Trait gtk4::prelude::ColorChooserExt

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pub trait ColorChooserExt: 'static {
    // Required methods
    fn rgba(&self) -> RGBA;
    fn uses_alpha(&self) -> bool;
    fn set_rgba(&self, color: &RGBA);
    fn set_use_alpha(&self, use_alpha: bool);
    fn connect_color_activated<F: Fn(&Self, &RGBA) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_rgba_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_use_alpha_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
}
Expand description

Trait containing all ColorChooser methods.

Implementors

ColorButton, ColorChooserDialog, ColorChooserWidget, ColorChooser

Required Methods§

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fn rgba(&self) -> RGBA

Gets the currently-selected color.

Returns
color

a gdk::RGBA to fill in with the current color

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fn uses_alpha(&self) -> bool

Returns whether the color chooser shows the alpha channel.

Returns

true if the color chooser uses the alpha channel, false if not

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fn set_rgba(&self, color: &RGBA)

Sets the color.

color

the new color

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fn set_use_alpha(&self, use_alpha: bool)

Sets whether or not the color chooser should use the alpha channel.

use_alpha

true if color chooser should use alpha channel, false if not

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fn connect_color_activated<F: Fn(&Self, &RGBA) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when a color is activated from the color chooser.

This usually happens when the user clicks a color swatch, or a color is selected and the user presses one of the keys Space, Shift+Space, Return or Enter.

color

the color

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fn connect_rgba_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

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fn connect_use_alpha_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Implementors§