Emits the [signal@GutterRenderer::activate] signal of the renderer. This is called from [class@Gutter] and should never have to be called manually.
a #GtkTextIter at the start of the line where the renderer is activated
a #GdkRectangle of the cell area where the renderer is activated
the button that was pressed
a #GdkModifierType
the number of button presses
See Implementation
Emits the [signal@GutterRenderer::activate] signal of the renderer. This is called from [class@Gutter] and should never have to be called manually.