* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include "main.h"
+#include "image-load-pdf.h"
+
+#include <cairo.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gdk/gdk.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <poppler.h>
+#include "debug.h"
#include "image-load.h"
-#include "image-load-pdf.h"
-#ifdef HAVE_PDF
-#include <poppler/glib/poppler.h>
+namespace
+{
-struct ImageLoaderPDF {
- ImageLoaderBackendCbAreaUpdated area_updated_cb;
- ImageLoaderBackendCbSize size_cb;
- ImageLoaderBackendCbAreaPrepared area_prepared_cb;
+struct ImageLoaderPDF : public ImageLoaderBackend
+{
+public:
+ ~ImageLoaderPDF() override;
+
+ void init(AreaUpdatedCb area_updated_cb, SizePreparedCb size_prepared_cb, AreaPreparedCb area_prepared_cb, gpointer data) override;
+ gboolean write(const guchar *buf, gsize &chunk_size, gsize count, GError **error) override;
+ GdkPixbuf *get_pixbuf() override;
+ gchar *get_format_name() override;
+ gchar **get_format_mime_types() override;
+ void set_page_num(gint page_num) override;
+ gint get_page_total() override;
+
+private:
+ AreaUpdatedCb area_updated_cb;
gpointer data;
+
GdkPixbuf *pixbuf;
- guint requested_width;
- guint requested_height;
- gboolean abort;
gint page_num;
gint page_total;
};
-static gboolean image_loader_pdf_load(gpointer loader, const guchar *buf, gsize count, GError **)
+gboolean ImageLoaderPDF::write(const guchar *buf, gsize &chunk_size, gsize count, GError **)
{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
GError *poppler_error = nullptr;
PopplerPage *page;
PopplerDocument *document;
gboolean ret = FALSE;
gint page_total;
+#if POPPLER_CHECK_VERSION(0,82,0)
+ GBytes *bytes = g_bytes_new_static(buf, count);
+ document = poppler_document_new_from_bytes(bytes, nullptr, &poppler_error);
+#else
document = poppler_document_new_from_data((gchar *)(buf), count, nullptr, &poppler_error);
+#endif
if (poppler_error)
{
page_total = poppler_document_get_n_pages(document);
if (page_total > 0)
{
- ld->page_total = page_total;
+ this->page_total = page_total;
}
- page = poppler_document_get_page(document, ld->page_num);
+ page = poppler_document_get_page(document, page_num);
poppler_page_get_size(page, &width, &height);
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_paint(cr);
- ld->pixbuf = gdk_pixbuf_get_from_surface(surface, 0, 0, width, height);
- ld->area_updated_cb(loader, 0, 0, width, height, ld->data);
+ pixbuf = gdk_pixbuf_get_from_surface(surface, 0, 0, width, height);
+ area_updated_cb(nullptr, 0, 0, width, height, data);
cairo_destroy (cr);
cairo_surface_destroy(surface);
g_object_unref(page);
+ chunk_size = count;
ret = TRUE;
}
g_object_unref(document);
+#if POPPLER_CHECK_VERSION(0,82,0)
+ g_bytes_unref(bytes);
+#endif
return ret;
}
-static gpointer image_loader_pdf_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
+void ImageLoaderPDF::init(AreaUpdatedCb area_updated_cb, SizePreparedCb, AreaPreparedCb, gpointer data)
{
- auto loader = g_new0(ImageLoaderPDF, 1);
- loader->area_updated_cb = area_updated_cb;
- loader->size_cb = size_cb;
- loader->area_prepared_cb = area_prepared_cb;
- loader->data = data;
- loader->page_num = 0;
- return loader;
+ this->area_updated_cb = area_updated_cb;
+ this->data = data;
+ page_num = 0;
}
-static void image_loader_pdf_set_size(gpointer loader, int width, int height)
+GdkPixbuf *ImageLoaderPDF::get_pixbuf()
{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
- ld->requested_width = width;
- ld->requested_height = height;
+ return pixbuf;
}
-static GdkPixbuf* image_loader_pdf_get_pixbuf(gpointer loader)
-{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
- return ld->pixbuf;
-}
-
-static gchar* image_loader_pdf_get_format_name(gpointer)
+gchar *ImageLoaderPDF::get_format_name()
{
return g_strdup("pdf");
}
-static gchar** image_loader_pdf_get_format_mime_types(gpointer)
+gchar **ImageLoaderPDF::get_format_mime_types()
{
static const gchar *mime[] = {"application/pdf", nullptr};
return g_strdupv(const_cast<gchar **>(mime));
}
-static void image_loader_pdf_set_page_num(gpointer loader, gint page_num)
+void ImageLoaderPDF::set_page_num(gint page_num)
{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
-
- ld->page_num = page_num;
+ this->page_num = page_num;
}
-static gint image_loader_pdf_get_page_total(gpointer loader)
+gint ImageLoaderPDF::get_page_total()
{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
-
- return ld->page_total;
+ return page_total;
}
-static gboolean image_loader_pdf_close(gpointer, GError **)
+ImageLoaderPDF::~ImageLoaderPDF()
{
- return TRUE;
+ if (pixbuf) g_object_unref(pixbuf);
}
-static void image_loader_pdf_abort(gpointer loader)
-{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
- ld->abort = TRUE;
-}
+} // namespace
-static void image_loader_pdf_free(gpointer loader)
+std::unique_ptr<ImageLoaderBackend> get_image_loader_backend_pdf()
{
- auto ld = static_cast<ImageLoaderPDF *>(loader);
- if (ld->pixbuf) g_object_unref(ld->pixbuf);
- g_free(ld);
+ return std::make_unique<ImageLoaderPDF>();
}
-void image_loader_backend_set_pdf(ImageLoaderBackend *funcs)
-{
- funcs->loader_new = image_loader_pdf_new;
- funcs->set_size = image_loader_pdf_set_size;
- funcs->load = image_loader_pdf_load;
- funcs->write = nullptr;
- funcs->get_pixbuf = image_loader_pdf_get_pixbuf;
- funcs->close = image_loader_pdf_close;
- funcs->abort = image_loader_pdf_abort;
- funcs->free = image_loader_pdf_free;
- funcs->get_format_name = image_loader_pdf_get_format_name;
- funcs->get_format_mime_types = image_loader_pdf_get_format_mime_types;
- funcs->set_page_num = image_loader_pdf_set_page_num;
- funcs->get_page_total = image_loader_pdf_get_page_total;
-}
-
-#endif
/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff