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CellLayoutExt

gtk::prelude

Trait CellLayoutExt 

Source 
pub trait CellLayoutExt:
    IsA<CellLayout>
    + Sealed
    + 'static {
    // Provided methods
    fn add_attribute(
        &self,
        cell: &impl IsA<CellRenderer>,
        attribute: &str,
        column: i32,
    ) { ... }
    fn clear(&self) { ... }
    fn clear_attributes(&self, cell: &impl IsA<CellRenderer>) { ... }
    fn area(&self) -> Option<CellArea> { ... }
    fn cells(&self) -> Vec<CellRenderer> { ... }
    fn pack_end(&self, cell: &impl IsA<CellRenderer>, expand: bool) { ... }
    fn pack_start(&self, cell: &impl IsA<CellRenderer>, expand: bool) { ... }
    fn reorder(&self, cell: &impl IsA<CellRenderer>, position: i32) { ... }
    fn set_cell_data_func(
        &self,
        cell: &impl IsA<CellRenderer>,
        func: Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>,
    ) { ... }
}
Expand description

Trait containing all CellLayout methods.

§Implementors

AppChooserButton, CellAreaBox, CellArea, CellLayout, CellView, ComboBoxText, ComboBox, EntryCompletion, IconView, TreeViewColumn

Provided Methods§

Source

fn add_attribute( &self, cell: &impl IsA<CellRenderer>, attribute: &str, column: i32, )

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 get its values from column 2.

§cell

a CellRenderer

§attribute

an attribute on the renderer

§column

the column position on the model to get the attribute from

Source

fn clear(&self)

Unsets all the mappings on all renderers on self and removes all renderers from self.

Source

fn clear_attributes(&self, cell: &impl IsA<CellRenderer>)

Clears all existing attributes previously set with gtk_cell_layout_set_attributes().

§cell

a CellRenderer to clear the attribute mapping on

Source

fn area(&self) -> Option<CellArea>

Returns the underlying CellArea which might be self if called on a CellArea or might be None if no CellArea is used by self.

§Returns

the cell area used by self, or None in case no cell area is used.

Source

fn cells(&self) -> Vec<CellRenderer>

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.

Source

fn pack_end(&self, cell: &impl IsA<CellRenderer>, expand: bool)

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

§expand

true if cell is to be given extra space allocated to self

Source

fn pack_start(&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

§expand

true if cell is to be given extra space allocated to self

Source

fn reorder(&self, cell: &impl IsA<CellRenderer>, position: i32)

Re-inserts cell at position.

Note that cell has already to be packed into self for this to function properly.

§cell

a CellRenderer to reorder

§position

new position to insert cell at

Source

fn set_cell_data_func( &self, cell: &impl IsA<CellRenderer>, func: Option<Box_<dyn Fn(&CellLayout, &CellRenderer, &TreeModel, &TreeIter) + 'static>>, )

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

§func

the GtkCellLayoutDataFunc to use, or None

§func_data

user data for func

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§