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C++: add WindowAdaptor::update_window_properties

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Olivier Goffart 2023-08-25 13:58:55 +02:00 • committed by GitHub
parent e7a883348b
commit d23ba885ca
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6 changed files with 140 additions and 8 deletions
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53
api/cpp/platform.rs
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@ -4,12 +4,13 @@
use alloc::boxed::Box;
use alloc::rc::Rc;
use core::ffi::c_void;
use i_slint_core::api::{PhysicalSize, Window};
use i_slint_core::api::{LogicalSize, PhysicalSize, Window};
use i_slint_core::graphics::IntSize;
use i_slint_core::platform::{Platform, PlatformError};
use i_slint_core::renderer::Renderer;
use i_slint_core::window::ffi::WindowAdapterRcOpaque;
use i_slint_core::window::WindowAdapter;
use i_slint_core::window::{WindowAdapter, WindowProperties};
use i_slint_core::SharedString;
type WindowAdapterUserData = *mut c_void;
@ -29,6 +30,7 @@ pub struct CppWindowAdapter {
set_visible: unsafe extern "C" fn(WindowAdapterUserData, bool),
request_redraw: unsafe extern "C" fn(WindowAdapterUserData),
size: unsafe extern "C" fn(WindowAdapterUserData) -> IntSize,
update_window_properties: unsafe extern "C" fn(WindowAdapterUserData, &WindowProperties),
}
impl Drop for CppWindowAdapter {
@ -59,6 +61,51 @@ impl WindowAdapter for CppWindowAdapter {
fn request_redraw(&self) {
unsafe { (self.request_redraw)(self.user_data) }
}
fn update_window_properties(&self, properties: WindowProperties<'_>) {
unsafe { (self.update_window_properties)(self.user_data, &properties) }
}
}
#[no_mangle]
pub extern "C" fn slint_window_properties_get_title(wp: &WindowProperties, out: &mut SharedString) {
*out = wp.title();
}
#[no_mangle]
pub extern "C" fn slint_window_properties_get_background(
wp: &WindowProperties,
out: &mut i_slint_core::Brush,
) {
*out = wp.background();
}
#[repr(C)]
#[derive(Clone, Copy)]
/// a Repr(C) variant of slint::platform::LayoutConstraints
pub struct LayoutConstraintsReprC {
pub min: i_slint_core::graphics::Size,
pub max: i_slint_core::graphics::Size,
pub preferred: i_slint_core::graphics::Size,
pub has_min: bool,
pub has_max: bool,
}
#[no_mangle]
pub extern "C" fn slint_window_properties_get_layout_constraints(
wp: &WindowProperties,
) -> LayoutConstraintsReprC {
let c = wp.layout_constraints();
LayoutConstraintsReprC {
min: i_slint_core::lengths::logical_size_from_api(c.min.unwrap_or_default()).to_untyped(),
max: i_slint_core::lengths::logical_size_from_api(
c.max.unwrap_or(LogicalSize { width: f32::MAX, height: f32::MAX }),
)
.to_untyped(),
preferred: i_slint_core::lengths::logical_size_from_api(c.preferred).to_untyped(),
has_min: c.min.is_some(),
has_max: c.max.is_some(),
}
}
#[no_mangle]
@ -69,6 +116,7 @@ pub unsafe extern "C" fn slint_window_adapter_new(
set_visible: unsafe extern "C" fn(WindowAdapterUserData, bool),
request_redraw: unsafe extern "C" fn(WindowAdapterUserData),
size: unsafe extern "C" fn(WindowAdapterUserData) -> IntSize,
update_window_properties: unsafe extern "C" fn(WindowAdapterUserData, &WindowProperties),
target: *mut WindowAdapterRcOpaque,
) {
let window = Rc::<CppWindowAdapter>::new_cyclic(|w| CppWindowAdapter {
@ -79,6 +127,7 @@ pub unsafe extern "C" fn slint_window_adapter_new(
set_visible,
request_redraw,
size,
update_window_properties,
});
core::ptr::write(target as *mut Rc<dyn WindowAdapter>, window);