595 lines
16 KiB
C
595 lines
16 KiB
C
/* GTK - The GIMP Toolkit
|
|
* gtkprintbackendpdf.c: Test implementation of GtkPrintBackend
|
|
* for printing to a test
|
|
* Copyright (C) 2007, Red Hat, Inc.
|
|
*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <errno.h>
|
|
#include <cairo.h>
|
|
#include <cairo-pdf.h>
|
|
#include <cairo-ps.h>
|
|
|
|
#include <glib/gi18n-lib.h>
|
|
|
|
#include <gtk/gtkprintbackend.h>
|
|
#include <gtk/gtkunixprint.h>
|
|
#include <gtk/gtkprinter-private.h>
|
|
|
|
#include "gtkprintbackendtest.h"
|
|
|
|
|
|
typedef struct _GtkPrintBackendTestClass GtkPrintBackendTestClass;
|
|
|
|
#define GTK_PRINT_BACKEND_TEST_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PRINT_BACKEND_TEST, GtkPrintBackendTestClass))
|
|
#define GTK_IS_PRINT_BACKEND_TEST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PRINT_BACKEND_TEST))
|
|
#define GTK_PRINT_BACKENDTEST_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PRINT_BACKEND_TEST, GtkPrintBackendTestClass))
|
|
|
|
#define _STREAM_MAX_CHUNK_SIZE 8192
|
|
|
|
static GType print_backend_test_type = 0;
|
|
|
|
struct _GtkPrintBackendTestClass
|
|
{
|
|
GtkPrintBackendClass parent_class;
|
|
};
|
|
|
|
struct _GtkPrintBackendTest
|
|
{
|
|
GtkPrintBackend parent_instance;
|
|
};
|
|
|
|
typedef enum
|
|
{
|
|
FORMAT_PDF,
|
|
FORMAT_PS,
|
|
N_FORMATS
|
|
} OutputFormat;
|
|
|
|
static const gchar* formats[N_FORMATS] =
|
|
{
|
|
"pdf",
|
|
"ps"
|
|
};
|
|
|
|
static GObjectClass *backend_parent_class;
|
|
|
|
static void gtk_print_backend_test_class_init (GtkPrintBackendTestClass *class);
|
|
static void gtk_print_backend_test_init (GtkPrintBackendTest *impl);
|
|
static void test_printer_get_settings_from_options (GtkPrinter *printer,
|
|
GtkPrinterOptionSet *options,
|
|
GtkPrintSettings *settings);
|
|
static GtkPrinterOptionSet *test_printer_get_options (GtkPrinter *printer,
|
|
GtkPrintSettings *settings,
|
|
GtkPageSetup *page_setup,
|
|
GtkPrintCapabilities capabilities);
|
|
static void test_printer_prepare_for_print (GtkPrinter *printer,
|
|
GtkPrintJob *print_job,
|
|
GtkPrintSettings *settings,
|
|
GtkPageSetup *page_setup);
|
|
static void gtk_print_backend_test_print_stream (GtkPrintBackend *print_backend,
|
|
GtkPrintJob *job,
|
|
GIOChannel *data_io,
|
|
GtkPrintJobCompleteFunc callback,
|
|
gpointer user_data,
|
|
GDestroyNotify dnotify);
|
|
static cairo_surface_t * test_printer_create_cairo_surface (GtkPrinter *printer,
|
|
GtkPrintSettings *settings,
|
|
gdouble width,
|
|
gdouble height,
|
|
GIOChannel *cache_io);
|
|
|
|
static void test_printer_request_details (GtkPrinter *printer);
|
|
|
|
static void
|
|
gtk_print_backend_test_register_type (GTypeModule *module)
|
|
{
|
|
const GTypeInfo print_backend_test_info =
|
|
{
|
|
sizeof (GtkPrintBackendTestClass),
|
|
NULL, /* base_init */
|
|
NULL, /* base_finalize */
|
|
(GClassInitFunc) gtk_print_backend_test_class_init,
|
|
NULL, /* class_finalize */
|
|
NULL, /* class_data */
|
|
sizeof (GtkPrintBackendTest),
|
|
0, /* n_preallocs */
|
|
(GInstanceInitFunc) gtk_print_backend_test_init,
|
|
};
|
|
|
|
print_backend_test_type = g_type_module_register_type (module,
|
|
GTK_TYPE_PRINT_BACKEND,
|
|
"GtkPrintBackendTest",
|
|
&print_backend_test_info, 0);
|
|
}
|
|
|
|
G_MODULE_EXPORT void
|
|
pb_module_init (GTypeModule *module)
|
|
{
|
|
gtk_print_backend_test_register_type (module);
|
|
}
|
|
|
|
G_MODULE_EXPORT void
|
|
pb_module_exit (void)
|
|
{
|
|
|
|
}
|
|
|
|
G_MODULE_EXPORT GtkPrintBackend *
|
|
pb_module_create (void)
|
|
{
|
|
return gtk_print_backend_test_new ();
|
|
}
|
|
|
|
/*
|
|
* GtkPrintBackendTest
|
|
*/
|
|
GType
|
|
gtk_print_backend_test_get_type (void)
|
|
{
|
|
return print_backend_test_type;
|
|
}
|
|
|
|
/**
|
|
* gtk_print_backend_test_new:
|
|
*
|
|
* Creates a new #GtkPrintBackendTest object. #GtkPrintBackendTest
|
|
* implements the #GtkPrintBackend interface with direct access to
|
|
* the testsystem using Unix/Linux API calls
|
|
*
|
|
* Returns: the new #GtkPrintBackendTest object
|
|
**/
|
|
GtkPrintBackend *
|
|
gtk_print_backend_test_new (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_PRINT_BACKEND_TEST, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_print_backend_test_class_init (GtkPrintBackendTestClass *class)
|
|
{
|
|
GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_CLASS (class);
|
|
|
|
backend_parent_class = g_type_class_peek_parent (class);
|
|
|
|
backend_class->print_stream = gtk_print_backend_test_print_stream;
|
|
backend_class->printer_create_cairo_surface = test_printer_create_cairo_surface;
|
|
backend_class->printer_get_options = test_printer_get_options;
|
|
backend_class->printer_get_settings_from_options = test_printer_get_settings_from_options;
|
|
backend_class->printer_prepare_for_print = test_printer_prepare_for_print;
|
|
backend_class->printer_request_details = test_printer_request_details;
|
|
}
|
|
|
|
/* return N_FORMATS if no explicit format in the settings */
|
|
static OutputFormat
|
|
format_from_settings (GtkPrintSettings *settings)
|
|
{
|
|
const gchar *value;
|
|
gint i;
|
|
|
|
if (settings == NULL)
|
|
return N_FORMATS;
|
|
|
|
value = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT);
|
|
if (value == NULL)
|
|
return N_FORMATS;
|
|
|
|
for (i = 0; i < N_FORMATS; ++i)
|
|
if (strcmp (value, formats[i]) == 0)
|
|
break;
|
|
|
|
g_assert (i < N_FORMATS);
|
|
|
|
return (OutputFormat) i;
|
|
}
|
|
|
|
static gchar *
|
|
output_test_from_settings (GtkPrintSettings *settings,
|
|
const gchar *default_format)
|
|
{
|
|
gchar *uri = NULL;
|
|
|
|
if (settings)
|
|
uri = g_strdup (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI));
|
|
|
|
if (uri == NULL)
|
|
{
|
|
const gchar *extension;
|
|
gchar *name, *locale_name, *path;
|
|
|
|
if (default_format)
|
|
extension = default_format;
|
|
else
|
|
{
|
|
OutputFormat format;
|
|
|
|
format = format_from_settings (settings);
|
|
extension = format == FORMAT_PS ? "ps" : "pdf";
|
|
}
|
|
|
|
/* default filename used for print-to-test */
|
|
name = g_strdup_printf (_("test-output.%s"), extension);
|
|
locale_name = g_filename_from_utf8 (name, -1, NULL, NULL, NULL);
|
|
g_free (name);
|
|
|
|
if (locale_name != NULL)
|
|
{
|
|
gchar *current_dir = g_get_current_dir ();
|
|
path = g_build_filename (current_dir, locale_name, NULL);
|
|
g_free (locale_name);
|
|
|
|
uri = g_filename_to_uri (path, NULL, NULL);
|
|
g_free (path);
|
|
g_free (current_dir);
|
|
}
|
|
}
|
|
|
|
return uri;
|
|
}
|
|
|
|
static cairo_status_t
|
|
_cairo_write (void *closure,
|
|
const unsigned char *data,
|
|
unsigned int length)
|
|
{
|
|
GIOChannel *io = (GIOChannel *)closure;
|
|
gsize written;
|
|
GError *error;
|
|
|
|
error = NULL;
|
|
|
|
GTK_NOTE (PRINTING,
|
|
g_print ("TEST Backend: Writing %i byte chunk to temp test\n", length));
|
|
|
|
while (length > 0)
|
|
{
|
|
g_io_channel_write_chars (io, (const gchar *) data, length, &written, &error);
|
|
|
|
if (error != NULL)
|
|
{
|
|
GTK_NOTE (PRINTING,
|
|
g_print ("TEST Backend: Error writing to temp test, %s\n", error->message));
|
|
|
|
g_error_free (error);
|
|
return CAIRO_STATUS_WRITE_ERROR;
|
|
}
|
|
|
|
GTK_NOTE (PRINTING,
|
|
g_print ("TEST Backend: Wrote %i bytes to temp test\n", (int)written));
|
|
|
|
data += written;
|
|
length -= written;
|
|
}
|
|
|
|
return CAIRO_STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
static cairo_surface_t *
|
|
test_printer_create_cairo_surface (GtkPrinter *printer,
|
|
GtkPrintSettings *settings,
|
|
gdouble width,
|
|
gdouble height,
|
|
GIOChannel *cache_io)
|
|
{
|
|
cairo_surface_t *surface;
|
|
OutputFormat format;
|
|
|
|
format = format_from_settings (settings);
|
|
|
|
if (format == FORMAT_PS)
|
|
surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
|
|
else
|
|
surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
|
|
|
|
cairo_surface_set_fallback_resolution (surface,
|
|
2.0 * gtk_print_settings_get_printer_lpi (settings),
|
|
2.0 * gtk_print_settings_get_printer_lpi (settings));
|
|
|
|
return surface;
|
|
}
|
|
|
|
typedef struct {
|
|
GtkPrintBackend *backend;
|
|
GtkPrintJobCompleteFunc callback;
|
|
GtkPrintJob *job;
|
|
GIOChannel *target_io;
|
|
gpointer user_data;
|
|
GDestroyNotify dnotify;
|
|
} _PrintStreamData;
|
|
|
|
static void
|
|
test_print_cb (GtkPrintBackendTest *print_backend,
|
|
GError *error,
|
|
gpointer user_data)
|
|
{
|
|
_PrintStreamData *ps = (_PrintStreamData *) user_data;
|
|
|
|
if (ps->target_io != NULL)
|
|
g_io_channel_unref (ps->target_io);
|
|
|
|
if (ps->callback)
|
|
ps->callback (ps->job, ps->user_data, error);
|
|
|
|
if (ps->dnotify)
|
|
ps->dnotify (ps->user_data);
|
|
|
|
gtk_print_job_set_status (ps->job,
|
|
(error != NULL)?GTK_PRINT_STATUS_FINISHED_ABORTED:GTK_PRINT_STATUS_FINISHED);
|
|
|
|
if (ps->job)
|
|
g_object_unref (ps->job);
|
|
|
|
g_free (ps);
|
|
}
|
|
|
|
static gboolean
|
|
test_write (GIOChannel *source,
|
|
GIOCondition con,
|
|
gpointer user_data)
|
|
{
|
|
gchar buf[_STREAM_MAX_CHUNK_SIZE];
|
|
gsize bytes_read;
|
|
GError *error;
|
|
GIOStatus read_status;
|
|
_PrintStreamData *ps = (_PrintStreamData *) user_data;
|
|
|
|
error = NULL;
|
|
|
|
read_status =
|
|
g_io_channel_read_chars (source,
|
|
buf,
|
|
_STREAM_MAX_CHUNK_SIZE,
|
|
&bytes_read,
|
|
&error);
|
|
|
|
if (read_status != G_IO_STATUS_ERROR)
|
|
{
|
|
gsize bytes_written;
|
|
|
|
g_io_channel_write_chars (ps->target_io,
|
|
buf,
|
|
bytes_read,
|
|
&bytes_written,
|
|
&error);
|
|
}
|
|
|
|
if (error != NULL || read_status == G_IO_STATUS_EOF)
|
|
{
|
|
test_print_cb (GTK_PRINT_BACKEND_TEST (ps->backend), error, user_data);
|
|
|
|
if (error != NULL)
|
|
{
|
|
GTK_NOTE (PRINTING,
|
|
g_print ("TEST Backend: %s\n", error->message));
|
|
|
|
g_error_free (error);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
GTK_NOTE (PRINTING,
|
|
g_print ("TEST Backend: Writing %i byte chunk to target test\n", (int)bytes_read));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_print_backend_test_print_stream (GtkPrintBackend *print_backend,
|
|
GtkPrintJob *job,
|
|
GIOChannel *data_io,
|
|
GtkPrintJobCompleteFunc callback,
|
|
gpointer user_data,
|
|
GDestroyNotify dnotify)
|
|
{
|
|
GError *internal_error = NULL;
|
|
GtkPrinter *printer;
|
|
_PrintStreamData *ps;
|
|
GtkPrintSettings *settings;
|
|
gchar *uri, *testname;
|
|
|
|
printer = gtk_print_job_get_printer (job);
|
|
settings = gtk_print_job_get_settings (job);
|
|
|
|
ps = g_new0 (_PrintStreamData, 1);
|
|
ps->callback = callback;
|
|
ps->user_data = user_data;
|
|
ps->dnotify = dnotify;
|
|
ps->job = g_object_ref (job);
|
|
ps->backend = print_backend;
|
|
|
|
internal_error = NULL;
|
|
uri = output_test_from_settings (settings, NULL);
|
|
testname = g_filename_from_uri (uri, NULL, &internal_error);
|
|
g_free (uri);
|
|
|
|
if (testname == NULL)
|
|
goto error;
|
|
|
|
ps->target_io = g_io_channel_new_file (testname, "w", &internal_error);
|
|
|
|
g_free (testname);
|
|
|
|
if (internal_error == NULL)
|
|
g_io_channel_set_encoding (ps->target_io, NULL, &internal_error);
|
|
|
|
error:
|
|
if (internal_error != NULL)
|
|
{
|
|
test_print_cb (GTK_PRINT_BACKEND_TEST (print_backend),
|
|
internal_error, ps);
|
|
|
|
g_error_free (internal_error);
|
|
return;
|
|
}
|
|
|
|
g_io_add_watch (data_io,
|
|
G_IO_IN | G_IO_PRI | G_IO_ERR | G_IO_HUP,
|
|
(GIOFunc) test_write,
|
|
ps);
|
|
}
|
|
|
|
static void
|
|
gtk_print_backend_test_init (GtkPrintBackendTest *backend)
|
|
{
|
|
GtkPrinter *printer;
|
|
int i;
|
|
|
|
/* make 100 of these printers */
|
|
for (i = 0; i < 100; i++)
|
|
{
|
|
char *name;
|
|
|
|
name = g_strdup_printf ("%s %i", _("Print to Test Printer"), i);
|
|
printer = g_object_new (GTK_TYPE_PRINTER,
|
|
"name", name,
|
|
"backend", backend,
|
|
"is-virtual", FALSE, /* treat printer like a real one*/
|
|
NULL);
|
|
g_free (name);
|
|
|
|
g_message ("TEST Backend: Adding printer %d\n", i);
|
|
|
|
gtk_printer_set_has_details (printer, FALSE);
|
|
gtk_printer_set_icon_name (printer, "edit-delete"); /* use a delete icon just for fun */
|
|
gtk_printer_set_is_active (printer, TRUE);
|
|
|
|
gtk_print_backend_add_printer (GTK_PRINT_BACKEND (backend), printer);
|
|
g_object_unref (printer);
|
|
}
|
|
|
|
gtk_print_backend_set_list_done (GTK_PRINT_BACKEND (backend));
|
|
}
|
|
|
|
static GtkPrinterOptionSet *
|
|
test_printer_get_options (GtkPrinter *printer,
|
|
GtkPrintSettings *settings,
|
|
GtkPageSetup *page_setup,
|
|
GtkPrintCapabilities capabilities)
|
|
{
|
|
GtkPrinterOptionSet *set;
|
|
GtkPrinterOption *option;
|
|
const gchar *n_up[] = { "1" };
|
|
OutputFormat format;
|
|
|
|
format = format_from_settings (settings);
|
|
|
|
set = gtk_printer_option_set_new ();
|
|
|
|
option = gtk_printer_option_new ("gtk-n-up", _("Pages per _sheet:"), GTK_PRINTER_OPTION_TYPE_PICKONE);
|
|
gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up),
|
|
(char **) n_up, (char **) n_up /* FIXME i18n (localised digits)! */);
|
|
gtk_printer_option_set (option, "1");
|
|
gtk_printer_option_set_add (set, option);
|
|
g_object_unref (option);
|
|
|
|
return set;
|
|
}
|
|
|
|
static void
|
|
test_printer_get_settings_from_options (GtkPrinter *printer,
|
|
GtkPrinterOptionSet *options,
|
|
GtkPrintSettings *settings)
|
|
{
|
|
}
|
|
|
|
static void
|
|
test_printer_prepare_for_print (GtkPrinter *printer,
|
|
GtkPrintJob *print_job,
|
|
GtkPrintSettings *settings,
|
|
GtkPageSetup *page_setup)
|
|
{
|
|
gdouble scale;
|
|
|
|
gtk_print_job_set_pages (print_job, gtk_print_settings_get_print_pages (settings));
|
|
gtk_print_job_set_page_ranges (print_job, NULL, 0);
|
|
|
|
if (gtk_print_job_get_pages (print_job) == GTK_PRINT_PAGES_RANGES)
|
|
{
|
|
GtkPageRange *page_ranges;
|
|
gint num_page_ranges;
|
|
page_ranges = gtk_print_settings_get_page_ranges (settings, &num_page_ranges);
|
|
gtk_print_job_set_page_ranges (print_job, page_ranges, num_page_ranges);
|
|
}
|
|
|
|
gtk_print_job_set_collate (print_job, gtk_print_settings_get_collate (settings));
|
|
gtk_print_job_set_reverse (print_job, gtk_print_settings_get_reverse (settings));
|
|
gtk_print_job_set_num_copies (print_job, gtk_print_settings_get_n_copies (settings));
|
|
|
|
scale = gtk_print_settings_get_scale (settings);
|
|
if (scale != 100.0)
|
|
gtk_print_job_set_scale (print_job, scale/100.0);
|
|
|
|
gtk_print_job_set_page_set (print_job, gtk_print_settings_get_page_set (settings));
|
|
gtk_print_job_set_rotate (print_job, TRUE);
|
|
}
|
|
|
|
static gboolean
|
|
test_printer_details_acquired_cb (GtkPrinter *printer)
|
|
{
|
|
gboolean success;
|
|
gint weight;
|
|
|
|
/* weight towards success */
|
|
weight = g_random_int_range (0, 100);
|
|
|
|
success = FALSE;
|
|
if (weight < 75)
|
|
success = TRUE;
|
|
|
|
g_message ("success %i", success);
|
|
gtk_printer_set_has_details (printer, success);
|
|
g_signal_emit_by_name (printer, "details-acquired", success);
|
|
|
|
return G_SOURCE_REMOVE;
|
|
}
|
|
|
|
static void
|
|
test_printer_request_details (GtkPrinter *printer)
|
|
{
|
|
gint weight;
|
|
gint time;
|
|
/* set the timer to succeed or fail at a random time interval */
|
|
/* weight towards the shorter end */
|
|
weight = g_random_int_range (0, 100);
|
|
if (weight < 50)
|
|
time = g_random_int_range (0, 2);
|
|
else if (weight < 75)
|
|
time = g_random_int_range (1, 5);
|
|
else
|
|
time = g_random_int_range (1, 10);
|
|
|
|
g_message ("Gathering details in %i seconds", time);
|
|
|
|
if (time == 0)
|
|
time = 10;
|
|
else
|
|
time *= 1000;
|
|
|
|
g_timeout_add (time, (GSourceFunc) test_printer_details_acquired_cb, printer);
|
|
}
|
|
|
|
|