class Opal::UI::Viewport

• Opal::UI::Viewport
• Opal::UI::Element
• Reference
• Object

Overview

Scrollable viewport element displaying a subset of content with an optional scroll indicator.

Defined in:

opal/ui/components/viewport.cr

Constructors

• .new(content : String = "", offset_y : Int32 = 0, fg : Color | Symbol | String = Color.none, show_scrollbar : Bool = true)

Instance Method Summary

• #content : String
• #content=(content : String)
• #fg : Color
• #fg=(fg : Color)
• #offset_y : Int32
• #offset_y=(offset_y : Int32)
• #preferred_size(available_w : Int32, available_h : Int32) : Tuple(Int32, Int32)
• #render(buffer : Buffer, x : Int32, y : Int32, width : Int32, height : Int32) : Nil
• #scroll_down(lines : Int32 = 1) : Nil
• #scroll_up(lines : Int32 = 1) : Nil
• #show_scrollbar=(show_scrollbar : Bool)
• #show_scrollbar? : Bool

Constructor Detail

Instance Method Detail