From 1b61e1d16a8d0675260391393395b3aab3b0a75f Mon Sep 17 00:00:00 2001
From: Till Theato <root@ttill.de>
Date: Sun, 2 Jan 2011 20:05:38 +0000
Subject: [PATCH] Bezier Spline: requires version 0.2 of frei0r.curves

svn path=/trunk/kdenlive/; revision=5243
---
 effects/frei0r_bezier_curves.xml |  2 +-
 src/initeffects.cpp              | 20 ++++++++++++++------
 src/initeffects.h                |  6 ++++--
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/effects/frei0r_bezier_curves.xml b/effects/frei0r_bezier_curves.xml
index 8a4bfb51..dff83968 100644
--- a/effects/frei0r_bezier_curves.xml
+++ b/effects/frei0r_bezier_curves.xml
@@ -1,5 +1,5 @@
 <!DOCTYPE kpartgui>
-<effect tag="frei0r.curves" id="frei0r.bezier_curves">
+<effect tag="frei0r.curves" id="frei0r.bezier_curves" version="0.2">
         <name>Bézier Curves</name>
         <description>Color curves adjustment</description>
         <author>Till Theato, Maksim Golovkin</author>
diff --git a/src/initeffects.cpp b/src/initeffects.cpp
index 6ce55d62..e0b93531 100644
--- a/src/initeffects.cpp
+++ b/src/initeffects.cpp
@@ -208,7 +208,7 @@ Mlt::Repository *initEffects::parseEffectFiles()
             parseEffectFile(&MainWindow::customEffects,
                             &MainWindow::audioEffects,
                             &MainWindow::videoEffects,
-                            itemName, filtersList, producersList);
+                            itemName, filtersList, producersList, repository);
         }
     }
 
@@ -317,7 +317,7 @@ void initEffects::parseCustomEffectsFile()
 }
 
 // static
-void initEffects::parseEffectFile(EffectsList *customEffectList, EffectsList *audioEffectList, EffectsList *videoEffectList, QString name, QStringList filtersList, QStringList producersList)
+void initEffects::parseEffectFile(EffectsList *customEffectList, EffectsList *audioEffectList, EffectsList *videoEffectList, QString name, QStringList filtersList, QStringList producersList, Mlt::Repository *repository)
 {
     QDomDocument doc;
     QFile file(name);
@@ -331,13 +331,21 @@ void initEffects::parseEffectFile(EffectsList *customEffectList, EffectsList *au
         return;
     }
 
-    /*QString groupName;
-    if (doc.elementsByTagName("effectgroup").item(0).toElement().tagName() == "effectgroup")
-        groupName = documentElement.attribute("name", QString());*/
-
     for (int i = 0; !effects.item(i).isNull(); ++i) {
         documentElement = effects.item(i).toElement();
         QString tag = documentElement.attribute("tag", QString());
+
+        if (documentElement.hasAttribute("version")) {
+            // a specific version of the filter is required
+            Mlt::Properties *metadata = repository->metadata(filter_type, tag.toUtf8().data());
+            if (metadata && metadata->is_valid()) {
+                double version = atof(metadata->get("version"));
+                if (documentElement.attribute("version").toDouble() > version)
+                    return;
+            }
+            delete metadata;
+        }
+
         bool ladspaOk = true;
         if (tag == "ladspa") {
             QString library = documentElement.attribute("library", QString());
diff --git a/src/initeffects.h b/src/initeffects.h
index d87c5abc..434d79b7 100644
--- a/src/initeffects.h
+++ b/src/initeffects.h
@@ -95,12 +95,14 @@ public:
      * @param videoEffectList list of video effects
      * @param name file name
      * @param filtersList list of filters in the MLT repository
-     * @param producersList list of producers in the MLT repository */
+     * @param producersList list of producers in the MLT repository
+     * @param repository MLT repository */
     static void parseEffectFile(EffectsList *customEffectList,
                                 EffectsList *audioEffectList,
                                 EffectsList *videoEffectList,
                                 QString name, QStringList filtersList,
-                                QStringList producersList);
+                                QStringList producersList,
+                                Mlt::Repository *repository);
 
     /** @brief Reloads information about custom effects. */
     static void parseCustomEffectsFile();
-- 
2.39.2