GVariant: Add to_bool(), to_int() and to_color().

Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/0f4050903d4

LibGUI/GVariant.h

@@ -60,12 +60,40 @@ public:
         return m_value.as_bool;
     }
 
+    bool to_bool() const
+    {
+        if (type() == Type::Bool)
+            return as_bool();
+        if (type() == Type::String)
+            return !!m_value.as_string;
+        if (type() == Type::Int)
+            return m_value.as_int != 0;
+        if (type() == Type::Rect)
+            return !as_rect().is_null();
+        if (type() == Type::Size)
+            return !as_size().is_null();
+        if (type() == Type::Point)
+            return !as_point().is_null();
+        return is_valid();
+    }
+
     int as_int() const
     {
         ASSERT(type() == Type::Int);
         return m_value.as_int;
     }
 
+    int to_int() const
+    {
+        if (is_int())
+            return as_int();
+        if (is_bool())
+            return as_bool() ? 1 : 0;
+        if (is_float())
+            return (int)as_float();
+        return 0;
+    }
+
     float as_float() const
     {
         ASSERT(type() == Type::Float);
@@ -111,6 +139,13 @@ public:
         return Color::from_rgba(m_value.as_color);
     }
 
+    Color to_color() const
+    {
+        if (is_color())
+            return as_color();
+        return Color();
+    }
+
     Color to_color(Color default_value) const
     {
         if (type() == Type::Color)

SharedGraphics/Point.h

@@ -61,6 +61,8 @@ public:
     operator WSAPI_Point() const;
     String to_string() const { return String::format("[%d,%d]", x(), y()); }
 
+    bool is_null() const { return !m_x && !m_y; }
+
 private:
     int m_x { 0 };
     int m_y { 0 };