Hello everybody,
I'm trying to familiarize with the development of shotwell plugins using
this guide:
http://redmine.yorba.org/projects/shotwell/wiki/ShotwellArchWritingPlugins
and reading the code of the picasa publishing extension. My intent is to
realize a simple extension that applies a single transformation to the
selected photography (a polaroid-like frame around the picture, using
the linux "convert" command, e.g. :
convert image.jpg -thumbnail 350x350 -gravity center -background black
-bordercolor white +polaroid final image.png
).
The questions below are rather simple, but searching the internet I
wasn't able to find the explanations I needed.
The problems I'm facing right now is:
- how to detect, from the class that extends Pluggable, the currently
selected picture(s)?
- is there a way to lunch my service from a context menu that appears
right-clicking on the picture(s)?
- so far my Service has the following structure:
public class FrameService : Object, Spit.Pluggable {
private const string ICON_FILENAME = "...";
private static Gdk.Pixbuf[] icon_pixbuf_set = null;
public FrameService(GLib.File resource_directory) {
if (icon_pixbuf_set == null)
icon_pixbuf_set = Resources.load_icon_set(
resource_directory.get_child(ICON_FILENAME));
}
public int get_pluggable_interface(int min_host_interface,
int max_host_interface)
{
return Spit.negotiate_interfaces(min_host_interface,
max_host_interface,
Spit.Publishing.CURRENT_INTERFACE);
// WHAT DOES THIS LINE MEAN?!? ^^^^^^^^^^^^^^^^^^^^^^^^^^^
}
public unowned string get_id() {
return "org.yorba.shotwell.transform.framservice";
}
public unowned string get_pluggable_name() {
return ...;
}
public void get_info(ref Spit.PluggableInfo info)
{
...
}
public Spit.Publishing.Publisher.MediaType get_supported_media() {
return (Spit.Publishing.Publisher.MediaType.PHOTO);
}
public void activation(bool enabled) {
if (enabled)
{
print("Service activation");
}
else
{
print("Service deactivation");
}
}
}
// and as usual ...
public Spit.Module? spit_entry_point(...) { ... }
my question is: the FrameService.activation(...) method is called when
the plugin is loaded, i.e. during the startup of the shotwell
application. How can I catch the actual invocation of the plugin in
order to execute the command I'm interested in?
- last but not least: how do I compile my plugin to produce the .so file
? how do I link my plugin to the Spit and Gdk libraries?
Thank you very much,
--
Francesco Spegni
"Ama le nuvole, le macchine, i libri, ma prima di tutto ama l'uomo" -
Nazim Hikmet
http://www.manuefra.eu
skype: francesco.spegni
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