Sankore-861 Only standard created annotations change their color

src/board/UBBoardController.cpp

@@ -1543,6 +1543,21 @@ void UBBoardController::changeBackground(bool isDark, bool isCrossed)
 
         mActiveScene->setBackground(isDark, isCrossed);
 
+        foreach (QGraphicsItem *item, mActiveScene->items()) {
+            if (item->type() == UBGraphicsStrokesGroup::Type) {
+                UBGraphicsStrokesGroup *curGroup = static_cast<UBGraphicsStrokesGroup*>(item);
+                QColor compareColor =  curGroup->color(currentIsDark ? UBGraphicsStrokesGroup::colorOnDarkBackground
+                                                                     : UBGraphicsStrokesGroup::colorOnLightBackground);
+
+                if (curGroup->color() == compareColor) {
+                    QColor newColor = curGroup->color(!currentIsDark ? UBGraphicsStrokesGroup::colorOnDarkBackground
+                                                                     : UBGraphicsStrokesGroup::colorOnLightBackground);
+                    curGroup->setColor(newColor);
+                }
+
+            }
+        }
+
         updateBackgroundState();
 
         emit backgroundChanged();

src/domain/UBGraphicsStrokesGroup.cpp

@@ -32,6 +32,54 @@ void UBGraphicsStrokesGroup::setUuid(const QUuid &pUuid)
     UBItem::setUuid(pUuid);
     setData(UBGraphicsItemData::ItemUuid, QVariant(pUuid)); //store item uuid inside the QGraphicsItem to fast operations with Items on the scene
 }
+void UBGraphicsStrokesGroup::setColor(const QColor &color, colorType pColorType)
+{
+    //TODO Implement common mechanism of managing groups, drop UBGraphicsStroke if it's obsolete
+    //Using casting for the moment
+    foreach (QGraphicsItem *item, childItems()) {
+        if (item->type() == UBGraphicsPolygonItem::Type) {
+            UBGraphicsPolygonItem *curPolygon = static_cast<UBGraphicsPolygonItem *>(item);
+
+            switch (pColorType) {
+            case currentColor :
+                curPolygon->setColor(color);
+                break;
+            case colorOnLightBackground :
+                 curPolygon->setColorOnLightBackground(color);
+                break;
+            case colorOnDarkBackground :
+                 curPolygon->setColorOnDarkBackground(color);
+                break;
+            }
+        }
+    }
+}
+
+QColor UBGraphicsStrokesGroup::color(colorType pColorType) const
+{
+    QColor result;
+
+    foreach (QGraphicsItem *item, childItems()) {
+        if (item->type() == UBGraphicsPolygonItem::Type) {
+            UBGraphicsPolygonItem *curPolygon = static_cast<UBGraphicsPolygonItem *>(item);
+
+            switch (pColorType) {
+            case currentColor :
+                result = curPolygon->color();
+                break;
+            case colorOnLightBackground :
+                result = curPolygon->colorOnLightBackground();
+                break;
+            case colorOnDarkBackground :
+                result = curPolygon->colorOnDarkBackground();
+                break;
+            }
+
+        }
+    }
+
+    return result;
+}
 
 void UBGraphicsStrokesGroup::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {

src/domain/UBGraphicsStrokesGroup.h

@@ -11,6 +11,12 @@ class UBGraphicsStrokesGroup : public QObject, public QGraphicsItemGroup, public
 {
     Q_OBJECT
 public:
+    enum colorType {
+        currentColor = 0
+        , colorOnLightBackground
+        , colorOnDarkBackground
+    };
+
     UBGraphicsStrokesGroup(QGraphicsItem* parent = 0);
     ~UBGraphicsStrokesGroup();
     virtual UBItem* deepCopy() const;
@@ -23,6 +29,8 @@ public:
         return Type;
     }
     virtual void setUuid(const QUuid &pUuid);
+    void setColor(const QColor &color, colorType pColorType = currentColor);
+    QColor color(colorType pColorType = currentColor) const;
 
 protected: