Struct IconGrid 

pub struct IconGrid {
    pub icons: Vec<DesktopIcon>,
    pub grid_spacing_x: u32,
    pub grid_spacing_y: u32,
    pub cell_size: u32,
    /* private fields */
}

Grid-based layout manager for desktop icons.

Fields

icons: Vec<DesktopIcon>

All desktop icons.

grid_spacing_x: u32

Horizontal spacing between grid cells (pixels).

grid_spacing_y: u32

Vertical spacing between grid cells (pixels).

cell_size: u32

Icon cell size (width = height = ICON_SIZE + padding).

Implementations

impl IconGrid

pub fn new(desktop_width: u32, desktop_height: u32) -> Self

Create a new icon grid for a desktop of the given dimensions.

pub fn add_icon(&mut self, icon: DesktopIcon)

Add an icon to the grid.

pub fn remove_icon(&mut self, index: usize) -> Option<DesktopIcon>

Remove an icon by index.

pub fn arrange(&mut self)

Auto-arrange all icons in a grid layout (top-left to bottom-right).

pub fn snap_to_grid(&self, x: i32, y: i32) -> (i32, i32)

Snap a position to the nearest grid cell.

pub fn render_icon( icon: &DesktopIcon, buf: &mut [u32], buf_width: u32, buf_height: u32, )

Render a single icon into a pixel buffer.

buf is buf_width x buf_height, ARGB8888 row-major.

pub fn handle_click(&mut self, px: i32, py: i32) -> Option<usize>

Handle a click at (px, py).

Returns the index of the clicked icon (if any). Deselects all others.

pub fn handle_double_click(&mut self, px: i32, py: i32) -> Option<String>

Handle a double-click at (px, py).

Returns the exec command of the double-clicked icon, if any.

pub fn handle_drag(&mut self, px: i32, py: i32)

Handle drag: move the selected icon to (px, py) with grid snapping.

pub fn deselect_all(&mut self)

Deselect all icons.

pub fn icon_count(&self) -> usize

Number of icons.

Trait Implementations

impl Debug for IconGrid

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.