tray-icon 0.23.1

Create tray icons for desktop applications
Documentation 
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// Copyright 2022-2022 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT

use crate::icon::{BadIcon, RgbaIcon};
use std::io::Cursor;

#[derive(Debug, Clone)]
pub struct PlatformIcon(RgbaIcon);

impl PlatformIcon {
    pub fn from_rgba(rgba: Vec<u8>, width: u32, height: u32) -> Result<Self, BadIcon> {
        Ok(PlatformIcon(RgbaIcon::from_rgba(rgba, width, height)?))
    }

    pub fn get_size(&self) -> (u32, u32) {
        (self.0.width, self.0.height)
    }

    pub fn to_png(&self) -> crate::Result<Vec<u8>> {
        let mut png = Vec::new();

        {
            let mut encoder =
                png::Encoder::new(Cursor::new(&mut png), self.0.width as _, self.0.height as _);
            encoder.set_color(png::ColorType::Rgba);
            encoder.set_depth(png::BitDepth::Eight);

            let mut writer = encoder.write_header()?;
            writer.write_image_data(&self.0.rgba)?;
        }

        Ok(png)
    }
}