eosim::graphic::Display Class Reference
[Graphic Simulations]

#include <eosim/graphic/Display.hpp>

List of all members.

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Detailed Description

Display window.

Author:

Bruno Martínez, Fernando Pardo and Sebastián Alaggia

Version:

1.1.1

Date:

2005

This class brings a graphical environment to the programmer so he can develop a 2D graphical simulation. To use it an instance of Display must be created as a Model's attribute. Only one instance of Display can be created per run. The window created will be opened while the instance persists.

To synchronize the display with the simulation Display::advance is implemented. We have to invoke this operation every time the simulation advance the time, which is the responsibility of RefreshGraphic Event.

During the run many objects and messages should appear in order to see how the simulation is running, for that there are Sprite y TextSprite (for graphics and text). These elements are linked to a display (in the constructor), and they will appear in the display until there are no references to them, excepting those from the display.

Public Member Functions
	Display (int width, int height)
	The constructor creates a Display with a window with the specified size.
	~Display ()
	The destructor of Display.
void	setTitle (const char *title)
	This operation sets the title of the window where the simulation is displayed.
void	setBackground (const char *file)
	This operation sets the background image in the simulation. The supported file formats are BMP, PNM, XPM, XCF, PCX, GIF, JPG, TIF, PNG y LBM. Otherwise the background is black.
void	setSpeed (double sp)
	This operation changes the rate between real time and simulation time. Real time is measure in miliseconds.
double	getSpeed () const
	This operation returns the rate between real time and simulation time.
int	width () const
	This operation returns the width of the window where the simulation is displayed.
int	height () const
	This operation returns the height of the window where the simulation is displayed.
void	advance (double offsetTime)
	This operation advance simulation the simulation time in the graphical simulation.
Friends
class	Sprite
class	TextSprite

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Member Function Documentation

void eosim::graphic::Display::advance

(

double

offsetTime

)

This operation advance simulation the simulation time in the graphical simulation.

This operation advances the simulation time in offsetTime time unit. It must be called on each time beat, so that the moves of the sprites is synchronized with the simulation time.

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