AuroraMiddleware/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Optimize adding rounded rectangle to wxGraphicsPath

Browse Source 
In AddRoundedRectangle() we know in advance (angle = 90 deg) or can easily determine (center point) parameters of all arcs at the vertices of the rectangle so instead of using AddArcToPoint() function which is generic and hence computationally expensive we can use AddArc() function which implementation is simpler and execution should be faster.
This commit is contained in:
Artur Wieczorek 2016-06-05 21:53:31 +02:00
parent edabb01032
commit 81d9208424
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/common/graphcmn.cpp
View File

@ -434,11 +434,11 @@ void wxGraphicsPathData::AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w
AddRectangle(x,y,w,h);
else
{
MoveToPoint( x + w, y + h / 2);
AddArcToPoint(x + w, y + h, x + w / 2, y + h, radius);
AddArcToPoint(x, y + h, x, y + h / 2, radius);
AddArcToPoint(x, y , x + w / 2, y, radius);
AddArcToPoint(x + w, y, x + w, y + h / 2, radius);
MoveToPoint(x+w, y+h/2);
AddArc(x+w-radius, y+h-radius, radius, 0.0, M_PI/2.0, true);
AddArc(x+radius, y+h-radius, radius, M_PI/2.0, M_PI, true);
AddArc(x+radius, y+radius, radius, M_PI, 3.0*M_PI/2.0, true);
AddArc(x+w-radius, y+radius, radius, 3.0*M_PI/2.0, 2.0*M_PI, true);
CloseSubpath();
}
}