Utils: Add ScrollArea

Change-Id: I772f1d7dbc1c24d16ddcb54c3d66a89d9c238bf7
Reviewed-by: hjk <hjk@qt.io>

src/libs/utils/layoutbuilder.cpp

@@ -15,6 +15,7 @@
 #include <QGroupBox>
 #include <QLabel>
 #include <QPushButton>
+#include <QScrollArea>
 #include <QSize>
 #include <QSpacerItem>
 #include <QSpinBox>
@@ -967,6 +968,19 @@ void addToStack(Stack *stack, QWidget *inner)
     access(stack)->addWidget(inner);
 }
 
+// ScrollArea
+
+ScrollArea::ScrollArea(const Layout &inner)
+{
+    ptr = new Implementation;
+    access(this)->setWidget(inner.emerge());
+}
+
+void ScrollArea::setLayout(const Layout &inner)
+{
+    access(this)->setWidget(inner.emerge());
+}
+
 // Splitter
 
 Splitter::Splitter(std::initializer_list<I> ps)

src/libs/utils/layoutbuilder.h

@@ -29,6 +29,7 @@ class QLabel;
 class QLayout;
 class QObject;
 class QPushButton;
+class QScrollArea;
 class QSize;
 class QSpinBox;
 class QSplitter;
@@ -360,6 +361,16 @@ public:
     void setChildrenCollapsible(bool collapsible);
 };
 
+class QTCREATOR_UTILS_EXPORT ScrollArea : public Widget
+{
+public:
+    using Implementation = QScrollArea;
+
+    ScrollArea(const Layout &inner);
+
+    void setLayout(const Layout &inner);
+};
+
 class QTCREATOR_UTILS_EXPORT Stack : public Widget
 {
 public:

src/plugins/lua/bindings/gui.cpp

@@ -517,6 +517,20 @@ void setupGuiModule()
             sol::base_classes,
             sol::bases<Widget, Object, Thing>());
 
+        gui.new_usertype<ScrollArea>(
+            "ScrollArea",
+            sol::call_constructor,
+            sol::factories(
+                [](const Layout &inner) {
+                    auto item = std::make_unique<ScrollArea>(inner);
+                    return item;
+                },
+                [guard](const sol::table &children) {
+                    return constructWidgetType<ScrollArea>(children, guard);
+                }),
+            sol::base_classes,
+            sol::bases<Widget, Object, Thing>());
+
         gui.new_usertype<TextEdit>(
             "TextEdit",
             sol::call_constructor,

src/plugins/lua/meta/gui.lua

@@ -104,6 +104,13 @@ function gui.Form(children) end
 ---@class Stack : Widget
 local stack = {}
 
+---A ScrollArea widget.
+---@class ScrollArea : Widget
+
+---@param options WidgetOptions
+---@return ScrollArea
+function gui.ScrollArea(options) end
+
 ---@param options WidgetOptions
 ---@return Stack
 function gui.Stack(options) end