextAlign::Right
} else {
HTextAlign::Left
}
}
pub fn set_align(&self, align: &HTextAlign) {
use low::window_helper::{set_window_long, get_window_long};
use winapi::{GWL_STYLE, DTS_RIGHTALIGN};
let mut old_style = get_window_long(self.handle, GWL_STYLE) as usize;
let right_align = DTS_RIGHTALIGN as usize;
old_style = (old_style | right_align) ^ right_align ;
if *align == HTextAlign::Right {
set_window_long(self.handle, GWL_STYLE, old_style|right_align);
} else {
set_window_long(self.handle, GWL_STYLE, old_style);
}
}
pub fn close_calendar(&self) {
use winapi::{DTM_CLOSEMONTHCAL};
unsafe{ SendMessageW(self.handle, DTM_CLOSEMONTHCAL, 0, 0); }
}
pub fn get_value_string(&self) -> String { unsafe{ ::low::window_helper::get_window_text(self.handle) } }
pub fn get_visibility(&self) -> bool { unsafe{ ::low::window_helper::get_window_visibility(self.handle) } }
pub fn set_visibility(&self, visible: bool) { unsafe{ ::low::window_helper::set_window_visibility(self.handle, visible); }}
pub fn get_position(&self) -> (i32, i32) { unsafe{ ::low::window_helper::get_window_position(self.handle) } }
pub fn set_position(&self, x: i32, y: i32) { unsafe{ ::low::window_helper::set_window_position(self.handle, x, y); }}
pub fn get_size(&self) -> (u32, u32) { unsafe{ ::low::window_helper::get_window_size(self.handle) } }
pub fn set_size(&self, w: u32, h: u32) { unsafe{ ::low::window_helper::set_window_size(self.handle, w, h, false); } }
pub fn get_enabled(&self) -> bool { unsafe{ ::low::window_helper::get_window_enabled(self.handle) } }
pub fn set_enabled(&self, e:bool) { unsafe{ ::low::window_helper::set_window_enabled(self.handle, e); } }
}
impl Control for DatePicker {
fn handle(&self) -> AnyHandle {
AnyHandle::HWND(self.handle)
}
fn control_type(&self) -> ControlType {
ControlType::DatePicker
}
fn free(&mut self) {
use user32::DestroyWindow;
unsafe{ DestroyWindow(self.handle) };
}
}
#[inline(always)]
unsafe fn get_dtp_info(handle: HWND) -> DATETIMEPICKERINFO {
use winapi::{DTM_GETDATETIMEPICKERINFO, DWORD};
let mut dtp_info: DATETIMEPICKERINFO = mem::uninitialized();
dtp_info.cbSize = mem::size_of::<DATETIMEPICKERINFO>() as DWORD;
SendMessageW(handle, DTM_GETDATETIMEPICKERINFO, 0, mem::transmute(&mut dtp_info));
dtp_info
}