PrintOperation

gtk.print_operation.PrintOperation is the high-level, portable printing API.

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

The typical way to use the high-level printing API is to create a gtk.print_operation.PrintOperation object with gtk.print_operation.PrintOperation.new_ when the user selects to print. Then you set some properties on it, e.g. the page size, any gtk.print_settings.PrintSettings from previous print operations, the number of pages, the current page, etc.

Then you start the print operation by calling gtk.print_operation.PrintOperation.run. It will then show a dialog, let the user select a printer and options. When the user finished the dialog, various signals will be emitted on the gtk.print_operation.PrintOperation, the main one being signal@Gtk.PrintOperation::draw-page, which you are supposed to handle and render the page on the provided gtk.print_context.PrintContext using Cairo.

The high-level printing API

static GtkPrintSettings *settings = NULL;

static void
do_print (void)
{
  GtkPrintOperation *print;
  GtkPrintOperationResult res;

  print = gtk_print_operation_new ();

  if (settings != NULL)
    gtk_print_operation_set_print_settings (print, settings);

  g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), NULL);
  g_signal_connect (print, "draw_page", G_CALLBACK (draw_page), NULL);

  res = gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
                                 GTK_WINDOW (main_window), NULL);

  if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
    {
      if (settings != NULL)
        g_object_unref (settings);
      settings = g_object_ref (gtk_print_operation_get_print_settings (print));
    }

  g_object_unref (print);
}

By default gtk.print_operation.PrintOperation uses an external application to do print preview. To implement a custom print preview, an application must connect to the preview signal. The functions gtk.print_operation_preview.PrintOperationPreview.renderPage, gtk.print_operation_preview.PrintOperationPreview.endPreview and gtk.print_operation_preview.PrintOperationPreview.isSelected

are useful when implementing a print preview.

class PrintOperation : ObjectG , PrintOperationPreview {

this();

void cancel();

void drawPageFinish();

gtk.page_setup.PageSetup getDefaultPageSetup();

bool getEmbedPageSetup();

void getError();

bool getHasSelection();

int getNPagesToPrint();

gtk.print_settings.PrintSettings getPrintSettings();

gtk.types.PrintStatus getStatus();

string getStatusString();

bool getSupportSelection();

bool isFinished();

gtk.types.PrintOperationResult run(gtk.types.PrintOperationAction action, gtk.window.Window parent);

void setAllowAsync(bool allowAsync);

void setCurrentPage(int currentPage);

void setCustomTabLabel(string label);

void setDefaultPageSetup(gtk.page_setup.PageSetup defaultPageSetup);

void setDeferDrawing();

void setEmbedPageSetup(bool embed);

void setExportFilename(string filename);

void setHasSelection(bool hasSelection);

void setJobName(string jobName);

void setNPages(int nPages);

void setPrintSettings(gtk.print_settings.PrintSettings printSettings);

void setShowProgress(bool showProgress);

void setSupportSelection(bool supportSelection);

void setTrackPrintStatus(bool trackStatus);

void setUnit(gtk.types.Unit unit);

void setUseFullPage(bool fullPage);

ulong connectBeginPrint(T callback, Flag!"After" after);

ulong connectCreateCustomWidget(T callback, Flag!"After" after);

ulong connectCustomWidgetApply(T callback, Flag!"After" after);

ulong connectDone(T callback, Flag!"After" after);

ulong connectDrawPage(T callback, Flag!"After" after);

ulong connectEndPrint(T callback, Flag!"After" after);

ulong connectPaginate(T callback, Flag!"After" after);

ulong connectPreview(T callback, Flag!"After" after);

ulong connectRequestPageSetup(T callback, Flag!"After" after);

ulong connectStatusChanged(T callback, Flag!"After" after);

ulong connectUpdateCustomWidget(T callback, Flag!"After" after);

}

Constructors

this this(): Creates a new gtk.print_operation.PrintOperation.

Members

Functions

cancel void cancel(): Cancels a running print operation.
connectBeginPrint ulong connectBeginPrint(T callback, Flag!"After" after): Connect to BeginPrint signal.
connectCreateCustomWidget ulong connectCreateCustomWidget(T callback, Flag!"After" after): Connect to CreateCustomWidget signal.
connectCustomWidgetApply ulong connectCustomWidgetApply(T callback, Flag!"After" after): Connect to CustomWidgetApply signal.
connectDone ulong connectDone(T callback, Flag!"After" after): Connect to Done signal.
connectDrawPage ulong connectDrawPage(T callback, Flag!"After" after): Connect to DrawPage signal.
connectEndPrint ulong connectEndPrint(T callback, Flag!"After" after): Connect to EndPrint signal.
connectPaginate ulong connectPaginate(T callback, Flag!"After" after): Connect to Paginate signal.
connectPreview ulong connectPreview(T callback, Flag!"After" after): Connect to Preview signal.
connectRequestPageSetup ulong connectRequestPageSetup(T callback, Flag!"After" after): Connect to RequestPageSetup signal.
connectStatusChanged ulong connectStatusChanged(T callback, Flag!"After" after): Connect to StatusChanged signal.
connectUpdateCustomWidget ulong connectUpdateCustomWidget(T callback, Flag!"After" after): Connect to UpdateCustomWidget signal.
drawPageFinish void drawPageFinish(): Signal that drawing of particular page is complete.
getDefaultPageSetup gtk.page_setup.PageSetup getDefaultPageSetup(): Returns the default page setup.
getEmbedPageSetup bool getEmbedPageSetup(): Gets whether page setup selection combos are embedded
getError void getError(): Call this when the result of a print operation is gtk.types.PrintOperationResult.Error.
getHasSelection bool getHasSelection(): Gets whether there is a selection.
getNPagesToPrint int getNPagesToPrint(): Returns the number of pages that will be printed.
getPrintSettings gtk.print_settings.PrintSettings getPrintSettings(): Returns the current print settings.
getStatus gtk.types.PrintStatus getStatus(): Returns the status of the print operation.
getStatusString string getStatusString(): Returns a string representation of the status of the print operation.
getSupportSelection bool getSupportSelection(): Gets whether the application supports print of selection
isFinished bool isFinished(): A convenience function to find out if the print operation is finished.
run gtk.types.PrintOperationResult run(gtk.types.PrintOperationAction action, gtk.window.Window parent): Runs the print operation.
setAllowAsync void setAllowAsync(bool allowAsync): Sets whether gtk.print_operation.PrintOperation.run may return before the print operation is completed.
setCurrentPage void setCurrentPage(int currentPage): Sets the current page.
setCustomTabLabel void setCustomTabLabel(string label): Sets the label for the tab holding custom widgets.
setDefaultPageSetup void setDefaultPageSetup(gtk.page_setup.PageSetup defaultPageSetup): Makes default_page_setup the default page setup for op.
setDeferDrawing void setDeferDrawing(): Sets up the gtk.print_operation.PrintOperation to wait for calling of [methodGtk.PrintOperation.draw_page_finish from application.
setEmbedPageSetup void setEmbedPageSetup(bool embed): Embed page size combo box and orientation combo box into page setup page.
setExportFilename void setExportFilename(string filename): Sets up the gtk.print_operation.PrintOperation to generate a file instead of showing the print dialog.
setHasSelection void setHasSelection(bool hasSelection): Sets whether there is a selection to print.
setJobName void setJobName(string jobName): Sets the name of the print job.
setNPages void setNPages(int nPages): Sets the number of pages in the document.
setPrintSettings void setPrintSettings(gtk.print_settings.PrintSettings printSettings): Sets the print settings for op.
setShowProgress void setShowProgress(bool showProgress): If show_progress is true, the print operation will show a progress dialog during the print operation.
setSupportSelection void setSupportSelection(bool supportSelection): Sets whether selection is supported by gtk.print_operation.PrintOperation.
setTrackPrintStatus void setTrackPrintStatus(bool trackStatus): 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.
setUnit void setUnit(gtk.types.Unit unit): Sets up the transformation for the cairo context obtained from gtk.print_context.PrintContext in such a way that distances are measured in units of unit.
setUseFullPage void setUseFullPage(bool fullPage): If full_page is true, the transformation for the cairo context obtained from gtk.print_context.PrintContext puts the origin at the top left corner of the page.

Mixed In Members

From `mixin PrintOperationPreviewT!()`

endPreview void endPreview(): Ends a preview.
isSelected bool isSelected(int pageNr): Returns whether the given page is included in the set of pages that have been selected for printing.
renderPage void renderPage(int pageNr): Renders a page to the preview.
connectGotPageSize ulong connectGotPageSize(T callback, Flag!"After" after): Connect to GotPageSize signal.
connectReady ulong connectReady(T callback, Flag!"After" after): Connect to Ready signal.

Inherited Members

From ObjectG

setGObject void setGObject(void* cObj, Flag!"Take" take): Set the GObject of a D ObjectG wrapper.
cPtr void* cPtr(Flag!"Dup" dup): Get a pointer to the underlying C object.
ref_ void* ref_(void* gObj): Calls g_object_ref() on a GObject.
unref unref(void* gObj): Calls g_object_unref() on a GObject.
getType GType getType(): Get the GType of an object.
gType GType gType [@property getter]: GObject GType property.
self ObjectG self(): Convenience method to return this cast to a type. For use in D with statements.
getDObject T getDObject(void* cptr, Flag!"Take" take): Template to get the D object from a C GObject and cast it to the given D object type.
connectSignalClosure ulong connectSignalClosure(string signalDetail, DClosure closure, Flag!"After" after): Connect a D closure to an object signal.
setProperty void setProperty(string propertyName, T val): Template for setting a GObject property.
getProperty T getProperty(string propertyName): Template for getting a GObject property.
compatControl size_t compatControl(size_t what, void* data)
bindProperty gobject.binding.Binding bindProperty(string sourceProperty, gobject.object.ObjectG target, string targetProperty, gobject.types.BindingFlags flags): Creates a binding between source_property on source and target_property on target.
bindPropertyFull gobject.binding.Binding bindPropertyFull(string sourceProperty, gobject.object.ObjectG target, string targetProperty, gobject.types.BindingFlags flags, gobject.closure.Closure transformTo, gobject.closure.Closure transformFrom): Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.
forceFloating void forceFloating(): This function is intended for #GObject implementations to re-enforce a floating[floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling gobject.object.ObjectG.refSink.
freezeNotify void freezeNotify(): Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one #GObject::notify signal is emitted for each property modified while the object is frozen.
getData void* getData(string key): Gets a named field from the objects table of associations (see gobject.object.ObjectG.setData).
getProperty void getProperty(string propertyName, gobject.value.Value value): Gets a property of an object.
getQdata void* getQdata(glib.types.Quark quark): This function gets back user data pointers stored via gobject.object.ObjectG.setQdata.
getv void getv(string[] names, gobject.value.Value[] values): Gets n_properties properties for an object. Obtained properties will be set to values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.
isFloating bool isFloating(): Checks whether object has a floating[floating-ref] reference.
notify void notify(string propertyName): Emits a "notify" signal for the property property_name on object.
notifyByPspec void notifyByPspec(gobject.param_spec.ParamSpec pspec): Emits a "notify" signal for the property specified by pspec on object.
refSink gobject.object.ObjectG refSink(): Increase the reference count of object, and possibly remove the floating[floating-ref] reference, if object has a floating reference.
runDispose void runDispose(): Releases all references to other objects. This can be used to break reference cycles.
setData void setData(string key, void* data): Each object carries around a table of associations from strings to pointers. This function lets you set an association.
setProperty void setProperty(string propertyName, gobject.value.Value value): Sets a property on an object.
stealData void* stealData(string key): Remove a specified datum from the object's data associations, without invoking the association's destroy handler.
stealQdata void* stealQdata(glib.types.Quark quark): This function gets back user data pointers stored via gobject.object.ObjectG.setQdata and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier, for example:
thawNotify void thawNotify(): Reverts the effect of a previous call to gobject.object.ObjectG.freezeNotify. The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted.
watchClosure void watchClosure(gobject.closure.Closure closure): This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling gobject.closure.Closure.invalidate on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, gobject.object.ObjectG.ref_ and gobject.object.ObjectG.unref are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.
connectNotify ulong connectNotify(string detail, T callback, Flag!"After" after): Connect to Notify signal.

From PrintOperationPreview

endPreview void endPreview(): Ends a preview.
isSelected bool isSelected(int pageNr): Returns whether the given page is included in the set of pages that have been selected for printing.
renderPage void renderPage(int pageNr): Renders a page to the preview.
connectGotPageSize ulong connectGotPageSize(T callback, Flag!"After" after): Connect to GotPageSize signal.
connectReady ulong connectReady(T callback, Flag!"After" after): Connect to Ready signal.

gtk print_operation classes

PrintOperation