// start dragging new corner to be inserted into side, make side and hatching invisible
//
void CPolyLine::StartDraggingToInsertCorner( CDC * pDC, int ic, int x, int y, int crosshair )
{
if( !m_dlist )
ASSERT(0);
int icont = GetContour( ic );
int istart = GetContourStart( icont );
int iend = GetContourEnd( icont );
int post_c;
if( ic == iend )
post_c = istart;
else
post_c = ic + 1;
int xi = corner[ic].x;
int yi = corner[ic].y;
int xf = corner[post_c].x;
int yf = corner[post_c].y;
m_dlist->StartDraggingLineVertex( pDC, x, y, xi, yi, xf, yf,
LAY_SELECTION, LAY_SELECTION, 1, 1, DSS_STRAIGHT, DSS_STRAIGHT,
0, 0, 0, 0, crosshair );
m_dlist->CancelHighLight();
m_dlist->Set_visible( dl_side[ic], 0 );
for( int ih=0; ih<m_nhatch; ih++ )
m_dlist->Set_visible( dl_hatch[ih], 0 );
}
// delete corner and adjust arrays
//
void CPolyLine::DeleteCorner( int ic, BOOL bDraw )
{
Undraw();
int icont = GetContour( ic );
int istart = GetContourStart( icont );
int iend = GetContourEnd( icont );
BOOL bClosed = icont < GetNumContours()-1 || GetClosed();
if( !bClosed )
{
// open contour, must be last contour
corner.RemoveAt( ic );
if( ic != istart )
side_style.RemoveAt( ic-1 );
m_ncorners--;
}
else
{
// closed contour
corner.RemoveAt( ic );
side_style.RemoveAt( ic );
if( ic == iend )
corner[ic-1].end_contour = TRUE;
m_ncorners--;
}
if( bClosed && GetContourSize(icont) < 3 )
{
// delete the entire contour
RemoveContour( icont );
}
if( bDraw )
Draw();
}
// delete corner and adjust arrays
//
void CPolyLine::DeleteCorner( int ic )
{
UnHatch();
int icont = GetContour( ic );
int iend = GetContourEnd( icont );
bool closed = icont < GetContoursCount() - 1 || GetClosed();
if( !closed )
{
// open contour, must be last contour
m_CornersList.DeleteCorner( ic );
}
else
{
// closed contour
m_CornersList.DeleteCorner( ic );
if( ic == iend )
m_CornersList[ic - 1].end_contour = true;
}
if( closed && GetContourSize( icont ) < 3 )
{
// delete the entire contour
RemoveContour( icont );
}
}
/*
* return true if the corner aCornerIdx is on a hole inside the main outline
* and false if it is on the main outline
*/
bool CPolyLine::IsCutoutContour( int aCornerIdx )
{
int ncont = GetContour( aCornerIdx );
if( ncont == 0 ) // the first contour is the main outline, not an hole
return false;
return true;
}
// start dragging corner to new position, make adjacent sides and hatching invisible
//
void CPolyLine::StartDraggingToMoveCorner( CDC * pDC, int ic, int x, int y, int crosshair )
{
if( !m_dlist )
ASSERT(0);
// see if corner is the first or last corner of an open contour
int icont = GetContour( ic );
int istart = GetContourStart( icont );
int iend = GetContourEnd( icont );
if( !GetClosed()
&& icont == GetNumContours() - 1
&& (ic == istart || ic == iend) )
{
// yes
int style, xi, yi, iside;
if( ic == istart )
{
// first corner
iside = ic;
xi = GetX( ic+1 );
yi = GetY( ic+1 );
style = GetSideStyle( iside );
// reverse arc since we are drawing from corner 1 to 0
if( style == CPolyLine::ARC_CW )
style = CPolyLine::ARC_CCW;
else if( style == CPolyLine::ARC_CCW )
style = CPolyLine::ARC_CW;
}
else
{
// last corner
iside = ic - 1;
xi = GetX( ic-1 );
yi = GetY( ic-1);
style = GetSideStyle( iside );
}
m_dlist->StartDraggingArc( pDC, style, GetX(ic), GetY(ic), xi, yi, LAY_SELECTION, 1, crosshair );
m_dlist->CancelHighLight();
m_dlist->Set_visible( dl_side[iside], 0 );
for( int ih=0; ih<m_nhatch; ih++ )
m_dlist->Set_visible( dl_hatch[ih], 0 );
}
else
{
// no
// get indexes for preceding and following corners
int pre_c, post_c;
int poly_side_style1, poly_side_style2;
int style1, style2;
if( ic == istart )
{
pre_c = iend;
post_c = istart+1;
poly_side_style1 = side_style[iend];
poly_side_style2 = side_style[istart];
}
else if( ic == iend )
{
// last side
pre_c = ic-1;
post_c = istart;
poly_side_style1 = side_style[ic-1];
poly_side_style2 = side_style[ic];
}
else
{
pre_c = ic-1;
post_c = ic+1;
poly_side_style1 = side_style[ic-1];
poly_side_style2 = side_style[ic];
}
if( poly_side_style1 == STRAIGHT )
style1 = DSS_STRAIGHT;
else if( poly_side_style1 == ARC_CW )
style1 = DSS_ARC_CW;
else if( poly_side_style1 == ARC_CCW )
style1 = DSS_ARC_CCW;
if( poly_side_style2 == STRAIGHT )
style2 = DSS_STRAIGHT;
else if( poly_side_style2 == ARC_CW )
style2 = DSS_ARC_CW;
else if( poly_side_style2 == ARC_CCW )
style2 = DSS_ARC_CCW;
int xi = corner[pre_c].x;
int yi = corner[pre_c].y;
int xf = corner[post_c].x;
int yf = corner[post_c].y;
m_dlist->StartDraggingLineVertex( pDC, x, y, xi, yi, xf, yf,
LAY_SELECTION, LAY_SELECTION, 1, 1, style1, style2,
0, 0, 0, 0, crosshair );
m_dlist->CancelHighLight();
m_dlist->Set_visible( dl_side[pre_c], 0 );
m_dlist->Set_visible( dl_side[ic], 0 );
for( int ih=0; ih<m_nhatch; ih++ )
m_dlist->Set_visible( dl_hatch[ih], 0 );
}
}
