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Fix StrokeArc

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2123 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
shadow303 2002-11-29 23:16:03 +00:00
parent af9ba303e4
commit f7052c0ec3
1 changed files with 47 additions and 47 deletions
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94
src/servers/app/proto7/ScreenDriver.cpp
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@ -772,7 +772,7 @@ void ScreenDriver::StrokeArc(BRect r, float angle, float span, LayerData *d, int
float yc = (r.top+r.bottom)/2;
float rx = r.Width()/2;
float ry = r.Height()/2;
int Rx2 = ROUND(rx*ry);
int Rx2 = ROUND(rx*rx);
int Ry2 = ROUND(ry*ry);
int twoRx2 = 2*Rx2;
int twoRy2 = 2*Ry2;
@ -798,23 +798,23 @@ void ScreenDriver::StrokeArc(BRect r, float angle, float span, LayerData *d, int
{
startQuad = (int)(angle/90)%4+1;
endQuad = (int)((angle+span)/90)%4+1;
startx = ROUND(.5*r.Width()*cos(angle*M_PI/180));
endx = ROUND(.5*r.Width()*cos((angle+span)*M_PI/180));
startx = ROUND(.5*r.Width()*fabs(cos(angle*M_PI/180)));
endx = ROUND(.5*r.Width()*fabs(cos((angle+span)*M_PI/180)));
}
else
{
endQuad = (int)(angle/90)%4+1;
startQuad = (int)((angle+span)/90)%4+1;
endx = ROUND(.5*r.Width()*cos(angle*M_PI/180));
startx = ROUND(.5*r.Width()*cos((angle+span)*M_PI/180));
endx = ROUND(.5*r.Width()*fabs(cos(angle*M_PI/180)));
startx = ROUND(.5*r.Width()*fabs(cos((angle+span)*M_PI/180)));
}
if ( startQuad != endQuad )
{
useQuad1 = (endQuad > 1) && (startQuad > endQuad);
useQuad2 = (endQuad > 2) && ((startQuad < 2) || (startQuad > endQuad));
useQuad3 = (endQuad > 3) && ((startQuad < 3) || (startQuad > endQuad));
useQuad4 = (endQuad > 4) && ((startQuad < 4) || (startQuad > endQuad));
useQuad2 = ((startQuad == 1) && (endQuad > 2)) || ((startQuad > endQuad) && (endQuad > 2));
useQuad3 = ((startQuad < 3) && (endQuad == 4)) || ((startQuad < 3) && (endQuad < startQuad));
useQuad4 = (startQuad < 4) && (startQuad > endQuad);
}
else
{
@ -836,21 +836,21 @@ void ScreenDriver::StrokeArc(BRect r, float angle, float span, LayerData *d, int
}
if ( useQuad1 ||
(!shortspan && ((startQuad == 1) && (x <= startx)) || ((endQuad == 1) && (x >= endx))) ||
(!shortspan && (((startQuad == 1) && (x <= startx)) || ((endQuad == 1) && (x >= endx)))) ||
(shortspan && (startQuad == 1) && (x <= startx) && (x >= endx)) )
SetThickPixel(xc+x,yc+y,thick,d->highcolor);
if ( useQuad2 ||
(!shortspan && ((startQuad == 2) && (-x <= startx)) || ((endQuad == 2) && (-x >= endx))) ||
(shortspan && (startQuad == 2) && (-x <= startx) && (-x >= endx)) )
SetThickPixel(xc-x,yc+y,thick,d->highcolor);
if ( useQuad3 ||
(!shortspan && ((startQuad == 3) && (-x >= startx)) || ((endQuad == 3) && (-x <= endx))) ||
(shortspan && (startQuad == 3) && (-x >= startx) && (-x <= endx)) )
SetThickPixel(xc-x,yc-y,thick,d->highcolor);
if ( useQuad4 ||
(!shortspan && ((startQuad == 4) && (x >= startx)) || ((endQuad == 4) && (x <= endx))) ||
(shortspan && (startQuad == 4) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc+x,yc-y,thick,d->highcolor);
if ( useQuad2 ||
(!shortspan && (((startQuad == 2) && (x >= startx)) || ((endQuad == 2) && (x <= endx)))) ||
(shortspan && (startQuad == 2) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc-x,yc-y,thick,d->highcolor);
if ( useQuad3 ||
(!shortspan && (((startQuad == 3) && (x <= startx)) || ((endQuad == 3) && (x >= endx)))) ||
(shortspan && (startQuad == 3) && (x <= startx) && (x >= endx)) )
SetThickPixel(xc-x,yc+y,thick,d->highcolor);
if ( useQuad4 ||
(!shortspan && (((startQuad == 4) && (x >= startx)) || ((endQuad == 4) && (x <= endx)))) ||
(shortspan && (startQuad == 4) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc+x,yc+y,thick,d->highcolor);
p = ROUND (Ry2 - (Rx2 * ry) + (.25 * Rx2));
while (px < py)
@ -867,21 +867,21 @@ void ScreenDriver::StrokeArc(BRect r, float angle, float span, LayerData *d, int
}
if ( useQuad1 ||
(!shortspan && ((startQuad == 1) && (x <= startx)) || ((endQuad == 1) && (x >= endx))) ||
(!shortspan && (((startQuad == 1) && (x <= startx)) || ((endQuad == 1) && (x >= endx)))) ||
(shortspan && (startQuad == 1) && (x <= startx) && (x >= endx)) )
SetThickPixel(xc+x,yc+y,thick,d->highcolor);
if ( useQuad2 ||
(!shortspan && ((startQuad == 2) && (-x <= startx)) || ((endQuad == 2) && (-x >= endx))) ||
(shortspan && (startQuad == 2) && (-x <= startx) && (-x >= endx)) )
SetThickPixel(xc-x,yc+y,thick,d->highcolor);
if ( useQuad3 ||
(!shortspan && ((startQuad == 3) && (-x >= startx)) || ((endQuad == 3) && (-x <= endx))) ||
(shortspan && (startQuad == 3) && (-x >= startx) && (-x <= endx)) )
SetThickPixel(xc-x,yc-y,thick,d->highcolor);
if ( useQuad4 ||
(!shortspan && ((startQuad == 4) && (x >= startx)) || ((endQuad == 4) && (x <= endx))) ||
(shortspan && (startQuad == 4) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc+x,yc-y,thick,d->highcolor);
if ( useQuad2 ||
(!shortspan && (((startQuad == 2) && (x >= startx)) || ((endQuad == 2) && (x <= endx)))) ||
(shortspan && (startQuad == 2) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc-x,yc-y,thick,d->highcolor);
if ( useQuad3 ||
(!shortspan && (((startQuad == 3) && (x <= startx)) || ((endQuad == 3) && (x >= endx)))) ||
(shortspan && (startQuad == 3) && (x <= startx) && (x >= endx)) )
SetThickPixel(xc-x,yc+y,thick,d->highcolor);
if ( useQuad4 ||
(!shortspan && (((startQuad == 4) && (x >= startx)) || ((endQuad == 4) && (x <= endx)))) ||
(shortspan && (startQuad == 4) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc+x,yc+y,thick,d->highcolor);
}
p = ROUND(Ry2*(x+.5)*(x+.5) + Rx2*(y-1)*(y-1) - Rx2*Ry2);
@ -899,21 +899,21 @@ void ScreenDriver::StrokeArc(BRect r, float angle, float span, LayerData *d, int
}
if ( useQuad1 ||
(!shortspan && ((startQuad == 1) && (x <= startx)) || ((endQuad == 1) && (x >= endx))) ||
(!shortspan && (((startQuad == 1) && (x <= startx)) || ((endQuad == 1) && (x >= endx)))) ||
(shortspan && (startQuad == 1) && (x <= startx) && (x >= endx)) )
SetThickPixel(xc+x,yc+y,thick,d->highcolor);
if ( useQuad2 ||
(!shortspan && ((startQuad == 2) && (-x <= startx)) || ((endQuad == 2) && (-x >= endx))) ||
(shortspan && (startQuad == 2) && (-x <= startx) && (-x >= endx)) )
SetThickPixel(xc-x,yc+y,thick,d->highcolor);
if ( useQuad3 ||
(!shortspan && ((startQuad == 3) && (-x >= startx)) || ((endQuad == 3) && (-x <= endx))) ||
(shortspan && (startQuad == 3) && (-x >= startx) && (-x <= endx)) )
SetThickPixel(xc-x,yc-y,thick,d->highcolor);
if ( useQuad4 ||
(!shortspan && ((startQuad == 4) && (x >= startx)) || ((endQuad == 4) && (x <= endx))) ||
(shortspan && (startQuad == 4) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc+x,yc-y,thick,d->highcolor);
if ( useQuad2 ||
(!shortspan && (((startQuad == 2) && (x >= startx)) || ((endQuad == 2) && (x <= endx)))) ||
(shortspan && (startQuad == 2) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc-x,yc-y,thick,d->highcolor);
if ( useQuad3 ||
(!shortspan && (((startQuad == 3) && (x <= startx)) || ((endQuad == 3) && (x >= endx)))) ||
(shortspan && (startQuad == 3) && (x <= startx) && (x >= endx)) )
SetThickPixel(xc-x,yc+y,thick,d->highcolor);
if ( useQuad4 ||
(!shortspan && (((startQuad == 4) && (x >= startx)) || ((endQuad == 4) && (x <= endx)))) ||
(shortspan && (startQuad == 4) && (x >= startx) && (x <= endx)) )
SetThickPixel(xc+x,yc+y,thick,d->highcolor);
}
}