ox::detail::Screen_buffers Class Reference

Holds the current and next screen buffers as Canvas objects. More...

#include <screen_buffers.hpp>

Public Member Functions
	Screen_buffers (ox::Area a)
	Construct with both Canvas objects having Area a.
void	resize (ox::Area a)
	Resizes both current and next Canvas objects to a.
auto	area () const -> Area
	Return the current size of the screen buffers.
void	merge ()
	Merges the next Canvas into the current Canvas. More...
auto	merge_and_diff () -> Canvas::Diff const &
	Merges the next Canvas into the current Canvas and returns the changes. More...
auto	generate_color_diff (Color c) -> Canvas::Diff const &
	Generates a Canvas::Diff, with every Glyph from current that has c. More...
auto	current_screen_as_diff () -> Canvas::Diff const &
	Returns the entire current screen as a Diff. Used on Window Resize.

Public Attributes
Canvas	current
Canvas	next

Detailed Description

Holds the current and next screen buffers as Canvas objects.

Provides merge and diff capabilities for the two buffers to determine what has changed and what should be written to the screen.

Member Function Documentation

generate_color_diff()

auto ox::detail::Screen_buffers::generate_color_diff

(

Color

c

)

-> Canvas::Diff const&

Generates a Canvas::Diff, with every Glyph from current that has c.

This isn't a true difference, it is meant to be used to generate a list of Glyphs that need to be re-written to the screen. Used by Dynamic_color_engine.

merge()

void ox::detail::Screen_buffers::merge

(

)

Merges the next Canvas into the current Canvas.

This will copy every Glyph from next that differs with current into current Canvas.

merge_and_diff()

auto ox::detail::Screen_buffers::merge_and_diff

(

)

-> Canvas::Diff const&

Merges the next Canvas into the current Canvas and returns the changes.

This will copy every Glyph from next that differs with current into current, and writes that change to the returned Canvas::Diff object.

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The documentation for this class was generated from the following files:

• /github/workspace/include/termox/terminal/detail/screen_buffers.hpp
• /github/workspace/src/terminal/detail/screen_buffers.cpp