Hero backpack can now be scrolled via mouse wheel / swipe

client/widgets/CArtifactsOfHeroBase.cpp

@@ -85,6 +85,9 @@ void CArtifactsOfHeroBase::init(
 	leftBackpackRoll->block(true);
 	rightBackpackRoll->block(true);
 
+	backpackScroller = std::make_shared<BackpackScroller>(this, Rect(380, 30, 278, 382));
+	backpackScroller->setScrollingEnabled(false);
+
 	setRedrawParent(true);
 }
 
@@ -186,6 +189,8 @@ void CArtifactsOfHeroBase::updateBackpackSlots()
 		leftBackpackRoll->block(!scrollingPossible);
 	if(rightBackpackRoll)
 		rightBackpackRoll->block(!scrollingPossible);
+	if (backpackScroller)
+		backpackScroller->setScrollingEnabled(scrollingPossible);
 }
 
 void CArtifactsOfHeroBase::updateSlot(const ArtifactPosition & slot)
@@ -245,3 +250,17 @@ void CArtifactsOfHeroBase::setSlotData(ArtPlacePtr artPlace, const ArtifactPosit
 		artPlace->setArtifact(nullptr);
 	}
 }
+
+BackpackScroller::BackpackScroller(CArtifactsOfHeroBase * owner, const Rect & dimensions)
+	: Scrollable(0, Point(), Orientation::HORIZONTAL)
+	, owner(owner)
+{
+	pos = dimensions + pos.topLeft();
+	setPanningStep(46);
+}
+
+void BackpackScroller::scrollBy(int distance)
+{
+	if (distance != 0)
+		owner->scrollBackpack(distance < 0);
+}

client/widgets/CArtifactsOfHeroBase.h

@@ -10,8 +10,10 @@
 #pragma once
 
 #include "CArtPlace.h"
+#include "Scrollable.h"
 
 class CButton;
+class BackpackScroller;
 
 class CArtifactsOfHeroBase : virtual public CIntObject
 {
@@ -50,6 +52,7 @@ protected:
 	std::vector<ArtPlacePtr> backpack;
 	std::shared_ptr<CButton> leftBackpackRoll;
 	std::shared_ptr<CButton> rightBackpackRoll;
+	std::shared_ptr<BackpackScroller> backpackScroller;
 
 	const std::vector<Point> slotPos =
 	{
@@ -67,3 +70,13 @@ protected:
 	// Assigns an artifacts to an artifact place depending on it's new slot ID
 	virtual void setSlotData(ArtPlacePtr artPlace, const ArtifactPosition & slot);
 };
+
+class BackpackScroller : public Scrollable
+{
+	CArtifactsOfHeroBase * owner;
+
+	void scrollBy(int distance) override;
+
+public:
+	BackpackScroller(CArtifactsOfHeroBase * owner, const Rect & dimensions);
+};