From abe946bae0c2b6ed275eaba528cee0d65f7984d1 Mon Sep 17 00:00:00 2001 From: Alaska Subedi Date: Mon, 14 May 2007 16:35:51 +0000 Subject: [PATCH] Implemented printing with djvu. Bug #437998. 2007-05-14 Alaska Subedi * backend/djvu/djvu-document-private.h: * backend/djvu/djvu-document.c: (G_DEFINE_TYPE_WITH_CODE), (djvu_document_finalize), (djvu_document_file_exporter_format_supported), (djvu_document_file_exporter_begin), (djvu_document_file_exporter_do_page), (djvu_document_file_exporter_end), (djvu_document_file_exporter_iface_init), (djvu_document_init): Implemented printing with djvu. Bug #437998. svn path=/trunk/; revision=2458 --- ChangeLog | 13 +++++ backend/djvu/djvu-document-private.h | 4 ++ backend/djvu/djvu-document.c | 82 +++++++++++++++++++++++++++- 3 files changed, 98 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index 6ce79339..b8c0e028 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +2007-05-14 Alaska Subedi + + * backend/djvu/djvu-document-private.h: + * backend/djvu/djvu-document.c: (G_DEFINE_TYPE_WITH_CODE), + (djvu_document_finalize), + (djvu_document_file_exporter_format_supported), + (djvu_document_file_exporter_begin), + (djvu_document_file_exporter_do_page), + (djvu_document_file_exporter_end), + (djvu_document_file_exporter_iface_init), (djvu_document_init): + + Implemented printing with djvu. Bug #437998. + 2007-05-14 Carlos Garcia Campos * backend/impress/zip.c: diff --git a/backend/djvu/djvu-document-private.h b/backend/djvu/djvu-document-private.h index 3fa579f7..37651ef7 100644 --- a/backend/djvu/djvu-document-private.h +++ b/backend/djvu/djvu-document-private.h @@ -36,6 +36,10 @@ struct _DjvuDocument { gchar *uri; DjvuText *search; + + /* PS exporter */ + gchar *ps_filename; + GString *opts; }; int djvu_document_get_n_pages (EvDocument *document); diff --git a/backend/djvu/djvu-document.c b/backend/djvu/djvu-document.c index 8b45514b..fc1ccaac 100644 --- a/backend/djvu/djvu-document.c +++ b/backend/djvu/djvu-document.c @@ -22,6 +22,7 @@ #include "djvu-links.h" #include "djvu-document-private.h" #include "ev-document-thumbnails.h" +#include "ev-file-exporter.h" #include "ev-document-misc.h" #include "ev-document-find.h" #include "ev-document-links.h" @@ -47,6 +48,7 @@ typedef struct _DjvuDocumentClass DjvuDocumentClass; static void djvu_document_document_iface_init (EvDocumentIface *iface); static void djvu_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); +static void djvu_document_file_exporter_iface_init (EvFileExporterIface *iface); static void djvu_document_find_iface_init (EvDocumentFindIface *iface); static void djvu_document_document_links_iface_init (EvDocumentLinksIface *iface); @@ -54,7 +56,8 @@ G_DEFINE_TYPE_WITH_CODE (DjvuDocument, djvu_document, G_TYPE_OBJECT, { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, djvu_document_document_iface_init); - G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, djvu_document_document_thumbnails_iface_init) + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, djvu_document_document_thumbnails_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER, djvu_document_file_exporter_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND, djvu_document_find_iface_init); G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS, djvu_document_document_links_iface_init); }); @@ -256,7 +259,13 @@ djvu_document_finalize (GObject *object) if (djvu_document->d_document) ddjvu_document_release (djvu_document->d_document); + + if (djvu_document->opts) + g_string_free (djvu_document->opts, TRUE); + if (djvu_document->ps_filename) + g_free (djvu_document->ps_filename); + ddjvu_context_release (djvu_document->d_context); ddjvu_format_release (djvu_document->d_format); g_free (djvu_document->uri); @@ -398,12 +407,83 @@ djvu_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) iface->get_dimensions = djvu_document_thumbnails_get_dimensions; } +/* EvFileExporterIface */ +static gboolean +djvu_document_file_exporter_format_supported (EvFileExporter *exporter, + EvFileExporterFormat format) +{ + return (format == EV_FILE_FORMAT_PS); // only exporting to PS is implemented. +} + +static void +djvu_document_file_exporter_begin (EvFileExporter *exporter, + EvFileExporterFormat format, + const char *filename, /* for storing the temp ps file */ + int first_page, + int last_page, + double width, + double height, + gboolean duplex) +{ + DjvuDocument *djvu_document = DJVU_DOCUMENT (exporter); + + if (djvu_document->ps_filename) + g_free (djvu_document->ps_filename); + djvu_document->ps_filename = g_strdup(filename); + + g_string_assign(djvu_document->opts, "-page="); +} + +static void +djvu_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc) +{ + DjvuDocument *djvu_document = DJVU_DOCUMENT (exporter); + + g_string_append_printf(djvu_document->opts, "%d,", (rc->page) + 1); +} + +static void +djvu_document_file_exporter_end (EvFileExporter *exporter) +{ + int d_optc = 1; + const char *d_optv[d_optc]; + + DjvuDocument *djvu_document = DJVU_DOCUMENT (exporter); + + FILE *fn = fopen(djvu_document->ps_filename, "w"); + if (fn == NULL) { + g_warning(_("Cannot open file “%s”."), djvu_document->ps_filename); + return; + } + + d_optv[0] = djvu_document->opts->str; + + ddjvu_job_t * job = ddjvu_document_print(djvu_document->d_document, fn, d_optc, d_optv); + while (!ddjvu_job_done(job) ) { + djvu_handle_events (djvu_document, TRUE); + } + + fclose(fn); +} + +static void +djvu_document_file_exporter_iface_init (EvFileExporterIface *iface) +{ + iface->format_supported = djvu_document_file_exporter_format_supported; + iface->begin = djvu_document_file_exporter_begin; + iface->do_page = djvu_document_file_exporter_do_page; + iface->end = djvu_document_file_exporter_end; +} + static void djvu_document_init (DjvuDocument *djvu_document) { djvu_document->d_context = ddjvu_context_create ("Evince"); djvu_document->d_format = ddjvu_format_create (DDJVU_FORMAT_RGB24, 0, 0); ddjvu_format_set_row_order (djvu_document->d_format,1); + + djvu_document->ps_filename = NULL; + djvu_document->opts = g_string_new (""); djvu_document->d_document = NULL; } -- 2.43.5