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Add Shape::Callback to do custom rendering inside of an egui UI (#1351)

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* Add Shape::Callback to do custom rendering inside of an egui UI
* Use Rc<glow::Context> everywhere
* Remove trait WebPainter
* Add glow::Context to epi::App::setup
This commit is contained in:
Emil Ernerfeldt
2022-03-14 13:25:11 +01:00
committed by GitHub
parent 002158050b
commit 6aee4997d4
34 changed files with 777 additions and 385 deletions
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27
egui_glium/src/painter.rs
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@@ -1,6 +1,8 @@
#![allow(deprecated)] // legacy implement_vertex macro
#![allow(semicolon_in_expressions_from_macros)] // glium::program! macro
use egui::epaint::Primitive;
use {
ahash::AHashMap,
egui::{emath::Rect, epaint::Mesh},
@@ -68,14 +70,14 @@ impl Painter {
display: &glium::Display,
target: &mut T,
pixels_per_point: f32,
clipped_meshes: Vec<egui::ClippedMesh>,
clipped_primitives: &[egui::ClippedPrimitive],
textures_delta: &egui::TexturesDelta,
) {
for (id, image_delta) in &textures_delta.set {
self.set_texture(display, *id, image_delta);
}
self.paint_meshes(display, target, pixels_per_point, clipped_meshes);
self.paint_primitives(display, target, pixels_per_point, clipped_primitives);
for &id in &textures_delta.free {
self.free_texture(id);
@@ -85,15 +87,26 @@ impl Painter {
/// Main entry-point for painting a frame.
/// You should call `target.clear_color(..)` before
/// and `target.finish()` after this.
pub fn paint_meshes<T: glium::Surface>(
pub fn paint_primitives<T: glium::Surface>(
&mut self,
display: &glium::Display,
target: &mut T,
pixels_per_point: f32,
clipped_meshes: Vec<egui::ClippedMesh>,
clipped_primitives: &[egui::ClippedPrimitive],
) {
for egui::ClippedMesh(clip_rect, mesh) in clipped_meshes {
self.paint_mesh(target, display, pixels_per_point, clip_rect, &mesh);
for egui::ClippedPrimitive {
clip_rect,
primitive,
} in clipped_primitives
{
match primitive {
Primitive::Mesh(mesh) => {
self.paint_mesh(target, display, pixels_per_point, clip_rect, mesh);
}
Primitive::Callback(_) => {
panic!("Custom rendering callbacks are not implemented in egui_glium");
}
}
}
}
@@ -103,7 +116,7 @@ impl Painter {
target: &mut T,
display: &glium::Display,
pixels_per_point: f32,
clip_rect: Rect,
clip_rect: &Rect,
mesh: &Mesh,
) {
debug_assert!(mesh.is_valid());