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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::decl::*;
use crate::gui::{privs::*, *};
use crate::prelude::*;
struct LabelObj {
base: BaseCtrl,
events: BaseCtrlEvents,
_pin: PhantomPinned,
}
native_ctrl! { Label: LabelObj => GuiEventsLabel;
/// Native
/// [label](https://learn.microsoft.com/en-us/windows/win32/controls/about-static-controls)
/// control.
}
impl Label {
/// Instantiates a new `Label` 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 `Label` in an event closure.
#[must_use]
pub fn new(parent: &(impl GuiParent + 'static), opts: LabelOpts) -> Self {
let ctrl_id = auto_id::set_if_zero(opts.ctrl_id);
let new_self = Self(Arc::pin(LabelObj {
base: BaseCtrl::new(ctrl_id),
events: BaseCtrlEvents::new(parent, ctrl_id),
_pin: PhantomPinned,
}));
let self2 = new_self.clone();
let parent2 = parent.clone();
let text2 = opts.text.to_owned();
parent
.as_ref()
.before_on()
.wm(parent.as_ref().wnd_ty().creation_msg(), move |_| {
self2.0.base.create_window(
opts.window_ex_style,
"STATIC",
Some(&text2),
opts.window_style | opts.control_style.into(),
opts.position.into(),
if opts.size == (0, 0) {
text_calc::bound_box(&text_calc::remove_accel_ampersands(&text2))
} else {
opts.size.into()
},
&parent2,
);
ui_font::set(self2.hwnd());
parent2
.as_ref()
.add_to_layout(self2.hwnd(), opts.resize_behavior);
Ok(0) // ignored
});
new_self
}
/// Instantiates a new `Label` 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 `Label` 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(LabelObj {
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
}
/// Calls [`HWND::SetWindowText`](crate::HWND::SetWindowText) to set the
/// text and resizes the control to exactly fit it.
pub fn set_text_and_resize(&self, text: &str) -> SysResult<()> {
let bound_box = text_calc::bound_box(&text_calc::remove_accel_ampersands(text));
self.hwnd().SetWindowPos(
HwndPlace::None,
POINT::default(),
bound_box,
co::SWP::NOZORDER | co::SWP::NOMOVE,
)?;
self.hwnd().SetWindowText(text)?;
Ok(())
}
}
/// Options to create a [`Label`](crate::gui::Label) programmatically with
/// [`Label::new`](crate::gui::Label::new).
pub struct LabelOpts<'a> {
/// Text of the control to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to "Label".
pub text: &'a str,
/// 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 the size needed to fit the text.
pub size: (i32, i32),
/// Label styles to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `SS::LEFT | SS:NOTIFY`.
pub control_style: co::SS,
/// Window styles to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `WS::CHILD | 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),
}
impl<'a> Default for LabelOpts<'a> {
fn default() -> Self {
Self {
text: "Label",
position: dpi(0, 0),
size: (0, 0), // will resize to fit the text
control_style: co::SS::LEFT | co::SS::NOTIFY,
window_style: co::WS::CHILD | co::WS::VISIBLE,
window_ex_style: co::WS_EX::LEFT,
ctrl_id: 0,
resize_behavior: (Horz::None, Vert::None),
}
}
}