Allow printing to PDF when suppoted by the backend.

2006-12-03  Carlos Garcia Campos  <carlosgc@gnome.org>
	* configure.ac:
	* backend/Makefile.am:
	* backend/ev-file-exporter.[ch]:
	* pdf/ev-poppler.cc: (pdf_document_file_exporter_*):
	* ps/ps-document.c: (ps_document_file_exporter_*):
	* tiff/tiff-document.c: (tiff_document_document_file_exporter_*):
	* shell/ev-jobs.[ch]: (ev_job_print_new), (ev_job_print_run):
	* shell/ev-window.c: (ev_window_setup_action_sensitivity),
	(ev_window_print_dialog_response_cb), (ev_window_print_range):
	Allow printing to PDF when suppoted by the backend.

5 files changed, 177 insertions, 144 deletions

diff --git a/backend/Makefile.am b/backend/Makefile.am
index bcf975a..2de2f5f 100644
--- a/backend/Makefile.am
+++ b/backend/Makefile.am
@@ -43,8 +43,8 @@ libevbackend_la_SOURCES=			\
 	ev-document-find.c			\
 	ev-document-find.h			\
 	ev-document-info.h			\
-	ev-ps-exporter.c			\
-	ev-ps-exporter.h			\
+	ev-file-exporter.c			\
+	ev-file-exporter.h			\
 	ev-render-context.h			\
 	ev-render-context.c			\
 	ev-selection.h				\
diff --git a/backend/ev-file-exporter.c b/backend/ev-file-exporter.c
new file mode 100644
index 0000000..7a4e902
--- /dev/null
+++ b/backend/ev-file-exporter.c
@@ -0,0 +1,91 @@
+/* this file is part of evince, a gnome document viewer
+ *
+ *  Copyright (C) 2004 Martin Kretzschmar
+ *
+ *  Author:
+ *    Martin Kretzschmar <martink@gnome.org>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "ev-file-exporter.h"
+
+GType
+ev_file_exporter_get_type (void)
+{
+        static GType type = 0;
+
+        if (G_UNLIKELY (type == 0)) {
+                const GTypeInfo our_info =
+                {
+                        sizeof (EvFileExporterIface),
+                        NULL,
+                        NULL,
+                };
+
+                type = g_type_register_static (G_TYPE_INTERFACE,
+                                               "EvFileExporter",
+                                               &our_info, (GTypeFlags)0);
+        }
+
+        return type;
+}
+
+gboolean
+ev_file_exporter_format_supported (EvFileExporter      *exporter,
+				   EvFileExporterFormat format)
+{
+	EvFileExporterIface *iface = EV_FILE_EXPORTER_GET_IFACE (exporter);
+
+	if (format < EV_FILE_FORMAT_PS ||
+	    format > EV_FILE_FORMAT_PDF)
+		return FALSE;
+
+	return iface->format_supported (exporter, format);
+}
+
+void
+ev_file_exporter_begin (EvFileExporter      *exporter,
+                        EvFileExporterFormat format,
+                        const gchar         *filename,
+                        gint                 first_page,
+                        gint                 last_page,
+                        gdouble              paper_width,
+                        gdouble              paper_height,
+                        gboolean             duplex)
+{
+        EvFileExporterIface *iface = EV_FILE_EXPORTER_GET_IFACE (exporter);
+
+	g_return_if_fail (ev_file_exporter_format_supported (exporter, format));
+
+        iface->begin (exporter, format, filename, first_page, last_page,
+                      paper_width, paper_height, duplex);
+}
+
+void
+ev_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
+{
+        EvFileExporterIface *iface = EV_FILE_EXPORTER_GET_IFACE (exporter);
+
+        iface->do_page (exporter, rc);
+}
+
+void
+ev_file_exporter_end (EvFileExporter *exporter)
+{
+        EvFileExporterIface *iface = EV_FILE_EXPORTER_GET_IFACE (exporter);
+
+        iface->end (exporter);
+}
diff --git a/backend/ev-file-exporter.h b/backend/ev-file-exporter.h
new file mode 100644
index 0000000..f0e517c
--- /dev/null
+++ b/backend/ev-file-exporter.h
@@ -0,0 +1,84 @@
+/* this file is part of evince, a gnome document viewer
+ *
+ *  Copyright (C) 2004 Martin Kretzschmar
+ *
+ *  Author:
+ *    Martin Kretzschmar <martink@gnome.org>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef EV_FILE_EXPORTER_H
+#define EV_FILE_EXPORTER_H
+
+#include <glib-object.h>
+
+#include "ev-render-context.h"
+
+G_BEGIN_DECLS
+
+typedef enum {
+        EV_FILE_FORMAT_PS,
+        EV_FILE_FORMAT_PDF,
+        EV_FILE_FORMAT_UNKNOWN
+} EvFileExporterFormat;
+
+#define EV_TYPE_FILE_EXPORTER            (ev_file_exporter_get_type ())
+#define EV_FILE_EXPORTER(o)              (G_TYPE_CHECK_INSTANCE_CAST ((o), EV_TYPE_FILE_EXPORTER, EvFileExporter))
+#define EV_FILE_EXPORTER_IFACE(k)        (G_TYPE_CHECK_CLASS_CAST((k), EV_TYPE_FILE_EXPORTER, EvFileExporterIface))
+#define EV_IS_FILE_EXPORTER(o)           (G_TYPE_CHECK_INSTANCE_TYPE ((o), EV_TYPE_FILE_EXPORTER))
+#define EV_IS_FILE_EXPORTER_IFACE(k)     (G_TYPE_CHECK_CLASS_TYPE ((k), EV_TYPE_FILE_EXPORTER))
+#define EV_FILE_EXPORTER_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), EV_TYPE_FILE_EXPORTER, EvFileExporterIface))
+
+typedef struct _EvFileExporter EvFileExporter;
+typedef struct _EvFileExporterIface EvFileExporterIface;
+
+struct _EvFileExporterIface {
+        GTypeInterface base_iface;
+
+        /* Methods  */
+        gboolean   (* format_supported) (EvFileExporter      *exporter,
+                                         EvFileExporterFormat format);
+        void       (* begin)            (EvFileExporter      *exporter,
+                                         EvFileExporterFormat format,
+                                         const gchar         *filename,
+                                         gint                 first_page,
+                                         gint                 last_page,
+                                         gdouble              paper_width,
+                                         gdouble              paper_height,
+                                         gboolean             duplex);
+        void       (* do_page)          (EvFileExporter      *exporter,
+                                         EvRenderContext     *rc);
+        void       (* end)              (EvFileExporter      *exporter);
+};
+
+GType    ev_file_exporter_get_type         (void) G_GNUC_CONST;
+gboolean ev_file_exporter_format_supported (EvFileExporter      *exporter,
+                                            EvFileExporterFormat format);
+void     ev_file_exporter_begin            (EvFileExporter      *exporter,
+                                            EvFileExporterFormat format, 
+                                            const gchar         *filename,
+                                            gint                 first_page,
+                                            gint                 last_page,
+                                            gdouble              paper_width,
+                                            gdouble              paper_height,
+                                            gboolean             duplex);
+void     ev_file_exporter_do_page          (EvFileExporter      *exporter,
+                                            EvRenderContext     *rc);
+void     ev_file_exporter_end              (EvFileExporter      *exporter);
+
+G_END_DECLS
+
+#endif
diff --git a/backend/ev-ps-exporter.c b/backend/ev-ps-exporter.c
deleted file mode 100644
index 18c3536..0000000
--- a/backend/ev-ps-exporter.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* this file is part of evince, a gnome document viewer
- *
- *  Copyright (C) 2004 Martin Kretzschmar
- *
- *  Author:
- *    Martin Kretzschmar <martink@gnome.org>
- *
- * Evince is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * Evince 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-
-#include "ev-ps-exporter.h"
-
-GType
-ev_ps_exporter_get_type (void)
-{
-	static GType type = 0;
-
-	if (G_UNLIKELY (type == 0))
-	{
-		const GTypeInfo our_info =
-		{
-			sizeof (EvPSExporterIface),
-			NULL,
-			NULL,
-		};
-
-		type = g_type_register_static (G_TYPE_INTERFACE,
-					       "EvPSExporter",
-					       &our_info, (GTypeFlags)0);
-	}
-
-	return type;
-}
-
-void
-ev_ps_exporter_begin (EvPSExporter *exporter, const char *filename,
-		      int first_page, int last_page,
-                      double paper_width, double paper_height, gboolean duplex)
-{
-	EvPSExporterIface *iface = EV_PS_EXPORTER_GET_IFACE (exporter);
-
-	iface->begin (exporter, filename, first_page, last_page,
-                      paper_width, paper_height, duplex);
-}
-
-void
-ev_ps_exporter_do_page	(EvPSExporter *exporter, EvRenderContext *rc)
-{
-	EvPSExporterIface *iface = EV_PS_EXPORTER_GET_IFACE (exporter);
-
-	iface->do_page (exporter, rc);
-}
-
-void
-ev_ps_exporter_end	(EvPSExporter *exporter)
-{
-	EvPSExporterIface *iface = EV_PS_EXPORTER_GET_IFACE (exporter);
-
-	iface->end (exporter);
-}
diff --git a/backend/ev-ps-exporter.h b/backend/ev-ps-exporter.h
deleted file mode 100644
index 4115e3a..0000000
--- a/backend/ev-ps-exporter.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* this file is part of evince, a gnome document viewer
- *
- *  Copyright (C) 2004 Martin Kretzschmar
- *
- *  Author:
- *    Martin Kretzschmar <martink@gnome.org>
- *
- * Evince is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * Evince 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#ifndef EV_PS_EXPORTER_H
-#define EV_PS_EXPORTER_H
-
-#include <glib-object.h>
-
-#include "ev-render-context.h"
-
-G_BEGIN_DECLS
-
-#define EV_TYPE_PS_EXPORTER	       (ev_ps_exporter_get_type ())
-#define EV_PS_EXPORTER(o)	       (G_TYPE_CHECK_INSTANCE_CAST ((o), EV_TYPE_PS_EXPORTER, EvPSExporter))
-#define EV_PS_EXPORTER_IFACE(k)	       (G_TYPE_CHECK_CLASS_CAST((k), EV_TYPE_PS_EXPORTER, EvPSExporterIface))
-#define EV_IS_PS_EXPORTER(o)	       (G_TYPE_CHECK_INSTANCE_TYPE ((o), EV_TYPE_PS_EXPORTER))
-#define EV_IS_PS_EXPORTER_IFACE(k)     (G_TYPE_CHECK_CLASS_TYPE ((k), EV_TYPE_PS_EXPORTER))
-#define EV_PS_EXPORTER_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), EV_TYPE_PS_EXPORTER, EvPSExporterIface))
-
-typedef struct _EvPSExporter EvPSExporter;
-typedef struct _EvPSExporterIface EvPSExporterIface;
-
-struct _EvPSExporterIface {
-	GTypeInterface base_iface;
-
-	/* Methods  */
-	void		(* begin)	(EvPSExporter    *exporter,
-					 const char      *filename,
-					 int	          first_page,
-					 int	          last_page,
-                                         double           paper_width,
-                                         double           paper_height,
-                                         gboolean         duplex);
-	void		(* do_page)	(EvPSExporter    *exporter,
-					 EvRenderContext *rc);
-	void		(* end)		(EvPSExporter    *exporter);
-};
-
-GType	ev_ps_exporter_get_type (void);
-void	ev_ps_exporter_begin	(EvPSExporter *exporter, const char *filename,
-				 int first_page, int last_page,
-                                 double paper_width, double paper_height,
-                                 gboolean duplex);
-void	ev_ps_exporter_do_page	(EvPSExporter *exporter, EvRenderContext *rc);
-void	ev_ps_exporter_end	(EvPSExporter *exporter);
-
-G_END_DECLS
-
-#endif