PrintOperationPreview

class PrintOperationPreview(*args, **kwargs)

Implementations: PrintOperation

The interface that is used to implement print preview.

A GtkPrintOperationPreview object is passed to the preview signal by PrintOperation.

Methods

class PrintOperationPreview

end_preview() → None

Ends a preview.

This function must be called to finish a custom print preview.

is_selected(page_nr: int) → bool

Returns whether the given page is included in the set of pages that have been selected for printing.

Parameters:

page_nr – a page number

render_page(page_nr: int) → None

Renders a page to the preview.

This is using the print context that was passed to the preview handler together with preview.

A custom print preview should use this function to render the currently selected page.

Note that this function requires a suitable cairo context to be associated with the print context.

Parameters:

page_nr – the page to render

Signals

class PrintOperationPreview.signals

got_page_size(context: PrintContext, page_setup: PageSetup) → None

Emitted once for each page that gets rendered to the preview.

A handler for this signal should update the context according to page_setup and set up a suitable cairo context, using set_cairo_context.

Parameters:

• context – the current GtkPrintContext

• page_setup – the GtkPageSetup for the current page

ready(context: PrintContext) → None

The ::ready signal gets emitted once per preview operation, before the first page is rendered.

A handler for this signal can be used for setup tasks.

Parameters:

context – the current GtkPrintContext

Virtual Methods

class PrintOperationPreview

do_end_preview() → None

Ends a preview.

This function must be called to finish a custom print preview.

do_got_page_size(context: PrintContext, page_setup: PageSetup) → None

Parameters:

• context

• page_setup

do_is_selected(page_nr: int) → bool

Returns whether the given page is included in the set of pages that have been selected for printing.

Parameters:

page_nr – a page number

do_ready(context: PrintContext) → None

Parameters:

context

do_render_page(page_nr: int) → None

Renders a page to the preview.

This is using the print context that was passed to the preview handler together with preview.

A custom print preview should use this function to render the currently selected page.

Note that this function requires a suitable cairo context to be associated with the print context.

Parameters:

page_nr – the page to render