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use std::marker::PhantomPinned;
use std::pin::Pin;
use std::sync::Arc;
use crate::co;
use crate::decl::*;
use crate::gui::{*, privs::*};
use crate::msg::*;
use crate::prelude::*;
struct Obj { // actual fields of RawControl
raw_base: RawBase,
opts: WindowControlOpts,
_pin: PhantomPinned,
}
//------------------------------------------------------------------------------
/// An ordinary custom control window.
#[derive(Clone)]
pub(in crate::gui) struct RawControl(Pin<Arc<Obj>>);
impl RawControl {
pub(in crate::gui) fn new(
parent: &impl AsRef<Base>,
opts: WindowControlOpts,
) -> Self
{
let resize_behavior = opts.resize_behavior;
let opts = auto_ctrl_id_if_zero(opts);
let new_self = Self(
Arc::pin(
Obj {
raw_base: RawBase::new(Some(parent)),
opts,
_pin: PhantomPinned,
},
),
);
new_self.default_message_handlers(parent.as_ref(), resize_behavior);
new_self
}
#[must_use]
pub(in crate::gui) fn base(&self) -> &Base {
self.0.raw_base.base()
}
#[must_use]
pub(in crate::gui) fn ctrl_id(&self) -> u16 {
self.0.opts.ctrl_id
}
fn default_message_handlers(&self,
parent: &Base,
resize_behavior: (Horz, Vert),
) {
let self2 = self.clone();
parent.before_user_on().wm_create_or_initdialog(move |_, _| {
let parent_base_ref = self2.base().parent().unwrap();
let opts = &self2.0.opts;
let parent_hinst = self2.base().parent_hinstance()?;
let mut wcx = WNDCLASSEX::default();
let mut class_name_buf = WString::new();
RawBase::fill_wndclassex(
&parent_hinst,
opts.class_style, &opts.class_icon, &opts.class_icon,
&opts.class_bg_brush, &opts.class_cursor, &mut wcx,
&mut class_name_buf)?;
let atom = self2.0.raw_base.register_class(&mut wcx)?;
let mut wnd_pos = POINT::new(opts.position.0, opts.position.1);
let mut wnd_sz = SIZE::new(opts.size.0 as _, opts.size.1 as _);
multiply_dpi_or_dtu(parent_base_ref, Some(&mut wnd_pos), Some(&mut wnd_sz))?;
self2.0.raw_base.create_window(
Some(parent_base_ref.hwnd()),
atom,
None,
IdMenu::Id(opts.ctrl_id),
wnd_pos, wnd_sz,
opts.ex_style, opts.style,
)?;
parent_base_ref.add_to_layout_arranger(self2.base().hwnd(), resize_behavior)?;
Ok(WmRet::HandledOk)
});
self.base().before_user_on().wm(co::WM::NCPAINT, move |hwnd, p| {
paint_control_borders(hwnd, wm::NcPaint::from_generic_wm(p))?;
Ok(WmRet::HandledOk)
});
}
}
//------------------------------------------------------------------------------
/// Options to create a [`WindowControl`](crate::gui::WindowControl)
/// programmatically with [`WindowControl::new`](crate::gui::WindowControl::new).
pub struct WindowControlOpts {
/// Window class name to be
/// [registered](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-registerclassexw).
///
/// Defaults to an auto-generated string.
pub class_name: String,
/// Window class styles to be
/// [registered](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-registerclassexw).
///
/// Defaults to `co::CS::DBLCLKS`.
pub class_style: co::CS,
/// Window main icon to be
/// [registered](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-registerclassexw).
///
/// Defaults to `gui::Icon::None`.
pub class_icon: Icon,
/// Window cursor to be
/// [registered](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-registerclassexw).
///
/// Defaults to `gui::Cursor::Idc(co::IDC::ARROW)`.
pub class_cursor: Cursor,
/// Window background brush to be
/// [registered](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-registerclassexw).
///
/// Defaults to `gui::Brush::Color(co::COLOR::WINDOW)`.
pub class_bg_brush: Brush,
/// 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).
///
/// If the parent window is a dialog, the values are in Dialog Template
/// Units; otherwise in pixels, which will be multiplied to match current
/// system DPI.
///
/// Defaults to `(0, 0)`.
pub position: (i32, i32),
/// Width and height of window to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// If the parent window is a dialog, the values are in Dialog Template
/// Units; otherwise in pixels, which will be multiplied to match current
/// system DPI.
///
/// Defaults to `(100, 80)`.
pub size: (u32, u32),
/// Window styles to be
/// [created](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-createwindowexw).
///
/// Defaults to `WS::CHILD | WS::TABSTOP | WS::GROUP | WS::VISIBLE | WS::CLIPCHILDREN | WS::CLIPSIBLINGS`.
pub 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`.
///
/// Suggestion:
/// * `WS_EX::CLIENTEDGE` to have a border.
pub 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 Default for WindowControlOpts {
fn default() -> Self {
Self {
class_name: "".to_owned(),
class_style: co::CS::DBLCLKS,
class_icon: Icon::None,
class_cursor: Cursor::Idc(co::IDC::ARROW),
class_bg_brush: Brush::Color(co::COLOR::WINDOW),
position: (0, 0),
size: (100, 80),
style: co::WS::CHILD | co::WS::TABSTOP | co::WS::GROUP | co::WS::VISIBLE | co::WS::CLIPCHILDREN | co::WS::CLIPSIBLINGS,
ex_style: co::WS_EX::LEFT,
ctrl_id: 0,
resize_behavior: (Horz::None, Vert::None),
}
}
}
impl AutoCtrlId for WindowControlOpts {
fn ctrl_id_mut(&mut self) -> &mut u16 {
&mut self.ctrl_id
}
}