void CVecPolygon::DrawRotatedDragImage(CDC* pDC, double dAng, LPPOINT lpCenter, double dAngLast, LPPOINT lpCenterLast)
{
CRect rect = m_t_Rect;
LPPOINT lpPointsNew = NULL;
LPPOINT lpPointsLast = NULL;
if(lpCenter!=NULL)
{
lpPointsNew = new POINT[m_uiNumOfPoints];
memcpy(lpPointsNew, m_t_lpIntPoints, m_uiNumOfPoints*sizeof(POINT));
RotatePoints(lpPointsNew, m_uiNumOfPoints, dAng, lpCenter);
}
if(lpCenterLast!=NULL)
{
lpPointsLast = new POINT[m_uiNumOfPoints];
memcpy(lpPointsLast, m_t_lpIntPoints, m_uiNumOfPoints*sizeof(POINT));
RotatePoints(lpPointsLast, m_uiNumOfPoints, dAngLast, lpCenterLast);
}
CPolygonTracker::DrawDragPolygon(pDC, lpPointsNew, 1, lpPointsLast, 1, m_uiNumOfPoints);
if(lpPointsNew != NULL)
delete []lpPointsNew;
if(lpPointsLast != NULL)
delete []lpPointsLast;
}
void CCompass::Draw(QPainter *p_pPainter, QPoint *p_pCenter)
{
QBrush BkBrush, Brush[2], TextBrush;
QPen Pen;
QRect DrawRect;
QColor Color;
QPoint Points[3], TickPoints[24];
QFont Font;
short i, Offset = 5, FontPixelSize = 15, TextWidth;
char tstr[128];
double dCompassPosition;
for(i = 0; i < 24; i += 2) {
TickPoints[i].setX(p_pCenter->x() + 0);
TickPoints[i].setY(p_pCenter->y() - m_nRadius);
TickPoints[i + 1].setX(p_pCenter->x() + 0);
TickPoints[i + 1].setY(p_pCenter->y() - m_nRadius + 2 * Offset + ((!(i % 3)) ? Offset : 0)); }
DrawRect.setCoords(p_pCenter->x() - m_nRadius, p_pCenter->y() - m_nRadius, p_pCenter->x() + m_nRadius, p_pCenter->y() + m_nRadius);
BkBrush = QBrush(QColor(255, 0, 0, 128));
TextBrush = QBrush(QColor(255, 255, 0, 255));
Brush[0] = QBrush(QColor(255, 0, 0, 255));
Brush[1] = QBrush(QColor(255, 255, 255, 255));
Pen = QPen(Qt::black);
Pen.setWidth(1);
Pen.setStyle(Qt::NoPen);
p_pPainter->setPen(Pen);
BkBrush.setStyle(Qt::SolidPattern);
p_pPainter->setBrush(BkBrush);
p_pPainter->drawEllipse(DrawRect.center(), m_nRadius - Offset, m_nRadius - Offset);
BkBrush.setStyle(Qt::NoBrush);
p_pPainter->setBrush(BkBrush);
Pen.setStyle(Qt::SolidLine);
p_pPainter->setPen(Pen);
p_pPainter->drawEllipse(DrawRect.center(), m_nRadius, m_nRadius);
for(i = 0; i < 12; i ++)
RotatePoints(&(TickPoints[i * 2]), 2, p_pCenter, 30 * i);
p_pPainter->drawLines(TickPoints, 12);
Pen.setStyle(Qt::NoPen);
p_pPainter->setPen(Pen);
p_pPainter->setBrush(Brush[0]);
Points[0].setX(p_pCenter->x() + Offset);
Points[0].setY(p_pCenter->y());
Points[1].setX(p_pCenter->x() - Offset);
Points[1].setY(p_pCenter->y());
Points[2].setX(p_pCenter->x());
Points[2].setY(p_pCenter->y() - m_nRadius + Offset);
dCompassPosition = 360.0 - m_dHeading_deg;
if(dCompassPosition < 0) dCompassPosition += 360;
RotatePoints(Points, 3, p_pCenter, dCompassPosition);
p_pPainter->drawConvexPolygon(Points, 3);
p_pPainter->setBrush(Brush[1]);
Points[0].setX(p_pCenter->x() + Offset);
Points[0].setY(p_pCenter->y());
Points[1].setX(p_pCenter->x() - Offset);
Points[1].setY(p_pCenter->y());
Points[2].setX(p_pCenter->x());
Points[2].setY(p_pCenter->y() + m_nRadius - Offset);
RotatePoints(Points, 3, p_pCenter, dCompassPosition);
p_pPainter->drawConvexPolygon(Points, 3);
Pen.setColor(Qt::black);
Pen.setStyle(Qt::SolidLine);
p_pPainter->setPen(Pen);
p_pPainter->setBrush(TextBrush);
Font.setPixelSize(FontPixelSize);
p_pPainter->setFont(Font);
sprintf_s(tstr, sizeof(tstr), "%.0lf", m_dHeading_deg);
QFontMetrics FontMetrics(Font);
TextWidth = FontMetrics.width(tstr) + 4;
DrawRect.setCoords(p_pCenter->x() - TextWidth / 2, p_pCenter->y() - FontPixelSize / 2, p_pCenter->x() + TextWidth / 2, p_pCenter->y() + FontPixelSize / 2 + 2);
p_pPainter->drawRect(DrawRect);
p_pPainter->drawText(DrawRect, Qt::AlignCenter, QString::fromLocal8Bit(tstr));
}
BOOL CPicTracker::Track(CWnd* pWnd, CPoint point, BOOL bRotate, CSnapper* pSnapper,
CWnd* pWndClipTo)
{
BOOL bResizeOrMove = HitTest(point)==hitOnPoint ? TRUE : FALSE;
// don't handle if capture already set
if (::GetCapture() != NULL)
return FALSE;
m_rectOrigianl = m_rect;
AfxLockTempMaps(); // protect maps while looping
ASSERT(!m_bFinalErase);
// set capture to the window which received this message
pWnd->SetCapture();
ASSERT(pWnd == CWnd::GetCapture());
pWnd->UpdateWindow();
if (pWndClipTo != NULL)
pWndClipTo->UpdateWindow();
CPoint LastPoint(point);
// get DC for drawing
CDC* pDrawDC;
if (pWndClipTo != NULL)
{
// clip to arbitrary window by using adjusted Window DC
pDrawDC = pWndClipTo->GetDCEx(NULL, DCX_CACHE);
}
else
{
// otherwise, just use normal DC
pDrawDC = pWnd->GetDC();
}
ASSERT_VALID(pDrawDC);
CDRectangle rectOld;
BOOL bMoved = FALSE;
// get messages until capture lost or cancelled/accepted
for (;;)
{
MSG msg;
VERIFY(::GetMessage(&msg, NULL, 0, 0));
if (CWnd::GetCapture() != pWnd)
break;
if(msg.message == WM_MOUSEMOVE)
DispatchMessage(&msg);
switch (msg.message)
{
// handle movement/accept messages
case WM_LBUTTONUP:
case WM_MOUSEMOVE:
OnCheange:
{
rectOld = m_rect;
m_rect = m_rectOrigianl;
// handle resize cases (and part of move)
CPoint p;
::GetCursorPos(&p);
pWnd->ScreenToClient(&p);
p -= LastPoint;
//LastPoint = point;
// handle move case
if(bRotate)
{
LPDPOINT lpPoints = m_rect.GetPoints();
CPoint pp = p+LastPoint;
double dAngle = GetPointAng(&pp, &LastPoint);
double dist = sqrt((double)(p.x*p.x + p.y*p.y));
if(dist<30)
{
dAngle /= 30;
dAngle *= dist;
}
if(::GetKeyState(VK_SHIFT) & 0x8000) //if the shift is pressed then snap to the close 45 degrees
{
dAngle = ((int)((dAngle/(RAD90D/2))+0.499))*(RAD90D/2);
}
RotatePoints((LPCDPOINT)lpPoints, m_rect.GetNumOfPoints(), dAngle, NULL);
}
else if (!bResizeOrMove)
{
if((::GetKeyState(VK_SHIFT) & 0x8000)!=0)
{
if(ABS(p.x)>ABS(p.y))
p.y=0;
else
p.x=0;
}
LPDPOINT lpPoints = m_rect.GetPoints();
for(int i=0; i<m_rect.GetNumOfPoints();i++)
{
lpPoints[i].x += p.x;
lpPoints[i].y += p.y;
}
if(pSnapper!=NULL)
pSnapper->FixSnapTo((LPCDPOINT)lpPoints,m_rect.GetNumOfPoints());
}
else
{
double dAngle1 = m_rect.GetAngle1();
double dAngle2 = m_rect.GetAngle2()-RAD90D;
CDPoint center(0,0);
CDPoint dp(p);
RotatePoints(&dp, 1, -dAngle1, ¢er);
if(CheckRetainProportions() && (m_dWidthDivHeight!=0)) //if the shift is pressed then remain proporions
{
dp.y=dp.x/m_dWidthDivHeight;
}
LPDPOINT lpPoints = m_rect.GetPoints();
center = GetPointsCenter((LPCDPOINT)lpPoints, m_rect.GetNumOfPoints());
RotatePoints((LPCDPOINT)lpPoints, m_rect.GetNumOfPoints(), -dAngle1, ¢er);
int i;
for(i=0; i<m_rect.GetNumOfPoints(); i++)
{
CDPoint ppp = lpPoints[i];
ppp-=center;
if(ppp.x>0)
ppp.x += dp.x;
else
ppp.x -= dp.x;
ppp+=center;
lpPoints[i] = ppp;
}
RotatePoints((LPCDPOINT)lpPoints, m_rect.GetNumOfPoints(), dAngle1-dAngle2, ¢er);
for(i=0; i<m_rect.GetNumOfPoints(); i++)
{
CDPoint ppp = lpPoints[i];
ppp-=center;
if(ppp.y>0)
ppp.y += dp.y;
else
ppp.y -= dp.y;
ppp+=center;
lpPoints[i] = ppp;
}
RotatePoints((LPCDPOINT)lpPoints, m_rect.GetNumOfPoints(), dAngle2, ¢er);
if(pSnapper!=NULL)
pSnapper->FixSnapTo((LPCDPOINT)lpPoints,m_rect.GetNumOfPoints());
}
// only redraw and callback if the rect actually changed!
m_bFinalErase = (msg.message == WM_LBUTTONUP);
if (!rectOld.IsEqual(m_rect) || m_bFinalErase)
{
if (bMoved)
{
m_bErase = TRUE;
DrawTracker(&rectOld, pWndClipTo, pDrawDC, pWnd);
}
if (msg.message != WM_LBUTTONUP)
bMoved = TRUE;
}
if (m_bFinalErase)
goto ExitLoop;
if (!rectOld.IsEqual(m_rect))
{
m_bErase = FALSE;
DrawTracker(&m_rect, pWndClipTo, pDrawDC, pWnd);
}
}
break;
case WM_KEYUP:
if (msg.wParam == VK_SHIFT)
goto OnCheange;
break;
// handle cancel messages
case WM_KEYDOWN:
if (msg.wParam == VK_SHIFT)
goto OnCheange;
if (msg.wParam != VK_ESCAPE)
break;
case WM_RBUTTONDOWN:
if (bMoved)
{
m_bErase = m_bFinalErase = TRUE;
DrawTracker(&m_rect, pWndClipTo, pDrawDC, pWnd);
}
m_rect = m_rectOrigianl;
goto ExitLoop;
// just dispatch rest of the messages
default:
DispatchMessage(&msg);
break;
}
}
ExitLoop:
if (pWndClipTo != NULL)
pWndClipTo->ReleaseDC(pDrawDC);
else
pWnd->ReleaseDC(pDrawDC);
ReleaseCapture();
AfxUnlockTempMaps(FALSE);
// restore rect in case bMoved is still FALSE
if (!bMoved)
m_rect = m_rectOrigianl;
m_bFinalErase = FALSE;
m_bErase = FALSE;
// return TRUE only if rect has changed
return !m_rectOrigianl.IsEqual(m_rect);
}