void
Leaves::Draw(BView* view, int32 frame)
{
float scale = fLeafSize / kLeafWidth / (kMaximumLeafSize * 2);
scale *= view->Bounds().Width();
scale += scale * drand48() * fSizeVariation / 100.;
BAffineTransform transform;
transform.TranslateBy(-kLeafWidth / 2, -kLeafHeight / 2);
// draw the leaf centered on the point
transform.RotateBy(drand48() * 2. * M_PI);
if ((rand() & 64) == 0) transform.ScaleBy(-1., 1.);
// flip half of the time
transform.ScaleBy(scale);
transform.TranslateBy(_RandomPoint(view->Bounds()));
BPoint center = transform.Apply(BPoint(kLeafWidth / 2, kLeafHeight / 2));
BPoint gradientOffset = BPoint(60 * scale, 80 * scale);
BGradientLinear gradient(center - gradientOffset, center + gradientOffset);
int color = (rand() / 7) % kColorCount;
gradient.AddColor(kColors[color][0], 0.f);
gradient.AddColor(kColors[color][1], 255.f);
BShape leafShape;
leafShape.MoveTo(transform.Apply(kLeafBegin));
for (int i = 0; i < kLeafCurveCount; ++i) {
BPoint control[3];
for (int j = 0; j < 3; ++j)
control[j] = transform.Apply(kLeafCurves[i][j]);
leafShape.BezierTo(control);
}
leafShape.Close();
view->PushState();
view->SetDrawingMode(B_OP_ALPHA);
view->SetHighColor(0, 0, 0, 50);
for (int i = 2; i >= 0; --i) {
view->SetOrigin(i * 0.1, i * 0.3);
view->SetPenSize(i * 2);
view->StrokeShape(&leafShape);
}
view->PopState();
view->FillShape(&leafShape, gradient);
}
void
LeafView::Draw(BRect updateRect)
{
float scale = Bounds().Width() / kLeafWidth;
BAffineTransform transform;
transform.ScaleBy(scale);
// BGradientRadial gradient(BPoint(kLeafWidth * 0.75, kLeafHeight * 1.5),
// kLeafWidth * 2);
BGradientLinear gradient(B_ORIGIN,
transform.Apply(BPoint(kLeafWidth, kLeafHeight)));
rgb_color lightBlue = make_color(6, 169, 255);
rgb_color darkBlue = make_color(0, 50, 126);
gradient.AddColor(darkBlue, 0.0);
gradient.AddColor(lightBlue, 255.0);
// build leaf shape
BShape leafShape;
leafShape.MoveTo(transform.Apply(kLeafBegin));
for (int i = 0; i < kNumLeafCurves; ++i) {
BPoint controlPoints[3];
for (int j = 0; j < 3; ++j)
controlPoints[j] = transform.Apply(kLeafCurves[i][j]);
leafShape.BezierTo(controlPoints);
}
leafShape.Close();
PushState();
SetDrawingMode(B_OP_ALPHA);
SetHighColor(0, 0, 0, 50);
for (int i = 2; i >= 0; --i) {
SetOrigin(i * 0.1, i * 0.3);
SetPenSize(i * 2);
StrokeShape(&leafShape);
}
PopState();
FillShape(&leafShape, gradient);
}