Module add animation experiment

Author: dcwhite

src/Interface/Application/ModuleProxyWidget.cc

@@ -111,6 +111,8 @@ namespace SCIRun
   }
 }
 
+const int fadeInSeconds = 1;
+
 ModuleProxyWidget::ModuleProxyWidget(ModuleWidget* module, QGraphicsItem* parent/* = 0*/)
   : QGraphicsProxyWidget(parent),
   NoteDisplayHelper(boost::make_shared<ModuleWidgetNoteDisplayStrategy>()),
@@ -133,12 +135,25 @@ ModuleProxyWidget::ModuleProxyWidget(ModuleWidget* module, QGraphicsItem* parent
   stackDepth_ = 0;
 
   originalSize_ = size();
+
+  {
+    timeLine_ = new QTimeLine(fadeInSeconds * 1000, this);
+    connect(timeLine_, SIGNAL(valueChanged(qreal)), this, SLOT(animate(qreal)));
+    //connect(timeLine_, SIGNAL(finished()), this, SLOT(deleteLater()));
+    timeLine_->start();
+  }
 }
 
 ModuleProxyWidget::~ModuleProxyWidget()
 {
 }
 
+void ModuleProxyWidget::animate(qreal val)
+{
+  setOpacity(val);
+  setScale(val);
+}
+
 void ModuleProxyWidget::adjustHeight(int delta)
 {
   auto p = pos();

src/Interface/Application/ModuleProxyWidget.h

@@ -33,6 +33,8 @@
 #include <Interface/Application/Note.h>
 #include <QGraphicsProxyWidget>
 
+class QTimeLine;
+
 namespace SCIRun
 {
   namespace Gui
@@ -74,6 +76,7 @@ namespace SCIRun
       void updateNote(const Note& note);
       void ensureThisVisible();
       void disableModuleGUI(bool disabled);
+      void animate(qreal val);
     private:
       void ensureItemVisible(QGraphicsItem* item);
       bool isSubwidget(QWidget* alienWidget) const;
@@ -87,6 +90,7 @@ namespace SCIRun
       bool doHighlight_;
       int stackDepth_;
       QSizeF originalSize_;
+      QTimeLine* timeLine_;
     };
 
     // arbitrary values