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Harmonize wxGraphicsPathData::AddArcToPoint() behaviour across all ports

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AddArcToPoint() on macOS port is implemented with native API (CGPathAddArcToPoint) so its behaviour should be considered as a reference for generic implementation used in another ports.

Closes #18086.
This commit is contained in:
Artur Wieczorek
2018-06-27 22:38:14 +02:00
parent c716b59783
commit 60669e9b50
3 changed files with 8 additions and 7 deletions
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4
src/common/graphcmn.cpp
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@@ -479,7 +479,6 @@ void wxGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2,
alpha == 0 || alpha == 180 || r == 0 )
{
AddLineToPoint(p1.m_x, p1.m_y);
AddLineToPoint(p2.m_x, p2.m_y);
return;
}
@@ -489,8 +488,6 @@ void wxGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2,
alpha = wxDegToRad(alpha);
wxDouble distT = r / sin(alpha) * (1.0 + cos(alpha)); // = r / tan(a/2) = r / sin(a/2) * cos(a/2)
wxDouble distC = r / sin(alpha / 2.0);
wxASSERT_MSG( distT <= v1Length && distT <= v2Length,
wxS("Radius is too big to fit the arc to given points") );
// Calculate tangential points
v1.Normalize();
v2.Normalize();
@@ -513,7 +510,6 @@ void wxGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2,
AddLineToPoint(t1.m_x, t1.m_y);
AddArc(c.m_x, c.m_y, r, wxDegToRad(a1), wxDegToRad(a2), drawClockwiseArc);
AddLineToPoint(p2.m_x, p2.m_y);
}
//-----------------------------------------------------------------------------