struct Gtk::PrintOperation::PaginateSignal

• Gtk::PrintOperation::PaginateSignal
• GObject::Signal
• Struct
• Value
• Object

Overview

Emitted after the ::begin-print signal, but before the actual rendering starts.

It keeps getting emitted until a connected signal handler returns true.

The ::paginate signal is intended to be used for paginating a document in small chunks, to avoid blocking the user interface for a long time. The signal handler should update the number of pages using Gtk::PrintOperation#n_pages=, and return true if the document has been completely paginated.

If you don't need to do pagination in chunks, you can simply do it all in the ::begin-print handler, and set the number of pages from there.

Defined in:

Instance Method Summary

• #connect(*, after : Bool = false, &block : Proc(Gtk::PrintContext, Bool)) : GObject::SignalConnection
• #connect(handler : Proc(Gtk::PrintContext, Bool), *, after : Bool = false) : GObject::SignalConnection
• #connect(handler : Proc(Gtk::PrintOperation, Gtk::PrintContext, Bool), *, after : Bool = false) : GObject::SignalConnection
• #emit(context : Gtk::PrintContext) : Nil
• #name : String

  The signal name

Instance Method Detail