do -- fonts loader
local _fonts_loaded = {}
ImGuiLoadFont = function(font_load_desc, font_size)
local font_name = (font_load_desc.name or table.find(ImGuiFonts, font_load_desc) or "Unknown Font")
local font_id = font_name .. "@" .. tostring(font_size)
if not _fonts_loaded[font_id] then
debug("new font in _fonts_loaded with id ", font_id)
debugf("now it's seted up to default font (%s)", tostring(ImGui.GetIO().Fonts.Fonts.Data[0]))
debug("will be loaded at the next frame")
_fonts_loaded[font_id] = {
loading = true,
try_load_again_at = 0,
name = font_name,
data_type = font_load_desc.data_type,
data = font_load_desc.data,
size = font_size,
glyph_ranges = font_load_desc.glyph_ranges,
font = ImGui.GetIO().Fonts.Fonts.Data[0] -- default font
}
end
return _fonts_loaded[font_id].font
end
ImGui.OnFrame(
function() return true end,
function()
for font_id, font_info in pairs(_fonts_loaded) do
if font_info.loading then
if timeGetTime() < font_info.try_load_again_at then goto continue end
debugf("loading font '%s' (%s) with size %i", font_info.name, font_id, font_info.size)
local FontAtlas = ImGui.GetIO().Fonts
if font_info.data_type == FONT_DATATYPE_BASE85 then
-- todo
elseif font_info.data_type == FONT_DATATYPE_FILE then
debugf("loading from file '%s'", font_info.data)
if not doesFileExist(font_info.data) then
debugf("file of font '%s' doesnt exist, try again after %i milliseconds", font_info.name, CFG_WAIT_FOR_FONT_FILE)
font_info.try_load_again_at = timeGetTime() + CFG_WAIT_FOR_FONT_FILE
goto continue
else
ImGuiPushDefaultFontToFontAtlas(font_info.size)
local glyph_ranges = ffi.new("const char*", font_info.glyph_ranges)
local font_config = ImGui.ImFontConfig()
font_config.MergeMode = true
font_info.font = FontAtlas:AddFontFromFileTTF(font_info.data, font_info.size, font_config, ffi.cast("const wchar_t*", glyph_ranges))
FontAtlas:Build()
ImGui.InvalidateFontsTexture()
end
end
font_info.loading = false
debug("font loaded: ", font_info.font)
::continue:: end
end
end,
function(pl) pl.HideCursor = true end
)
end
