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Add SVG support to GtkPrintBackendFile

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This add support for printing to SVG 1.2 files (#357655).
This commit is contained in:
Marek Kasik 2009-08-03 11:25:19 +02:00
parent f29b9e2daf
commit 39b960216c
2 changed files with 52 additions and 8 deletions
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2
demos/gtk-demo/printing.c
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@ -174,6 +174,8 @@ do_printing (GtkWidget *do_widget)
dir = g_get_home_dir ();
if (g_strcmp0 (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT), "ps") == 0)
ext = ".ps";
else if (g_strcmp0 (gtk_print_settings_get (settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT), "svg") == 0)
ext = ".svg";
else
ext = ".pdf";

58
modules/printbackends/file/gtkprintbackendfile.c
View File

@ -32,6 +32,7 @@
#include <cairo.h>
#include <cairo-pdf.h>
#include <cairo-ps.h>
#include <cairo-svg.h>
#include <glib/gi18n-lib.h>
@ -64,13 +65,15 @@ typedef enum
{
FORMAT_PDF,
FORMAT_PS,
FORMAT_SVG,
N_FORMATS
} OutputFormat;
static const gchar* formats[N_FORMATS] =
{
"pdf",
"ps"
"ps",
"svg"
};
static GObjectClass *backend_parent_class;
@ -228,7 +231,19 @@ output_file_from_settings (GtkPrintSettings *settings,
OutputFormat format;
format = format_from_settings (settings);
extension = format == FORMAT_PS ? "ps" : "pdf";
switch (format)
{
default:
case FORMAT_PDF:
extension = "pdf";
break;
case FORMAT_PS:
extension = "ps";
break;
case FORMAT_SVG:
extension = "svg";
break;
}
}
/* default filename used for print-to-file */
@ -298,13 +313,27 @@ file_printer_create_cairo_surface (GtkPrinter *printer,
{
cairo_surface_t *surface;
OutputFormat format;
const cairo_svg_version_t *versions;
int num_versions = 0;
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);
switch (format)
{
default:
case FORMAT_PDF:
surface = cairo_pdf_surface_create_for_stream (_cairo_write, cache_io, width, height);
break;
case FORMAT_PS:
surface = cairo_ps_surface_create_for_stream (_cairo_write, cache_io, width, height);
break;
case FORMAT_SVG:
surface = cairo_svg_surface_create_for_stream (_cairo_write, cache_io, width, height);
cairo_svg_get_versions (&versions, &num_versions);
if (num_versions > 0)
cairo_svg_surface_restrict_to_version (surface, versions[num_versions - 1]);
break;
}
if (gtk_print_settings_get_printer_lpi (settings) == 0.0)
gtk_print_settings_set_printer_lpi (settings, 150.0);
@ -543,7 +572,7 @@ file_printer_get_options (GtkPrinter *printer,
GtkPrinterOption *option;
const gchar *n_up[] = {"1", "2", "4", "6", "9", "16" };
const gchar *pages_per_sheet = NULL;
const gchar *format_names[N_FORMATS] = { N_("PDF"), N_("Postscript") };
const gchar *format_names[N_FORMATS] = { N_("PDF"), N_("Postscript"), N_("SVG") };
const gchar *supported_formats[N_FORMATS];
gchar *display_format_names[N_FORMATS];
gint n_formats = 0;
@ -591,7 +620,20 @@ file_printer_get_options (GtkPrinter *printer,
}
else
{
current_format = format == FORMAT_PS ? FORMAT_PS : FORMAT_PDF;
switch (format)
{
default:
case FORMAT_PDF:
current_format = FORMAT_PDF;
break;
case FORMAT_PS:
current_format = FORMAT_PS;
break;
case FORMAT_SVG:
current_format = FORMAT_SVG;
break;
}
for (n_formats = 0; n_formats < N_FORMATS; ++n_formats)
{
supported_formats[n_formats] = formats[n_formats];