VideoAgent Class Reference

Inheritance diagram for VideoAgent:

[legend]Collaboration diagram for VideoAgent:

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Detailed Description

Video agent initializes video mode and every cycle lets registered drawers to drawOn(screen).

Definition at line 18 of file VideoAgent.h.

Public Member Functions
virtual void	receiveSimple (const SimpleMsg *msg)
	Handle incoming message.
virtual void	receiveString (const StringMsg *msg)
	Handle incoming message.
void	initVideoMode ()
	Init video mode along options.
Protected Member Functions
virtual void	own_init ()
	Init SDL and grafic window.
virtual void	own_update ()
	Draw all drawer from list.
virtual void	own_shutdown ()
	Shutdown SDL.

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Member Function Documentation

void VideoAgent::initVideoMode (   )

Init video mode along options. Change window only when necessary. Exceptions: SDLException  when video mode cannot be made, the old video mode remain usable Definition at line 95 of file VideoAgent.cpp. { OptionAgent *options = OptionAgent::agent(); int screen_width = options->getAsInt("screen_width", 640); int screen_height = options->getAsInt("screen_height", 480); SysVideo::setCaption(options->getParam("caption", "A game")); if (NULL == m_screen || m_screen->w != screen_width || m_screen->h != screen_height) { changeVideoMode(screen_width, screen_height); } }

void VideoAgent::own_init (   )  [protected, virtual]

Init SDL and grafic window. Register watcher for "fullscren" and "screen_*" options. Exceptions: SDLException  if there is no usuable video mode Reimplemented from BaseAgent. Definition at line 33 of file VideoAgent.cpp. { m_screen = NULL; m_fullscreen = false; if (SDL_Init(SDL_INIT_VIDEO) < 0) { throw SDLException(ExInfo("Init")); } atexit(SDL_Quit); setIcon(Path::dataReadPath("images/icon.png")); registerWatcher("fullscreen"); initVideoMode(); }

void VideoAgent::own_shutdown (   )  [protected, virtual]

Shutdown SDL. Reimplemented from BaseAgent. Definition at line 63 of file VideoAgent.cpp. { SDL_Quit(); }

void VideoAgent::own_update (   )  [protected, virtual]

Draw all drawer from list. First will be drawed first. Reimplemented from BaseAgent. Definition at line 53 of file VideoAgent.cpp. { drawOn(m_screen); SDL_Flip(m_screen); }

void VideoAgent::receiveSimple (  const SimpleMsg *  msg  )  [virtual]

Handle incoming message. Messages: fullscreen ... toggle fullscreen Exceptions: UnknownMsgException  Reimplemented from BaseListener. Definition at line 181 of file VideoAgent.cpp. { if (msg->equalsName("fullscreen")) { OptionAgent *options = OptionAgent::agent(); bool toggle = !(options->getAsBool("fullscreen")); options->setPersistent("fullscreen", toggle); } else { throw UnknownMsgException(msg); } }

void VideoAgent::receiveString (  const StringMsg *  msg  )  [virtual]

Handle incoming message. Messages: param_changed(fullscreen) ... handle fullscreen Exceptions: UnknownMsgException  Reimplemented from BaseListener. Definition at line 201 of file VideoAgent.cpp. { if (msg->equalsName("param_changed")) { std::string param = msg->getValue(); if ("fullscreen" == param) { bool fs = OptionAgent::agent()->getAsBool("fullscreen"); if (fs != m_fullscreen) { toggleFullScreen(); } } else { throw UnknownMsgException(msg); } } else { throw UnknownMsgException(msg); } }

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

• VideoAgent.h
• VideoAgent.cpp

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