forked from AuroraMiddleware/gtk
Apply a patch by Christian Persch to support PostScript and PDF output.
2006-06-21 Matthias Clasen <mclasen@redhat.com> * modules/printbackends/file/gtkprintbackendfile.c: Apply a patch by Christian Persch to support PostScript and PDF output.
This commit is contained in:
Matthias Clasen
Matthias Clasen
parent
f3843afead
commit
894d81c829
@ -1,5 +1,9 @@
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2006-06-21 Matthias Clasen <mclasen@redhat.com>
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* modules/printbackends/file/gtkprintbackendfile.c:
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Apply a patch by Christian Persch to support PostScript and PDF
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output.
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* gtk/gtkprinteroptionwidget.c (radio_changed_cb): Don't free
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the value.
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@ -1,5 +1,9 @@
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2006-06-21 Matthias Clasen <mclasen@redhat.com>
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* modules/printbackends/file/gtkprintbackendfile.c:
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Apply a patch by Christian Persch to support PostScript and PDF
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output.
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* gtk/gtkprinteroptionwidget.c (radio_changed_cb): Don't free
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the value.
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@ -31,6 +31,7 @@
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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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@ -62,6 +63,19 @@ struct _GtkPrintBackendFile
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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_file_class_init (GtkPrintBackendFileClass *class);
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@ -167,6 +181,56 @@ gtk_print_backend_file_class_init (GtkPrintBackendFileClass *class)
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backend_class->printer_prepare_for_print = file_printer_prepare_for_print;
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}
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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 FORMAT_PDF;
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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 FORMAT_PDF;
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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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filename_from_settings (GtkPrintSettings *settings)
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{
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gchar *filename;
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filename = NULL;
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if (settings)
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{
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const gchar *uri;
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uri = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI);
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if (uri)
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filename = g_filename_from_uri (uri, NULL, NULL);
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}
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/* FIXME: shouldn't we error out if we get an URI we cannot handle,
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* rather than to print to some random file somewhere?
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*/
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if (filename == NULL)
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{
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OutputFormat format;
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format = format_from_settings (settings);
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filename = g_strdup_printf ("output.%s", formats[format]);
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}
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return filename;
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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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@ -213,8 +277,14 @@ file_printer_create_cairo_surface (GtkPrinter *printer,
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GIOChannel *cache_io)
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{
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cairo_surface_t *surface;
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surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
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OutputFormat format;
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format = format_from_settings (settings);
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if (format == FORMAT_PDF)
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surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
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else
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surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
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/* TODO: DPI from settings object? */
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cairo_surface_set_fallback_resolution (surface, 300, 300);
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@ -320,23 +390,11 @@ gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
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GtkPrinter *printer;
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_PrintStreamData *ps;
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GtkPrintSettings *settings;
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const gchar *uri;
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gchar *filename = NULL;
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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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internal_error = NULL;
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uri = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI);
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if (uri)
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filename = g_filename_from_uri (uri, NULL, NULL);
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/* FIXME: shouldn't we error out if we get an URI we cannot handle,
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* rather than to print to some random file somewhere?
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*/
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if (filename == NULL)
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filename = g_strdup_printf ("output.pdf");
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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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@ -344,16 +402,20 @@ gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
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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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filename = filename_from_settings (settings);
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ps->target_io = g_io_channel_new_file (filename, "w", &internal_error);
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g_free (filename);
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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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if (internal_error != NULL)
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{
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file_print_cb (GTK_PRINT_BACKEND_FILE (print_backend),
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internal_error,
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ps);
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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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@ -374,7 +436,6 @@ gtk_print_backend_file_init (GtkPrintBackendFile *backend)
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"name", _("Print to File"),
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"backend", backend,
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"is-virtual", TRUE,
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"accepts-ps", FALSE,
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NULL);
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gtk_printer_set_has_details (printer, TRUE);
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@ -395,26 +456,75 @@ file_printer_get_options (GtkPrinter *printer,
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{
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GtkPrinterOptionSet *set;
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GtkPrinterOption *option;
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const char *uri;
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char *n_up[] = {"1" };
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const gchar *n_up[] = { "1" };
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const gchar *format_names[N_FORMATS] = { N_("PDF"), N_("Postscript") };
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const gchar *supported_formats[N_FORMATS];
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gchar *display_format_names[N_FORMATS];
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gint n_formats = 0;
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OutputFormat format;
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gchar *filename;
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gint current_format;
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format = format_from_settings (settings);
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filename = filename_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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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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n_up, 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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option = gtk_printer_option_new ("gtk-main-page-custom-input", _("File"), GTK_PRINTER_OPTION_TYPE_FILESAVE);
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gtk_printer_option_set (option, "output.pdf");
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gtk_printer_option_set (option, filename);
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option->group = g_strdup ("GtkPrintDialogExtension");
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gtk_printer_option_set_add (set, option);
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if (settings != NULL &&
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(uri = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI))!= NULL)
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gtk_printer_option_set (option, uri);
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if (capabilities & (GTK_PRINT_CAPABILITY_GENERATE_PDF | GTK_PRINT_CAPABILITY_GENERATE_PS))
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{
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if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PDF)
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{
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if (format == FORMAT_PDF)
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current_format = n_formats;
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supported_formats[n_formats] = formats[FORMAT_PDF];
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display_format_names[n_formats] = _(format_names[FORMAT_PDF]);
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n_formats++;
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}
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if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PS)
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{
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if (format == FORMAT_PS)
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current_format = n_formats;
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supported_formats[n_formats] = formats[FORMAT_PS];
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display_format_names[n_formats] = _(format_names[FORMAT_PS]);
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n_formats++;
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}
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}
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else
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{
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current_format = format;
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for (n_formats = 0; n_formats < N_FORMATS; ++n_formats)
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{
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supported_formats[n_formats] = formats[n_formats];
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display_format_names[n_formats] = _(format_names[n_formats]);
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}
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}
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if (n_formats > 1)
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{
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option = gtk_printer_option_new ("output-file-format", _("_Output format"),
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GTK_PRINTER_OPTION_TYPE_ALTERNATIVE);
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option->group = g_strdup ("GtkPrintDialogExtension");
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gtk_printer_option_choices_from_array (option, n_formats,
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(char **) supported_formats,
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display_format_names);
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gtk_printer_option_set (option, supported_formats[current_format]);
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gtk_printer_option_set_add (set, option);
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g_object_unref (option);
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}
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return set;
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}
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@ -428,6 +538,9 @@ file_printer_get_settings_from_options (GtkPrinter *printer,
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option = gtk_printer_option_set_lookup (options, "gtk-main-page-custom-input");
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gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_URI, option->value);
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option = gtk_printer_option_set_lookup (options, "output-file-format");
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gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, option->value);
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}
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static void
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