Smooth scrolling (#423)

* parse viewport events

* progress toward pixel scrolling

* ITS WORKING

* fix basic scrolling gaps

* add limit to number of old surfaces to store

* set cursor destination based on rendered location not global grid
macos-click-through
Keith Simmons 4 years ago committed by GitHub
parent 38c5538186
commit 1d981f3c2c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -216,6 +216,13 @@ pub enum RedrawEvent {
scrolled: bool,
separator_character: String,
},
WindowViewport {
grid: u64,
top_line: f64,
bottom_line: f64,
current_line: f64,
current_column: f64,
},
CommandLineShow {
content: StyledContent,
position: u64,
@ -732,6 +739,27 @@ fn parse_msg_set_pos(msg_set_pos_arguments: Vec<Value>) -> Result<RedrawEvent> {
})
}
fn parse_win_viewport(win_viewport_arguments: Vec<Value>) -> Result<RedrawEvent> {
let values = [
Value::Nil,
Value::Nil,
Value::Nil,
Value::Nil,
Value::Nil,
Value::Nil,
];
let [grid, _window, top_line, bottom_line, current_line, current_column] =
extract_values(win_viewport_arguments, values)?;
Ok(RedrawEvent::WindowViewport {
grid: parse_u64(grid)?,
top_line: parse_f64(top_line)?,
bottom_line: parse_f64(bottom_line)?,
current_line: parse_f64(current_line)?,
current_column: parse_f64(current_column)?,
})
}
fn parse_styled_content(line: Value) -> Result<StyledContent> {
parse_array(line)?
.into_iter()
@ -898,6 +926,7 @@ pub fn parse_redraw_event(event_value: Value) -> Result<Vec<RedrawEvent>> {
"win_hide" => Some(parse_win_hide(event_parameters)?),
"win_close" => Some(parse_win_close(event_parameters)?),
"msg_set_pos" => Some(parse_msg_set_pos(event_parameters)?),
"win_viewport" => Some(parse_win_viewport(event_parameters)?),
"cmdline_show" => Some(parse_cmdline_show(event_parameters)?),
"cmdline_pos" => Some(parse_cmdline_pos(event_parameters)?),
"cmdline_special_char" => Some(parse_cmdline_special_char(event_parameters)?),

@ -35,7 +35,6 @@ pub struct CursorMode {
#[derive(Clone, PartialEq)]
pub struct Cursor {
pub position: (f64, f64),
pub grid_position: (u64, u64),
pub parent_window_id: u64,
pub shape: CursorShape,
@ -52,7 +51,6 @@ pub struct Cursor {
impl Cursor {
pub fn new() -> Cursor {
Cursor {
position: (0.0, 0.0),
grid_position: (0, 0),
parent_window_id: 0,
shape: CursorShape::Block,

@ -54,6 +54,7 @@ pub enum DrawCommand {
UpdateCursor(Cursor),
FontChanged(String),
DefaultStyleChanged(Style),
ModeChanged(EditorMode),
}
pub enum WindowCommand {
@ -71,6 +72,7 @@ impl fmt::Debug for DrawCommand {
DrawCommand::UpdateCursor(_) => write!(formatter, "UpdateCursor"),
DrawCommand::FontChanged(_) => write!(formatter, "FontChanged"),
DrawCommand::DefaultStyleChanged(_) => write!(formatter, "DefaultStyleChanged"),
DrawCommand::ModeChanged(_) => write!(formatter, "ModeChanged"),
}
}
}
@ -80,7 +82,6 @@ pub struct Editor {
pub cursor: Cursor,
pub defined_styles: HashMap<u64, Arc<Style>>,
pub mode_list: Vec<CursorMode>,
pub current_mode: EditorMode,
pub draw_command_batcher: Arc<DrawCommandBatcher>,
pub window_command_sender: Sender<WindowCommand>,
}
@ -95,7 +96,6 @@ impl Editor {
cursor: Cursor::new(),
defined_styles: HashMap::new(),
mode_list: Vec::new(),
current_mode: EditorMode::Unknown(String::from("")),
draw_command_batcher: Arc::new(DrawCommandBatcher::new(batched_draw_command_sender)),
window_command_sender,
}
@ -113,8 +113,10 @@ impl Editor {
RedrawEvent::ModeChange { mode, mode_index } => {
if let Some(cursor_mode) = self.mode_list.get(mode_index as usize) {
self.cursor.change_mode(cursor_mode, &self.defined_styles);
self.current_mode = mode;
}
self.draw_command_batcher
.queue(DrawCommand::ModeChanged(mode))
.ok();
}
RedrawEvent::MouseOn => {
self.window_command_sender
@ -218,6 +220,12 @@ impl Editor {
RedrawEvent::MessageSetPosition { grid, row, .. } => {
self.set_message_position(grid, row)
}
RedrawEvent::WindowViewport {
grid,
top_line,
bottom_line,
..
} => self.send_updated_viewport(grid, top_line, bottom_line),
_ => {}
};
}
@ -385,24 +393,14 @@ impl Editor {
fn send_cursor_info(&mut self) {
let (grid_left, grid_top) = self.cursor.grid_position;
match self.get_window_top_left(self.cursor.parent_window_id) {
Some((window_left, window_top)) => {
self.cursor.position =
(window_left + grid_left as f64, window_top + grid_top as f64);
if let Some(window) = self.windows.get(&self.cursor.parent_window_id) {
let (character, double_width) =
window.get_cursor_character(grid_left, grid_top);
let (character, double_width) = window.get_cursor_character(grid_left, grid_top);
self.cursor.character = character;
self.cursor.double_width = double_width;
}
}
None => {
self.cursor.position = (grid_left as f64, grid_top as f64);
} else {
self.cursor.double_width = false;
self.cursor.character = " ".to_string();
}
}
self.draw_command_batcher
.queue(DrawCommand::UpdateCursor(self.cursor.clone()))
.ok();
@ -419,6 +417,14 @@ impl Editor {
}
}
}
fn send_updated_viewport(&mut self, grid: u64, top_line: f64, bottom_line: f64) {
if let Some(window) = self.windows.get_mut(&grid) {
window.update_viewport(top_line, bottom_line);
} else {
warn!("viewport event received before window initialized");
}
}
}
pub fn start_editor(

@ -38,6 +38,10 @@ pub enum WindowDrawCommand {
Show,
Hide,
Close,
Viewport {
top_line: f64,
bottom_line: f64,
},
}
impl fmt::Debug for WindowDrawCommand {
@ -58,6 +62,14 @@ impl fmt::Debug for WindowDrawCommand {
WindowDrawCommand::Show => write!(formatter, "Show"),
WindowDrawCommand::Hide => write!(formatter, "Hide"),
WindowDrawCommand::Close => write!(formatter, "Close"),
WindowDrawCommand::Viewport {
top_line,
bottom_line,
} => write!(
formatter,
"Viewport {{ top: {}, bottom: {} }}",
top_line, bottom_line
),
}
}
}
@ -375,4 +387,11 @@ impl Window {
pub fn close(&self) {
self.send_command(WindowDrawCommand::Close);
}
pub fn update_viewport(&self, top_line: f64, bottom_line: f64) {
self.send_command(WindowDrawCommand::Viewport {
top_line,
bottom_line,
});
}
}

@ -1,8 +1,12 @@
mod blink;
mod cursor_vfx;
use std::collections::HashMap;
use skulpin::skia_safe::{Canvas, Paint, Path, Point};
use super::RenderedWindow;
use crate::bridge::EditorMode;
use crate::editor::{Colors, Cursor, CursorShape};
use crate::redraw_scheduler::REDRAW_SCHEDULER;
use crate::renderer::animation_utils::*;
@ -178,6 +182,7 @@ impl Corner {
pub struct CursorRenderer {
pub corners: Vec<Corner>,
cursor: Cursor,
destination: Point,
blink_status: BlinkStatus,
previous_cursor_shape: Option<CursorShape>,
cursor_vfx: Option<Box<dyn cursor_vfx::CursorVfx>>,
@ -189,9 +194,9 @@ impl CursorRenderer {
let mut renderer = CursorRenderer {
corners: vec![Corner::new(); 4],
cursor: Cursor::new(),
destination: (0.0, 0.0).into(),
blink_status: BlinkStatus::new(),
previous_cursor_shape: None,
//cursor_vfx: Box::new(PointHighlight::new(Point{x:0.0, y:0.0}, HighlightMode::Ripple)),
cursor_vfx: None,
previous_vfx_mode: cursor_vfx::VfxMode::Disabled,
};
@ -233,10 +238,36 @@ impl CursorRenderer {
.collect::<Vec<Corner>>();
}
pub fn update_cursor_destination(
&mut self,
font_width: f32,
font_height: f32,
windows: &HashMap<u64, RenderedWindow>,
) {
let (cursor_grid_x, cursor_grid_y) = self.cursor.grid_position;
if let Some(window) = windows.get(&self.cursor.parent_window_id) {
self.destination = (
(cursor_grid_x as f32 + window.grid_current_position.x) * font_width,
(cursor_grid_y as f32 + window.grid_current_position.y
- (window.current_scroll - window.current_surfaces.top_line))
* font_height,
)
.into();
} else {
self.destination = (
cursor_grid_x as f32 * font_width,
cursor_grid_y as f32 * font_height,
)
.into();
}
}
pub fn draw(
&mut self,
default_colors: &Colors,
font_size: (f32, f32),
current_mode: &EditorMode,
shaper: &mut CachingShaper,
canvas: &mut Canvas,
dt: f32,
@ -253,7 +284,6 @@ impl CursorRenderer {
let mut paint = Paint::new(skulpin::skia_safe::colors::WHITE, None);
paint.set_anti_alias(settings.antialiasing);
let (grid_x, grid_y) = self.cursor.position;
let character = self.cursor.character.clone();
let font_width = match (self.cursor.double_width, &self.cursor.shape) {
@ -263,14 +293,9 @@ impl CursorRenderer {
let font_dimensions: Point = (font_width, font_height).into();
let in_insert_mode = false;
// {
// let editor = EDITOR.lock();
// matches!(editor.current_mode, EditorMode::Insert)
// };
let in_insert_mode = matches!(current_mode, EditorMode::Insert);
let destination: Point = (grid_x as f32 * font_width, grid_y as f32 * font_height).into();
let center_destination = destination + font_dimensions * 0.5;
let center_destination = self.destination + font_dimensions * 0.5;
let new_cursor = Some(self.cursor.shape.clone());
if self.previous_cursor_shape != new_cursor {
@ -340,7 +365,7 @@ impl CursorRenderer {
let blobs = &shaper.shape_cached(&character, false, false);
for blob in blobs.iter() {
canvas.draw_text_blob(&blob, destination, &paint);
canvas.draw_text_blob(&blob, self.destination, &paint);
}
canvas.restore();

@ -16,6 +16,7 @@ pub use caching_shaper::CachingShaper;
pub use font_options::*;
pub use rendered_window::{RenderedWindow, WindowDrawDetails};
use crate::bridge::EditorMode;
use crate::editor::{Colors, DrawCommand, Style, WindowDrawCommand};
use crate::settings::*;
use cursor_renderer::CursorRenderer;
@ -24,21 +25,27 @@ use cursor_renderer::CursorRenderer;
#[derive(Clone)]
pub struct RendererSettings {
animation_length: f32,
position_animation_length: f32,
scroll_animation_length: f32,
floating_opacity: f32,
floating_blur: bool,
}
pub fn initialize_settings() {
SETTINGS.set(&RendererSettings {
animation_length: 0.15,
position_animation_length: 0.15,
scroll_animation_length: 0.3,
floating_opacity: 0.7,
floating_blur: true,
});
register_nvim_setting!(
"window_animation_length",
RendererSettings::animation_length
"window_position_animation_length",
RendererSettings::position_animation_length
);
register_nvim_setting!(
"window_scroll_animation_length",
RendererSettings::scroll_animation_length
);
register_nvim_setting!(
"floating_window_opacity",
@ -53,6 +60,7 @@ pub struct Renderer {
rendered_windows: HashMap<u64, RenderedWindow>,
cursor_renderer: CursorRenderer,
pub current_mode: EditorMode,
pub paint: Paint,
pub shaper: CachingShaper,
pub default_style: Arc<Style>,
@ -67,6 +75,7 @@ impl Renderer {
let rendered_windows = HashMap::new();
let cursor_renderer = CursorRenderer::new();
let current_mode = EditorMode::Unknown(String::from(""));
let mut paint = Paint::new(colors::WHITE, None);
paint.set_anti_alias(false);
let mut shaper = CachingShaper::new();
@ -82,6 +91,7 @@ impl Renderer {
rendered_windows,
cursor_renderer,
current_mode,
paint,
shaper,
default_style,
@ -92,14 +102,12 @@ impl Renderer {
}
}
fn update_font(&mut self, guifont_setting: &str) -> bool {
let updated = self.shaper.update_font(guifont_setting);
if updated {
fn update_font(&mut self, guifont_setting: &str) {
if self.shaper.update_font(guifont_setting) {
let (font_width, font_height) = self.shaper.font_base_dimensions();
self.font_width = font_width;
self.font_height = font_height.ceil();
}
updated
}
fn compute_text_region(&self, grid_pos: (u64, u64), cell_width: u64) -> Rect {
@ -111,6 +119,15 @@ impl Renderer {
Rect::new(x, y, x + width, y + height)
}
fn get_default_background(&self) -> Color {
self.default_style
.colors
.background
.clone()
.unwrap()
.to_color()
}
fn draw_background(
&mut self,
canvas: &mut Canvas,
@ -211,7 +228,6 @@ impl Renderer {
}
DrawCommand::Window { grid_id, command } => {
if let Some(rendered_window) = self.rendered_windows.remove(&grid_id) {
warn!("Window positioned {}", grid_id);
let rendered_window = rendered_window.handle_window_draw_command(self, command);
self.rendered_windows.insert(grid_id, rendered_window);
} else if let WindowDrawCommand::Position {
@ -240,13 +256,14 @@ impl Renderer {
self.cursor_renderer.update_cursor(new_cursor);
}
DrawCommand::FontChanged(new_font) => {
if self.update_font(&new_font) {
// Resize all the grids
}
self.update_font(&new_font);
}
DrawCommand::DefaultStyleChanged(new_style) => {
self.default_style = Arc::new(new_style);
}
DrawCommand::ModeChanged(new_mode) => {
self.current_mode = new_mode;
}
_ => {}
}
}
@ -291,6 +308,10 @@ impl Renderer {
coordinate_system_helper.use_logical_coordinates(root_canvas);
let default_background = self.get_default_background();
let font_width = self.font_width;
let font_height = self.font_height;
let windows: Vec<&mut RenderedWindow> = {
let (mut root_windows, mut floating_windows): (
Vec<&mut RenderedWindow>,
@ -313,16 +334,28 @@ impl Renderer {
};
let settings = SETTINGS.get::<RendererSettings>();
let font_width = self.font_width;
let font_height = self.font_height;
self.window_regions = windows
.into_iter()
.map(|window| window.draw(root_canvas, &settings, font_width, font_height, dt))
.map(|window| {
window.draw(
root_canvas,
&settings,
default_background,
font_width,
font_height,
dt,
)
})
.collect();
let windows = &self.rendered_windows;
self.cursor_renderer
.update_cursor_destination(font_width, font_height, windows);
self.cursor_renderer.draw(
&self.default_style.colors,
(self.font_width, self.font_height),
&self.current_mode,
&mut self.shaper,
root_canvas,
dt,

@ -1,3 +1,6 @@
use std::collections::VecDeque;
use std::iter;
use skulpin::skia_safe::canvas::{SaveLayerRec, SrcRectConstraint};
use skulpin::skia_safe::gpu::SurfaceOrigin;
use skulpin::skia_safe::{
@ -11,14 +14,10 @@ use crate::redraw_scheduler::REDRAW_SCHEDULER;
fn build_window_surface(
parent_canvas: &mut Canvas,
renderer: &Renderer,
grid_width: u64,
grid_height: u64,
pixel_width: i32,
pixel_height: i32,
) -> Surface {
let dimensions = (
(grid_width as f32 * renderer.font_width) as i32,
(grid_height as f32 * renderer.font_height) as i32,
);
let dimensions = (pixel_width, pixel_height);
let mut context = parent_canvas.gpu_context().unwrap();
let budgeted = Budgeted::Yes;
let parent_image_info = parent_canvas.image_info();
@ -41,29 +40,84 @@ fn build_window_surface(
.expect("Could not create surface")
}
fn build_window_surface_with_grid_size(
parent_canvas: &mut Canvas,
renderer: &Renderer,
grid_width: u64,
grid_height: u64,
) -> Surface {
let pixel_width = (grid_width as f32 * renderer.font_width) as i32;
let pixel_height = (grid_height as f32 * renderer.font_height) as i32;
build_window_surface(parent_canvas, pixel_width, pixel_height)
}
fn build_background_window_surface(
parent_canvas: &mut Canvas,
renderer: &Renderer,
grid_width: u64,
grid_height: u64,
) -> Surface {
let mut surface = build_window_surface(parent_canvas, renderer, grid_width, grid_height);
let mut surface =
build_window_surface_with_grid_size(parent_canvas, renderer, grid_width, grid_height);
let canvas = surface.canvas();
canvas.clear(
renderer
.default_style
.colors
.background
.clone()
.unwrap()
.to_color(),
);
canvas.clear(renderer.get_default_background());
surface
}
fn clone_window_surface(surface: &mut Surface) -> Surface {
let snapshot = surface.image_snapshot();
let mut canvas = surface.canvas();
let mut new_surface = build_window_surface(&mut canvas, snapshot.width(), snapshot.height());
let new_canvas = new_surface.canvas();
new_canvas.draw_image(snapshot, (0.0, 0.0), None);
new_surface
}
pub struct SurfacePair {
background: Surface,
foreground: Surface,
pub top_line: f32,
bottom_line: f32,
}
impl SurfacePair {
fn new(
parent_canvas: &mut Canvas,
renderer: &Renderer,
grid_width: u64,
grid_height: u64,
top_line: f32,
bottom_line: f32,
) -> SurfacePair {
let background =
build_background_window_surface(parent_canvas, renderer, grid_width, grid_height);
let foreground =
build_window_surface_with_grid_size(parent_canvas, renderer, grid_width, grid_height);
SurfacePair {
background,
foreground,
top_line,
bottom_line,
}
}
fn clone(&mut self) -> SurfacePair {
let new_background = clone_window_surface(&mut self.background);
let new_foreground = clone_window_surface(&mut self.foreground);
SurfacePair {
background: new_background,
foreground: new_foreground,
top_line: self.top_line,
bottom_line: self.bottom_line,
}
}
}
pub struct RenderedWindow {
background_surface: Surface,
foreground_surface: Surface,
old_surfaces: VecDeque<SurfacePair>,
pub current_surfaces: SurfacePair,
pub id: u64,
pub hidden: bool,
pub floating: bool,
@ -72,9 +126,14 @@ pub struct RenderedWindow {
grid_height: u64,
grid_start_position: Point,
grid_current_position: Point,
pub grid_current_position: Point,
grid_destination: Point,
t: f32,
position_t: f32,
start_scroll: f32,
pub current_scroll: f32,
scroll_destination: f32,
scroll_t: f32,
}
pub struct WindowDrawDetails {
@ -92,14 +151,12 @@ impl RenderedWindow {
grid_width: u64,
grid_height: u64,
) -> RenderedWindow {
let background_surface =
build_background_window_surface(parent_canvas, renderer, grid_width, grid_height);
let foreground_surface =
build_window_surface(parent_canvas, renderer, grid_width, grid_height);
let current_surfaces =
SurfacePair::new(parent_canvas, renderer, grid_width, grid_height, 0.0, 0.0);
RenderedWindow {
background_surface,
foreground_surface,
old_surfaces: VecDeque::new(),
current_surfaces,
id,
hidden: false,
floating: false,
@ -110,7 +167,12 @@ impl RenderedWindow {
grid_start_position: grid_position,
grid_current_position: grid_position,
grid_destination: grid_position,
t: 2.0, // 2.0 is out of the 0.0 to 1.0 range and stops animation
position_t: 2.0, // 2.0 is out of the 0.0 to 1.0 range and stops animation
start_scroll: 0.0,
current_scroll: 0.0,
scroll_destination: 0.0,
scroll_t: 2.0, // 2.0 is out of the 0.0 to 1.0 range and stops animation
}
}
@ -127,31 +189,52 @@ impl RenderedWindow {
}
pub fn update(&mut self, settings: &RendererSettings, dt: f32) -> bool {
if (self.t - 1.0).abs() < std::f32::EPSILON {
return false;
}
let mut animating = false;
if (self.t - 1.0).abs() < std::f32::EPSILON {
{
if (self.position_t - 1.0).abs() < std::f32::EPSILON {
// We are at destination, move t out of 0-1 range to stop the animation
self.t = 2.0;
self.position_t = 2.0;
} else {
self.t = (self.t + dt / settings.animation_length).min(1.0);
animating = true;
self.position_t =
(self.position_t + dt / settings.position_animation_length).min(1.0);
}
self.grid_current_position = ease_point(
ease_out_expo,
self.grid_start_position,
self.grid_destination,
self.t,
self.position_t,
);
}
{
if (self.scroll_t - 1.0).abs() < std::f32::EPSILON {
// We are at destination, move t out of 0-1 range to stop the animation
self.scroll_t = 2.0;
self.old_surfaces.clear();
} else {
animating = true;
self.scroll_t = (self.scroll_t + dt / settings.scroll_animation_length).min(1.0);
}
self.current_scroll = ease(
ease_out_expo,
self.start_scroll,
self.scroll_destination,
self.scroll_t,
);
}
true
animating
}
pub fn draw(
&mut self,
root_canvas: &mut Canvas,
settings: &RendererSettings,
default_background: Color,
font_width: f32,
font_height: f32,
dt: f32,
@ -163,7 +246,6 @@ impl RenderedWindow {
let pixel_region = self.pixel_region(font_width, font_height);
root_canvas.save();
root_canvas.clip_rect(&pixel_region, None, Some(false));
if self.floating && settings.floating_blur {
@ -176,26 +258,55 @@ impl RenderedWindow {
}
let mut paint = Paint::default();
// We want each surface to overwrite the one underneath and will use layers to ensure
// only lower priority surfaces will get clobbered and not the underlying windows
paint.set_blend_mode(BlendMode::Src);
{
// Save layer so that setting the blend mode doesn't effect the blur
root_canvas.save_layer(&SaveLayerRec::default());
let mut a = 255;
if self.floating {
let a = (settings.floating_opacity.min(1.0).max(0.0) * 255.0) as u8;
paint.set_color(Color::from_argb(a, 255, 255, 255));
a = (settings.floating_opacity.min(1.0).max(0.0) * 255.0) as u8;
}
self.background_surface.draw(
paint.set_color(default_background.with_a(a));
root_canvas.draw_rect(pixel_region, &paint);
paint.set_color(Color::from_argb(a, 255, 255, 255));
for surface_pair in iter::once(&mut self.current_surfaces)
.chain(self.old_surfaces.iter_mut())
.rev()
{
let scroll_offset =
surface_pair.top_line * font_height - self.current_scroll * font_height;
surface_pair.background.draw(
root_canvas.as_mut(),
(pixel_region.left(), pixel_region.top()),
(pixel_region.left(), pixel_region.top() + scroll_offset),
Some(&paint),
);
}
root_canvas.restore();
}
let mut paint = Paint::default();
paint.set_blend_mode(BlendMode::SrcOver);
self.foreground_surface.draw(
{
// Save layer so that text may safely overwrite images underneath
root_canvas.save_layer(&SaveLayerRec::default());
for surface_pair in iter::once(&mut self.current_surfaces)
.chain(self.old_surfaces.iter_mut())
.rev()
{
let scroll_offset =
surface_pair.top_line * font_height - self.current_scroll * font_height;
surface_pair.foreground.draw(
root_canvas.as_mut(),
(pixel_region.left(), pixel_region.top()),
(pixel_region.left(), pixel_region.top() + scroll_offset),
Some(&paint),
);
}
root_canvas.restore();
}
if self.floating {
root_canvas.restore();
@ -229,13 +340,13 @@ impl RenderedWindow {
if self.grid_start_position.x.abs() > f32::EPSILON
|| self.grid_start_position.y.abs() > f32::EPSILON
{
self.t = 0.0; // Reset animation as we have a new destination.
self.position_t = 0.0; // Reset animation as we have a new destination.
self.grid_start_position = self.grid_current_position;
self.grid_destination = new_destination;
} else {
// We don't want to animate since the window is animating out of the start location,
// so we set t to 2.0 to stop animations.
self.t = 2.0;
self.position_t = 2.0;
self.grid_start_position = new_destination;
self.grid_destination = new_destination;
}
@ -243,25 +354,33 @@ impl RenderedWindow {
if grid_width != self.grid_width || grid_height != self.grid_height {
{
let mut old_background = self.background_surface;
self.background_surface = build_background_window_surface(
let mut old_background = self.current_surfaces.background;
self.current_surfaces.background = build_background_window_surface(
old_background.canvas(),
&renderer,
grid_width,
grid_height,
);
old_background.draw(self.background_surface.canvas(), (0.0, 0.0), None);
old_background.draw(
self.current_surfaces.background.canvas(),
(0.0, 0.0),
None,
);
}
{
let mut old_foreground = self.foreground_surface;
self.foreground_surface = build_window_surface(
let mut old_foreground = self.current_surfaces.foreground;
self.current_surfaces.foreground = build_window_surface_with_grid_size(
old_foreground.canvas(),
&renderer,
grid_width,
grid_height,
);
old_foreground.draw(self.foreground_surface.canvas(), (0.0, 0.0), None);
old_foreground.draw(
self.current_surfaces.foreground.canvas(),
(0.0, 0.0),
None,
);
}
self.grid_width = grid_width;
@ -272,7 +391,7 @@ impl RenderedWindow {
if self.hidden {
self.hidden = false;
self.t = 2.0; // We don't want to animate since the window is becoming visible, so we set t to 2.0 to stop animations.
self.position_t = 2.0; // We don't want to animate since the window is becoming visible, so we set t to 2.0 to stop animations.
self.grid_start_position = new_destination;
self.grid_destination = new_destination;
}
@ -287,7 +406,7 @@ impl RenderedWindow {
let grid_position = (window_left, window_top);
{
let mut background_canvas = self.background_surface.canvas();
let mut background_canvas = self.current_surfaces.background.canvas();
renderer.draw_background(
&mut background_canvas,
grid_position,
@ -297,7 +416,7 @@ impl RenderedWindow {
}
{
let mut foreground_canvas = self.foreground_surface.canvas();
let mut foreground_canvas = self.current_surfaces.foreground.canvas();
renderer.draw_foreground(
&mut foreground_canvas,
&text,
@ -323,8 +442,8 @@ impl RenderedWindow {
);
{
let background_snapshot = self.background_surface.image_snapshot();
let background_canvas = self.background_surface.canvas();
let background_snapshot = self.current_surfaces.background.image_snapshot();
let background_canvas = self.current_surfaces.background.canvas();
background_canvas.save();
background_canvas.clip_rect(scrolled_region, None, Some(false));
@ -346,8 +465,8 @@ impl RenderedWindow {
}
{
let foreground_snapshot = self.foreground_surface.image_snapshot();
let foreground_canvas = self.foreground_surface.canvas();
let foreground_snapshot = self.current_surfaces.foreground.image_snapshot();
let foreground_canvas = self.current_surfaces.foreground.canvas();
foreground_canvas.save();
foreground_canvas.clip_rect(scrolled_region, None, Some(false));
@ -369,16 +488,16 @@ impl RenderedWindow {
}
}
WindowDrawCommand::Clear => {
let background_canvas = self.background_surface.canvas();
self.background_surface = build_background_window_surface(
let background_canvas = self.current_surfaces.background.canvas();
self.current_surfaces.background = build_background_window_surface(
background_canvas,
&renderer,
self.grid_width,
self.grid_height,
);
let foreground_canvas = self.foreground_surface.canvas();
self.foreground_surface = build_window_surface(
let foreground_canvas = self.current_surfaces.foreground.canvas();
self.current_surfaces.foreground = build_window_surface_with_grid_size(
foreground_canvas,
&renderer,
self.grid_width,
@ -388,11 +507,34 @@ impl RenderedWindow {
WindowDrawCommand::Show => {
if self.hidden {
self.hidden = false;
self.t = 2.0; // We don't want to animate since the window is becoming visible, so we set t to 2.0 to stop animations.
self.position_t = 2.0; // We don't want to animate since the window is becoming visible, so we set t to 2.0 to stop animations.
self.grid_start_position = self.grid_destination;
}
}
WindowDrawCommand::Hide => self.hidden = true,
WindowDrawCommand::Viewport {
top_line,
bottom_line,
} => {
if (self.current_surfaces.top_line - top_line as f32).abs() > std::f32::EPSILON {
let mut new_surfaces = self.current_surfaces.clone();
new_surfaces.top_line = top_line as f32;
new_surfaces.bottom_line = bottom_line as f32;
// Set new target viewport position and initialize animation timer
self.start_scroll = self.current_scroll;
self.scroll_destination = top_line as f32;
self.scroll_t = 0.0;
let current_surfaces = self.current_surfaces;
self.current_surfaces = new_surfaces;
self.old_surfaces.push_back(current_surfaces);
if self.old_surfaces.len() > 5 {
self.old_surfaces.pop_front();
}
}
}
_ => {}
};

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