From f6afc93100a3d635181e017cd9f49844580fd0e7 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Mardelle <jb@kdenlive.org>
Date: Sat, 24 Apr 2010 22:13:06 +0000
Subject: [PATCH] Fix fades when copy/paste a clip

svn path=/trunk/kdenlive/; revision=4401
---
 src/clipitem.cpp | 61 +++++++++++++++++++++++++++++++++++++++++++++++-
 src/clipitem.h   |  1 +
 2 files changed, 61 insertions(+), 1 deletion(-)

diff --git a/src/clipitem.cpp b/src/clipitem.cpp
index 61265675..0492669d 100644
--- a/src/clipitem.cpp
+++ b/src/clipitem.cpp
@@ -138,6 +138,7 @@ ClipItem *ClipItem::clone(ItemInfo info) const
     duplicate->setEffectList(m_effectList);
     duplicate->setVideoOnly(m_videoOnly);
     duplicate->setAudioOnly(m_audioOnly);
+    duplicate->setFades(fadeIn(), fadeOut());
     //duplicate->setSpeed(m_speed);
     return duplicate;
 }
@@ -146,7 +147,59 @@ void ClipItem::setEffectList(const EffectsList effectList)
 {
     m_effectList.clone(effectList);
     m_effectNames = m_effectList.effectNames().join(" / ");
-    if (!m_effectList.isEmpty()) setSelectedEffect(0);
+    if (!m_effectList.isEmpty()) {
+        for (int i = 0; i < m_effectList.count(); i++) {
+            QString effectId = m_effectList.item(i).attribute("id");
+            // check if it is a fade effect
+            QDomNodeList params = m_effectList.item(i).elementsByTagName("parameter");
+            int fade = 0;
+            for (int j = 0; j < params.count(); j++) {
+                QDomElement e = params.item(j).toElement();
+                if (!e.isNull()) {
+                    if (effectId == "fadein") {
+                        if (m_effectList.hasEffect(QString(), "fade_from_black") == -1) {
+                            if (e.attribute("name") == "out") fade += e.attribute("value").toInt();
+                            else if (e.attribute("name") == "in") fade -= e.attribute("value").toInt();
+                        } else {
+                            QDomElement fadein = m_effectList.getEffectByTag(QString(), "fade_from_black");
+                            if (fadein.attribute("name") == "out") fade += fadein.attribute("value").toInt();
+                            else if (fadein.attribute("name") == "in") fade -= fadein.attribute("value").toInt();
+                        }
+                    } else if (effectId == "fade_from_black") {
+                        if (m_effectList.hasEffect(QString(), "fadein") == -1) {
+                            if (e.attribute("name") == "out") fade += e.attribute("value").toInt();
+                            else if (e.attribute("name") == "in") fade -= e.attribute("value").toInt();
+                        } else {
+                            QDomElement fadein = m_effectList.getEffectByTag(QString(), "fadein");
+                            if (fadein.attribute("name") == "out") fade += fadein.attribute("value").toInt();
+                            else if (fadein.attribute("name") == "in") fade -= fadein.attribute("value").toInt();
+                        }
+                    } else if (effectId == "fadeout") {
+                        if (m_effectList.hasEffect(QString(), "fade_to_black") == -1) {
+                            if (e.attribute("name") == "out") fade -= e.attribute("value").toInt();
+                            else if (e.attribute("name") == "in") fade += e.attribute("value").toInt();
+                        } else {
+                            QDomElement fadeout = m_effectList.getEffectByTag(QString(), "fade_to_black");
+                            if (fadeout.attribute("name") == "out") fade -= fadeout.attribute("value").toInt();
+                            else if (fadeout.attribute("name") == "in") fade += fadeout.attribute("value").toInt();
+                        }
+                    } else if (effectId == "fade_to_black") {
+                        if (m_effectList.hasEffect(QString(), "fadeout") == -1) {
+                            if (e.attribute("name") == "out") fade -= e.attribute("value").toInt();
+                            else if (e.attribute("name") == "in") fade += e.attribute("value").toInt();
+                        } else {
+                            QDomElement fadeout = m_effectList.getEffectByTag(QString(), "fadeout");
+                            if (fadeout.attribute("name") == "out") fade -= fadeout.attribute("value").toInt();
+                            else if (fadeout.attribute("name") == "in") fade += fadeout.attribute("value").toInt();
+                        }
+                    }
+                }
+            }
+            if (fade > 0) m_startFade = fade;
+            else if (fade < 0) m_endFade = -fade;
+        }
+        setSelectedEffect(0);
+    }
 }
 
 const EffectsList ClipItem::effectList() const
@@ -1051,6 +1104,12 @@ void ClipItem::setFadeOut(int pos)
 
 }
 
+void ClipItem::setFades(int in, int out)
+{
+    m_startFade = in;
+    m_endFade = out;
+}
+
 /*
 //virtual
 void ClipItem::hoverEnterEvent(QGraphicsSceneHoverEvent *e)
diff --git a/src/clipitem.h b/src/clipitem.h
index e764dd64..8b1c3f06 100644
--- a/src/clipitem.h
+++ b/src/clipitem.h
@@ -60,6 +60,7 @@ public:
     const EffectsList effectList() const;
     void setFadeOut(int pos);
     void setFadeIn(int pos);
+    void setFades(int in, int out);
     /** Give a string list of the clip's effect names */
     QStringList effectNames();
     /** Add an effect to the clip and return the parameters that will be passed to Mlt */
-- 
2.39.2