forked from AuroraMiddleware/gtk
595 lines
16 KiB
C
595 lines
16 KiB
C
/* GTK - The GIMP Toolkit
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* gtkprintbackendpdf.c: Test implementation of GtkPrintBackend
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* for printing to a test
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* Copyright (C) 2007, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <cairo.h>
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#include <cairo-pdf.h>
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#include <cairo-ps.h>
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#include <glib/gi18n-lib.h>
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#include <gtk/gtkprintbackend.h>
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#include <gtk/gtkunixprint.h>
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#include <gtk/gtkprinter-private.h>
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#include "gtkprintbackendtest.h"
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typedef struct _GtkPrintBackendTestClass GtkPrintBackendTestClass;
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#define GTK_PRINT_BACKEND_TEST_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PRINT_BACKEND_TEST, GtkPrintBackendTestClass))
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#define GTK_IS_PRINT_BACKEND_TEST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PRINT_BACKEND_TEST))
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#define GTK_PRINT_BACKENDTEST_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PRINT_BACKEND_TEST, GtkPrintBackendTestClass))
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#define _STREAM_MAX_CHUNK_SIZE 8192
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static GType print_backend_test_type = 0;
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struct _GtkPrintBackendTestClass
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{
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GtkPrintBackendClass parent_class;
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};
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struct _GtkPrintBackendTest
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{
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GtkPrintBackend parent_instance;
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};
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typedef enum
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{
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FORMAT_PDF,
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FORMAT_PS,
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N_FORMATS
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} OutputFormat;
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static const gchar* formats[N_FORMATS] =
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{
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"pdf",
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"ps"
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};
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static GObjectClass *backend_parent_class;
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static void gtk_print_backend_test_class_init (GtkPrintBackendTestClass *class);
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static void gtk_print_backend_test_init (GtkPrintBackendTest *impl);
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static void test_printer_get_settings_from_options (GtkPrinter *printer,
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GtkPrinterOptionSet *options,
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GtkPrintSettings *settings);
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static GtkPrinterOptionSet *test_printer_get_options (GtkPrinter *printer,
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GtkPrintSettings *settings,
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GtkPageSetup *page_setup,
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GtkPrintCapabilities capabilities);
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static void test_printer_prepare_for_print (GtkPrinter *printer,
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GtkPrintJob *print_job,
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GtkPrintSettings *settings,
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GtkPageSetup *page_setup);
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static void gtk_print_backend_test_print_stream (GtkPrintBackend *print_backend,
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GtkPrintJob *job,
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GIOChannel *data_io,
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GtkPrintJobCompleteFunc callback,
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gpointer user_data,
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GDestroyNotify dnotify);
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static cairo_surface_t * test_printer_create_cairo_surface (GtkPrinter *printer,
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GtkPrintSettings *settings,
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gdouble width,
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gdouble height,
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GIOChannel *cache_io);
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static void test_printer_request_details (GtkPrinter *printer);
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static void
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gtk_print_backend_test_register_type (GTypeModule *module)
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{
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const GTypeInfo print_backend_test_info =
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{
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sizeof (GtkPrintBackendTestClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gtk_print_backend_test_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkPrintBackendTest),
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0, /* n_preallocs */
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(GInstanceInitFunc) gtk_print_backend_test_init,
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};
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print_backend_test_type = g_type_module_register_type (module,
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GTK_TYPE_PRINT_BACKEND,
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"GtkPrintBackendTest",
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&print_backend_test_info, 0);
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}
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G_MODULE_EXPORT void
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pb_module_init (GTypeModule *module)
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{
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gtk_print_backend_test_register_type (module);
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}
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G_MODULE_EXPORT void
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pb_module_exit (void)
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{
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}
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G_MODULE_EXPORT GtkPrintBackend *
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pb_module_create (void)
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{
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return gtk_print_backend_test_new ();
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}
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/*
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* GtkPrintBackendTest
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*/
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GType
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gtk_print_backend_test_get_type (void)
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{
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return print_backend_test_type;
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}
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/**
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* gtk_print_backend_test_new:
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*
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* Creates a new #GtkPrintBackendTest object. #GtkPrintBackendTest
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* implements the #GtkPrintBackend interface with direct access to
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* the testsystem using Unix/Linux API calls
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*
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* Return value: the new #GtkPrintBackendTest object
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**/
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GtkPrintBackend *
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gtk_print_backend_test_new (void)
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{
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return g_object_new (GTK_TYPE_PRINT_BACKEND_TEST, NULL);
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}
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static void
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gtk_print_backend_test_class_init (GtkPrintBackendTestClass *class)
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{
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GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_CLASS (class);
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backend_parent_class = g_type_class_peek_parent (class);
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backend_class->print_stream = gtk_print_backend_test_print_stream;
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backend_class->printer_create_cairo_surface = test_printer_create_cairo_surface;
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backend_class->printer_get_options = test_printer_get_options;
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backend_class->printer_get_settings_from_options = test_printer_get_settings_from_options;
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backend_class->printer_prepare_for_print = test_printer_prepare_for_print;
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backend_class->printer_request_details = test_printer_request_details;
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}
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/* return N_FORMATS if no explicit format in the settings */
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static OutputFormat
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format_from_settings (GtkPrintSettings *settings)
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{
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const gchar *value;
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gint i;
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if (settings == NULL)
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return N_FORMATS;
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value = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT);
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if (value == NULL)
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return N_FORMATS;
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for (i = 0; i < N_FORMATS; ++i)
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if (strcmp (value, formats[i]) == 0)
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break;
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g_assert (i < N_FORMATS);
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return (OutputFormat) i;
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}
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static gchar *
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output_test_from_settings (GtkPrintSettings *settings,
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const gchar *default_format)
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{
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gchar *uri = NULL;
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if (settings)
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uri = g_strdup (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI));
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if (uri == NULL)
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{
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const gchar *extension;
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gchar *name, *locale_name, *path;
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if (default_format)
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extension = default_format;
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else
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{
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OutputFormat format;
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format = format_from_settings (settings);
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extension = format == FORMAT_PS ? "ps" : "pdf";
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}
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/* default filename used for print-to-test */
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name = g_strdup_printf (_("test-output.%s"), extension);
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locale_name = g_filename_from_utf8 (name, -1, NULL, NULL, NULL);
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g_free (name);
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if (locale_name != NULL)
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{
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gchar *current_dir = g_get_current_dir ();
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path = g_build_filename (current_dir, locale_name, NULL);
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g_free (locale_name);
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uri = g_filename_to_uri (path, NULL, NULL);
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g_free (path);
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g_free (current_dir);
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}
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}
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return uri;
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}
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static cairo_status_t
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_cairo_write (void *closure,
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const unsigned char *data,
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unsigned int length)
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{
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GIOChannel *io = (GIOChannel *)closure;
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gsize written;
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GError *error;
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error = NULL;
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GTK_NOTE (PRINTING,
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g_print ("TEST Backend: Writing %i byte chunk to temp test\n", length));
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while (length > 0)
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{
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g_io_channel_write_chars (io, (const gchar *) data, length, &written, &error);
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if (error != NULL)
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{
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GTK_NOTE (PRINTING,
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g_print ("TEST Backend: Error writing to temp test, %s\n", error->message));
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g_error_free (error);
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return CAIRO_STATUS_WRITE_ERROR;
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}
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GTK_NOTE (PRINTING,
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g_print ("TEST Backend: Wrote %i bytes to temp test\n", (int)written));
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data += written;
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length -= written;
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}
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_surface_t *
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test_printer_create_cairo_surface (GtkPrinter *printer,
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GtkPrintSettings *settings,
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gdouble width,
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gdouble height,
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GIOChannel *cache_io)
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{
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cairo_surface_t *surface;
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OutputFormat format;
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format = format_from_settings (settings);
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if (format == FORMAT_PS)
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surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
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else
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surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
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cairo_surface_set_fallback_resolution (surface,
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2.0 * gtk_print_settings_get_printer_lpi (settings),
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2.0 * gtk_print_settings_get_printer_lpi (settings));
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return surface;
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}
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typedef struct {
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GtkPrintBackend *backend;
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GtkPrintJobCompleteFunc callback;
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GtkPrintJob *job;
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GIOChannel *target_io;
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gpointer user_data;
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GDestroyNotify dnotify;
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} _PrintStreamData;
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static void
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test_print_cb (GtkPrintBackendTest *print_backend,
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GError *error,
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gpointer user_data)
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{
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_PrintStreamData *ps = (_PrintStreamData *) user_data;
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if (ps->target_io != NULL)
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g_io_channel_unref (ps->target_io);
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if (ps->callback)
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ps->callback (ps->job, ps->user_data, error);
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if (ps->dnotify)
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ps->dnotify (ps->user_data);
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gtk_print_job_set_status (ps->job,
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(error != NULL)?GTK_PRINT_STATUS_FINISHED_ABORTED:GTK_PRINT_STATUS_FINISHED);
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if (ps->job)
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g_object_unref (ps->job);
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g_free (ps);
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}
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static gboolean
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test_write (GIOChannel *source,
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GIOCondition con,
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gpointer user_data)
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{
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gchar buf[_STREAM_MAX_CHUNK_SIZE];
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gsize bytes_read;
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GError *error;
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GIOStatus read_status;
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_PrintStreamData *ps = (_PrintStreamData *) user_data;
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error = NULL;
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read_status =
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g_io_channel_read_chars (source,
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buf,
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_STREAM_MAX_CHUNK_SIZE,
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&bytes_read,
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&error);
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if (read_status != G_IO_STATUS_ERROR)
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{
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gsize bytes_written;
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g_io_channel_write_chars (ps->target_io,
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buf,
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bytes_read,
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&bytes_written,
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&error);
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}
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if (error != NULL || read_status == G_IO_STATUS_EOF)
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{
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test_print_cb (GTK_PRINT_BACKEND_TEST (ps->backend), error, user_data);
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if (error != NULL)
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{
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GTK_NOTE (PRINTING,
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g_print ("TEST Backend: %s\n", error->message));
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g_error_free (error);
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}
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return FALSE;
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}
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GTK_NOTE (PRINTING,
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g_print ("TEST Backend: Writing %i byte chunk to target test\n", (int)bytes_read));
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return TRUE;
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}
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static void
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gtk_print_backend_test_print_stream (GtkPrintBackend *print_backend,
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GtkPrintJob *job,
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GIOChannel *data_io,
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GtkPrintJobCompleteFunc callback,
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gpointer user_data,
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GDestroyNotify dnotify)
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{
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GError *internal_error = NULL;
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GtkPrinter *printer;
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_PrintStreamData *ps;
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GtkPrintSettings *settings;
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gchar *uri, *testname;
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printer = gtk_print_job_get_printer (job);
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settings = gtk_print_job_get_settings (job);
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ps = g_new0 (_PrintStreamData, 1);
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ps->callback = callback;
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ps->user_data = user_data;
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ps->dnotify = dnotify;
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ps->job = g_object_ref (job);
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ps->backend = print_backend;
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internal_error = NULL;
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uri = output_test_from_settings (settings, NULL);
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testname = g_filename_from_uri (uri, NULL, &internal_error);
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g_free (uri);
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if (testname == NULL)
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goto error;
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ps->target_io = g_io_channel_new_file (testname, "w", &internal_error);
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g_free (testname);
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if (internal_error == NULL)
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g_io_channel_set_encoding (ps->target_io, NULL, &internal_error);
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error:
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if (internal_error != NULL)
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{
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test_print_cb (GTK_PRINT_BACKEND_TEST (print_backend),
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internal_error, ps);
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g_error_free (internal_error);
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return;
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}
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g_io_add_watch (data_io,
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G_IO_IN | G_IO_PRI | G_IO_ERR | G_IO_HUP,
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(GIOFunc) test_write,
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ps);
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}
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static void
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gtk_print_backend_test_init (GtkPrintBackendTest *backend)
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{
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GtkPrinter *printer;
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int i;
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/* make 100 of these printers */
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for (i = 0; i < 100; i++)
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{
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char *name;
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name = g_strdup_printf ("%s %i", _("Print to Test Printer"), i);
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printer = g_object_new (GTK_TYPE_PRINTER,
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"name", name,
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"backend", backend,
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"is-virtual", FALSE, /* treat printer like a real one*/
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NULL);
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g_free (name);
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g_message ("TEST Backend: Adding printer %d\n", i);
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gtk_printer_set_has_details (printer, FALSE);
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gtk_printer_set_icon_name (printer, "edit-delete"); /* use a delete icon just for fun */
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gtk_printer_set_is_active (printer, TRUE);
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gtk_print_backend_add_printer (GTK_PRINT_BACKEND (backend), printer);
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g_object_unref (printer);
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}
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gtk_print_backend_set_list_done (GTK_PRINT_BACKEND (backend));
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}
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static GtkPrinterOptionSet *
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test_printer_get_options (GtkPrinter *printer,
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GtkPrintSettings *settings,
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GtkPageSetup *page_setup,
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GtkPrintCapabilities capabilities)
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{
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GtkPrinterOptionSet *set;
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GtkPrinterOption *option;
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const gchar *n_up[] = { "1" };
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OutputFormat format;
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format = format_from_settings (settings);
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set = gtk_printer_option_set_new ();
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option = gtk_printer_option_new ("gtk-n-up", _("Pages per _sheet:"), GTK_PRINTER_OPTION_TYPE_PICKONE);
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gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up),
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(char **) n_up, (char **) n_up /* FIXME i18n (localised digits)! */);
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gtk_printer_option_set (option, "1");
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gtk_printer_option_set_add (set, option);
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g_object_unref (option);
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return set;
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}
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static void
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test_printer_get_settings_from_options (GtkPrinter *printer,
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GtkPrinterOptionSet *options,
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GtkPrintSettings *settings)
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{
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}
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static void
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test_printer_prepare_for_print (GtkPrinter *printer,
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GtkPrintJob *print_job,
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GtkPrintSettings *settings,
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GtkPageSetup *page_setup)
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{
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gdouble scale;
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gtk_print_job_set_pages (print_job, gtk_print_settings_get_print_pages (settings));
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gtk_print_job_set_page_ranges (print_job, NULL, 0);
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if (gtk_print_job_get_pages (print_job) == GTK_PRINT_PAGES_RANGES)
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{
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GtkPageRange *page_ranges;
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gint num_page_ranges;
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page_ranges = gtk_print_settings_get_page_ranges (settings, &num_page_ranges);
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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);
|
|
}
|
|
|
|
|