- QDomNodeList params = effect.elementsByTagName("parameter");
- if (effect.attribute("disabled") != "1")
- for (int i = 0; i < params.count(); i++) {
- QDomElement e = params.item(i).toElement();
- if (!e.isNull() && e.attribute("type") == "keyframe") {
- m_keyframes.clear();
- double max = e.attribute("max").toDouble();
- double min = e.attribute("min").toDouble();
- m_keyframeFactor = 100.0 / (max - min);
- m_keyframeDefault = e.attribute("default").toDouble();
- // parse keyframes
- const QStringList keyframes = e.attribute("keyframes").split(';', QString::SkipEmptyParts);
- foreach(const QString &str, keyframes) {
- int pos = str.section(':', 0, 0).toInt();
- double val = str.section(':', 1, 1).toDouble();
- m_keyframes[pos] = val;
+ if (effect.isNull() == false) {
+ QDomNodeList params = effect.elementsByTagName("parameter");
+ if (effect.attribute("disabled") != "1")
+ for (int i = 0; i < params.count(); i++) {
+ QDomElement e = params.item(i).toElement();
+ if (!e.isNull() && e.attribute("type") == "keyframe") {
+ m_keyframes.clear();
+ double max = e.attribute("max").toDouble();
+ double min = e.attribute("min").toDouble();
+ m_keyframeFactor = 100.0 / (max - min);
+ m_keyframeDefault = e.attribute("default").toDouble();
+ // parse keyframes
+ const QStringList keyframes = e.attribute("keyframes").split(';', QString::SkipEmptyParts);
+ foreach(const QString &str, keyframes) {
+ int pos = str.section(':', 0, 0).toInt();
+ double val = str.section(':', 1, 1).toDouble();
+ m_keyframes[pos] = val;
+ }
+ update();
+ return;