40 lines
856 B
40 lines
856 B
-- SPDX-FileCopyrightText: 2023 jacqueline <me@jacqueline.id.au>
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--
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-- SPDX-License-Identifier: GPL-3.0-only
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local lvgl = require("lvgl")
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local fonts = {}
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local fonts_priv = {
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has_invoked_cb = false,
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cb = nil,
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}
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function fonts_priv.has_loaded_all()
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return fonts.fusion_12 and fonts.fusion_10
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end
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function fonts_priv.invoke_cb()
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if fonts_priv.has_invoked_cb or not fonts_priv.cb then return end
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if not fonts_priv.has_loaded_all() then return end
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fonts_priv.has_invoked_cb = true
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fonts_priv.cb()
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end
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lvgl.Font("//lua/fonts/fusion12", function(font)
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fonts.fusion_12 = font
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fonts_priv.invoke_cb()
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end)
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lvgl.Font("//lua/fonts/fusion10", function(font)
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fonts.fusion_10 = font
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fonts_priv.invoke_cb()
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end)
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function fonts.on_loaded(cb)
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fonts_priv.cb = cb
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fonts_priv.has_invoked_cb = false
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fonts_priv.invoke_cb()
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end
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return fonts
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