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use std::any::Any;
use std::marker::PhantomPinned;
use std::pin::Pin;
use std::sync::Arc;
use crate::co;
use crate::gui::{privs::*, *};
use crate::msg::*;
use crate::prelude::*;
struct TrackbarObj {
base: BaseCtrl,
events: BaseCtrlEvents,
_pin: PhantomPinned,
}
native_ctrl! { Trackbar: TrackbarObj => GuiEventsTrackbar;
/// Native
/// [trackbar](https://learn.microsoft.com/en-us/windows/win32/controls/trackbar-controls)
/// control.
}
impl Trackbar {
/// Instantiates a new `Trackbar` object, to be created on the parent window
/// with [`HWND::CreateWindowEx`](crate::HWND::CreateWindowEx).
///
/// # Panics
///
/// Panics if the parent window was already created – that is, you cannot
/// dynamically create a `Trackbar` in an event closure.
#[must_use]
pub fn new(parent: &(impl GuiParent + 'static), opts: TrackbarOpts) -> Self {
let ctrl_id = auto_id::set_if_zero(opts.ctrl_id);
let new_self = Self(Arc::pin(TrackbarObj {
base: BaseCtrl::new(ctrl_id),
events: BaseCtrlEvents::new(parent, ctrl_id),
_pin: PhantomPinned,
}));
let self2 = new_self.clone();
let parent2 = parent.clone();
parent
.as_ref()
.before_on()
.wm(parent.as_ref().wnd_ty().creation_msg(), move |_| {
self2.0.base.create_window(
opts.window_ex_style,
"msctls_trackbar32",
None,
opts.window_style | opts.control_style.into(),
opts.position.into(),
opts.size.into(),
&parent2,
);
if opts.range != (0, 100) {
self2.set_range(opts.range.0, opts.range.1);
}
if opts.value != 0 {
self2.set_pos(opts.value);
}
parent2
.as_ref()
.add_to_layout(self2.hwnd(), opts.resize_behavior);
Ok(0) // ignored
});
new_self
}
/// Instantiates a new `Trackbar` object, to be loaded from a dialog
/// resource with [`HWND::GetDlgItem`](crate::HWND::GetDlgItem).
///
/// # Panics
///
/// Panics if the parent dialog was already created – that is, you cannot
/// dynamically create a `Trackbar` in an event closure.
#[must_use]
pub fn new_dlg(
parent: &(impl GuiParent + 'static),
ctrl_id: u16,
resize_behavior: (Horz, Vert),
) -> Self {
let new_self = Self(Arc::pin(TrackbarObj {
base: BaseCtrl::new(ctrl_id),
events: BaseCtrlEvents::new(parent, ctrl_id),
_pin: PhantomPinned,
}));
let self2 = new_self.clone();
let parent2 = parent.clone();
parent.as_ref().before_on().wm_init_dialog(move |_| {
self2.0.base.assign_dlg(&parent2);
parent2
.as_ref()
.add_to_layout(self2.hwnd(), resize_behavior);
Ok(true) // ignored
});
new_self
}
/// Retrieves the current position by sending a
/// [`trbm::GetPos`](crate::msg::trbm::GetPos) message.
#[must_use]
pub fn pos(&self) -> u32 {
unsafe { self.hwnd().SendMessage(trbm::GetPos {}) }
}
/// Retrieves the minimum and maximum position values by sending
/// [`trbm::GetRangeMin`](crate::msg::trbm::GetRangeMin) and
/// [`trbm::GetRangeMax`](crate::msg::trbm::GetRangeMax) messages.
#[must_use]
pub fn range(&self) -> (u32, u32) {
unsafe {
(
self.hwnd().SendMessage(trbm::GetRangeMin {}),
self.hwnd().SendMessage(trbm::GetRangeMax {}),
)
}
}
/// Sets the current position by sending a
/// [`trbm::SetPos`](crate::msg::trbm::SetPos) message.
pub fn set_pos(&self, pos: u32) {
unsafe {
self.hwnd().SendMessage(trbm::SetPos { redraw: true, pos });
}
}
/// Sets the minimum and maximum position values by sending
/// [`trbm::SetRangeMin`](crate::msg::trbm::SetRangeMin) and
/// [`trbm::SetRangeMax`](crate::msg::trbm::SetRangeMax) messages.
pub fn set_range(&self, min: u32, max: u32) {
unsafe {
self.hwnd()
.SendMessage(trbm::SetRangeMin { redraw: false, min });
self.hwnd()
.SendMessage(trbm::SetRangeMax { redraw: true, max });
}
}
}
/// Options to create a [`Trackbar`](crate::gui::Trackbar) programmatically with
/// [`Trackbar::new`](crate::gui::Trackbar::new).
pub struct TrackbarOpts {
/// Left and top position coordinates of control within parent's client
/// area, to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `gui::dpi(0, 0)`.
pub position: (i32, i32),
/// Width and height of control to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `gui::dpi(120, 23)`.
pub size: (i32, i32),
/// Trackbar styles to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `TBS::HORZ | TBS::AUTOTICKS`.
pub control_style: co::TBS,
/// Window styles to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `WS::CHILD | WS::GROUP | WS::TABSTOP | WS::VISIBLE`.
pub window_style: co::WS,
/// Extended window styles to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `WS_EX::LEFT`.
pub window_ex_style: co::WS_EX,
/// The control ID.
///
/// Defaults to an auto-generated ID.
pub ctrl_id: u16,
/// Horizontal and vertical behavior of the control when the parent window
/// is resized.
///
/// Defaults to `(gui::Horz::None, gui::Vert::None)`.
pub resize_behavior: (Horz, Vert),
/// The minimum and maximum position values.
///
/// Defaults to `(0, 100)`.
pub range: (u32, u32),
/// Initial position value.
///
/// Defaults to `0`.
pub value: u32,
}
impl Default for TrackbarOpts {
fn default() -> Self {
Self {
position: dpi(0, 0),
size: dpi(120, 23),
control_style: co::TBS::HORZ | co::TBS::AUTOTICKS,
window_style: co::WS::CHILD | co::WS::GROUP | co::WS::TABSTOP | co::WS::VISIBLE,
window_ex_style: co::WS_EX::LEFT,
ctrl_id: 0,
resize_behavior: (Horz::None, Vert::None),
range: (0, 100),
value: 0,
}
}
}