vrj::PfInputHandler Class Reference

Performer input handler. More...

#include <vrj/Draw/Pf/PfInputHandler.h>

List of all members.

Public Member Functions
	PfInputHandler (pfPipeWindow *pipeWindow, const std::string &displayName)
	Creates an adaptor which will route events from Performer into platform-specific events.
void	config (jccl::ConfigElementPtr e, vrj::Display *disp)
	Configures the adaptor.
void	checkEvents ()
void	handleEvents ()
	Grab events from Performer window and sends them to InputAreaXWin::handleEvent() or InputAreaWin32::handleEvent().
Static Public Member Functions
static int	errorHandler (::Display *display, XErrorEvent *e)
	Handles error output from X services Traps X errors instead of killing the application.

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Detailed Description

Performer input handler.

Definition at line 82 of file PfInputHandler.h.

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Constructor & Destructor Documentation

vrj::PfInputHandler::PfInputHandler	(	pfPipeWindow *	pipeWindow,
		const std::string &	displayName
	)

Creates an adaptor which will route events from Performer into platform-specific events.

Parameters:

	pipeWindow	Performer window to grab events from.
	displayName	The name of the display.

Definition at line 53 of file PfInputHandler.cpp.

{
   mName = displayName;
   mPipeWindow = pipeWindow;
   mPipe = pfGetPWinPipe(mPipeWindow);
   mBlocking = false;
#ifdef VPR_OS_Windows
   mWinHandle = pipeWindow->getWSWindow();
#else
   // Get the XWindow from that we are going to recieve events from.
   mXWindow = pfGetPWinWSWindow(mPipeWindow);
   openConnection();
#endif
}

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Member Function Documentation

void vrj::PfInputHandler::config	(	jccl::ConfigElementPtr	e,
		vrj::Display *	disp
	)			[inline]

Configures the adaptor.

Parameters:

	e	ConfigElement that contains all configuration information to configure an InputArea.
	disp	VR Juggler display which contains size info.

Definition at line 106 of file PfInputHandler.h.

References vrj::Display::getOriginAndSize().

Referenced by vrj::PfDrawManager::addDisplay().

   {
      gadget::InputArea::config(e);
      int originX, originY, width, height;
      disp->getOriginAndSize(originX, originY, width, height);
      mWidth = (unsigned int)width;
      mHeight = (unsigned int)height;
   }

void vrj::PfInputHandler::checkEvents

(

)

Definition at line 124 of file PfInputHandler.cpp.

References handleEvents().

{
   handleEvents();
}

void vrj::PfInputHandler::handleEvents

(

)

Grab events from Performer window and sends them to InputAreaXWin::handleEvent() or InputAreaWin32::handleEvent().

Precondition:

openConnection has been called.

Definition at line 157 of file PfInputHandler.cpp.

Referenced by checkEvents().

{
   XEvent      event;

   /*
   // In Linux, XEventsQueued with QueuedAlready results in an
   // extreme amount of latency in SP mode since the event queue
   // only ever reports one event per call.  It's necessary to
   // change this to re-query the X server for more events after
   // the first one is pulled from the queue.  However this results
   // in a server roundtrip (in Linux) and probably causes a performance
   // hit.  So only being defined for LINUX
   */

   while (XPending(mXDisplay)) 
   {
      XNextEvent(mXDisplay, &event);
      
      switch (event.type) 
      {
      case ClientMessage:
         //if ((event.xclient.message_type == wm_protocols) &&
         //    (event.xclient.data.l[0] == wm_delete_window))
         {
            //events->devQ[events->numDevs] = PFUDEV_WINQUIT;
            //events->devVal[events->numDevs] = 1;
            //events->devCount[PFUDEV_WINQUIT] += 1;
            //events->numDevs++;
         } 
         break;
      default:
         // If we have a valid KeyboardMouseDevice, process
         // all keyboard/mouse events
         if ( NULL != mKeyboardMouseDevice )
         {
            // Forward events on to subclass. The magic of inheritance :)
            handleEvent(event);
         }
         break;
      }
   }
}

int vrj::PfInputHandler::errorHandler	(	::Display *	display,
		XErrorEvent *	e
	)			[static]

Handles error output from X services Traps X errors instead of killing the application.

Definition at line 200 of file PfInputHandler.cpp.

{
   char* errorOutput = new char[512];
   XGetErrorText(e->display, (int) e->error_code, errorOutput, 512);
   vprDEBUG(vprDBG_ERROR, vprDBG_CRITICAL_LVL)
         << clrOutNORM(clrRED, "ERROR:")
         << "PfInputHandler::errorHandler Caught X Error '\n" << errorOutput
         << "'\n" << vprDEBUG_FLUSH;
   delete [] errorOutput;
   return 0;
}

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

• PfInputHandler.h
• PfInputHandler.cpp

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