sgl::CompositeObject Class Reference

#include <sgl.h>

Inheritance diagram for sgl::CompositeObject:

Collaboration diagram for sgl::CompositeObject:

Public Member Functions
	CompositeObject ()
void	paint () const override
void	move_to (double x, double y) override
void	internal_add (GraphicalObject *obj)
template<typename T , typename... Args>
T *	add (Args &&... args)
Public Member Functions inherited from sgl::GraphicalObject
	GraphicalObject (double left, double bottom, double width, double height)
	GraphicalObject (const GraphicalObject &other)
GraphicalObject &	operator= (const GraphicalObject &other)
virtual	~GraphicalObject ()
virtual double	get_left () const
virtual double	get_bottom () const
virtual double	get_width () const
virtual double	get_height () const
virtual void	set (double x, double y, double width, double height)
virtual void	mouse_pressed (double x, double y, MouseButton button)
virtual void	mouse_released (double x, double y, MouseButton button)
virtual void	mouse_moved (double x, double y)
virtual void	mouse_dragged (double x, double y)
virtual void	key_pressed (int k, double x, double y)
virtual bool	hit (double x, double y)
virtual Window *	set_window (ObjectWindow *win)
virtual Window *	get_window () const
virtual void	set_mouse_over (bool flag)
virtual CursorShape	set_cursor (CursorShape cursor)
virtual CursorShape	get_cursor ()

Protected Attributes
std::vector< GraphicalObject * >	objects
Protected Attributes inherited from sgl::GraphicalObject
ObjectWindow *	window
double	x_hit_offset
double	y_hit_offset
double	left
double	bottom
double	width
double	height
CursorShape	cursor
bool	mouse_over

Additional Inherited Members
Public Attributes inherited from sgl::GraphicalObject
const unsigned	id

Detailed Description

A composite object aggregates a collection of graphical objects (even other composite objects into a single graphical object.

Constructor & Destructor Documentation

CompositeObject()

sgl::CompositeObject::CompositeObject

(

)

The constructor makes an initially empty container.

Member Function Documentation

add()

template<typename T , typename... Args>

T* sgl::CompositeObject::add ( Args &&...  args )

inline

Creates and adds a graphical object to the composite object. Clients specify the exact type of the graphical object as the template parameter and pass any arguments required by that object's constructor in the parameter list.

Template Parameters

T	the type of graphical object to add to this composite object

Parameters

args	forwards the method parameters to the graphical object's constructor

Returns

a pointer to the newly and added created graphical object

internal_add()

void sgl::CompositeObject::internal_add

(

GraphicalObject *

obj

)

Adds a graphical object to this container. Adjusts the container's size accordingly.

Parameters

obj	a pointer to the graphical object to add.

Returns

nothing.

Adds a graphical object to this container. Adjusts the container's size accordingly. Clients ordinarily call add method instead; the add method allocates space for the added object and relieves the client of memory management.

Parameters

obj	a pointer to the graphical object to add.

Returns

nothing.

move_to()

void sgl::CompositeObject::move_to ( double  x, double  y  )

overridevirtual

Repositions the lower-left corner of the composite object's boundng box to (x,y). The positions of the contained graphical objects are updated accordingly.

Reimplemented from sgl::GraphicalObject.

paint()

void sgl::CompositeObject::paint ( ) const

overridevirtual

Draws each object that makes up the composite object.

Returns

nothing.

Implements sgl::GraphicalObject.

Member Data Documentation

objects

std::vector<GraphicalObject *> sgl::CompositeObject::objects

protected

The collection of contained graphical objects.

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

• sgl.h
• sgl.hpp