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use super::JuliaDoubleView;
use super::MandelbrotDoubleView;
use crate::views::prelude::*;
use wgpu::{Device, CommandBuffer};
use winit::event::{MouseButton, ElementState};
pub struct DoubleViewManager {
left: MandelbrotDoubleView,
right: JuliaDoubleView,
window_size: WindowSize,
cursor_pos: Position,
prev_cursor_pos: Position,
ever_had_pos: bool
}
impl FractalViewManager for DoubleViewManager {
fn new(device: &wgpu::Device, size: winit::dpi::LogicalSize) -> Self {
Self {
left: MandelbrotDoubleView::new(device, size),
right: JuliaDoubleView::new(device, size),
window_size: WindowSize{size: [size.width as f32, size.height as f32]},
cursor_pos: Position{pos: [size.width as f32/2f32, size.height as f32/2f32]},
prev_cursor_pos: Position{pos: [0f32, 0f32]},
ever_had_pos: false,
}
}
fn render(
&mut self,
device: &AtomicDevice,
frame: &wgpu::SwapChainOutput,
) -> Vec<CommandBuffer> {
let buf1 = self.left.render(device, frame);
let buf2 = self.right.render(device, frame);
vec![buf1, buf2]
}
fn resized(&mut self, device: &AtomicDevice, window_size: &WindowSize) -> Vec<CommandBuffer> {
self.window_size = window_size.to_owned();
let buf1 = self.left.resized(device, window_size);
let buf2 = self.right.resized(device, window_size);
vec![buf1, buf2]
}
fn mouse_input(&mut self, button: MouseButton, state: ElementState) {
self.left.mouse_input(button, state);
self.right.mouse_input(button, state);
}
fn iterations(&mut self, device: &AtomicDevice, y_delta: f32) -> Vec<CommandBuffer> {
if self.cursor_pos.pos[0] < self.window_size.size[0] / 2f32 {
vec![self.left.iterations(device, y_delta)]
} else {
vec![self.right.iterations(device, y_delta)]
}
}
fn set_julia(&mut self, _device: &Arc<Mutex<Device>>, _state: bool) -> Option<Vec<CommandBuffer>> {
None
}
fn zoom(&mut self, device: &Arc<Mutex<Device>>, y_delta: f32) -> Vec<CommandBuffer> {
if self.cursor_pos.pos[0] < self.window_size.size[0] / 2f32 {
let buf1 = self.left.zoom(device, y_delta);
vec![buf1]
} else {
let buf2 = self.right.zoom(device, y_delta);
vec![buf2]
}
}
fn new_position(&mut self, device: &Arc<Mutex<Device>>, x: f32, y: f32, active: bool) -> Option<Vec<CommandBuffer>> {
let mut buf = vec![];
self.cursor_pos.pos = [x, y];
if x > self.window_size.size[0] / 2f32 {
log::info!("Sending new_position to right.");
if let Some(ok) = self.right.new_position(device, x, y, active) {
buf.push(ok);
}
} else {
log::info!("Sending new_position to left.");
let mut prev_position = self.left.data().prev_position;
if !self.ever_had_pos {
prev_position.pos = [x, y];
self.ever_had_pos = true;
}
if let Some(ok) = self.left.new_position(device, x,y, active) {
buf.push(ok);
if active {
self.prev_cursor_pos = self.left.data().prev_position;
log::info!("New position in left Mandelbrot after drag: {:?}", self.left.data().pos);
}
}
if !active {
let drag_pos = self.left.data().pos;
let zoom = self.left.data().zoom;
let mut pos = Position {pos:[0f32, 0f32]};
log::info!("Prev position: {:?}; Current position: {:?}", self.prev_cursor_pos, pos);
log::info!("Zoom: {:?}", zoom.zoom);
let half_w = self.window_size.size[0] * 0.5f32;
let half_h = self.window_size.size[1] * 0.5f32;
pos.pos[0] = (x - half_w) * zoom.zoom - drag_pos.pos[0];
pos.pos[1] = (half_h - y) * zoom.zoom + drag_pos.pos[1];
log::info!("Sending cursor pos {:?} to Julia", pos);
let temp_buf = device.lock().unwrap().create_buffer_mapped(
1,
wgpu::BufferUsage::COPY_SRC
).fill_from_slice(&[pos]);
let mut encoder =
device.lock().unwrap().create_command_encoder(&wgpu::CommandEncoderDescriptor { todo: 0 });
encoder.copy_buffer_to_buffer(
&temp_buf,
0,
&self.right.data().bufs.generator,
0,
*POSITION_SIZE
);
buf.push(encoder.finish());
}
}
if !buf.is_empty() {
Some(buf)
} else {
None
}
}
fn create_render_pipeline(&mut self, device: &Device) {
self.left.create_render_pipeline(device);
self.right.create_render_pipeline(device);
}
fn reload_fs(&mut self, device: &Arc<Mutex<Device>>) {
self.left.reload_fs(device);
self.right.reload_fs(device);
}
}