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sokol-luajit/engine/nuklear/utils/themes.lua

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Removed editor. Dim will become the editor.
2026-07-30 21:27:21 +08:00
---@meta
-- A util for makin themes. Create a theme, and then add it to the theme pool
local nuklear = require("engine.nuklear.style")
local indexes = {
NK_COLOR_TEXT = 0,
NK_COLOR_WINDOW = 1,
NK_COLOR_HEADER = 2,
NK_COLOR_BORDER = 3,
NK_COLOR_BUTTON = 4,
NK_COLOR_BUTTON_HOVER = 5,
NK_COLOR_BUTTON_ACTIVE = 6,
NK_COLOR_TOGGLE = 7,
NK_COLOR_TOGGLE_HOVER = 8,
NK_COLOR_TOGGLE_CURSOR = 9,
NK_COLOR_SELECT = 10,
NK_COLOR_SELECT_ACTIVE = 11,
NK_COLOR_SLIDER = 12,
NK_COLOR_SLIDER_CURSOR = 13,
NK_COLOR_SLIDER_CURSOR_HOVER = 14,
NK_COLOR_SLIDER_CURSOR_ACTIVE = 15,
NK_COLOR_PROPERTY = 16,
NK_COLOR_EDIT = 17,
NK_COLOR_EDIT_CURSOR = 18,
NK_COLOR_COMBO = 19,
NK_COLOR_CHART = 20,
NK_COLOR_CHART_COLOR = 21,
NK_COLOR_CHART_COLOR_HIGHLIGHT = 22,
NK_COLOR_SCROLLBAR = 23,
NK_COLOR_SCROLLBAR_CURSOR = 24,
NK_COLOR_SCROLLBAR_CURSOR_HOVER = 25,
NK_COLOR_SCROLLBAR_CURSOR_ACTIVE = 26,
NK_COLOR_TAB_HEADER = 27,
}
local theme_index_keys = {}
for k,v in pairs(indexes) do
theme_index_keys[v+1] = tostring(k)
end
local colors = {
cyan = 0xff119da4,
cerulean = 0xff0c7489,
midnight_green = 0xff13505b,
black = 0xff040404,
timberwolf = 0xffd7d9ce,
oxford_blue = 0xff0b132b,
space_cadet = 0xff1c2541,
yinmin_blue = 0xff3a506b,
vedigris = 0xff5bc0be,
white = 0xffffffff,
gunmetal = 0xff253237,
paynes_dark = 0xff2c3b43,
paynes_gray = 0xff5c6b73,
cadet_gray = 0xff6d94a0,
light_blue = 0xff627f93,
light_cyan = 0xffc0dbdc,
techalpha = 0x00177772,
techbg1 = 0xff177772,
techbg2 = 0xff29f9e5,
techfg1 = 0x800c3d46,
tech_black = 0xff000000,
}
-----------------------------------------------------------------------------------
local themes = {
indexes = indexes,
editor_theme = {},
colors = colors,
theme_names = { "default", "custom", "tech", "gray_blue" },
default = function()
nuklear.set_style(4, 255, 0xffffffff)
nuklear.set_style_table()
end,
custom = function()
nuklear.set_style(2, 255, 0xffffffff)
nuklear.set_style_table()
end,
tech = function()
colors.bg1 = 0xff177772
colors.bg2 = 0xff29f9e5
colors.fg1 = 0x800c3d46
nuklear.set_style(3, 0, colors.white) -- Set which style index to use (0->5)
-- nuklear.set_style_prop(indexes.NK_COLOR_TEXT, colors.techfg1) -- text color
-- nuklear.set_style_prop(indexes.NK_COLOR_WINDOW, colors.techalpha) -- bg color
nuklear.set_style_prop(indexes.NK_COLOR_HEADER, colors.techfg1) -- header color
-- nuklear.set_style_prop(indexes.NK_COLOR_BORDER, colors.white) -- border color
nuklear.set_style_prop(indexes.NK_COLOR_BUTTON, colors.gunmetal) -- button color
nuklear.set_style_prop(indexes.NK_COLOR_BUTTON_HOVER, colors.cadet_gray) -- button hover color
nuklear.set_style_prop(indexes.NK_COLOR_BUTTON_ACTIVE, colors.paynes_gray) -- button active color
nuklear.set_style_prop(indexes.NK_COLOR_TOGGLE, colors.paynes_gray) -- toggle color
-- nuklear.set_style_prop(indexes.NK_COLOR_TOGGLE_HOVER, colors.cadet_gray) -- toggle hover color
-- nuklear.set_style_prop(indexes.NK_COLOR_TOGGLE_CURSOR, colors.light_blue) -- toggle active color
nuklear.set_style_prop(indexes.NK_COLOR_SELECT, colors.techfg1) -- select color
nuklear.set_style_prop(indexes.NK_COLOR_SELECT_ACTIVE, colors.paynes_dark) -- select active color
nuklear.set_style_prop(indexes.NK_COLOR_SLIDER, colors.paynes_gray) -- slider color
-- nuklear.set_style_prop(indexes.NK_COLOR_SLIDER_CURSOR, colors.cadet_gray) -- slider cursor
-- nuklear.set_style_prop(indexes.NK_COLOR_SLIDER_CURSOR_HOVER, colors.paynes_gray) -- slider hover
-- nuklear.set_style_prop(indexes.NK_COLOR_SLIDER_CURSOR_ACTIVE, colors.paynes_gray) -- slider active
nuklear.set_style_prop(indexes.NK_COLOR_PROPERTY, colors.paynes_gray) -- property color
nuklear.set_style_prop(indexes.NK_COLOR_EDIT, colors.techfg1) -- edit color
-- nuklear.set_style_prop(indexes.NK_COLOR_EDIT_CURSOR, colors.light_blue) -- edit cursor color
nuklear.set_style_prop(indexes.NK_COLOR_COMBO, colors.techfg1) -- combo color
nuklear.set_style_prop(indexes.NK_COLOR_CHART, colors.tech_black) -- chart bg color
nuklear.set_style_prop(indexes.NK_COLOR_CHART_COLOR, colors.tech_black) -- chart color
-- nuklear.set_style_prop(indexes.NK_COLOR_CHART_COLOR_HIGHLIGHT, colors.tech_black) -- chart color highlight
nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR, colors.tech_black) -- scrollbar color
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR_CURSOR, colors.tech_black) -- scrollbar cursor color
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR_CURSOR_HOVER, colors.tech_black) -- scrollbar cursor hover color
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR_CURSOR_ACTIVE, colors.tech_black) -- scrollbar cursor active color
nuklear.set_style_prop(indexes.NK_COLOR_TAB_HEADER, colors.techfg1) -- tab header color
nuklear.set_style_table()
end,
gray_blue = function()
nuklear.set_style(3, 0, colors.white) -- text color
nuklear.set_style_prop(indexes.NK_COLOR_TEXT, colors.white)
nuklear.set_style_prop(indexes.NK_COLOR_WINDOW, 0xe0253237) -- bg color
nuklear.set_style_prop(indexes.NK_COLOR_HEADER, colors.paynes_gray) -- header color
nuklear.set_style_prop(indexes.NK_COLOR_BORDER, colors.light_blue) -- border color
nuklear.set_style_prop(indexes.NK_COLOR_BUTTON, colors.gunmetal) -- button color
nuklear.set_style_prop(indexes.NK_COLOR_BUTTON_HOVER, colors.cadet_gray) -- button hover color
nuklear.set_style_prop(indexes.NK_COLOR_BUTTON_ACTIVE, colors.light_blue) -- button active color
nuklear.set_style_prop(indexes.NK_COLOR_TOGGLE, colors.paynes_gray) -- toggle color
nuklear.set_style_prop(indexes.NK_COLOR_TOGGLE_HOVER, colors.cadet_gray) -- toggle hover color
nuklear.set_style_prop(indexes.NK_COLOR_TOGGLE_CURSOR, colors.light_blue) -- toggle active color
nuklear.set_style_prop(indexes.NK_COLOR_SELECT, colors.paynes_dark) -- select color
nuklear.set_style_prop(indexes.NK_COLOR_SELECT_ACTIVE, colors.light_blue) -- select active color
nuklear.set_style_prop(indexes.NK_COLOR_SLIDER, colors.paynes_gray) -- slider color
nuklear.set_style_prop(indexes.NK_COLOR_SLIDER_CURSOR, colors.cadet_gray) -- slider cursor
nuklear.set_style_prop(indexes.NK_COLOR_SLIDER_CURSOR_HOVER, colors.paynes_gray) -- slider hover
nuklear.set_style_prop(indexes.NK_COLOR_SLIDER_CURSOR_ACTIVE, colors.paynes_gray) -- slider active
nuklear.set_style_prop(indexes.NK_COLOR_PROPERTY, colors.paynes_gray) -- property color
nuklear.set_style_prop(indexes.NK_COLOR_EDIT, colors.paynes_gray) -- edit color
nuklear.set_style_prop(indexes.NK_COLOR_EDIT_CURSOR, colors.light_blue) -- edit cursor color
nuklear.set_style_prop(indexes.NK_COLOR_COMBO, colors.paynes_gray) -- combo color
-- nuklear.set_style_prop(indexes.NK_COLOR_COMBO, colors.paynes_gray) -- combo color
-- nuklear.set_style_prop(indexes.NK_COLOR_CHART, colors.tech_black) -- chart bg color
-- nuklear.set_style_prop(indexes.NK_COLOR_CHART_COLOR, colors.tech_black) -- chart color
-- nuklear.set_style_prop(indexes.NK_COLOR_CHART_COLOR_HIGHLIGHT, colors.tech_black) -- chart color highlight
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR, colors.tech_black) -- scrollbar color
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR_CURSOR, colors.tech_black) -- scrollbar cursor color
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBAR_CURSOR_HOVER, colors.tech_black) -- scrollbar cursor hover color
-- nuklear.set_style_prop(indexes.NK_COLOR_SCROLLBARCURSOR_ACTIVE, colors.tech_black) -- scrollbar cursor active color
nuklear.set_style_prop(indexes.NK_COLOR_TAB_HEADER, colors.paynes_gray) -- tab header color
nuklear.set_style_table()
end,
}
-----------------------------------------------------------------------------------
-- Get current state of nk theme
-- fetches the properties in a function you can call to set and then save!!
local function get_theme(theme_name)
local theme_str = ""
theme_str = theme_str.."-- -----------------------------------------------------------------------\n"
theme_str = theme_str.."-- Auto generated theme file. Do not edit!\n"
theme_str = theme_str.."-- -----------------------------------------------------------------------\n"
theme_str = theme_str.."nuklear.set_style(2, 255, 0xffffffff) -- set custom style\n"
for k,v in ipairs(theme_index_keys) do
theme_str = theme_str.."nuklear.set_style_prop(indexes."..tostring(v)..", "..string.format("0x%0x", nuklear.get_style_prop(indexes[v]))..")\n"
end
theme_str = theme_str.."nuklear.set_style_table()\n"
local func = assert(load(theme_str, theme_str, "t" , {indexes=indexes, nuklear=nuklear}))
themes[theme_name] = func
return func
end
-----------------------------------------------------------------------------------
-- Save a theme in the above format as lua.
-- This allows themes to eb used without the editor and this file.
local function save_theme( filename )
local fh = io.open(filename, "w")
if(fh == nil) then
pprint("[Error Save Theme] Cannot save to file: "..filename)
return nil
end
-- Always save out a theme into the custom style. Dont overwrite builtin styles
fh:write("-- -----------------------------------------------------------------------\n")
fh:write("-- Auto generated theme file. Do not edit!\n")
fh:write("-- -----------------------------------------------------------------------\n")
fh:write("nuklear.set_style(2, 255, 0xffffffff) -- set custom style\n")
for k,v in ipairs(theme_index_keys) do
fh:write("nuklear.set_style_prop(indexes."..v..", "..string.format("0x%0x", nuklear.get_style_prop(indexes[v]))..")\n" )
end
fh:write("nuklear.set_style_table()\n")
fh:close()
end
-----------------------------------------------------------------------------------
-- Loading a theme is really simple.
-- Loadstring and run it. We cannot use require, because it only loads once.
local function load_theme( filename )
local fh = io.open(filename, "r")
if(fh == nil) then
pprint("[Error Save Theme] Cannot save to file: "..filename)
return nil
end
local themestr = fh:read("*a")
fh:close()
local func = assert(load(themestr, themestr, "t" , {indexes=indexes, nuklear=nuklear}))
func()
end
-----------------------------------------------------------------------------------
-- Theme editor panel. Load, Save and Modify your theme.
-- Themes are in the same format as above, and can be used in place of this file.
themes.theme_panel = function ( self, font, left, top, width, height, readonly )
local y = top
local x = left
local flags = bit.bor(self.flags.NK_WINDOW_TITLE, self.flags.NK_WINDOW_BORDER)
flags = bit.bor(flags, self.flags.NK_WINDOW_MOVABLE)
flags = bit.bor(flags, self.flags.NK_WINDOW_MINIMIZABLE)
flags = bit.bor(flags, self.flags.NK_WINDOW_NO_SCROLLBAR)
local bg_current = nuklear.get_style_prop( indexes.NK_COLOR_WINDOW )
local txt_current = nuklear.get_style_prop( indexes.NK_COLOR_TEXT )
nuklear.set_style_prop(indexes.NK_COLOR_WINDOW, 0xff000000)
nuklear.set_style_prop(indexes.NK_COLOR_TEXT, 0xffffffff)
nuklear.set_style_table()
if( nuklear.begin_window( "Theme Editor", x, y, width, height, flags) == true) then
-- Using index 2 for this panel. Which means editing it wont change anything.
local newx, newy, wide, high = nuklear.get_bounds_window()
-- Ensure alpga is enabled on bg for this panel
nuklear.set_font( font.fontid )
--nuklear.fill_rect(left, top, width + 30, height + 30, 0, 0x000001ff)
nuklear.layout_row_dyn(30, 1)
local select_theme = tonumber(nuklear.combo( themes.theme_names, self.theme_select or 2, 25, 280, 200 ))
nuklear.layout_row_dyn(30, 1)
local select_index = nuklear.combo( theme_index_keys, self.theme_index_select or 0, 25, 280, 200 )
if(select_index ~= self.theme_index_select) then
local indexcol = nuklear.get_style_prop(select_index)
self.theme_index_color = indexcol
self.theme_index_select = select_index
end
local index_color = nuklear.picker_color_complex( self.theme_index_color or 0xffffffff )
nuklear.layout_row_dyn(30, 1)
local set_style = nuklear.button_label_active( "Apply Style" )
nuklear.layout_row_dyn(30, 1)
self.style_path = nuklear.edit_string(10, self.style_path or "./config/custom_theme.lua", 128, 1)
nuklear.layout_row_dyn(30, 2)
local load_style = nuklear.button_label_active( "Load Style" )
local save_style = nuklear.button_label_active( "Save Style" )
if(save_style == 1) then
save_theme( self.style_path )
end
if(load_style == 1) then
load_theme( self.style_path )
end
if(select_theme ~= self.theme_select) then
self.theme_select = select_theme
themes[themes.theme_names[self.theme_select+1]]()
end
nuklear.set_style_prop(indexes.NK_COLOR_WINDOW, bg_current)
nuklear.set_style_prop(indexes.NK_COLOR_TEXT, txt_current)
nuklear.set_style_table()
if (index_color ~= self.theme_index_color) then
self.theme_index_color = index_color
nuklear.set_style_prop(self.theme_index_select, self.theme_index_color)
end
if(set_style == 1) then
nuklear.set_style_table()
end
nuklear.end_window()
end
end
-----------------------------------------------------------------------------------
themes.load = load_theme
themes.save = save_theme
themes.get_theme = get_theme
-----------------------------------------------------------------------------------
return themes
-----------------------------------------------------------------------------------
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