diff options
Diffstat (limited to 'backend/dvi/dvi-document.c')
| -rw-r--r-- | backend/dvi/dvi-document.c | 98 |
1 files changed, 97 insertions, 1 deletions
diff --git a/backend/dvi/dvi-document.c b/backend/dvi/dvi-document.c index 56d8bbb..c85e4f5 100644 --- a/backend/dvi/dvi-document.c +++ b/backend/dvi/dvi-document.c @@ -20,6 +20,7 @@ #include "dvi-document.h" #include "ev-document-thumbnails.h" #include "ev-document-misc.h" +#include "ev-file-exporter.h" #include "mdvi.h" #include "fonts.h" @@ -53,12 +54,17 @@ struct _DviDocument double base_height; gchar *uri; + + /* PDF exporter */ + gchar *exporter_filename; + GString *exporter_opts; }; typedef struct _DviDocumentClass DviDocumentClass; static void dvi_document_document_iface_init (EvDocumentIface *iface); static void dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); +static void dvi_document_file_exporter_iface_init (EvFileExporterIface *iface); static void dvi_document_get_page_size (EvDocument *document, int page, double *width, @@ -71,7 +77,8 @@ G_DEFINE_TYPE_WITH_CODE (DviDocument, dvi_document, G_TYPE_OBJECT, { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, dvi_document_document_iface_init); - G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, dvi_document_document_thumbnails_iface_init) + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, dvi_document_document_thumbnails_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER, dvi_document_file_exporter_iface_init); }); static gboolean @@ -217,6 +224,12 @@ dvi_document_finalize (GObject *object) if (dvi_document->params) g_free (dvi_document->params); + if (dvi_document->exporter_filename) + g_free (dvi_document->exporter_filename); + + if (dvi_document->exporter_opts) + g_string_free (dvi_document->exporter_opts, TRUE); + g_free (dvi_document->uri); G_OBJECT_CLASS (dvi_document_parent_class)->finalize (object); @@ -348,6 +361,86 @@ dvi_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) iface->get_dimensions = dvi_document_thumbnails_get_dimensions; } +/* EvFileExporterIface */ +static gboolean +dvi_document_file_exporter_format_supported (EvFileExporter *exporter, + EvFileExporterFormat format) +{ + return (format == EV_FILE_FORMAT_PDF); /* only exporting to PDF is implemented. */ +} + +static void +dvi_document_file_exporter_begin (EvFileExporter *exporter, + EvFileExporterFormat format, + const char *filename, /* for storing the temp pdf file */ + int first_page, + int last_page, + double width, + double height, + gboolean duplex) +{ + DviDocument *dvi_document = DVI_DOCUMENT(exporter); + + if (dvi_document->exporter_filename) + g_free (dvi_document->exporter_filename); + dvi_document->exporter_filename = g_strdup(filename); + + if (dvi_document->exporter_opts) { + g_string_free (dvi_document->exporter_opts, TRUE); + } + dvi_document->exporter_opts = g_string_new ("-s "); +} + +static void +dvi_document_file_exporter_do_page (EvFileExporter *exporter, EvRenderContext *rc) +{ + DviDocument *dvi_document = DVI_DOCUMENT(exporter); + + g_string_append_printf(dvi_document->exporter_opts, "%d,", (rc->page)+1); +} + +static void +dvi_document_file_exporter_end (EvFileExporter *exporter) +{ + gchar *command_line; + gint exit_stat; + GError *err = NULL; + gboolean success; + + DviDocument *dvi_document = DVI_DOCUMENT(exporter); + + command_line = g_strdup_printf ("dvipdfm %s -o %s %s", /* dvipdfm -s 1,2,.., -o exporter_filename dvi_filename */ + dvi_document->exporter_opts->str, + dvi_document->exporter_filename, + dvi_document->context->filename); + + success = g_spawn_command_line_sync (command_line, + NULL, + NULL, + &exit_stat, + &err); + + g_free(command_line); + + if (success == FALSE) { + g_warning (_("Error: %s"), err->message); + } else if (exit_stat != 0) { + g_warning (_("Error: dvipdfm exited with non-zero status.")); + } + + if (err) + g_error_free(err); +} + +static void +dvi_document_file_exporter_iface_init (EvFileExporterIface *iface) +{ + iface->format_supported = dvi_document_file_exporter_format_supported; + iface->begin = dvi_document_file_exporter_begin; + iface->do_page = dvi_document_file_exporter_do_page; + iface->end = dvi_document_file_exporter_end; +} + #define RGB2ULONG(r,g,b) ((0xFF<<24)|(r<<16)|(g<<8)|(b)) static gboolean @@ -524,4 +617,7 @@ dvi_document_init (DviDocument *dvi_document) { dvi_document->context = NULL; dvi_document_init_params (dvi_document); + + dvi_document->exporter_filename = NULL; + dvi_document->exporter_opts = NULL; } |