fix broken links (again)
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@@ -8,6 +8,8 @@ authors:
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Greetings to everyone, i haven't been working on OSUI for the past 6 months, i have been busy with other projects and haven't found myself motivated enough for OSUI, now i'm ready to go back to OSUI and make major changes.
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<!-- truncate -->
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## ⚡️ Changes
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- ⚙️ Rewrite the entire codebase
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@@ -20,7 +22,7 @@ OSUI Components and Extensions are a important design choice for OSUI, They stor
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### Extensions
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A OSUI extension extends the functionality of the current elements and program, a good example is in our [Hello World App With Velocity](/docs/#hello-world-app-with-velocity) example, where we use the built in `VelocityExtension` as well as the `Velocity(x, y)` component, by design it is required for a extension to have the components be optional for the elements, unless there is a very specific reason not to make it optional.
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A OSUI extension extends the functionality of the current elements and program, a good example is in our [Hello World App With Velocity](/docs/0.0.9/#hello-world-app-with-velocity) example, where we use the built in `VelocityExtension` as well as the `Velocity(x, y)` component, by design it is required for a extension to have the components be optional for the elements, unless there is a very specific reason not to make it optional.
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### Components
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@@ -8,6 +8,8 @@ authors:
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Why would i bother re-writing a TUI library? Well there was a LOT of things wrong with the old version of OSUI. It had bugs and lacks performance. v0.0.9 fixes all of those and hopefully we can achieve a better future for OSUI. With that being said. Let's get into what i plan on doing.
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<!-- truncate -->
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## ⚙️ OSUI Engine
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OSUI v0.0.9 Comes with a engine that works under the hood and can be manipulated to match your needs. Here are a few examples:
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- Game engine
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@@ -128,7 +128,7 @@ rsx! {
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Beyond `crossterm` events, you can define and dispatch your own custom event types using the `event!` macro. This is useful for communication between different parts of your application or custom extensions.
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See the [Advanced: Custom Events](/docs/advanced/custom_events.md) guide for details.
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See the [Advanced: Custom Events](/docs/advanced/custom_events) guide for details.
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## Summary
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@@ -105,10 +105,10 @@ Once registered, the `Screen` will call the appropriate lifecycle methods of you
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OSUI comes with several useful built-in extensions:
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* [`InputExtension`](/docs/reference/extensions_api.md#inputextension): Handles keyboard input and dispatches `crossterm::event::Event`s. **Crucial for interactive applications.**
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* [`TickExtension`](/docs/reference/extensions_api.md#tickextension): Dispatches `TickEvent`s at a specified rate, useful for animations or periodic updates.
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* [`VelocityExtension`](/docs/reference/extensions_api.md#velocityextension): Automatically updates the `Transform` of widgets that have a `Velocity` component, causing them to move.
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* [`IdExtension`](/docs/reference/extensions_api.md#idextension): Provides a way to retrieve specific widgets by a unique `Id` component. (Note: The current `IdExtension` implementation only *stores* a screen reference but doesn't actively do anything unless you manually call its `get_element` method.)
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* [`InputExtension`](/docs/reference/extensions_api#inputextension): Handles keyboard input and dispatches `crossterm::event::Event`s. **Crucial for interactive applications.**
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* [`TickExtension`](/docs/reference/extensions_api#tickextension): Dispatches `TickEvent`s at a specified rate, useful for animations or periodic updates.
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* [`VelocityExtension`](/docs/reference/extensions_api#velocityextension): Automatically updates the `Transform` of widgets that have a `Velocity` component, causing them to move.
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* [`IdExtension`](/docs/reference/extensions_api#idextension): Provides a way to retrieve specific widgets by a unique `Id` component. (Note: The current `IdExtension` implementation only *stores* a screen reference but doesn't actively do anything unless you manually call its `get_element` method.)
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You use these built-in extensions by simply calling `screen.extension(...)` with an instance of them, just like `MyLoggerExtension`.
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@@ -22,7 +22,7 @@ The central component for defining layout rules. It encapsulates all the propert
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* `px: u16`, `py: u16`: **Padding** - internal space between the element's border and its content/children. This increases the overall size of the element.
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* `mx: i32`, `my: i32`: **Margin** - an offset applied *after* the element's position is calculated. This creates space *around* the element relative to its parent's edges. Can be negative for overlap.
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(See [Reference: Style API - Transform](/docs/reference/style_api.md#transform-component) for full details)
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(See [Reference: Style API - Transform](/docs/reference/style_api#transform-component) for full details)
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### `Position` Enum
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@@ -32,7 +32,7 @@ Determines the `x` or `y` coordinate.
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* `Center`: Centers the element within the parent's available space on that axis.
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* `End`: Aligns the element to the right or bottom edge of the parent.
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(See [Reference: Style API - Position](/docs/reference/style_api.md#position-enum) for full details)
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(See [Reference: Style API - Position](/docs/reference/style_api#position-enum) for full details)
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### `Dimension` Enum
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@@ -42,13 +42,13 @@ Determines the `width` or `height`.
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* `Content`: Sizes itself to fit its content (text) or children. This is dynamic.
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* `Const(u16)`: Fixed size in terminal cells.
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(See [Reference: Style API - Dimension](/docs/reference/style_api.md#dimension-enum) for full details)
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(See [Reference: Style API - Dimension](/docs/reference/style_api#dimension-enum) for full details)
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### `RawTransform` Struct
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This is the internal, resolved representation of a `Transform`. After all calculations, a `Transform`'s declarative rules are converted into a `RawTransform` with concrete `u16` values for `x`, `y`, `width`, `height`, `px`, `py`. This `RawTransform` is then used by the `RenderScope` for actual drawing.
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(See [Reference: Style API - RawTransform](/docs/reference/style_api.md#rawtransform-struct) for full details)
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(See [Reference: Style API - RawTransform](/docs/reference/style_api#rawtransform-struct) for full details)
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## Layout Calculation Flow (Simplified)
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@@ -31,7 +31,7 @@ OSUI automates this process. When a `State<T>` value is modified, any `DynWidget
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* `**my_state.get() = new_value` (or `my_state.get().deref_mut().field = new_value`): Mutates the value directly through a `MutexGuard`. The `DerefMut` implementation automatically marks the state as changed by setting `inner.changed = inner.dependencies`.
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* **Dependency Tracking**: Implements the `DependencyHandler` trait, allowing `DynWidget`s to register themselves.
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(See [Reference: State API](/docs/reference/state_api.md) for more details)
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(See [Reference: State API](/docs/reference/state_api) for more details)
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### 2. `DependencyHandler` Trait
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@@ -40,7 +40,7 @@ A trait that `State<T>` (and potentially other future reactive types) implements
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* `add()`: Called when a `DynWidget` first registers itself as a listener to this dependency. It increments an internal counter of listeners.
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* `check()`: Called by `DynWidget` during its `auto_refresh` cycle. It decrements the `changed` counter and returns `true` if there are still pending changes to be processed by a listener. This ensures each listener processes a change only once per update cycle.
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(See [Reference: State API - DependencyHandler Trait](/docs/reference/state_api.md#dependencyhandler-trait) for more details)
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(See [Reference: State API - DependencyHandler Trait](/docs/reference/state_api#dependencyhandler-trait) for more details)
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### 3. `DynWidget`: The Reactive Widget Wrapper
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@@ -54,7 +54,7 @@ A trait that `State<T>` (and potentially other future reactive types) implements
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* `refresh()`: Forces the widget to rebuild immediately by re-executing its creation closure.
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* `auto_refresh()`: The core of reactivity. It iterates through all registered `DependencyHandler`s. If `handler.check()` returns `true` for any of them, it calls `refresh()` to rebuild the widget.
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(See [Reference: Widget API - DynWidget Struct](/docs/reference/widget_api.md#dynwidget-struct) for more details)
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(See [Reference: Widget API - DynWidget Struct](/docs/reference/widget_api#dynwidget-struct) for more details)
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## How Reactive Updates Work in Practice
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@@ -29,7 +29,7 @@ The orchestrator. It holds the list of top-level `Widget`s, manages extensions,
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* Iterates through top-level widgets, initiating their rendering.
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* Calls `Extension::on_close` and restores terminal state on shutdown.
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(See [Reference: Screen API](/docs/reference/screen_api.md) for more details)
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(See [Reference: Screen API](/docs/reference/screen_api) for more details)
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### 2. `Widget` (`Arc<Widget>`)
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@@ -39,7 +39,7 @@ The container for an `Element` and its `Component`s. It's the unit passed around
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* `DynWidget`: Its `Element` can be re-instantiated (rebuilt) if its dependencies change. This rebuild happens *before* its `render` method is called in a subsequent frame.
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* Provides access to its `Element` (`get_elem()`) and `Component`s (`get()`, `set_component()`).
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(See [Reference: Widget API](/docs/reference/widget_api.md) for more details)
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(See [Reference: Widget API](/docs/reference/widget_api) for more details)
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### 3. `Element` (`Box<dyn Element>`)
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@@ -49,7 +49,7 @@ The actual drawable logic. Each `Element` implementation defines how it appears.
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* `after_render(&mut self, scope: &mut RenderScope)`: For containers, this is where children are processed and recursively rendered. It's also where the element might determine its final `Dimension::Content` size based on children.
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* `draw_child(&mut self, element: &Arc<Widget>)`: Called by `rsx!` to establish parent-child relationships. Children processed by a parent are marked `NoRenderRoot` to prevent the `Screen` from rendering them independently.
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(See [Reference: Widget API - Element Trait](/reference/widget_api#element-trait) and [Guides: Custom Elements](/docs/guides/custom_elements) for more details)
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(See [Reference: Widget API - Element Trait](/docs/reference/widget_api#element-trait) and [Guides: Custom Elements](/docs/guides/custom_elements) for more details)
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### 4. `RenderScope`
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@@ -67,7 +67,7 @@ The drawing context for a single element. It's a mutable structure that holds:
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* `clear()`: Resets the scope for the next element.
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* `set_parent_size()`: Crucial for container elements to establish the bounding box for their children.
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(See [Reference: RenderScope API](/docs/reference/render_scope_api.md) for more details)
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(See [Reference: RenderScope API](/docs/reference/render_scope_api) for more details)
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### 5. `Transform` and `Style` Components
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@@ -76,7 +76,7 @@ These components, attached to a `Widget`, provide the declarative rules for layo
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* `Transform`: Contains `Position` and `Dimension` rules, plus `margin` and `padding`. These are resolved into `RawTransform` by `RenderScope`.
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* `Style`: Contains `Background` and `foreground` color. Applied to `RenderScope`.
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(See [Reference: Style API](/docs/reference/style_api.md) for more details)
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(See [Reference: Style API](/docs/reference/style_api) for more details)
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### 6. `Extension`s
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@@ -84,7 +84,7 @@ Extensions are hooks into the pipeline.
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* `Extension::render_widget(scope, widget)`: Called for each top-level widget *before* its `Element::render`. Allows extensions to inspect or modify the `RenderScope` or widget before rendering.
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(See [Reference: Extensions API](/docs/reference/extensions_api.md) for more details)
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(See [Reference: Extensions API](/docs/reference/extensions_api) for more details)
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## Flow Diagram (Conceptual)
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@@ -141,7 +141,7 @@ OSUI uses a few internal components to control rendering behavior:
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* `NoRender`: If a widget has this component, the `Screen`'s main rendering loop will skip rendering it directly. This is typically used for widgets that are managed and rendered by their parent `Element::after_render` method.
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* `NoRenderRoot`: Similar to `NoRender`, but specifically signals that the widget is a child being managed by a parent element, preventing the `Screen` from considering it a top-level root widget for direct rendering.
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* `Handler<E>`: (Described in [Handling Input](/docs/guides/handling_input.md) and [Extensions API](/docs/reference/extensions_api.md)) Enables widgets to subscribe to specific event types.
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* `Handler<E>`: (Described in [Handling Input](/docs/guides/handling_input) and [Extensions API](/docs/reference/extensions_api)) Enables widgets to subscribe to specific event types.
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## Usage Patterns
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