use std::io; #[cfg(target_os = "macos")] use cocoa_foundation::base::id; #[cfg(target_os = "macos")] use cocoa_foundation::foundation::NSRunLoop; #[cfg(target_os = "macos")] use objc::{msg_send, sel, sel_impl}; use tts::*; fn main() -> Result<(), Error> { env_logger::init(); let tts = Tts::default()?; let mut tts_clone = tts.clone(); drop(tts); if Tts::screen_reader_available() { println!("A screen reader is available on this platform."); } else { println!("No screen reader is available on this platform."); } let Features { utterance_callbacks, .. } = tts_clone.supported_features(); if utterance_callbacks { tts_clone.on_utterance_begin(Some(Box::new(|utterance| { println!("Started speaking {:?}", utterance) })))?; tts_clone.on_utterance_end(Some(Box::new(|utterance| { println!("Finished speaking {:?}", utterance) })))?; tts_clone.on_utterance_stop(Some(Box::new(|utterance| { println!("Stopped speaking {:?}", utterance) })))?; } let Features { is_speaking, .. } = tts_clone.supported_features(); if is_speaking { println!("Are we speaking? {}", tts_clone.is_speaking()?); } tts_clone.speak("Hello, world.", false)?; let Features { rate, .. } = tts_clone.supported_features(); if rate { let original_rate = tts_clone.get_rate()?; tts_clone.speak(format!("Current rate: {}", original_rate), false)?; tts_clone.set_rate(tts_clone.max_rate())?; tts_clone.speak("This is very fast.", false)?; tts_clone.set_rate(tts_clone.min_rate())?; tts_clone.speak("This is very slow.", false)?; tts_clone.set_rate(tts_clone.normal_rate())?; tts_clone.speak("This is the normal rate.", false)?; tts_clone.set_rate(original_rate)?; } let Features { pitch, .. } = tts_clone.supported_features(); if pitch { let original_pitch = tts_clone.get_pitch()?; tts_clone.set_pitch(tts_clone.max_pitch())?; tts_clone.speak("This is high-pitch.", false)?; tts_clone.set_pitch(tts_clone.min_pitch())?; tts_clone.speak("This is low pitch.", false)?; tts_clone.set_pitch(tts_clone.normal_pitch())?; tts_clone.speak("This is normal pitch.", false)?; tts_clone.set_pitch(original_pitch)?; } let Features { volume, .. } = tts_clone.supported_features(); if volume { let original_volume = tts_clone.get_volume()?; tts_clone.set_volume(tts_clone.max_volume())?; tts_clone.speak("This is loud!", false)?; tts_clone.set_volume(tts_clone.min_volume())?; tts_clone.speak("This is quiet.", false)?; tts_clone.set_volume(tts_clone.normal_volume())?; tts_clone.speak("This is normal volume.", false)?; tts_clone.set_volume(original_volume)?; } tts_clone.speak("Goodbye.", false)?; let mut _input = String::new(); // The below is only needed to make the example run on MacOS because there is no NSRunLoop in this context. // It shouldn't be needed in an app or game that almost certainly has one already. #[cfg(target_os = "macos")] { let run_loop: id = unsafe { NSRunLoop::currentRunLoop() }; unsafe { let _: () = msg_send![run_loop, run]; } } io::stdin().read_line(&mut _input)?; Ok(()) }