Use capabilities to know which options should be offered by the print

2007-07-26  Carlos Garcia Campos  <carlosgc@gnome.org>
	* backend/dvi/dvi-document.c: (dvi_document_file_exporter_begin),
	(dvi_document_file_exporter_do_page),
	(dvi_document_file_exporter_get_capabilities),
	(dvi_document_file_exporter_iface_init):
	* backend/ps/ps-document.c: (ps_document_file_exporter_begin),
	(ps_document_file_exporter_do_page),
	(ps_document_file_exporter_get_capabilities),
	(ps_document_file_exporter_iface_init):
	* backend/djvu/djvu-document.c:
	(djvu_document_file_exporter_begin),
	(djvu_document_file_exporter_end),
	(djvu_document_file_exporter_get_capabilities),
	(djvu_document_file_exporter_iface_init):
	* backend/tiff/tiff-document.c:
	(tiff_document_file_exporter_begin),
	(tiff_document_file_exporter_get_capabilities),
	(tiff_document_document_file_exporter_iface_init):
	* backend/pdf/ev-poppler.cc: (pdf_document_file_exporter_begin),
	(pdf_document_file_exporter_do_page),
	(pdf_document_file_exporter_get_capabilities),
	(pdf_document_file_exporter_iface_init):
	* libdocument/ev-file-exporter.[ch]: (ev_file_exporter_begin),
	(ev_file_exporter_get_capabilities):
	* shell/ev-print-job.c: (ev_print_job_use_print_dialog_settings),
	(idle_print_handler), (ev_print_job_print):
	* shell/ev-jobs.c: (ev_job_print_run):
	* shell/ev-window.c: (ev_window_print_send),
	(ev_window_print_range):
	Use capabilities to know which options should be offered by the
	print dialog depending on the document backend.

svn path=/trunk/; revision=2580

2 files changed, 52 insertions, 57 deletions

diff --git a/libdocument/ev-file-exporter.c b/libdocument/ev-file-exporter.c
index 7a4e902..d65abec 100644
--- a/libdocument/ev-file-exporter.c
+++ b/libdocument/ev-file-exporter.c
@@ -43,39 +43,18 @@ ev_file_exporter_get_type (void)
         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)
+ev_file_exporter_begin (EvFileExporter        *exporter,
+                        EvFileExporterContext *fc)
 {
         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);
+        iface->begin (exporter, fc);
 }
 
 void
-ev_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc)
+ev_file_exporter_do_page (EvFileExporter  *exporter,
+			  EvRenderContext *rc)
 {
         EvFileExporterIface *iface = EV_FILE_EXPORTER_GET_IFACE (exporter);
 
@@ -89,3 +68,11 @@ ev_file_exporter_end (EvFileExporter *exporter)
 
         iface->end (exporter);
 }
+
+EvFileExporterCapabilities
+ev_file_exporter_get_capabilities (EvFileExporter *exporter)
+{
+	EvFileExporterIface *iface = EV_FILE_EXPORTER_GET_IFACE (exporter);
+
+	iface->get_capabilities (exporter);
+}
diff --git a/libdocument/ev-file-exporter.h b/libdocument/ev-file-exporter.h
index f0e517c..7fadb1a 100644
--- a/libdocument/ev-file-exporter.h
+++ b/libdocument/ev-file-exporter.h
@@ -30,11 +30,33 @@
 G_BEGIN_DECLS
 
 typedef enum {
-        EV_FILE_FORMAT_PS,
-        EV_FILE_FORMAT_PDF,
-        EV_FILE_FORMAT_UNKNOWN
+	EV_FILE_FORMAT_UNKNOWN,
+	EV_FILE_FORMAT_PS,
+	EV_FILE_FORMAT_PDF
 } EvFileExporterFormat;
 
+typedef enum {
+	EV_FILE_EXPORTER_CAN_PAGE_SET     = 1 << 0,
+	EV_FILE_EXPORTER_CAN_COPIES       = 1 << 1,
+	EV_FILE_EXPORTER_CAN_COLLATE      = 1 << 2,
+	EV_FILE_EXPORTER_CAN_REVERSE      = 1 << 3,
+	EV_FILE_EXPORTER_CAN_SCALE        = 1 << 4,
+	EV_FILE_EXPORTER_CAN_GENERATE_PDF = 1 << 5,
+	EV_FILE_EXPORTER_CAN_GENERATE_PS  = 1 << 6,
+	EV_FILE_EXPORTER_CAN_PREVIEW      = 1 << 7,
+	EV_FILE_EXPORTER_CAN_NUMBER_UP    = 1 << 8
+} EvFileExporterCapabilities;
+
+typedef struct {
+	EvFileExporterFormat format;
+	const gchar         *filename;
+	gint                 first_page;
+	gint                 last_page;
+	gdouble              paper_width;
+	gdouble              paper_height;
+	gboolean             duplex;
+} EvFileExporterContext;
+
 #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))
@@ -42,42 +64,28 @@ typedef enum {
 #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 _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);
+        void                       (* begin)            (EvFileExporter        *exporter,
+							 EvFileExporterContext *fc);
+        void                       (* do_page)          (EvFileExporter        *exporter,
+							 EvRenderContext       *rc);
+        void                       (* end)              (EvFileExporter        *exporter);
+	EvFileExporterCapabilities (* get_capabilities) (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);
+GType                      ev_file_exporter_get_type         (void) G_GNUC_CONST;
+void                       ev_file_exporter_begin            (EvFileExporter        *exporter,
+							      EvFileExporterContext *fc);
+void                       ev_file_exporter_do_page          (EvFileExporter        *exporter,
+							      EvRenderContext       *rc);
+void                       ev_file_exporter_end              (EvFileExporter        *exporter);
+EvFileExporterCapabilities ev_file_exporter_get_capabilities (EvFileExporter        *exporter);
 
 G_END_DECLS