X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=backend%2Fdjvu%2Fdjvu-document.c;h=fc1ccaacd95e3c3a2ac34b007af189bad2516300;hb=b976215ea272cf25a85a070a1c0f769e62d72325;hp=df5ecb345949cb9ed3c1732871b497c07275c5f2;hpb=f897c94aa9ceb0cca024bea351a2821d2f0b4a57;p=evince.git diff --git a/backend/djvu/djvu-document.c b/backend/djvu/djvu-document.c index df5ecb34..fc1ccaac 100644 --- a/backend/djvu/djvu-document.c +++ b/backend/djvu/djvu-document.c @@ -22,12 +22,11 @@ #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" -#include -#include #include #include #include @@ -49,6 +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); @@ -56,7 +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); }); @@ -258,7 +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); @@ -328,61 +335,65 @@ djvu_document_document_iface_init (EvDocumentIface *iface) static void djvu_document_thumbnails_get_dimensions (EvDocumentThumbnails *document, - gint page, - gint suggested_width, - gint *width, - gint *height) + EvRenderContext *rc, + gint *width, + gint *height) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); - gdouble p_width, p_height; - gdouble page_ratio; + gdouble page_width, page_height; - djvu_document_get_page_size (EV_DOCUMENT(djvu_document), page, &p_width, &p_height); + djvu_document_get_page_size (EV_DOCUMENT(djvu_document), rc->page, + &page_width, &page_height); - page_ratio = p_height / p_width; - *width = suggested_width; - *height = (gint) (suggested_width * page_ratio); - - return; + if (rc->rotation == 90 || rc->rotation == 270) { + *width = (gint) (page_height * rc->scale); + *height = (gint) (page_width * rc->scale); + } else { + *width = (gint) (page_width * rc->scale); + *height = (gint) (page_height * rc->scale); + } } static GdkPixbuf * -djvu_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, - gint page, - gint rotation, - gint width, - gboolean border) +djvu_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, + EvRenderContext *rc, + gboolean border) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); GdkPixbuf *pixbuf, *rotated_pixbuf; + gdouble page_width, page_height; gint thumb_width, thumb_height; - guchar *pixels; g_return_val_if_fail (djvu_document->d_document, NULL); + + djvu_document_get_page_size (EV_DOCUMENT(djvu_document), rc->page, + &page_width, &page_height); - djvu_document_thumbnails_get_dimensions (document, page, width, &thumb_width, &thumb_height); - + thumb_width = (gint) (page_width * rc->scale); + thumb_height = (gint) (page_height * rc->scale); + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, thumb_width, thumb_height); gdk_pixbuf_fill (pixbuf, 0xffffffff); pixels = gdk_pixbuf_get_pixels (pixbuf); - while (ddjvu_thumbnail_status (djvu_document->d_document, page, 1) < DDJVU_JOB_OK) + while (ddjvu_thumbnail_status (djvu_document->d_document, rc->page, 1) < DDJVU_JOB_OK) djvu_handle_events(djvu_document, TRUE); - ddjvu_thumbnail_render (djvu_document->d_document, page, + ddjvu_thumbnail_render (djvu_document->d_document, rc->page, &thumb_width, &thumb_height, djvu_document->d_format, gdk_pixbuf_get_rowstride (pixbuf), (gchar *)pixels); - rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf, 360 - rotation); + rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf, 360 - rc->rotation); g_object_unref (pixbuf); if (border) { GdkPixbuf *tmp_pixbuf = rotated_pixbuf; - rotated_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf); + + rotated_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf); g_object_unref (tmp_pixbuf); } @@ -396,12 +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; }