44172da94f
So it becomes possible to reuse one callback for multiple parameters. This will be important for value change notifications.
24 lines
1 KiB
Rust
24 lines
1 KiB
Rust
// nih-plug: plugins, but rewritten in Rust
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// Copyright (C) 2022 Robbert van der Helm
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//! Convenience functions for formatting and parsing parameter values in common formats.
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use std::sync::Arc;
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/// Round an `f32` value to always have a specific number of decimal digits.
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pub fn f32_rounded(digits: usize) -> Option<Arc<dyn Fn(f32) -> String + Send + Sync>> {
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Some(Arc::new(move |x| format!("{:.digits$}", x)))
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}
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