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Public Member Functions | Static Public Member Functions | Public Attributes

Common::Rect Struct Reference

#include <rect.h>

List of all members.

Public Member Functions

void clip (const Rect &r)
void clip (int16 maxw, int16 maxh)
bool contains (int16 x, int16 y) const
bool contains (const Point &p) const
bool contains (const Rect &r) const
void debugPrint (int debuglevel=0, const char *caption="Rect:") const
bool equals (const Rect &r) const
void extend (const Rect &r)
void grow (int16 offset)
int16 height () const
bool intersects (const Rect &r) const
bool isEmpty () const
bool isValidRect () const
void moveTo (const Point &p)
void moveTo (int16 x, int16 y)
bool operator!= (const Rect &rhs) const
bool operator== (const Rect &rhs) const
 Rect (int16 w, int16 h)
 Rect (int16 x1, int16 y1, int16 x2, int16 y2)
void setHeight (int16 aHeight)
void setWidth (int16 aWidth)
void translate (int16 dx, int16 dy)
int16 width () const

Static Public Member Functions

static Rect center (int16 cx, int16 cy, int16 w, int16 h)

Public Attributes

int16 bottom
int16 left
 The point at the top left of the rectangle (part of the rect).
int16 right
 The point at the bottom right of the rectangle (not part of the rect).
int16 top

Detailed Description

Simple class for handling a rectangular zone.

Note: This implementation is built around the assumption that (top,left) is part of the rectangle, but (bottom,right) is not. This is reflected in various methods, including contains(), intersects() and others.

Another very wide spread approach to rectangle classes treats (bottom,right) also as a part of the rectangle.

Conceptually, both are sound, but the approach we use saves many intermediate computations (like computing the height in our case is done by doing this: height = bottom - top; while in the alternate system, it would be height = bottom - top + 1;

When writing code using our Rect class, always keep this principle in mind!

Definition at line 84 of file rect.h.

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

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