forked from AuroraMiddleware/gtk
8ff5d4ffc4
2008-12-19 Marek Kasik <mkasik@redhat.com> Bug 339318 - Allow page rendering to (optionally) happen in a thread * gtk/gtk.symbols: API change * doc/reference/gtk/gtk-sections.txt: API change * gtk/gtkprintoperation-private.h * gtk/gtkprintoperation.h * gtk/gtkprintoperation.c: Adds 2 new functions gtk_print_operation_set_defer_drawing() - 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. gtk_print_operation_draw_page_finish() - Signalize that drawing of particular page is complete. It is called after completion of page drawing (e.g. drawing in another thread). If 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. svn path=/trunk/; revision=21913
2668 lines
74 KiB
C
2668 lines
74 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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 <string.h>
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#include "gtkprintoperation-private.h"
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#include "gtkmarshalers.h"
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#include <cairo-pdf.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 "gtkalias.h"
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#define SHOW_PROGRESS_TIME 1200
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#define GTK_PRINT_OPERATION_GET_PRIVATE(obj)(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_PRINT_OPERATION, GtkPrintOperationPrivate))
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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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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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};
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static guint signals[LAST_SIGNAL] = { 0 };
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static int job_nr = 0;
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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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gint page_nr);
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G_DEFINE_TYPE_WITH_CODE (GtkPrintOperation, gtk_print_operation, G_TYPE_OBJECT,
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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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* Return value: The error quark used for #GtkPrintOperation errors.
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*
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* Since: 2.10
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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 *print_operation = GTK_PRINT_OPERATION (object);
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GtkPrintOperationPrivate *priv = print_operation->priv;
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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;
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const char *appname;
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priv = operation->priv = GTK_PRINT_OPERATION_GET_PRIVATE (operation);
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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->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->page_drawing_state = GTK_PAGE_DRAWING_STATE_READY;
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priv->rloop = NULL;
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priv->unit = GTK_UNIT_PIXEL;
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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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}
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static void
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preview_iface_render_page (GtkPrintOperationPreview *preview,
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gint 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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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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g_signal_emit (op, signals[DONE], 0, GTK_PRINT_OPERATION_RESULT_APPLY);
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}
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static gboolean
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preview_iface_is_selected (GtkPrintOperationPreview *preview,
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gint page_nr)
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{
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GtkPrintOperation *op;
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GtkPrintOperationPrivate *priv;
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int i;
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op = GTK_PRINT_OPERATION (preview);
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priv = op->priv;
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switch (priv->print_pages)
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{
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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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}
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return FALSE;
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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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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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}
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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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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_print_operation_get_property (GObject *object,
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guint prop_id,
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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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GtkPrintOperationPrivate *priv = op->priv;
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switch (prop_id)
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{
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case PROP_DEFAULT_PAGE_SETUP:
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g_value_set_object (value, priv->default_page_setup);
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break;
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case PROP_PRINT_SETTINGS:
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g_value_set_object (value, priv->print_settings);
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break;
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case PROP_JOB_NAME:
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g_value_set_string (value, priv->job_name);
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break;
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case PROP_N_PAGES:
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g_value_set_int (value, priv->nr_of_pages);
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break;
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case PROP_CURRENT_PAGE:
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g_value_set_int (value, priv->current_page);
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break;
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case PROP_USE_FULL_PAGE:
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g_value_set_boolean (value, priv->use_full_page);
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break;
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case PROP_TRACK_PRINT_STATUS:
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g_value_set_boolean (value, priv->track_print_status);
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break;
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case PROP_UNIT:
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g_value_set_enum (value, priv->unit);
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break;
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case PROP_ALLOW_ASYNC:
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g_value_set_boolean (value, priv->allow_async);
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break;
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case PROP_SHOW_PROGRESS:
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g_value_set_boolean (value, priv->show_progress);
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break;
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case PROP_EXPORT_FILENAME:
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g_value_set_string (value, priv->export_filename);
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break;
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case PROP_STATUS:
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g_value_set_enum (value, priv->status);
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break;
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case PROP_STATUS_STRING:
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g_value_set_string (value, priv->status_string);
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break;
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case PROP_CUSTOM_TAB_LABEL:
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g_value_set_string (value, priv->custom_tab_label);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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typedef struct
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{
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GtkPrintOperationPreview *preview;
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GtkPrintContext *print_context;
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GtkWindow *parent;
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cairo_surface_t *surface;
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gchar *filename;
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guint page_nr;
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gboolean wait;
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} PreviewOp;
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static void
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preview_print_idle_done (gpointer data)
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{
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GtkPrintOperation *op;
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PreviewOp *pop = (PreviewOp *) data;
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op = GTK_PRINT_OPERATION (pop->preview);
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cairo_surface_finish (pop->surface);
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/* Surface is destroyed in launch_preview */
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_gtk_print_operation_platform_backend_launch_preview (op,
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pop->surface,
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pop->parent,
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pop->filename);
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g_free (pop->filename);
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gtk_print_operation_preview_end_preview (pop->preview);
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g_object_unref (op);
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g_free (pop);
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}
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static gboolean
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preview_print_idle (gpointer data)
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{
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PreviewOp *pop;
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GtkPrintOperation *op;
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gboolean retval = TRUE;
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cairo_t *cr;
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GtkPrintOperationPrivate *priv;
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pop = (PreviewOp *) data;
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op = GTK_PRINT_OPERATION (pop->preview);
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priv = op->priv;
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if (priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_READY)
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{
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/* TODO: print out sheets not pages and follow ranges */
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if (pop->page_nr >= op->priv->nr_of_pages)
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retval = FALSE;
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if (pop->page_nr > 0)
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{
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cr = gtk_print_context_get_cairo_context (pop->print_context);
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_gtk_print_operation_platform_backend_preview_end_page (op, pop->surface, cr);
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}
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if (retval)
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{
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gtk_print_operation_preview_render_page (pop->preview, pop->page_nr);
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pop->page_nr++;
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}
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}
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return retval;
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}
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static void
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preview_got_page_size (GtkPrintOperationPreview *preview,
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GtkPrintContext *context,
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GtkPageSetup *page_setup,
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PreviewOp *pop)
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{
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GtkPrintOperation *op = GTK_PRINT_OPERATION (preview);
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cairo_t *cr;
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_gtk_print_operation_platform_backend_resize_preview_surface (op, page_setup, pop->surface);
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cr = gtk_print_context_get_cairo_context (pop->print_context);
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_gtk_print_operation_platform_backend_preview_start_page (op, pop->surface, cr);
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}
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static void
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preview_ready (GtkPrintOperationPreview *preview,
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GtkPrintContext *context,
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PreviewOp *pop)
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{
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pop->page_nr = 0;
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pop->print_context = context;
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g_object_ref (preview);
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gdk_threads_add_idle_full (G_PRIORITY_DEFAULT_IDLE + 10,
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preview_print_idle,
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pop,
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preview_print_idle_done);
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}
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|
|
|
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static gboolean
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gtk_print_operation_preview_handler (GtkPrintOperation *op,
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GtkPrintOperationPreview *preview,
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GtkPrintContext *context,
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GtkWindow *parent)
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{
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gdouble dpi_x, dpi_y;
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PreviewOp *pop;
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GtkPageSetup *page_setup;
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cairo_t *cr;
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pop = g_new0 (PreviewOp, 1);
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pop->filename = NULL;
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pop->preview = preview;
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pop->parent = parent;
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page_setup = gtk_print_context_get_page_setup (context);
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pop->surface =
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_gtk_print_operation_platform_backend_create_preview_surface (op,
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page_setup,
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&dpi_x, &dpi_y,
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&pop->filename);
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|
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if (pop->surface == NULL)
|
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{
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g_free (pop);
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return FALSE;
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}
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cr = cairo_create (pop->surface);
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gtk_print_context_set_cairo_context (op->priv->print_context, cr,
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dpi_x, dpi_y);
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cairo_destroy (cr);
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|
|
|
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 void
|
|
gtk_print_operation_done (GtkPrintOperation *operation,
|
|
GtkPrintOperationResult result)
|
|
{
|
|
GtkPrintOperationPrivate *priv = operation->priv;
|
|
|
|
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 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->done = gtk_print_operation_done;
|
|
|
|
g_type_class_add_private (gobject_class, sizeof (GtkPrintOperationPrivate));
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
signals[DONE] =
|
|
g_signal_new (I_("done"),
|
|
G_TYPE_FROM_CLASS (gobject_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GtkPrintOperationClass, done),
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__ENUM,
|
|
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().
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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,
|
|
g_cclosure_marshal_VOID__OBJECT,
|
|
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.
|
|
*
|
|
* Return value: %TRUE if pagination is complete
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
signals[PAGINATE] =
|
|
g_signal_new (I_("paginate"),
|
|
G_TYPE_FROM_CLASS (gobject_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GtkPrintOperationClass, paginate),
|
|
_gtk_boolean_handled_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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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().
|
|
* |[
|
|
* static void
|
|
* draw_page (GtkPrintOperation *operation,
|
|
* GtkPrintContext *context,
|
|
* gint page_nr,
|
|
* gpointer user_data)
|
|
* {
|
|
* cairo_t *cr;
|
|
* PangoLayout *layout;
|
|
* gdouble width, text_height;
|
|
* gint 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 = (gdouble)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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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,
|
|
g_cclosure_marshal_VOID__OBJECT,
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
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: A custom widget that gets embedded in the print dialog,
|
|
* or %NULL
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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::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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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,
|
|
g_cclosure_marshal_VOID__OBJECT,
|
|
G_TYPE_NONE, 1, GTK_TYPE_WIDGET);
|
|
|
|
/**
|
|
* GtkPrintOperation::preview:
|
|
* @operation: the #GtkPrintOperation on which the signal was emitted
|
|
* @preview: the #GtkPrintPreviewOperation for the current operation
|
|
* @context: the #GtkPrintContext that will be used
|
|
* @parent: 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
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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().
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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 <emphasis>must</emphasis> 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
/**
|
|
* 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).
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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_PIXEL,
|
|
GTK_PARAM_READWRITE));
|
|
|
|
|
|
/**
|
|
* GtkPrintOperation:show-progress:
|
|
*
|
|
* Determines whether to show a progress dialog during the
|
|
* print operation.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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));
|
|
|
|
}
|
|
|
|
/**
|
|
* gtk_print_operation_new:
|
|
*
|
|
* Creates a new #GtkPrintOperation.
|
|
*
|
|
* Returns: a new #GtkPrintOperation
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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: 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.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_print_operation_set_default_page_setup (GtkPrintOperation *op,
|
|
GtkPageSetup *default_page_setup)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
g_return_if_fail (default_page_setup == NULL ||
|
|
GTK_IS_PAGE_SETUP (default_page_setup));
|
|
|
|
priv = op->priv;
|
|
|
|
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: the default page setup
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
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: #GtkPrintSettings, or %NULL
|
|
*
|
|
* 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().
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_print_operation_set_print_settings (GtkPrintOperation *op,
|
|
GtkPrintSettings *print_settings)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
g_return_if_fail (print_settings == NULL ||
|
|
GTK_IS_PRINT_SETTINGS (print_settings));
|
|
|
|
priv = op->priv;
|
|
|
|
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.
|
|
*
|
|
* Return value: the current print settings of @op.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_print_operation_set_job_name (GtkPrintOperation *op,
|
|
const gchar *job_name)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
g_return_if_fail (job_name != NULL);
|
|
|
|
priv = op->priv;
|
|
|
|
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 <emphasis>must</emphasis> 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.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_print_operation_set_n_pages (GtkPrintOperation *op,
|
|
gint n_pages)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
g_return_if_fail (n_pages > 0);
|
|
|
|
priv = op->priv;
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_print_operation_set_current_page (GtkPrintOperation *op,
|
|
gint current_page)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
g_return_if_fail (current_page >= 0);
|
|
|
|
priv = op->priv;
|
|
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).
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_use_full_page (GtkPrintOperation *op,
|
|
gboolean full_page)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
full_page = full_page != FALSE;
|
|
|
|
priv = op->priv;
|
|
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_unit (GtkPrintOperation *op,
|
|
GtkUnit unit)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
priv = op->priv;
|
|
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_track_print_status (GtkPrintOperation *op,
|
|
gboolean track_status)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
priv = op->priv;
|
|
|
|
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 gchar *string)
|
|
{
|
|
GtkPrintOperationPrivate *priv = op->priv;
|
|
static const gchar *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 < 0 || 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().
|
|
*
|
|
* Return value: the status of the print operation
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
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.
|
|
*
|
|
* Return value: a string representation of the status
|
|
* of the print operation
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
G_CONST_RETURN gchar *
|
|
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.
|
|
*
|
|
* Return value: %TRUE, if the print operation is finished.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
gboolean
|
|
gtk_print_operation_is_finished (GtkPrintOperation *op)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), TRUE);
|
|
|
|
priv = op->priv;
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_show_progress (GtkPrintOperation *op,
|
|
gboolean show_progress)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
priv = op->priv;
|
|
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_allow_async (GtkPrintOperation *op,
|
|
gboolean allow_async)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
priv = op->priv;
|
|
|
|
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: the label to use, or %NULL to use the default label
|
|
*
|
|
* Sets the label for the tab holding custom widgets.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_custom_tab_label (GtkPrintOperation *op,
|
|
const gchar *label)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
priv = op->priv;
|
|
|
|
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: 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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_set_export_filename (GtkPrintOperation *op,
|
|
const gchar *filename)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
priv = op->priv;
|
|
|
|
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 = op->priv;
|
|
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)
|
|
{
|
|
GtkPaperSize *paper_size;
|
|
cairo_surface_t *surface = op->priv->platform_data;
|
|
gdouble w, h;
|
|
|
|
paper_size = gtk_page_setup_get_paper_size (page_setup);
|
|
|
|
w = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
|
|
h = gtk_paper_size_get_height (paper_size, 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);
|
|
cairo_show_page (cr);
|
|
}
|
|
|
|
static void
|
|
pdf_end_run (GtkPrintOperation *op,
|
|
gboolean wait,
|
|
gboolean cancelled)
|
|
{
|
|
GtkPrintOperationPrivate *priv = op->priv;
|
|
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 = op->priv;
|
|
GtkPageSetup *page_setup;
|
|
cairo_surface_t *surface;
|
|
cairo_t *cr;
|
|
gdouble 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 = TRUE;
|
|
|
|
*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;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GtkPrintOperation *op;
|
|
gint uncollated_copies;
|
|
gint collated_copies;
|
|
gint uncollated, collated, total;
|
|
|
|
gint range, num_ranges;
|
|
GtkPageRange *ranges;
|
|
GtkPageRange one_range;
|
|
|
|
gint page, start, end, inc;
|
|
|
|
GtkWidget *progress;
|
|
|
|
gboolean initialized;
|
|
gboolean is_preview;
|
|
} PrintPagesData;
|
|
|
|
static void
|
|
find_range (PrintPagesData *data)
|
|
{
|
|
GtkPageRange *range;
|
|
|
|
range = &data->ranges[data->range];
|
|
|
|
if (data->inc < 0)
|
|
{
|
|
data->start = range->end;
|
|
data->end = range->start - 1;
|
|
}
|
|
else
|
|
{
|
|
data->start = range->start;
|
|
data->end = range->end + 1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
clamp_page_ranges (PrintPagesData *data)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
gint num_of_correct_ranges;
|
|
gint i;
|
|
|
|
priv = data->op->priv;
|
|
|
|
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 gboolean
|
|
increment_page_sequence (PrintPagesData *data)
|
|
{
|
|
GtkPrintOperationPrivate *priv = data->op->priv;
|
|
|
|
do {
|
|
data->page += data->inc;
|
|
if (data->page == data->end)
|
|
{
|
|
data->range += data->inc;
|
|
if (data->range == -1 || data->range == data->num_ranges)
|
|
{
|
|
data->uncollated++;
|
|
if (data->uncollated == data->uncollated_copies)
|
|
return FALSE;
|
|
|
|
data->range = data->inc < 0 ? data->num_ranges - 1 : 0;
|
|
}
|
|
find_range (data);
|
|
data->page = data->start;
|
|
}
|
|
}
|
|
while ((priv->manual_page_set == GTK_PAGE_SET_EVEN && data->page % 2 == 0) ||
|
|
(priv->manual_page_set == GTK_PAGE_SET_ODD && data->page % 2 == 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
print_pages_idle_done (gpointer user_data)
|
|
{
|
|
PrintPagesData *data;
|
|
GtkPrintOperationPrivate *priv;
|
|
|
|
data = (PrintPagesData*)user_data;
|
|
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_widget_destroy (data->progress);
|
|
|
|
if (priv->rloop && !data->is_preview)
|
|
g_main_loop_quit (priv->rloop);
|
|
|
|
if (!data->is_preview)
|
|
g_signal_emit (data->op, signals[DONE], 0,
|
|
priv->cancelled ?
|
|
GTK_PRINT_OPERATION_RESULT_CANCEL :
|
|
GTK_PRINT_OPERATION_RESULT_APPLY);
|
|
|
|
g_object_unref (data->op);
|
|
g_free (data);
|
|
}
|
|
|
|
static void
|
|
update_progress (PrintPagesData *data)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
gchar *text = NULL;
|
|
|
|
priv = data->op->priv;
|
|
|
|
if (data->progress)
|
|
{
|
|
if (priv->status == GTK_PRINT_STATUS_PREPARING)
|
|
{
|
|
if (priv->nr_of_pages > 0)
|
|
text = g_strdup_printf (_("Preparing %d"), priv->nr_of_pages);
|
|
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.
|
|
*
|
|
* Since: 2.16
|
|
**/
|
|
void
|
|
gtk_print_operation_set_defer_drawing (GtkPrintOperation *op)
|
|
{
|
|
GtkPrintOperationPrivate *priv = op->priv;
|
|
|
|
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_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.
|
|
*
|
|
* Since: 2.16
|
|
**/
|
|
void
|
|
gtk_print_operation_draw_page_finish (GtkPrintOperation *op)
|
|
{
|
|
GtkPrintOperationPrivate *priv = op->priv;
|
|
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,
|
|
gint page_nr)
|
|
{
|
|
GtkPrintOperationPrivate *priv = op->priv;
|
|
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_scale != 1.0)
|
|
cairo_scale (cr,
|
|
priv->manual_scale,
|
|
priv->manual_scale);
|
|
|
|
if (priv->manual_orientation)
|
|
_gtk_print_context_rotate_according_to_orientation (print_context);
|
|
|
|
if (!priv->use_full_page)
|
|
_gtk_print_context_translate_into_margin (print_context);
|
|
|
|
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);
|
|
}
|
|
|
|
void
|
|
prepare_data (PrintPagesData *data)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
GtkPageSetup *page_setup;
|
|
gint i;
|
|
|
|
priv = data->op->priv;
|
|
|
|
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);
|
|
|
|
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;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (g_signal_has_handler_pending (data->op, signals[PAGINATE], 0, FALSE))
|
|
{
|
|
gboolean paginated = FALSE;
|
|
|
|
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;
|
|
}
|
|
|
|
if (priv->manual_reverse)
|
|
{
|
|
data->range = data->num_ranges - 1;
|
|
data->inc = -1;
|
|
}
|
|
else
|
|
{
|
|
data->range = 0;
|
|
data->inc = 1;
|
|
}
|
|
find_range (data);
|
|
|
|
/* go back one page, since we preincrement below */
|
|
data->page = data->start - data->inc;
|
|
data->collated = data->collated_copies - 1;
|
|
|
|
_gtk_print_operation_set_status (data->op,
|
|
GTK_PRINT_STATUS_GENERATING_DATA,
|
|
NULL);
|
|
}
|
|
|
|
static gboolean
|
|
print_pages_idle (gpointer user_data)
|
|
{
|
|
PrintPagesData *data;
|
|
GtkPrintOperationPrivate *priv;
|
|
gboolean done = FALSE;
|
|
|
|
data = (PrintPagesData*)user_data;
|
|
priv = data->op->priv;
|
|
|
|
if (priv->page_drawing_state == GTK_PAGE_DRAWING_STATE_READY)
|
|
{
|
|
if (priv->status == GTK_PRINT_STATUS_PREPARING)
|
|
{
|
|
prepare_data (data);
|
|
goto out;
|
|
}
|
|
|
|
data->total++;
|
|
data->collated++;
|
|
if (data->collated == data->collated_copies)
|
|
{
|
|
data->collated = 0;
|
|
if (!increment_page_sequence (data))
|
|
{
|
|
done = TRUE;
|
|
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (data->is_preview && !priv->cancelled)
|
|
{
|
|
done = TRUE;
|
|
|
|
g_signal_emit_by_name (data->op, "ready", priv->print_context);
|
|
goto out;
|
|
}
|
|
|
|
common_render_page (data->op, data->page);
|
|
|
|
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,
|
|
gint 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 = op->priv;
|
|
PrintPagesData *data;
|
|
|
|
if (!do_print)
|
|
{
|
|
_gtk_print_operation_set_status (op, GTK_PRINT_STATUS_FINISHED_ABORTED, NULL);
|
|
g_signal_emit (op, signals[DONE], 0, 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 =
|
|
gdk_threads_add_timeout (SHOW_PROGRESS_TIME,
|
|
(GSourceFunc)show_progress_timeout,
|
|
data);
|
|
|
|
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 && parent->group)
|
|
gtk_window_group_add_window (parent->group, GTK_WINDOW (error_dialog));
|
|
|
|
g_signal_connect (error_dialog, "response",
|
|
G_CALLBACK (gtk_widget_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 = FALSE;
|
|
priv->manual_page_set = GTK_PAGE_SET_ALL;
|
|
priv->manual_scale = 1.0;
|
|
priv->manual_orientation = TRUE;
|
|
}
|
|
|
|
priv->print_pages_idle_id = gdk_threads_add_idle_full (G_PRIORITY_DEFAULT_IDLE + 10,
|
|
print_pages_idle,
|
|
data,
|
|
print_pages_idle_done);
|
|
|
|
/* 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);
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_loop_run (priv->rloop);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
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: Transient parent of the dialog, or %NULL
|
|
* @error: 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).
|
|
* |[
|
|
* 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_widget_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.
|
|
*
|
|
* Return value: 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.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
GtkPrintOperationResult
|
|
gtk_print_operation_run (GtkPrintOperation *op,
|
|
GtkPrintOperationAction action,
|
|
GtkWindow *parent,
|
|
GError **error)
|
|
{
|
|
GtkPrintOperationPrivate *priv;
|
|
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);
|
|
priv = op->priv;
|
|
|
|
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);
|
|
}
|
|
|
|
if (run_print_pages)
|
|
print_pages (op, parent, do_print, result);
|
|
|
|
if (priv->error && error)
|
|
*error = g_error_copy (priv->error);
|
|
|
|
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.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gtk_print_operation_cancel (GtkPrintOperation *op)
|
|
{
|
|
g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
|
|
|
|
op->priv->cancelled = TRUE;
|
|
}
|
|
|
|
|
|
|
|
#define __GTK_PRINT_OPERATION_C__
|
|
#include "gtkaliasdef.c"
|