add 'taking' and 'placing' xml properties to slot and slots-grid

src/graphics/ui/elements/InventoryView.cpp

@@ -209,7 +209,7 @@ bool SlotView::isHighlighted() const {
 }
 
 void SlotView::performLeftClick(ItemStack& stack, ItemStack& grabbed) {
-    if (Events::pressed(keycode::LEFT_SHIFT)) {
+    if (layout.taking && Events::pressed(keycode::LEFT_SHIFT)) {
         if (layout.shareFunc) {
             layout.shareFunc(layout.index, stack);
         }
@@ -218,7 +218,7 @@ void SlotView::performLeftClick(ItemStack& stack, ItemStack& grabbed) {
         }
         return;
     }
-    if (!layout.itemSource && stack.accepts(grabbed)) {
+    if (!layout.itemSource && stack.accepts(grabbed) && layout.placing) {
         stack.move(grabbed, content->getIndices());
     } else {
         if (layout.itemSource) {
@@ -227,7 +227,11 @@ void SlotView::performLeftClick(ItemStack& stack, ItemStack& grabbed) {
             } else {
                 grabbed.clear();
             }
-        } else {
+        } else if (grabbed.isEmpty()) {
+            if (layout.taking) {
+                std::swap(grabbed, stack);
+            }
+        } else if (layout.taking && layout.placing) {
             std::swap(grabbed, stack);
         }
     }
@@ -244,7 +248,7 @@ void SlotView::performRightClick(ItemStack& stack, ItemStack& grabbed) {
     if (layout.itemSource)
         return;
     if (grabbed.isEmpty()) {
-        if (!stack.isEmpty()) {
+        if (!stack.isEmpty() && layout.taking) {
             grabbed.set(stack);
             int halfremain = stack.getCount() / 2;
             grabbed.setCount(stack.getCount() - halfremain);
@@ -253,6 +257,9 @@ void SlotView::performRightClick(ItemStack& stack, ItemStack& grabbed) {
         return;
     }
     auto& stackDef = content->getIndices()->items.require(stack.getItemId());
+    if (!layout.placing) {
+        return;
+    }
     if (stack.isEmpty()) {
         stack.set(grabbed);
         stack.setCount(1);

src/graphics/ui/elements/InventoryView.hpp

@@ -34,6 +34,9 @@ namespace gui {
         slotcallback rightClick;
         int padding = 0;
 
+        bool taking = true;
+        bool placing = true;
+
         SlotLayout(
             int index,
             glm::vec2 position, 

src/graphics/ui/gui_xml.cpp

@@ -483,6 +483,8 @@ static slotcallback readSlotFunc(InventoryView* view, UiXmlReader& reader, xml::
 static void readSlot(InventoryView* view, UiXmlReader& reader, xml::xmlelement element) {
     int index = element->attr("index", "0").asInt();
     bool itemSource = element->attr("item-source", "false").asBool();
+    bool taking = element->attr("taking", "true").asBool();
+    bool placing = element->attr("placing", "true").asBool();
     SlotLayout layout(index, glm::vec2(), true, itemSource, nullptr, nullptr, nullptr);
     if (element->has("pos")) {
         layout.position = element->attr("pos").asVec2();
@@ -496,6 +498,8 @@ static void readSlot(InventoryView* view, UiXmlReader& reader, xml::xmlelement e
     if (element->has("onrightclick")) {
         layout.rightClick = readSlotFunc(view, reader, element, "onrightclick");
     }
+    layout.taking = taking;
+    layout.placing = placing;
     auto slot = view->addSlot(layout);
     reader.readUINode(reader, element, *slot);
     view->add(slot);
@@ -507,6 +511,8 @@ static void readSlotsGrid(InventoryView* view, UiXmlReader& reader, xml::xmlelem
     int cols = element->attr("cols", "0").asInt();
     int count = element->attr("count", "0").asInt();
     const int slotSize = InventoryView::SLOT_SIZE;
+    bool taking = element->attr("taking", "true").asBool();
+    bool placing = element->attr("placing", "true").asBool();
     int interval = element->attr("interval", "-1").asInt();
     if (interval < 0) {
         interval = InventoryView::SLOT_INTERVAL;
@@ -537,6 +543,8 @@ static void readSlotsGrid(InventoryView* view, UiXmlReader& reader, xml::xmlelem
         layout.rightClick = readSlotFunc(view, reader, element, "onrightclick");
     }
     layout.padding = padding;
+    layout.taking = taking;
+    layout.placing = placing;
 
     int idx = 0;
     for (int row = 0; row < rows; row++) {