struct Termisu::RenderState

• Termisu::RenderState
• Struct
• Value
• Object

Overview

Tracks the current terminal rendering state for optimization.

Used to avoid emitting redundant escape sequences by tracking what colors and attributes are currently set. Only emits escape sequences when the state actually changes.

Example:

state = Termisu::RenderState.new

# First cell - emits all sequences
state.apply_style(renderer, fg: Color.green, bg: Color.black, attr: Attribute::Bold)

# Second cell with same style - no sequences emitted
state.apply_style(renderer, fg: Color.green, bg: Color.black, attr: Attribute::Bold)

# Third cell with different color - only color change emitted
state.apply_style(renderer, fg: Color.red, bg: Color.black, attr: Attribute::Bold)

Defined in:

termisu/render_state.cr

Constructors

• .new

Instance Method Summary

• #apply_style(renderer : Renderer, fg : Color, bg : Color, attr : Attribute) : Bool

  Applies style to renderer, only emitting changes.

• #attr : Attribute

  Current text attributes

• #attr=(attr : Attribute)

  Current text attributes

• #bg : Color | Nil

  Current background color (nil = unknown/reset)

• #bg=(bg : Color | Nil)

  Current background color (nil = unknown/reset)

• #fg : Color | Nil

  Current foreground color (nil = unknown/reset)

• #fg=(fg : Color | Nil)

  Current foreground color (nil = unknown/reset)

• #reset

  Resets state to unknown (forces next render to emit all sequences).

Constructor Detail

Instance Method Detail