solvespace/graphicswin.cpp
Jonathan Westhues 2f115ec950 A monster change to add support for filled paths. This requires us
to assemble Beziers into outer and inner loops, and find those
loops made up of entities with filled styles. The open paths are
maintained in a separate list, and we assemble as many closed paths
as possible even when open paths exist.

This changes many things. The coplanar check is now performed on
the Beziers, not the resulting polygon. The way that the polygon is
used to determine loop directions is also modified.

Also fix the mouse behavior when dragging a point: drop it when the
mouse is released, even if it is released outside the window, but
don't drop it if the pointer is dragged out of and then back into
our window.

Also special-case SSurface::ClosestPointTo() for planes, for speed.

[git-p4: depot-paths = "//depot/solvespace/": change = 2058]
2009-10-28 23:16:28 -08:00

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#include "solvespace.h"
#define mView (&GraphicsWindow::MenuView)
#define mEdit (&GraphicsWindow::MenuEdit)
#define mReq (&GraphicsWindow::MenuRequest)
#define mCon (&Constraint::MenuConstrain)
#define mFile (&SolveSpace::MenuFile)
#define mGrp (&Group::MenuGroup)
#define mAna (&SolveSpace::MenuAnalyze)
#define mHelp (&SolveSpace::MenuHelp)
#define S 0x100
#define C 0x200
#define F(k) (0xf0+(k))
const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
{ 0, "&File", 0, NULL },
{ 1, "&New\tCtrl+N", MNU_NEW, 'N'|C, mFile },
{ 1, "&Open...\tCtrl+O", MNU_OPEN, 'O'|C, mFile },
{10, "Open &Recent", MNU_OPEN_RECENT, 0, mFile },
{ 1, "&Save\tCtrl+S", MNU_SAVE, 'S'|C, mFile },
{ 1, "Save &As...", MNU_SAVE_AS, 0, mFile },
{ 1, NULL, 0, 0, NULL },
{ 1, "Export &Image...", MNU_EXPORT_PNG, 0, mFile },
{ 1, "Export 2d &View...", MNU_EXPORT_VIEW, 0, mFile },
{ 1, "Export 2d &Section...", MNU_EXPORT_SECTION, 0, mFile },
{ 1, "Export 3d &Wireframe...", MNU_EXPORT_WIREFRAME, 0, mFile },
{ 1, "Export Triangle &Mesh...", MNU_EXPORT_MESH, 0, mFile },
{ 1, "Export &Surfaces...", MNU_EXPORT_SURFACES,0, mFile },
{ 1, NULL, 0, 0, NULL },
{ 1, "E&xit", MNU_EXIT, 0, mFile },
{ 0, "&Edit", 0, NULL },
{ 1, "&Undo\tCtrl+Z", MNU_UNDO, 'Z'|C, mEdit },
{ 1, "&Redo\tCtrl+Y", MNU_REDO, 'Y'|C, mEdit },
{ 1, "Re&generate All\tSpace", MNU_REGEN_ALL, ' ', mEdit },
{ 1, NULL, 0, NULL },
{ 1, "Snap Selection to &Grid\t.", MNU_SNAP_TO_GRID, '.', mEdit },
{ 1, "Rotate Imported &90<39>\t9", MNU_ROTATE_90, '9', mEdit },
{ 1, "&Delete\tDel", MNU_DELETE, 127, mEdit },
{ 1, NULL, 0, NULL },
{ 1, "&Unselect All\tEsc", MNU_UNSELECT_ALL, 27, mEdit },
{ 0, "&View", 0, NULL },
{ 1, "Zoom &In\t+", MNU_ZOOM_IN, '+', mView },
{ 1, "Zoom &Out\t-", MNU_ZOOM_OUT, '-', mView },
{ 1, "Zoom To &Fit\tF", MNU_ZOOM_TO_FIT, 'F', mView },
{ 1, NULL, 0, NULL },
{ 1, "Show Snap &Grid\t>", MNU_SHOW_GRID, '.'|S, mView },
{ 1, "Force &Parallel Projection\t`", MNU_PARALLEL_PROJ, '`', mView },
{ 1, NULL, 0, NULL },
{ 1, "Nearest &Ortho View\tF2", MNU_NEAREST_ORTHO, F(2), mView },
{ 1, "Nearest &Isometric View\tF3", MNU_NEAREST_ISO, F(3), mView },
{ 1, "&Center View At Point\tF4", MNU_CENTER_VIEW, F(4), mView },
{ 1, NULL, 0, NULL },
{ 1, "Show Text &Window\tTab", MNU_SHOW_TEXT_WND, '\t', mView },
{ 1, "Show &Toolbar", MNU_SHOW_TOOLBAR, 0, mView },
{ 1, NULL, 0, NULL },
{ 1, "Dimensions in &Inches", MNU_UNITS_INCHES, 0, mView },
{ 1, "Dimensions in &Millimeters", MNU_UNITS_MM, 0, mView },
{ 0, "&New Group", 0, 0, NULL },
{ 1, "Sketch In &3d\tShift+3", MNU_GROUP_3D, '3'|S, mGrp },
{ 1, "Sketch In New &Workplane\tShift+W", MNU_GROUP_WRKPL, 'W'|S, mGrp },
{ 1, NULL, 0, NULL },
{ 1, "Step &Translating\tShift+T", MNU_GROUP_TRANS, 'T'|S, mGrp },
{ 1, "Step &Rotating\tShift+R", MNU_GROUP_ROT, 'R'|S, mGrp },
{ 1, NULL, 0, 0, NULL },
{ 1, "E&xtrude\tShift+X", MNU_GROUP_EXTRUDE, 'X'|S, mGrp },
{ 1, "&Lathe\tShift+L", MNU_GROUP_LATHE, 'L'|S, mGrp },
//{ 1, "&Sweep\tShift+S", MNU_GROUP_SWEEP, 'S'|S, mGrp },
//{ 1, "&Helical Sweep\tShift+H", MNU_GROUP_HELICAL, 'H'|S, mGrp },
{ 1, NULL, 0, 0, NULL },
{ 1, "Import / Assemble...\tShift+I", MNU_GROUP_IMPORT, 'I'|S, mGrp },
{11, "Import Recent", MNU_GROUP_RECENT, 0, mGrp },
{ 0, "&Sketch", 0, NULL },
{ 1, "In &Workplane\tW", MNU_SEL_WORKPLANE, 'W', mReq },
{ 1, "Anywhere In &3d\t3", MNU_FREE_IN_3D, '3', mReq },
{ 1, NULL, 0, NULL },
{ 1, "Datum &Point\tP", MNU_DATUM_POINT, 'P', mReq },
{ 1, "&Workplane", MNU_WORKPLANE, 0, mReq },
{ 1, NULL, 0, NULL },
{ 1, "Line &Segment\tS", MNU_LINE_SEGMENT, 'S', mReq },
{ 1, "&Rectangle\tR", MNU_RECTANGLE, 'R', mReq },
{ 1, "&Circle\tC", MNU_CIRCLE, 'C', mReq },
{ 1, "&Arc of a Circle\tA", MNU_ARC, 'A', mReq },
{ 1, "&Bezier Cubic Segment\tB", MNU_CUBIC, 'B', mReq },
{ 1, NULL, 0, NULL },
{ 1, "&Text in TrueType Font\tT", MNU_TTF_TEXT, 'T', mReq },
{ 1, NULL, 0, NULL },
{ 1, "To&ggle Construction\tG", MNU_CONSTRUCTION, 'G', mReq },
{ 1, "Split Curves at &Intersection\tI", MNU_SPLIT_CURVES, 'I', mReq },
{ 0, "&Constrain", 0, NULL },
{ 1, "&Distance / Diameter\tD", MNU_DISTANCE_DIA, 'D', mCon },
{ 1, "A&ngle\tN", MNU_ANGLE, 'N', mCon },
{ 1, "Other S&upplementary Angle\tU", MNU_OTHER_ANGLE, 'U', mCon },
{ 1, "Toggle R&eference Dim\tE", MNU_REFERENCE, 'E', mCon },
{ 1, NULL, 0, NULL },
{ 1, "&Horizontal\tH", MNU_HORIZONTAL, 'H', mCon },
{ 1, "&Vertical\tV", MNU_VERTICAL, 'V', mCon },
{ 1, NULL, 0, NULL },
{ 1, "&On Point / Curve / Plane\tO", MNU_ON_ENTITY, 'O', mCon },
{ 1, "E&qual Length / Radius / Angle\tQ", MNU_EQUAL, 'Q', mCon },
{ 1, "Length Ra&tio\tZ", MNU_RATIO, 'Z', mCon },
{ 1, "At &Midpoint\tM", MNU_AT_MIDPOINT, 'M', mCon },
{ 1, "S&ymmetric\tY", MNU_SYMMETRIC, 'Y', mCon },
{ 1, "Para&llel / Tangent\tL", MNU_PARALLEL, 'L', mCon },
{ 1, "&Perpendicular\t[", MNU_PERPENDICULAR, '[', mCon },
{ 1, "Same Orient&ation\tX", MNU_ORIENTED_SAME, 'X', mCon },
{ 1, NULL, 0, NULL },
{ 1, "Comment\t;", MNU_COMMENT, ';', mCon },
{ 0, "&Analyze", 0, NULL },
{ 1, "Measure &Volume\tCtrl+Shift+V", MNU_VOLUME, 'V'|S|C,mAna },
{ 1, "Show &Interfering Parts\tCtrl+Shift+I", MNU_INTERFERENCE, 'I'|S|C,mAna },
{ 1, "Show &Naked Edges\tCtrl+Shift+N", MNU_NAKED_EDGES, 'N'|S|C,mAna },
{ 1, NULL, 0, NULL },
{ 1, "Show Degrees of &Freedom\tCtrl+Shift+F", MNU_SHOW_DOF, 'F'|S|C,mAna },
{ 1, NULL, 0, NULL },
{ 1, "&Trace Point\tCtrl+Shift+T", MNU_TRACE_PT, 'T'|S|C,mAna },
{ 1, "&Stop Tracing...\tCtrl+Shift+S", MNU_STOP_TRACING, 'S'|S|C,mAna },
{ 1, "Step &Dimension...\tCtrl+Shift+D", MNU_STEP_DIM, 'D'|S|C,mAna },
{ 0, "&Help", 0, 0, NULL },
{ 1, "&Load License...", MNU_LICENSE, 0, mHelp },
{ 1, NULL, 0, 0, NULL },
{ 1, "&Website / Manual", MNU_WEBSITE, 0, mHelp },
{ 1, "&About", MNU_ABOUT, 0, mHelp },
{ -1 },
};
void GraphicsWindow::Init(void) {
memset(this, 0, sizeof(*this));
scale = 5;
offset = Vector::From(0, 0, 0);
projRight = Vector::From(1, 0, 0);
projUp = Vector::From(0, 1, 0);
// Make sure those are valid; could get a mouse move without a mouse
// down if someone depresses the button, then drags into our window.
orig.projRight = projRight;
orig.projUp = projUp;
// And with the last group active
activeGroup = SK.group.elem[SK.group.n-1].h;
SK.GetGroup(activeGroup)->Activate();
showWorkplanes = false;
showNormals = true;
showPoints = true;
showConstraints = true;
showHdnLines = false;
showShaded = true;
showEdges = true;
showMesh = false;
showTextWindow = true;
ShowTextWindow(showTextWindow);
showSnapGrid = false;
context.active = false;
// Do this last, so that all the menus get updated correctly.
EnsureValidActives();
}
void GraphicsWindow::AnimateOntoWorkplane(void) {
if(!LockedInWorkplane()) return;
Entity *w = SK.GetEntity(ActiveWorkplane());
Quaternion quatf = w->Normal()->NormalGetNum();
Vector offsetf = (SK.GetEntity(w->point[0])->PointGetNum()).ScaledBy(-1);
AnimateOnto(quatf, offsetf);
}
void GraphicsWindow::AnimateOnto(Quaternion quatf, Vector offsetf) {
// Get our initial orientation and translation.
Quaternion quat0 = Quaternion::From(projRight, projUp);
Vector offset0 = offset;
// Make sure we take the shorter of the two possible paths.
double mp = (quatf.Minus(quat0)).Magnitude();
double mm = (quatf.Plus(quat0)).Magnitude();
if(mp > mm) {
quatf = quatf.ScaledBy(-1);
mp = mm;
}
double mo = (offset0.Minus(offsetf)).Magnitude()*scale;
// Animate transition, unless it's a tiny move.
SDWORD dt = (mp < 0.01 && mo < 10) ? (-20) :
(SDWORD)(100 + 1000*mp + 0.4*mo);
// Don't ever animate for longer than 2000 ms; we can get absurdly
// long translations (as measured in pixels) if the user zooms out, moves,
// and then zooms in again.
if(dt > 2000) dt = 2000;
SDWORD tn, t0 = GetMilliseconds();
double s = 0;
Quaternion dq = quatf.Times(quat0.Inverse());
do {
offset = (offset0.ScaledBy(1 - s)).Plus(offsetf.ScaledBy(s));
Quaternion quat = (dq.ToThe(s)).Times(quat0);
quat = quat.WithMagnitude(1);
projRight = quat.RotationU();
projUp = quat.RotationV();
PaintGraphics();
tn = GetMilliseconds();
s = (tn - t0)/((double)dt);
} while((tn - t0) < dt);
projRight = quatf.RotationU();
projUp = quatf.RotationV();
offset = offsetf;
InvalidateGraphics();
}
void GraphicsWindow::HandlePointForZoomToFit(Vector p,
Point2d *pmax, Point2d *pmin, double *wmin, bool div)
{
double w;
Vector pp = ProjectPoint4(p, &w);
// If div is true, then we calculate a perspective projection of the point.
// If not, then we do a parallel projection regardless of the current
// scale factor.
if(div) {
pp = pp.ScaledBy(1.0/w);
}
pmax->x = max(pmax->x, pp.x);
pmax->y = max(pmax->y, pp.y);
pmin->x = min(pmin->x, pp.x);
pmin->y = min(pmin->y, pp.y);
*wmin = min(*wmin, w);
}
void GraphicsWindow::LoopOverPoints(Point2d *pmax, Point2d *pmin, double *wmin,
bool div, bool includingInvisibles)
{
HandlePointForZoomToFit(Vector::From(0, 0, 0), pmax, pmin, wmin, div);
int i, j;
for(i = 0; i < SK.entity.n; i++) {
Entity *e = &(SK.entity.elem[i]);
if(!(e->IsVisible() || includingInvisibles)) continue;
if(e->IsPoint()) {
HandlePointForZoomToFit(e->PointGetNum(), pmax, pmin, wmin, div);
} else if(e->type == Entity::CIRCLE) {
// Lots of entities can extend outside the bbox of their points,
// but circles are particularly bad. We want to get things halfway
// reasonable without the mesh, because a zoom to fit is used to
// set the zoom level to set the chord tol.
double r = e->CircleGetRadiusNum();
Vector c = SK.GetEntity(e->point[0])->PointGetNum();
Quaternion q = SK.GetEntity(e->normal)->NormalGetNum();
for(j = 0; j < 4; j++) {
Vector p = (j == 0) ? (c.Plus(q.RotationU().ScaledBy( r))) :
(j == 1) ? (c.Plus(q.RotationU().ScaledBy(-r))) :
(j == 2) ? (c.Plus(q.RotationV().ScaledBy( r))) :
(c.Plus(q.RotationV().ScaledBy(-r)));
HandlePointForZoomToFit(p, pmax, pmin, wmin, div);
}
}
}
Group *g = SK.GetGroup(activeGroup);
g->GenerateDisplayItems();
for(i = 0; i < g->displayMesh.l.n; i++) {
STriangle *tr = &(g->displayMesh.l.elem[i]);
HandlePointForZoomToFit(tr->a, pmax, pmin, wmin, div);
HandlePointForZoomToFit(tr->b, pmax, pmin, wmin, div);
HandlePointForZoomToFit(tr->c, pmax, pmin, wmin, div);
}
for(i = 0; i < g->polyLoops.l.n; i++) {
SContour *sc = &(g->polyLoops.l.elem[i]);
for(j = 0; j < sc->l.n; j++) {
HandlePointForZoomToFit(sc->l.elem[j].p, pmax, pmin, wmin, div);
}
}
}
void GraphicsWindow::ZoomToFit(bool includingInvisibles) {
// On the first run, ignore perspective.
Point2d pmax = { -1e12, -1e12 }, pmin = { 1e12, 1e12 };
double wmin = 1;
LoopOverPoints(&pmax, &pmin, &wmin, false, includingInvisibles);
double xm = (pmax.x + pmin.x)/2, ym = (pmax.y + pmin.y)/2;
double dx = pmax.x - pmin.x, dy = pmax.y - pmin.y;
offset = offset.Plus(projRight.ScaledBy(-xm)).Plus(
projUp. ScaledBy(-ym));
// And based on this, we calculate the scale and offset
if(dx == 0 && dy == 0) {
scale = 5;
} else {
double scalex = 1e12, scaley = 1e12;
if(dx != 0) scalex = 0.9*width /dx;
if(dy != 0) scaley = 0.9*height/dy;
scale = min(scalex, scaley);
scale = min(300, scale);
scale = max(0.003, scale);
}
// Then do another run, considering the perspective.
pmax.x = -1e12; pmax.y = -1e12;
pmin.x = 1e12; pmin.y = 1e12;
wmin = 1;
LoopOverPoints(&pmax, &pmin, &wmin, true, includingInvisibles);
// Adjust the scale so that no points are behind the camera
if(wmin < 0.1) {
double k = SS.CameraTangent();
// w = 1+k*scale*z
double zmin = (wmin - 1)/(k*scale);
// 0.1 = 1 + k*scale*zmin
// (0.1 - 1)/(k*zmin) = scale
scale = min(scale, (0.1 - 1)/(k*zmin));
}
}
void GraphicsWindow::MenuView(int id) {
switch(id) {
case MNU_ZOOM_IN:
SS.GW.scale *= 1.2;
break;
case MNU_ZOOM_OUT:
SS.GW.scale /= 1.2;
break;
case MNU_ZOOM_TO_FIT:
SS.GW.ZoomToFit(false);
break;
case MNU_SHOW_GRID:
SS.GW.showSnapGrid = !SS.GW.showSnapGrid;
if(SS.GW.showSnapGrid && !SS.GW.LockedInWorkplane()) {
Message("No workplane is active, so the grid will not "
"appear.");
}
SS.GW.EnsureValidActives();
InvalidateGraphics();
break;
case MNU_PARALLEL_PROJ:
SS.forceParallelProj = !SS.forceParallelProj;
if(SS.cameraTangent < 1e-6) {
Error("The perspective factor is set to zero, so the view will "
"always be a parallel projection.\r\n\r\n"
"For a perspective projection, modify the camera tangent "
"in the configuration screen. A value around 0.3 is "
"typical.");
}
SS.GW.EnsureValidActives();
InvalidateGraphics();
break;
case MNU_NEAREST_ORTHO:
case MNU_NEAREST_ISO: {
static const Vector ortho[3] = {
Vector::From(1, 0, 0),
Vector::From(0, 1, 0),
Vector::From(0, 0, 1)
};
double sqrt2 = sqrt(2.0), sqrt6 = sqrt(6.0);
Quaternion quat0 = Quaternion::From(SS.GW.projRight, SS.GW.projUp);
Quaternion quatf = quat0;
double dmin = 1e10;
// There are 24 possible views; 3*2*2*2
int i, j, negi, negj;
for(i = 0; i < 3; i++) {
for(j = 0; j < 3; j++) {
if(i == j) continue;
for(negi = 0; negi < 2; negi++) {
for(negj = 0; negj < 2; negj++) {
Vector ou = ortho[i], ov = ortho[j];
if(negi) ou = ou.ScaledBy(-1);
if(negj) ov = ov.ScaledBy(-1);
Vector on = ou.Cross(ov);
Vector u, v;
if(id == MNU_NEAREST_ORTHO) {
u = ou;
v = ov;
} else {
u =
ou.ScaledBy(1/sqrt2).Plus(
on.ScaledBy(-1/sqrt2));
v =
ou.ScaledBy(-1/sqrt6).Plus(
ov.ScaledBy(2/sqrt6).Plus(
on.ScaledBy(-1/sqrt6)));
}
Quaternion quatt = Quaternion::From(u, v);
double d = min(
(quatt.Minus(quat0)).Magnitude(),
(quatt.Plus(quat0)).Magnitude());
if(d < dmin) {
dmin = d;
quatf = quatt;
}
}
}
}
}
SS.GW.AnimateOnto(quatf, SS.GW.offset);
break;
}
case MNU_CENTER_VIEW:
SS.GW.GroupSelection();
if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) {
Quaternion quat0;
// Offset is the selected point, quaternion is same as before
Vector pt = SK.GetEntity(SS.GW.gs.point[0])->PointGetNum();
quat0 = Quaternion::From(SS.GW.projRight, SS.GW.projUp);
SS.GW.AnimateOnto(quat0, pt.ScaledBy(-1));
SS.GW.ClearSelection();
} else {
Error("Select a point; this point will become the center "
"of the view on screen.");
}
break;
case MNU_SHOW_TEXT_WND:
SS.GW.showTextWindow = !SS.GW.showTextWindow;
SS.GW.EnsureValidActives();
break;
case MNU_SHOW_TOOLBAR:
SS.showToolbar = !SS.showToolbar;
SS.GW.EnsureValidActives();
InvalidateGraphics();
break;
case MNU_UNITS_MM:
SS.viewUnits = SolveSpace::UNIT_MM;
SS.later.showTW = true;
SS.GW.EnsureValidActives();
break;
case MNU_UNITS_INCHES:
SS.viewUnits = SolveSpace::UNIT_INCHES;
SS.later.showTW = true;
SS.GW.EnsureValidActives();
break;
default: oops();
}
InvalidateGraphics();
}
void GraphicsWindow::EnsureValidActives(void) {
bool change = false;
// The active group must exist, and not be the references.
Group *g = SK.group.FindByIdNoOops(activeGroup);
if((!g) || (g->h.v == Group::HGROUP_REFERENCES.v)) {
int i;
for(i = 0; i < SK.group.n; i++) {
if(SK.group.elem[i].h.v != Group::HGROUP_REFERENCES.v) {
break;
}
}
if(i >= SK.group.n) {
// This can happen if the user deletes all the groups in the
// sketch. It's difficult to prevent that, because the last
// group might have been deleted automatically, because it failed
// a dependency. There needs to be something, so create a plane
// drawing group and activate that. They should never be able
// to delete the references, though.
activeGroup = SS.CreateDefaultDrawingGroup();
} else {
activeGroup = SK.group.elem[i].h;
}
SK.GetGroup(activeGroup)->Activate();
change = true;
}
// The active coordinate system must also exist.
if(LockedInWorkplane()) {
Entity *e = SK.entity.FindByIdNoOops(ActiveWorkplane());
if(e) {
hGroup hgw = e->group;
if(hgw.v != activeGroup.v && SS.GroupsInOrder(activeGroup, hgw)) {
// The active workplane is in a group that comes after the
// active group; so any request or constraint will fail.
SetWorkplaneFreeIn3d();
change = true;
}
} else {
SetWorkplaneFreeIn3d();
change = true;
}
}
// And update the checked state for various menus
bool locked = LockedInWorkplane();
CheckMenuById(MNU_FREE_IN_3D, !locked);
CheckMenuById(MNU_SEL_WORKPLANE, locked);
SS.UndoEnableMenus();
switch(SS.viewUnits) {
case SolveSpace::UNIT_MM:
case SolveSpace::UNIT_INCHES:
break;
default:
SS.viewUnits = SolveSpace::UNIT_MM;
}
CheckMenuById(MNU_UNITS_MM, SS.viewUnits == SolveSpace::UNIT_MM);
CheckMenuById(MNU_UNITS_INCHES, SS.viewUnits == SolveSpace::UNIT_INCHES);
ShowTextWindow(SS.GW.showTextWindow);
CheckMenuById(MNU_SHOW_TEXT_WND, SS.GW.showTextWindow);
CheckMenuById(MNU_SHOW_TOOLBAR, SS.showToolbar);
CheckMenuById(MNU_PARALLEL_PROJ, SS.forceParallelProj);
CheckMenuById(MNU_SHOW_GRID, SS.GW.showSnapGrid);
if(change) SS.later.showTW = true;
}
void GraphicsWindow::SetWorkplaneFreeIn3d(void) {
SK.GetGroup(activeGroup)->activeWorkplane = Entity::FREE_IN_3D;
}
hEntity GraphicsWindow::ActiveWorkplane(void) {
Group *g = SK.group.FindByIdNoOops(activeGroup);
if(g) {
return g->activeWorkplane;
} else {
return Entity::FREE_IN_3D;
}
}
bool GraphicsWindow::LockedInWorkplane(void) {
return (SS.GW.ActiveWorkplane().v != Entity::FREE_IN_3D.v);
}
void GraphicsWindow::ForceTextWindowShown(void) {
if(!showTextWindow) {
showTextWindow = true;
CheckMenuById(MNU_SHOW_TEXT_WND, true);
ShowTextWindow(TRUE);
}
}
void GraphicsWindow::DeleteTaggedRequests(void) {
// Rewrite any point-coincident constraints that were affected by this
// deletion.
Request *r;
for(r = SK.request.First(); r; r = SK.request.NextAfter(r)) {
if(!r->tag) continue;
FixConstraintsForRequestBeingDeleted(r->h);
}
// and then delete the tagged requests.
SK.request.RemoveTagged();
// An edit might be in progress for the just-deleted item. So
// now it's not.
HideGraphicsEditControl();
HideTextEditControl();
// And clear out the selection, which could contain that item.
ClearSuper();
// And regenerate to get rid of what it generates, plus anything
// that references it (since the regen code checks for that).
SS.GenerateAll(0, INT_MAX);
EnsureValidActives();
SS.later.showTW = true;
}
Vector GraphicsWindow::SnapToGrid(Vector p) {
if(!LockedInWorkplane()) return p;
EntityBase *wrkpl = SK.GetEntity(ActiveWorkplane()),
*norm = wrkpl->Normal();
Vector wo = SK.GetEntity(wrkpl->point[0])->PointGetNum(),
wu = norm->NormalU(),
wv = norm->NormalV(),
wn = norm->NormalN();
Vector pp = (p.Minus(wo)).DotInToCsys(wu, wv, wn);
pp.x = floor((pp.x / SS.gridSpacing) + 0.5)*SS.gridSpacing;
pp.y = floor((pp.y / SS.gridSpacing) + 0.5)*SS.gridSpacing;
pp.z = 0;
return pp.ScaleOutOfCsys(wu, wv, wn).Plus(wo);
}
void GraphicsWindow::MenuEdit(int id) {
switch(id) {
case MNU_UNSELECT_ALL:
SS.GW.GroupSelection();
// If there's nothing selected to de-select, and no operation
// to cancel, then perhaps they want to return to the home
// screen in the text window.
if(SS.GW.gs.n == 0 &&
SS.GW.gs.constraints == 0 &&
SS.GW.pending.operation == 0)
{
if(!(TextEditControlIsVisible() ||
GraphicsEditControlIsVisible()))
{
if(SS.TW.shown.screen == TextWindow::SCREEN_STYLE_INFO) {
SS.TW.GoToScreen(TextWindow::SCREEN_LIST_OF_STYLES);
} else {
SS.TW.ClearSuper();
}
}
}
SS.GW.ClearSuper();
HideTextEditControl();
SS.nakedEdges.Clear();
break;
case MNU_DELETE: {
SS.UndoRemember();
int i;
SK.request.ClearTags();
SK.constraint.ClearTags();
for(i = 0; i < MAX_SELECTED; i++) {
Selection *s = &(SS.GW.selection[i]);
hRequest r; r.v = 0;
if(s->entity.v && s->entity.isFromRequest()) {
r = s->entity.request();
}
if(r.v && !r.IsFromReferences()) {
SK.request.Tag(r, 1);
}
if(s->constraint.v) {
SK.constraint.Tag(s->constraint, 1);
}
}
SK.constraint.RemoveTagged();
SS.GW.DeleteTaggedRequests();
break;
}
case MNU_ROTATE_90: {
SS.GW.GroupSelection();
Entity *e = NULL;
if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) {
e = SK.GetEntity(SS.GW.gs.point[0]);
} else if(SS.GW.gs.n == 1 && SS.GW.gs.entities == 1) {
e = SK.GetEntity(SS.GW.gs.entity[0]);
}
SS.GW.ClearSelection();
hGroup hg = e ? e->group : SS.GW.activeGroup;
Group *g = SK.GetGroup(hg);
if(g->type != Group::IMPORTED) {
Error("To use this command, select a point or other "
"entity from an imported part, or make an import "
"group the active group.");
break;
}
SS.UndoRemember();
// Rotate by ninety degrees about the coordinate axis closest
// to the screen normal.
Vector norm = SS.GW.projRight.Cross(SS.GW.projUp);
norm = norm.ClosestOrtho();
norm = norm.WithMagnitude(1);
Quaternion qaa = Quaternion::From(norm, PI/2);
g->TransformImportedBy(Vector::From(0, 0, 0), qaa);
// and regenerate as necessary.
SS.MarkGroupDirty(hg);
SS.GenerateAll();
break;
}
case MNU_SNAP_TO_GRID: {
if(!SS.GW.LockedInWorkplane()) {
Error("No workplane is active. Select a workplane to define "
"the plane for the snap grid.");
break;
}
SS.GW.GroupSelection();
if(SS.GW.gs.n != SS.GW.gs.points ||
SS.GW.gs.constraints != SS.GW.gs.comments ||
(SS.GW.gs.n == 0 && SS.GW.gs.constraints == 0))
{
Error("Can't snap these items to grid; select only points or "
"text comments. To snap a line, select its endpoints.");
break;
}
SS.UndoRemember();
int i;
for(i = 0; i < SS.GW.gs.points; i++) {
hEntity hp = SS.GW.gs.point[i];
Entity *ep = SK.GetEntity(hp);
Vector p = ep->PointGetNum();
ep->PointForceTo(SS.GW.SnapToGrid(p));
// Regenerate, with this point marked as dragged so that it
// gets placed as close as possible to our snap
SS.GW.pending.point = hp;
SS.MarkGroupDirty(ep->group);
SS.GenerateAll();
SS.GW.pending.point = Entity::NO_ENTITY;
}
for(i = 0; i < SS.GW.gs.constraints; i++) {
Constraint *c = SK.GetConstraint(SS.GW.gs.constraint[i]);
c->disp.offset = SS.GW.SnapToGrid(c->disp.offset);
}
SS.GW.ClearSelection();
InvalidateGraphics();
break;
}
case MNU_UNDO:
SS.UndoUndo();
break;
case MNU_REDO:
SS.UndoRedo();
break;
case MNU_REGEN_ALL:
SS.ReloadAllImported();
SS.GenerateAll(0, INT_MAX);
SS.later.showTW = true;
break;
default: oops();
}
}
void GraphicsWindow::MenuRequest(int id) {
char *s;
switch(id) {
case MNU_SEL_WORKPLANE: {
SS.GW.GroupSelection();
Group *g = SK.GetGroup(SS.GW.activeGroup);
if(SS.GW.gs.n == 1 && SS.GW.gs.workplanes == 1) {
// A user-selected workplane
g->activeWorkplane = SS.GW.gs.entity[0];
} else if(g->type == Group::DRAWING_WORKPLANE) {
// The group's default workplane
g->activeWorkplane = g->h.entity(0);
}
if(!SS.GW.LockedInWorkplane()) {
Error("Select workplane (e.g., the XY plane) "
"before locking on.");
break;
}
// Align the view with the selected workplane
SS.GW.AnimateOntoWorkplane();
SS.GW.ClearSuper();
SS.later.showTW = true;
break;
}
case MNU_FREE_IN_3D:
SS.GW.SetWorkplaneFreeIn3d();
SS.GW.EnsureValidActives();
SS.later.showTW = true;
InvalidateGraphics();
break;
case MNU_ARC: {
SS.GW.GroupSelection();
if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) {
SS.GW.MakeTangentArc();
} else {
s = "click point on arc (draws anti-clockwise)";
goto c;
}
break;
}
case MNU_DATUM_POINT: s = "click to place datum point"; goto c;
case MNU_LINE_SEGMENT: s = "click first point of line segment"; goto c;
case MNU_CUBIC: s = "click first point of cubic segment"; goto c;
case MNU_CIRCLE: s = "click center of circle"; goto c;
case MNU_WORKPLANE: s = "click origin of workplane"; goto c;
case MNU_RECTANGLE: s = "click one corner of rectangle"; goto c;
case MNU_TTF_TEXT: s = "click top left of text"; goto c;
c:
SS.GW.pending.operation = id;
SS.GW.pending.description = s;
SS.later.showTW = true;
break;
case MNU_CONSTRUCTION: {
SS.GW.GroupSelection();
int i;
for(i = 0; i < SS.GW.gs.entities; i++) {
hEntity he = SS.GW.gs.entity[i];
if(!he.isFromRequest()) continue;
Request *r = SK.GetRequest(he.request());
r->construction = !(r->construction);
SS.MarkGroupDirty(r->group);
}
SS.GW.ClearSelection();
SS.GenerateAll();
break;
}
case MNU_SPLIT_CURVES:
SS.GW.SplitLinesOrCurves();
break;
default: oops();
}
}
void GraphicsWindow::ClearSuper(void) {
HideGraphicsEditControl();
ClearPending();
ClearSelection();
hover.Clear();
EnsureValidActives();
}
void GraphicsWindow::ToggleBool(int link, DWORD v) {
bool *vb = (bool *)v;
*vb = !*vb;
// The faces are shown as special stippling on the shaded triangle mesh,
// so not meaningful to show them and hide the shaded.
if(!SS.GW.showShaded) SS.GW.showFaces = false;
// We might need to regenerate the mesh and edge list, since the edges
// wouldn't have been generated if they were previously hidden.
if(SS.GW.showEdges) (SK.GetGroup(SS.GW.activeGroup))->displayDirty = true;
SS.GenerateAll();
InvalidateGraphics();
SS.later.showTW = true;
}