2 * Copyright (C) 20018 - The Geeqie Team
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #include "image-load.h"
24 #include "image_load_pdf.h"
27 #include <poppler/glib/poppler.h>
29 typedef struct _ImageLoaderPDF ImageLoaderPDF;
30 struct _ImageLoaderPDF {
31 ImageLoaderBackendCbAreaUpdated area_updated_cb;
32 ImageLoaderBackendCbSize size_cb;
33 ImageLoaderBackendCbAreaPrepared area_prepared_cb;
36 guint requested_width;
37 guint requested_height;
43 static gboolean image_loader_pdf_load(gpointer loader, const guchar *buf, gsize count, GError **error)
45 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
46 GError *poppler_error = NULL;
48 PopplerDocument *document;
49 gdouble width, height;
50 cairo_surface_t *surface;
55 document = poppler_document_new_from_data((gchar *)buf, count, NULL, &poppler_error);
59 log_printf("warning: pdf reader error: %s\n", poppler_error->message);
60 g_error_free(poppler_error);
64 page_total = poppler_document_get_n_pages(document);
67 ld->page_total = page_total;
70 page = poppler_document_get_page(document, ld->page_num);
71 poppler_page_get_size(page, &width, &height);
73 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
74 cr = cairo_create(surface);
75 poppler_page_render(page, cr);
77 cairo_set_operator(cr, CAIRO_OPERATOR_DEST_OVER);
78 cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
81 ld->pixbuf = gdk_pixbuf_get_from_surface(surface, 0, 0, width, height);
82 ld->area_updated_cb(loader, 0, 0, width, height, ld->data);
85 cairo_surface_destroy(surface);
90 g_object_unref(document);
95 static gpointer image_loader_pdf_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
97 ImageLoaderPDF *loader = g_new0(ImageLoaderPDF, 1);
98 loader->area_updated_cb = area_updated_cb;
99 loader->size_cb = size_cb;
100 loader->area_prepared_cb = area_prepared_cb;
102 loader->page_num = 0;
103 return (gpointer) loader;
106 static void image_loader_pdf_set_size(gpointer loader, int width, int height)
108 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
109 ld->requested_width = width;
110 ld->requested_height = height;
113 static GdkPixbuf* image_loader_pdf_get_pixbuf(gpointer loader)
115 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
119 static gchar* image_loader_pdf_get_format_name(gpointer loader)
121 return g_strdup("pdf");
124 static gchar** image_loader_pdf_get_format_mime_types(gpointer loader)
126 static gchar *mime[] = {"application/pdf", NULL};
127 return g_strdupv(mime);
130 static void image_loader_pdf_set_page_num(gpointer loader, gint page_num)
132 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
134 ld->page_num = page_num;
137 static gint image_loader_pdf_get_page_total(gpointer loader)
139 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
141 return ld->page_total;
144 static gboolean image_loader_pdf_close(gpointer loader, GError **error)
149 static void image_loader_pdf_abort(gpointer loader)
151 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
155 static void image_loader_pdf_free(gpointer loader)
157 ImageLoaderPDF *ld = (ImageLoaderPDF *) loader;
158 if (ld->pixbuf) g_object_unref(ld->pixbuf);
162 void image_loader_backend_set_pdf(ImageLoaderBackend *funcs)
164 funcs->loader_new = image_loader_pdf_new;
165 funcs->set_size = image_loader_pdf_set_size;
166 funcs->load = image_loader_pdf_load;
168 funcs->get_pixbuf = image_loader_pdf_get_pixbuf;
169 funcs->close = image_loader_pdf_close;
170 funcs->abort = image_loader_pdf_abort;
171 funcs->free = image_loader_pdf_free;
172 funcs->get_format_name = image_loader_pdf_get_format_name;
173 funcs->get_format_mime_types = image_loader_pdf_get_format_mime_types;
174 funcs->set_page_num = image_loader_pdf_set_page_num;
175 funcs->get_page_total = image_loader_pdf_get_page_total;
179 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */