Hi,
I used the code below to render a page of a pdf to a scrolled window in
a gtk application of mine.
After downloading Ubuntu 12.04 I get that there is no more support for
poppler_page_render_to_pixbuf().
I do know that we are supposed to use cairo. But how? How do I replace
the code below with cairo?
these are global variables
static PopplerDocument *doc;
static PopplerPage *page;
GdkPixbuf *pixbuf;
GtkWidget *image;
void open_pdf_file_on_lily_complete()
{
GtkWidget *viewport, *window, *hpane, *entry;
GtkScrolledWindow *scrolledwindow;
GError* err = NULL;
GString *link;
gchar *uri;
window = GTK_WIDGET(gtk_builder_get_object (builder, "window"));
link = make_ly_extension_into_pdf();
uri = g_filename_to_uri(link->str, NULL, NULL);
g_string_free(link, TRUE);
doc = poppler_document_new_from_file(uri, NULL, &err);
total_pages = 0;
width = 0.0;
height = 0.0;
if(doc!= NULL)
{
scrolledwindow = GTK_SCROLLED_WINDOW(gtk_builder_get_object
(builder, "pdfscrollview"));
hpane = GTK_WIDGET(gtk_builder_get_object(builder,
"ly_pdf_hpane"));
total_pages = poppler_document_get_n_pages(doc);
if(page_num > total_pages) page_num = 0;
page = poppler_document_get_page(doc, page_num);
poppler_page_get_size(page, &width, &height);
pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, width,
height);
poppler_page_render_to_pixbuf(page, 0, 0, width, height, 1, 0,
pixbuf);
image = gtk_image_new_from_pixbuf(pixbuf);
viewport = gtk_bin_get_child(GTK_BIN(scrolledwindow));
if(viewport )
gtk_container_remove(GTK_CONTAINER(scrolledwindow),
viewport);
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW
(scrolledwindow), image);
viewport = gtk_bin_get_child(GTK_BIN(scrolledwindow));
gtk_widget_add_events(viewport, GDK_POINTER_MOTION_MASK |
GDK_BUTTON_PRESS_MASK);
g_signal_connect(G_OBJECT(viewport), "motion_notify_event",
G_CALLBACK(motion_notify), image);
g_signal_connect(G_OBJECT(viewport), "button-press-event",
G_CALLBACK(mouse_down), image);
gtk_paned_set_position(GTK_PANED(hpane), 500);
window = GTK_WIDGET(gtk_builder_get_object (builder, "window"));
entry = GTK_WIDGET(gtk_builder_get_object (builder,
"Entry"));
gchar *my_string = g_strdup_printf("%i", page_num + 1);
gtk_entry_set_text(GTK_ENTRY(entry), my_string);
gtk_widget_show_all (window);
}
}
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