Struct DoubleConfig 

pub struct DoubleConfig {
    pub config_number: u8,
    pub call: String,
    pub display: String,
    pub tooltip: Option<String>,
    pub range: Option<RangeInclusive<f64>>,
    pub default_value: f64,
    pub group: Option<String>,
}

This provides a field for entering a numeric value of the given data type. A default value may be provided, as well as a range.

Typically, these configs are created in a lazy_static, and passed to ConfigStep::list_configs.

Example

use r_extcap::config::*;

let config = DoubleConfig::builder()
    .config_number(0)
    .call("delay")
    .display("Time delay")
    .tooltip("Time delay between packages")
    .range(-2.6..=8.2)
    .default_value(3.3)
    .build();
assert_eq!(
    format!("{}", ExtcapFormatter(&config)),
    "arg {number=0}{call=--delay}{display=Time delay}{tooltip=Time delay between packages}{range=-2.6,8.2}{default=3.3}{type=double}\n"
);

Fields

config_number: u8

The config number, a unique identifier for this config.

call: String

The command line option that will be sent to this extcap program. For example, if this field is foobar, and the corresponding value is 42, then --foobar 42 will be sent to this program during the extcap capture.

display: String

The user-friendly label for the numeric field.

tooltip: Option<String>

The tooltip shown on when hovering over the UI element.

range: Option<RangeInclusive<f64>>

The valid range of values for this config.

default_value: f64

The default value for this config.

group: Option<String>

The (user-visible) name of the tab which this config belongs to. If this is None, the config will be placed in a tab called “Default”.

Implementations

impl DoubleConfig

pub fn builder() -> DoubleConfigBuilder<((), (), (), (), (), (), ())>

Create a builder for building DoubleConfig. On the builder, call .config_number(...), .call(...), .display(...), .tooltip(...)(optional), .range(...)(optional), .default_value(...), .group(...)(optional) to set the values of the fields. Finally, call .build() to create the instance of DoubleConfig.

Trait Implementations

impl ConfigTrait for DoubleConfig

fn call(&self) -> &str

The command line option that will be sent to this extcap program. For example, if this field is foobar, and the corresponding value is 42, then --foobar 42 will be sent to this program during the extcap capture.

fn as_any(&self) -> &dyn Any

Returns this trait as an Any type.

impl Debug for DoubleConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PrintSentence for DoubleConfig

fn format_sentence(&self, f: &mut Formatter<'_>) -> Result

The extcap interface expects certain output “sentences” to stdout to communicate with Wireshark, like

fn print_sentence(&self)

Prints the extcap sentence to stdout.