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Apply a patch by Christian Persch to support PostScript and PDF output.

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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 2006-06-21 19:06:58 +00:00 committed by Matthias Clasen
parent f3843afead
commit 894d81c829
3 changed files with 146 additions and 25 deletions
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4
ChangeLog
View File

@ -1,5 +1,9 @@
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.
* gtk/gtkprinteroptionwidget.c (radio_changed_cb): Don't free
the value.

4
ChangeLog.pre-2-10
View File

@ -1,5 +1,9 @@
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.
* gtk/gtkprinteroptionwidget.c (radio_changed_cb): Don't free
the value.

159
modules/printbackends/file/gtkprintbackendfile.c
View File

@ -31,6 +31,7 @@
#include <errno.h>
#include <cairo.h>
#include <cairo-pdf.h>
#include <cairo-ps.h>
#include <glib/gi18n-lib.h>
@ -62,6 +63,19 @@ struct _GtkPrintBackendFile
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_file_class_init (GtkPrintBackendFileClass *class);
@ -167,6 +181,56 @@ gtk_print_backend_file_class_init (GtkPrintBackendFileClass *class)
backend_class->printer_prepare_for_print = file_printer_prepare_for_print;
}
static OutputFormat
format_from_settings (GtkPrintSettings *settings)
{
const gchar *value;
gint i;
if (settings == NULL)
return FORMAT_PDF;
value = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT);
if (value == NULL)
return FORMAT_PDF;
for (i = 0; i < N_FORMATS; ++i)
if (strcmp (value, formats[i]) == 0)
break;
g_assert (i < N_FORMATS);
return (OutputFormat) i;
}
static gchar *
filename_from_settings (GtkPrintSettings *settings)
{
gchar *filename;
filename = NULL;
if (settings)
{
const gchar *uri;
uri = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI);
if (uri)
filename = g_filename_from_uri (uri, NULL, NULL);
}
/* FIXME: shouldn't we error out if we get an URI we cannot handle,
* rather than to print to some random file somewhere?
*/
if (filename == NULL)
{
OutputFormat format;
format = format_from_settings (settings);
filename = g_strdup_printf ("output.%s", formats[format]);
}
return filename;
}
static cairo_status_t
_cairo_write (void *closure,
const unsigned char *data,
@ -213,8 +277,14 @@ file_printer_create_cairo_surface (GtkPrinter *printer,
GIOChannel *cache_io)
{
cairo_surface_t *surface;
OutputFormat format;
format = format_from_settings (settings);
if (format == FORMAT_PDF)
surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
else
surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
/* TODO: DPI from settings object? */
cairo_surface_set_fallback_resolution (surface, 300, 300);
@ -320,23 +390,11 @@ gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
GtkPrinter *printer;
_PrintStreamData *ps;
GtkPrintSettings *settings;
const gchar *uri;
gchar *filename = NULL;
printer = gtk_print_job_get_printer (job);
settings = gtk_print_job_get_settings (job);
internal_error = NULL;
uri = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI);
if (uri)
filename = g_filename_from_uri (uri, NULL, NULL);
/* FIXME: shouldn't we error out if we get an URI we cannot handle,
* rather than to print to some random file somewhere?
*/
if (filename == NULL)
filename = g_strdup_printf ("output.pdf");
ps = g_new0 (_PrintStreamData, 1);
ps->callback = callback;
ps->user_data = user_data;
@ -344,16 +402,20 @@ gtk_print_backend_file_print_stream (GtkPrintBackend *print_backend,
ps->job = g_object_ref (job);
ps->backend = print_backend;
internal_error = NULL;
filename = filename_from_settings (settings);
ps->target_io = g_io_channel_new_file (filename, "w", &internal_error);
g_free (filename);
if (internal_error == NULL)
g_io_channel_set_encoding (ps->target_io, NULL, &internal_error);
if (internal_error != NULL)
{
file_print_cb (GTK_PRINT_BACKEND_FILE (print_backend),
internal_error,
ps);
internal_error, ps);
g_error_free (internal_error);
return;
@ -374,7 +436,6 @@ gtk_print_backend_file_init (GtkPrintBackendFile *backend)
"name", _("Print to File"),
"backend", backend,
"is-virtual", TRUE,
"accepts-ps", FALSE,
NULL);
gtk_printer_set_has_details (printer, TRUE);
@ -395,26 +456,75 @@ file_printer_get_options (GtkPrinter *printer,
{
GtkPrinterOptionSet *set;
GtkPrinterOption *option;
const char *uri;
char *n_up[] = {"1" };
const gchar *n_up[] = { "1" };
const gchar *format_names[N_FORMATS] = { N_("PDF"), N_("Postscript") };
const gchar *supported_formats[N_FORMATS];
gchar *display_format_names[N_FORMATS];
gint n_formats = 0;
OutputFormat format;
gchar *filename;
gint current_format;
format = format_from_settings (settings);
filename = filename_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);
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),
n_up, 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);
option = gtk_printer_option_new ("gtk-main-page-custom-input", _("File"), GTK_PRINTER_OPTION_TYPE_FILESAVE);
gtk_printer_option_set (option, "output.pdf");
gtk_printer_option_set (option, filename);
option->group = g_strdup ("GtkPrintDialogExtension");
gtk_printer_option_set_add (set, option);
if (settings != NULL &&
(uri = gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_URI))!= NULL)
gtk_printer_option_set (option, uri);
if (capabilities & (GTK_PRINT_CAPABILITY_GENERATE_PDF | GTK_PRINT_CAPABILITY_GENERATE_PS))
{
if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PDF)
{
if (format == FORMAT_PDF)
current_format = n_formats;
supported_formats[n_formats] = formats[FORMAT_PDF];
display_format_names[n_formats] = _(format_names[FORMAT_PDF]);
n_formats++;
}
if (capabilities & GTK_PRINT_CAPABILITY_GENERATE_PS)
{
if (format == FORMAT_PS)
current_format = n_formats;
supported_formats[n_formats] = formats[FORMAT_PS];
display_format_names[n_formats] = _(format_names[FORMAT_PS]);
n_formats++;
}
}
else
{
current_format = format;
for (n_formats = 0; n_formats < N_FORMATS; ++n_formats)
{
supported_formats[n_formats] = formats[n_formats];
display_format_names[n_formats] = _(format_names[n_formats]);
}
}
if (n_formats > 1)
{
option = gtk_printer_option_new ("output-file-format", _("_Output format"),
GTK_PRINTER_OPTION_TYPE_ALTERNATIVE);
option->group = g_strdup ("GtkPrintDialogExtension");
gtk_printer_option_choices_from_array (option, n_formats,
(char **) supported_formats,
display_format_names);
gtk_printer_option_set (option, supported_formats[current_format]);
gtk_printer_option_set_add (set, option);
g_object_unref (option);
}
return set;
}
@ -428,6 +538,9 @@ file_printer_get_settings_from_options (GtkPrinter *printer,
option = gtk_printer_option_set_lookup (options, "gtk-main-page-custom-input");
gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_URI, option->value);
option = gtk_printer_option_set_lookup (options, "output-file-format");
gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, option->value);
}
static void