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#ifndef T3DMOUSE_INPUT_H
#define T3DMOUSE_INPUT_H
#include "MouseParameters.h"
#include <QWidget>
#include <QByteArray>
#include <QAbstractNativeEventFilter>
#include <vector>
#include <map>
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0501 //target at least windows XP
#endif
#include <windows.h>
/*
A class for connecting to and receiving data from a 3D Connexion 3D mouse
This helper class manages the connection to a 3D mouse, collecting WM_INPUT
messages from Windows and converting the data into 3D motion data.
This class is based on the SDK from 3D Connexion but is modified to work with Qt.
It is Windows only since it uses the WM_INPUT messages from windows directly
rather than Qt events.
Note that it needs to be compiled with _WIN32_WINNT defined as 0x0501 (windows XP)
or later because the raw input API was added in Windows XP. This also means that
Qt needs to be compiled with this enabled otherwise the QEventDispatcherWin32 blocks
in processEvents because the raw input messages do not cause the thread to be woken if
Qt is compiled for Win 2000 targets.
*/
class Mouse3DInput : public QObject, public QAbstractNativeEventFilter
{
Q_OBJECT
public:
Mouse3DInput(QWidget* widget);
~Mouse3DInput();
virtual bool nativeEventFilter(const QByteArray& eventType, void* msg, long* result);
static bool Is3dmouseAttached();
I3dMouseParam& MouseParams();
const I3dMouseParam& MouseParams() const;
virtual void Move3d(HANDLE device, std::vector<float>& motionData);
virtual void On3dmouseKeyDown(HANDLE device, int virtualKeyCode);
virtual void On3dmouseKeyUp(HANDLE device, int virtualKeyCode);
signals:
void Move3d(std::vector<float>& motionData);
void On3dmouseKeyDown(int virtualKeyCode);
void On3dmouseKeyUp(int virtualKeyCode);
private:
bool InitializeRawInput(HWND hwndTarget);
void OnRawInput(UINT nInputCode, HRAWINPUT hRawInput);
UINT GetRawInputBuffer(PRAWINPUT pData, PUINT pcbSize, UINT cbSizeHeader);
bool TranslateRawInputData(UINT nInputCode, PRAWINPUT pRawInput);
void On3dmouseInput();
class TInputData
{
public:
TInputData() : fAxes(6) {}
bool IsZero() {
return (0.==fAxes[0] && 0.==fAxes[1] && 0.==fAxes[2] &&
0.==fAxes[3] && 0.==fAxes[4] && 0.==fAxes[5]);
}
int fTimeToLive; // For telling if the device was unplugged while sending data
bool fIsDirty;
std::vector<float> fAxes;
};
HWND fWindow;
// Data cache to handle multiple rawinput devices
std::map< HANDLE, TInputData> fDevice2Data;
std::map< HANDLE, unsigned long> fDevice2Keystate;
// 3dmouse parameters
MouseParameters f3dMouseParams; // Rotate, Pan Zoom etc.
// use to calculate distance traveled since last event
DWORD fLast3dmouseInputTime;
};
#endif