bool SnapPivot_Mode::DrawBounds(ViewExp *vpt, bool hitTest, bool hightLight, Point3& hitPoint)
{
if (mPreviewMesh == nullptr) return false;
GraphicsWindow *gw = vpt->getGW();
gw->setTransform(mBoundingTM);
if (hitTest)
{
gw->setRndLimits(gw->getRndLimits() | GW_PICK);
gw->clearHitCode();
}
Box3 bounds;
bounds.Init();
bool useSel = false;
for (int i = 0; i < mPreviewMesh->numv; i++)
{
if (mPreviewMesh->v[i].GetFlag(MN_DEAD)) continue;
if (mPreviewMesh->v[i].GetFlag(MN_SEL))
{
useSel = true;
break;
}
}
Matrix3 tm;
Matrix3 boundsTMInverse;
boundsTMInverse = Inverse(mBoundingTM);
tm = mMeshTM * boundsTMInverse;
for (int i = 0; i < mPreviewMesh->numv; i++)
{
if (mPreviewMesh->v[i].GetFlag(MN_DEAD)) continue;
if (useSel)
{
if (mPreviewMesh->v[i].GetFlag(MN_SEL))
bounds += mPreviewMesh->v[i].p*tm;
}
else
bounds += mPreviewMesh->v[i].p*tm;
}
Point3 p[9];
gw->setColor(ColorType::LINE_COLOR, mBoundsColor);
gw->startMarkers();
p[0] = bounds[0];
p[1] = bounds[1];
p[2] = bounds[2];
p[3] = bounds[3];
bool hit = DrawBoxFace(gw, p, hitTest, hitPoint);
if (hit && hitTest)
return true;
p[0] = bounds[4];
p[1] = bounds[5];
p[2] = bounds[6];
p[3] = bounds[7];
hit = DrawBoxFace(gw, p, hitTest, hitPoint);
if (hit && hitTest)
return true;
p[0] = (bounds[0] + bounds[4])*0.5f;
p[1] = (bounds[1] + bounds[5])*0.5f;
p[2] = (bounds[2] + bounds[6])*0.5f;
p[3] = (bounds[3] + bounds[7])*0.5f;
hit = DrawBoxFace(gw, p, hitTest, hitPoint);
if (hit && hitTest)
return true;
gw->endMarkers();
Point3 edgeColor(mBoundsColor);
edgeColor *= 0.8f;
gw->setColor(ColorType::LINE_COLOR, edgeColor);
gw->startSegments();
p[0] = bounds[0];
p[1] = bounds[1];
p[2] = bounds[3];
p[3] = bounds[2];
p[4] = bounds[0];
for (int i = 0; i < 4; i++)
gw->segment(&p[i], 1);
p[0] = bounds[4];
p[1] = bounds[5];
p[2] = bounds[7];
p[3] = bounds[6];
p[4] = bounds[4];
for (int i = 0; i < 4; i++)
gw->segment(&p[i], 1);
p[0] = bounds[0];
p[1] = bounds[4];
gw->segment(&p[0], 1);
p[0] = bounds[1];
p[1] = bounds[5];
gw->segment(&p[0], 1);
p[0] = bounds[2];
p[1] = bounds[6];
gw->segment(&p[0], 1);
p[0] = bounds[3];
p[1] = bounds[7];
gw->segment(&p[0], 1);
gw->endSegments();
return false;
}
