void wxGISMapView::RotateBy(wxPoint MouseLocation)
{
if(m_nDrawingState == enumGISMapRotating)
{
if(m_pGISDisplay)
{
//compute angle
double dX = m_FrameCenter.x - MouseLocation.x;
double dY = m_FrameCenter.y - MouseLocation.y;
double dAngle = atan2(dY, dX);
dAngle -= m_dOriginAngle;
if(dAngle < 0)
dAngle += 2 * M_PI;
wxClientDC CDC(this);
m_pGISDisplay->RotatingDraw(dAngle, &CDC);
m_dCurrentAngle = DOUBLEPI - m_pGISDisplay->GetRotate() - dAngle;
if(m_dCurrentAngle >= DOUBLEPI)
m_dCurrentAngle -= DOUBLEPI;
if(m_dCurrentAngle < 0)
m_dCurrentAngle += DOUBLEPI;
DrawToolTip(CDC, wxString::Format(_("%.4f degree"), m_dCurrentAngle * DEGPI));
}
}
}
/**
* Zeichenfunktion WindowManager-Klasse.
* Zeichnet Desktop und alle Fenster.
*
* @author OLiver
* @author FloSoft
*/
void WindowManager::Draw(void)
{
// ist ein neuer Desktop eingetragen? Wenn ja, wechseln
if(nextdesktop)
Switch();
// haben wir einen gültigen Desktop?
if(!desktop)
return;
// ja, Msg_PaintBefore aufrufen
desktop->Msg_PaintBefore();
// und Desktop zeichnen
desktop->Draw();
// haben wir Fenster?
if(!windows.empty())
{
for(IgwListIterator it = windows.begin(); it != windows.end(); ++it)
{
// Soll Fenster geschlossen werden?
if((*it)->ShouldBeClosed())
{
// Fenster schliessen
Close(*it);
// und raus (korruption der liste verhindern)
break;
}
// Fenster zeichnen
(*it)->Draw();
// wurde es minimiert?
if(!(*it)->GetMinimized())
{
// nein, Msg_PaintAfter aufrufen
(*it)->Msg_PaintAfter();
}
}
}
DrawToolTip();
// Msg_PaintAfter aufrufen
desktop->Msg_PaintAfter();
}
void wxGISMapView::OnMouseWheel(wxMouseEvent& event)
{
//event.Skip(false);
DestroyDrawThread();
int nDirection = event.GetWheelRotation();
int nDelta = event.GetWheelDelta();
int nFactor = nDirection / nDelta;
m_nDrawingState = enumGISMapWheeling;
m_nFactor += ZOOM_FACTOR * (double)nFactor;
if(m_pGISDisplay)
{
double dZoom = 1;
if(m_nFactor < 0)
dZoom = fabs(1.0 / (m_nFactor - 1));
else if(m_nFactor > 0)
dZoom = 1 + m_nFactor;
wxClientDC CDC(this);
m_pGISDisplay->WheelingDraw(dZoom, &CDC);
//draw scale text
OGREnvelope Env = CreateEnvelopeFromZoomFactor(dZoom);
if(Env.IsInit())
{
double sScale = GetScaleRatio( Env, CDC );
wxString sFormatScale = NumberScale(sScale);
sFormatScale.Prepend(wxT("1 : "));
DrawToolTip(CDC, sFormatScale);
}
}
//if(!m_timer.IsRunning())
m_timer.Start(TM_WHEELING);
}
