void wxGISDisplay::SetDeviceFrame(wxRect &rc)
{
m_oDeviceFrameRect = rc;
if(m_oDeviceFrameRect.GetWidth() % 2 != 0)
m_oDeviceFrameRect.SetWidth(m_oDeviceFrameRect.GetWidth() + 1);
if(m_oDeviceFrameRect.GetHeight() % 2 != 0)
m_oDeviceFrameRect.SetHeight(m_oDeviceFrameRect.GetHeight() + 1);
m_dFrameRatio = double(m_oDeviceFrameRect.GetWidth()) / m_oDeviceFrameRect.GetHeight();
m_CurrentBounds = m_RealBounds;
SetEnvelopeRatio(m_CurrentBounds, m_dFrameRatio);
m_dRotatedBoundsCenterX = m_CurrentBounds.MinX + (m_CurrentBounds.MaxX - m_CurrentBounds.MinX) / 2;
m_dRotatedBoundsCenterY = m_CurrentBounds.MinY + (m_CurrentBounds.MaxY - m_CurrentBounds.MinY) / 2;
m_CurrentBoundsRotated = m_CurrentBounds;
if(!IsDoubleEquil(m_dAngleRad, 0.0))
{
RotateEnvelope(m_CurrentBoundsRotated, m_dAngleRad, m_dRotatedBoundsCenterX, m_dRotatedBoundsCenterY);
SetEnvelopeRatio(m_CurrentBoundsRotated, m_dFrameRatio);//test
}
m_CurrentBoundsX8 = m_CurrentBoundsRotated;
IncreaseEnvelope(m_CurrentBoundsX8, 8);
cairo_destroy (m_cr_tmp);
cairo_surface_destroy (m_surface_tmp);
m_surface_tmp = cairo_image_surface_create (CAIRO_FORMAT_RGB24, m_oDeviceFrameRect.GetWidth(), m_oDeviceFrameRect.GetHeight());
m_cr_tmp = cairo_create (m_surface_tmp);
//compute current transform matrix
InitTransformMatrix();
}
bool wxGISDisplay::CanDraw(OGREnvelope &Env)
{
if(!IsDoubleEquil(m_dAngleRad, 0.0))
{
RotateEnvelope(Env, -m_dAngleRad, m_dRotatedBoundsCenterX, m_dRotatedBoundsCenterY);
}
return Env.Contains(m_CurrentBoundsRotated) || m_CurrentBoundsRotated.Contains(Env) || Env.Intersects(m_CurrentBoundsRotated);
}
OGREnvelope wxGISMapView::GetFullExtent(void)
{
OGREnvelope OutputEnv;
if(!IsDoubleEquil(m_dCurrentAngle, 0.0))
{
OutputEnv = m_FullExtent;
double dCenterX = m_FullExtent.MinX + (m_FullExtent.MaxX - m_FullExtent.MinX) / 2;
double dCenterY = m_FullExtent.MinY + (m_FullExtent.MaxY - m_FullExtent.MinY) / 2;
RotateEnvelope(OutputEnv, m_dCurrentAngle, dCenterX, dCenterY);
IncreaseEnvelope(OutputEnv, 0.1);
}
else
OutputEnv = wxGISMap::GetFullExtent();
return OutputEnv;
}
bool wxGISDisplay::CheckDrawAsPoint(const OGREnvelope &Envelope, double dfLineWidth, bool bIsRing, double dOffsetX, double dOffsetY, bool bCheckEnvelope)
{
OGREnvelope TestEnv;
TestEnv = Envelope;
if(!IsDoubleEquil(m_dAngleRad, 0.0))
{
RotateEnvelope(TestEnv, -m_dAngleRad, m_dRotatedBoundsCenterX, m_dRotatedBoundsCenterY);
}
if(bCheckEnvelope && !m_CurrentBoundsRotated.Intersects(TestEnv))
return true;
double EnvWidth = Envelope.MaxX - Envelope.MinX;
double EnvHeight = Envelope.MaxY - Envelope.MinY;
World2DCDist(&EnvWidth, &EnvHeight);
double dfR = (fabs(EnvWidth) + fabs(EnvHeight)) * .5;
if (dfR <= MINPOLYDRAWAREA)
{
if(bIsRing)
{
SetLineWidth( dfLineWidth + dfLineWidth );
}
else
{
SetLineWidth( dfLineWidth );
}
if (dfR >= MINPOLYAREA)
{
wxCriticalSectionLocker locker(m_CritSect);
cairo_move_to(m_saLayerCaches[m_nCurrentLayer].pCairoContext, Envelope.MinX + dOffsetX, Envelope.MinY + dOffsetY);
cairo_line_to(m_saLayerCaches[m_nCurrentLayer].pCairoContext, Envelope.MaxX + dOffsetX, Envelope.MaxY + dOffsetY);
}
else
{
DrawPointFast(Envelope.MinX, Envelope.MinY, dOffsetX, dOffsetY);
}
SetLineCap(CAIRO_LINE_CAP_ROUND);
return true;
}
return false;
}
void wxGISDisplay::SetRotate(double dAngleRad)
{
m_dAngleRad = dAngleRad;
//for rotate panning & zooming
m_CurrentBoundsRotated = m_CurrentBounds;
m_dRotatedBoundsCenterX = m_CurrentBoundsRotated.MinX + (m_CurrentBoundsRotated.MaxX - m_CurrentBoundsRotated.MinX) / 2;
m_dRotatedBoundsCenterY = m_CurrentBoundsRotated.MinY + (m_CurrentBoundsRotated.MaxY - m_CurrentBoundsRotated.MinY) / 2;
if(!IsDoubleEquil(m_dAngleRad, 0.0))
{
RotateEnvelope(m_CurrentBoundsRotated, m_dAngleRad, m_dRotatedBoundsCenterX, m_dRotatedBoundsCenterY);
SetEnvelopeRatio(m_CurrentBoundsRotated, m_dFrameRatio);//test
}
m_CurrentBoundsX8 = m_CurrentBoundsRotated;
IncreaseEnvelope(m_CurrentBoundsX8, 8);
//compute current transform matrix
InitTransformMatrix();
SetAllCachesDerty(true);
}
void wxGISDisplay::SetBounds(const OGREnvelope& Bounds)
{
//update bounds to frame ratio
m_RealBounds = Bounds;
m_CurrentBounds = m_RealBounds;
SetEnvelopeRatio(m_CurrentBounds, m_dFrameRatio);
m_dRotatedBoundsCenterX = m_CurrentBounds.MinX + (m_CurrentBounds.MaxX - m_CurrentBounds.MinX) / 2;
m_dRotatedBoundsCenterY = m_CurrentBounds.MinY + (m_CurrentBounds.MaxY - m_CurrentBounds.MinY) / 2;
m_CurrentBoundsRotated = m_CurrentBounds;
if(!IsDoubleEquil(m_dAngleRad, 0.0))
{
RotateEnvelope(m_CurrentBoundsRotated, m_dAngleRad, m_dRotatedBoundsCenterX, m_dRotatedBoundsCenterY);
SetEnvelopeRatio(m_CurrentBoundsRotated, m_dFrameRatio);//test
}
m_CurrentBoundsX8 = m_CurrentBoundsRotated;
IncreaseEnvelope(m_CurrentBoundsX8, 8);
SetAllCachesDerty(true);
//compute current transform matrix
InitTransformMatrix();
}
bool wxGISDrawingLayer::Draw(wxGISEnumDrawPhase DrawPhase, ITrackCancel* const pTrackCancel)
{
wxCHECK_MSG(m_pDisplay, false, wxT("Display pointer is NULL"));
wxCriticalSectionLocker lock(m_CritSect);
OGREnvelope stDisplayExtentRotated = m_pDisplay->GetBounds(true);
OGREnvelope stFeatureDatasetExtentRotated = m_oLayerExtent;
//rotate featureclass extent
if (!IsDoubleEquil(m_pDisplay->GetRotate(), 0.0))
{
wxRealPoint dfCenter = m_pDisplay->GetBoundsCenter();
RotateEnvelope(stFeatureDatasetExtentRotated, m_pDisplay->GetRotate(), dfCenter.x, dfCenter.y);//dCenterX, dCenterY);
}
//if envelopes don't intersect exit
if (!stDisplayExtentRotated.Intersects(stFeatureDatasetExtentRotated))
return false;
//get intersect envelope to fill vector data
OGREnvelope stDrawBounds = stDisplayExtentRotated;
stDrawBounds.Intersect(stFeatureDatasetExtentRotated);
if (!stDrawBounds.IsInit())
return false;
IProgressor* pProgress = NULL;
if (NULL != pTrackCancel)
{
pProgress = pTrackCancel->GetProgressor();
}
if (NULL != pProgress)
{
pProgress->SetRange(m_aoShapes.size());
}
//draw shapes
for (size_t i = 0; i < m_aoShapes.size(); ++i)
{
if (NULL != pProgress)
{
pProgress->SetValue(i);
}
if (pTrackCancel != NULL && !pTrackCancel->Continue())
return true;
if (m_aoShapes[i] != NULL)
{
m_aoShapes[i]->Draw(m_pDisplay);
}
}
//draw enumGISShapeStateSelected
//draw enumGISShapeStateRotated
//draw enumGISShapeStatePoints
return true;
}
