Trait gtk4::prelude::CellRendererExtManual

source · 
pub trait CellRendererExtManual {
    // Required methods
    fn activate(
        &self,
        event: &impl AsRef<Event>,
        widget: &impl IsA<Widget>,
        path: &str,
        background_area: &Rectangle,
        cell_area: &Rectangle,
        flags: CellRendererState
    ) -> bool;
    fn start_editing(
        &self,
        event: Option<&impl AsRef<Event>>,
        widget: &impl IsA<Widget>,
        path: &str,
        background_area: &Rectangle,
        cell_area: &Rectangle,
        flags: CellRendererState
    ) -> Option<CellEditable>;
}
Expand description

Trait containing manually implemented methods of CellRenderer.

Required Methods§

source

fn activate( &self, event: &impl AsRef<Event>, widget: &impl IsA<Widget>, path: &str, background_area: &Rectangle, cell_area: &Rectangle, flags: CellRendererState ) -> bool

Passes an activate event to the cell renderer for possible processing. Some cell renderers may use events; for example, CellRendererToggle toggles when it gets a mouse click.

event

a gdk::Event

widget

widget that received the event

path

widget-dependent string representation of the event location; e.g. for TreeView, a string representation of TreePath

background_area

background area as passed to gtk_cell_renderer_render()

cell_area

cell area as passed to gtk_cell_renderer_render()

flags

render flags

Returns

true if the event was consumed/handled

source

fn start_editing( &self, event: Option<&impl AsRef<Event>>, widget: &impl IsA<Widget>, path: &str, background_area: &Rectangle, cell_area: &Rectangle, flags: CellRendererState ) -> Option<CellEditable>

Starts editing the contents of this @self, through a new CellEditable widget created by the CellRendererClass.start_editing virtual function.

event

a gdk::Event

widget

widget that received the event

path

widget-dependent string representation of the event location; e.g. for TreeView, a string representation of TreePath

background_area

background area as passed to gtk_cell_renderer_render()

cell_area

cell area as passed to gtk_cell_renderer_render()

flags

render flags

Returns

A new CellEditable for editing this @self, or None if editing is not possible

Implementors§