Initial Air Freshener plugin implementation
This commit is contained in:
Ebu
250
src/gui.rs
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250
src/gui.rs
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use crate::{parameters::PluginParams, window::EditorWindow};
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use baseview::{Event, EventStatus, MouseButton, MouseEvent, WindowEvent, WindowHandler};
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use ebu_dsp::Rect;
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use femtovg::{Canvas, Color, ImageFlags, ImageId, Paint, Path, renderer::OpenGl};
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use nih_plug::prelude::*;
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use std::sync::Arc;
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//const DROID_SANS_FONT: &'static [u8] = include_bytes!("../resources/fonts/DroidSans.ttf");
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const FRESHENER_IMAGE: &'static [u8] = include_bytes!("../assets/AirFreshener/sheet.png");
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const NOT_SO_FRESH_BG_IMAGE: &'static [u8] = include_bytes!("../assets/AirFreshener/bg0.png");
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const FRESH_DUMBLEDORE_BG_IMAGE: &'static [u8] =
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include_bytes!("../assets/AirFreshener/bg1.png");
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const FRESHENER_FRAMES: u32 = 256;
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const FRESHENER_FRAMES_X: u32 = 20;
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const FRESHENER_FRAMES_Y: u32 = 13;
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const FRESHENER_FRAME_WIDTH: f32 = 73.0;
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const FRESHENER_FRAME_HEIGHT: f32 = 144.0;
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pub struct PluginGui {
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// font: FontId,
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params: Arc<PluginParams>,
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canvas: Canvas<OpenGl>,
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_gui_context: Arc<dyn GuiContext>,
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scaling_factor: f32,
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freshener_image: ImageId,
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not_so_fresh_image: ImageId,
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fresh_dumbledore_image: ImageId,
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freshener_bounds: Rect<f32>,
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dirty: bool,
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mouse_position: (f32, f32),
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drag_start_mouse_pos: (f32, f32),
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drag_start_parameter_value: f32,
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dragging: bool,
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}
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impl PluginGui {
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pub fn new(
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window: &mut baseview::Window<'_>,
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gui_context: Arc<dyn GuiContext>,
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params: Arc<PluginParams>,
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scaling_factor: f32,
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) -> Self {
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let context = window
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.gl_context()
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.expect("Failed to get window OpenGL context");
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unsafe {
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context.make_current();
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}
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let renderer = unsafe { OpenGl::new_from_function(|s| context.get_proc_address(s)) }
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.expect("Failed to create femtovg renderer");
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let mut canvas = Canvas::new(renderer).expect("Failed to create femtovg canvas");
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let (width, height) = params.editor_state.size();
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canvas.set_size(width, height, scaling_factor);
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let le_fresh = canvas
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.load_image_mem(FRESHENER_IMAGE, ImageFlags::empty())
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.expect("Failed to load le fresh");
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let not_so_fresh_image = canvas
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.load_image_mem(NOT_SO_FRESH_BG_IMAGE, ImageFlags::empty())
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.expect("Failed to load not so fresh");
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let fresh_dumbledore_image = canvas
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.load_image_mem(FRESH_DUMBLEDORE_BG_IMAGE, ImageFlags::empty())
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.expect("Failed to load fresh dumbledore");
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//let font = canvas
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// .add_font_mem(DROID_SANS_FONT)
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// .expect("Failed to load font");
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unsafe {
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context.make_not_current();
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}
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Self {
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//font,
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params,
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canvas,
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_gui_context: gui_context,
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scaling_factor,
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dirty: true,
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mouse_position: (0.0, 0.0),
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drag_start_mouse_pos: (0.0, 0.0),
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drag_start_parameter_value: 0.0,
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dragging: false,
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freshener_image: le_fresh,
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fresh_dumbledore_image,
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not_so_fresh_image,
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freshener_bounds: Rect {
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x: 120.0,
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y: 20.0,
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width: FRESHENER_FRAME_WIDTH,
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height: FRESHENER_FRAME_HEIGHT,
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},
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}
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}
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}
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impl WindowHandler for PluginGui {
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fn on_frame(&mut self, window: &mut baseview::Window) {
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const WINDOW_WIDTH: f32 = EditorWindow::WINDOW_SIZE.0 as f32;
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const WINDOW_HEIGHT: f32 = EditorWindow::WINDOW_SIZE.1 as f32;
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if !self.dirty {
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//return;
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}
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let context = window
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.gl_context()
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.expect("Failed to get window OpenGL context");
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unsafe {
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context.make_current();
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}
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let (width, height) = (self.canvas.width(), self.canvas.height());
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self.canvas.reset();
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self.canvas
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.clear_rect(0, 0, width, height, Color::rgbaf(0.0, 0.0, 0.0, 1.0));
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let mut full_window_path = Path::new();
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full_window_path.rect(
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0.0,
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0.0,
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EditorWindow::WINDOW_SIZE.0 as f32,
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EditorWindow::WINDOW_SIZE.1 as f32,
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);
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let mut freshener_path = Path::new();
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freshener_path.rect(
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self.freshener_bounds.x,
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self.freshener_bounds.y,
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self.freshener_bounds.width,
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self.freshener_bounds.height,
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);
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let bbox = self.canvas.path_bbox(&freshener_path);
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let frame_index = (self.params.freshness.unmodulated_normalized_value()
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* (FRESHENER_FRAMES - 1) as f32)
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.floor();
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let frame_x = (frame_index % FRESHENER_FRAMES_X as f32).floor();
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let frame_y = (frame_index / FRESHENER_FRAMES_X as f32).floor();
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self.canvas.fill_path(
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&full_window_path,
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&Paint::image(
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self.not_so_fresh_image,
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0.0,
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0.0,
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WINDOW_WIDTH,
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WINDOW_HEIGHT,
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0.0,
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1.0,
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),
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);
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self.canvas.fill_path(
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&full_window_path,
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&Paint::image(
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self.fresh_dumbledore_image,
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0.0,
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0.0,
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WINDOW_WIDTH,
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WINDOW_HEIGHT,
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0.0,
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self.params.freshness.unmodulated_normalized_value(),
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),
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);
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self.canvas.fill_path(
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&freshener_path,
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&Paint::image(
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self.freshener_image,
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bbox.minx - frame_x * FRESHENER_FRAME_WIDTH,
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bbox.miny - frame_y * FRESHENER_FRAME_HEIGHT,
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self.freshener_bounds.width * FRESHENER_FRAMES_X as f32,
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self.freshener_bounds.height * FRESHENER_FRAMES_Y as f32,
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0.0,
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1.0,
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),
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);
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/*
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let debug = format!("{:#?}", self.params.comp_state.load());
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for (i, line) in debug.split('\n').enumerate() {
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self.canvas
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.fill_text(
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10.0,
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10.0 + i as f32 * 12.5,
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line,
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&Paint::color(Color::rgbf(1.0, 1.0, 1.0))
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.with_font(&[self.font])
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.with_font_size(12.5)
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.with_text_baseline(femtovg::Baseline::Top),
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)
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.expect("Failed to render font");
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}
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*/
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self.canvas.flush();
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context.swap_buffers();
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unsafe {
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context.make_not_current();
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}
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self.dirty = false;
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}
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fn on_event(
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&mut self,
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_window: &mut baseview::Window,
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event: baseview::Event,
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) -> baseview::EventStatus {
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let setter = ParamSetter::new(self._gui_context.as_ref());
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match event {
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Event::Window(WindowEvent::Resized(size)) => {
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let phys_size = size.physical_size();
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self.canvas
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.set_size(phys_size.width, phys_size.height, self.scaling_factor);
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self.dirty = true;
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}
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Event::Mouse(MouseEvent::CursorMoved { position, .. }) => {
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self.mouse_position = (position.x as f32, position.y as f32);
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if self.dragging {
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let delta = self.mouse_position.1 - self.drag_start_mouse_pos.1;
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let new_value =
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(self.drag_start_parameter_value - delta * 0.01).clamp(0.0, 1.0);
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setter.set_parameter_normalized(&self.params.freshness, new_value);
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}
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self.dirty = true;
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}
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Event::Mouse(MouseEvent::ButtonPressed { button, .. }) => {
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self.dragging = self.freshener_bounds.contains(self.mouse_position)
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&& button == MouseButton::Left;
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if self.dragging {
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setter.begin_set_parameter(&self.params.freshness);
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self.drag_start_mouse_pos = self.mouse_position;
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self.drag_start_parameter_value =
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self.params.freshness.unmodulated_normalized_value();
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}
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self.dirty = true;
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}
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Event::Mouse(MouseEvent::ButtonReleased { .. }) => {
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if self.dragging {
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setter.end_set_parameter(&self.params.freshness);
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}
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self.dragging = false;
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self.dirty = true;
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}
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_ => return EventStatus::Ignored,
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}
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EventStatus::Captured
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}
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}
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