LRESULT CMFC_DEMOView::OnWTPacket(WPARAM wSerial, LPARAM hCtx)
{
// Read the packet
PACKET pkt;
gpWTPacket( (HCTX)hCtx, wSerial, &pkt );
// Process packets in order, one at a time
CSingleLock lock( pWTMutex, TRUE );
CDC *pDC = GetDC();
// Get window size
RECT window_rect;
GetWindowRect( &window_rect );
POINT size;
size.x = window_rect.right - window_rect.left;
size.y = window_rect.bottom - window_rect.top;
// Erase the old cursor
if( csr.x >= 0 ) {
CRgn r;
r.CreateRectRgn( csr.x - 2, csr.y - 2, csr.x + 2, csr.y + 2 );
pDC->InvertRgn( &r );
}
csr.x = (size.x * pkt.pkX) / lc.lcInExtX;
csr.y = size.y - (size.y * pkt.pkY) / lc.lcInExtY;
if( pkt.pkButtons ) {
CMFC_DEMODoc *pDoc = GetDocument();
list<point> * lst = pDoc->GetLst();
if( prev_pkButtons ) {
list<point>::iterator i = lst->end();
i--;
pDC->MoveTo(abs(i->x),abs(i->y));
lst->push_back(csr);
pDC->LineTo(csr);
/********************* Write something below ********************/
new_time = clock(); // some problems...
SetSerial();
int x = csr.x - DISPLAY_OFFSET_X;
int y = csr.y - DISPLAY_OFFSET_Y;
if(start == 1 && (double)(new_time - old_time) / CLOCKS_PER_SEC > 2) {
WacomTrace("Time diff: %f\n", (double)(new_time - old_time) / CLOCKS_PER_SEC);
start = 0;
ConnectPoints();
if((double)(new_time - old_time) / CLOCKS_PER_SEC > 4) {
Output();
Reset();
} else {
Set(x, y);
}
} else {
if(start == 0 || (double)(new_time - old_time) / CLOCKS_PER_SEC > 0.15) {
WacomTrace("Time diff: %f\n", (double)(new_time - old_time) / CLOCKS_PER_SEC);
Set(x, y);
}
start = 1;
}
old_time = new_time;
/********************* Write something above ********************/
} else {
POINT pt;
pt.x = -csr.x;
pt.y = -csr.y;
lst->push_back(pt);
}
}
prev_pkButtons = pkt.pkButtons;
// Draw a new cursor
CRgn r;
r.CreateRectRgn( csr.x - 2, csr.y - 2, csr.x + 2, csr.y + 2 );
pDC->InvertRgn( &r );
ReleaseDC( pDC );
return TRUE;
}
BOOL TabletBase::ProcessMessage(UINT msg, WPARAM wParam, LPARAM lParam)
{
PACKET pkt; /* the current packet */
HDC hDC; /* handle for Device Context */
PAINTSTRUCT psPaint; /* the paint structure */
//渡された message から、イベントの種類を解析する
switch(msg){
case WM_PAINT: { /* Paint the window */
int ZAngle; /* Raw Altitude */
UINT Thata; /* Raw Azimuth */
double ZAngle2; /* Adjusted Altitude */
double Thata2; /* Adjusted Azimuth */
char szOutput[128]; /* String for outputs */
if (m_TiltSupport) {
/*
wintab.h defines .orAltitude
as a UINT but documents .orAltitude
as positive for upward angles
and negative for downward angles.
WACOM uses negative altitude values to
show that the pen is inverted;
therefore we cast .orAltitude as an
(int) and then use the absolute value.
*/
ZAngle = (int)m_ortNew.orAltitude;
ZAngle2 = m_altAdjust - (double)abs(ZAngle)/m_altFactor;
/* adjust azimuth */
Thata = m_ortNew.orAzimuth;
Thata2 = (double)Thata/m_aziFactor;
/* get the length of the diagnal to draw */
m_Z1Angle.x = (int)(ZAngle2*sin(Thata2));
m_Z1Angle.y = (int)(ZAngle2*cos(Thata2));
}
else {
m_Z1Angle.x = 0;
m_Z1Angle.y = 0;
}
if (hDC = BeginPaint(m_hWnd, &psPaint)) {
/* write raw tilt info */
if (m_TiltSupport) {
wsprintf((LPSTR)szOutput,"Tilt: %03i, Thata: %04u\0",
ZAngle,Thata);
}
else {
strcpy(szOutput,"Tilt not supported.");
}
DrawText(hDC,szOutput,strlen(szOutput),&m_rcInfoTilt,DT_LEFT);
/* write current cursor name */
gpWTInfoA(WTI_CURSORS + m_curNew, CSR_NAME, szOutput);
DrawText(hDC,szOutput,strlen(szOutput),&m_rcInfoName,DT_LEFT);
/* write tablet name */
gpWTInfoA(WTI_DEVICES, DVC_NAME, szOutput);
DrawText(hDC,szOutput,strlen(szOutput),&m_rcInfoGen,DT_LEFT);
/* draw circle based on tablet pressure */
Ellipse(hDC, m_ptNew.x - m_prsNew, m_ptNew.y - m_prsNew,
m_ptNew.x + m_prsNew, m_ptNew.y + m_prsNew);
/* draw a line based on tablet tilt */
MoveTo(hDC, m_ptNew.x, m_ptNew.y);
LineTo(hDC, m_ptNew.x + m_Z1Angle.x, m_ptNew.y - m_Z1Angle.y);
/* draw CROSS based on tablet position */
MoveTo(hDC, m_ptNew.x - 20, m_ptNew.y );
LineTo(hDC, m_ptNew.x + 20, m_ptNew.y );
MoveTo(hDC, m_ptNew.x , m_ptNew.y - 20);
LineTo(hDC, m_ptNew.x , m_ptNew.y + 20);
EndPaint(m_hWnd, &psPaint);
}
break;
}
case WT_PACKET: /* A packet is waiting from WINTAB */
if (gpWTPacket((HCTX)lParam, wParam, &pkt)) {
/* old co-ordinates used for comparisons */
POINT ptOld = m_ptNew;
UINT prsOld = m_prsNew;
UINT curOld = m_curNew;
ORIENTATION ortOld = m_ortNew;
/* save new co-ordinates */
m_ptNew.x = (UINT)pkt.pkX;
m_ptNew.y = (UINT)pkt.pkY;
m_curNew = pkt.pkCursor;
m_prsNew = pkt.pkNormalPressure;
m_ortNew = pkt.pkOrientation;
/* If the visual changes update the main graphic */
if (m_ptNew.x != ptOld.x ||
m_ptNew.y != ptOld.y ||
m_prsNew != prsOld ||
m_ortNew.orAzimuth != ortOld.orAzimuth ||
m_ortNew.orAltitude != ortOld.orAltitude ||
m_ortNew.orTwist != ortOld.orTwist) {
InvalidateRect(m_hWnd, &m_rcDraw, TRUE);
}
/* if the displayed data changes update the text */
if (m_ortNew.orAzimuth != ortOld.orAzimuth ||
m_ortNew.orAltitude != ortOld.orAltitude ||
m_ortNew.orTwist != ortOld.orTwist) {
InvalidateRect(m_hWnd, &m_rcInfoTilt, TRUE);
}
/* if the cursor changes update the cursor name */
if (m_curNew != curOld) {
InvalidateRect(m_hWnd, &m_rcInfoName, TRUE);
}
}
break;
//----終了処理----
case WM_DESTROY:
UnloadWintab( );
PostQuitMessage(0);
break;
//----デフォルトの処理----
default :
return DefWindowProc(m_hWnd,msg,wParam,lParam);
}
return 0L;
}
