ErrorItem graphics

Author: dcwhite

src/Interface/Application/NetworkEditor.cc

@@ -59,7 +59,7 @@ using namespace SCIRun::Dataflow::Networks;
 using namespace SCIRun::Dataflow::Engine;
 
 NetworkEditor::NetworkEditor(boost::shared_ptr<CurrentModuleSelection> moduleSelectionGetter,
-  boost::shared_ptr<DefaultNotePositionGetter> dnpg, boost::shared_ptr<SCIRun::Gui::DialogErrorControl> dialogErrorControl, 
+  boost::shared_ptr<DefaultNotePositionGetter> dnpg, boost::shared_ptr<SCIRun::Gui::DialogErrorControl> dialogErrorControl,
   TagColorFunc tagColor,
   QWidget* parent)
   : QGraphicsView(parent),
@@ -1208,10 +1208,36 @@ void NetworkEditor::highlightTaggedItem(QGraphicsItem* item, int tagValue)
   }
 }
 
-void NetworkEditor::displayError(const QString& msg) const
+ErrorItem::ErrorItem(const QString& text, QGraphicsItem* parent) : QGraphicsTextItem(text, parent)
 {
-  qDebug() << "displaying" << msg;
-  auto errorItem = scene()->addText(msg);
+  setDefaultTextColor(Qt::red);
+}
+
+void ErrorItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
+{
+  if (event->buttons() & Qt::LeftButton)
+  {
+    qDebug() << "TODO: go to errored module";
+  }
+  else if (event->buttons() & Qt::RightButton)
+  {
+    scene()->removeItem(this);
+  }
+}
+
+void NetworkEditor::displayError(const QString& msg)
+{
+  auto errorItem = new ErrorItem(msg);
+  scene()->addItem(errorItem);
+  qDebug() << "TODO: get visible view, display relative to lower left corner.";
+  qDebug() << "TODO: set timer to fade out after X seconds";
+
+  auto rect = sceneRect();
+  qDebug() << "scene rect:" << rect;
+  errorItem->setPos(-100, -100);
+  //ensureVisible(errorItem);
+
+  //rotate(90);
 }
 
 NetworkEditor::~NetworkEditor()

src/Interface/Application/NetworkEditor.h

@@ -30,6 +30,7 @@
 #define INTERFACE_APPLICATION_NETWORKEDITOR_H
 
 #include <QGraphicsView>
+#include <QGraphicsTextItem>
 #ifndef Q_MOC_RUN
 #include <boost/shared_ptr.hpp>
 #include <map>
@@ -74,7 +75,16 @@ namespace Gui {
   {
   public:
     virtual ~ModuleErrorDisplayer() {}
-    virtual void displayError(const QString& msg) const = 0;
+    virtual void displayError(const QString& msg) = 0;
+  };
+
+  class ErrorItem : public QGraphicsTextItem
+  {
+    Q_OBJECT
+  public:
+    explicit ErrorItem(const QString& text, QGraphicsItem* parent = 0);
+  protected:
+    virtual void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
   };
 
   class ModuleEventProxy : public QObject
@@ -122,7 +132,7 @@ namespace Gui {
 
   public:
     explicit NetworkEditor(boost::shared_ptr<CurrentModuleSelection> moduleSelectionGetter, boost::shared_ptr<DefaultNotePositionGetter> dnpg,
-				boost::shared_ptr<DialogErrorControl> dialogErrorControl, 
+				boost::shared_ptr<DialogErrorControl> dialogErrorControl,
         TagColorFunc tagColor = defaultTagColor,
         QWidget* parent = 0);
     ~NetworkEditor();
@@ -156,7 +166,7 @@ namespace Gui {
     void enableInputWidgets();
 
     //TODO: this class is getting too big and messy, schedule refactoring
-    
+
     void setBackground(const QBrush& brush);
     QBrush background() const;
 
@@ -174,7 +184,7 @@ namespace Gui {
     void tagLayer(bool active, int tag);
     bool tagLayerActive() const { return tagLayerActive_; }
 
-    virtual void displayError(const QString& msg) const override;
+    virtual void displayError(const QString& msg) override;
 
   protected:
     virtual void dropEvent(QDropEvent* event) override;