Rust文本渲染库iced_glyphon的使用

iced_glyphon是为Rust GUI框架iced提供高级文本排版和字体渲染功能的临时分支库，它是一个基于wgpu的快速、简单的2D文本渲染解决方案。

示例代码

以下是一个使用iced_glyphon的基本示例：

use iced::widget::text;
use iced_glyphon::Text;
use iced::{Application, Settings};

struct Demo;

impl Application for Demo {
    type Message = ();
    type Flags = ();
    type Executor = iced::executor::Default;
    type Theme = iced::Theme;

    fn new(_flags: ()) -> (Self, iced::Command<Self::Message>) {
        (Demo, iced::Command::none())
    }

    fn title(&self) -> String {
        String::from("iced_glyphon示例")
    }

    fn view(&self) -> iced::Element<Self::Message> {
        // 使用iced_glyphon的Text组件
        Text::new("Hello, iced_glyphon!")
            .size(30)
            .into()
    }

    fn update(&mut self, _message: Self::Message) -> iced::Command<Self::Message> {
        iced::Command::none()
    }
}

fn main() -> iced::Result {
    Demo::run(Settings::default())
}

完整示例Demo

use iced::{
    widget::{column, container, scrollable, text},
    Alignment, Application, Command, Element, Length, Settings, Theme,
};
use iced_glyphon::Text;

fn main() -> iced::Result {
    TextRenderingDemo::run(Settings::default())
}

struct TextRenderingDemo {
    font_size: u16,
}

#[derive(Debug, Clone)]
enum Message {
    IncreaseFontSize,
    DecreaseFontSize,
}

impl Application for TextRenderingDemo {
    type Message = Message;
    type Flags = ();
    type Executor = iced::executor::Default;
    type Theme = Theme;

    fn new(_flags: ()) -> (Self, Command<Message>) {
        (
            TextRenderingDemo {
                font_size: 16,
            },
            Command::none(),
        )
    }

    fn title(&self) -> String {
        String::from("iced_glyphon高级示例")
    }

    fn update(&mut self, message: Message) -> Command<Message> {
        match message {
            Message::IncreaseFontSize => {
                self.font_size += 2;
            }
            Message::DecreaseFontSize => {
                if self.font_size > 10 {
                    self.font_size -= 2;
                }
            }
        }
        Command::none()
    }

    fn view(&self) -> Element<Message> {
        let controls = column![
            text("调整字体大小:").size(20),
            text(format!("当前大小: {}", self.font_size)),
            column![
                text("增加字体").size(14).on_press(Message::IncreaseFontSize),
                text("减小字体").size(14).on_press(Message::DecreaseFontSize),
            ]
            .spacing(10),
        ]
        .spacing(10)
        .align_items(Alignment::Center);

        let demo_text = Text::new(
            "这是一个使用iced_glyphon的示例文本，展示了高级文本渲染功能。\n\n\
             iced_glyphon提供了高质量的文本排版和字体渲染能力。",
        )
        .size(self.font_size);

        let content = column![controls, demo_text]
            .spacing(20)
            .padding(20)
            .align_items(Alignment::Center);

        container(scrollable(content))
            .width(Length::Fill)
            .height(Length::Fill)
            .center_x()
            .center_y()
            .into()
    }
}

安装

在您的项目目录中运行以下Cargo命令：

cargo add iced_glyphon

或者在您的Cargo.toml中添加以下行：

iced_glyphon = "0.6.0"

许可证

该项目采用以下任一许可证：

• Apache License, Version 2.0
• zlib License
• MIT License

贡献

除非您明确声明，否则任何有意提交用于此项目的贡献，如Apache 2.0许可证中所定义，都应按照上述三重许可证进行授权，不附加任何额外条款或条件。