Lua: Export sizePolicy parameter for Widgets

Extend lua bindings to support horizontal and vertical size policies.

Change-Id: I663b17bd11086efd2cbf430aace800fde55b6c0d
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>

src/libs/utils/layoutbuilder.cpp

@@ -20,6 +20,7 @@
 #include <QPushButton>
 #include <QScrollArea>
 #include <QSize>
+#include <QSizePolicy>
 #include <QSpacerItem>
 #include <QSpinBox>
 #include <QSplitter>
@@ -791,6 +792,11 @@ void Widget::setCursor(Qt::CursorShape shape)
     access(this)->setCursor(shape);
 }
 
+void Widget::setSizePolicy(const QSizePolicy &policy)
+{
+    access(this)->setSizePolicy(policy);
+}
+
 void Widget::activateWindow()
 {
     access(this)->activateWindow();

src/libs/utils/layoutbuilder.h

@@ -31,6 +31,7 @@ class QObject;
 class QPushButton;
 class QScrollArea;
 class QSize;
+class QSizePolicy;
 class QSpinBox;
 class QSplitter;
 class QStackedWidget;
@@ -250,6 +251,7 @@ public:
     void setAutoFillBackground(bool);
     void setLayout(const Layout &layout);
     void setSize(int, int);
+    void setSizePolicy(const QSizePolicy &policy);
     void setFixedSize(const QSize &);
     void setWindowTitle(const QString &);
     void setWindowFlags(Qt::WindowFlags);
@@ -537,6 +539,7 @@ QTC_DEFINE_BUILDER_SETTER(widgetAttribute, setWidgetAttribute);
 QTC_DEFINE_BUILDER_SETTER(autoFillBackground, setAutoFillBackground);
 QTC_DEFINE_BUILDER_SETTER(readOnly, setReadOnly);
 QTC_DEFINE_BUILDER_SETTER(markdown, setMarkdown);
+QTC_DEFINE_BUILDER_SETTER(sizePolicy, setSizePolicy);
 QTC_DEFINE_BUILDER_SETTER(basePath, setBasePath);
 QTC_DEFINE_BUILDER_SETTER(fixedSize, setFixedSize);
 

src/plugins/lua/bindings/gui.cpp

@@ -88,6 +88,7 @@ CREATE_HAS_FUNC(onTextChanged, nullptr, nullptr)
 CREATE_HAS_FUNC(onClicked, nullptr, nullptr)
 CREATE_HAS_FUNC(setText, QString())
 CREATE_HAS_FUNC(setMarkdown, QString())
+CREATE_HAS_FUNC(setSizePolicy, QSizePolicy())
 CREATE_HAS_FUNC(setReadOnly, bool())
 CREATE_HAS_FUNC(setTitle, QString())
 CREATE_HAS_FUNC(setValue, int())
@@ -290,6 +291,19 @@ void setProperties(std::unique_ptr<T> &item, const sol::table &children, QObject
         if (markdown)
             item->setMarkdown(*markdown);
     }
+    if constexpr (has_setSizePolicy<T>) {
+        auto sizePolicy = children.get<sol::optional<sol::table>>("sizePolicy");
+        if (sizePolicy) {
+            QTC_ASSERT(
+                sizePolicy->size() == 2,
+                throw sol::error(
+                    "sizePolicy must be array of 2 elements: horizontalPolicy, verticalPolicy.")
+                );
+            auto horizontalPolicy = sizePolicy->get<QSizePolicy::Policy>(1);
+            auto verticalPolicy = sizePolicy->get<QSizePolicy::Policy>(2);
+            item->setSizePolicy(QSizePolicy(horizontalPolicy, verticalPolicy));
+        }
+    }
     if constexpr (has_setTitle<T>) {
         item->setTitle(children.get_or<QString>("title", ""));
     }
@@ -552,6 +566,9 @@ void setupGuiModule()
         mirrorEnum(gui, QMetaEnum::fromType<Qt::TextInteractionFlag>());
         mirrorEnum(gui, QMetaEnum::fromType<Qt::CursorShape>());
 
+        auto sizePolicy = gui.create_named("QSizePolicy");
+        mirrorEnum(sizePolicy, QMetaEnum::fromType<QSizePolicy::Policy>());
+
         gui.new_usertype<Stack>(
             "Stack",
             sol::call_constructor,

src/plugins/lua/meta/gui.lua

@@ -26,6 +26,7 @@ gui.widget = {}
 ---@field windowFlags? WindowType[] The window flags of the widget.
 ---@field widgetAttributes? WidgetAttributeMapT<boolean> The widget attributes of the widget.
 ---@field autoFillBackground? boolean A boolean, representing whether the widget should automatically fill its background.
+---@field sizePolicy? SizePolicy.Policy[] Two size policies of the widget, horizontal and vertical.
 gui.baseWidgetOptions = {}
 
 ---@class (exact) WidgetOptions : BaseWidgetOptions
@@ -460,6 +461,20 @@ gui.CursorShape = {
     CustomCursor = 0
 }
 
+gui.SizePolicy = {
+    --- Enum representing size policy.
+    ---@enum Policy
+    Policy = {
+        Fixed = 0,
+        Minimum = 0,
+        Maximum = 0,
+        Preferred = 0,
+        MinimumExpanding = 0,
+        Expanding = 0,
+        Ignored = 0
+    }
+}
+
 ---@class Space : Layout
 gui.space = {}