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.
24 #include "image-load-pdf.h"
27 #include <poppler/glib/poppler.h>
30 #include "image-load.h"
32 struct ImageLoaderPDF {
33 ImageLoaderBackendCbAreaUpdated area_updated_cb;
34 ImageLoaderBackendCbSize size_cb;
35 ImageLoaderBackendCbAreaPrepared area_prepared_cb;
38 guint requested_width;
39 guint requested_height;
45 static gboolean image_loader_pdf_load(gpointer loader, const guchar *buf, gsize count, GError **)
47 auto ld = static_cast<ImageLoaderPDF *>(loader);
48 GError *poppler_error = nullptr;
50 PopplerDocument *document;
53 cairo_surface_t *surface;
58 document = poppler_document_new_from_data((gchar *)(buf), count, nullptr, &poppler_error);
62 log_printf("warning: pdf reader error: %s\n", poppler_error->message);
63 g_error_free(poppler_error);
67 page_total = poppler_document_get_n_pages(document);
70 ld->page_total = page_total;
73 page = poppler_document_get_page(document, ld->page_num);
74 poppler_page_get_size(page, &width, &height);
76 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
77 cr = cairo_create(surface);
78 poppler_page_render(page, cr);
80 cairo_set_operator(cr, CAIRO_OPERATOR_DEST_OVER);
81 cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
84 ld->pixbuf = gdk_pixbuf_get_from_surface(surface, 0, 0, width, height);
85 ld->area_updated_cb(loader, 0, 0, width, height, ld->data);
88 cairo_surface_destroy(surface);
93 g_object_unref(document);
98 static gpointer image_loader_pdf_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
100 auto loader = g_new0(ImageLoaderPDF, 1);
101 loader->area_updated_cb = area_updated_cb;
102 loader->size_cb = size_cb;
103 loader->area_prepared_cb = area_prepared_cb;
105 loader->page_num = 0;
109 static void image_loader_pdf_set_size(gpointer loader, int width, int height)
111 auto ld = static_cast<ImageLoaderPDF *>(loader);
112 ld->requested_width = width;
113 ld->requested_height = height;
116 static GdkPixbuf* image_loader_pdf_get_pixbuf(gpointer loader)
118 auto ld = static_cast<ImageLoaderPDF *>(loader);
122 static gchar* image_loader_pdf_get_format_name(gpointer)
124 return g_strdup("pdf");
127 static gchar** image_loader_pdf_get_format_mime_types(gpointer)
129 static const gchar *mime[] = {"application/pdf", nullptr};
130 return g_strdupv(const_cast<gchar **>(mime));
133 static void image_loader_pdf_set_page_num(gpointer loader, gint page_num)
135 auto ld = static_cast<ImageLoaderPDF *>(loader);
137 ld->page_num = page_num;
140 static gint image_loader_pdf_get_page_total(gpointer loader)
142 auto ld = static_cast<ImageLoaderPDF *>(loader);
144 return ld->page_total;
147 static gboolean image_loader_pdf_close(gpointer, GError **)
152 static void image_loader_pdf_abort(gpointer loader)
154 auto ld = static_cast<ImageLoaderPDF *>(loader);
158 static void image_loader_pdf_free(gpointer loader)
160 auto ld = static_cast<ImageLoaderPDF *>(loader);
161 if (ld->pixbuf) g_object_unref(ld->pixbuf);
165 void image_loader_backend_set_pdf(ImageLoaderBackend *funcs)
167 funcs->loader_new = image_loader_pdf_new;
168 funcs->set_size = image_loader_pdf_set_size;
169 funcs->load = image_loader_pdf_load;
170 funcs->write = nullptr;
171 funcs->get_pixbuf = image_loader_pdf_get_pixbuf;
172 funcs->close = image_loader_pdf_close;
173 funcs->abort = image_loader_pdf_abort;
174 funcs->free = image_loader_pdf_free;
175 funcs->get_format_name = image_loader_pdf_get_format_name;
176 funcs->get_format_mime_types = image_loader_pdf_get_format_mime_types;
177 funcs->set_page_num = image_loader_pdf_set_page_num;
178 funcs->get_page_total = image_loader_pdf_get_page_total;
182 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */