gtkmm: Gtk::PrintOperation Class Reference

PrintOperation is the high-level, portable printing API. More...

#include <gtkmm/printoperation.h>

Inheritance diagram for Gtk::PrintOperation:

Public Types

enum  Result {

  Result::ERROR,

  Result::APPLY,

  Result::CANCEL,

  Result::IN_PROGRESS

}
 A value of this type is returned by Gtk::PrintOperation::run(). More...

 
enum  Action {

  Action::PRINT_DIALOG,

  Action::PRINT,

  Action::PREVIEW,

  Action::EXPORT

}
 The action parameter to Gtk::PrintOperation::run() determines what action the print operation should perform. More...

 
- Public Types inherited from Glib::Object
typedef void(*)(gpointer data DestroyNotify)
 
- Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify func_destroy_notify
 
- Public Types inherited from sigc::notifiable
typedef internal::func_destroy_notify func_destroy_notify
 

Public Member Functions

 PrintOperation (PrintOperation&& src) noexcept
 
PrintOperationoperator= (PrintOperation&& src) noexcept
 
 ~PrintOperation () noexcept override
 
GtkPrintOperation* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkPrintOperation* gobj () const
 Provides access to the underlying C GObject. More...

 
GtkPrintOperation* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...

 
void set_default_page_setup (const Glib::RefPtr< PageSetup >& default_page_setup)
 Makes default_page_setup the default page setup for op. More...

 
Glib::RefPtr< PageSetupget_default_page_setup ()
 Returns the default page setup, see set_default_page_setup(). More...

 
Glib::RefPtr< const PageSetupget_default_page_setup () const
 Returns the default page setup, see set_default_page_setup(). More...

 
void set_print_settings (const Glib::RefPtr< PrintSettings >& print_settings)
 Sets the print settings for op. More...

 
Glib::RefPtr< PrintSettingsget_print_settings ()
 Returns the current print settings. More...

 
Glib::RefPtr< const PrintSettingsget_print_settings () const
 Returns the current print settings. More...

 
void set_job_name (const Glib::ustring& job_name)
 Sets the name of the print job. More...

 
void set_n_pages (int n_pages)
 Sets the number of pages in the document. More...

 
void set_current_page (int current_page)
 Sets the current page. More...

 
void set_use_full_page (bool use_full_page=true)
 If use_full_page is true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet). More...

 
void set_unit (Unit unit)
 Sets up the transformation for the cairo context obtained from Gtk::PrintContext in such a way that distances are measured in units of unit. More...

 
void set_export_filename (const std::string& filename)
 Sets up the Gtk::PrintOperation to generate a file instead of showing the print dialog. More...

 
void set_track_print_status (bool track_status=true)
 If track_status is true, the print operation will try to continue report on the status of the print job in the printer queues and printer. More...

 
void set_show_progress (bool show_progress=true)
 If show_progress is true, the print operation will show a progress dialog during the print operation. More...

 
void set_allow_async (bool allow_async=true)
 Sets whether the run() may return before the print operation is completed. More...

 
void set_custom_tab_label (const Glib::ustring& label)
 Sets the label for the tab holding custom widgets. More...

 
Result run (Action action=Action::PRINT_DIALOG)
 See the run() method that takes both action and parent parameters. More...

 
Result run (Action action, Window& parent)
 Runs the print operation, by first letting the user modify print settings in the print dialog, and then print the document. More...

 
PrintStatus get_status () const
 Returns the status of the print operation. More...

 
Glib::ustring get_status_string () const
 Returns a string representation of the status of the print operation. More...

 
void cancel ()
 Cancels a running print operation. More...

 
bool is_finished () const
 A convenience function to find out if the print operation is finished, either successfully (Gtk::PrintStatus::FINISHED) or unsuccessfully (Gtk::PrintStatus::FINISHED_ABORTED). More...

 
void draw_page_finish ()
 Signalize that drawing of particular page is complete. More...

 
void set_defer_drawing ()
 Sets up the Gtk::PrintOperation to wait for calling of draw_page_finish() from application. More...

 
void set_support_selection (bool support_selection=true)
 Sets whether selection is supported by Gtk::PrintOperation. More...

 
bool get_support_selection () const
 Gets the value of Gtk::PrintOperation::property_support_selection() property. More...

 
void set_has_selection (bool has_selection=true)
 Sets whether there is a selection to print. More...

 
bool get_has_selection () const
 Gets the value of Gtk::PrintOperation::property_has_selection() property. More...

 
void set_embed_page_setup (bool embed=true)
 Embed page size combo box and orientation combo box into page setup page. More...

 
bool get_embed_page_setup () const
 Gets the value of Gtk::PrintOperation::property_embed_page_setup() property. More...

 
int get_n_pages_to_print () const
 Returns the number of pages that will be printed. More...

 
Glib::SignalProxy< void(Result)> signal_done ()
 
Glib::SignalProxy< void(const Glib::RefPtr< PrintContext >&)> signal_begin_print ()
 
Glib::SignalProxy< bool(const Glib::RefPtr< PrintContext >&)> signal_paginate ()
 
Glib::SignalProxy< void(const Glib::RefPtr< PrintContext >&, int, const Glib::RefPtr< PageSetup >&)> signal_request_page_setup ()
 
Glib::SignalProxy< void(const Glib::RefPtr< PrintContext >&, int)> signal_draw_page ()
 
Glib::SignalProxy< void(const Glib::RefPtr< PrintContext >&)> signal_end_print ()
 
Glib::SignalProxy< void()> signal_status_changed ()
 
Glib::SignalProxy< Widget*()> signal_create_custom_widget ()
 
Glib::SignalProxy< void(Widget*)> signal_custom_widget_apply ()
 
Glib::SignalProxy< bool(const Glib::RefPtr< PrintOperationPreview >&, const Glib::RefPtr< PrintContext >&, Window*)> signal_preview ()
 
Glib::SignalProxy< void(Widget*, const Glib::RefPtr< PageSetup >&, const Glib::RefPtr< PrintSettings >&)> signal_update_custom_widget ()
 
Glib::PropertyProxy< Glib::RefPtr< PageSetup > > property_default_page_setup ()
 The Gtk::PageSetup used by default. More...

 
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< PageSetup > > property_default_page_setup () const
 The Gtk::PageSetup used by default. More...

 
Glib::PropertyProxy< Glib::RefPtr< PrintSettings > > property_print_settings ()
 The Gtk::PrintSettings used for initializing the dialog. More...

 
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< PrintSettings > > property_print_settings () const
 The Gtk::PrintSettings used for initializing the dialog. More...

 
Glib::PropertyProxy< Glib::ustringproperty_job_name ()
 A string used to identify the job (e.g. in monitoring applications like eggcups). More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_job_name () const
 A string used to identify the job (e.g. in monitoring applications like eggcups). More...

 
Glib::PropertyProxy< int > property_n_pages ()
 The number of pages in the document. More...

 
Glib::PropertyProxy_ReadOnly< int > property_n_pages () const
 The number of pages in the document. More...

 
Glib::PropertyProxy< int > property_current_page ()
 The current page in the document. More...

 
Glib::PropertyProxy_ReadOnly< int > property_current_page () const
 The current page in the document. More...

 
Glib::PropertyProxy< bool > property_use_full_page ()
 If true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet). More...

 
Glib::PropertyProxy_ReadOnly< bool > property_use_full_page () const
 If true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet). More...

 
Glib::PropertyProxy< bool > property_track_print_status ()
 If true, the print operation will try to continue report on the status of the print job in the printer queues and printer. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_track_print_status () const
 If true, the print operation will try to continue report on the status of the print job in the printer queues and printer. More...

 
Glib::PropertyProxy< Unitproperty_unit ()
 The transformation for the cairo context obtained from Gtk::PrintContext is set up in such a way that distances are measured in units of unit. More...

 
Glib::PropertyProxy_ReadOnly< Unitproperty_unit () const
 The transformation for the cairo context obtained from Gtk::PrintContext is set up in such a way that distances are measured in units of unit. More...

 
Glib::PropertyProxy< bool > property_show_progress ()
 Determines whether to show a progress dialog during the print operation. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_show_progress () const
 Determines whether to show a progress dialog during the print operation. More...

 
Glib::PropertyProxy< bool > property_allow_async ()
 Determines whether the print operation may run asynchronously or not. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_allow_async () const
 Determines whether the print operation may run asynchronously or not. More...

 
Glib::PropertyProxy< std::stringproperty_export_filename ()
 The name of a file to generate instead of showing the print dialog. More...

 
Glib::PropertyProxy_ReadOnly< std::stringproperty_export_filename () const
 The name of a file to generate instead of showing the print dialog. More...

 
Glib::PropertyProxy_ReadOnly< PrintStatusproperty_status () const
 The status of the print operation. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_status_string () const
 A string representation of the status of the print operation. More...

 
Glib::PropertyProxy< Glib::ustringproperty_custom_tab_label ()
 Used as the label of the tab containing custom widgets. More...

 
Glib::PropertyProxy_ReadOnly< Glib::ustringproperty_custom_tab_label () const
 Used as the label of the tab containing custom widgets. More...

 
Glib::PropertyProxy< bool > property_support_selection ()
 If true, the print operation will support print of selection. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_support_selection () const
 If true, the print operation will support print of selection. More...

 
Glib::PropertyProxy< bool > property_has_selection ()
 Determines whether there is a selection in your application. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_has_selection () const
 Determines whether there is a selection in your application. More...

 
Glib::PropertyProxy< bool > property_embed_page_setup ()
 If true, page size combo box and orientation combo box are embedded into page setup page. More...

 
Glib::PropertyProxy_ReadOnly< bool > property_embed_page_setup () const
 If true, page size combo box and orientation combo box are embedded into page setup page. More...

 
Glib::PropertyProxy_ReadOnly< int > property_n_pages_to_print () const
 The number of pages that will be printed. More...

 
- Public Member Functions inherited from Glib::Object
 Object (const Object &)=delete
 
Objectoperator= (const Object &)=delete
 
 Object (Object &&src) noexcept
 
Objectoperator= (Object &&src) noexcept
 
void * get_data (const QueryQuark &key)
 
void set_data (const Quark &key, void *data)
 
void set_data (const Quark &key, void *data, DestroyNotify notify)
 
void remove_data (const QueryQuark &quark)
 
void * steal_data (const QueryQuark &quark)
 
Glib::RefPtr< Glib::Objectwrap (GObject *object, bool take_copy=false)
 
- Public Member Functions inherited from Glib::ObjectBase
 ObjectBase (const ObjectBase &)=delete
 
ObjectBaseoperator= (const ObjectBase &)=delete
 
void set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value)
 
void get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const
 
void set_property (const Glib::ustring &property_name, const PropertyType &value)
 
void get_property (const Glib::ustring &property_name, PropertyType &value) const
 
PropertyType get_property (const Glib::ustring &property_name) const
 
sigc::connection connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void()> &slot)
 
sigc::connection connect_property_changed (const Glib::ustring &property_name, sigc::slot< void()> &&slot)
 
void freeze_notify ()
 
void thaw_notify ()
 
virtual void reference () const
 
virtual void unreference () const
 
GObject * gobj ()
 
const GObject * gobj () const
 
GObject * gobj_copy () const
 
- Public Member Functions inherited from sigc::trackable
 trackable () noexcept
 
 trackable (const trackable &src) noexcept
 
 trackable (trackable &&src) noexcept
 
 ~trackable ()
 
void add_destroy_notify_callback (notifiable *data, func_destroy_notify func) const
 
void notify_callbacks ()
 
trackableoperator= (const trackable &src)
 
trackableoperator= (trackable &&src) noexcept
 
void remove_destroy_notify_callback (notifiable *data) const
 
- Public Member Functions inherited from Gtk::PrintOperationPreview
 PrintOperationPreview (PrintOperationPreview&& src) noexcept
 
PrintOperationPreviewoperator= (PrintOperationPreview&& src) noexcept
 
 ~PrintOperationPreview () noexcept override
 
GtkPrintOperationPreview* gobj ()
 Provides access to the underlying C GObject. More...

 
const GtkPrintOperationPreview* gobj () const
 Provides access to the underlying C GObject. More...

 
void render_page (int page_nr)
 Renders a page to the preview, using the print context that was passed to the Gtk::PrintOperation::signal_preview() handler together with preview. More...

 
void end_preview ()
 Ends a preview. More...

 
bool is_selected (int page_nr) const
 Returns whether the given page is included in the set of pages that have been selected for printing. More...

 
Glib::SignalProxy< void(const Glib::RefPtr< PrintContext >&)> signal_ready ()
 
Glib::SignalProxy< void(const Glib::RefPtr< PrintContext >&, const Glib::RefPtr< PageSetup >&)> signal_got_page_size ()
 
- Public Member Functions inherited from Glib::Interface
 Interface ()
 
 Interface (Interface &&src) noexcept
 
Interfaceoperator= (Interface &&src) noexcept
 
 Interface (const Glib::Interface_Class &interface_class)
 
 Interface (GObject *castitem)
 
 ~Interface () noexcept override
 
 Interface (const Interface &)=delete
 
Interfaceoperator= (const Interface &)=delete
 
GObject * gobj ()
 
const GObject * gobj () const
 

Static Public Member Functions

static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
static Glib::RefPtr< PrintOperationcreate ()
 
- Static Public Member Functions inherited from Gtk::PrintOperationPreview
static void add_interface (GType gtype_implementer)
 
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 

Protected Member Functions

 PrintOperation ()
 
virtual void on_done (Result result)
 This is a default handler for the signal signal_done(). More...

 
virtual void on_begin_print (const Glib::RefPtr< PrintContext >& context)
 This is a default handler for the signal signal_begin_print(). More...

 
virtual bool on_paginate (const Glib::RefPtr< PrintContext >& context)
 This is a default handler for the signal signal_paginate(). More...

 
virtual void on_request_page_setup (const Glib::RefPtr< PrintContext >& context, int page_no, const Glib::RefPtr< PageSetup >& setup)
 This is a default handler for the signal signal_request_page_setup(). More...

 
virtual void on_draw_page (const Glib::RefPtr< PrintContext >& context, int page_nr)
 This is a default handler for the signal signal_draw_page(). More...

 
virtual void on_end_print (const Glib::RefPtr< PrintContext >& context)
 This is a default handler for the signal signal_end_print(). More...

 
virtual void on_status_changed ()
 This is a default handler for the signal signal_status_changed(). More...

 
virtual Widgeton_create_custom_widget ()
 This is a default handler for the signal signal_create_custom_widget(). More...

 
virtual void on_custom_widget_apply (Widget* widget)
 This is a default handler for the signal signal_custom_widget_apply(). More...

 
virtual bool on_preview (const Glib::RefPtr< PrintOperationPreview >& preview, const Glib::RefPtr< PrintContext >& context, Window* parent)
 This is a default handler for the signal signal_preview(). More...

 
virtual void on_update_custom_widget (Widget* widget, const Glib::RefPtr< PageSetup >& setup, const Glib::RefPtr< PrintSettings >& settings)
 This is a default handler for the signal signal_update_custom_widget(). More...

 
- Protected Member Functions inherited from Glib::Object
 Object ()
 
 Object (const Glib::ConstructParams &construct_params)
 
 Object (GObject *castitem)
 
 ~Object () noexcept override
 
- Protected Member Functions inherited from Glib::ObjectBase
 ObjectBase ()
 
 ObjectBase (const char *custom_type_name)
 
 ObjectBase (const std::type_info &custom_type_info)
 
 ObjectBase (ObjectBase &&src) noexcept
 
ObjectBaseoperator= (ObjectBase &&src) noexcept
 
virtual ~ObjectBase () noexcept=0
 
void initialize (GObject *castitem)
 
void initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper)
 
- Protected Member Functions inherited from Gtk::PrintOperationPreview
 PrintOperationPreview ()
 You should derive from this class to use it. More...

 
virtual void render_page_vfunc (int page_nr)
 
virtual void end_preview_vfunc ()
 
virtual bool is_selected_vfunc (int page_nr) const
 
virtual void on_ready (const Glib::RefPtr< PrintContext >& context)
 This is a default handler for the signal signal_ready(). More...

 
virtual void on_got_page_size (const Glib::RefPtr< PrintContext >& context, const Glib::RefPtr< PageSetup >& page_setup)
 This is a default handler for the signal signal_got_page_size(). More...

 

Related Functions

(Note that these are not member functions.)

Glib::RefPtr< Gtk::PrintOperationwrap (GtkPrintOperation* object, bool take_copy=false)
 A Glib::wrap() method for this object. More...

 

Detailed Description

PrintOperation is the high-level, portable printing API.

It looks a bit different than other GTK+ dialogs such as the FileChooser, since some platforms don't expose enough infrastructure to implement a good print dialog. On such platforms, PrintOperation uses the native print dialog. On platforms which do not provide a native print dialog, GTK+ uses its own, see PrintUnixDialog.

The typical way to use the high-level printing API is to create a PrintOperation object when the user chooses to print. Then you set some properties on it,such as the page size, any PrintSettings from previous print operations, the number of pages, the current page, etc.

Then you start the print operation by calling run(). It will then show a dialog to let the user select a printer and options. When the user finishes the dialog various signals will be emitted by the PrintOperation for you to handle, the main one being draw_page. You should then render the page on the provided PrintContext using Cairo.

Since gtkmm 2.10:

Constructor & Destructor Documentation

Gtk::PrintOperation::PrintOperation ( PrintOperation&&  src)
noexcept
Gtk::PrintOperation::~PrintOperation ( )
overridenoexcept
Gtk::PrintOperation::PrintOperation ( )
protected

Member Function Documentation

void Gtk::PrintOperation::cancel ( )

Cancels a running print operation.

This function may be called from a Gtk::PrintOperation::signal_begin_print(), Gtk::PrintOperation::signal_paginate() or Gtk::PrintOperation::signal_draw_page() signal handler to stop the currently running print operation.

static Glib::RefPtr<PrintOperation> Gtk::PrintOperation::create ( )
static
void Gtk::PrintOperation::draw_page_finish ( )

Signalize that drawing of particular page is complete.

It is called after completion of page drawing (e.g. drawing in another thread). If set_defer_drawing() was called before, then this function has to be called by application. In another case it is called by the library itself.

Glib::RefPtr<PageSetup> Gtk::PrintOperation::get_default_page_setup ( )

Returns the default page setup, see set_default_page_setup().

Returns
The default page setup.
Glib::RefPtr<const PageSetup> Gtk::PrintOperation::get_default_page_setup ( ) const

Returns the default page setup, see set_default_page_setup().

Returns
The default page setup.
bool Gtk::PrintOperation::get_embed_page_setup ( ) const

Gets the value of Gtk::PrintOperation::property_embed_page_setup() property.

Returns
Whether page setup selection combos are embedded.
bool Gtk::PrintOperation::get_has_selection ( ) const

Gets the value of Gtk::PrintOperation::property_has_selection() property.

Returns
Whether there is a selection.
int Gtk::PrintOperation::get_n_pages_to_print ( ) const

Returns the number of pages that will be printed.

Note that this value is set during print preparation phase (Gtk::PrintStatus::PREPARING), so this function should never be called before the data generation phase (Gtk::PrintStatus::GENERATING_DATA). You can connect to the Gtk::PrintOperation::signal_status_changed() signal and call get_n_pages_to_print() when print status is Gtk::PrintStatus::GENERATING_DATA. This is typically used to track the progress of print operation.

Returns
The number of pages that will be printed.
Glib::RefPtr<PrintSettings> Gtk::PrintOperation::get_print_settings ( )

Returns the current print settings.

Note that the return value is nullptr until either set_print_settings() or run() have been called.

Returns
The current print settings of op.
Glib::RefPtr<const PrintSettings> Gtk::PrintOperation::get_print_settings ( ) const

Returns the current print settings.

Note that the return value is nullptr until either set_print_settings() or run() have been called.

Returns
The current print settings of op.
PrintStatus Gtk::PrintOperation::get_status ( ) const

Returns the status of the print operation.

Also see get_status_string().

Returns
The status of the print operation.
Glib::ustring Gtk::PrintOperation::get_status_string ( ) const

Returns a string representation of the status of the print operation.

The string is translated and suitable for displaying the print status e.g. in a Gtk::Statusbar.

Use get_status() to obtain a status value that is suitable for programmatic use.

Returns
A string representation of the status of the print operation.
bool Gtk::PrintOperation::get_support_selection ( ) const

Gets the value of Gtk::PrintOperation::property_support_selection() property.

Returns
Whether the application supports print of selection.
static GType Gtk::PrintOperation::get_type ( )
static

Get the GType for this class, for use with the underlying GObject type system.

GtkPrintOperation* Gtk::PrintOperation::gobj ( )
inline

Provides access to the underlying C GObject.

const GtkPrintOperation* Gtk::PrintOperation::gobj ( ) const
inline

Provides access to the underlying C GObject.

GtkPrintOperation* Gtk::PrintOperation::gobj_copy ( )

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

bool Gtk::PrintOperation::is_finished ( ) const

A convenience function to find out if the print operation is finished, either successfully (Gtk::PrintStatus::FINISHED) or unsuccessfully (Gtk::PrintStatus::FINISHED_ABORTED).

Note
when you enable print status tracking the print operation can be in a non-finished state even after done has been called, as the operation status then tracks the print job status on the printer.
Returns
true, if the print operation is finished.
virtual void Gtk::PrintOperation::on_begin_print ( const Glib::RefPtr< PrintContext >&  context)
protectedvirtual

This is a default handler for the signal signal_begin_print().

virtual Widget* Gtk::PrintOperation::on_create_custom_widget ( )
protectedvirtual

This is a default handler for the signal signal_create_custom_widget().

virtual void Gtk::PrintOperation::on_custom_widget_apply ( Widget widget)
protectedvirtual

This is a default handler for the signal signal_custom_widget_apply().

virtual void Gtk::PrintOperation::on_done ( Result  result)
protectedvirtual

This is a default handler for the signal signal_done().

virtual void Gtk::PrintOperation::on_draw_page ( const Glib::RefPtr< PrintContext >&  context,
int  page_nr 
)
protectedvirtual

This is a default handler for the signal signal_draw_page().

virtual void Gtk::PrintOperation::on_end_print ( const Glib::RefPtr< PrintContext >&  context)
protectedvirtual

This is a default handler for the signal signal_end_print().

virtual bool Gtk::PrintOperation::on_paginate ( const Glib::RefPtr< PrintContext >&  context)
protectedvirtual

This is a default handler for the signal signal_paginate().

virtual bool Gtk::PrintOperation::on_preview ( const Glib::RefPtr< PrintOperationPreview >&  preview,
const Glib::RefPtr< PrintContext >&  context,
Window parent 
)
protectedvirtual

This is a default handler for the signal signal_preview().

virtual void Gtk::PrintOperation::on_request_page_setup ( const Glib::RefPtr< PrintContext >&  context,
int  page_no,
const Glib::RefPtr< PageSetup >&  setup 
)
protectedvirtual

This is a default handler for the signal signal_request_page_setup().

virtual void Gtk::PrintOperation::on_status_changed ( )
protectedvirtual

This is a default handler for the signal signal_status_changed().

virtual void Gtk::PrintOperation::on_update_custom_widget ( Widget widget,
const Glib::RefPtr< PageSetup >&  setup,
const Glib::RefPtr< PrintSettings >&  settings 
)
protectedvirtual

This is a default handler for the signal signal_update_custom_widget().

PrintOperation& Gtk::PrintOperation::operator= ( PrintOperation&&  src)
noexcept
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_allow_async ( )

Determines whether the print operation may run asynchronously or not.

Some systems don't support asynchronous printing, but those that do will return Gtk::PrintOperation::Result::IN_PROGRESS as the status, and emit the Gtk::PrintOperation::signal_done() signal when the operation is actually done.

The Windows port does not support asynchronous operation at all (this is unlikely to change). On other platforms, all actions except for Gtk::PrintOperation::Action::EXPORT support asynchronous operation.

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_allow_async ( ) const

Determines whether the print operation may run asynchronously or not.

Some systems don't support asynchronous printing, but those that do will return Gtk::PrintOperation::Result::IN_PROGRESS as the status, and emit the Gtk::PrintOperation::signal_done() signal when the operation is actually done.

The Windows port does not support asynchronous operation at all (this is unlikely to change). On other platforms, all actions except for Gtk::PrintOperation::Action::EXPORT support asynchronous operation.

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< int > Gtk::PrintOperation::property_current_page ( )

The current page in the document.

If this is set before Gtk::PrintOperation::run(), the user will be able to select to print only the current page.

Note that this only makes sense for pre-paginated documents.

Default value: -1

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< int > Gtk::PrintOperation::property_current_page ( ) const

The current page in the document.

If this is set before Gtk::PrintOperation::run(), the user will be able to select to print only the current page.

Note that this only makes sense for pre-paginated documents.

Default value: -1

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::ustring > Gtk::PrintOperation::property_custom_tab_label ( )

Used as the label of the tab containing custom widgets.

Note that this property may be ignored on some platforms.

If this is nullptr, GTK uses a default label.

Default value: ""

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::ustring > Gtk::PrintOperation::property_custom_tab_label ( ) const

Used as the label of the tab containing custom widgets.

Note that this property may be ignored on some platforms.

If this is nullptr, GTK uses a default label.

Default value: ""

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::RefPtr<PageSetup> > Gtk::PrintOperation::property_default_page_setup ( )

The Gtk::PageSetup used by default.

This page setup will be used by Gtk::PrintOperation::run(), but it can be overridden on a per-page basis by connecting to the Gtk::PrintOperation::signal_request_page_setup() signal.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::RefPtr<PageSetup> > Gtk::PrintOperation::property_default_page_setup ( ) const

The Gtk::PageSetup used by default.

This page setup will be used by Gtk::PrintOperation::run(), but it can be overridden on a per-page basis by connecting to the Gtk::PrintOperation::signal_request_page_setup() signal.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_embed_page_setup ( )

If true, page size combo box and orientation combo box are embedded into page setup page.

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_embed_page_setup ( ) const

If true, page size combo box and orientation combo box are embedded into page setup page.

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< std::string > Gtk::PrintOperation::property_export_filename ( )

The name of a file to generate instead of showing the print dialog.

Currently, PDF is the only supported format.

The intended use of this property is for implementing “Export to PDF” actions.

“Print to PDF” support is independent of this and is done by letting the user pick the “Print to PDF” item from the list of printers in the print dialog.

Default value: ""

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< std::string > Gtk::PrintOperation::property_export_filename ( ) const

The name of a file to generate instead of showing the print dialog.

Currently, PDF is the only supported format.

The intended use of this property is for implementing “Export to PDF” actions.

“Print to PDF” support is independent of this and is done by letting the user pick the “Print to PDF” item from the list of printers in the print dialog.

Default value: ""

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_has_selection ( )

Determines whether there is a selection in your application.

This can allow your application to print the selection. This is typically used to make a "Selection" button sensitive.

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_has_selection ( ) const

Determines whether there is a selection in your application.

This can allow your application to print the selection. This is typically used to make a "Selection" button sensitive.

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::ustring > Gtk::PrintOperation::property_job_name ( )

A string used to identify the job (e.g. in monitoring applications like eggcups).

If you don't set a job name, GTK picks a default one by numbering successive print jobs.

Default value: ""

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::ustring > Gtk::PrintOperation::property_job_name ( ) const

A string used to identify the job (e.g. in monitoring applications like eggcups).

If you don't set a job name, GTK picks a default one by numbering successive print jobs.

Default value: ""

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< int > Gtk::PrintOperation::property_n_pages ( )

The number of pages in the document.

This must be set to a positive number before the rendering starts. It may be set in a Gtk::PrintOperation::signal_begin_print() signal handler.

Note that the page numbers passed to the Gtk::PrintOperation::signal_request_page_setup() and Gtk::PrintOperation::signal_draw_page() signals are 0-based, i.e. if the user chooses to print all pages, the last signal_draw_page() signal will be for page n_pages - 1.

Default value: -1

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< int > Gtk::PrintOperation::property_n_pages ( ) const

The number of pages in the document.

This must be set to a positive number before the rendering starts. It may be set in a Gtk::PrintOperation::signal_begin_print() signal handler.

Note that the page numbers passed to the Gtk::PrintOperation::signal_request_page_setup() and Gtk::PrintOperation::signal_draw_page() signals are 0-based, i.e. if the user chooses to print all pages, the last signal_draw_page() signal will be for page n_pages - 1.

Default value: -1

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< int > Gtk::PrintOperation::property_n_pages_to_print ( ) const

The number of pages that will be printed.

Note that this value is set during print preparation phase (Gtk::PrintStatus::PREPARING), so this value should never be get before the data generation phase (Gtk::PrintStatus::GENERATING_DATA). You can connect to the Gtk::PrintOperation::signal_status_changed() signal and call Gtk::PrintOperation::get_n_pages_to_print() when print status is Gtk::PrintStatus::GENERATING_DATA. This is typically used to track the progress of print operation.

Default value: -1

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::RefPtr<PrintSettings> > Gtk::PrintOperation::property_print_settings ( )

The Gtk::PrintSettings used for initializing the dialog.

Setting this property is typically used to re-establish print settings from a previous print operation, see Gtk::PrintOperation::run().

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::RefPtr<PrintSettings> > Gtk::PrintOperation::property_print_settings ( ) const

The Gtk::PrintSettings used for initializing the dialog.

Setting this property is typically used to re-establish print settings from a previous print operation, see Gtk::PrintOperation::run().

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_show_progress ( )

Determines whether to show a progress dialog during the print operation.

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_show_progress ( ) const

Determines whether to show a progress dialog during the print operation.

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< PrintStatus > Gtk::PrintOperation::property_status ( ) const

The status of the print operation.

Default value: Gtk::PrintStatus::INITIAL

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::ustring > Gtk::PrintOperation::property_status_string ( ) const

A string representation of the status of the print operation.

The string is translated and suitable for displaying the print status e.g. in a Gtk::Statusbar.

See the Gtk::PrintOperation::property_status() property for a status value that is suitable for programmatic use.

Default value: ""

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_support_selection ( )

If true, the print operation will support print of selection.

This allows the print dialog to show a "Selection" button.

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_support_selection ( ) const

If true, the print operation will support print of selection.

This allows the print dialog to show a "Selection" button.

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_track_print_status ( )

If true, the print operation will try to continue report on the status of the print job in the printer queues and printer.

This can allow your application to show things like “out of paper” issues, and when the print job actually reaches the printer. However, this is often implemented using polling, and should not be enabled unless needed.

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_track_print_status ( ) const

If true, the print operation will try to continue report on the status of the print job in the printer queues and printer.

This can allow your application to show things like “out of paper” issues, and when the print job actually reaches the printer. However, this is often implemented using polling, and should not be enabled unless needed.

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Unit > Gtk::PrintOperation::property_unit ( )

The transformation for the cairo context obtained from Gtk::PrintContext is set up in such a way that distances are measured in units of unit.

Default value: Gtk::Unit::NONE

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Unit > Gtk::PrintOperation::property_unit ( ) const

The transformation for the cairo context obtained from Gtk::PrintContext is set up in such a way that distances are measured in units of unit.

Default value: Gtk::Unit::NONE

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gtk::PrintOperation::property_use_full_page ( )

If true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet).

Otherwise, the origin is at the top left corner of the imageable area (i.e. inside the margins).

Default value: false

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gtk::PrintOperation::property_use_full_page ( ) const

If true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet).

Otherwise, the origin is at the top left corner of the imageable area (i.e. inside the margins).

Default value: false

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Result Gtk::PrintOperation::run ( Action  action = Action::PRINT_DIALOG)

See the run() method that takes both action and parent parameters.

Result Gtk::PrintOperation::run ( Action  action,
Window parent 
)

Runs the print operation, by first letting the user modify print settings in the print dialog, and then print the document.

Normally that this function does not return until the rendering of all pages is complete. You can connect to the Gtk::PrintOperation::signal_status_changed() signal on op to obtain some information about the progress of the print operation. Furthermore, it may use a recursive mainloop to show the print dialog.

If you call set_allow_async() or set the Gtk::PrintOperation::property_allow_async() property the operation will run asynchronously if this is supported on the platform. The Gtk::PrintOperation::signal_done() signal will be emitted with the result of the operation when the it is done (i.e. when the dialog is canceled, or when the print succeeds or fails).

[C example ellipted]

Note that run() can only be called once on a given Gtk::PrintOperation.

Parameters
actionThe action to start.
parentTransient parent of the dialog.
Returns
The result of the print operation. A return value of Gtk::PrintOperation::Result::APPLY indicates that the printing was completed successfully. In this case, it is a good idea to obtain the used print settings with get_print_settings() and store them for reuse with the next print operation. A value of Gtk::PrintOperation::Result::IN_PROGRESS means the operation is running asynchronously, and will emit the Gtk::PrintOperation::signal_done() signal when done.
Exceptions
Glib::Error
void Gtk::PrintOperation::set_allow_async ( bool  allow_async = true)

Sets whether the run() may return before the print operation is completed.

Note that some platforms may not allow asynchronous operation.

Parameters
allow_asynctrue to allow asynchronous operation.
void Gtk::PrintOperation::set_current_page ( int  current_page)

Sets the current page.

If this is called before run(), the user will be able to select to print only the current page.

Note that this only makes sense for pre-paginated documents.

Parameters
current_pageThe current page, 0-based.
void Gtk::PrintOperation::set_custom_tab_label ( const Glib::ustring label)

Sets the label for the tab holding custom widgets.

Parameters
labelThe label to use, or nullptr to use the default label.
void Gtk::PrintOperation::set_default_page_setup ( const Glib::RefPtr< PageSetup >&  default_page_setup)

Makes default_page_setup the default page setup for op.

This page setup will be used by run(), but it can be overridden on a per-page basis by connecting to the Gtk::PrintOperation::signal_request_page_setup() signal.

Parameters
default_page_setupA Gtk::PageSetup, or nullptr.
void Gtk::PrintOperation::set_defer_drawing ( )

Sets up the Gtk::PrintOperation to wait for calling of draw_page_finish() from application.

It can be used for drawing page in another thread.

This function must be called in the callback of “draw-page” signal.

void Gtk::PrintOperation::set_embed_page_setup ( bool  embed = true)

Embed page size combo box and orientation combo box into page setup page.

Selected page setup is stored as default page setup in Gtk::PrintOperation.

Parameters
embedtrue to embed page setup selection in the Gtk::PrintUnixDialog.
void Gtk::PrintOperation::set_export_filename ( const std::string filename)

Sets up the Gtk::PrintOperation to generate a file instead of showing the print dialog.

The intended use of this function is for implementing “Export to PDF” actions. Currently, PDF is the only supported format.

“Print to PDF” support is independent of this and is done by letting the user pick the “Print to PDF” item from the list of printers in the print dialog.

Parameters
filenameThe filename for the exported file.
void Gtk::PrintOperation::set_has_selection ( bool  has_selection = true)

Sets whether there is a selection to print.

Application has to set number of pages to which the selection will draw by set_n_pages() in a callback of Gtk::PrintOperation::signal_begin_print().

Parameters
has_selectiontrue indicates that a selection exists.
void Gtk::PrintOperation::set_job_name ( const Glib::ustring job_name)

Sets the name of the print job.

The name is used to identify the job (e.g. in monitoring applications like eggcups).

If you don’t set a job name, GTK picks a default one by numbering successive print jobs.

Parameters
job_nameA string that identifies the print job.
void Gtk::PrintOperation::set_n_pages ( int  n_pages)

Sets the number of pages in the document.

This must be set to a positive number before the rendering starts. It may be set in a Gtk::PrintOperation::signal_begin_print() signal handler.

Note that the page numbers passed to the Gtk::PrintOperation::signal_request_page_setup() and Gtk::PrintOperation::signal_draw_page() signals are 0-based, i.e. if the user chooses to print all pages, the last signal_draw_page() signal will be for page n_pages - 1.

Parameters
n_pagesThe number of pages.
void Gtk::PrintOperation::set_print_settings ( const Glib::RefPtr< PrintSettings >&  print_settings)

Sets the print settings for op.

This is typically used to re-establish print settings from a previous print operation, see run().

Parameters
print_settingsGtk::PrintSettings.
void Gtk::PrintOperation::set_show_progress ( bool  show_progress = true)

If show_progress is true, the print operation will show a progress dialog during the print operation.

Parameters
show_progresstrue to show a progress dialog.
void Gtk::PrintOperation::set_support_selection ( bool  support_selection = true)

Sets whether selection is supported by Gtk::PrintOperation.

Parameters
support_selectiontrue to support selection.
void Gtk::PrintOperation::set_track_print_status ( bool  track_status = true)

If track_status is true, the print operation will try to continue report on the status of the print job in the printer queues and printer.

This can allow your application to show things like “out of paper” issues, and when the print job actually reaches the printer.

This function is often implemented using some form of polling, so it should not be enabled unless needed.

Parameters
track_statustrue to track status after printing.
void Gtk::PrintOperation::set_unit ( Unit  unit)

Sets up the transformation for the cairo context obtained from Gtk::PrintContext in such a way that distances are measured in units of unit.

Parameters
unitThe unit to use.
void Gtk::PrintOperation::set_use_full_page ( bool  use_full_page = true)

If use_full_page is true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet).

Otherwise, the origin is at the top left corner of the imageable area (i.e. inside the margins).

Parameters
use_full_pagetrue to set up the Gtk::PrintContext for the full page.
Glib::SignalProxy<void(const Glib::RefPtr<PrintContext>&)> Gtk::PrintOperation::signal_begin_print ( )
Slot Prototype:
void on_my_begin_print(const Glib::RefPtr<PrintContext>& context)

Flags: Run Last

Emitted after the user has finished changing print settings in the dialog, before the actual rendering starts.

A typical use for signal_begin_print() is to use the parameters from the Gtk::PrintContext and paginate the document accordingly, and then set the number of pages with Gtk::PrintOperation::set_n_pages().

Parameters
contextThe Gtk::PrintContext for the current operation.
Glib::SignalProxy<Widget*()> Gtk::PrintOperation::signal_create_custom_widget ( )
Slot Prototype:
Widget* on_my_create_custom_widget()

Flags: Run Last

Emitted when displaying the print dialog. If you return a widget in a handler for this signal it will be added to a custom tab in the print dialog. You typically return a container widget with multiple widgets in it.

The print dialog owns the returned widget, and its lifetime is not controlled by the application. However, the widget is guaranteed to stay around until the Gtk::PrintOperation::signal_custom_widget_apply() signal is emitted on the operation. Then you can read out any information you need from the widgets.

Returns
A custom widget that gets embedded in the print dialog, or nullptr.
Glib::SignalProxy<void(Widget*)> Gtk::PrintOperation::signal_custom_widget_apply ( )
Slot Prototype:
void on_my_custom_widget_apply(Widget* widget)

Flags: Run Last

Emitted right before Gtk::PrintOperation::signal_begin_print() if you added a custom widget in the Gtk::PrintOperation::signal_create_custom_widget() handler. When you get this signal you should read the information from the custom widgets, as the widgets are not guaraneed to be around at a later time.

Parameters
widgetThe custom widget added in create-custom-widget.
Glib::SignalProxy<void(Result)> Gtk::PrintOperation::signal_done ( )
Slot Prototype:
void on_my_done(Result result)

Flags: Run Last

Emitted when the print operation run has finished doing everything required for printing.

result gives you information about what happened during the run. If result is Gtk::PrintOperation::Result::ERROR then you can call Gtk::PrintOperation::get_error() for more information.

If you enabled print status tracking then Gtk::PrintOperation::is_finished() may still return false after Gtk::PrintOperation::signal_done() was emitted.

Parameters
resultThe result of the print operation.
Glib::SignalProxy<void(const Glib::RefPtr<PrintContext>&, int)> Gtk::PrintOperation::signal_draw_page ( )
Slot Prototype:
void on_my_draw_page(const Glib::RefPtr<PrintContext>& context, int page_nr)

Flags: Run Last

Emitted for every page that is printed. The signal handler must render the page_nr's page onto the cairo context obtained from context using Gtk::PrintContext::get_cairo_context().

[C example ellipted]

Use Gtk::PrintOperation::set_use_full_page() and Gtk::PrintOperation::set_unit() before starting the print operation to set up the transformation of the cairo context according to your needs.

Parameters
contextThe Gtk::PrintContext for the current operation.
page_nrThe number of the currently printed page (0-based).
Glib::SignalProxy<void(const Glib::RefPtr<PrintContext>&)> Gtk::PrintOperation::signal_end_print ( )
Slot Prototype:
void on_my_end_print(const Glib::RefPtr<PrintContext>& context)

Flags: Run Last

Emitted after all pages have been rendered. A handler for this signal can clean up any resources that have been allocated in the Gtk::PrintOperation::signal_begin_print() handler.

Parameters
contextThe Gtk::PrintContext for the current operation.
Glib::SignalProxy<bool(const Glib::RefPtr<PrintContext>&)> Gtk::PrintOperation::signal_paginate ( )
Slot Prototype:
bool on_my_paginate(const Glib::RefPtr<PrintContext>& context)

Flags: Run Last

Emitted after the Gtk::PrintOperation::signal_begin_print() signal, but before the actual rendering starts. It keeps getting emitted until a connected signal handler returns true.

The signal_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::set_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 signal_begin_print() handler, and set the number of pages from there.

Parameters
contextThe Gtk::PrintContext for the current operation.
Returns
true if pagination is complete.
Glib::SignalProxy<bool(const Glib::RefPtr<PrintOperationPreview>&, const Glib::RefPtr<PrintContext>&, Window*)> Gtk::PrintOperation::signal_preview ( )
Slot Prototype:
bool on_my_preview(const Glib::RefPtr<PrintOperationPreview>& preview, const Glib::RefPtr<PrintContext>& context, Window* parent)

Flags: Run Last

Gets emitted when a preview is requested from the native dialog.

The default handler for this signal uses an external viewer application to preview.

To implement a custom print preview, an application must return true from its handler for this signal. In order to use the provided context for the preview implementation, it must be given a suitable cairo context with Gtk::PrintContext::set_cairo_context().

The custom preview implementation can use Gtk::PrintOperationPreview::is_selected() and Gtk::PrintOperationPreview::render_page() to find pages which are selected for print and render them. The preview must be finished by calling Gtk::PrintOperationPreview::end_preview() (typically in response to the user clicking a close button).

Parameters
previewThe Gtk::PrintOperationPreview for the current operation.
contextThe Gtk::PrintContext that will be used.
parentThe Gtk::Window to use as window parent, or nullptr.
Returns
true if the listener wants to take over control of the preview.
Glib::SignalProxy<void(const Glib::RefPtr<PrintContext>&, int, const Glib::RefPtr<PageSetup>&)> Gtk::PrintOperation::signal_request_page_setup ( )
Slot Prototype:
void on_my_request_page_setup(const Glib::RefPtr<PrintContext>& context, int page_no, const Glib::RefPtr<PageSetup>& setup)

Flags: Run Last

Emitted once for every page that is printed, to give the application a chance to modify the page setup. Any changes done to setup will be in force only for printing this page.

Parameters
contextThe Gtk::PrintContext for the current operation.
page_noThe number of the currently printed page (0-based).
setupThe Gtk::PageSetup.
Glib::SignalProxy<void()> Gtk::PrintOperation::signal_status_changed ( )
Slot Prototype:
void on_my_status_changed()

Flags: Run Last

Emitted at between the various phases of the print operation. See Gtk::PrintStatus for the phases that are being discriminated. Use Gtk::PrintOperation::get_status() to find out the current status.

Glib::SignalProxy<void(Widget*, const Glib::RefPtr<PageSetup>&, const Glib::RefPtr<PrintSettings>&)> Gtk::PrintOperation::signal_update_custom_widget ( )
Slot Prototype:
void on_my_update_custom_widget(Widget* widget, const Glib::RefPtr<PageSetup>& setup, const Glib::RefPtr<PrintSettings>& settings)

Flags: Run Last

Emitted after change of selected printer. The actual page setup and print settings are passed to the custom widget, which can actualize itself according to this change.

Parameters
widgetThe custom widget added in create-custom-widget.
setupActual page setup.
settingsActual print settings.

Friends And Related Function Documentation

Glib::RefPtr< Gtk::PrintOperation > wrap ( GtkPrintOperation *  object,
bool  take_copy = false 
)
related

A Glib::wrap() method for this object.

Parameters
objectThe C instance.
take_copyFalse if the result should take ownership of the C instance. True if it should take a new copy or ref.
Returns
A C++ instance that wraps this C instance.