182 lines
4.2 KiB
Lua
182 lines
4.2 KiB
Lua
---@meta
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---
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---Core functionality to render or draw elements into the screen.
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---@class renderer
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renderer = {}
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---
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---Represents a color used by the rendering functions.
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---@class renderer.color
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---@field public r number Red
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---@field public g number Green
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---@field public b number Blue
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---@field public a number Alpha
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renderer.color = {}
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---
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---Represent options that affect a font's rendering.
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---@class renderer.fontoptions
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---@field public antialiasing "'grayscale'" | "'subpixel'"
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---@field public hinting "'slight'" | "'none'" | '"full"'
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renderer.fontoptions = {}
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---
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---@class renderer.font
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renderer.font = {}
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---
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---Create a new font object.
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---
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---@param path string
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---@param size number
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---@param options renderer.fontoptions
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---
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---@return renderer.font
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function renderer.font.load(path, size, options) end
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---
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---Clones a font object into a new one.
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---
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---@param size? number Optional new size for cloned font.
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---
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---@return renderer.font
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function renderer.font:copy(size) end
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---
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---Set the amount of characters that represent a tab.
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---
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---@param chars integer Also known as tab width.
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function renderer.font:set_tab_size(chars) end
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---
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---Get the width in pixels of the given text when
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---rendered with this font.
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---
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---@param text string
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---
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---@return number
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function renderer.font:get_width(text) end
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---
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---Get the width in subpixels of the given text when
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---rendered with this font.
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---
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---@param text string
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---
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---@return number
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function renderer.font:get_width_subpixel(text) end
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---
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---Get the height in pixels that occupies a single character
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---when rendered with this font.
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---
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---@return number
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function renderer.font:get_height() end
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---
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---Gets the font subpixel scale.
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---
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---@return number
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function renderer.font:subpixel_scale() end
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---
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---Get the current size of the font.
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---
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---@return number
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function renderer.font:get_size() end
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---
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---Set a new size for the font.
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---
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---@param size number
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function renderer.font:set_size(size) end
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---
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---Assistive functionality to replace characters in a
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---rendered text with other characters.
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---@class renderer.replacements
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renderer.replacements = {}
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---
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---Create a new character replacements object.
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---
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---@return renderer.replacements
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function renderer.replacements.new() end
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---
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---Add to internal map a character to character replacement.
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---
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---@param original_char string Should be a single character like '\t'
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---@param replacement_char string Should be a single character like '»'
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function renderer.replacements:add(original_char, replacement_char) end
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---
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---Toggles drawing debugging rectangles on the currently rendered sections
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---of the window to help troubleshoot the renderer.
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---
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---@param enable boolean
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function renderer.show_debug(enable) end
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---
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---Get the size of the screen area been rendered.
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---
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---@return number width
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---@return number height
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function renderer.get_size() end
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---
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---Tell the rendering system that we want to build a new frame to render.
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function renderer.begin_frame() end
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---
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---Tell the rendering system that we finished building the frame.
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function renderer.end_frame() end
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---
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---Set the region of the screen where draw operations will take effect.
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---
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---@param x number
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---@param y number
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---@param width number
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---@param height number
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function renderer.set_clip_rect(x, y, width, height) end
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---
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---Draw a rectangle.
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---
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---@param x number
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---@param y number
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---@param width number
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---@param height number
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---@param color renderer.color
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function renderer.draw_rect(x, y, width, height, color) end
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---
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---Draw text.
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---
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---@param font renderer.font
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---@param text string
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---@param x number
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---@param y number
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---@param color renderer.color
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---@param replace renderer.replacements
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---@param color_replace renderer.color
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---
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---@return number x_subpixel
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function renderer.draw_text(font, text, x, y, color, replace, color_replace) end
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---
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---Draw text at subpixel level.
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---
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---@param font renderer.font
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---@param text string
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---@param x number
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---@param y number
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---@param color renderer.color
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---@param replace renderer.replacements
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---@param color_replace renderer.color
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---
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---@return number x_subpixel
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function renderer.draw_text_subpixel(font, text, x, y, color, replace, color_replace) end
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