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gtk2/gtk/gtkprintjob.c

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/* GtkPrintJob
* Copyright (C) 2006 John (J5) Palmieri <johnp@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <glib/gstdio.h>
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtkprintjob.h"
#include "gtkprinter.h"
#include "gtkprinter-private.h"
#include "gtkprintbackend.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
struct _GtkPrintJobPrivate
{
gchar *title;
GIOChannel *spool_io;
cairo_surface_t *surface;
GtkPrintStatus status;
GtkPrintBackend *backend;
GtkPrinter *printer;
GtkPrintSettings *settings;
GtkPageSetup *page_setup;
guint printer_set : 1;
guint page_setup_set : 1;
guint settings_set : 1;
guint track_print_status : 1;
};
#define GTK_PRINT_JOB_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_PRINT_JOB, GtkPrintJobPrivate))
static void gtk_print_job_finalize (GObject *object);
static void gtk_print_job_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_print_job_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GObject* gtk_print_job_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params);
enum {
STATUS_CHANGED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_TITLE,
PROP_PRINTER,
PROP_PAGE_SETUP,
PROP_SETTINGS,
PROP_TRACK_PRINT_STATUS
};
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (GtkPrintJob, gtk_print_job, G_TYPE_OBJECT)
static void
gtk_print_job_class_init (GtkPrintJobClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass *) class;
object_class->finalize = gtk_print_job_finalize;
object_class->constructor = gtk_print_job_constructor;
object_class->set_property = gtk_print_job_set_property;
object_class->get_property = gtk_print_job_get_property;
g_type_class_add_private (class, sizeof (GtkPrintJobPrivate));
g_object_class_install_property (object_class,
PROP_TITLE,
g_param_spec_string ("title",
P_("Title"),
P_("Title of the print job"),
NULL,
GTK_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class,
PROP_PRINTER,
g_param_spec_object ("printer",
P_("Printer"),
P_("Printer to print the job to"),
GTK_TYPE_PRINTER,
GTK_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class,
PROP_SETTINGS,
g_param_spec_object ("settings",
P_("Settings"),
P_("Printer settings"),
GTK_TYPE_PRINT_SETTINGS,
GTK_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class,
PROP_PAGE_SETUP,
g_param_spec_object ("page-setup",
P_("Page Setup"),
P_("Page Setup"),
GTK_TYPE_PAGE_SETUP,
GTK_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class,
PROP_TRACK_PRINT_STATUS,
g_param_spec_boolean ("track-print-status",
P_("Track Print Status"),
P_("TRUE if the print job will continue to emit "
"status-changed signals after the print data "
"has been sent to the printer or print server."),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkPrintJob::status-changed:
* @job: the #GtkPrintJob object on which the signal was emitted
*
* Gets emitted when the status of a job changes. The signal handler
* can use gtk_print_job_get_status() to obtain the new 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 (GtkPrintJobClass, status_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
gtk_print_job_init (GtkPrintJob *job)
{
GtkPrintJobPrivate *priv;
priv = job->priv = GTK_PRINT_JOB_GET_PRIVATE (job);
priv->spool_io = NULL;
priv->title = g_strdup ("");
priv->surface = NULL;
priv->backend = NULL;
priv->printer = NULL;
priv->printer_set = FALSE;
priv->settings_set = FALSE;
priv->page_setup_set = FALSE;
priv->status = GTK_PRINT_STATUS_INITIAL;
priv->track_print_status = FALSE;
job->print_pages = GTK_PRINT_PAGES_ALL;
job->page_ranges = NULL;
job->num_page_ranges = 0;
job->collate = FALSE;
job->reverse = FALSE;
job->num_copies = 1;
job->scale = 1.0;
job->page_set = GTK_PAGE_SET_ALL;
job->rotate_to_orientation = FALSE;
job->number_up = 1;
job->number_up_layout = GTK_NUMBER_UP_LAYOUT_LEFT_TO_RIGHT_TOP_TO_BOTTOM;
}
static GObject*
gtk_print_job_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GtkPrintJob *job;
GtkPrintJobPrivate *priv;
GObject *object;
object =
G_OBJECT_CLASS (gtk_print_job_parent_class)->constructor (type,
n_construct_properties,
construct_params);
job = GTK_PRINT_JOB (object);
priv = job->priv;
g_assert (priv->printer_set &&
priv->settings_set &&
priv->page_setup_set);
_gtk_printer_prepare_for_print (priv->printer,
job,
priv->settings,
priv->page_setup);
return object;
}
static void
gtk_print_job_finalize (GObject *object)
{
GtkPrintJob *job = GTK_PRINT_JOB (object);
GtkPrintJobPrivate *priv = job->priv;
if (priv->spool_io != NULL)
{
g_io_channel_unref (priv->spool_io);
priv->spool_io = NULL;
}
if (priv->backend)
g_object_unref (priv->backend);
if (priv->printer)
g_object_unref (priv->printer);
if (priv->surface)
cairo_surface_destroy (priv->surface);
if (priv->settings)
g_object_unref (priv->settings);
if (priv->page_setup)
g_object_unref (priv->page_setup);
g_free (job->page_ranges);
job->page_ranges = NULL;
g_free (priv->title);
priv->title = NULL;
G_OBJECT_CLASS (gtk_print_job_parent_class)->finalize (object);
}
/**
* gtk_print_job_new:
* @title: the job title
* @printer: a #GtkPrinter
* @settings: a #GtkPrintSettings
* @page_setup: a #GtkPageSetup
*
* Creates a new #GtkPrintJob.
*
* Return value: a new #GtkPrintJob
*
* Since: 2.10
**/
GtkPrintJob *
gtk_print_job_new (const gchar *title,
GtkPrinter *printer,
GtkPrintSettings *settings,
GtkPageSetup *page_setup)
{
GObject *result;
result = g_object_new (GTK_TYPE_PRINT_JOB,
"title", title,
"printer", printer,
"settings", settings,
"page-setup", page_setup,
NULL);
return (GtkPrintJob *) result;
}
/**
* gtk_print_job_get_settings:
* @job: a #GtkPrintJob
*
* Gets the #GtkPrintSettings of the print job.
*
* Return value: the settings of @job
*
* Since: 2.10
*/
GtkPrintSettings *
gtk_print_job_get_settings (GtkPrintJob *job)
{
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), NULL);
return job->priv->settings;
}
/**
* gtk_print_job_get_printer:
* @job: a #GtkPrintJob
*
* Gets the #GtkPrinter of the print job.
*
* Return value: the printer of @job
*
* Since: 2.10
*/
GtkPrinter *
gtk_print_job_get_printer (GtkPrintJob *job)
{
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), NULL);
return job->priv->printer;
}
/**
* gtk_print_job_get_title:
* @job: a #GtkPrintJob
*
* Gets the job title.
*
* Return value: the title of @job
*
* Since: 2.10
*/
G_CONST_RETURN gchar *
gtk_print_job_get_title (GtkPrintJob *job)
{
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), NULL);
return job->priv->title;
}
/**
* gtk_print_job_get_status:
* @job: a #GtkPrintJob
*
* Gets the status of the print job.
*
* Return value: the status of @job
*
* Since: 2.10
*/
GtkPrintStatus
gtk_print_job_get_status (GtkPrintJob *job)
{
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), GTK_PRINT_STATUS_FINISHED);
return job->priv->status;
}
void
gtk_print_job_set_status (GtkPrintJob *job,
GtkPrintStatus status)
{
GtkPrintJobPrivate *priv;
g_return_if_fail (GTK_IS_PRINT_JOB (job));
priv = job->priv;
if (priv->status == status)
return;
priv->status = status;
g_signal_emit (job, signals[STATUS_CHANGED], 0);
}
/**
* gtk_print_job_set_source_file:
* @job: a #GtkPrintJob
* @filename: the file to be printed
* @error: return location for errors
*
* Make the #GtkPrintJob send an existing document to the
* printing system. The file can be in any format understood
* by the platforms printing system (typically PostScript,
* but on many platforms PDF may work too). See
* gtk_printer_accepts_pdf() and gtk_printer_accepts_ps().
*
* Returns: %FALSE if an error occurred
*
* Since: 2.10
**/
gboolean
gtk_print_job_set_source_file (GtkPrintJob *job,
const gchar *filename,
GError **error)
{
GtkPrintJobPrivate *priv;
GError *tmp_error;
tmp_error = NULL;
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), FALSE);
priv = job->priv;
priv->spool_io = g_io_channel_new_file (filename, "r", &tmp_error);
if (tmp_error == NULL)
g_io_channel_set_encoding (priv->spool_io, NULL, &tmp_error);
if (tmp_error != NULL)
{
g_propagate_error (error, tmp_error);
return FALSE;
}
return TRUE;
}
/**
* gtk_print_job_get_surface:
* @job: a #GtkPrintJob
* @error: (allow-none): return location for errors, or %NULL
*
* Gets a cairo surface onto which the pages of
* the print job should be rendered.
*
* Return value: the cairo surface of @job
*
* Since: 2.10
**/
cairo_surface_t *
gtk_print_job_get_surface (GtkPrintJob *job,
GError **error)
{
GtkPrintJobPrivate *priv;
gchar *filename;
gdouble width, height;
GtkPaperSize *paper_size;
int fd;
GError *tmp_error;
tmp_error = NULL;
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), NULL);
priv = job->priv;
if (priv->surface)
return priv->surface;
g_return_val_if_fail (priv->spool_io == NULL, NULL);
fd = g_file_open_tmp ("gtkprint_XXXXXX",
&filename,
&tmp_error);
if (fd == -1)
{
g_free (filename);
g_propagate_error (error, tmp_error);
return NULL;
}
fchmod (fd, S_IRUSR | S_IWUSR);
#ifdef G_ENABLE_DEBUG
/* If we are debugging printing don't delete the tmp files */
if (!(gtk_debug_flags & GTK_DEBUG_PRINTING))
#endif /* G_ENABLE_DEBUG */
g_unlink (filename);
g_free (filename);
paper_size = gtk_page_setup_get_paper_size (priv->page_setup);
width = gtk_paper_size_get_width (paper_size, GTK_UNIT_POINTS);
height = gtk_paper_size_get_height (paper_size, GTK_UNIT_POINTS);
priv->spool_io = g_io_channel_unix_new (fd);
g_io_channel_set_close_on_unref (priv->spool_io, TRUE);
g_io_channel_set_encoding (priv->spool_io, NULL, &tmp_error);
if (tmp_error != NULL)
{
g_io_channel_unref (priv->spool_io);
priv->spool_io = NULL;
g_propagate_error (error, tmp_error);
return NULL;
}
priv->surface = _gtk_printer_create_cairo_surface (priv->printer,
priv->settings,
width, height,
priv->spool_io);
return priv->surface;
}
/**
* gtk_print_job_set_track_print_status:
* @job: a #GtkPrintJob
* @track_status: %TRUE to track status after printing
*
* If track_status is %TRUE, the print job 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_job_set_track_print_status (GtkPrintJob *job,
gboolean track_status)
{
GtkPrintJobPrivate *priv;
g_return_if_fail (GTK_IS_PRINT_JOB (job));
priv = job->priv;
track_status = track_status != FALSE;
if (priv->track_print_status != track_status)
{
priv->track_print_status = track_status;
g_object_notify (G_OBJECT (job), "track-print-status");
}
}
/**
* gtk_print_job_get_track_print_status:
* @job: a #GtkPrintJob
*
* Returns wheter jobs will be tracked after printing.
* For details, see gtk_print_job_set_track_print_status().
*
* Return value: %TRUE if print job status will be reported after printing
*
* Since: 2.10
*/
gboolean
gtk_print_job_get_track_print_status (GtkPrintJob *job)
{
GtkPrintJobPrivate *priv;
g_return_val_if_fail (GTK_IS_PRINT_JOB (job), FALSE);
priv = job->priv;
return priv->track_print_status;
}
static void
gtk_print_job_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkPrintJob *job = GTK_PRINT_JOB (object);
GtkPrintJobPrivate *priv = job->priv;
GtkPrintSettings *settings;
switch (prop_id)
{
case PROP_TITLE:
g_free (priv->title);
priv->title = g_value_dup_string (value);
break;
case PROP_PRINTER:
priv->printer = GTK_PRINTER (g_value_dup_object (value));
priv->printer_set = TRUE;
priv->backend = g_object_ref (gtk_printer_get_backend (priv->printer));
break;
case PROP_PAGE_SETUP:
priv->page_setup = GTK_PAGE_SETUP (g_value_dup_object (value));
priv->page_setup_set = TRUE;
break;
case PROP_SETTINGS:
/* We save a copy of the settings since we modify
* if when preparing the printer job. */
settings = GTK_PRINT_SETTINGS (g_value_get_object (value));
priv->settings = gtk_print_settings_copy (settings);
priv->settings_set = TRUE;
break;
case PROP_TRACK_PRINT_STATUS:
gtk_print_job_set_track_print_status (job, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_print_job_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkPrintJob *job = GTK_PRINT_JOB (object);
GtkPrintJobPrivate *priv = job->priv;
switch (prop_id)
{
case PROP_TITLE:
g_value_set_string (value, priv->title);
break;
case PROP_PRINTER:
g_value_set_object (value, priv->printer);
break;
case PROP_SETTINGS:
g_value_set_object (value, priv->settings);
break;
case PROP_PAGE_SETUP:
g_value_set_object (value, priv->page_setup);
break;
case PROP_TRACK_PRINT_STATUS:
g_value_set_boolean (value, priv->track_print_status);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/**
* gtk_print_job_send:
* @job: a GtkPrintJob
* @callback: function to call when the job completes or an error occurs
* @user_data: user data that gets passed to @callback
* @dnotify: destroy notify for @user_data
*
* Sends the print job off to the printer.
*
* Since: 2.10
**/
void
gtk_print_job_send (GtkPrintJob *job,
GtkPrintJobCompleteFunc callback,
gpointer user_data,
GDestroyNotify dnotify)
{
GtkPrintJobPrivate *priv;
g_return_if_fail (GTK_IS_PRINT_JOB (job));
priv = job->priv;
g_return_if_fail (priv->spool_io != NULL);
gtk_print_job_set_status (job, GTK_PRINT_STATUS_SENDING_DATA);
g_io_channel_seek_position (priv->spool_io, 0, G_SEEK_SET, NULL);
gtk_print_backend_print_stream (priv->backend, job,
priv->spool_io,
callback, user_data, dnotify);
}
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