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index e13ffbb1371c3b888f1387369128bb7bc4042e76..4620375f928f584dfc320eb09f64cd41b32b4fdc 100644 (file)
namespace Extension {
namespace Implementation {
+
+
+/**
+ * Utility class used for loading and launching script extensions
+ */
class Script : public Implementation {
-private:
- gchar * command; /**< The command that has been dirived from
- the configuration file with appropriate
- directories */
- gchar * helper_extension;
- /**< This is the extension that will be used
- as the helper to read in or write out the
- data */
- /** This function actually does the work, everything else is preparing
- for this function. It is the core here */
- int execute (gchar const *command,
- gchar const *filein,
- gchar const *fileout);
- /** Just a quick function to find and resolve relative paths for
- the incoming scripts */
- gchar * solve_reldir (Inkscape::XML::Node *reprin);
- bool check_existance (gchar const *command);
- void copy_doc (Inkscape::XML::Node * olddoc, Inkscape::XML::Node * newdoc);
- void checkStderr (gchar * filename, Gtk::MessageType type, gchar * message);
public:
- Script (void);
- virtual bool load (Inkscape::Extension::Extension *module);
- virtual void unload (Inkscape::Extension::Extension *module);
- virtual bool check (Inkscape::Extension::Extension *module);
- virtual Gtk::Widget * prefs_input (Inkscape::Extension::Input *module,
- gchar const *filename);
- virtual SPDocument * open (Inkscape::Extension::Input *module,
- gchar const *filename);
- virtual Gtk::Widget * prefs_output (Inkscape::Extension::Output *module);
- virtual void save (Inkscape::Extension::Output *module,
- SPDocument *doc,
- gchar const *filename);
- virtual Gtk::Widget *
- prefs_effect (Inkscape::Extension::Effect *module,
- Inkscape::UI::View::View * view);
- virtual void effect (Inkscape::Extension::Effect *module,
- Inkscape::UI::View::View *doc);
-
-};
-
-} /* Inkscape */
-} /* Extension */
-} /* Implementation */
+
+ /**
+ *
+ */
+ Script(void);
+
+ /**
+ *
+ */
+ virtual ~Script();
+
+
+ /**
+ *
+ */
+ virtual bool load(Inkscape::Extension::Extension *module);
+
+ /**
+ *
+ */
+ virtual void unload(Inkscape::Extension::Extension *module);
+
+ /**
+ *
+ */
+ virtual bool check(Inkscape::Extension::Extension *module);
+
+ ImplementationDocumentCache * newDocCache (Inkscape::Extension::Extension * ext, Inkscape::UI::View::View * view);
+
+ /**
+ *
+ */
+ virtual Gtk::Widget *prefs_input(Inkscape::Extension::Input *module,
+ gchar const *filename);
+
+ /**
+ *
+ */
+ virtual SPDocument *open(Inkscape::Extension::Input *module,
+ gchar const *filename);
+
+ /**
+ *
+ */
+ virtual Gtk::Widget *prefs_output(Inkscape::Extension::Output *module);
+
+ /**
+ *
+ */
+ virtual void save(Inkscape::Extension::Output *module,
+ SPDocument *doc,
+ gchar const *filename);
+
+ /**
+ *
+ */
+ virtual void effect(Inkscape::Extension::Effect *module,
+ Inkscape::UI::View::View *doc,
+ ImplementationDocumentCache * docCache);
+
+ virtual bool cancelProcessing (void);
+
+private:
+ bool _canceled;
+ Glib::Pid _pid;
+ Glib::RefPtr<Glib::MainLoop> _main_loop;
+
+ /**
+ * The command that has been dirived from
+ * the configuration file with appropriate directories
+ */
+ std::list<std::string> command;
+
+ /**
+ * This is the extension that will be used
+ * as the helper to read in or write out the
+ * data
+ */
+ Glib::ustring helper_extension;
+
+ /**
+ * Just a quick function to find and resolve relative paths for
+ * the incoming scripts
+ */
+ Glib::ustring solve_reldir (Inkscape::XML::Node *reprin);
+
+ /**
+ *
+ */
+ bool check_existance (const Glib::ustring &command);
+
+ /**
+ *
+ */
+ void copy_doc (Inkscape::XML::Node * olddoc,
+ Inkscape::XML::Node * newdoc);
+
+ /**
+ *
+ */
+ void checkStderr (const Glib::ustring &filename,
+ Gtk::MessageType type,
+ const Glib::ustring &message);
+
+
+ class file_listener {
+ Glib::ustring _string;
+ sigc::connection _conn;
+ Glib::RefPtr<Glib::IOChannel> _channel;
+ Glib::RefPtr<Glib::MainLoop> _main_loop;
+ bool _dead;
+
+ public:
+ file_listener () : _dead(false) { };
+ virtual ~file_listener () {
+ _conn.disconnect();
+ };
+
+ bool isDead () { return _dead; }
+
+ void init (int fd, Glib::RefPtr<Glib::MainLoop> main) {
+ _channel = Glib::IOChannel::create_from_fd(fd);
+ _channel->set_encoding();
+ _conn = Glib::signal_io().connect(sigc::mem_fun(*this, &file_listener::read), _channel, Glib::IO_IN | Glib::IO_HUP | Glib::IO_ERR);
+ _main_loop = main;
+
+ return;
+ };
+
+ bool read (Glib::IOCondition condition) {
+ if (condition != Glib::IO_IN) {
+ _main_loop->quit();
+ return false;
+ }
+
+ Glib::IOStatus status;
+ Glib::ustring out;
+ status = _channel->read_line(out);
+ _string += out;
+
+ if (status != Glib::IO_STATUS_NORMAL) {
+ _main_loop->quit();
+ _dead = true;
+ return false;
+ }
+
+ return true;
+ };
+
+ // Note, doing a copy here, on purpose
+ Glib::ustring string (void) { return _string; };
+
+ void toFile (const Glib::ustring &name) {
+ Glib::RefPtr<Glib::IOChannel> stdout_file = Glib::IOChannel::create_from_file(name, "w");
+ stdout_file->set_encoding();
+ stdout_file->write(_string);
+ return;
+ };
+ };
+
+ int execute (const std::list<std::string> &in_command,
+ const std::list<std::string> &in_params,
+ const Glib::ustring &filein,
+ file_listener &fileout);
+
+ void pump_events (void);
+
+ /** \brief A definition of an interpreter, which can be specified
+ in the INX file, but we need to know what to call */
+ struct interpreter_t {
+ gchar const *identity; /**< The ID that is in the INX file */
+ gchar const *prefstring; /**< The preferences key that can override the default */
+ gchar const *defaultval; /**< The default value if there are no preferences */
+ };
+ static interpreter_t const interpreterTab[];
+
+ Glib::ustring resolveInterpreterExecutable(const Glib::ustring &interpNameArg);
+
+}; // class Script
+
+
+
+
+
+} // namespace Implementation
+} // namespace Extension
+} // namespace Inkscape
+
#endif /* __INKSCAPE_EXTENSION_IMPEMENTATION_SCRIPT_H__ */
/*