gtk/auto/

color_chooser.rs

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::ffi;
use glib::{
    object::ObjectType as _,
    prelude::*,
    signal::{SignalHandlerId, connect_raw},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// [`ColorChooser`][crate::ColorChooser] is an interface that is implemented by widgets
    /// for choosing colors. Depending on the situation, colors may be
    /// allowed to have alpha (translucency).
    ///
    /// In GTK+, the main widgets that implement this interface are
    /// [`ColorChooserWidget`][crate::ColorChooserWidget], [`ColorChooserDialog`][crate::ColorChooserDialog] and [`ColorButton`][crate::ColorButton].
    ///
    /// ## Properties
    ///
    ///
    /// #### `rgba`
    ///  The ::rgba property contains the currently selected color,
    /// as a [`gdk::RGBA`][crate::gdk::RGBA] struct. The property can be set to change
    /// the current selection programmatically.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `use-alpha`
    ///  When ::use-alpha is [`true`], colors may have alpha (translucency)
    /// information. When it is [`false`], the [`gdk::RGBA`][crate::gdk::RGBA] struct obtained
    /// via the [`rgba`][struct@crate::ColorChooser#rgba] property will be forced to have
    /// alpha == 1.
    ///
    /// Implementations are expected to show alpha by rendering the color
    /// over a non-uniform background (like a checkerboard pattern).
    ///
    /// Readable | Writable
    ///
    /// ## Signals
    ///
    ///
    /// #### `color-activated`
    ///  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.
    ///
    ///
    ///
    /// # Implements
    ///
    /// [`ColorChooserExt`][trait@crate::prelude::ColorChooserExt], [`ColorChooserExtManual`][trait@crate::prelude::ColorChooserExtManual]
    #[doc(alias = "GtkColorChooser")]
    pub struct ColorChooser(Interface<ffi::GtkColorChooser, ffi::GtkColorChooserInterface>);

    match fn {
        type_ => || ffi::gtk_color_chooser_get_type(),
    }
}

impl ColorChooser {
    pub const NONE: Option<&'static ColorChooser> = None;
}

/// Trait containing all [`struct@ColorChooser`] methods.
///
/// # Implementors
///
/// [`ColorButton`][struct@crate::ColorButton], [`ColorChooserDialog`][struct@crate::ColorChooserDialog], [`ColorChooserWidget`][struct@crate::ColorChooserWidget], [`ColorChooser`][struct@crate::ColorChooser]
pub trait ColorChooserExt: IsA<ColorChooser> + 'static {
    /// Gets the currently-selected color.
    ///
    /// # Returns
    ///
    ///
    /// ## `color`
    /// a [`gdk::RGBA`][crate::gdk::RGBA] to fill in with the current color
    #[doc(alias = "gtk_color_chooser_get_rgba")]
    #[doc(alias = "get_rgba")]
    fn rgba(&self) -> gdk::RGBA {
        unsafe {
            let mut color = gdk::RGBA::uninitialized();
            ffi::gtk_color_chooser_get_rgba(
                self.as_ref().to_glib_none().0,
                color.to_glib_none_mut().0,
            );
            color
        }
    }

    /// Returns whether the color chooser shows the alpha channel.
    ///
    /// # Returns
    ///
    /// [`true`] if the color chooser uses the alpha channel,
    ///  [`false`] if not
    #[doc(alias = "gtk_color_chooser_get_use_alpha")]
    #[doc(alias = "get_use_alpha")]
    #[doc(alias = "use-alpha")]
    fn uses_alpha(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_color_chooser_get_use_alpha(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Sets the color.
    /// ## `color`
    /// the new color
    #[doc(alias = "gtk_color_chooser_set_rgba")]
    #[doc(alias = "rgba")]
    fn set_rgba(&self, color: &gdk::RGBA) {
        unsafe {
            ffi::gtk_color_chooser_set_rgba(self.as_ref().to_glib_none().0, color.to_glib_none().0);
        }
    }

    /// 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
    #[doc(alias = "gtk_color_chooser_set_use_alpha")]
    #[doc(alias = "use-alpha")]
    fn set_use_alpha(&self, use_alpha: bool) {
        unsafe {
            ffi::gtk_color_chooser_set_use_alpha(
                self.as_ref().to_glib_none().0,
                use_alpha.into_glib(),
            );
        }
    }

    /// 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
    #[doc(alias = "color-activated")]
    fn connect_color_activated<F: Fn(&Self, &gdk::RGBA) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn color_activated_trampoline<
            P: IsA<ColorChooser>,
            F: Fn(&P, &gdk::RGBA) + 'static,
        >(
            this: *mut ffi::GtkColorChooser,
            color: *mut gdk::ffi::GdkRGBA,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(
                    ColorChooser::from_glib_borrow(this).unsafe_cast_ref(),
                    &from_glib_borrow(color),
                )
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"color-activated".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    color_activated_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "rgba")]
    fn connect_rgba_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_rgba_trampoline<P: IsA<ColorChooser>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkColorChooser,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(ColorChooser::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::rgba".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_rgba_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "use-alpha")]
    fn connect_use_alpha_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_use_alpha_trampoline<
            P: IsA<ColorChooser>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkColorChooser,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(ColorChooser::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::use-alpha".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_use_alpha_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<ColorChooser>> ColorChooserExt for O {}