Struct pushrod_render::render::widget::BaseWidget

pub struct BaseWidget { /* fields omitted */ }

This is an example top-level Widget object that is used to draw a background and a border of specified colors. COLOR_BASE determines the background fill color, and the COLOR_BORDER determines the color of the border. The width of the border is controlled by the get_config().border_width property.

Methods

impl BaseWidget

Base top-level implementation of the BaseWidget, which other classes can extend.

pub fn new(x: i32, y: i32, w: u32, h: u32) -> Self

Constructs a new base widget, given the points of origin and size.

Trait Implementations

impl Widget for BaseWidget

Implementation for drawing a BaseWidget, with the Widget trait objects applied.

fn draw(&mut self, _canvas: Canvas<Window>)

Draws the widget. If you wish to modify the canvas object, you must declare it as mut in your implementation (ie fn draw(&mut self, mut canvas: Canvas<Window>)).

fn get_config(&mut self) -> &mut WidgetConfig

This function is a macro-created getter function that returns the Widget's configuration object. This code is auto-generated using the default_widget_property_impl!() macro.

fn get_system_properties(&mut self) -> &mut HashMap<i32, String>

This function is a macro-created getter function that returns the Widget's system properties. This code is auto-generated using the default_widget_property_impl!() macro.

fn mouse_entered(&mut self)

When a mouse enters the bounds of the Widget, this function is triggered. This function implementation is optional.

fn mouse_exited(&mut self)

When a mouse exits the bounds of the Widget, this function is triggered. This function implementation is optional.

fn mouse_moved(&mut self, _points: Vec<i32>)

When a mouse moves within the bounds of the Widget, this function is triggered. It contains the X and Y coordinates relative to the bounds of the Widget. The points start at 0x0. This function implementation is optional.

fn mouse_scrolled(&mut self, _points: Vec<u8>)

When a mouse scroll is triggered within the bounds of the Widget, this function is triggered. Movement along the X axis indicate horizontal movement, where the Y axis indicates vertical movement. Positive movement means to the right or down, respectively. Negative movement means to the left or up, respectively. This function implementation is optional.

fn button_clicked(&mut self, _button: u8, _state: bool)

When a mouse button is clicked within (or outside of) the bounds of the Widget, this function is called. If a mouse button is clicked, and the mouse leaves the bounds of the Widget, the mouse release event will still be triggered for the last Widget which received the mouse down state. This prevents Widgets from becoming confused. This behavior is tracked by the main loop, not by the Widget code. Therefore, when a mouse button is released outside of the bounds of this Widget, you must adjust your state accordingly, if you pay attention to the button_clicked function. This function implementation is optional.