Initial commit

1 files changed, 105 insertions, 0 deletions

diff --git a/CruUI/ui/ui_base.h b/CruUI/ui/ui_base.h
new file mode 100644
index 00000000..8dfbf53d
--- /dev/null
+++ b/CruUI/ui/ui_base.h
@@ -0,0 +1,105 @@
+#pragma once
+
+namespace cru
+{
+    namespace ui
+    {
+        struct Point
+        {
+            static const Point zero;
+
+            Point() = default;
+            Point(const float x, const float y) : x(x), y(y) { }
+
+            float x;
+            float y;
+        };
+
+        struct Size
+        {
+            static const Size zero;
+
+            Size() = default;
+            Size(const float width, const float height) : width(width), height(height) { }
+
+            float width;
+            float height;
+        };
+
+        struct Rect 
+        {
+            Rect() = default;
+            Rect(const float left, const float top, const float width, const float height)
+                : left(left), top(top), width(width), height(height) { }
+            Rect(const Point& lefttop, const Size& size)
+                : left(lefttop.x), top(lefttop.y), width(size.width), height(size.height) { }
+
+            static Rect FromVertices(const float left, const float top, const float right, const float bottom)
+            {
+                return Rect(left, top, right - left, bottom - top);
+            }
+
+            float GetRight() const
+            {
+                return left + width;
+            }
+
+            float GetBottom() const
+            {
+                return top + height;
+            }
+
+            Point GetLeftTop() const
+            {
+                return Point(left, top);
+            }
+
+			Point GetRightBottom() const
+            {
+				return Point(left + width, top + height);
+			}
+
+            Size GetSize() const
+            {
+                return Size(width, height);
+            }
+
+            bool IsPointInside(const Point& point) const
+            {
+                return
+                    point.x >= left         &&
+                    point.x < GetRight()    &&
+                    point.y >= top          &&
+                    point.y < GetBottom();
+            }
+
+            float left = 0.0f;
+            float top = 0.0f;
+            float width = 0.0f;
+            float height = 0.0f;
+        };
+
+        struct Thickness
+        {
+            Thickness() : Thickness(0) { }
+            explicit Thickness(const float width)
+                : left(width), top(width), right(width), bottom(width) { }
+
+            Thickness(const float left, const float top, const float right, const float bottom)
+                : left(left), top(top), right(right), bottom(bottom) { }
+
+
+            float left;
+            float top;
+            float right;
+            float bottom;
+        };
+
+        enum class MouseButton
+        {
+            Left,
+            Right,
+            Middle
+        };
+    }
+}