r16677@shi: ted | 2007-10-17 19:31:04 -0700

 Creating and adding interfaces for a document based cache that an effect can define.  This removes the effect from 
 having to know if the document has changed, and keep track of that.  This allows them to optimize their performance 
 when doing things like live effects.

(bzr r3977)

1 files changed, 12 insertions, 3 deletions

diff --git a/src/extension/implementation/implementation.cpp b/src/extension/implementation/implementation.cpp
index 3bf9b0b75..acec99041 100644
--- a/src/extension/implementation/implementation.cpp
+++ b/src/extension/implementation/implementation.cpp
@@ -38,8 +38,17 @@ Implementation::unload(Inkscape::Extension::Extension *module) {
     return;
 } /* Implementation::unload */
 
+/** \brief  Create a new document cache object
+    \param  ext  The extension that is referencing us
+	\param  doc  The document to create the cache of
+	\return A new document cache that is valid as long as the document
+	        is not changed.
+
+	This function just returns \c NULL.  Subclasses are likely
+	to reimplement it to do something useful.
+*/
 ImplementationDocumentCache *
-Implementation::newDocCache (SPDocument * doc) {
+Implementation::newDocCache (Inkscape::Extension::Extension * ext, SPDocument * doc) {
 	return NULL;
 }
 
@@ -71,12 +80,12 @@ Implementation::open(Inkscape::Extension::Input *module, gchar const *filename)
 } /* Implementation::open */
 
 Gtk::Widget *
-Implementation::prefs_output(Inkscape::Extension::Output *module, ImplementationDocumentCache * docCache) {
+Implementation::prefs_output(Inkscape::Extension::Output *module) {
     return module->autogui(NULL, NULL);
 } /* Implementation::prefs_output */
 
 void
-Implementation::save(Inkscape::Extension::Output *module, SPDocument *doc, gchar const *filename, ImplementationDocumentCache * docCache) {
+Implementation::save(Inkscape::Extension::Output *module, SPDocument *doc, gchar const *filename) {
     /* throw save_fail */
     return;
 } /* Implementation::save */