forked from AuroraMiddleware/gtk
3260 lines
99 KiB
C
3260 lines
99 KiB
C
/* GTK - The GIMP Toolkit
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* gtkprintoperation.c: Print Operation
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* Copyright (C) 2006, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include <cairo-pdf.h>
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#include "gtkprintoperation-private.h"
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#include "gtkmarshalers.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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#include "gtkmessagedialog.h"
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#include "gtkwindowgroup.h"
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#include "gtktypebuiltins.h"
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/**
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* SECTION:gtkprintoperation
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* @Title: GtkPrintOperation
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* @Short_description: High-level Printing API
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* @See_also: #GtkPrintContext, #GtkPrintUnixDialog
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*
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* GtkPrintOperation is the high-level, portable printing API.
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* It looks a bit different than other GTK+ dialogs such as the
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* #GtkFileChooser, since some platforms don’t expose enough
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* infrastructure to implement a good print dialog. On such
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* platforms, GtkPrintOperation uses the native print dialog.
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* On platforms which do not provide a native print dialog, GTK+
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* uses its own, see #GtkPrintUnixDialog.
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*
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* The typical way to use the high-level printing API is to create
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* a GtkPrintOperation object with gtk_print_operation_new() when
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* the user selects to print. Then you set some properties on it,
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* e.g. the page size, any #GtkPrintSettings from previous print
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* operations, the number of pages, the current page, etc.
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*
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* Then you start the print operation by calling gtk_print_operation_run().
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* It will then show a dialog, let the user select a printer and
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* options. When the user finished the dialog various signals will
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* be emitted on the #GtkPrintOperation, the main one being
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* #GtkPrintOperation::draw-page, which you are supposed to catch
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* and render the page on the provided #GtkPrintContext using Cairo.
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*
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* # The high-level printing API
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*
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* |[<!-- language="C" -->
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* static GtkPrintSettings *settings = NULL;
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*
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* static void
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* do_print (void)
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* {
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* GtkPrintOperation *print;
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* GtkPrintOperationResult res;
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*
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* print = gtk_print_operation_new ();
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*
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* if (settings != NULL)
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* gtk_print_operation_set_print_settings (print, settings);
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*
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* g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), NULL);
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* g_signal_connect (print, "draw_page", G_CALLBACK (draw_page), NULL);
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*
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* res = gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
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* GTK_WINDOW (main_window), NULL);
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*
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* if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
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* {
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* if (settings != NULL)
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* g_object_unref (settings);
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* settings = g_object_ref (gtk_print_operation_get_print_settings (print));
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* }
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*
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* g_object_unref (print);
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* }
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* ]|
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*
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* By default GtkPrintOperation uses an external application to do
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* print preview. To implement a custom print preview, an application
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* must connect to the preview signal. The functions
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* gtk_print_operation_preview_render_page(),
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* gtk_print_operation_preview_end_preview() and
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* gtk_print_operation_preview_is_selected()
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* are useful when implementing a print preview.
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*/
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#define SHOW_PROGRESS_TIME 1200
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enum
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{
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DONE,
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BEGIN_PRINT,
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PAGINATE,
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REQUEST_PAGE_SETUP,
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DRAW_PAGE,
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END_PRINT,
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STATUS_CHANGED,
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CREATE_CUSTOM_WIDGET,
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CUSTOM_WIDGET_APPLY,
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PREVIEW,
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UPDATE_CUSTOM_WIDGET,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_DEFAULT_PAGE_SETUP,
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PROP_PRINT_SETTINGS,
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PROP_JOB_NAME,
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PROP_N_PAGES,
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PROP_CURRENT_PAGE,
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PROP_USE_FULL_PAGE,
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PROP_TRACK_PRINT_STATUS,
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PROP_UNIT,
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PROP_SHOW_PROGRESS,
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PROP_ALLOW_ASYNC,
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PROP_EXPORT_FILENAME,
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PROP_STATUS,
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PROP_STATUS_STRING,
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PROP_CUSTOM_TAB_LABEL,
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PROP_EMBED_PAGE_SETUP,
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PROP_HAS_SELECTION,
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PROP_SUPPORT_SELECTION,
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PROP_N_PAGES_TO_PRINT
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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static int job_nr = 0;
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typedef struct _PrintPagesData PrintPagesData;
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static void preview_iface_init (GtkPrintOperationPreviewIface *iface);
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static GtkPageSetup *create_page_setup (GtkPrintOperation *op);
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static void common_render_page (GtkPrintOperation *op,
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int page_nr);
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static void increment_page_sequence (PrintPagesData *data);
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static void prepare_data (PrintPagesData *data);
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static void clamp_page_ranges (PrintPagesData *data);
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G_DEFINE_TYPE_WITH_CODE (GtkPrintOperation, gtk_print_operation, G_TYPE_OBJECT,
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G_ADD_PRIVATE (GtkPrintOperation)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_PRINT_OPERATION_PREVIEW,
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preview_iface_init))
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/**
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* gtk_print_error_quark:
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*
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* Registers an error quark for #GtkPrintOperation if necessary.
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*
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* Returns: The error quark used for #GtkPrintOperation errors.
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**/
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GQuark
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gtk_print_error_quark (void)
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{
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static GQuark quark = 0;
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if (quark == 0)
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quark = g_quark_from_static_string ("gtk-print-error-quark");
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return quark;
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}
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static void
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gtk_print_operation_finalize (GObject *object)
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{
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GtkPrintOperation *op = GTK_PRINT_OPERATION (object);
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GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
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if (priv->free_platform_data &&
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priv->platform_data)
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{
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priv->free_platform_data (priv->platform_data);
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priv->free_platform_data = NULL;
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}
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if (priv->default_page_setup)
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g_object_unref (priv->default_page_setup);
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if (priv->print_settings)
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g_object_unref (priv->print_settings);
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if (priv->print_context)
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g_object_unref (priv->print_context);
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g_free (priv->export_filename);
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g_free (priv->job_name);
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g_free (priv->custom_tab_label);
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g_free (priv->status_string);
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if (priv->print_pages_idle_id > 0)
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g_source_remove (priv->print_pages_idle_id);
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if (priv->show_progress_timeout_id > 0)
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g_source_remove (priv->show_progress_timeout_id);
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if (priv->error)
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g_error_free (priv->error);
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G_OBJECT_CLASS (gtk_print_operation_parent_class)->finalize (object);
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}
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static void
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gtk_print_operation_init (GtkPrintOperation *operation)
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{
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GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (operation);
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const char *appname;
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priv->status = GTK_PRINT_STATUS_INITIAL;
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priv->status_string = g_strdup ("");
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priv->default_page_setup = NULL;
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priv->print_settings = NULL;
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priv->nr_of_pages = -1;
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priv->nr_of_pages_to_print = -1;
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priv->page_position = -1;
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priv->current_page = -1;
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priv->use_full_page = FALSE;
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priv->show_progress = FALSE;
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priv->export_filename = NULL;
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priv->track_print_status = FALSE;
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priv->is_sync = FALSE;
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priv->support_selection = FALSE;
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priv->has_selection = FALSE;
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priv->embed_page_setup = FALSE;
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priv->page_drawing_state = GTK_PAGE_DRAWING_STATE_READY;
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priv->rloop = NULL;
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priv->unit = GTK_UNIT_NONE;
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appname = g_get_application_name ();
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if (appname == NULL)
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appname = "";
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/* translators: this string is the default job title for print
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* jobs. %s gets replaced by the application name, %d gets replaced
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* by the job number.
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*/
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priv->job_name = g_strdup_printf (_("%s job #%d"), appname, ++job_nr);
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operation->priv = priv;
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}
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static void
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preview_iface_render_page (GtkPrintOperationPreview *preview,
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int page_nr)
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{
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GtkPrintOperation *op;
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op = GTK_PRINT_OPERATION (preview);
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common_render_page (op, page_nr);
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}
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static void
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preview_iface_end_preview (GtkPrintOperationPreview *preview)
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{
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GtkPrintOperation *op;
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GtkPrintOperationResult result;
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op = GTK_PRINT_OPERATION (preview);
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g_signal_emit (op, signals[END_PRINT], 0, op->priv->print_context);
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if (op->priv->rloop)
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g_main_loop_quit (op->priv->rloop);
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if (op->priv->end_run)
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op->priv->end_run (op, op->priv->is_sync, TRUE);
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_gtk_print_operation_set_status (op, GTK_PRINT_STATUS_FINISHED, NULL);
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if (op->priv->error)
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result = GTK_PRINT_OPERATION_RESULT_ERROR;
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else if (op->priv->cancelled)
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result = GTK_PRINT_OPERATION_RESULT_CANCEL;
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else
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result = GTK_PRINT_OPERATION_RESULT_APPLY;
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g_signal_emit (op, signals[DONE], 0, result);
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}
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static gboolean
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preview_iface_is_selected (GtkPrintOperationPreview *preview,
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int page_nr)
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{
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GtkPrintOperation *op = GTK_PRINT_OPERATION (preview);
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GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
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int i;
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switch (priv->print_pages)
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{
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case GTK_PRINT_PAGES_SELECTION:
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case GTK_PRINT_PAGES_ALL:
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return (page_nr >= 0) && (page_nr < priv->nr_of_pages);
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case GTK_PRINT_PAGES_CURRENT:
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return page_nr == priv->current_page;
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case GTK_PRINT_PAGES_RANGES:
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for (i = 0; i < priv->num_page_ranges; i++)
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{
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if (page_nr >= priv->page_ranges[i].start &&
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(page_nr <= priv->page_ranges[i].end || priv->page_ranges[i].end == -1))
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return TRUE;
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}
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return FALSE;
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default:
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return FALSE;
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}
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}
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static void
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preview_iface_init (GtkPrintOperationPreviewIface *iface)
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{
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iface->render_page = preview_iface_render_page;
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iface->end_preview = preview_iface_end_preview;
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iface->is_selected = preview_iface_is_selected;
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}
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static void
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preview_start_page (GtkPrintOperation *op,
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GtkPrintContext *print_context,
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GtkPageSetup *page_setup)
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{
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if ((op->priv->manual_number_up < 2) ||
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(op->priv->page_position % op->priv->manual_number_up == 0))
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g_signal_emit_by_name (op, "got-page-size", print_context, page_setup);
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}
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static void
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preview_end_page (GtkPrintOperation *op,
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GtkPrintContext *print_context)
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{
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cairo_t *cr;
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cr = gtk_print_context_get_cairo_context (print_context);
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if ((op->priv->manual_number_up < 2) ||
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((op->priv->page_position + 1) % op->priv->manual_number_up == 0) ||
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(op->priv->page_position == op->priv->nr_of_pages_to_print - 1))
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cairo_show_page (cr);
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}
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static void
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preview_end_run (GtkPrintOperation *op,
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gboolean wait,
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gboolean cancelled)
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{
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g_free (op->priv->page_ranges);
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op->priv->page_ranges = NULL;
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}
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static void
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gtk_print_operation_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkPrintOperation *op = GTK_PRINT_OPERATION (object);
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switch (prop_id)
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{
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case PROP_DEFAULT_PAGE_SETUP:
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gtk_print_operation_set_default_page_setup (op, g_value_get_object (value));
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break;
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case PROP_PRINT_SETTINGS:
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gtk_print_operation_set_print_settings (op, g_value_get_object (value));
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break;
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case PROP_JOB_NAME:
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gtk_print_operation_set_job_name (op, g_value_get_string (value));
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break;
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case PROP_N_PAGES:
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gtk_print_operation_set_n_pages (op, g_value_get_int (value));
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break;
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case PROP_CURRENT_PAGE:
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gtk_print_operation_set_current_page (op, g_value_get_int (value));
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break;
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case PROP_USE_FULL_PAGE:
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gtk_print_operation_set_use_full_page (op, g_value_get_boolean (value));
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break;
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case PROP_TRACK_PRINT_STATUS:
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gtk_print_operation_set_track_print_status (op, g_value_get_boolean (value));
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break;
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case PROP_UNIT:
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gtk_print_operation_set_unit (op, g_value_get_enum (value));
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break;
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case PROP_ALLOW_ASYNC:
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gtk_print_operation_set_allow_async (op, g_value_get_boolean (value));
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break;
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case PROP_SHOW_PROGRESS:
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gtk_print_operation_set_show_progress (op, g_value_get_boolean (value));
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break;
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case PROP_EXPORT_FILENAME:
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gtk_print_operation_set_export_filename (op, g_value_get_string (value));
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break;
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case PROP_CUSTOM_TAB_LABEL:
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gtk_print_operation_set_custom_tab_label (op, g_value_get_string (value));
|
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break;
|
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case PROP_EMBED_PAGE_SETUP:
|
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gtk_print_operation_set_embed_page_setup (op, g_value_get_boolean (value));
|
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break;
|
||
case PROP_HAS_SELECTION:
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gtk_print_operation_set_has_selection (op, g_value_get_boolean (value));
|
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break;
|
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case PROP_SUPPORT_SELECTION:
|
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gtk_print_operation_set_support_selection (op, g_value_get_boolean (value));
|
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break;
|
||
default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
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break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_print_operation_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkPrintOperation *op = GTK_PRINT_OPERATION (object);
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_DEFAULT_PAGE_SETUP:
|
||
g_value_set_object (value, priv->default_page_setup);
|
||
break;
|
||
case PROP_PRINT_SETTINGS:
|
||
g_value_set_object (value, priv->print_settings);
|
||
break;
|
||
case PROP_JOB_NAME:
|
||
g_value_set_string (value, priv->job_name);
|
||
break;
|
||
case PROP_N_PAGES:
|
||
g_value_set_int (value, priv->nr_of_pages);
|
||
break;
|
||
case PROP_CURRENT_PAGE:
|
||
g_value_set_int (value, priv->current_page);
|
||
break;
|
||
case PROP_USE_FULL_PAGE:
|
||
g_value_set_boolean (value, priv->use_full_page);
|
||
break;
|
||
case PROP_TRACK_PRINT_STATUS:
|
||
g_value_set_boolean (value, priv->track_print_status);
|
||
break;
|
||
case PROP_UNIT:
|
||
g_value_set_enum (value, priv->unit);
|
||
break;
|
||
case PROP_ALLOW_ASYNC:
|
||
g_value_set_boolean (value, priv->allow_async);
|
||
break;
|
||
case PROP_SHOW_PROGRESS:
|
||
g_value_set_boolean (value, priv->show_progress);
|
||
break;
|
||
case PROP_EXPORT_FILENAME:
|
||
g_value_set_string (value, priv->export_filename);
|
||
break;
|
||
case PROP_STATUS:
|
||
g_value_set_enum (value, priv->status);
|
||
break;
|
||
case PROP_STATUS_STRING:
|
||
g_value_set_string (value, priv->status_string);
|
||
break;
|
||
case PROP_CUSTOM_TAB_LABEL:
|
||
g_value_set_string (value, priv->custom_tab_label);
|
||
break;
|
||
case PROP_EMBED_PAGE_SETUP:
|
||
g_value_set_boolean (value, priv->embed_page_setup);
|
||
break;
|
||
case PROP_HAS_SELECTION:
|
||
g_value_set_boolean (value, priv->has_selection);
|
||
break;
|
||
case PROP_SUPPORT_SELECTION:
|
||
g_value_set_boolean (value, priv->support_selection);
|
||
break;
|
||
case PROP_N_PAGES_TO_PRINT:
|
||
g_value_set_int (value, priv->nr_of_pages_to_print);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
struct _PrintPagesData
|
||
{
|
||
GtkPrintOperation *op;
|
||
int uncollated_copies;
|
||
int collated_copies;
|
||
int uncollated, collated, total;
|
||
|
||
int range, num_ranges;
|
||
GtkPageRange *ranges;
|
||
GtkPageRange one_range;
|
||
|
||
int page;
|
||
int sheet;
|
||
int first_position, last_position;
|
||
int first_sheet;
|
||
int num_of_sheets;
|
||
int *pages;
|
||
|
||
GtkWidget *progress;
|
||
|
||
gboolean initialized;
|
||
gboolean is_preview;
|
||
gboolean done;
|
||
};
|
||
|
||
typedef struct
|
||
{
|
||
GtkPrintOperationPreview *preview;
|
||
GtkPrintContext *print_context;
|
||
GtkWindow *parent;
|
||
cairo_surface_t *surface;
|
||
char *filename;
|
||
gboolean wait;
|
||
PrintPagesData *pages_data;
|
||
} PreviewOp;
|
||
|
||
static void
|
||
preview_print_idle_done (gpointer data)
|
||
{
|
||
GtkPrintOperation *op;
|
||
PreviewOp *pop = (PreviewOp *) data;
|
||
|
||
op = GTK_PRINT_OPERATION (pop->preview);
|
||
|
||
cairo_surface_finish (pop->surface);
|
||
|
||
if (op->priv->status == GTK_PRINT_STATUS_FINISHED_ABORTED)
|
||
{
|
||
cairo_surface_destroy (pop->surface);
|
||
}
|
||
else
|
||
{
|
||
/* Surface is destroyed in launch_preview */
|
||
_gtk_print_operation_platform_backend_launch_preview (op,
|
||
pop->surface,
|
||
pop->parent,
|
||
pop->filename);
|
||
}
|
||
|
||
g_free (pop->filename);
|
||
|
||
gtk_print_operation_preview_end_preview (pop->preview);
|
||
|
||
g_object_unref (pop->pages_data->op);
|
||
g_free (pop->pages_data->pages);
|
||
g_free (pop->pages_data);
|
||
|
||
g_object_unref (op);
|
||
g_free (pop);
|
||
}
|
||
|
||
static gboolean
|
||
preview_print_idle (gpointer data)
|
||
{
|
||
PreviewOp *pop = (PreviewOp *) data;
|
||
GtkPrintOperation *op = GTK_PRINT_OPERATION (pop->preview);
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
gboolean done = FALSE;
|
||
|
||
if (priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_READY)
|
||
{
|
||
if (priv->cancelled)
|
||
{
|
||
done = TRUE;
|
||
_gtk_print_operation_set_status (op, GTK_PRINT_STATUS_FINISHED_ABORTED, NULL);
|
||
}
|
||
else if (!pop->pages_data->initialized)
|
||
{
|
||
pop->pages_data->initialized = TRUE;
|
||
prepare_data (pop->pages_data);
|
||
}
|
||
else
|
||
{
|
||
increment_page_sequence (pop->pages_data);
|
||
|
||
if (!pop->pages_data->done)
|
||
gtk_print_operation_preview_render_page (pop->preview, pop->pages_data->page);
|
||
else
|
||
done = priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_READY;
|
||
}
|
||
}
|
||
|
||
return !done;
|
||
}
|
||
|
||
static void
|
||
preview_got_page_size (GtkPrintOperationPreview *preview,
|
||
GtkPrintContext *context,
|
||
GtkPageSetup *page_setup,
|
||
PreviewOp *pop)
|
||
{
|
||
GtkPrintOperation *op = GTK_PRINT_OPERATION (preview);
|
||
cairo_t *cr;
|
||
|
||
_gtk_print_operation_platform_backend_resize_preview_surface (op, page_setup, pop->surface);
|
||
|
||
cr = gtk_print_context_get_cairo_context (pop->print_context);
|
||
_gtk_print_operation_platform_backend_preview_start_page (op, pop->surface, cr);
|
||
|
||
}
|
||
|
||
static void
|
||
preview_ready (GtkPrintOperationPreview *preview,
|
||
GtkPrintContext *context,
|
||
PreviewOp *pop)
|
||
{
|
||
guint id;
|
||
|
||
pop->print_context = context;
|
||
|
||
g_object_ref (preview);
|
||
|
||
id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE + 10,
|
||
preview_print_idle,
|
||
pop,
|
||
preview_print_idle_done);
|
||
g_source_set_name_by_id (id, "[gtk] preview_print_idle");
|
||
}
|
||
|
||
|
||
static gboolean
|
||
gtk_print_operation_preview_handler (GtkPrintOperation *op,
|
||
GtkPrintOperationPreview *preview,
|
||
GtkPrintContext *context,
|
||
GtkWindow *parent)
|
||
{
|
||
double dpi_x, dpi_y;
|
||
PreviewOp *pop;
|
||
GtkPageSetup *page_setup;
|
||
cairo_t *cr;
|
||
|
||
pop = g_new0 (PreviewOp, 1);
|
||
pop->filename = NULL;
|
||
pop->preview = preview;
|
||
pop->parent = parent;
|
||
pop->pages_data = g_new0 (PrintPagesData, 1);
|
||
pop->pages_data->op = g_object_ref (GTK_PRINT_OPERATION (preview));
|
||
pop->pages_data->is_preview = TRUE;
|
||
|
||
page_setup = gtk_print_context_get_page_setup (context);
|
||
|
||
pop->surface =
|
||
_gtk_print_operation_platform_backend_create_preview_surface (op,
|
||
page_setup,
|
||
&dpi_x, &dpi_y,
|
||
&pop->filename);
|
||
|
||
if (pop->surface == NULL)
|
||
{
|
||
g_free (pop);
|
||
return FALSE;
|
||
}
|
||
|
||
cr = cairo_create (pop->surface);
|
||
gtk_print_context_set_cairo_context (op->priv->print_context, cr,
|
||
dpi_x, dpi_y);
|
||
cairo_destroy (cr);
|
||
|
||
g_signal_connect (preview, "ready", (GCallback) preview_ready, pop);
|
||
g_signal_connect (preview, "got-page-size", (GCallback) preview_got_page_size, pop);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GtkWidget *
|
||
gtk_print_operation_create_custom_widget (GtkPrintOperation *operation)
|
||
{
|
||
return NULL;
|
||
}
|
||
|
||
static gboolean
|
||
gtk_print_operation_paginate (GtkPrintOperation *operation,
|
||
GtkPrintContext *context)
|
||
{
|
||
/* assume the number of pages is already set and pagination is not needed */
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
gtk_print_operation_done (GtkPrintOperation *operation,
|
||
GtkPrintOperationResult result)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (operation);
|
||
|
||
if (priv->print_context)
|
||
{
|
||
g_object_unref (priv->print_context);
|
||
priv->print_context = NULL;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
custom_widget_accumulator (GSignalInvocationHint *ihint,
|
||
GValue *return_accu,
|
||
const GValue *handler_return,
|
||
gpointer dummy)
|
||
{
|
||
gboolean continue_emission;
|
||
GtkWidget *widget;
|
||
|
||
widget = g_value_get_object (handler_return);
|
||
if (widget != NULL)
|
||
g_value_set_object (return_accu, widget);
|
||
continue_emission = (widget == NULL);
|
||
|
||
return continue_emission;
|
||
}
|
||
|
||
static gboolean
|
||
paginate_accumulator (GSignalInvocationHint *ihint,
|
||
GValue *return_accu,
|
||
const GValue *handler_return,
|
||
gpointer dummy)
|
||
{
|
||
*return_accu = *handler_return;
|
||
|
||
/* Stop signal emission on first invocation, so if it's a callback then
|
||
* the default handler won't run. */
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_print_operation_class_init (GtkPrintOperationClass *class)
|
||
{
|
||
GObjectClass *gobject_class = (GObjectClass *)class;
|
||
|
||
gobject_class->set_property = gtk_print_operation_set_property;
|
||
gobject_class->get_property = gtk_print_operation_get_property;
|
||
gobject_class->finalize = gtk_print_operation_finalize;
|
||
|
||
class->preview = gtk_print_operation_preview_handler;
|
||
class->create_custom_widget = gtk_print_operation_create_custom_widget;
|
||
class->paginate = gtk_print_operation_paginate;
|
||
class->done = gtk_print_operation_done;
|
||
|
||
/**
|
||
* GtkPrintOperation::done:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @result: the result of the print operation
|
||
*
|
||
* 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_PRINT_OPERATION_RESULT_ERROR then you can call
|
||
* gtk_print_operation_get_error() for more information.
|
||
*
|
||
* If you enabled print status tracking then
|
||
* gtk_print_operation_is_finished() may still return %FALSE
|
||
* after #GtkPrintOperation::done was emitted.
|
||
*/
|
||
signals[DONE] =
|
||
g_signal_new (I_("done"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, done),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 1, GTK_TYPE_PRINT_OPERATION_RESULT);
|
||
|
||
/**
|
||
* GtkPrintOperation::begin-print:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @context: the #GtkPrintContext for the current operation
|
||
*
|
||
* Emitted after the user has finished changing print settings
|
||
* in the dialog, before the actual rendering starts.
|
||
*
|
||
* A typical use for ::begin-print is to use the parameters from the
|
||
* #GtkPrintContext and paginate the document accordingly, and then
|
||
* set the number of pages with gtk_print_operation_set_n_pages().
|
||
*/
|
||
signals[BEGIN_PRINT] =
|
||
g_signal_new (I_("begin-print"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, begin_print),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 1, GTK_TYPE_PRINT_CONTEXT);
|
||
|
||
/**
|
||
* GtkPrintOperation::paginate:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @context: the #GtkPrintContext for the current operation
|
||
*
|
||
* Emitted after the #GtkPrintOperation::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_print_operation_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 ::begin-print handler, and set the number of pages
|
||
* from there.
|
||
*
|
||
* Returns: %TRUE if pagination is complete
|
||
*/
|
||
signals[PAGINATE] =
|
||
g_signal_new (I_("paginate"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, paginate),
|
||
paginate_accumulator, NULL,
|
||
_gtk_marshal_BOOLEAN__OBJECT,
|
||
G_TYPE_BOOLEAN, 1, GTK_TYPE_PRINT_CONTEXT);
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation::request-page-setup:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @context: the #GtkPrintContext for the current operation
|
||
* @page_nr: the number of the currently printed page (0-based)
|
||
* @setup: the #GtkPageSetup
|
||
*
|
||
* 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.
|
||
*/
|
||
signals[REQUEST_PAGE_SETUP] =
|
||
g_signal_new (I_("request-page-setup"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, request_page_setup),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__OBJECT_INT_OBJECT,
|
||
G_TYPE_NONE, 3,
|
||
GTK_TYPE_PRINT_CONTEXT,
|
||
G_TYPE_INT,
|
||
GTK_TYPE_PAGE_SETUP);
|
||
|
||
/**
|
||
* GtkPrintOperation::draw-page:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @context: the #GtkPrintContext for the current operation
|
||
* @page_nr: the number of the currently printed page (0-based)
|
||
*
|
||
* 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_print_context_get_cairo_context().
|
||
* |[<!-- language="C" -->
|
||
* static void
|
||
* draw_page (GtkPrintOperation *operation,
|
||
* GtkPrintContext *context,
|
||
* int page_nr,
|
||
* gpointer user_data)
|
||
* {
|
||
* cairo_t *cr;
|
||
* PangoLayout *layout;
|
||
* double width, text_height;
|
||
* int layout_height;
|
||
* PangoFontDescription *desc;
|
||
*
|
||
* cr = gtk_print_context_get_cairo_context (context);
|
||
* width = gtk_print_context_get_width (context);
|
||
*
|
||
* cairo_rectangle (cr, 0, 0, width, HEADER_HEIGHT);
|
||
*
|
||
* cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
|
||
* cairo_fill (cr);
|
||
*
|
||
* layout = gtk_print_context_create_pango_layout (context);
|
||
*
|
||
* desc = pango_font_description_from_string ("sans 14");
|
||
* pango_layout_set_font_description (layout, desc);
|
||
* pango_font_description_free (desc);
|
||
*
|
||
* pango_layout_set_text (layout, "some text", -1);
|
||
* pango_layout_set_width (layout, width * PANGO_SCALE);
|
||
* pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
|
||
*
|
||
* pango_layout_get_size (layout, NULL, &layout_height);
|
||
* text_height = (double)layout_height / PANGO_SCALE;
|
||
*
|
||
* cairo_move_to (cr, width / 2, (HEADER_HEIGHT - text_height) / 2);
|
||
* pango_cairo_show_layout (cr, layout);
|
||
*
|
||
* g_object_unref (layout);
|
||
* }
|
||
* ]|
|
||
*
|
||
* Use gtk_print_operation_set_use_full_page() and
|
||
* gtk_print_operation_set_unit() before starting the print operation
|
||
* to set up the transformation of the cairo context according to your
|
||
* needs.
|
||
*/
|
||
signals[DRAW_PAGE] =
|
||
g_signal_new (I_("draw-page"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, draw_page),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__OBJECT_INT,
|
||
G_TYPE_NONE, 2,
|
||
GTK_TYPE_PRINT_CONTEXT,
|
||
G_TYPE_INT);
|
||
|
||
/**
|
||
* GtkPrintOperation::end-print:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @context: the #GtkPrintContext for the current operation
|
||
*
|
||
* Emitted after all pages have been rendered.
|
||
* A handler for this signal can clean up any resources that have
|
||
* been allocated in the #GtkPrintOperation::begin-print handler.
|
||
*/
|
||
signals[END_PRINT] =
|
||
g_signal_new (I_("end-print"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, end_print),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 1, GTK_TYPE_PRINT_CONTEXT);
|
||
|
||
/**
|
||
* GtkPrintOperation::status-changed:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
*
|
||
* Emitted at between the various phases of the print operation.
|
||
* See #GtkPrintStatus for the phases that are being discriminated.
|
||
* Use gtk_print_operation_get_status() to find out the current
|
||
* status.
|
||
*/
|
||
signals[STATUS_CHANGED] =
|
||
g_signal_new (I_("status-changed"),
|
||
G_TYPE_FROM_CLASS (class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, status_changed),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation::create-custom-widget:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
*
|
||
* 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 #GtkPrintOperation::custom-widget-apply
|
||
* signal is emitted on the operation. Then you can read out any
|
||
* information you need from the widgets.
|
||
*
|
||
* Returns: (transfer none): A custom widget that gets embedded in
|
||
* the print dialog, or %NULL
|
||
*/
|
||
signals[CREATE_CUSTOM_WIDGET] =
|
||
g_signal_new (I_("create-custom-widget"),
|
||
G_TYPE_FROM_CLASS (class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, create_custom_widget),
|
||
custom_widget_accumulator, NULL,
|
||
_gtk_marshal_OBJECT__VOID,
|
||
G_TYPE_OBJECT, 0);
|
||
|
||
/**
|
||
* GtkPrintOperation::update-custom-widget:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @widget: the custom widget added in create-custom-widget
|
||
* @setup: actual page setup
|
||
* @settings: actual print settings
|
||
*
|
||
* 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.
|
||
*/
|
||
signals[UPDATE_CUSTOM_WIDGET] =
|
||
g_signal_new (I_("update-custom-widget"),
|
||
G_TYPE_FROM_CLASS (class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, update_custom_widget),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__OBJECT_OBJECT_OBJECT,
|
||
G_TYPE_NONE, 3, GTK_TYPE_WIDGET, GTK_TYPE_PAGE_SETUP, GTK_TYPE_PRINT_SETTINGS);
|
||
|
||
/**
|
||
* GtkPrintOperation::custom-widget-apply:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @widget: the custom widget added in create-custom-widget
|
||
*
|
||
* Emitted right before #GtkPrintOperation::begin-print if you added
|
||
* a custom widget in the #GtkPrintOperation::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.
|
||
*/
|
||
signals[CUSTOM_WIDGET_APPLY] =
|
||
g_signal_new (I_("custom-widget-apply"),
|
||
G_TYPE_FROM_CLASS (class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, custom_widget_apply),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 1, GTK_TYPE_WIDGET);
|
||
|
||
/**
|
||
* GtkPrintOperation::preview:
|
||
* @operation: the #GtkPrintOperation on which the signal was emitted
|
||
* @preview: the #GtkPrintOperationPreview for the current operation
|
||
* @context: the #GtkPrintContext that will be used
|
||
* @parent: (allow-none): the #GtkWindow to use as window parent, or %NULL
|
||
*
|
||
* 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_print_context_set_cairo_context().
|
||
*
|
||
* The custom preview implementation can use
|
||
* gtk_print_operation_preview_is_selected() and
|
||
* gtk_print_operation_preview_render_page() to find pages which
|
||
* are selected for print and render them. The preview must be
|
||
* finished by calling gtk_print_operation_preview_end_preview()
|
||
* (typically in response to the user clicking a close button).
|
||
*
|
||
* Returns: %TRUE if the listener wants to take over control of the preview
|
||
*/
|
||
signals[PREVIEW] =
|
||
g_signal_new (I_("preview"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkPrintOperationClass, preview),
|
||
_gtk_boolean_handled_accumulator, NULL,
|
||
_gtk_marshal_BOOLEAN__OBJECT_OBJECT_OBJECT,
|
||
G_TYPE_BOOLEAN, 3,
|
||
GTK_TYPE_PRINT_OPERATION_PREVIEW,
|
||
GTK_TYPE_PRINT_CONTEXT,
|
||
GTK_TYPE_WINDOW);
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation:default-page-setup:
|
||
*
|
||
* The #GtkPageSetup used by default.
|
||
*
|
||
* This page setup will be used by gtk_print_operation_run(),
|
||
* but it can be overridden on a per-page basis by connecting
|
||
* to the #GtkPrintOperation::request-page-setup signal.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_DEFAULT_PAGE_SETUP,
|
||
g_param_spec_object ("default-page-setup",
|
||
P_("Default Page Setup"),
|
||
P_("The GtkPageSetup used by default"),
|
||
GTK_TYPE_PAGE_SETUP,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkPrintOperation:print-settings:
|
||
*
|
||
* The #GtkPrintSettings used for initializing the dialog.
|
||
*
|
||
* Setting this property is typically used to re-establish
|
||
* print settings from a previous print operation, see
|
||
* gtk_print_operation_run().
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_PRINT_SETTINGS,
|
||
g_param_spec_object ("print-settings",
|
||
P_("Print Settings"),
|
||
P_("The GtkPrintSettings used for initializing the dialog"),
|
||
GTK_TYPE_PRINT_SETTINGS,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkPrintOperation: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.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_JOB_NAME,
|
||
g_param_spec_string ("job-name",
|
||
P_("Job Name"),
|
||
P_("A string used for identifying the print job."),
|
||
"",
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkPrintOperation: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
|
||
* #GtkPrintOperation::begin-print signal hander.
|
||
*
|
||
* Note that the page numbers passed to the
|
||
* #GtkPrintOperation::request-page-setup and
|
||
* #GtkPrintOperation::draw-page signals are 0-based, i.e. if
|
||
* the user chooses to print all pages, the last ::draw-page signal
|
||
* will be for page @n_pages - 1.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_N_PAGES,
|
||
g_param_spec_int ("n-pages",
|
||
P_("Number of Pages"),
|
||
P_("The number of pages in the document."),
|
||
-1,
|
||
G_MAXINT,
|
||
-1,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkPrintOperation:current-page:
|
||
*
|
||
* The current page in the document.
|
||
*
|
||
* If this is set before gtk_print_operation_run(),
|
||
* the user will be able to select to print only the current page.
|
||
*
|
||
* Note that this only makes sense for pre-paginated documents.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_CURRENT_PAGE,
|
||
g_param_spec_int ("current-page",
|
||
P_("Current Page"),
|
||
P_("The current page in the document"),
|
||
-1,
|
||
G_MAXINT,
|
||
-1,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkPrintOperation:use-full-page:
|
||
*
|
||
* If %TRUE, the transformation for the cairo context obtained
|
||
* from #GtkPrintContext 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).
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_USE_FULL_PAGE,
|
||
g_param_spec_boolean ("use-full-page",
|
||
P_("Use full page"),
|
||
P_("TRUE if the origin of the context should be at the corner of the page and not the corner of the imageable area"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation: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.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_TRACK_PRINT_STATUS,
|
||
g_param_spec_boolean ("track-print-status",
|
||
P_("Track Print Status"),
|
||
P_("TRUE if the print operation will continue to report on the print job status after the print data has been sent to the printer or print server."),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation:unit:
|
||
*
|
||
* The transformation for the cairo context obtained from
|
||
* #GtkPrintContext is set up in such a way that distances
|
||
* are measured in units of @unit.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_UNIT,
|
||
g_param_spec_enum ("unit",
|
||
P_("Unit"),
|
||
P_("The unit in which distances can be measured in the context"),
|
||
GTK_TYPE_UNIT,
|
||
GTK_UNIT_NONE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation:show-progress:
|
||
*
|
||
* Determines whether to show a progress dialog during the
|
||
* print operation.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_SHOW_PROGRESS,
|
||
g_param_spec_boolean ("show-progress",
|
||
P_("Show Dialog"),
|
||
P_("TRUE if a progress dialog is shown while printing."),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkPrintOperation: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_PRINT_OPERATION_RESULT_IN_PROGRESS as the status, and
|
||
* emit the #GtkPrintOperation::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_PRINT_OPERATION_ACTION_EXPORT support asynchronous operation.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_ALLOW_ASYNC,
|
||
g_param_spec_boolean ("allow-async",
|
||
P_("Allow Async"),
|
||
P_("TRUE if print process may run asynchronous."),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkPrintOperation: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.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_EXPORT_FILENAME,
|
||
g_param_spec_string ("export-filename",
|
||
P_("Export filename"),
|
||
P_("Export filename"),
|
||
NULL,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkPrintOperation:status:
|
||
*
|
||
* The status of the print operation.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_STATUS,
|
||
g_param_spec_enum ("status",
|
||
P_("Status"),
|
||
P_("The status of the print operation"),
|
||
GTK_TYPE_PRINT_STATUS,
|
||
GTK_PRINT_STATUS_INITIAL,
|
||
GTK_PARAM_READABLE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkPrintOperation:status-string:
|
||
*
|
||
* 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 #GtkStatusbar.
|
||
*
|
||
* See the #GtkPrintOperation:status property for a status value that
|
||
* is suitable for programmatic use.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_STATUS_STRING,
|
||
g_param_spec_string ("status-string",
|
||
P_("Status String"),
|
||
P_("A human-readable description of the status"),
|
||
"",
|
||
GTK_PARAM_READABLE));
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation: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 %NULL, GTK+ uses a default label.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_CUSTOM_TAB_LABEL,
|
||
g_param_spec_string ("custom-tab-label",
|
||
P_("Custom tab label"),
|
||
P_("Label for the tab containing custom widgets."),
|
||
NULL,
|
||
GTK_PARAM_READWRITE));
|
||
|
||
/**
|
||
* GtkPrintOperation:support-selection:
|
||
*
|
||
* If %TRUE, the print operation will support print of selection.
|
||
* This allows the print dialog to show a "Selection" button.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_SUPPORT_SELECTION,
|
||
g_param_spec_boolean ("support-selection",
|
||
P_("Support Selection"),
|
||
P_("TRUE if the print operation will support print of selection."),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
/**
|
||
* GtkPrintOperation: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.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_HAS_SELECTION,
|
||
g_param_spec_boolean ("has-selection",
|
||
P_("Has Selection"),
|
||
P_("TRUE if a selection exists."),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
|
||
|
||
/**
|
||
* GtkPrintOperation:embed-page-setup:
|
||
*
|
||
* If %TRUE, page size combo box and orientation combo box are embedded into page setup page.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_EMBED_PAGE_SETUP,
|
||
g_param_spec_boolean ("embed-page-setup",
|
||
P_("Embed Page Setup"),
|
||
P_("TRUE if page setup combos are embedded in GtkPrintUnixDialog"),
|
||
FALSE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
|
||
/**
|
||
* GtkPrintOperation:n-pages-to-print:
|
||
*
|
||
* The number of pages that will be printed.
|
||
*
|
||
* Note that this value is set during print preparation phase
|
||
* (%GTK_PRINT_STATUS_PREPARING), so this value should never be
|
||
* get before the data generation phase (%GTK_PRINT_STATUS_GENERATING_DATA).
|
||
* You can connect to the #GtkPrintOperation::status-changed signal
|
||
* and call gtk_print_operation_get_n_pages_to_print() when
|
||
* print status is %GTK_PRINT_STATUS_GENERATING_DATA.
|
||
* This is typically used to track the progress of print operation.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_N_PAGES_TO_PRINT,
|
||
g_param_spec_int ("n-pages-to-print",
|
||
P_("Number of Pages To Print"),
|
||
P_("The number of pages that will be printed."),
|
||
-1,
|
||
G_MAXINT,
|
||
-1,
|
||
GTK_PARAM_READABLE|G_PARAM_EXPLICIT_NOTIFY));
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_new:
|
||
*
|
||
* Creates a new #GtkPrintOperation.
|
||
*
|
||
* Returns: a new #GtkPrintOperation
|
||
*/
|
||
GtkPrintOperation *
|
||
gtk_print_operation_new (void)
|
||
{
|
||
GtkPrintOperation *print_operation;
|
||
|
||
print_operation = g_object_new (GTK_TYPE_PRINT_OPERATION, NULL);
|
||
|
||
return print_operation;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_default_page_setup:
|
||
* @op: a #GtkPrintOperation
|
||
* @default_page_setup: (allow-none): a #GtkPageSetup, or %NULL
|
||
*
|
||
* Makes @default_page_setup the default page setup for @op.
|
||
*
|
||
* This page setup will be used by gtk_print_operation_run(),
|
||
* but it can be overridden on a per-page basis by connecting
|
||
* to the #GtkPrintOperation::request-page-setup signal.
|
||
**/
|
||
void
|
||
gtk_print_operation_set_default_page_setup (GtkPrintOperation *op,
|
||
GtkPageSetup *default_page_setup)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
g_return_if_fail (default_page_setup == NULL ||
|
||
GTK_IS_PAGE_SETUP (default_page_setup));
|
||
|
||
if (default_page_setup != priv->default_page_setup)
|
||
{
|
||
if (default_page_setup)
|
||
g_object_ref (default_page_setup);
|
||
|
||
if (priv->default_page_setup)
|
||
g_object_unref (priv->default_page_setup);
|
||
|
||
priv->default_page_setup = default_page_setup;
|
||
|
||
g_object_notify (G_OBJECT (op), "default-page-setup");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_default_page_setup:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Returns the default page setup, see
|
||
* gtk_print_operation_set_default_page_setup().
|
||
*
|
||
* Returns: (transfer none): the default page setup
|
||
*/
|
||
GtkPageSetup *
|
||
gtk_print_operation_get_default_page_setup (GtkPrintOperation *op)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), NULL);
|
||
|
||
return op->priv->default_page_setup;
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_print_operation_set_print_settings:
|
||
* @op: a #GtkPrintOperation
|
||
* @print_settings: (allow-none): #GtkPrintSettings
|
||
*
|
||
* Sets the print settings for @op. This is typically used to
|
||
* re-establish print settings from a previous print operation,
|
||
* see gtk_print_operation_run().
|
||
**/
|
||
void
|
||
gtk_print_operation_set_print_settings (GtkPrintOperation *op,
|
||
GtkPrintSettings *print_settings)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
g_return_if_fail (print_settings == NULL ||
|
||
GTK_IS_PRINT_SETTINGS (print_settings));
|
||
|
||
if (print_settings != priv->print_settings)
|
||
{
|
||
if (print_settings)
|
||
g_object_ref (print_settings);
|
||
|
||
if (priv->print_settings)
|
||
g_object_unref (priv->print_settings);
|
||
|
||
priv->print_settings = print_settings;
|
||
|
||
g_object_notify (G_OBJECT (op), "print-settings");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_print_settings:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Returns the current print settings.
|
||
*
|
||
* Note that the return value is %NULL until either
|
||
* gtk_print_operation_set_print_settings() or
|
||
* gtk_print_operation_run() have been called.
|
||
*
|
||
* Returns: (transfer none): the current print settings of @op.
|
||
**/
|
||
GtkPrintSettings *
|
||
gtk_print_operation_get_print_settings (GtkPrintOperation *op)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), NULL);
|
||
|
||
return op->priv->print_settings;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_job_name:
|
||
* @op: a #GtkPrintOperation
|
||
* @job_name: a string that identifies the print job
|
||
*
|
||
* 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.
|
||
**/
|
||
void
|
||
gtk_print_operation_set_job_name (GtkPrintOperation *op,
|
||
const char *job_name)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
g_return_if_fail (job_name != NULL);
|
||
|
||
if (g_strcmp0 (priv->job_name, job_name) == 0)
|
||
return;
|
||
|
||
g_free (priv->job_name);
|
||
priv->job_name = g_strdup (job_name);
|
||
|
||
g_object_notify (G_OBJECT (op), "job-name");
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_n_pages:
|
||
* @op: a #GtkPrintOperation
|
||
* @n_pages: the number of 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
|
||
* #GtkPrintOperation::begin-print signal hander.
|
||
*
|
||
* Note that the page numbers passed to the
|
||
* #GtkPrintOperation::request-page-setup
|
||
* and #GtkPrintOperation::draw-page signals are 0-based, i.e. if
|
||
* the user chooses to print all pages, the last ::draw-page signal
|
||
* will be for page @n_pages - 1.
|
||
**/
|
||
void
|
||
gtk_print_operation_set_n_pages (GtkPrintOperation *op,
|
||
int n_pages)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
g_return_if_fail (n_pages > 0);
|
||
g_return_if_fail (priv->current_page == -1 ||
|
||
priv->current_page < n_pages);
|
||
|
||
if (priv->nr_of_pages != n_pages)
|
||
{
|
||
priv->nr_of_pages = n_pages;
|
||
|
||
g_object_notify (G_OBJECT (op), "n-pages");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_current_page:
|
||
* @op: a #GtkPrintOperation
|
||
* @current_page: the current page, 0-based
|
||
*
|
||
* Sets the current page.
|
||
*
|
||
* If this is called before gtk_print_operation_run(),
|
||
* the user will be able to select to print only the current page.
|
||
*
|
||
* Note that this only makes sense for pre-paginated documents.
|
||
**/
|
||
void
|
||
gtk_print_operation_set_current_page (GtkPrintOperation *op,
|
||
int current_page)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
g_return_if_fail (current_page >= 0);
|
||
g_return_if_fail (priv->nr_of_pages == -1 ||
|
||
current_page < priv->nr_of_pages);
|
||
|
||
if (priv->current_page != current_page)
|
||
{
|
||
priv->current_page = current_page;
|
||
|
||
g_object_notify (G_OBJECT (op), "current-page");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_use_full_page:
|
||
* @op: a #GtkPrintOperation
|
||
* @full_page: %TRUE to set up the #GtkPrintContext for the full page
|
||
*
|
||
* If @full_page is %TRUE, the transformation for the cairo context
|
||
* obtained from #GtkPrintContext 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).
|
||
*/
|
||
void
|
||
gtk_print_operation_set_use_full_page (GtkPrintOperation *op,
|
||
gboolean full_page)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
full_page = full_page != FALSE;
|
||
|
||
if (priv->use_full_page != full_page)
|
||
{
|
||
priv->use_full_page = full_page;
|
||
|
||
g_object_notify (G_OBJECT (op), "use-full-page");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_unit:
|
||
* @op: a #GtkPrintOperation
|
||
* @unit: the unit to use
|
||
*
|
||
* Sets up the transformation for the cairo context obtained from
|
||
* #GtkPrintContext in such a way that distances are measured in
|
||
* units of @unit.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_unit (GtkPrintOperation *op,
|
||
GtkUnit unit)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
if (priv->unit != unit)
|
||
{
|
||
priv->unit = unit;
|
||
|
||
g_object_notify (G_OBJECT (op), "unit");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_track_print_status:
|
||
* @op: a #GtkPrintOperation
|
||
* @track_status: %TRUE to track status after printing
|
||
*
|
||
* 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.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_track_print_status (GtkPrintOperation *op,
|
||
gboolean track_status)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
if (priv->track_print_status != track_status)
|
||
{
|
||
priv->track_print_status = track_status;
|
||
|
||
g_object_notify (G_OBJECT (op), "track-print-status");
|
||
}
|
||
}
|
||
|
||
void
|
||
_gtk_print_operation_set_status (GtkPrintOperation *op,
|
||
GtkPrintStatus status,
|
||
const char *string)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
static const char *status_strs[] = {
|
||
NC_("print operation status", "Initial state"),
|
||
NC_("print operation status", "Preparing to print"),
|
||
NC_("print operation status", "Generating data"),
|
||
NC_("print operation status", "Sending data"),
|
||
NC_("print operation status", "Waiting"),
|
||
NC_("print operation status", "Blocking on issue"),
|
||
NC_("print operation status", "Printing"),
|
||
NC_("print operation status", "Finished"),
|
||
NC_("print operation status", "Finished with error")
|
||
};
|
||
|
||
if (status > GTK_PRINT_STATUS_FINISHED_ABORTED)
|
||
status = GTK_PRINT_STATUS_FINISHED_ABORTED;
|
||
|
||
if (string == NULL)
|
||
string = g_dpgettext2 (GETTEXT_PACKAGE, "print operation status", status_strs[status]);
|
||
|
||
if (priv->status == status &&
|
||
strcmp (string, priv->status_string) == 0)
|
||
return;
|
||
|
||
g_free (priv->status_string);
|
||
priv->status_string = g_strdup (string);
|
||
priv->status = status;
|
||
|
||
g_object_notify (G_OBJECT (op), "status");
|
||
g_object_notify (G_OBJECT (op), "status-string");
|
||
|
||
g_signal_emit (op, signals[STATUS_CHANGED], 0);
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_print_operation_get_status:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Returns the status of the print operation.
|
||
* Also see gtk_print_operation_get_status_string().
|
||
*
|
||
* Returns: the status of the print operation
|
||
**/
|
||
GtkPrintStatus
|
||
gtk_print_operation_get_status (GtkPrintOperation *op)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op),
|
||
GTK_PRINT_STATUS_FINISHED_ABORTED);
|
||
|
||
return op->priv->status;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_status_string:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* 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 #GtkStatusbar.
|
||
*
|
||
* Use gtk_print_operation_get_status() to obtain a status
|
||
* value that is suitable for programmatic use.
|
||
*
|
||
* Returns: a string representation of the status
|
||
* of the print operation
|
||
**/
|
||
const char *
|
||
gtk_print_operation_get_status_string (GtkPrintOperation *op)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), "");
|
||
|
||
return op->priv->status_string;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_is_finished:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* A convenience function to find out if the print operation
|
||
* is finished, either successfully (%GTK_PRINT_STATUS_FINISHED)
|
||
* or unsuccessfully (%GTK_PRINT_STATUS_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.
|
||
**/
|
||
gboolean
|
||
gtk_print_operation_is_finished (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), TRUE);
|
||
|
||
return
|
||
priv->status == GTK_PRINT_STATUS_FINISHED_ABORTED ||
|
||
priv->status == GTK_PRINT_STATUS_FINISHED;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_show_progress:
|
||
* @op: a #GtkPrintOperation
|
||
* @show_progress: %TRUE to show a progress dialog
|
||
*
|
||
* If @show_progress is %TRUE, the print operation will show a
|
||
* progress dialog during the print operation.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_show_progress (GtkPrintOperation *op,
|
||
gboolean show_progress)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
show_progress = show_progress != FALSE;
|
||
|
||
if (priv->show_progress != show_progress)
|
||
{
|
||
priv->show_progress = show_progress;
|
||
|
||
g_object_notify (G_OBJECT (op), "show-progress");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_allow_async:
|
||
* @op: a #GtkPrintOperation
|
||
* @allow_async: %TRUE to allow asynchronous operation
|
||
*
|
||
* Sets whether the gtk_print_operation_run() may return
|
||
* before the print operation is completed. Note that
|
||
* some platforms may not allow asynchronous operation.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_allow_async (GtkPrintOperation *op,
|
||
gboolean allow_async)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
allow_async = allow_async != FALSE;
|
||
|
||
if (priv->allow_async != allow_async)
|
||
{
|
||
priv->allow_async = allow_async;
|
||
|
||
g_object_notify (G_OBJECT (op), "allow-async");
|
||
}
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_print_operation_set_custom_tab_label:
|
||
* @op: a #GtkPrintOperation
|
||
* @label: (allow-none): the label to use, or %NULL to use the default label
|
||
*
|
||
* Sets the label for the tab holding custom widgets.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_custom_tab_label (GtkPrintOperation *op,
|
||
const char *label)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
g_free (priv->custom_tab_label);
|
||
priv->custom_tab_label = g_strdup (label);
|
||
|
||
g_object_notify (G_OBJECT (op), "custom-tab-label");
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_print_operation_set_export_filename:
|
||
* @op: a #GtkPrintOperation
|
||
* @filename: (type filename): the filename for the exported file
|
||
*
|
||
* Sets up the #GtkPrintOperation to generate a file instead
|
||
* of showing the print dialog. The indended 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.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_export_filename (GtkPrintOperation *op,
|
||
const char *filename)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
g_free (priv->export_filename);
|
||
priv->export_filename = g_strdup (filename);
|
||
|
||
g_object_notify (G_OBJECT (op), "export-filename");
|
||
}
|
||
|
||
/* Creates the initial page setup used for printing unless the
|
||
* app overrides this on a per-page basis using request_page_setup.
|
||
*
|
||
* Data is taken from, in order, if existing:
|
||
*
|
||
* PrintSettings returned from the print dialog
|
||
* (initial dialog values are set from default_page_setup
|
||
* if unset in app specified print_settings)
|
||
* default_page_setup
|
||
* per-locale default setup
|
||
*/
|
||
static GtkPageSetup *
|
||
create_page_setup (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
GtkPageSetup *page_setup;
|
||
GtkPrintSettings *settings;
|
||
|
||
if (priv->default_page_setup)
|
||
page_setup = gtk_page_setup_copy (priv->default_page_setup);
|
||
else
|
||
page_setup = gtk_page_setup_new ();
|
||
|
||
settings = priv->print_settings;
|
||
if (settings)
|
||
{
|
||
GtkPaperSize *paper_size;
|
||
|
||
if (gtk_print_settings_has_key (settings, GTK_PRINT_SETTINGS_ORIENTATION))
|
||
gtk_page_setup_set_orientation (page_setup,
|
||
gtk_print_settings_get_orientation (settings));
|
||
|
||
|
||
paper_size = gtk_print_settings_get_paper_size (settings);
|
||
if (paper_size)
|
||
{
|
||
gtk_page_setup_set_paper_size (page_setup, paper_size);
|
||
gtk_paper_size_free (paper_size);
|
||
}
|
||
|
||
/* TODO: Margins? */
|
||
}
|
||
|
||
return page_setup;
|
||
}
|
||
|
||
static void
|
||
pdf_start_page (GtkPrintOperation *op,
|
||
GtkPrintContext *print_context,
|
||
GtkPageSetup *page_setup)
|
||
{
|
||
cairo_surface_t *surface = op->priv->platform_data;
|
||
double w, h;
|
||
|
||
w = gtk_page_setup_get_paper_width (page_setup, GTK_UNIT_POINTS);
|
||
h = gtk_page_setup_get_paper_height (page_setup, GTK_UNIT_POINTS);
|
||
|
||
cairo_pdf_surface_set_size (surface, w, h);
|
||
}
|
||
|
||
static void
|
||
pdf_end_page (GtkPrintOperation *op,
|
||
GtkPrintContext *print_context)
|
||
{
|
||
cairo_t *cr;
|
||
|
||
cr = gtk_print_context_get_cairo_context (print_context);
|
||
|
||
if ((op->priv->manual_number_up < 2) ||
|
||
((op->priv->page_position + 1) % op->priv->manual_number_up == 0) ||
|
||
(op->priv->page_position == op->priv->nr_of_pages_to_print - 1))
|
||
cairo_show_page (cr);
|
||
}
|
||
|
||
static void
|
||
pdf_end_run (GtkPrintOperation *op,
|
||
gboolean wait,
|
||
gboolean cancelled)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
cairo_surface_t *surface = priv->platform_data;
|
||
|
||
cairo_surface_finish (surface);
|
||
cairo_surface_destroy (surface);
|
||
|
||
priv->platform_data = NULL;
|
||
priv->free_platform_data = NULL;
|
||
}
|
||
|
||
static GtkPrintOperationResult
|
||
run_pdf (GtkPrintOperation *op,
|
||
GtkWindow *parent,
|
||
gboolean *do_print)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
GtkPageSetup *page_setup;
|
||
cairo_surface_t *surface;
|
||
cairo_t *cr;
|
||
double width, height;
|
||
|
||
priv->print_context = _gtk_print_context_new (op);
|
||
|
||
page_setup = create_page_setup (op);
|
||
_gtk_print_context_set_page_setup (priv->print_context, page_setup);
|
||
|
||
/* This will be overwritten later by the non-default size, but
|
||
we need to pass some size: */
|
||
width = gtk_page_setup_get_paper_width (page_setup, GTK_UNIT_POINTS);
|
||
height = gtk_page_setup_get_paper_height (page_setup, GTK_UNIT_POINTS);
|
||
g_object_unref (page_setup);
|
||
|
||
surface = cairo_pdf_surface_create (priv->export_filename,
|
||
width, height);
|
||
if (cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)
|
||
{
|
||
g_set_error_literal (&priv->error,
|
||
GTK_PRINT_ERROR,
|
||
GTK_PRINT_ERROR_GENERAL,
|
||
cairo_status_to_string (cairo_surface_status (surface)));
|
||
*do_print = FALSE;
|
||
return GTK_PRINT_OPERATION_RESULT_ERROR;
|
||
}
|
||
|
||
/* this would crash on a nil surface */
|
||
cairo_surface_set_fallback_resolution (surface, 300, 300);
|
||
|
||
priv->platform_data = surface;
|
||
priv->free_platform_data = (GDestroyNotify) cairo_surface_destroy;
|
||
|
||
cr = cairo_create (surface);
|
||
gtk_print_context_set_cairo_context (op->priv->print_context,
|
||
cr, 72, 72);
|
||
cairo_destroy (cr);
|
||
|
||
|
||
priv->print_pages = GTK_PRINT_PAGES_ALL;
|
||
priv->page_ranges = NULL;
|
||
priv->num_page_ranges = 0;
|
||
|
||
priv->manual_num_copies = 1;
|
||
priv->manual_collation = FALSE;
|
||
priv->manual_reverse = FALSE;
|
||
priv->manual_page_set = GTK_PAGE_SET_ALL;
|
||
priv->manual_scale = 1.0;
|
||
priv->manual_orientation = FALSE;
|
||
priv->manual_number_up = 1;
|
||
priv->manual_number_up_layout = GTK_NUMBER_UP_LAYOUT_LEFT_TO_RIGHT_TOP_TO_BOTTOM;
|
||
|
||
*do_print = TRUE;
|
||
|
||
priv->start_page = pdf_start_page;
|
||
priv->end_page = pdf_end_page;
|
||
priv->end_run = pdf_end_run;
|
||
|
||
return GTK_PRINT_OPERATION_RESULT_APPLY;
|
||
}
|
||
|
||
|
||
static void
|
||
clamp_page_ranges (PrintPagesData *data)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (data->op);
|
||
int num_of_correct_ranges;
|
||
int i;
|
||
|
||
num_of_correct_ranges = 0;
|
||
|
||
for (i = 0; i < data->num_ranges; i++)
|
||
if ((data->ranges[i].start >= 0) &&
|
||
(data->ranges[i].start < priv->nr_of_pages) &&
|
||
(data->ranges[i].end >= 0) &&
|
||
(data->ranges[i].end < priv->nr_of_pages))
|
||
{
|
||
data->ranges[num_of_correct_ranges] = data->ranges[i];
|
||
num_of_correct_ranges++;
|
||
}
|
||
else if ((data->ranges[i].start >= 0) &&
|
||
(data->ranges[i].start < priv->nr_of_pages) &&
|
||
(data->ranges[i].end >= priv->nr_of_pages))
|
||
{
|
||
data->ranges[i].end = priv->nr_of_pages - 1;
|
||
data->ranges[num_of_correct_ranges] = data->ranges[i];
|
||
num_of_correct_ranges++;
|
||
}
|
||
else if ((data->ranges[i].end >= 0) &&
|
||
(data->ranges[i].end < priv->nr_of_pages) &&
|
||
(data->ranges[i].start < 0))
|
||
{
|
||
data->ranges[i].start = 0;
|
||
data->ranges[num_of_correct_ranges] = data->ranges[i];
|
||
num_of_correct_ranges++;
|
||
}
|
||
|
||
data->num_ranges = num_of_correct_ranges;
|
||
}
|
||
|
||
static void
|
||
increment_page_sequence (PrintPagesData *data)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (data->op);
|
||
int inc;
|
||
|
||
if (data->total == -1)
|
||
{
|
||
data->total = 0;
|
||
return;
|
||
}
|
||
|
||
/* check whether we reached last position */
|
||
if (priv->page_position == data->last_position &&
|
||
!(data->collated_copies > 1 && data->collated < (data->collated_copies - 1)))
|
||
{
|
||
if (data->uncollated_copies > 1 && data->uncollated < (data->uncollated_copies - 1))
|
||
{
|
||
priv->page_position = data->first_position;
|
||
data->sheet = data->first_sheet;
|
||
data->uncollated++;
|
||
}
|
||
else
|
||
{
|
||
data->done = TRUE;
|
||
return;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (priv->manual_reverse)
|
||
inc = -1;
|
||
else
|
||
inc = 1;
|
||
|
||
/* changing sheet */
|
||
if (priv->manual_number_up < 2 ||
|
||
(priv->page_position + 1) % priv->manual_number_up == 0 ||
|
||
priv->page_position == data->last_position ||
|
||
priv->page_position == priv->nr_of_pages_to_print - 1)
|
||
{
|
||
/* check whether to print the same sheet again */
|
||
if (data->collated_copies > 1)
|
||
{
|
||
if (data->collated < (data->collated_copies - 1))
|
||
{
|
||
data->collated++;
|
||
data->total++;
|
||
priv->page_position = data->sheet * priv->manual_number_up;
|
||
|
||
if (priv->page_position < 0 ||
|
||
priv->page_position >= priv->nr_of_pages_to_print ||
|
||
data->sheet < 0 ||
|
||
data->sheet >= data->num_of_sheets)
|
||
{
|
||
data->done = TRUE;
|
||
return;
|
||
}
|
||
else
|
||
data->page = data->pages[priv->page_position];
|
||
|
||
return;
|
||
}
|
||
else
|
||
data->collated = 0;
|
||
}
|
||
|
||
if (priv->manual_page_set == GTK_PAGE_SET_ODD ||
|
||
priv->manual_page_set == GTK_PAGE_SET_EVEN)
|
||
data->sheet += 2 * inc;
|
||
else
|
||
data->sheet += inc;
|
||
|
||
priv->page_position = data->sheet * priv->manual_number_up;
|
||
}
|
||
else
|
||
priv->page_position += 1;
|
||
}
|
||
|
||
/* general check */
|
||
if (priv->page_position < 0 ||
|
||
priv->page_position >= priv->nr_of_pages_to_print ||
|
||
data->sheet < 0 ||
|
||
data->sheet >= data->num_of_sheets)
|
||
{
|
||
data->done = TRUE;
|
||
return;
|
||
}
|
||
else
|
||
data->page = data->pages[priv->page_position];
|
||
|
||
data->total++;
|
||
}
|
||
|
||
static void
|
||
print_pages_idle_done (gpointer user_data)
|
||
{
|
||
PrintPagesData *data = (PrintPagesData*)user_data;
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (data->op);
|
||
|
||
priv = data->op->priv;
|
||
|
||
priv->print_pages_idle_id = 0;
|
||
|
||
if (priv->show_progress_timeout_id > 0)
|
||
{
|
||
g_source_remove (priv->show_progress_timeout_id);
|
||
priv->show_progress_timeout_id = 0;
|
||
}
|
||
|
||
if (data->progress)
|
||
gtk_window_destroy (GTK_WINDOW (data->progress));
|
||
|
||
if (priv->rloop && !data->is_preview)
|
||
g_main_loop_quit (priv->rloop);
|
||
|
||
if (!data->is_preview)
|
||
{
|
||
GtkPrintOperationResult result;
|
||
|
||
if (priv->error)
|
||
result = GTK_PRINT_OPERATION_RESULT_ERROR;
|
||
else if (priv->cancelled)
|
||
result = GTK_PRINT_OPERATION_RESULT_CANCEL;
|
||
else
|
||
result = GTK_PRINT_OPERATION_RESULT_APPLY;
|
||
|
||
g_signal_emit (data->op, signals[DONE], 0, result);
|
||
}
|
||
|
||
g_object_unref (data->op);
|
||
g_free (data->pages);
|
||
g_free (data);
|
||
}
|
||
|
||
static void
|
||
update_progress (PrintPagesData *data)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (data->op);
|
||
char *text = NULL;
|
||
|
||
if (data->progress)
|
||
{
|
||
if (priv->status == GTK_PRINT_STATUS_PREPARING)
|
||
{
|
||
if (priv->nr_of_pages_to_print > 0)
|
||
text = g_strdup_printf (_("Preparing %d"), priv->nr_of_pages_to_print);
|
||
else
|
||
text = g_strdup (_("Preparing"));
|
||
}
|
||
else if (priv->status == GTK_PRINT_STATUS_GENERATING_DATA)
|
||
text = g_strdup_printf (_("Printing %d"), data->total);
|
||
|
||
if (text)
|
||
{
|
||
g_object_set (data->progress, "text", text, NULL);
|
||
g_free (text);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_defer_drawing:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Sets up the #GtkPrintOperation to wait for calling of
|
||
* gtk_print_operation_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_print_operation_set_defer_drawing (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_DRAWING);
|
||
|
||
priv->page_drawing_state = GTK_PAGE_DRAWING_STATE_DEFERRED_DRAWING;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_embed_page_setup:
|
||
* @op: a #GtkPrintOperation
|
||
* @embed: %TRUE to embed page setup selection in the #GtkPrintUnixDialog
|
||
*
|
||
* Embed page size combo box and orientation combo box into page setup page.
|
||
* Selected page setup is stored as default page setup in #GtkPrintOperation.
|
||
**/
|
||
void
|
||
gtk_print_operation_set_embed_page_setup (GtkPrintOperation *op,
|
||
gboolean embed)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
embed = embed != FALSE;
|
||
if (priv->embed_page_setup != embed)
|
||
{
|
||
priv->embed_page_setup = embed;
|
||
g_object_notify (G_OBJECT (op), "embed-page-setup");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_embed_page_setup:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Gets the value of #GtkPrintOperation:embed-page-setup property.
|
||
*
|
||
* Returns: whether page setup selection combos are embedded
|
||
*/
|
||
gboolean
|
||
gtk_print_operation_get_embed_page_setup (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), FALSE);
|
||
|
||
return priv->embed_page_setup;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_draw_page_finish:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Signalize that drawing of particular page is complete.
|
||
*
|
||
* It is called after completion of page drawing (e.g. drawing in another
|
||
* thread).
|
||
* If gtk_print_operation_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.
|
||
**/
|
||
void
|
||
gtk_print_operation_draw_page_finish (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
GtkPageSetup *page_setup;
|
||
GtkPrintContext *print_context;
|
||
cairo_t *cr;
|
||
|
||
print_context = priv->print_context;
|
||
page_setup = gtk_print_context_get_page_setup (print_context);
|
||
|
||
cr = gtk_print_context_get_cairo_context (print_context);
|
||
|
||
priv->end_page (op, print_context);
|
||
|
||
cairo_restore (cr);
|
||
|
||
g_object_unref (page_setup);
|
||
|
||
priv->page_drawing_state = GTK_PAGE_DRAWING_STATE_READY;
|
||
}
|
||
|
||
static void
|
||
common_render_page (GtkPrintOperation *op,
|
||
int page_nr)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
GtkPageSetup *page_setup;
|
||
GtkPrintContext *print_context;
|
||
cairo_t *cr;
|
||
|
||
print_context = priv->print_context;
|
||
|
||
page_setup = create_page_setup (op);
|
||
|
||
g_signal_emit (op, signals[REQUEST_PAGE_SETUP], 0,
|
||
print_context, page_nr, page_setup);
|
||
|
||
_gtk_print_context_set_page_setup (print_context, page_setup);
|
||
|
||
priv->start_page (op, print_context, page_setup);
|
||
|
||
cr = gtk_print_context_get_cairo_context (print_context);
|
||
|
||
cairo_save (cr);
|
||
|
||
if (priv->manual_orientation)
|
||
_gtk_print_context_rotate_according_to_orientation (print_context);
|
||
else
|
||
_gtk_print_context_reverse_according_to_orientation (print_context);
|
||
|
||
if (priv->manual_number_up <= 1)
|
||
{
|
||
if (!priv->use_full_page)
|
||
_gtk_print_context_translate_into_margin (print_context);
|
||
if (priv->manual_scale != 1.0)
|
||
cairo_scale (cr,
|
||
priv->manual_scale,
|
||
priv->manual_scale);
|
||
}
|
||
else
|
||
{
|
||
GtkPageOrientation orientation;
|
||
double paper_width, paper_height;
|
||
double page_width, page_height;
|
||
double context_width, context_height;
|
||
double bottom_margin, top_margin, left_margin, right_margin;
|
||
double x_step, y_step;
|
||
double x_scale, y_scale, scale;
|
||
double horizontal_offset = 0.0, vertical_offset = 0.0;
|
||
int columns, rows, x, y, tmp_length;
|
||
|
||
page_setup = gtk_print_context_get_page_setup (print_context);
|
||
orientation = gtk_page_setup_get_orientation (page_setup);
|
||
|
||
top_margin = gtk_page_setup_get_top_margin (page_setup, GTK_UNIT_POINTS);
|
||
bottom_margin = gtk_page_setup_get_bottom_margin (page_setup, GTK_UNIT_POINTS);
|
||
left_margin = gtk_page_setup_get_left_margin (page_setup, GTK_UNIT_POINTS);
|
||
right_margin = gtk_page_setup_get_right_margin (page_setup, GTK_UNIT_POINTS);
|
||
|
||
paper_width = gtk_page_setup_get_paper_width (page_setup, GTK_UNIT_POINTS);
|
||
paper_height = gtk_page_setup_get_paper_height (page_setup, GTK_UNIT_POINTS);
|
||
|
||
context_width = gtk_print_context_get_width (print_context);
|
||
context_height = gtk_print_context_get_height (print_context);
|
||
|
||
if (orientation == GTK_PAGE_ORIENTATION_PORTRAIT ||
|
||
orientation == GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT)
|
||
{
|
||
page_width = paper_width - (left_margin + right_margin);
|
||
page_height = paper_height - (top_margin + bottom_margin);
|
||
}
|
||
else
|
||
{
|
||
page_width = paper_width - (top_margin + bottom_margin);
|
||
page_height = paper_height - (left_margin + right_margin);
|
||
}
|
||
|
||
if (orientation == GTK_PAGE_ORIENTATION_PORTRAIT ||
|
||
orientation == GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT)
|
||
cairo_translate (cr, left_margin, top_margin);
|
||
else
|
||
cairo_translate (cr, top_margin, left_margin);
|
||
|
||
switch (priv->manual_number_up)
|
||
{
|
||
default:
|
||
columns = 1;
|
||
rows = 1;
|
||
break;
|
||
case 2:
|
||
columns = 2;
|
||
rows = 1;
|
||
break;
|
||
case 4:
|
||
columns = 2;
|
||
rows = 2;
|
||
break;
|
||
case 6:
|
||
columns = 3;
|
||
rows = 2;
|
||
break;
|
||
case 9:
|
||
columns = 3;
|
||
rows = 3;
|
||
break;
|
||
case 16:
|
||
columns = 4;
|
||
rows = 4;
|
||
break;
|
||
}
|
||
|
||
if (orientation == GTK_PAGE_ORIENTATION_LANDSCAPE ||
|
||
orientation == GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE)
|
||
{
|
||
tmp_length = columns;
|
||
columns = rows;
|
||
rows = tmp_length;
|
||
}
|
||
|
||
switch (priv->manual_number_up_layout)
|
||
{
|
||
case GTK_NUMBER_UP_LAYOUT_LEFT_TO_RIGHT_TOP_TO_BOTTOM:
|
||
x = priv->page_position % columns;
|
||
y = (priv->page_position / columns) % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_LEFT_TO_RIGHT_BOTTOM_TO_TOP:
|
||
x = priv->page_position % columns;
|
||
y = rows - 1 - (priv->page_position / columns) % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_RIGHT_TO_LEFT_TOP_TO_BOTTOM:
|
||
x = columns - 1 - priv->page_position % columns;
|
||
y = (priv->page_position / columns) % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_RIGHT_TO_LEFT_BOTTOM_TO_TOP:
|
||
x = columns - 1 - priv->page_position % columns;
|
||
y = rows - 1 - (priv->page_position / columns) % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_TOP_TO_BOTTOM_LEFT_TO_RIGHT:
|
||
x = (priv->page_position / rows) % columns;
|
||
y = priv->page_position % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_TOP_TO_BOTTOM_RIGHT_TO_LEFT:
|
||
x = columns - 1 - (priv->page_position / rows) % columns;
|
||
y = priv->page_position % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_BOTTOM_TO_TOP_LEFT_TO_RIGHT:
|
||
x = (priv->page_position / rows) % columns;
|
||
y = rows - 1 - priv->page_position % rows;
|
||
break;
|
||
case GTK_NUMBER_UP_LAYOUT_BOTTOM_TO_TOP_RIGHT_TO_LEFT:
|
||
x = columns - 1 - (priv->page_position / rows) % columns;
|
||
y = rows - 1 - priv->page_position % rows;
|
||
break;
|
||
default:
|
||
g_assert_not_reached();
|
||
x = 0;
|
||
y = 0;
|
||
}
|
||
|
||
if (priv->manual_number_up == 4 || priv->manual_number_up == 9 || priv->manual_number_up == 16)
|
||
{
|
||
x_scale = page_width / (columns * paper_width);
|
||
y_scale = page_height / (rows * paper_height);
|
||
|
||
scale = x_scale < y_scale ? x_scale : y_scale;
|
||
|
||
x_step = paper_width * (x_scale / scale);
|
||
y_step = paper_height * (y_scale / scale);
|
||
|
||
if ((left_margin + right_margin) > 0)
|
||
{
|
||
horizontal_offset = left_margin * (x_step - context_width) / (left_margin + right_margin);
|
||
vertical_offset = top_margin * (y_step - context_height) / (top_margin + bottom_margin);
|
||
}
|
||
else
|
||
{
|
||
horizontal_offset = (x_step - context_width) / 2.0;
|
||
vertical_offset = (y_step - context_height) / 2.0;
|
||
}
|
||
|
||
cairo_scale (cr, scale, scale);
|
||
|
||
cairo_translate (cr,
|
||
x * x_step + horizontal_offset,
|
||
y * y_step + vertical_offset);
|
||
|
||
if (priv->manual_scale != 1.0)
|
||
cairo_scale (cr, priv->manual_scale, priv->manual_scale);
|
||
}
|
||
|
||
if (priv->manual_number_up == 2 || priv->manual_number_up == 6)
|
||
{
|
||
x_scale = page_height / (columns * paper_width);
|
||
y_scale = page_width / (rows * paper_height);
|
||
|
||
scale = x_scale < y_scale ? x_scale : y_scale;
|
||
|
||
horizontal_offset = (paper_width * (x_scale / scale) - paper_width) / 2.0 * columns;
|
||
vertical_offset = (paper_height * (y_scale / scale) - paper_height) / 2.0 * rows;
|
||
|
||
if (!priv->use_full_page)
|
||
{
|
||
horizontal_offset -= right_margin;
|
||
vertical_offset += top_margin;
|
||
}
|
||
|
||
cairo_scale (cr, scale, scale);
|
||
|
||
cairo_translate (cr,
|
||
y * paper_height + vertical_offset,
|
||
(columns - x) * paper_width + horizontal_offset);
|
||
|
||
if (priv->manual_scale != 1.0)
|
||
cairo_scale (cr, priv->manual_scale, priv->manual_scale);
|
||
|
||
cairo_rotate (cr, - G_PI / 2);
|
||
}
|
||
}
|
||
|
||
priv->page_drawing_state = GTK_PAGE_DRAWING_STATE_DRAWING;
|
||
|
||
g_signal_emit (op, signals[DRAW_PAGE], 0,
|
||
print_context, page_nr);
|
||
|
||
if (priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_DRAWING)
|
||
gtk_print_operation_draw_page_finish (op);
|
||
}
|
||
|
||
static void
|
||
prepare_data (PrintPagesData *data)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (data->op);
|
||
GtkPageSetup *page_setup;
|
||
gboolean paginated = FALSE;
|
||
int i, j, counter;
|
||
|
||
if (priv->manual_collation)
|
||
{
|
||
data->uncollated_copies = priv->manual_num_copies;
|
||
data->collated_copies = 1;
|
||
}
|
||
else
|
||
{
|
||
data->uncollated_copies = 1;
|
||
data->collated_copies = priv->manual_num_copies;
|
||
}
|
||
|
||
if (!data->initialized)
|
||
{
|
||
data->initialized = TRUE;
|
||
page_setup = create_page_setup (data->op);
|
||
_gtk_print_context_set_page_setup (priv->print_context,
|
||
page_setup);
|
||
g_object_unref (page_setup);
|
||
|
||
g_signal_emit (data->op, signals[BEGIN_PRINT], 0, priv->print_context);
|
||
|
||
return;
|
||
}
|
||
|
||
g_signal_emit (data->op, signals[PAGINATE], 0, priv->print_context, &paginated);
|
||
if (!paginated)
|
||
return;
|
||
|
||
/* Initialize parts of PrintPagesData that depend on nr_of_pages
|
||
*/
|
||
if (priv->print_pages == GTK_PRINT_PAGES_RANGES)
|
||
{
|
||
if (priv->page_ranges == NULL)
|
||
{
|
||
g_warning ("no pages to print");
|
||
priv->cancelled = TRUE;
|
||
return;
|
||
}
|
||
data->ranges = priv->page_ranges;
|
||
data->num_ranges = priv->num_page_ranges;
|
||
for (i = 0; i < data->num_ranges; i++)
|
||
if (data->ranges[i].end == -1 ||
|
||
data->ranges[i].end >= priv->nr_of_pages)
|
||
data->ranges[i].end = priv->nr_of_pages - 1;
|
||
}
|
||
else if (priv->print_pages == GTK_PRINT_PAGES_CURRENT &&
|
||
priv->current_page != -1)
|
||
{
|
||
data->ranges = &data->one_range;
|
||
data->num_ranges = 1;
|
||
data->ranges[0].start = priv->current_page;
|
||
data->ranges[0].end = priv->current_page;
|
||
}
|
||
else
|
||
{
|
||
data->ranges = &data->one_range;
|
||
data->num_ranges = 1;
|
||
data->ranges[0].start = 0;
|
||
data->ranges[0].end = priv->nr_of_pages - 1;
|
||
}
|
||
|
||
clamp_page_ranges (data);
|
||
|
||
if (data->num_ranges < 1)
|
||
{
|
||
priv->cancelled = TRUE;
|
||
return;
|
||
}
|
||
|
||
priv->nr_of_pages_to_print = 0;
|
||
for (i = 0; i < data->num_ranges; i++)
|
||
priv->nr_of_pages_to_print += data->ranges[i].end - data->ranges[i].start + 1;
|
||
|
||
data->pages = g_new (int, priv->nr_of_pages_to_print);
|
||
counter = 0;
|
||
for (i = 0; i < data->num_ranges; i++)
|
||
for (j = data->ranges[i].start; j <= data->ranges[i].end; j++)
|
||
{
|
||
data->pages[counter] = j;
|
||
counter++;
|
||
}
|
||
|
||
data->total = -1;
|
||
data->collated = 0;
|
||
data->uncollated = 0;
|
||
|
||
if (priv->manual_number_up > 1)
|
||
{
|
||
if (priv->nr_of_pages_to_print % priv->manual_number_up == 0)
|
||
data->num_of_sheets = priv->nr_of_pages_to_print / priv->manual_number_up;
|
||
else
|
||
data->num_of_sheets = priv->nr_of_pages_to_print / priv->manual_number_up + 1;
|
||
}
|
||
else
|
||
data->num_of_sheets = priv->nr_of_pages_to_print;
|
||
|
||
if (priv->manual_reverse)
|
||
{
|
||
/* data->sheet is 0-based */
|
||
if (priv->manual_page_set == GTK_PAGE_SET_ODD)
|
||
data->sheet = (data->num_of_sheets - 1) - (data->num_of_sheets - 1) % 2;
|
||
else if (priv->manual_page_set == GTK_PAGE_SET_EVEN)
|
||
data->sheet = (data->num_of_sheets - 1) - (1 - (data->num_of_sheets - 1) % 2);
|
||
else
|
||
data->sheet = data->num_of_sheets - 1;
|
||
}
|
||
else
|
||
{
|
||
/* data->sheet is 0-based */
|
||
if (priv->manual_page_set == GTK_PAGE_SET_ODD)
|
||
data->sheet = 0;
|
||
else if (priv->manual_page_set == GTK_PAGE_SET_EVEN)
|
||
{
|
||
if (data->num_of_sheets > 1)
|
||
data->sheet = 1;
|
||
else
|
||
data->sheet = -1;
|
||
}
|
||
else
|
||
data->sheet = 0;
|
||
}
|
||
|
||
priv->page_position = data->sheet * priv->manual_number_up;
|
||
|
||
if (priv->page_position < 0 || priv->page_position >= priv->nr_of_pages_to_print)
|
||
{
|
||
priv->cancelled = TRUE;
|
||
return;
|
||
}
|
||
|
||
data->page = data->pages[priv->page_position];
|
||
data->first_position = priv->page_position;
|
||
data->first_sheet = data->sheet;
|
||
|
||
if (priv->manual_reverse)
|
||
{
|
||
if (priv->manual_page_set == GTK_PAGE_SET_ODD)
|
||
data->last_position = MIN (priv->manual_number_up - 1, priv->nr_of_pages_to_print - 1);
|
||
else if (priv->manual_page_set == GTK_PAGE_SET_EVEN)
|
||
data->last_position = MIN (2 * priv->manual_number_up - 1, priv->nr_of_pages_to_print - 1);
|
||
else
|
||
data->last_position = MIN (priv->manual_number_up - 1, priv->nr_of_pages_to_print - 1);
|
||
}
|
||
else
|
||
{
|
||
if (priv->manual_page_set == GTK_PAGE_SET_ODD)
|
||
data->last_position = MIN (((data->num_of_sheets - 1) - ((data->num_of_sheets - 1) % 2)) * priv->manual_number_up - 1, priv->nr_of_pages_to_print - 1);
|
||
else if (priv->manual_page_set == GTK_PAGE_SET_EVEN)
|
||
data->last_position = MIN (((data->num_of_sheets - 1) - (1 - (data->num_of_sheets - 1) % 2)) * priv->manual_number_up - 1, priv->nr_of_pages_to_print - 1);
|
||
else
|
||
data->last_position = priv->nr_of_pages_to_print - 1;
|
||
}
|
||
|
||
|
||
_gtk_print_operation_set_status (data->op,
|
||
GTK_PRINT_STATUS_GENERATING_DATA,
|
||
NULL);
|
||
}
|
||
|
||
static gboolean
|
||
print_pages_idle (gpointer user_data)
|
||
{
|
||
PrintPagesData *data = (PrintPagesData*)user_data;
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (data->op);
|
||
gboolean done = FALSE;
|
||
|
||
if (priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_READY)
|
||
{
|
||
if (priv->status == GTK_PRINT_STATUS_PREPARING)
|
||
{
|
||
prepare_data (data);
|
||
goto out;
|
||
}
|
||
|
||
if (data->is_preview && !priv->cancelled)
|
||
{
|
||
done = TRUE;
|
||
|
||
g_signal_emit_by_name (data->op, "ready", priv->print_context);
|
||
goto out;
|
||
}
|
||
|
||
increment_page_sequence (data);
|
||
|
||
if (!data->done)
|
||
common_render_page (data->op, data->page);
|
||
else
|
||
done = priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_READY;
|
||
|
||
out:
|
||
|
||
if (priv->cancelled)
|
||
{
|
||
_gtk_print_operation_set_status (data->op, GTK_PRINT_STATUS_FINISHED_ABORTED, NULL);
|
||
|
||
data->is_preview = FALSE;
|
||
done = TRUE;
|
||
}
|
||
|
||
if (done && !data->is_preview)
|
||
{
|
||
g_signal_emit (data->op, signals[END_PRINT], 0, priv->print_context);
|
||
priv->end_run (data->op, priv->is_sync, priv->cancelled);
|
||
}
|
||
|
||
update_progress (data);
|
||
}
|
||
|
||
return !done;
|
||
}
|
||
|
||
static void
|
||
handle_progress_response (GtkWidget *dialog,
|
||
int response,
|
||
gpointer data)
|
||
{
|
||
GtkPrintOperation *op = (GtkPrintOperation *)data;
|
||
|
||
gtk_widget_hide (dialog);
|
||
gtk_print_operation_cancel (op);
|
||
}
|
||
|
||
static gboolean
|
||
show_progress_timeout (PrintPagesData *data)
|
||
{
|
||
gtk_window_present (GTK_WINDOW (data->progress));
|
||
|
||
data->op->priv->show_progress_timeout_id = 0;
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
print_pages (GtkPrintOperation *op,
|
||
GtkWindow *parent,
|
||
gboolean do_print,
|
||
GtkPrintOperationResult result)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
PrintPagesData *data;
|
||
|
||
if (!do_print)
|
||
{
|
||
GtkPrintOperationResult tmp_result;
|
||
|
||
_gtk_print_operation_set_status (op, GTK_PRINT_STATUS_FINISHED_ABORTED, NULL);
|
||
|
||
if (priv->error)
|
||
tmp_result = GTK_PRINT_OPERATION_RESULT_ERROR;
|
||
else if (priv->cancelled)
|
||
tmp_result = GTK_PRINT_OPERATION_RESULT_CANCEL;
|
||
else
|
||
tmp_result = result;
|
||
|
||
g_signal_emit (op, signals[DONE], 0, tmp_result);
|
||
|
||
return;
|
||
}
|
||
|
||
_gtk_print_operation_set_status (op, GTK_PRINT_STATUS_PREPARING, NULL);
|
||
|
||
data = g_new0 (PrintPagesData, 1);
|
||
data->op = g_object_ref (op);
|
||
data->is_preview = (priv->action == GTK_PRINT_OPERATION_ACTION_PREVIEW);
|
||
|
||
if (priv->show_progress)
|
||
{
|
||
GtkWidget *progress;
|
||
|
||
progress = gtk_message_dialog_new (parent, 0,
|
||
GTK_MESSAGE_OTHER,
|
||
GTK_BUTTONS_CANCEL,
|
||
_("Preparing"));
|
||
g_signal_connect (progress, "response",
|
||
G_CALLBACK (handle_progress_response), op);
|
||
|
||
priv->show_progress_timeout_id =
|
||
g_timeout_add (SHOW_PROGRESS_TIME,
|
||
(GSourceFunc) show_progress_timeout,
|
||
data);
|
||
g_source_set_name_by_id (priv->show_progress_timeout_id, "[gtk] show_progress_timeout");
|
||
|
||
data->progress = progress;
|
||
}
|
||
|
||
if (data->is_preview)
|
||
{
|
||
gboolean handled;
|
||
|
||
g_signal_emit_by_name (op, "preview",
|
||
GTK_PRINT_OPERATION_PREVIEW (op),
|
||
priv->print_context,
|
||
parent,
|
||
&handled);
|
||
|
||
if (!handled)
|
||
{
|
||
GtkWidget *error_dialog;
|
||
|
||
error_dialog = gtk_message_dialog_new (parent,
|
||
GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
|
||
GTK_MESSAGE_ERROR,
|
||
GTK_BUTTONS_OK,
|
||
_("Error creating print preview"));
|
||
|
||
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (error_dialog),
|
||
_("The most probable reason is that a temporary file could not be created."));
|
||
|
||
if (parent && gtk_window_has_group (parent))
|
||
gtk_window_group_add_window (gtk_window_get_group (parent),
|
||
GTK_WINDOW (error_dialog));
|
||
|
||
g_signal_connect (error_dialog, "response",
|
||
G_CALLBACK (gtk_window_destroy), NULL);
|
||
|
||
gtk_widget_show (error_dialog);
|
||
|
||
print_pages_idle_done (data);
|
||
|
||
return;
|
||
}
|
||
|
||
if (gtk_print_context_get_cairo_context (priv->print_context) == NULL)
|
||
{
|
||
/* Programmer error */
|
||
g_error ("You must set a cairo context on the print context");
|
||
}
|
||
|
||
priv->start_page = preview_start_page;
|
||
priv->end_page = preview_end_page;
|
||
priv->end_run = preview_end_run;
|
||
|
||
priv->print_pages = gtk_print_settings_get_print_pages (priv->print_settings);
|
||
priv->page_ranges = gtk_print_settings_get_page_ranges (priv->print_settings,
|
||
&priv->num_page_ranges);
|
||
priv->manual_num_copies = 1;
|
||
priv->manual_collation = FALSE;
|
||
priv->manual_reverse = gtk_print_settings_get_reverse (priv->print_settings);
|
||
priv->manual_page_set = gtk_print_settings_get_page_set (priv->print_settings);
|
||
priv->manual_scale = gtk_print_settings_get_scale (priv->print_settings) / 100.0;
|
||
priv->manual_orientation = FALSE;
|
||
priv->manual_number_up = gtk_print_settings_get_number_up (priv->print_settings);
|
||
priv->manual_number_up_layout = gtk_print_settings_get_number_up_layout (priv->print_settings);
|
||
}
|
||
|
||
priv->print_pages_idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE + 10,
|
||
print_pages_idle,
|
||
data,
|
||
print_pages_idle_done);
|
||
g_source_set_name_by_id (priv->print_pages_idle_id, "[gtk] print_pages_idle");
|
||
|
||
/* Recursive main loop to make sure we don't exit on sync operations */
|
||
if (priv->is_sync)
|
||
{
|
||
priv->rloop = g_main_loop_new (NULL, FALSE);
|
||
|
||
g_object_ref (op);
|
||
|
||
g_main_loop_run (priv->rloop);
|
||
g_main_loop_unref (priv->rloop);
|
||
priv->rloop = NULL;
|
||
|
||
g_object_unref (op);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_error:
|
||
* @op: a #GtkPrintOperation
|
||
* @error: return location for the error
|
||
*
|
||
* Call this when the result of a print operation is
|
||
* %GTK_PRINT_OPERATION_RESULT_ERROR, either as returned by
|
||
* gtk_print_operation_run(), or in the #GtkPrintOperation::done signal
|
||
* handler. The returned #GError will contain more details on what went wrong.
|
||
**/
|
||
void
|
||
gtk_print_operation_get_error (GtkPrintOperation *op,
|
||
GError **error)
|
||
{
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
g_propagate_error (error, op->priv->error);
|
||
|
||
op->priv->error = NULL;
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_print_operation_run:
|
||
* @op: a #GtkPrintOperation
|
||
* @action: the action to start
|
||
* @parent: (allow-none): Transient parent of the dialog
|
||
* @error: (allow-none): Return location for errors, or %NULL
|
||
*
|
||
* 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
|
||
* #GtkPrintOperation::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 gtk_print_operation_set_allow_async() or set the
|
||
* #GtkPrintOperation:allow-async property the operation will run
|
||
* asynchronously if this is supported on the platform. The
|
||
* #GtkPrintOperation::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).
|
||
* |[<!-- language="C" -->
|
||
* if (settings != NULL)
|
||
* gtk_print_operation_set_print_settings (print, settings);
|
||
*
|
||
* if (page_setup != NULL)
|
||
* gtk_print_operation_set_default_page_setup (print, page_setup);
|
||
*
|
||
* g_signal_connect (print, "begin-print",
|
||
* G_CALLBACK (begin_print), &data);
|
||
* g_signal_connect (print, "draw-page",
|
||
* G_CALLBACK (draw_page), &data);
|
||
*
|
||
* res = gtk_print_operation_run (print,
|
||
* GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
|
||
* parent,
|
||
* &error);
|
||
*
|
||
* if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
|
||
* {
|
||
* error_dialog = gtk_message_dialog_new (GTK_WINDOW (parent),
|
||
* GTK_DIALOG_DESTROY_WITH_PARENT,
|
||
* GTK_MESSAGE_ERROR,
|
||
* GTK_BUTTONS_CLOSE,
|
||
* "Error printing file:\n%s",
|
||
* error->message);
|
||
* g_signal_connect (error_dialog, "response",
|
||
* G_CALLBACK (gtk_window_destroy), NULL);
|
||
* gtk_widget_show (error_dialog);
|
||
* g_error_free (error);
|
||
* }
|
||
* else 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));
|
||
* }
|
||
* ]|
|
||
*
|
||
* Note that gtk_print_operation_run() can only be called once on a
|
||
* given #GtkPrintOperation.
|
||
*
|
||
* Returns: the result of the print operation. A return value of
|
||
* %GTK_PRINT_OPERATION_RESULT_APPLY indicates that the printing was
|
||
* completed successfully. In this case, it is a good idea to obtain
|
||
* the used print settings with gtk_print_operation_get_print_settings()
|
||
* and store them for reuse with the next print operation. A value of
|
||
* %GTK_PRINT_OPERATION_RESULT_IN_PROGRESS means the operation is running
|
||
* asynchronously, and will emit the #GtkPrintOperation::done signal when
|
||
* done.
|
||
**/
|
||
GtkPrintOperationResult
|
||
gtk_print_operation_run (GtkPrintOperation *op,
|
||
GtkPrintOperationAction action,
|
||
GtkWindow *parent,
|
||
GError **error)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
GtkPrintOperationResult result;
|
||
GtkPageSetup *page_setup;
|
||
gboolean do_print;
|
||
gboolean run_print_pages;
|
||
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op),
|
||
GTK_PRINT_OPERATION_RESULT_ERROR);
|
||
g_return_val_if_fail (op->priv->status == GTK_PRINT_STATUS_INITIAL,
|
||
GTK_PRINT_OPERATION_RESULT_ERROR);
|
||
|
||
run_print_pages = TRUE;
|
||
do_print = FALSE;
|
||
priv->error = NULL;
|
||
priv->action = action;
|
||
|
||
if (priv->print_settings == NULL)
|
||
priv->print_settings = gtk_print_settings_new ();
|
||
|
||
if (action == GTK_PRINT_OPERATION_ACTION_EXPORT)
|
||
{
|
||
/* note: if you implement async EXPORT, update the docs
|
||
* docs for the allow-async property.
|
||
*/
|
||
priv->is_sync = TRUE;
|
||
g_return_val_if_fail (priv->export_filename != NULL, GTK_PRINT_OPERATION_RESULT_ERROR);
|
||
result = run_pdf (op, parent, &do_print);
|
||
}
|
||
else if (action == GTK_PRINT_OPERATION_ACTION_PREVIEW)
|
||
{
|
||
priv->is_sync = !priv->allow_async;
|
||
priv->print_context = _gtk_print_context_new (op);
|
||
page_setup = create_page_setup (op);
|
||
_gtk_print_context_set_page_setup (priv->print_context, page_setup);
|
||
g_object_unref (page_setup);
|
||
do_print = TRUE;
|
||
result = priv->is_sync ? GTK_PRINT_OPERATION_RESULT_APPLY : GTK_PRINT_OPERATION_RESULT_IN_PROGRESS;
|
||
}
|
||
#ifndef G_OS_WIN32
|
||
else if (priv->allow_async)
|
||
{
|
||
priv->is_sync = FALSE;
|
||
_gtk_print_operation_platform_backend_run_dialog_async (op,
|
||
action == GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
|
||
parent,
|
||
print_pages);
|
||
result = GTK_PRINT_OPERATION_RESULT_IN_PROGRESS;
|
||
run_print_pages = FALSE; /* print_pages is called asynchronously from dialog */
|
||
}
|
||
#endif
|
||
else
|
||
{
|
||
priv->is_sync = TRUE;
|
||
result = _gtk_print_operation_platform_backend_run_dialog (op,
|
||
action == GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
|
||
parent,
|
||
&do_print);
|
||
}
|
||
|
||
/* To ensure that priv is still valid after print_pages () */
|
||
g_object_ref (op);
|
||
|
||
if (run_print_pages)
|
||
print_pages (op, parent, do_print, result);
|
||
|
||
if (priv->error)
|
||
{
|
||
if (error)
|
||
*error = g_error_copy (priv->error);
|
||
result = GTK_PRINT_OPERATION_RESULT_ERROR;
|
||
}
|
||
else if (priv->cancelled)
|
||
result = GTK_PRINT_OPERATION_RESULT_CANCEL;
|
||
|
||
g_object_unref (op);
|
||
return result;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_cancel:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Cancels a running print operation. This function may
|
||
* be called from a #GtkPrintOperation::begin-print,
|
||
* #GtkPrintOperation::paginate or #GtkPrintOperation::draw-page
|
||
* signal handler to stop the currently running print
|
||
* operation.
|
||
*/
|
||
void
|
||
gtk_print_operation_cancel (GtkPrintOperation *op)
|
||
{
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
op->priv->cancelled = TRUE;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_support_selection:
|
||
* @op: a #GtkPrintOperation
|
||
* @support_selection: %TRUE to support selection
|
||
*
|
||
* Sets whether selection is supported by #GtkPrintOperation.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_support_selection (GtkPrintOperation *op,
|
||
gboolean support_selection)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
support_selection = support_selection != FALSE;
|
||
if (priv->support_selection != support_selection)
|
||
{
|
||
priv->support_selection = support_selection;
|
||
g_object_notify (G_OBJECT (op), "support-selection");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_support_selection:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Gets the value of #GtkPrintOperation:support-selection property.
|
||
*
|
||
* Returns: whether the application supports print of selection
|
||
*/
|
||
gboolean
|
||
gtk_print_operation_get_support_selection (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), FALSE);
|
||
|
||
return priv->support_selection;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_set_has_selection:
|
||
* @op: a #GtkPrintOperation
|
||
* @has_selection: %TRUE indicates that a selection exists
|
||
*
|
||
* Sets whether there is a selection to print.
|
||
*
|
||
* Application has to set number of pages to which the selection
|
||
* will draw by gtk_print_operation_set_n_pages() in a callback of
|
||
* #GtkPrintOperation::begin-print.
|
||
*/
|
||
void
|
||
gtk_print_operation_set_has_selection (GtkPrintOperation *op,
|
||
gboolean has_selection)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
||
|
||
has_selection = has_selection != FALSE;
|
||
if (priv->has_selection != has_selection)
|
||
{
|
||
priv->has_selection = has_selection;
|
||
g_object_notify (G_OBJECT (op), "has-selection");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_has_selection:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Gets the value of #GtkPrintOperation:has-selection property.
|
||
*
|
||
* Returns: whether there is a selection
|
||
*/
|
||
gboolean
|
||
gtk_print_operation_get_has_selection (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), FALSE);
|
||
|
||
return priv->has_selection;
|
||
}
|
||
|
||
/**
|
||
* gtk_print_operation_get_n_pages_to_print:
|
||
* @op: a #GtkPrintOperation
|
||
*
|
||
* Returns the number of pages that will be printed.
|
||
*
|
||
* Note that this value is set during print preparation phase
|
||
* (%GTK_PRINT_STATUS_PREPARING), so this function should never be
|
||
* called before the data generation phase (%GTK_PRINT_STATUS_GENERATING_DATA).
|
||
* You can connect to the #GtkPrintOperation::status-changed signal
|
||
* and call gtk_print_operation_get_n_pages_to_print() when
|
||
* print status is %GTK_PRINT_STATUS_GENERATING_DATA.
|
||
* This is typically used to track the progress of print operation.
|
||
*
|
||
* Returns: the number of pages that will be printed
|
||
**/
|
||
int
|
||
gtk_print_operation_get_n_pages_to_print (GtkPrintOperation *op)
|
||
{
|
||
GtkPrintOperationPrivate *priv = gtk_print_operation_get_instance_private (op);
|
||
|
||
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), -1);
|
||
|
||
return priv->nr_of_pages_to_print;
|
||
}
|