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// 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::CellArea;
use crate::CellRenderer;
use crate::TreeIter;
use crate::TreeModel;
use glib::object::IsA;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
glib::wrapper! {
/// [`CellLayout`][crate::CellLayout] is an interface to be implemented by all objects which
/// want to provide a [`TreeViewColumn`][crate::TreeViewColumn] like API for packing cells,
/// setting attributes and data funcs.
///
/// One of the notable features provided by implementations of
/// GtkCellLayout are attributes. Attributes let you set the properties
/// in flexible ways. They can just be set to constant values like regular
/// properties. But they can also be mapped to a column of the underlying
/// tree model with `gtk_cell_layout_set_attributes()`, which means that the value
/// of the attribute can change from cell to cell as they are rendered by
/// the cell renderer. Finally, it is possible to specify a function with
/// [`CellLayoutExt::set_cell_data_func()`][crate::prelude::CellLayoutExt::set_cell_data_func()] that is called to determine the
/// value of the attribute for each cell that is rendered.
///
/// # GtkCellLayouts as GtkBuildable
///
/// Implementations of GtkCellLayout which also implement the GtkBuildable
/// interface ([`CellView`][crate::CellView], [`IconView`][crate::IconView], [`ComboBox`][crate::ComboBox],
/// [`EntryCompletion`][crate::EntryCompletion], [`TreeViewColumn`][crate::TreeViewColumn]) accept GtkCellRenderer objects
/// as ``<child>`` elements in UI definitions. They support a custom ``<attributes>``
/// element for their children, which can contain multiple ``<attribute>``
/// elements. Each ``<attribute>`` element has a name attribute which specifies
/// a property of the cell renderer; the content of the element is the
/// attribute value.
///
/// This is an example of a UI definition fragment specifying attributes:
///
///
///
/// **⚠️ The following code is in xml ⚠️**
///
/// ```xml
/// <object class="GtkCellView">
/// <child>
/// <object class="GtkCellRendererText"/>
/// <attributes>
/// <attribute name="text">0</attribute>
/// </attributes>
/// </child>
/// </object>
/// ```
///
/// Furthermore for implementations of GtkCellLayout that use a [`CellArea`][crate::CellArea]
/// to lay out cells (all GtkCellLayouts in GTK+ use a GtkCellArea)
/// [cell properties][cell-properties] can also be defined in the format by
/// specifying the custom ``<cell-packing>`` attribute which can contain multiple
/// ``<property>`` elements defined in the normal way.
///
/// Here is a UI definition fragment specifying cell properties:
///
///
///
/// **⚠️ The following code is in xml ⚠️**
///
/// ```xml
/// <object class="GtkTreeViewColumn">
/// <child>
/// <object class="GtkCellRendererText"/>
/// <cell-packing>
/// <property name="align">True</property>
/// <property name="expand">False</property>
/// </cell-packing>
/// </child>
/// </object>
/// ```
///
/// # Subclassing GtkCellLayout implementations
///
/// When subclassing a widget that implements [`CellLayout`][crate::CellLayout] like
/// [`IconView`][crate::IconView] or [`ComboBox`][crate::ComboBox], there are some considerations related
/// to the fact that these widgets internally use a [`CellArea`][crate::CellArea].
/// The cell area is exposed as a construct-only property by these
/// widgets. This means that it is possible to e.g. do
///
///
///
/// **⚠️ The following code is in C ⚠️**
///
/// ```C
/// combo = g_object_new (GTK_TYPE_COMBO_BOX, "cell-area", my_cell_area, NULL);
/// ```
///
/// to use a custom cell area with a combo box. But construct properties
/// are only initialized after instance `init()`
/// functions have run, which means that using functions which rely on
/// the existence of the cell area in your subclass’ `init()` function will
/// cause the default cell area to be instantiated. In this case, a provided
/// construct property value will be ignored (with a warning, to alert
/// you to the problem).
///
///
///
/// **⚠️ The following code is in C ⚠️**
///
/// ```C
/// static void
/// my_combo_box_init (MyComboBox *b)
/// {
/// GtkCellRenderer *cell;
///
/// cell = gtk_cell_renderer_pixbuf_new ();
/// // The following call causes the default cell area for combo boxes,
/// // a GtkCellAreaBox, to be instantiated
/// gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (b), cell, FALSE);
/// ...
/// }
///
/// GtkWidget *
/// my_combo_box_new (GtkCellArea *area)
/// {
/// // This call is going to cause a warning about area being ignored
/// return g_object_new (MY_TYPE_COMBO_BOX, "cell-area", area, NULL);
/// }
/// ```
///
/// If supporting alternative cell areas with your derived widget is
/// not important, then this does not have to concern you. If you want
/// to support alternative cell areas, you can do so by moving the
/// problematic calls out of `init()` and into a `constructor()`
/// for your class.
///
/// # Implements
///
/// [`CellLayoutExt`][trait@crate::prelude::CellLayoutExt]
#[doc(alias = "GtkCellLayout")]
pub struct CellLayout(Interface<ffi::GtkCellLayout, ffi::GtkCellLayoutIface>);
match fn {
type_ => || ffi::gtk_cell_layout_get_type(),
}
}
impl CellLayout {
pub const NONE: Option<&'static CellLayout> = None;
}
/// Trait containing all [`struct@CellLayout`] methods.
///
/// # Implementors
///
/// [`AppChooserButton`][struct@crate::AppChooserButton], [`CellAreaBox`][struct@crate::CellAreaBox], [`CellArea`][struct@crate::CellArea], [`CellLayout`][struct@crate::CellLayout], [`CellView`][struct@crate::CellView], [`ComboBoxText`][struct@crate::ComboBoxText], [`ComboBox`][struct@crate::ComboBox], [`EntryCompletion`][struct@crate::EntryCompletion], [`IconView`][struct@crate::IconView], [`TreeViewColumn`][struct@crate::TreeViewColumn]
pub trait CellLayoutExt: 'static {
/// Adds an attribute mapping to the list in `self`.
///
/// The `column` is the column of the model to get a value from, and the
/// `attribute` is the parameter on `cell` to be set from the value. So for
/// example if column 2 of the model contains strings, you could have the
/// “text” attribute of a [`CellRendererText`][crate::CellRendererText] get its values from column 2.
/// ## `cell`
/// a [`CellRenderer`][crate::CellRenderer]
/// ## `attribute`
/// an attribute on the renderer
/// ## `column`
/// the column position on the model to get the attribute from
#[doc(alias = "gtk_cell_layout_add_attribute")]
fn add_attribute(&self, cell: &impl IsA<CellRenderer>, attribute: &str, column: i32);
/// Unsets all the mappings on all renderers on `self` and
/// removes all renderers from `self`.
#[doc(alias = "gtk_cell_layout_clear")]
fn clear(&self);
/// Clears all existing attributes previously set with
/// `gtk_cell_layout_set_attributes()`.
/// ## `cell`
/// a [`CellRenderer`][crate::CellRenderer] to clear the attribute mapping on
#[doc(alias = "gtk_cell_layout_clear_attributes")]
fn clear_attributes(&self, cell: &impl IsA<CellRenderer>);
/// Returns the underlying [`CellArea`][crate::CellArea] which might be `self`
/// if called on a [`CellArea`][crate::CellArea] or might be [`None`] if no [`CellArea`][crate::CellArea]
/// is used by `self`.
///
/// # Returns
///
/// the cell area used by `self`,
/// or [`None`] in case no cell area is used.
#[doc(alias = "gtk_cell_layout_get_area")]
#[doc(alias = "get_area")]
fn area(&self) -> Option<CellArea>;
/// Returns the cell renderers which have been added to `self`.
///
/// # Returns
///
///
/// a list of cell renderers. The list, but not the renderers has
/// been newly allocated and should be freed with `g_list_free()`
/// when no longer needed.
#[doc(alias = "gtk_cell_layout_get_cells")]
#[doc(alias = "get_cells")]
fn cells(&self) -> Vec<CellRenderer>;
/// Adds the `cell` to the end of `self`. If `expand` is [`false`], then the
/// `cell` is allocated no more space than it needs. Any unused space is
/// divided evenly between cells for which `expand` is [`true`].
///
/// Note that reusing the same cell renderer is not supported.
/// ## `cell`
/// a [`CellRenderer`][crate::CellRenderer]
/// ## `expand`
/// [`true`] if `cell` is to be given extra space allocated to `self`
#[doc(alias = "gtk_cell_layout_pack_end")]
fn pack_end(&self, cell: &impl IsA<CellRenderer>, expand: bool);
/// Packs the `cell` into the beginning of `self`. If `expand` is [`false`],
/// then the `cell` is allocated no more space than it needs. Any unused space
/// is divided evenly between cells for which `expand` is [`true`].
///
/// Note that reusing the same cell renderer is not supported.
/// ## `cell`
/// a [`CellRenderer`][crate::CellRenderer]
/// ## `expand`
/// [`true`] if `cell` is to be given extra space allocated to `self`
#[doc(alias = "gtk_cell_layout_pack_start")]
fn pack_start(&self, cell: &impl IsA<CellRenderer>, expand: bool);
/// Re-inserts `cell` at `position`.
///
/// Note that `cell` has already to be packed into `self`
/// for this to function properly.
/// ## `cell`
/// a [`CellRenderer`][crate::CellRenderer] to reorder
/// ## `position`
/// new position to insert `cell` at
#[doc(alias = "gtk_cell_layout_reorder")]
fn reorder(&self, cell: &impl IsA<CellRenderer>, position: i32);
//#[doc(alias = "gtk_cell_layout_set_attributes")]
//fn set_attributes(&self, cell: &impl IsA<CellRenderer>, : /*Unknown conversion*//*Unimplemented*/Basic: VarArgs);
/// Sets the `GtkCellLayoutDataFunc` to use for `self`.
///
/// This function is used instead of the standard attributes mapping
/// for setting the column value, and should set the value of `self`’s
/// cell renderer(s) as appropriate.
///
/// `func` may be [`None`] to remove a previously set function.
/// ## `cell`
/// a [`CellRenderer`][crate::CellRenderer]
/// ## `func`
/// the `GtkCellLayoutDataFunc` to use, or [`None`]
/// ## `func_data`
/// user data for `func`
#[doc(alias = "gtk_cell_layout_set_cell_data_func")]
fn set_cell_data_func(
&self,
cell: &impl IsA<CellRenderer>,
func: Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>,
);
}
impl<O: IsA<CellLayout>> CellLayoutExt for O {
fn add_attribute(&self, cell: &impl IsA<CellRenderer>, attribute: &str, column: i32) {
unsafe {
ffi::gtk_cell_layout_add_attribute(
self.as_ref().to_glib_none().0,
cell.as_ref().to_glib_none().0,
attribute.to_glib_none().0,
column,
);
}
}
fn clear(&self) {
unsafe {
ffi::gtk_cell_layout_clear(self.as_ref().to_glib_none().0);
}
}
fn clear_attributes(&self, cell: &impl IsA<CellRenderer>) {
unsafe {
ffi::gtk_cell_layout_clear_attributes(
self.as_ref().to_glib_none().0,
cell.as_ref().to_glib_none().0,
);
}
}
fn area(&self) -> Option<CellArea> {
unsafe {
from_glib_none(ffi::gtk_cell_layout_get_area(
self.as_ref().to_glib_none().0,
))
}
}
fn cells(&self) -> Vec<CellRenderer> {
unsafe {
FromGlibPtrContainer::from_glib_container(ffi::gtk_cell_layout_get_cells(
self.as_ref().to_glib_none().0,
))
}
}
fn pack_end(&self, cell: &impl IsA<CellRenderer>, expand: bool) {
unsafe {
ffi::gtk_cell_layout_pack_end(
self.as_ref().to_glib_none().0,
cell.as_ref().to_glib_none().0,
expand.into_glib(),
);
}
}
fn pack_start(&self, cell: &impl IsA<CellRenderer>, expand: bool) {
unsafe {
ffi::gtk_cell_layout_pack_start(
self.as_ref().to_glib_none().0,
cell.as_ref().to_glib_none().0,
expand.into_glib(),
);
}
}
fn reorder(&self, cell: &impl IsA<CellRenderer>, position: i32) {
unsafe {
ffi::gtk_cell_layout_reorder(
self.as_ref().to_glib_none().0,
cell.as_ref().to_glib_none().0,
position,
);
}
}
//fn set_attributes(&self, cell: &impl IsA<CellRenderer>, : /*Unknown conversion*//*Unimplemented*/Basic: VarArgs) {
// unsafe { TODO: call ffi:gtk_cell_layout_set_attributes() }
//}
fn set_cell_data_func(
&self,
cell: &impl IsA<CellRenderer>,
func: Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>,
) {
let func_data: Box_<
Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>,
> = Box_::new(func);
unsafe extern "C" fn func_func(
cell_layout: *mut ffi::GtkCellLayout,
cell: *mut ffi::GtkCellRenderer,
tree_model: *mut ffi::GtkTreeModel,
iter: *mut ffi::GtkTreeIter,
data: glib::ffi::gpointer,
) {
let cell_layout = from_glib_borrow(cell_layout);
let cell = from_glib_borrow(cell);
let tree_model = from_glib_borrow(tree_model);
let iter = from_glib_borrow(iter);
let callback: &Option<
Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>,
> = &*(data as *mut _);
if let Some(ref callback) = *callback {
callback(&cell_layout, &cell, &tree_model, &iter)
} else {
panic!("cannot get closure...")
};
}
let func = if func_data.is_some() {
Some(func_func as _)
} else {
None
};
unsafe extern "C" fn destroy_func(data: glib::ffi::gpointer) {
let _callback: Box_<
Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>,
> = Box_::from_raw(data as *mut _);
}
let destroy_call4 = Some(destroy_func as _);
let super_callback0: Box_<
Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>,
> = func_data;
unsafe {
ffi::gtk_cell_layout_set_cell_data_func(
self.as_ref().to_glib_none().0,
cell.as_ref().to_glib_none().0,
func,
Box_::into_raw(super_callback0) as *mut _,
destroy_call4,
);
}
}
}
impl fmt::Display for CellLayout {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("CellLayout")
}
}