X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=djvu%2Fdjvu-document.c;h=ad18555960a6332d7720dc2e686b4f9ceb495d64;hb=67f80b85d70a6d577e36c9578b854003a7d910ca;hp=aa853a71e68d72c1be4518d733c929ac9bf1195f;hpb=560a7e43fe1f899e72130cb4ab1175d325f8e43c;p=evince.git diff --git a/djvu/djvu-document.c b/djvu/djvu-document.c index aa853a71..ad185559 100644 --- a/djvu/djvu-document.c +++ b/djvu/djvu-document.c @@ -18,12 +18,20 @@ */ #include "djvu-document.h" +#include "djvu-text.h" +#include "djvu-links.h" +#include "djvu-document-private.h" #include "ev-document-thumbnails.h" #include "ev-document-misc.h" +#include "ev-document-find.h" +#include "ev-document-links.h" #include +#include #include #include +#include +#include #define SCALE_FACTOR 0.2 @@ -37,31 +45,52 @@ struct _DjvuDocumentClass GObjectClass parent_class; }; -struct _DjvuDocument -{ - GObject parent_instance; - - ddjvu_context_t *d_context; - ddjvu_document_t *d_document; - ddjvu_format_t *d_format; -}; - 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_find_iface_init (EvDocumentFindIface *iface); +static void djvu_document_document_links_iface_init (EvDocumentLinksIface *iface); 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_FIND, djvu_document_find_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS, djvu_document_document_links_iface_init); }); + +void +djvu_handle_events (DjvuDocument *djvu_document, int wait) +{ + ddjvu_context_t *ctx = djvu_document->d_context; + const ddjvu_message_t *msg; + if (!ctx) + return; + if (wait) + msg = ddjvu_message_wait (ctx); + while ((msg = ddjvu_message_peek (ctx))) { + switch (msg->m_any.tag) { + case DDJVU_ERROR: + g_warning ("DjvuLibre error: %s", + msg->m_error.message); + if (msg->m_error.filename) + g_warning ("DjvuLibre error: %s:%d", + msg->m_error.filename, + msg->m_error.lineno); + default: + break; + } + ddjvu_message_pop (ctx); + } +} + static gboolean djvu_document_load (EvDocument *document, - const char *uri, - GError **error) + const char *uri, + GError **error) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); ddjvu_document_t *doc; @@ -81,10 +110,10 @@ djvu_document_load (EvDocument *document, djvu_document->d_document = doc; - while (!ddjvu_document_decoding_done (djvu_document->d_document)) { - ddjvu_message_wait (djvu_document->d_context); - ddjvu_message_pop (djvu_document->d_context); - } + while (!ddjvu_document_decoding_done (djvu_document->d_document)) + djvu_handle_events(djvu_document, TRUE); + g_free (djvu_document->uri); + djvu_document->uri = g_strdup (uri); return TRUE; } @@ -92,14 +121,15 @@ djvu_document_load (EvDocument *document, static gboolean djvu_document_save (EvDocument *document, - const char *uri, - GError **error) + const char *uri, + GError **error) { - g_warning ("djvu_document_save not implemented"); /* FIXME */ - return TRUE; + DjvuDocument *djvu_document = DJVU_DOCUMENT (document); + + return ev_xfer_uri_simple (djvu_document->uri, uri, error); } -static int +int djvu_document_get_n_pages (EvDocument *document) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); @@ -111,37 +141,33 @@ djvu_document_get_n_pages (EvDocument *document) static void djvu_document_get_page_size (EvDocument *document, - int page, - double *width, - double *height) + int page, + double *width, + double *height) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); - - ddjvu_page_t *d_page; + ddjvu_pageinfo_t info; + ddjvu_status_t r; g_return_if_fail (djvu_document->d_document); - d_page = ddjvu_page_create_by_pageno (djvu_document->d_document, page); + while ((r = ddjvu_document_get_pageinfo(djvu_document->d_document, page, &info)) < DDJVU_JOB_OK) + djvu_handle_events(djvu_document, TRUE); - while (!ddjvu_page_decoding_done (d_page)) { - ddjvu_message_wait (djvu_document->d_context); - ddjvu_message_pop (djvu_document->d_context); - } + if (r >= DDJVU_JOB_FAILED) + djvu_handle_events(djvu_document, TRUE); - if (width) - *width = ddjvu_page_get_width (d_page) * SCALE_FACTOR; - if (height) - *height = ddjvu_page_get_height (d_page) * SCALE_FACTOR; - - ddjvu_page_release (d_page); + *width = info.width * SCALE_FACTOR; + *height = info.height * SCALE_FACTOR; } static GdkPixbuf * djvu_document_render_pixbuf (EvDocument *document, - int page, gdouble scale) + EvRenderContext *rc) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); GdkPixbuf *pixbuf; + GdkPixbuf *rotated_pixbuf; ddjvu_rect_t rrect; ddjvu_rect_t prect; @@ -149,15 +175,13 @@ djvu_document_render_pixbuf (EvDocument *document, double page_width, page_height; - d_page = ddjvu_page_create_by_pageno (djvu_document->d_document, page); + d_page = ddjvu_page_create_by_pageno (djvu_document->d_document, rc->page); - while (!ddjvu_page_decoding_done (d_page)) { - ddjvu_message_wait (djvu_document->d_context); - ddjvu_message_pop (djvu_document->d_context); - } + while (!ddjvu_page_decoding_done (d_page)) + djvu_handle_events(djvu_document, TRUE); - page_width = ddjvu_page_get_width (d_page) * scale * SCALE_FACTOR; - page_height = ddjvu_page_get_height (d_page) * scale * SCALE_FACTOR; + page_width = ddjvu_page_get_width (d_page) * rc->scale * SCALE_FACTOR; + page_height = ddjvu_page_get_height (d_page) * rc->scale * SCALE_FACTOR; pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, page_width, page_height); @@ -172,8 +196,10 @@ djvu_document_render_pixbuf (EvDocument *document, gdk_pixbuf_get_rowstride (pixbuf), (gchar *)gdk_pixbuf_get_pixels (pixbuf)); - - return pixbuf; + rotated_pixbuf = gdk_pixbuf_rotate_simple (pixbuf, 360 - rc->rotation); + g_object_unref (pixbuf); + + return rotated_pixbuf; } static void @@ -186,6 +212,7 @@ djvu_document_finalize (GObject *object) ddjvu_context_release (djvu_document->d_context); ddjvu_format_release (djvu_document->d_format); + g_free (djvu_document->uri); G_OBJECT_CLASS (djvu_document_parent_class)->finalize (object); } @@ -201,7 +228,30 @@ djvu_document_class_init (DjvuDocumentClass *klass) static gboolean djvu_document_can_get_text (EvDocument *document) { - return FALSE; + return TRUE; +} + + +static char * +djvu_document_get_text (EvDocument *document, int page, EvRectangle *rect) +{ + DjvuDocument *djvu_document = DJVU_DOCUMENT (document); + double width, height; + EvRectangle rectangle; + char* text; + + djvu_document_get_page_size (document, page, &width, &height); + rectangle.x1 = rect->x1 / SCALE_FACTOR; + rectangle.y1 = (height - rect->y2) / SCALE_FACTOR; + rectangle.x2 = rect->x2 / SCALE_FACTOR; + rectangle.y2 = (height - rect->y1) / SCALE_FACTOR; + + text = djvu_text_copy (djvu_document, page, &rectangle); + + if (text == NULL) + text = g_strdup (""); + + return text; } static EvDocumentInfo * @@ -220,6 +270,7 @@ djvu_document_document_iface_init (EvDocumentIface *iface) iface->load = djvu_document_load; iface->save = djvu_document_save; iface->can_get_text = djvu_document_can_get_text; + iface->get_text = djvu_document_get_text; iface->get_n_pages = djvu_document_get_n_pages; iface->get_page_size = djvu_document_get_page_size; iface->render_pixbuf = djvu_document_render_pixbuf; @@ -249,11 +300,12 @@ djvu_document_thumbnails_get_dimensions (EvDocumentThumbnails *document, static GdkPixbuf * djvu_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, gint page, + gint rotation, gint width, gboolean border) { DjvuDocument *djvu_document = DJVU_DOCUMENT (document); - GdkPixbuf *pixbuf; + GdkPixbuf *pixbuf, *rotated_pixbuf; gint thumb_width, thumb_height; guchar *pixels; @@ -262,28 +314,30 @@ djvu_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, djvu_document_thumbnails_get_dimensions (document, page, width, &thumb_width, &thumb_height); - if (border) { - pixbuf = ev_document_misc_get_thumbnail_frame (thumb_width, thumb_height, NULL); - pixels = gdk_pixbuf_get_pixels (pixbuf) + gdk_pixbuf_get_rowstride (pixbuf) + 4; - } else { - pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, - thumb_width, thumb_height); - gdk_pixbuf_fill (pixbuf, 0xffffffff); - pixels = gdk_pixbuf_get_pixels (pixbuf); - } + 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) { - ddjvu_message_wait (djvu_document->d_context); - ddjvu_message_pop (djvu_document->d_context); - } + while (ddjvu_thumbnail_status (djvu_document->d_document, page, 1) < DDJVU_JOB_OK) + djvu_handle_events(djvu_document, TRUE); ddjvu_thumbnail_render (djvu_document->d_document, 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); + g_object_unref (pixbuf); + + if (border) { + GdkPixbuf *tmp_pixbuf = rotated_pixbuf; + rotated_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, 0, tmp_pixbuf); + g_object_unref (tmp_pixbuf); + } - return pixbuf; + return rotated_pixbuf; } static void @@ -303,3 +357,122 @@ djvu_document_init (DjvuDocument *djvu_document) djvu_document->d_document = NULL; } +static void +djvu_document_find_begin (EvDocumentFind *document, + int page, + const char *search_string, + gboolean case_sensitive) +{ + DjvuDocument *djvu_document = DJVU_DOCUMENT (document); + + if (djvu_document->search && + strcmp (search_string, djvu_text_get_text (djvu_document->search)) == 0) + return; + + if (djvu_document->search) + djvu_text_free (djvu_document->search); + + djvu_document->search = djvu_text_new (djvu_document, + page, + case_sensitive, + search_string); +} + +static int +djvu_document_find_get_n_results (EvDocumentFind *document_find, int page) +{ + DjvuText *search = DJVU_DOCUMENT (document_find)->search; + + if (search) { + return djvu_text_n_results (search, page); + } else { + return 0; + } +} + +static gboolean +djvu_document_find_get_result (EvDocumentFind *document_find, + int page, + int n_result, + EvRectangle *rectangle) +{ + DjvuDocument *djvu_document = DJVU_DOCUMENT (document_find); + DjvuText *search = djvu_document->search; + EvRectangle *r; + double width, height; + + if (search == NULL) + return FALSE; + + r = djvu_text_get_result (search, page, n_result); + if (r == NULL) + return FALSE; + + djvu_document_get_page_size (EV_DOCUMENT (djvu_document), + page, &width, &height); + rectangle->x1 = r->x1 * SCALE_FACTOR; + rectangle->y1 = height - r->y2 * SCALE_FACTOR; + rectangle->x2 = r->x2 * SCALE_FACTOR; + rectangle->y2 = height - r->y1 * SCALE_FACTOR; + + return TRUE; +} + +static int +djvu_document_find_page_has_results (EvDocumentFind *document_find, + int page) +{ + DjvuText *search = DJVU_DOCUMENT (document_find)->search; + + return search && djvu_text_has_results (search, page); +} + +static double +djvu_document_find_get_progress (EvDocumentFind *document_find) +{ + DjvuText *search = DJVU_DOCUMENT (document_find)->search; + + if (search == NULL) { + return 0; + } + + return djvu_text_get_progress (search); +} + +static void +djvu_document_find_cancel (EvDocumentFind *document) +{ + DjvuDocument *djvu_document = DJVU_DOCUMENT (document); + + if (djvu_document->search) { + djvu_text_free (djvu_document->search); + djvu_document->search = NULL; + } +} + +static void +djvu_document_find_iface_init (EvDocumentFindIface *iface) +{ + iface->begin = djvu_document_find_begin; + iface->get_n_results = djvu_document_find_get_n_results; + iface->get_result = djvu_document_find_get_result; + iface->page_has_results = djvu_document_find_page_has_results; + iface->get_progress = djvu_document_find_get_progress; + iface->cancel = djvu_document_find_cancel; +} + +static GList * +djvu_document_links_get_links (EvDocumentLinks *document_links, + gint page) +{ + return djvu_links_get_links (document_links, page, SCALE_FACTOR); +} + +static void +djvu_document_document_links_iface_init (EvDocumentLinksIface *iface) +{ + iface->has_document_links = djvu_links_has_document_links; + iface->get_links_model = djvu_links_get_links_model; + iface->get_links = djvu_document_links_get_links; + iface->find_link_dest = djvu_links_find_link_dest; +}