egui/emgui/src/emgui.rs
2019-01-07 08:54:37 +01:00

63 lines
1.9 KiB
Rust

use std::sync::Arc;
use crate::{font::Font, layout, style, types::GuiInput, Frame, Painter, RawInput};
/// Encapsulates input, layout and painting for ease of use.
pub struct Emgui {
pub last_input: RawInput,
pub data: Arc<layout::Data>,
pub style: style::Style,
pub painter: Painter,
}
impl Emgui {
pub fn new(font: Arc<Font>) -> Emgui {
Emgui {
last_input: Default::default(),
data: Arc::new(layout::Data::new(font.clone())),
style: Default::default(),
painter: Painter::new(font),
}
}
pub fn texture(&self) -> (u16, u16, &[u8]) {
self.painter.texture()
}
pub fn new_frame(&mut self, new_input: RawInput) {
let gui_input = GuiInput::from_last_and_new(&self.last_input, &new_input);
self.last_input = new_input;
let mut new_data = (*self.data).clone();
new_data.new_frame(gui_input);
self.data = Arc::new(new_data);
}
pub fn whole_screen_region(&mut self) -> layout::Region {
let size = self.data.input.screen_size;
layout::Region {
data: self.data.clone(),
id: Default::default(),
dir: layout::Direction::Vertical,
cursor: Default::default(),
bounding_size: Default::default(),
available_space: size,
}
}
pub fn options(&self) -> &layout::LayoutOptions {
&self.data.options
}
pub fn set_options(&mut self, options: layout::LayoutOptions) {
let mut new_data = (*self.data).clone();
new_data.options = options;
self.data = Arc::new(new_data);
}
pub fn paint(&mut self) -> Frame {
let gui_commands = self.data.graphics.lock().unwrap().drain();
let paint_commands = style::into_paint_commands(gui_commands, &self.style);
self.painter.paint(&paint_commands)
}
}