257 lines
8.6 KiB
C
257 lines
8.6 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __DRAWING_RECT_H__
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#define __DRAWING_RECT_H__
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#include <NsCore/Noesis.h>
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#include <NsCore/ReflectionImplement.h>
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#include <NsCore/StringFwd.h>
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#include <NsDrawing/TypesApi.h>
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namespace Noesis
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{
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class Transform2;
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class Matrix4;
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struct Size;
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struct Sizei;
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struct Point;
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struct Pointi;
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struct Recti;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// A 2D Rectangle defined by an origin and a size
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////////////////////////////////////////////////////////////////////////////////////////////////////
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struct Rect
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{
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float x;
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float y;
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float width;
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float height;
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/// Default constructor which initializes all values to 0
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Rect();
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/// Constructor from coordinates for the sides of the rectangle
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/// The width of the new rectangle is right - left
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/// The height of the new rectangle is bottom - top
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Rect(float left, float top, float right, float bottom);
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/// Constructor from size. The created rectangle is located at the origin (0,0)
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explicit Rect(const Size& size);
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/// Constructor from location and size
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Rect(const Point& location, const Size& size);
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/// Constructor from an integer rect
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Rect(const Recti& rect);
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/// Copy constructor
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Rect(const Rect& rect) = default;
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/// Copy operator
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Rect& operator=(const Rect& rect) = default;
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/// Comparison operators
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bool operator==(const Rect& rect) const;
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bool operator!=(const Rect& rect) const;
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/// Gets or sets the position of the rectangle's top-left corner
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Point GetLocation() const;
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void SetLocation(const Point& location);
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/// Gets or sets the width and height of the rectangle
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Size GetSize() const;
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void SetSize(const Size& size);
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/// Accessors to rectangle sides
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float GetLeft() const;
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float GetRight() const;
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float GetTop() const;
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float GetBottom() const;
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/// Accessors to rectangle corners
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Point GetTopLeft() const;
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Point GetTopRight() const;
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Point GetBottomLeft() const;
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Point GetBottomRight() const;
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/// Indicates whether this rectangle is empty (its size is 0)
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bool IsEmpty() const;
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/// Determines whether this rectangle contains the specified point or rectangle
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bool Contains(float x, float y) const;
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bool Contains(const Point& point) const;
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bool Contains(const Rect& rect) const;
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/// Expands or contracts the rectangle by the specified amount
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/// The width of the resulting rectangle is increased or decreased by twice the specified width
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/// offset, because it is applied to both the left and right sides of the rectangle. Likewise,
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/// the height of the rectangle is increased or decreased by twice the specified height
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/// If the specified width or height modifiers shrink the rectangle by more than its current
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/// width or height (giving a negative area) this rectangle becomes the Empty rectangle
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void Inflate(float width, float height);
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void Inflate(const Size& size);
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/// Finds the intersection of two rectangles and stores the result as a Rect structure
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Rect Intersect(const Rect& rect) const;
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/// Indicates whether the specified rectangle intersects with this rectangle
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bool IntersectsWith(const Rect& rect) const;
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/// Translates the rectangle by the specified amount
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void Offset(const Point& offset);
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/// Multiplies the size of the current rectangle by the specified x and y value
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void Scale(float scaleX, float scaleY);
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/// Expands a rectangle exactly enough to contain the specified rectangle or point
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void Expand(const Point& point);
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void Expand(const Rect& rect);
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/// Transforms the rectangle by the given matrix
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void Transform(const Transform2& mtx);
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void Transform(const Matrix4& mtx);
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/// Creates a string representation of this rectangle
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/// The string has the following form: "x,y,width,height"
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NS_DRAWING_TYPES_API String ToString() const;
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/// Tries to parse a Rect from a string
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NS_DRAWING_TYPES_API static bool TryParse(const char* str, Rect& result);
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/// Empty rect (with all members set to 0)
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static Rect Empty();
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NS_IMPLEMENT_INLINE_REFLECTION(Rect, NoParent)
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{
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NsProp("X", &Rect::x);
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NsProp("Y", &Rect::y);
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NsProp("Width", &Rect::width);
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NsProp("Height", &Rect::height);
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NsProp("IsEmpty", &Rect::IsEmpty);
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NsProp("Left", &Rect::GetLeft);
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NsProp("Top", &Rect::GetTop);
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NsProp("Right", &Rect::GetRight);
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NsProp("Bottom", &Rect::GetBottom);
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}
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// A 2D Rectangle defined by an integer origin and an integer size
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////////////////////////////////////////////////////////////////////////////////////////////////////
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struct Recti
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{
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int x;
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int y;
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uint32_t width;
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uint32_t height;
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/// Default constructor which initializes all values to 0
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Recti();
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/// Constructor from coordinates for the sides of the rectangle
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/// The width of the new rectangle is right - left
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/// The height of the new rectangle is bottom - top
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Recti(int left, int top, int right, int bottom);
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/// Constructor from size. The created rectangle is located at the origin (0,0)
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explicit Recti(const Sizei& size);
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/// Constructor from location and size
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Recti(const Pointi& location, const Sizei& size);
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/// Copy constructor
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Recti(const Recti& rect) = default;
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/// Copy operator
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Recti& operator=(const Recti& rect) = default;
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/// Comparison operators
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bool operator==(const Recti& rect) const;
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bool operator!=(const Recti& rect) const;
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/// Gets or sets the position of the rectangle's top-left corner
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Pointi GetLocation() const;
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void SetLocation(const Pointi& location);
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/// Gets or sets the width and height of the rectangle
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Sizei GetSize() const;
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void SetSize(const Sizei& size);
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/// Accessors to rectangle sides
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int GetLeft() const;
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int GetRight() const;
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int GetTop() const;
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int GetBottom() const;
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/// Accessors to rectangle corners
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Pointi GetTopLeft() const;
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Pointi GetTopRight() const;
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Pointi GetBottomLeft() const;
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Pointi GetBottomRight() const;
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/// Indicates whether this rectangle is empty (its size is 0)
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bool IsEmpty() const;
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/// Determines whether this rectangle contains the specified point or rectangle
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bool Contains(int x, int y) const;
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bool Contains(const Pointi& point) const;
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bool Contains(const Recti& rect) const;
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/// Expands or contracts the rectangle by the specified amount
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/// The width of the resulting rectangle is increased or decreased by twice the specified width
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/// offset, because it is applied to both the left and right sides of the rectangle. Likewise,
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/// the height of the rectangle is increased or decreased by twice the specified height
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/// If the specified width or height modifiers shrink the rectangle by more than its current
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/// width or height (giving a negative area) this rectangle becomes the Empty rectangle
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void Inflate(int width, int height);
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void Inflate(const Sizei& size);
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/// Finds the intersection of two rectangles and stores the result as a Recti structure
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Recti Intersect(const Recti& rect) const;
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/// Indicates whether the specified rectangle intersects with this rectangle
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bool IntersectsWith(const Recti& rect) const;
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/// Translates the rectangle by the specified amount
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void Offset(const Pointi& offset);
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/// Multiplies the size of the current rectangle by the specified x and y value
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void Scale(int scaleX, int scaleY);
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/// Expands a rectangle exactly enough to contain the specified rectangle or point
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void Expand(const Pointi& point);
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void Expand(const Recti& rect);
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/// Creates a string representation of this rectangle
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/// The string has the following form: "x,y,width,height"
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NS_DRAWING_TYPES_API String ToString() const;
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/// Tries to parse a Recti from a string
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NS_DRAWING_TYPES_API static bool TryParse(const char* str, Recti& result);
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/// Empty rect (with all members set to 0)
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static Recti Empty();
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NS_IMPLEMENT_INLINE_REFLECTION(Recti, NoParent)
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{
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NsProp("X", &Recti::x);
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NsProp("Y", &Recti::y);
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NsProp("Width", &Recti::width);
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NsProp("Height", &Recti::height);
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}
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};
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}
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#include <NsDrawing/Rect.inl>
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#endif
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