62 lines
1.9 KiB
Rust
62 lines
1.9 KiB
Rust
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use super::{Coord, Size, WindowPositions};
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use winapi::um::wincon::CONSOLE_SCREEN_BUFFER_INFO;
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use std::mem::zeroed;
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/// This type is a wrapper for `CONSOLE_SCREEN_BUFFER_INFO` and has some methods to extract information from it.
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///
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/// Wraps the underlying type: [CONSOLE_SCREEN_BUFFER_INFO]
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/// link: [https://docs.microsoft.com/en-us/windows/console/console-screen-buffer-info-str]
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pub struct ScreenBufferInfo(pub CONSOLE_SCREEN_BUFFER_INFO);
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impl ScreenBufferInfo {
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pub fn new() -> ScreenBufferInfo {
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ScreenBufferInfo(unsafe { zeroed() })
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}
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/// This will return the buffer size.
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///
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/// Will take `dwSize`from the current screen buffer and convert it into the `Size`.
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pub fn buffer_size(&self) -> Size {
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Size::from(self.0.dwSize)
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}
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/// This will return the terminal size.
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///
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/// Will calculate the whit and height from `srWindow` and convert it into a `Size`.
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pub fn terminal_size(&self) -> Size {
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(Size::new(
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self.0.srWindow.Right - self.0.srWindow.Left,
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self.0.srWindow.Bottom - self.0.srWindow.Top,
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))
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}
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/// This will return the terminal window properties.
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///
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/// Will take `srWindow` and convert it into the `WindowPositions` type.
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pub fn terminal_window(&self) -> WindowPositions {
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WindowPositions::from(self.0)
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}
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/// This will return the terminal window properties.
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///
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/// Will take `wAttributes` from the current screen buffer.
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pub fn attributes(&self) -> u16 {
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self.0.wAttributes
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}
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/// This will return the current cursor position.
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///
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/// Will take `dwCursorPosition` from the current screen buffer.
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pub fn cursor_pos(&self) -> Coord {
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Coord::from(self.0.dwCursorPosition)
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}
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}
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impl From<CONSOLE_SCREEN_BUFFER_INFO> for ScreenBufferInfo {
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fn from(csbi: CONSOLE_SCREEN_BUFFER_INFO) -> Self {
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ScreenBufferInfo(csbi)
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}
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}
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