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Summary: - Added two new Rust example applications to the documentation: - `hello` example showcasing JSON serialization/deserialization, async runtime usage, and C interoperability in a NuttX environment - `slint` example demonstrating the integration of the Slint UI framework with NuttX's framebuffer and touchscreen devices for creating GUI applications in Rust - Each example includes detailed explanations of key features and how they are implemented using Rust's modern language capabilities Impact: - Enhances the documentation for Rust development within NuttX, providing clear and practical examples for developers - Facilitates easier adoption of Rust for new projects by demonstrating how to leverage its features while maintaining compatibility with existing NuttX infrastructure - No changes to the core NuttX system; the additions are entirely within the documentation and examples directory Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
42 lines
1.6 KiB
ReStructuredText
42 lines
1.6 KiB
ReStructuredText
==================================
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`slint` UI Framework Example
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==================================
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.. image:: slint.jpg
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:alt: Slint UI Example Screenshot
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:align: center
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This example demonstrates how to use the Slint UI framework in a NuttX environment with Rust. It shows how to create a simple GUI application that:
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- Displays a counter that increments every second
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- Uses NuttX's framebuffer device for rendering
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- Handles touchscreen input
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- Implements a software renderer for the Slint UI
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Key Features
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------------
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1. **Framebuffer Integration**
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- Opens and configures the NuttX framebuffer device (/dev/fb0)
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- Supports RGB565 pixel format
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- Implements a custom line buffer provider for efficient rendering
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2. **Touchscreen Input**
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- Opens and reads from the touchscreen device (/dev/input0)
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- Handles touch press, move, and release events
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- Maps touch coordinates to UI elements
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3. **Slint UI Framework**
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- Creates a simple window with a text element showing a counter
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- Uses Slint's software renderer backend
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- Implements a custom NuttX platform adapter
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- Handles window events and animations
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4. **Rust Integration**
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- Uses nuttx crate to interface with NuttX devices
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- Implements safe Rust abstractions for framebuffer and touchscreen
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- Demonstrates Rust's memory safety features with unsafe blocks
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The example shows how modern Rust UI frameworks can be used in embedded systems while maintaining compatibility with NuttX's device model.
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This serves as a foundation for building more complex Rust GUI applications in NuttX that need to handle graphical output and touch input.
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