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 struct ImageLoaderPDF {
30 ImageLoaderBackendCbAreaUpdated area_updated_cb;
31 ImageLoaderBackendCbSize size_cb;
32 ImageLoaderBackendCbAreaPrepared area_prepared_cb;
35 guint requested_width;
36 guint requested_height;
42 static gboolean image_loader_pdf_load(gpointer loader, const guchar *buf, gsize count, GError **)
44 auto ld = static_cast<ImageLoaderPDF *>(loader);
45 GError *poppler_error = nullptr;
47 PopplerDocument *document;
48 gdouble width, height;
49 cairo_surface_t *surface;
54 document = poppler_document_new_from_data((gchar *)(buf), count, nullptr, &poppler_error);
58 log_printf("warning: pdf reader error: %s\n", poppler_error->message);
59 g_error_free(poppler_error);
63 page_total = poppler_document_get_n_pages(document);
66 ld->page_total = page_total;
69 page = poppler_document_get_page(document, ld->page_num);
70 poppler_page_get_size(page, &width, &height);
72 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
73 cr = cairo_create(surface);
74 poppler_page_render(page, cr);
76 cairo_set_operator(cr, CAIRO_OPERATOR_DEST_OVER);
77 cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
80 ld->pixbuf = gdk_pixbuf_get_from_surface(surface, 0, 0, width, height);
81 ld->area_updated_cb(loader, 0, 0, width, height, ld->data);
84 cairo_surface_destroy(surface);
89 g_object_unref(document);
94 static gpointer image_loader_pdf_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
96 auto loader = g_new0(ImageLoaderPDF, 1);
97 loader->area_updated_cb = area_updated_cb;
98 loader->size_cb = size_cb;
99 loader->area_prepared_cb = area_prepared_cb;
101 loader->page_num = 0;
105 static void image_loader_pdf_set_size(gpointer loader, int width, int height)
107 auto ld = static_cast<ImageLoaderPDF *>(loader);
108 ld->requested_width = width;
109 ld->requested_height = height;
112 static GdkPixbuf* image_loader_pdf_get_pixbuf(gpointer loader)
114 auto ld = static_cast<ImageLoaderPDF *>(loader);
118 static gchar* image_loader_pdf_get_format_name(gpointer)
120 return g_strdup("pdf");
123 static gchar** image_loader_pdf_get_format_mime_types(gpointer)
125 static const gchar *mime[] = {"application/pdf", nullptr};
126 return g_strdupv(const_cast<gchar **>(mime));
129 static void image_loader_pdf_set_page_num(gpointer loader, gint page_num)
131 auto ld = static_cast<ImageLoaderPDF *>(loader);
133 ld->page_num = page_num;
136 static gint image_loader_pdf_get_page_total(gpointer loader)
138 auto ld = static_cast<ImageLoaderPDF *>(loader);
140 return ld->page_total;
143 static gboolean image_loader_pdf_close(gpointer, GError **)
148 static void image_loader_pdf_abort(gpointer loader)
150 auto ld = static_cast<ImageLoaderPDF *>(loader);
154 static void image_loader_pdf_free(gpointer loader)
156 auto ld = static_cast<ImageLoaderPDF *>(loader);
157 if (ld->pixbuf) g_object_unref(ld->pixbuf);
161 void image_loader_backend_set_pdf(ImageLoaderBackend *funcs)
163 funcs->loader_new = image_loader_pdf_new;
164 funcs->set_size = image_loader_pdf_set_size;
165 funcs->load = image_loader_pdf_load;
166 funcs->write = nullptr;
167 funcs->get_pixbuf = image_loader_pdf_get_pixbuf;
168 funcs->close = image_loader_pdf_close;
169 funcs->abort = image_loader_pdf_abort;
170 funcs->free = image_loader_pdf_free;
171 funcs->get_format_name = image_loader_pdf_get_format_name;
172 funcs->get_format_mime_types = image_loader_pdf_get_format_mime_types;
173 funcs->set_page_num = image_loader_pdf_set_page_num;
174 funcs->get_page_total = image_loader_pdf_get_page_total;
178 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */