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GFC::Gdk::Point Class Reference

A GdkPoint C++ wrapper class. More...

#include <gfc/gdk/types.hh>

List of all members.

Public Member Functions

Constructors

• Point ()

  Construct a new point (0, 0).
  

• Point (int x, int y)

  Construct a new point from two ints.
  

• Point (double x, double y)

  Construct a new point form two doubles.
  

• Point (const GdkPoint &point)

  Construct a new point from an existing GdkPoint.
  

Accessors

• GdkPoint * gdk_point () const

  Get a pointer to the GdkPoint structure.
  

• operator GdkPoint * () const

  Conversion operator; safely converts a Point to a GdkPoint pointer.
  

• int x () const

  Returns the X coordinate of the point.
  

• int y () const

  Returns the Y coordinate of the point.
  

• bool operator== (const Point &other) const

  Equality operator.
  

• bool operator!= (const Point &other) const

  Inequality operator.
  

Methods

• void set_x (int x)

  Set the x coordinate for the point.
  

• void set_x (double x)

  Set the x coordinate for the point.
  

• void set_y (int y)

  Set the y coordinate for the point.
  

• void set_y (double y)

  Set the y coordinate for the point.
  

• void set (int x, int y)

  Set the coordinates for the point.
  

• void set (double x, double y)

  Set the coordinates for the point.
  

• Point & offset (int dx, int dy)

  Move the point.
  

• Point & operator+= (int increment)

  Move the x, y coordinates of the point by increment pixels in a positive direction.
  

• Point & operator+= (const Point &other)

  Move the x, y coordinates of the point by the other.x and other.y.
  

• Point & operator-= (int decrement)

  Move the x, y coordinates of the point by decrement pixels in a negative direction.
  

• Point & operator-= (const Point &other)

  Move the x, y coordinates of the point by the -other.x and -other.y.
  

• Point & operator++ ()

  Move the x, y coordinates of the point by one pixel in a positive direction.
  

• Point & operator-- ()

  Move the x, y coordinates of the point by one pixel in a negative direction.
  

Methods returning a new Point

• Point offset_by (int dx, int dy)

  Calculates a new point whose value is x + dx and y + dy.
  

• Point operator+ (const Point &other) const

  Calculates a new point whose value is x + other.x and y + other.y.
  

• Point operator- (const Point &other) const

  Calculates a new point whose value is x - other.x and y - other.y.
  

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Detailed Description

A GdkPoint C++ wrapper class.

Point is a simple object containing the x and y coordinate of a point. Point uses default copy, assignment and destruction.

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Constructor & Destructor Documentation

GFC::Gdk::Point::Point (  int  x, int  y )

Construct a new point from two ints. Parameters: x  The X coordinate of the point. y  The Y coordinate of the point.

GFC::Gdk::Point::Point (  double  x, double  y )

Construct a new point form two doubles. Parameters: x  The X coordinate of the point. y  The Y coordinate of the point.

GFC::Gdk::Point::Point (  const GdkPoint &  point  )

Construct a new point from an existing GdkPoint. Parameters: point  A GdkPoint.

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Member Function Documentation

Point& GFC::Gdk::Point::offset (  int  dx, int  dy )

Move the point. Parameters: dx  The number of pixels to move the X coordinate of the point. dy  The number of pixels to move the Y coordinate of the point. Returns: A reference to the offset point. dx and dy can be a positive or negative value.

Point GFC::Gdk::Point::offset_by (  int  dx, int  dy )

Calculates a new point whose value is x + dx and y + dy. Parameters: dx  The number of pixels to add the X coordinate of the point. dy  The number of pixels to add the Y coordinate of the point. Returns: A new point. dx and dy can be a positive or negative value.

bool GFC::Gdk::Point::operator!= (  const Point &  other  )  const

Inequality operator. Parameters: other  A Point. Returns: true if this point compares unequal to other.

Point GFC::Gdk::Point::operator+ (  const Point &  other  )  const

Calculates a new point whose value is x + other.x and y + other.y. Parameters: other  A Point. Returns: A new point.

Point& GFC::Gdk::Point::operator++ (   )

Move the x, y coordinates of the point by one pixel in a positive direction. Returns: A reference to the moved point.

Point& GFC::Gdk::Point::operator+= (  const Point &  other  )

Move the x, y coordinates of the point by the other.x and other.y. Parameters: other  A Point. Returns: A reference to the moved point.

Point& GFC::Gdk::Point::operator+= (  int  increment  )

Move the x, y coordinates of the point by increment pixels in a positive direction. Parameters: increment  The number of pixels to increment x, y by. Returns: A reference to the moved point.

Point GFC::Gdk::Point::operator- (  const Point &  other  )  const

Calculates a new point whose value is x - other.x and y - other.y. Parameters: other  A Point. Returns: A new point.

Point& GFC::Gdk::Point::operator-- (   )

Move the x, y coordinates of the point by one pixel in a negative direction. Returns: A reference to the moved point.

Point& GFC::Gdk::Point::operator-= (  const Point &  other  )

Move the x, y coordinates of the point by the -other.x and -other.y. Parameters: other  A Point. Returns: A reference to the moved point.

Point& GFC::Gdk::Point::operator-= (  int  decrement  )

Move the x, y coordinates of the point by decrement pixels in a negative direction. Parameters: decrement  The number of pixels to decrement x, y by. Returns: A reference to the moved point.

bool GFC::Gdk::Point::operator== (  const Point &  other  )  const

Equality operator. Parameters: other  A Point. Returns: true if this point compares equal to other.

void GFC::Gdk::Point::set (  double  x, double  y )

Set the coordinates for the point. Parameters: x  The X coordinate of the point. y  The Y coordinate of the point.

void GFC::Gdk::Point::set (  int  x, int  y )

Set the coordinates for the point. Parameters: x  The X coordinate of the point. y  The Y coordinate of the point.

void GFC::Gdk::Point::set_x (  double  x  )

Set the x coordinate for the point. Parameters: x  The X coordinate of the point.

void GFC::Gdk::Point::set_x (  int  x  )

Set the x coordinate for the point. Parameters: x  The X coordinate of the point.

void GFC::Gdk::Point::set_y (  double  y  )

Set the y coordinate for the point. Parameters: y  The Y coordinate of the point.

void GFC::Gdk::Point::set_y (  int  y  )

Set the y coordinate for the point. Parameters: y  The Y coordinate of the point.

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The documentation for this class was generated from the following file:

• gdk/types.hh

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