57 lines
2.6 KiB
Rust
57 lines
2.6 KiB
Rust
//! A module that contains all the actions related to cursor movement in the terminal.
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//! Like: moving the cursor position; saving and resetting the cursor position; hiding showing and control the blinking of the cursor.
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//!
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//! Note that positions of the cursor are 0 -based witch means that the coordinates (cells) starts counting from 0
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mod cursor;
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#[cfg(test)]
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mod test;
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mod ansi_cursor;
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#[cfg(target_os = "windows")]
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mod winapi_cursor;
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use self::ansi_cursor::AnsiCursor;
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#[cfg(target_os = "windows")]
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use self::winapi_cursor::WinApiCursor;
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pub use self::cursor::{cursor, from_screen, TerminalCursor};
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use super::functions;
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use common::error::Result;
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use std::sync::Arc;
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use TerminalOutput;
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///! This trait defines the actions that can be performed with the terminal cursor.
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///! This trait can be implemented so that a concrete implementation of the ITerminalCursor can fulfill
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///! the wishes to work on a specific platform.
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///!
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///! ## For example:
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///!
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///! This trait is implemented for `WinApi` (Windows specific) and `ANSI` (Unix specific),
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///! so that cursor related actions can be performed on both UNIX and Windows systems.
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trait ITerminalCursor: Sync + Send {
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/// Goto some location (x,y) in the context.
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fn goto(&self, x: u16, y: u16, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Get the location (x,y) of the current cursor in the context
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fn pos(&self) -> (u16, u16);
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/// Move cursor n times up
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fn move_up(&self, count: u16, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Move the cursor `n` times to the right.
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fn move_right(&self, count: u16, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Move the cursor `n` times down.
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fn move_down(&self, count: u16, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Move the cursor `n` times left.
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fn move_left(&self, count: u16, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Save cursor position so that its saved position can be recalled later. Note that this position is stored program based not per instance of the cursor struct.
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fn save_position(&self, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Return to saved cursor position
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fn reset_position(&self, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Hide the terminal cursor.
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fn hide(&self, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Show the terminal cursor
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fn show(&self, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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/// Enable or disable the blinking of the cursor.
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fn blink(&self, blink: bool, stdout: &Option<&Arc<TerminalOutput>>) -> Result<()>;
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}
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