void SnapPivot_Mode::DrawAxisLock(ViewExp *vpt, int axis, float size, bool hightLight, bool hitTest, float& dist)
{
GraphicsWindow *gw = vpt->getGW();
if (hitTest)
{
gw->setRndLimits(gw->getRndLimits() | GW_PICK);
gw->clearHitCode();
}
Point3 p(0, 0, 0);
p[axis] = size+ size*0.1f;
if (axis == mLockedAxis)
gw->setColor(ColorType::LINE_COLOR, mLockedColor);
else
gw->setColor(ColorType::LINE_COLOR, mLockColor);
gw->startMarkers();
gw->marker(&p, MarkerType::CIRCLE_MRKR);
gw->endMarkers();
dist = -1.0f;
if (hitTest)
{
if (gw->checkHitCode())
{
if (gw->getHitDistance())
dist = gw->getHitDistance();
}
}
}
void SnapPivot_Mode::DrawCenter(ViewExp *vpt, float size, bool hightLight, bool hitTest, float& dist)
{
GraphicsWindow *gw = vpt->getGW();
if (hitTest)
{
gw->setRndLimits(gw->getRndLimits() | GW_PICK);
gw->clearHitCode();
}
Point3 p(0, 0, 0);
gw->setColor(ColorType::LINE_COLOR, mCenterColor);
gw->startMarkers();
gw->marker(&p, MarkerType::BIG_BOX_MRKR);
gw->endMarkers();
dist = -1.0f;
if (hitTest)
{
if (gw->checkHitCode())
{
if (gw->getHitDistance() )
dist = gw->getHitDistance();
}
}
}
//from ViewportDisplayCallback
void SnapPivot_Mode::Display(TimeValue t, ViewExp *vpt, int flags)
{
if (!vpt || !vpt->IsAlive())
{
// why are we here
DbgAssert(!_T("Invalid viewport!"));
return;
}
GraphicsWindow *gw = vpt->getGW();
int savedLimits;
gw->setRndLimits((savedLimits = gw->getRndLimits()) & (~GW_ILLUM) & GW_Z_BUFFER);
gw->setTransform(mMeshTM);
//draw mesh preview hight light
if ((mProc.mPreviewSubLevel >= 1) && (mProc.mPreviewSubLevel <= 3) && (mPreviewMesh!=nullptr))
{
gw->setColor(ColorType::LINE_COLOR, mMeshPreviewColor);
if (mProc.mPreviewSubLevel == 1)
{
Point3 p = mPreviewMesh->v[mProc.mPreviewSubIndex].p;
gw->startMarkers();
gw->marker(&p, MarkerType::CIRCLE_MRKR);
gw->endMarkers();
}
else if (mProc.mPreviewSubLevel == 2)
{
int a = mPreviewMesh->e[mProc.mPreviewSubIndex].v1;
int b = mPreviewMesh->e[mProc.mPreviewSubIndex].v2;
Point3 p[3];
p[0] = mPreviewMesh->v[a].p;
p[1] = mPreviewMesh->v[b].p;
gw->startSegments();
gw->segment(p, 1);
gw->endSegments();
}
else if (mProc.mPreviewSubLevel == 3)
{
MNFace& f = mPreviewMesh->f[mProc.mPreviewSubIndex];
int deg = f.deg;
Point3 p[3];
gw->startSegments();
for (int i = 0; i < deg; i++)
{
int index1 = f.vtx[i];
int index2 = f.vtx[0];
if (i < deg - 1)
index2 = f.vtx[i+1];
p[0] = mPreviewMesh->v[index1].p;
p[1] = mPreviewMesh->v[index2].p;
gw->segment(p, 1);
}
gw->endSegments();
}
}
{
Point3 p[3];
p[0] = mProc.mHitOnSurface;
p[1] = mProc.mHitOnSurface + (mProc.mLastNormal * mSize * 0.1f);
gw->startMarkers();
gw->marker(p, MarkerType::DOT2_MRKR);
gw->endMarkers();
gw->startSegments();
gw->segment(p, 1);
gw->endSegments();
}
Point3 hp;
DrawBounds(vpt, false, false,hp);
gw->setTransform(mSnapTM);
float dist = 0.0f;
//draw the transform handles
DrawAxis(vpt, 0, mSize, false, false, dist);
DrawAxis(vpt, 1, mSize, false, false, dist);
DrawAxis(vpt, 2, mSize, false, false, dist);
//draw the transform planes
//draw the rotate handles
DrawAxisLock(vpt, 0, mSize, false, false, dist);
DrawAxisLock(vpt, 1, mSize, false, false, dist);
DrawAxisLock(vpt, 2, mSize, false, false, dist);
//draw the scale handles
//draw the center hit
DrawCenter(vpt, mSize, false, false, dist);
gw->setRndLimits(savedLimits);
}
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;
}
