create proper handler interface for xController : xEventHandler

This commit is contained in:
Adrien Marquès 2020-02-04 21:08:17 +01:00
parent 5266b5d115
commit 414fbf6404
4 changed files with 30 additions and 19 deletions

View File

@ -12,29 +12,24 @@ xController::~xController(){
void xController::handleEvent(SDL_Event* event){
_mutex.lock();
map<SDL_EventType, EventHandler>::iterator found = _handlers.find( (SDL_EventType) event->type );
// ignore no handler found
if( found == _handlers.end() ){
_mutex.unlock();
return;
for( set<xEventHandler*>::iterator it = _handlers.begin() ; it != _handlers.end() ; it++ ){
xEventHandler* handler = (*it);
handler->handle(event);
}
(*found->second)(event);
_mutex.unlock();
}
// bind a new handler
void xController::attachEvent(SDL_EventType t, EventHandlerArg){
void xController::attachEvent(xEventHandler* handler){
_mutex.lock();
_handlers[ t ] = handler;
_handlers.insert(handler);
_mutex.unlock();
}
// removes an existing handler
void xController::detachEvent(SDL_EventType t){
void xController::detachEvent(xEventHandler* handler){
_mutex.lock();
_handlers.erase(t);
_handlers.erase(handler);
_mutex.unlock();
}

View File

@ -3,11 +3,10 @@
#include "SDL.h"
#include <mutex>
#include <map>
using namespace std;
#include <set>
#include "xEventHandler.h"
#define EventHandlerArg void(* handler)(SDL_Event*)
#define EventHandler void(*)(SDL_Event*)
using namespace std;
class xController{
@ -19,12 +18,12 @@
void handleEvent(SDL_Event* event);
// manage handlers
void attachEvent(SDL_EventType t, EventHandlerArg);
void detachEvent(SDL_EventType t);
void attachEvent(xEventHandler* handler);
void detachEvent(xEventHandler* handler);
private:
// event handlers
map<SDL_EventType, EventHandler> _handlers;
set<xEventHandler*> _handlers;
// thread safety
mutex _mutex;

1
xSDL/xEventHandler.cpp Normal file
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@ -0,0 +1 @@
#include "xEventHandler.h"

16
xSDL/xEventHandler.h Normal file
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@ -0,0 +1,16 @@
#ifndef DEF_XEVENT_HANDLER_H
#define DEF_XEVENT_HANDLER_H
#include "SDL.h"
using namespace std;
class xEventHandler {
public:
// handles the event
virtual void handle(SDL_Event* event) const = 0;
};
#endif