cvkg_render_native/
lib.rs

1//! # CVKG Agentic Development Guidelines (v1.2)
2//!
3//! All AI agents contributing to this crate MUST follow ALL seven rules:
4//!
5//! ── Karpathy Guidelines (1–4) ────────────────────────────────────────────
6//! 1. THINK FIRST     — State assumptions. Surface ambiguity. Push back on complexity.
7//! 2. STAY SIMPLE     — Minimum code. No speculative features. No unasked-for abstractions.
8//! 3. BE SURGICAL     — Touch only what's required. Own your orphans. Don't improve neighbors.
9//! 4. VERIFY GOALS    — Turn tasks into checkable criteria. Loop until they pass. Never commit broken.
10//!
11//! ── CVKG Extended Protocols (5–7) ────────────────────────────────────────
12//! 5. TRIPLE-PASS     — Read the target, its surrounding context, and its full call graph
13//                      at least THREE TIMES before making any edit or revision.
14//! 6. COMMENT ALL     — Every major pub fn, unsafe block, and non-trivial algorithm in
15//                      every .rs/.ts/.h/.wgsl file MUST have a descriptive doc comment.
16//                      Comments describe WHY and WHAT CONTRACT, not HOW mechanically.
17//! 7. MONITOR LOOPS   — Check every tool call / command for progress every 30 seconds.
18//                      After 3 consecutive identical failures, stop, write BLOCKED.md,
19//                      and move to unblocked work. Never silently accept a broken state.
20//!
21//! Sources:
22//   Karpathy: https://github.com/multica-ai/andrej-karpathy-skills
23//   CVKG Extended: Section 2 of the CVKG Design Specification
24
25//! Platform-native widget delegation using winit and AccessKit
26//!
27//! This crate provides platform-specific rendering backends for native desktop targets
28//  using winit for window/event handling and AccessKit for accessibility tree integration.
29
30use cvkg_core::{Rect, Renderer, FrameRenderer};
31
32/// Native renderer backend implementing the Renderer trait
33pub struct NativeRenderer {
34    window: Option<winit::window::Window>,
35    accesskit_tree: Option<accesskit::Tree>,
36}
37
38impl NativeRenderer {
39    #[doc(hidden)]
40    pub fn new() -> Self {
41        Self {
42            window: None,
43            accesskit_tree: None,
44        }
45    }
46}
47
48impl Renderer for NativeRenderer {
49    fn fill_rect(&mut self, _rect: Rect, _color: [f32; 4]) {}
50    fn fill_rounded_rect(&mut self, _rect: Rect, _radius: f32, _color: [f32; 4]) {}
51    fn fill_ellipse(&mut self, _rect: Rect, _color: [f32; 4]) {}
52    fn stroke_rect(&mut self, _rect: Rect, _color: [f32; 4], _stroke_width: f32) {}
53    fn stroke_rounded_rect(&mut self, _rect: Rect, _radius: f32, _color: [f32; 4], _stroke_width: f32) {}
54    fn stroke_ellipse(&mut self, _rect: Rect, _color: [f32; 4], _stroke_width: f32) {}
55    fn draw_line(&mut self, _x1: f32, _y1: f32, _x2: f32, _y2: f32, _color: [f32; 4], _stroke_width: f32) {}
56    fn draw_text(&mut self, _text: &str, _x: f32, _y: f32, _size: f32, _color: [f32; 4]) {}
57    fn draw_texture(&mut self, _texture_id: u32, _rect: Rect) {}
58    fn draw_image(&mut self, _image_name: &str, _rect: Rect) {}
59    fn push_clip_rect(&mut self, _rect: Rect) {}
60    fn pop_clip_rect(&mut self) {}
61    fn push_opacity(&mut self, _opacity: f32) {}
62    fn pop_opacity(&mut self) {}
63}
64
65impl FrameRenderer<()> for NativeRenderer {
66    fn begin_frame(&mut self) -> () { () }
67    fn end_frame(&mut self, _encoder: ()) {}
68}
69
70// TODO: Implement actual native rendering with winit and AccessKit integration
71// TODO: Platform-specific implementations for macOS, Windows, and Linux
cvkg_render_native/lib.rs

cvkg_render_native/
lib.rs
