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Removed viewports code from imgui-winit-support

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This commit is contained in:
Robin 2022-12-20 13:32:15 +01:00
parent e3bdcffee0
commit 1d88eceb16
4 changed files with 2 additions and 375 deletions
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2
imgui-examples/Cargo.toml
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@ -14,7 +14,7 @@ glium = { version = "0.32.1", default-features = true }
image = "0.23"
imgui = { path = "../imgui", features = ["tables-api"] }
imgui-glium-renderer = { path = "../imgui-glium-renderer" }
imgui-winit-support = { path = "../imgui-winit-support", features=["viewports"] }
imgui-winit-support = { path = "../imgui-winit-support" }
# Pin indirect dependency scoped-tls to 1.0.0
# as 1.0.1 bumped MSRV to 1.59

5
imgui-examples/examples/support/mod.rs
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@ -157,11 +157,8 @@ impl System {
}
Event::WindowEvent {
event: WindowEvent::CloseRequested,
window_id,
..
} if window_id == display.gl_window().window().id() => {
*control_flow = ControlFlow::Exit
}
} => *control_flow = ControlFlow::Exit,
event => {
let gl_window = display.gl_window();
platform.handle_event(imgui.io_mut(), gl_window.window(), &event);

3
imgui-winit-support/Cargo.toml
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@ -12,6 +12,3 @@ categories = ["gui"]
[dependencies]
imgui = { version = "0.9.0", path = "../imgui" }
winit = { version = "0.27.2", default-features = false }
[features]
viewports = [ "imgui/docking" ]

367
imgui-winit-support/src/lib.rs
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@ -203,124 +203,6 @@ impl HiDpiMode {
}
}
#[cfg(feature = "viewports")]
struct ViewportBackend {}
#[cfg(feature = "viewports")]
impl imgui::PlatformViewportBackend for ViewportBackend {
fn create_window(&mut self, viewport: &mut imgui::Viewport) {
viewport.platform_user_data = Box::into_raw(Box::new(ViewportState {
create: true,
set_show: false,
set_pos: None,
set_size: None,
set_focus: false,
set_title: None,
pos: [0.0, 0.0],
size: [0.0, 0.0],
focus: false,
minimized: false,
})) as *mut _;
}
fn destroy_window(&mut self, viewport: &mut imgui::Viewport) {
unsafe {
Box::from_raw(viewport.platform_user_data as *mut ViewportState);
}
viewport.platform_user_data = std::ptr::null_mut();
}
fn show_window(&mut self, viewport: &mut imgui::Viewport) {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.set_show = true;
}
fn set_window_pos(&mut self, viewport: &mut imgui::Viewport, pos: [f32; 2]) {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.set_pos = Some(pos);
}
fn get_window_pos(&mut self, viewport: &mut imgui::Viewport) -> [f32; 2] {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.pos
}
fn set_window_size(&mut self, viewport: &mut imgui::Viewport, size: [f32; 2]) {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.set_size = Some(size);
}
fn get_window_size(&mut self, viewport: &mut imgui::Viewport) -> [f32; 2] {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.size
}
fn set_window_focus(&mut self, viewport: &mut imgui::Viewport) {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.set_focus = true;
}
fn get_window_focus(&mut self, viewport: &mut imgui::Viewport) -> bool {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.focus
}
fn get_window_minimized(&mut self, viewport: &mut imgui::Viewport) -> bool {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.minimized
}
fn set_window_title(&mut self, viewport: &mut imgui::Viewport, title: &str) {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
state.set_title = Some(title.to_string());
}
fn set_window_alpha(&mut self, _viewport: &mut imgui::Viewport, _alpha: f32) {}
fn update_window(&mut self, _viewport: &mut imgui::Viewport) {}
fn render_window(&mut self, _viewport: &mut imgui::Viewport) {}
fn swap_buffers(&mut self, _viewport: &mut imgui::Viewport) {}
fn create_vk_surface(
&mut self,
_viewport: &mut imgui::Viewport,
_instance: u64,
_out_surface: &mut u64,
) -> i32 {
0
}
}
#[cfg(feature = "viewports")]
struct ViewportState {
create: bool,
set_show: bool,
set_pos: Option<[f32; 2]>,
set_size: Option<[f32; 2]>,
set_focus: bool,
set_title: Option<String>,
pos: [f32; 2],
size: [f32; 2],
focus: bool,
minimized: bool,
}
#[cfg(feature = "viewports")]
pub trait WinitPlatformViewportStorage {
fn create_window(&mut self, id: imgui::Id, flags: imgui::ViewportFlags);
fn remove_windows(&mut self, filter: impl Fn(imgui::Id) -> bool);
fn get_window(
&mut self,
id: winit::window::WindowId,
) -> Option<(imgui::Id, &winit::window::Window)>;
fn for_each(&mut self, func: impl FnMut(imgui::Id, &winit::window::Window));
}
impl WinitPlatform {
/// Initializes a winit platform instance and configures imgui.
///
@ -366,109 +248,6 @@ impl WinitPlatform {
mouse_buttons: [Button::INIT; 5],
}
}
#[cfg(feature = "viewports")]
pub fn init_viewports<T>(
imgui: &mut Context,
main_window: &winit::window::Window,
event_loop: &winit::event_loop::EventLoop<T>,
) {
let io = imgui.io_mut();
io.backend_flags
.insert(BackendFlags::PLATFORM_HAS_VIEWPORTS);
imgui.set_platform_backend(ViewportBackend {});
let mut monitors = Vec::new();
for monitor in event_loop.available_monitors() {
monitors.push(imgui::PlatformMonitor {
main_pos: [monitor.position().x as f32, monitor.position().y as f32],
main_size: [monitor.size().width as f32, monitor.size().height as f32],
work_pos: [monitor.position().x as f32, monitor.position().y as f32],
work_size: [monitor.size().width as f32, monitor.size().height as f32],
dpi_scale: 1.0,
});
}
imgui
.platform_io_mut()
.monitors
.replace_from_slice(&monitors);
let pos = main_window.inner_position().unwrap();
let pos = [pos.x as f32, pos.y as f32];
let size = main_window.inner_size();
let size = [size.width as f32, size.height as f32];
let main_viewport = imgui.main_viewport_mut();
main_viewport.platform_user_data = Box::into_raw(Box::new(ViewportState {
create: false,
set_show: false,
set_pos: None,
set_size: None,
set_focus: false,
set_title: None,
pos,
size,
focus: true,
minimized: false,
})) as *mut _;
}
#[cfg(feature = "viewports")]
pub fn update_viewports(
&mut self,
imgui: &mut Context,
storage: &mut impl WinitPlatformViewportStorage,
) {
// remove destroyed windows
storage.remove_windows(|id| !imgui.viewports().any(|vp| vp.id == id));
// handle new viewports
for viewport in imgui.viewports_mut() {
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
if state.create {
storage.create_window(viewport.id, viewport.flags);
state.create = false;
}
}
// handle other viewport events
storage.for_each(|id, wnd| {
let viewport = imgui.viewport_by_id_mut(id).unwrap();
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
if let Some(pos) = &state.set_pos {
let wnd_pos = wnd.outer_position().unwrap();
let inner_pos = wnd.inner_position().unwrap();
let decoration_size = [inner_pos.x - wnd_pos.x, inner_pos.y - wnd_pos.y];
wnd.set_outer_position(winit::dpi::LogicalPosition::new(
pos[0] - decoration_size[0] as f32,
pos[1] - decoration_size[1] as f32,
));
state.set_pos = None;
}
if let Some(size) = &state.set_size {
wnd.set_inner_size(winit::dpi::LogicalSize::new(size[0], size[1]));
state.set_size = None;
}
if state.set_show {
wnd.set_visible(true);
state.set_show = false;
}
if state.set_focus {
wnd.focus_window();
state.set_focus = false;
}
if let Some(title) = &state.set_title {
wnd.set_title(title);
state.set_title = None;
}
});
}
/// Attaches the platform instance to a winit window.
///
/// This function configures imgui-rs in the following ways:
@ -579,152 +358,6 @@ impl WinitPlatform {
_ => (),
}
}
#[cfg(feature = "viewports")]
pub fn handle_viewport_event<T>(
&mut self,
imgui: &mut imgui::Context,
main_window: &Window,
storage: &mut impl WinitPlatformViewportStorage,
event: &Event<T>,
) {
if !imgui
.io()
.backend_flags
.contains(BackendFlags::PLATFORM_HAS_VIEWPORTS | BackendFlags::RENDERER_HAS_VIEWPORTS)
|| !imgui
.io()
.config_flags
.contains(ConfigFlags::VIEWPORTS_ENABLE)
{
return;
}
if let Event::WindowEvent {
window_id,
ref event,
} = *event
{
let (viewport, window) = if window_id == main_window.id() {
(imgui.main_viewport_mut(), main_window)
} else if let Some((viewport_id, window)) = storage.get_window(window_id) {
if let Some(viewport) = imgui.viewport_by_id_mut(viewport_id) {
(viewport, window)
} else {
return;
}
} else {
return;
};
let state = unsafe { &mut *(viewport.platform_user_data as *mut ViewportState) };
match *event {
WindowEvent::Resized(new_size) => {
state.size = [new_size.width as f32, new_size.height as f32];
if new_size.width == 0 || new_size.height == 0 {
state.minimized = true;
} else {
state.minimized = false;
}
}
WindowEvent::Moved(_new_pos) => {
let pos = window.inner_position().unwrap();
state.pos = [pos.x as f32, pos.y as f32];
}
WindowEvent::CloseRequested => {
viewport.platform_request_close = true;
}
WindowEvent::Focused(focus) => {
state.focus = focus;
}
WindowEvent::CursorMoved { position, .. } => {
let wnd_pos = window.inner_position().unwrap();
let pos = [
wnd_pos.x as f32 + position.x as f32,
wnd_pos.y as f32 + position.y as f32,
];
imgui.io_mut().mouse_pos = pos;
}
WindowEvent::KeyboardInput {
input:
KeyboardInput {
virtual_keycode: Some(key),
state,
..
},
..
} if window_id != main_window.id() => {
let io = imgui.io_mut();
let pressed = state == ElementState::Pressed;
io.keys_down[key as usize] = pressed;
// This is a bit redundant here, but we'll leave it in. The OS occasionally
// fails to send modifiers keys, but it doesn't seem to send false-positives,
// so double checking isn't terrible in case some system *doesn't* send
// device events sometimes.
match key {
VirtualKeyCode::LShift | VirtualKeyCode::RShift => io.key_shift = pressed,
VirtualKeyCode::LControl | VirtualKeyCode::RControl => {
io.key_ctrl = pressed
}
VirtualKeyCode::LAlt | VirtualKeyCode::RAlt => io.key_alt = pressed,
VirtualKeyCode::LWin | VirtualKeyCode::RWin => io.key_super = pressed,
_ => (),
}
}
WindowEvent::ReceivedCharacter(ch) if window_id != main_window.id() => {
let io = imgui.io_mut();
// Exclude the backspace key ('\u{7f}'). Otherwise we will insert this char and then
// delete it.
if ch != '\u{7f}' {
io.add_input_character(ch)
}
}
WindowEvent::MouseWheel {
delta,
phase: TouchPhase::Moved,
..
} if window_id != main_window.id() => match delta {
MouseScrollDelta::LineDelta(h, v) => {
let io = imgui.io_mut();
io.mouse_wheel_h = h;
io.mouse_wheel = v;
}
MouseScrollDelta::PixelDelta(pos) => {
let io = imgui.io_mut();
let pos = pos.to_logical::<f64>(self.hidpi_factor);
match pos.x.partial_cmp(&0.0) {
Some(Ordering::Greater) => io.mouse_wheel_h += 1.0,
Some(Ordering::Less) => io.mouse_wheel_h -= 1.0,
_ => (),
}
match pos.y.partial_cmp(&0.0) {
Some(Ordering::Greater) => io.mouse_wheel += 1.0,
Some(Ordering::Less) => io.mouse_wheel -= 1.0,
_ => (),
}
}
},
WindowEvent::MouseInput { state, button, .. } if window_id != main_window.id() => {
let pressed = state == ElementState::Pressed;
match button {
MouseButton::Left => self.mouse_buttons[0].set(pressed),
MouseButton::Right => self.mouse_buttons[1].set(pressed),
MouseButton::Middle => self.mouse_buttons[2].set(pressed),
MouseButton::Other(idx @ 0..=4) => {
self.mouse_buttons[idx as usize].set(pressed)
}
_ => (),
}
}
_ => {}
}
}
}
fn handle_window_event(&mut self, io: &mut Io, window: &Window, event: &WindowEvent) {
match *event {
WindowEvent::Resized(physical_size) => {