Breakpoint.addSetter

Adds a setter to self.

The setter will automatically set property on object to value when applying the breakpoint, and set it back to its original value upon unapplying it.

::: note Setting properties to their original values does not work for properties that have irreversible side effects. For example, changing gtk.button.Button.utf8 while propertyGtk.Button:icon-name is set will reset the icon. However, resetting the label will not set icon-name to its original value.

Use the signalBreakpoint::apply and signalBreakpoint::unapply signals for those properties instead, as follows:

static void
breakpoint_apply_cb (MyWidget *self)
{
  gtk_button_set_icon_name (self->button, "go-previous-symbolic");
}

static void
breakpoint_apply_cb (MyWidget *self)
{
  gtk_button_set_label (self->button, _("_Back"));
}

// ...

g_signal_connect_swapped (breakpoint, "apply",
                          G_CALLBACK (breakpoint_apply_cb), self);
g_signal_connect_swapped (breakpoint, "unapply",
                          G_CALLBACK (breakpoint_unapply_cb), self);