From c36fb36afba47f52c1f81f1df61eb31838134cd2 Mon Sep 17 00:00:00 2001
From: Ľubomír Remák
Date: Thu, 6 Sep 2018 19:38:16 +0200
Subject: MUTATIONOFJB: Add support for 'look' action on inventory items.

---
 engines/mutationofjb/widgets/inventorywidget.cpp | 64 +++++++++++++++++++++---
 1 file changed, 57 insertions(+), 7 deletions(-)

(limited to 'engines/mutationofjb/widgets/inventorywidget.cpp')

diff --git a/engines/mutationofjb/widgets/inventorywidget.cpp b/engines/mutationofjb/widgets/inventorywidget.cpp
index 46bfab9c34..851f8af9d0 100644
--- a/engines/mutationofjb/widgets/inventorywidget.cpp
+++ b/engines/mutationofjb/widgets/inventorywidget.cpp
@@ -23,11 +23,14 @@
 #include "mutationofjb/widgets/inventorywidget.h"
 #include "mutationofjb/game.h"
 #include "mutationofjb/gamedata.h"
-#include "mutationofjb/gui.h"
+#include "mutationofjb/gamescreen.h"
 #include "mutationofjb/inventory.h"
+
 #include "common/str.h"
 #include "common/rect.h"
 #include "common/util.h"
+#include "common/events.h"
+
 #include "graphics/managed_surface.h"
 
 namespace MutationOfJB {
@@ -41,18 +44,18 @@ enum {
 	INVENTORY_ITEMS_LINES = 5
 };
 
-InventoryWidget::InventoryWidget(Gui &gui, Gui::InventoryMap &inventoryMap, const Common::Array<Graphics::Surface> &inventorySurfaces) :
+InventoryWidget::InventoryWidget(GuiScreen &gui, const Common::Array<Graphics::Surface> &inventorySurfaces) :
 	Widget(gui, Common::Rect(INVENTORY_START_X, INVENTORY_START_Y, INVENTORY_START_X + Inventory::VISIBLE_ITEMS * INVENTORY_ITEM_WIDTH, INVENTORY_START_Y + INVENTORY_ITEM_HEIGHT)),
-	_inventoryMap(inventoryMap),
-	_surfaces(inventorySurfaces) {}
+	_surfaces(inventorySurfaces),
+	_callback(nullptr),
+	_hoveredItemPos(-1) {}
 
 void InventoryWidget::drawInventoryItem(Graphics::ManagedSurface &surface, const Common::String &item, int pos) {
-	Gui::InventoryMap::iterator it = _inventoryMap.find(item);
-	if (it == _inventoryMap.end()) {
+	const int index = _gui.getGame().getAssets().getInventoryItemDefList().findItemIndex(item);
+	if (index == -1) {
 		return;
 	}
 
-	const int index = it->_value;
 	const int surfaceNo = index / (INVENTORY_ITEMS_LINES * INVENTORY_ITEMS_PER_LINE);
 	const int indexInSurface = index % (INVENTORY_ITEMS_LINES * INVENTORY_ITEMS_PER_LINE);
 	const int itemX = indexInSurface % INVENTORY_ITEMS_PER_LINE;
@@ -72,4 +75,51 @@ void InventoryWidget::draw(Graphics::ManagedSurface &surface) {
 	}
 }
 
+void InventoryWidget::handleEvent(const Common::Event &event) {
+	if (!_callback)
+		return;
+
+	Inventory &inventory = _gui.getGame().getGameData().getInventory();
+	const int numItems = inventory.getItems().size();
+
+	switch (event.type) {
+	case Common::EVENT_LBUTTONDOWN: {
+		const int16 x = event.mouse.x;
+		const int16 y = event.mouse.y;
+		if (_area.contains(x, y)) {
+			int itemPos = (x - INVENTORY_START_X) / INVENTORY_ITEM_WIDTH;
+			if (itemPos < numItems) {
+				_callback->onInventoryItemClicked(this, itemPos);
+			}
+		}
+		break;
+	}
+	case Common::EVENT_MOUSEMOVE: {
+		const int16 x = event.mouse.x;
+		const int16 y = event.mouse.y;
+
+		int newHoveredItemPos = -1;
+		if (_area.contains(x, y)) {
+			int itemPos = (x - INVENTORY_START_X) / INVENTORY_ITEM_WIDTH;
+			if (itemPos < numItems) {
+				newHoveredItemPos = itemPos;
+
+				if (_hoveredItemPos != newHoveredItemPos) {
+					_callback->onInventoryItemHovered(this, itemPos);
+				}
+			}
+		}
+
+		if (newHoveredItemPos == -1 && _hoveredItemPos != -1) {
+			_callback->onInventoryItemHovered(this, -1);
+		}
+
+		_hoveredItemPos = newHoveredItemPos;
+		break;
+	}
+	default:
+		break;
+	}
+}
+
 }
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