bool
KeyHole(Canvas &canvas, PixelScalar x, PixelScalar y, UPixelScalar radius,
Angle start, Angle end, UPixelScalar inner_radius)
{
// dont draw if out of view
PixelRect rc, bounds;
SetRect(&rc, 0, 0, canvas.get_width(), canvas.get_height());
SetRect(&bounds, x - radius, y - radius, x + radius, y + radius);
if (!IntersectRect(&bounds, &bounds, &rc))
return false;
const int istart = NATIVE_TO_INT(start.Native());
const int iend = NATIVE_TO_INT(end.Native());
int npoly = 0;
RasterPoint pt[66*2];
segment_poly(pt, x, y, radius, istart, iend, npoly);
segment_poly(pt, x, y, inner_radius, iend, istart, npoly);
assert(npoly <= 66*2);
if (npoly)
canvas.DrawPolygon(pt, npoly);
return true;
}
void
RoundRect(Canvas &canvas, int left, int top,
int right, int bottom, unsigned radius)
{
unsigned npoly = 0;
RasterPoint pt[66*4];
segment_poly(pt, left + radius, top + radius, radius,
INT_ANGLE_RANGE * 3 / 4,
INT_ANGLE_RANGE - 1,
npoly);
segment_poly(pt, right - radius, top + radius, radius,
0, INT_ANGLE_RANGE / 4 - 1,
npoly);
segment_poly(pt, right - radius, bottom - radius, radius,
INT_ANGLE_RANGE / 4,
INT_ANGLE_RANGE / 2 - 1,
npoly);
segment_poly(pt, left + radius, bottom - radius, radius,
INT_ANGLE_RANGE / 2,
INT_ANGLE_RANGE * 3 / 4 - 1,
npoly);
assert(npoly < ARRAY_SIZE(pt));
if (npoly)
canvas.DrawPolygon(pt, npoly);
}
bool
Annulus(Canvas &canvas, long x, long y, int radius,
Angle start, Angle end, int inner_radius)
{
// dont draw if out of view
PixelRect rc, bounds;
SetRect(&rc, 0, 0, canvas.get_width(), canvas.get_height());
SetRect(&bounds, x - radius, y - radius, x + radius, y + radius);
if (!IntersectRect(&bounds, &bounds, &rc))
return false;
const int istart = NATIVE_TO_INT(start.value_native());
const int iend = NATIVE_TO_INT(end.value_native());
int npoly = 0;
RasterPoint pt[66*2];
segment_poly(pt, x, y, radius, istart, iend, npoly);
segment_poly(pt, x, y, inner_radius, iend, istart, npoly, false);
assert(npoly <= 66*2);
if (npoly) {
canvas.polygon(pt, npoly);
}
return true;
}
void
RoundRect(Canvas &canvas, int left, int top,
int right, int bottom, unsigned radius)
{
unsigned npoly = 0;
BulkPixelPoint pt[66*4];
segment_poly(pt, PixelPoint(left + radius, top + radius), radius,
INT_ANGLE_RANGE * 3 / 4,
INT_ANGLE_RANGE - 1,
npoly);
segment_poly(pt, PixelPoint(right - radius, top + radius), radius,
0, INT_ANGLE_RANGE / 4 - 1,
npoly);
segment_poly(pt, PixelPoint(right - radius, bottom - radius), radius,
INT_ANGLE_RANGE / 4,
INT_ANGLE_RANGE / 2 - 1,
npoly);
segment_poly(pt, PixelPoint(left + radius, bottom - radius), radius,
INT_ANGLE_RANGE / 2,
INT_ANGLE_RANGE * 3 / 4 - 1,
npoly);
assert(npoly <= ARRAY_SIZE(pt));
if (npoly)
canvas.DrawTriangleFan(pt, npoly);
}
bool
Segment(Canvas &canvas, PixelScalar x, PixelScalar y, UPixelScalar radius,
Angle start, Angle end, bool horizon)
{
// dont draw if out of view
PixelRect rc, bounds;
SetRect(&rc, 0, 0, canvas.get_width(), canvas.get_height());
SetRect(&bounds, x - radius, y - radius, x + radius, y + radius);
if (!IntersectRect(&bounds, &bounds, &rc))
return false;
const int istart = NATIVE_TO_INT(start.Native());
const int iend = NATIVE_TO_INT(end.Native());
int npoly = 0;
RasterPoint pt[66];
// add center point
if (!horizon) {
pt[0].x = x;
pt[0].y = y;
npoly = 1;
}
segment_poly(pt, x, y, radius, istart, iend, npoly);
assert(npoly <= 66);
if (npoly)
canvas.DrawTriangleFan(pt, npoly);
return true;
}
void
RoundRect(Canvas &canvas, PixelScalar left, PixelScalar top,
PixelScalar right, PixelScalar bottom, UPixelScalar radius)
{
int npoly = 0;
RasterPoint pt[66*4];
segment_poly(pt, left + radius, top + radius, radius, 3072, 4095, npoly);
segment_poly(pt, right - radius, top + radius, radius, 0, 1023, npoly);
segment_poly(pt, right - radius, bottom - radius, radius, 1024, 2047, npoly);
segment_poly(pt, left + radius, bottom - radius, radius, 2048, 3071, npoly);
assert(npoly <= 66*4);
if (npoly)
canvas.DrawPolygon(pt, npoly);
}
bool
Segment(Canvas &canvas, int x, int y, unsigned radius,
Angle start, Angle end, bool horizon)
{
// dont draw if out of view
if (!IsCircleVisible(canvas, x, y, radius))
return false;
const int istart = NATIVE_TO_INT(start.Native());
const int iend = NATIVE_TO_INT(end.Native());
unsigned npoly = 0;
RasterPoint pt[67];
// add center point
if (!horizon) {
pt[0].x = x;
pt[0].y = y;
npoly = 1;
}
segment_poly(pt, x, y, radius, istart, iend, npoly);
assert(npoly <= ARRAY_SIZE(pt));
if (npoly)
canvas.DrawTriangleFan(pt, npoly);
return true;
}
void
RoundRect(Canvas &canvas, int left, int top,
int right, int bottom, unsigned radius)
{
unsigned npoly = 0;
RasterPoint pt[66*4];
segment_poly(pt, left + radius, top + radius, radius, 3072, 4095, npoly);
segment_poly(pt, right - radius, top + radius, radius, 0, 1023, npoly);
segment_poly(pt, right - radius, bottom - radius, radius, 1024, 2047, npoly);
segment_poly(pt, left + radius, bottom - radius, radius, 2048, 3071, npoly);
assert(npoly < ARRAY_SIZE(pt));
if (npoly)
canvas.DrawPolygon(pt, npoly);
}
bool
KeyHole(Canvas &canvas, int x, int y, unsigned radius,
Angle start, Angle end, unsigned inner_radius)
{
// dont draw if out of view
if (!IsCircleVisible(canvas, x, y, radius))
return false;
const int istart = NATIVE_TO_INT(start.Native());
const int iend = NATIVE_TO_INT(end.Native());
unsigned npoly = 0;
RasterPoint pt[66*2];
segment_poly(pt, x, y, radius, istart, iend, npoly);
segment_poly(pt, x, y, inner_radius, iend, istart, npoly);
assert(npoly < ARRAY_SIZE(pt));
if (npoly)
canvas.DrawPolygon(pt, npoly);
return true;
}
bool
Annulus(Canvas &canvas, PixelPoint center, unsigned radius,
Angle start, Angle end, unsigned inner_radius)
{
// dont draw if out of view
if (!IsCircleVisible(canvas, center, radius))
return false;
const int istart = NATIVE_TO_INT(start.Native());
const int iend = NATIVE_TO_INT(end.Native());
unsigned npoly = 0;
BulkPixelPoint pt[66*2];
segment_poly(pt, center, radius, istart, iend, npoly);
segment_poly(pt, center, inner_radius, iend, istart, npoly, false);
assert(npoly <= ARRAY_SIZE(pt));
if (npoly)
canvas.DrawPolygon(pt, npoly);
return true;
}
