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GHOST_SpaceballManager.cpp
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GHOST_SpaceballManager.cpp
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// note: an implementation is currently only provided for Windows, but designed to be easy to move to Linux, etc.
/**
To use this implemenation, you must specify the #define WITH_SPACEBALL for the ghost library.
Only this cpp file is affected by the macro, the header file and everything else are independent
of the spaceball libraries.
The 3dXWare SDK is available from the tab on the left side of -
http://www.3dconnexion.com/support/4a.php
The SDK is necessary to build this file with WITH_SPACEBALL defined.
*/
#include "GHOST_SpaceballManager.h"
#ifdef WITH_SPACEBALL
#include "spwmacro.h"
#include "si.h"
#include "spwmath.h"
#include "siapp.h"
#include "GHOST_WindowWin32.h"
#endif
GHOST_SpaceballManager::GHOST_SpaceballManager()
{
#ifdef WITH_SPACEBALL
SiInitialize ();
m_DeviceHandle = SI_NO_HANDLE;
#endif
}
void
GHOST_SpaceballManager::spaceballOpen(GHOST_IWindow* window)
{
#ifdef WITH_SPACEBALL
GHOST_WindowWin32* win32 = (GHOST_WindowWin32*) window; // GHOST_IWindow doesn't have RTTI...
if (win32 != 0)
{
SiOpenData oData;
SiOpenWinInit (&oData, win32->getHWND());
m_DeviceHandle = (void*) SiOpen ("Blender", SI_ANY_DEVICE, SI_NO_MASK,
SI_EVENT, &oData);
if (m_DeviceHandle == SI_NO_HANDLE)
{
SiTerminate ();
}
else
{
SiSetUiMode ((SiHdl) m_DeviceHandle, SI_UI_NO_CONTROLS);
}
}
#endif
}
GHOST_SpaceballManager::~GHOST_SpaceballManager()
{
#ifdef WITH_SPACEBALL
if ((SiHdl) m_DeviceHandle != SI_NO_HANDLE)
{
SiClose ((SiHdl) m_DeviceHandle);
SiTerminate ();
m_DeviceHandle = (void*) SI_NO_HANDLE;
}
#endif
}
GHOST_TEventSpaceballData*
GHOST_SpaceballManager::handle(unsigned int message, unsigned int* wParam, unsigned long* lParam)
{
#ifdef WITH_SPACEBALL
SpwReturnValue ret;
SiGetEventData EData;
SiSpwEvent event;
static GHOST_TEventSpaceballData sbdata;
bool handledSpaceball = false;
if (m_DeviceHandle != SI_NO_HANDLE)
{
SiGetEventWinInit (&EData, message, (WPARAM) wParam, (LPARAM) lParam);
if ((ret = SiGetEvent (m_DeviceHandle, 0, &EData, &event)) == SI_IS_EVENT)
{
if (event.type == SI_MOTION_EVENT)
{
sbdata.tx = (float)(event.u.spwData.mData[SI_TX]) * (1.0f/256.0f); // -X left
sbdata.ty = (float)(event.u.spwData.mData[SI_TY]) * (1.0f/256.0f); // +y up
sbdata.tz = (float)(event.u.spwData.mData[SI_TZ]) * (1.0f/256.0f); // +z forward
sbdata.rx = (float)(event.u.spwData.mData[SI_RX]) * 0.001f;
sbdata.ry = (float)(event.u.spwData.mData[SI_RY]) * 0.001f;
sbdata.rz = (float)(event.u.spwData.mData[SI_RZ]) * 0.001f;
sbdata.dt = (float)(event.u.spwData.period);
}
if (event.type == SI_BUTTON_EVENT)
{
printf("Button event\n");
//SbButtonEvent (&event);
}
handledSpaceball = true;
}
else if (ret != SI_NOT_EVENT)
{
//ShowEventError (ret);
handledSpaceball = true;
}
}
return handledSpaceball ? &sbdata : 0;
#else
return 0;
#endif
}

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