//----------------------------------------------------------------------------- // Top-level implementation of the program's main window, in which a graphical // representation of the model is drawn and edited by the user. // // Copyright 2008-2013 Jonathan Westhues. //----------------------------------------------------------------------------- #include "solvespace.h" #define mView (&GraphicsWindow::MenuView) #define mEdit (&GraphicsWindow::MenuEdit) #define mClip (&GraphicsWindow::MenuClipboard) #define mReq (&GraphicsWindow::MenuRequest) #define mCon (&Constraint::MenuConstrain) #define mFile (&SolveSpaceUI::MenuFile) #define mGrp (&Group::MenuGroup) #define mAna (&SolveSpaceUI::MenuAnalyze) #define mHelp (&SolveSpaceUI::MenuHelp) #define DEL DELETE_KEY #define ESC ESCAPE_KEY #define S SHIFT_MASK #define C CTRL_MASK #define F(k) (FUNCTION_KEY_BASE+(k)) #define TN MenuKind::NORMAL #define TC MenuKind::CHECK #define TR MenuKind::RADIO const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = { //level // label id accel ty fn { 0, N_("&File"), Command::NONE, 0, TN, NULL }, { 1, N_("&New"), Command::NEW, C|'N', TN, mFile }, { 1, N_("&Open..."), Command::OPEN, C|'O', TN, mFile }, { 1, N_("Open &Recent"), Command::OPEN_RECENT, 0, TN, mFile }, { 1, N_("&Save"), Command::SAVE, C|'S', TN, mFile }, { 1, N_("Save &As..."), Command::SAVE_AS, 0, TN, mFile }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Export &Image..."), Command::EXPORT_PNG, 0, TN, mFile }, { 1, N_("Export 2d &View..."), Command::EXPORT_VIEW, 0, TN, mFile }, { 1, N_("Export 2d &Section..."), Command::EXPORT_SECTION, 0, TN, mFile }, { 1, N_("Export 3d &Wireframe..."), Command::EXPORT_WIREFRAME, 0, TN, mFile }, { 1, N_("Export Triangle &Mesh..."), Command::EXPORT_MESH, 0, TN, mFile }, { 1, N_("Export &Surfaces..."), Command::EXPORT_SURFACES, 0, TN, mFile }, { 1, N_("Im&port..."), Command::IMPORT, 0, TN, mFile }, #ifndef __APPLE__ { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("E&xit"), Command::EXIT, C|'Q', TN, mFile }, #endif { 0, N_("&Edit"), Command::NONE, 0, TN, NULL }, { 1, N_("&Undo"), Command::UNDO, C|'Z', TN, mEdit }, { 1, N_("&Redo"), Command::REDO, C|'Y', TN, mEdit }, { 1, N_("Re&generate All"), Command::REGEN_ALL, ' ', TN, mEdit }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Snap Selection to &Grid"), Command::SNAP_TO_GRID, '.', TN, mEdit }, { 1, N_("Rotate Imported &90°"), Command::ROTATE_90, '9', TN, mEdit }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Cu&t"), Command::CUT, C|'X', TN, mClip }, { 1, N_("&Copy"), Command::COPY, C|'C', TN, mClip }, { 1, N_("&Paste"), Command::PASTE, C|'V', TN, mClip }, { 1, N_("Paste &Transformed..."), Command::PASTE_TRANSFORM, C|'T', TN, mClip }, { 1, N_("&Delete"), Command::DELETE, DEL, TN, mClip }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Select &Edge Chain"), Command::SELECT_CHAIN, C|'E', TN, mEdit }, { 1, N_("Select &All"), Command::SELECT_ALL, C|'A', TN, mEdit }, { 1, N_("&Unselect All"), Command::UNSELECT_ALL, ESC, TN, mEdit }, { 0, N_("&View"), Command::NONE, 0, TN, NULL }, { 1, N_("Zoom &In"), Command::ZOOM_IN, '+', TN, mView }, { 1, N_("Zoom &Out"), Command::ZOOM_OUT, '-', TN, mView }, { 1, N_("Zoom To &Fit"), Command::ZOOM_TO_FIT, 'F', TN, mView }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Align View to &Workplane"), Command::ONTO_WORKPLANE, 'W', TN, mView }, { 1, N_("Nearest &Ortho View"), Command::NEAREST_ORTHO, F(2), TN, mView }, { 1, N_("Nearest &Isometric View"), Command::NEAREST_ISO, F(3), TN, mView }, { 1, N_("&Center View At Point"), Command::CENTER_VIEW, F(4), TN, mView }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Show Snap &Grid"), Command::SHOW_GRID, '>', TC, mView }, { 1, N_("Use &Perspective Projection"), Command::PERSPECTIVE_PROJ, '`', TC, mView }, { 1, NULL, Command::NONE, 0, TN, NULL }, #if defined(__APPLE__) { 1, N_("Show Menu &Bar"), Command::SHOW_MENU_BAR, C|F(12), TC, mView }, #endif { 1, N_("Show &Toolbar"), Command::SHOW_TOOLBAR, 0, TC, mView }, { 1, N_("Show Property Bro&wser"), Command::SHOW_TEXT_WND, '\t', TC, mView }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Dimensions in &Inches"), Command::UNITS_INCHES, 0, TR, mView }, { 1, N_("Dimensions in &Millimeters"), Command::UNITS_MM, 0, TR, mView }, #if defined(__unix__) || defined(__APPLE__) { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("&Full Screen"), Command::FULL_SCREEN, C|F(11), TC, mView }, #endif { 0, N_("&New Group"), Command::NONE, 0, TN, NULL }, { 1, N_("Sketch In &3d"), Command::GROUP_3D, S|'3', TN, mGrp }, { 1, N_("Sketch In New &Workplane"), Command::GROUP_WRKPL, S|'W', TN, mGrp }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Step &Translating"), Command::GROUP_TRANS, S|'T', TN, mGrp }, { 1, N_("Step &Rotating"), Command::GROUP_ROT, S|'R', TN, mGrp }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("E&xtrude"), Command::GROUP_EXTRUDE, S|'X', TN, mGrp }, { 1, N_("&Lathe"), Command::GROUP_LATHE, S|'L', TN, mGrp }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Link / Assemble..."), Command::GROUP_LINK, S|'I', TN, mGrp }, { 1, N_("Link Recent"), Command::GROUP_RECENT, 0, TN, mGrp }, { 0, N_("&Sketch"), Command::NONE, 0, TN, NULL }, { 1, N_("In &Workplane"), Command::SEL_WORKPLANE, '2', TR, mReq }, { 1, N_("Anywhere In &3d"), Command::FREE_IN_3D, '3', TR, mReq }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Datum &Point"), Command::DATUM_POINT, 'P', TN, mReq }, { 1, N_("&Workplane"), Command::WORKPLANE, 0, TN, mReq }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Line &Segment"), Command::LINE_SEGMENT, 'S', TN, mReq }, { 1, N_("C&onstruction Line Segment"), Command::CONSTR_SEGMENT, S|'S', TN, mReq }, { 1, N_("&Rectangle"), Command::RECTANGLE, 'R', TN, mReq }, { 1, N_("&Circle"), Command::CIRCLE, 'C', TN, mReq }, { 1, N_("&Arc of a Circle"), Command::ARC, 'A', TN, mReq }, { 1, N_("&Bezier Cubic Spline"), Command::CUBIC, 'B', TN, mReq }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("&Text in TrueType Font"), Command::TTF_TEXT, 'T', TN, mReq }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("To&ggle Construction"), Command::CONSTRUCTION, 'G', TN, mReq }, { 1, N_("Tangent &Arc at Point"), Command::TANGENT_ARC, S|'A', TN, mReq }, { 1, N_("Split Curves at &Intersection"), Command::SPLIT_CURVES, 'I', TN, mReq }, { 0, N_("&Constrain"), Command::NONE, 0, TN, NULL }, { 1, N_("&Distance / Diameter"), Command::DISTANCE_DIA, 'D', TN, mCon }, { 1, N_("Re&ference Dimension"), Command::REF_DISTANCE, S|'D', TN, mCon }, { 1, N_("A&ngle"), Command::ANGLE, 'N', TN, mCon }, { 1, N_("Reference An&gle"), Command::REF_ANGLE, S|'N', TN, mCon }, { 1, N_("Other S&upplementary Angle"), Command::OTHER_ANGLE, 'U', TN, mCon }, { 1, N_("Toggle R&eference Dim"), Command::REFERENCE, 'E', TN, mCon }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("&Horizontal"), Command::HORIZONTAL, 'H', TN, mCon }, { 1, N_("&Vertical"), Command::VERTICAL, 'V', TN, mCon }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("&On Point / Curve / Plane"), Command::ON_ENTITY, 'O', TN, mCon }, { 1, N_("E&qual Length / Radius / Angle"), Command::EQUAL, 'Q', TN, mCon }, { 1, N_("Length Ra&tio"), Command::RATIO, 'Z', TN, mCon }, { 1, N_("Length Diff&erence"), Command::DIFFERENCE, 'J', TN, mCon }, { 1, N_("At &Midpoint"), Command::AT_MIDPOINT, 'M', TN, mCon }, { 1, N_("S&ymmetric"), Command::SYMMETRIC, 'Y', TN, mCon }, { 1, N_("Para&llel / Tangent"), Command::PARALLEL, 'L', TN, mCon }, { 1, N_("&Perpendicular"), Command::PERPENDICULAR, '[', TN, mCon }, { 1, N_("Same Orient&ation"), Command::ORIENTED_SAME, 'X', TN, mCon }, { 1, N_("Lock Point Where &Dragged"), Command::WHERE_DRAGGED, ']', TN, mCon }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Comment"), Command::COMMENT, ';', TN, mCon }, { 0, N_("&Analyze"), Command::NONE, 0, TN, NULL }, { 1, N_("Measure &Volume"), Command::VOLUME, C|S|'V', TN, mAna }, { 1, N_("Measure A&rea"), Command::AREA, C|S|'A', TN, mAna }, { 1, N_("Measure &Perimeter"), Command::PERIMETER, C|S|'P', TN, mAna }, { 1, N_("Show &Interfering Parts"), Command::INTERFERENCE, C|S|'I', TN, mAna }, { 1, N_("Show &Naked Edges"), Command::NAKED_EDGES, C|S|'N', TN, mAna }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("Show Degrees of &Freedom"), Command::SHOW_DOF, C|S|'F', TN, mAna }, { 1, NULL, Command::NONE, 0, TN, NULL }, { 1, N_("&Trace Point"), Command::TRACE_PT, C|S|'T', TN, mAna }, { 1, N_("&Stop Tracing..."), Command::STOP_TRACING, C|S|'S', TN, mAna }, { 1, N_("Step &Dimension..."), Command::STEP_DIM, C|S|'D', TN, mAna }, { 0, N_("&Help"), Command::NONE, 0, TN, NULL }, { 1, N_("&Website / Manual"), Command::WEBSITE, 0, TN, mHelp }, { 1, N_("&Language"), Command::LOCALE, 0, TN, mHelp }, #ifndef __APPLE__ { 1, N_("&About"), Command::ABOUT, 0, TN, mHelp }, #endif { -1, 0, Command::NONE, 0, TN, 0 } }; #undef DEL #undef ESC #undef S #undef C #undef F #undef TN #undef TC #undef TR std::string SolveSpace::MakeAcceleratorLabel(int accel) { if(!accel) return ""; std::string label; if(accel & GraphicsWindow::CTRL_MASK) { label += "Ctrl+"; } if(accel & GraphicsWindow::SHIFT_MASK) { label += "Shift+"; } if(accel >= GraphicsWindow::FUNCTION_KEY_BASE + 1 && accel <= GraphicsWindow::FUNCTION_KEY_BASE + 12) { label += ssprintf("F%d", accel - GraphicsWindow::FUNCTION_KEY_BASE); } else if(accel == '\t') { label += "Tab"; } else if(accel == ' ') { label += "Space"; } else if(accel == GraphicsWindow::ESCAPE_KEY) { label += "Esc"; } else if(accel == GraphicsWindow::DELETE_KEY) { label += "Del"; } else { label += (char)(accel & 0xff); } return label; } void GraphicsWindow::Init() { canvas = CreateRenderer(); if(canvas) { persistentCanvas = canvas->CreateBatch(); persistentDirty = true; } 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.groupOrder.elem[SK.groupOrder.n - 1]; SK.GetGroup(activeGroup)->Activate(); showWorkplanes = false; showNormals = true; showPoints = true; showConstraints = true; showShaded = true; showEdges = true; showMesh = false; showOutlines = false; drawOccludedAs = DrawOccludedAs::INVISIBLE; showTextWindow = true; ShowTextWindow(showTextWindow); showSnapGrid = false; context.active = false; // Do this last, so that all the menus get updated correctly. ClearSuper(); } void GraphicsWindow::AnimateOntoWorkplane() { 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. int32_t dt = (mp < 0.01 && mo < 10) ? (-20) : (int32_t)(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; int64_t 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(); // If the view screen is open, then we need to refresh it. SS.ScheduleShowTW(); } void GraphicsWindow::HandlePointForZoomToFit(Vector p, Point2d *pmax, Point2d *pmin, double *wmin, bool usePerspective) { double w; Vector pp = ProjectPoint4(p, &w); // If usePerspective 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(usePerspective) { 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(const std::vector &entities, const std::vector &constraints, const std::vector &faces, Point2d *pmax, Point2d *pmin, double *wmin, bool usePerspective, bool includeMesh) { for(Entity *e : entities) { if(e->IsPoint()) { HandlePointForZoomToFit(e->PointGetNum(), pmax, pmin, wmin, usePerspective); } else if(e->type == Entity::Type::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(int 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, usePerspective); } } else { // We have to iterate children points, because we can select entites without points for(int i = 0; i < MAX_POINTS_IN_ENTITY; i++) { if(e->point[i].v == 0) break; Vector p = SK.GetEntity(e->point[i])->PointGetNum(); HandlePointForZoomToFit(p, pmax, pmin, wmin, usePerspective); } } } for(Constraint *c : constraints) { std::vector refs; c->GetReferencePoints(GetCamera(), &refs); for(Vector p : refs) { HandlePointForZoomToFit(p, pmax, pmin, wmin, usePerspective); } } if(!includeMesh && faces.empty()) return; Group *g = SK.GetGroup(activeGroup); g->GenerateDisplayItems(); for(int i = 0; i < g->displayMesh.l.n; i++) { STriangle *tr = &(g->displayMesh.l.elem[i]); if(!includeMesh) { bool found = false; for(const hEntity &face : faces) { if(face.v != tr->meta.face) continue; found = true; break; } if(!found) continue; } HandlePointForZoomToFit(tr->a, pmax, pmin, wmin, usePerspective); HandlePointForZoomToFit(tr->b, pmax, pmin, wmin, usePerspective); HandlePointForZoomToFit(tr->c, pmax, pmin, wmin, usePerspective); } if(!includeMesh) return; for(int i = 0; i < g->polyLoops.l.n; i++) { SContour *sc = &(g->polyLoops.l.elem[i]); for(int j = 0; j < sc->l.n; j++) { HandlePointForZoomToFit(sc->l.elem[j].p, pmax, pmin, wmin, usePerspective); } } } void GraphicsWindow::ZoomToFit(bool includingInvisibles, bool useSelection) { std::vector entities; std::vector constraints; std::vector faces; if(useSelection) { for(int i = 0; i < selection.n; i++) { Selection *s = &selection.elem[i]; if(s->entity.v != 0) { Entity *e = SK.entity.FindById(s->entity); if(e->IsFace()) { faces.push_back(e->h); continue; } entities.push_back(e); } if(s->constraint.v != 0) { Constraint *c = SK.constraint.FindById(s->constraint); constraints.push_back(c); } } } bool selectionUsed = !entities.empty() || !constraints.empty() || !faces.empty(); if(!selectionUsed) { for(Entity &e : SK.entity) { // we don't want to handle separate points, because we will iterate them inside entities. if(e.IsPoint()) continue; if(!includingInvisibles && !e.IsVisible()) continue; entities.push_back(&e); } for(Constraint &c : SK.constraint) { if(!c.IsVisible()) continue; constraints.push_back(&c); } } // On the first run, ignore perspective. Point2d pmax = { -1e12, -1e12 }, pmin = { 1e12, 1e12 }; double wmin = 1; LoopOverPoints(entities, constraints, faces, &pmax, &pmin, &wmin, /*usePerspective=*/false, /*includeMesh=*/!selectionUsed); 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(EXACT(dx == 0 && dy == 0)) { scale = 5; } else { double scalex = 1e12, scaley = 1e12; if(EXACT(dx != 0)) scalex = 0.9*width /dx; if(EXACT(dy != 0)) scaley = 0.9*height/dy; scale = min(scalex, scaley); scale = min(300.0, 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(entities, constraints, faces, &pmax, &pmin, &wmin, /*usePerspective=*/true, /*includeMesh=*/!selectionUsed); // 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(Command id) { switch(id) { case Command::ZOOM_IN: SS.GW.scale *= 1.2; SS.ScheduleShowTW(); break; case Command::ZOOM_OUT: SS.GW.scale /= 1.2; SS.ScheduleShowTW(); break; case Command::ZOOM_TO_FIT: SS.GW.ZoomToFit(/*includingInvisibles=*/false, /*useSelection=*/true); SS.ScheduleShowTW(); break; case Command::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 Command::PERSPECTIVE_PROJ: SS.usePerspectiveProj = !SS.usePerspectiveProj; if(SS.cameraTangent < 1e-6) { Error("The perspective factor is set to zero, so the view will " "always be a parallel projection.\n\n" "For a perspective projection, modify the perspective " "factor in the configuration screen. A value around 0.3 " "is typical."); } SS.GW.EnsureValidActives(); InvalidateGraphics(); break; case Command::ONTO_WORKPLANE: if(SS.GW.LockedInWorkplane()) { SS.GW.AnimateOntoWorkplane(); SS.ScheduleShowTW(); break; } // if not in 2d mode fall through and use ORTHO logic case Command::NEAREST_ORTHO: case Command::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 == Command::NEAREST_ORTHO || id == Command::ONTO_WORKPLANE) { 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 Command::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 Command::SHOW_MENU_BAR: ToggleMenuBar(); SS.GW.EnsureValidActives(); InvalidateGraphics(); break; case Command::SHOW_TOOLBAR: SS.showToolbar = !SS.showToolbar; SS.GW.EnsureValidActives(); InvalidateGraphics(); break; case Command::SHOW_TEXT_WND: SS.GW.showTextWindow = !SS.GW.showTextWindow; SS.GW.EnsureValidActives(); break; case Command::UNITS_INCHES: SS.viewUnits = Unit::INCHES; SS.ScheduleShowTW(); SS.GW.EnsureValidActives(); break; case Command::UNITS_MM: SS.viewUnits = Unit::MM; SS.ScheduleShowTW(); SS.GW.EnsureValidActives(); break; case Command::FULL_SCREEN: ToggleFullScreen(); SS.GW.EnsureValidActives(); break; default: ssassert(false, "Unexpected menu ID"); } InvalidateGraphics(); } void GraphicsWindow::EnsureValidActives() { 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.groupOrder.n; i++) { if(SK.groupOrder.elem[i].v != Group::HGROUP_REFERENCES.v) { break; } } if(i >= SK.groupOrder.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(); // We've created the default group, but not the workplane entity; // do it now so that drawing mode isn't switched to "Free in 3d". SS.GenerateAll(SolveSpaceUI::Generate::ALL); } else { activeGroup = SK.groupOrder.elem[i]; } 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(); RadioMenuByCmd(Command::FREE_IN_3D, !locked); RadioMenuByCmd(Command::SEL_WORKPLANE, locked); SS.UndoEnableMenus(); switch(SS.viewUnits) { case Unit::MM: case Unit::INCHES: break; default: SS.viewUnits = Unit::MM; break; } RadioMenuByCmd(Command::UNITS_MM, SS.viewUnits == Unit::MM); RadioMenuByCmd(Command::UNITS_INCHES, SS.viewUnits == Unit::INCHES); ShowTextWindow(SS.GW.showTextWindow); CheckMenuByCmd(Command::SHOW_TEXT_WND, /*checked=*/SS.GW.showTextWindow); #if defined(__APPLE__) CheckMenuByCmd(Command::SHOW_MENU_BAR, /*checked=*/MenuBarIsVisible()); #endif CheckMenuByCmd(Command::SHOW_TOOLBAR, /*checked=*/SS.showToolbar); CheckMenuByCmd(Command::PERSPECTIVE_PROJ, /*checked=*/SS.usePerspectiveProj); CheckMenuByCmd(Command::SHOW_GRID,/*checked=*/SS.GW.showSnapGrid); #if defined(__unix__) || defined(__APPLE__) CheckMenuByCmd(Command::FULL_SCREEN, /*checked=*/FullScreenIsActive()); #endif if(change) SS.ScheduleShowTW(); } void GraphicsWindow::SetWorkplaneFreeIn3d() { SK.GetGroup(activeGroup)->activeWorkplane = Entity::FREE_IN_3D; } hEntity GraphicsWindow::ActiveWorkplane() { Group *g = SK.group.FindByIdNoOops(activeGroup); if(g) { return g->activeWorkplane; } else { return Entity::FREE_IN_3D; } } bool GraphicsWindow::LockedInWorkplane() { return (SS.GW.ActiveWorkplane().v != Entity::FREE_IN_3D.v); } void GraphicsWindow::ForceTextWindowShown() { if(!showTextWindow) { showTextWindow = true; CheckMenuByCmd(Command::SHOW_TEXT_WND, /*checked=*/true); ShowTextWindow(true); } } void GraphicsWindow::DeleteTaggedRequests() { // 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(); SS.TW.HideEditControl(); // 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(SolveSpaceUI::Generate::ALL); EnsureValidActives(); SS.ScheduleShowTW(); } 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(Command id) { switch(id) { case Command::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 == Pending::NONE) { 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(); SS.TW.HideEditControl(); SS.nakedEdges.Clear(); SS.justExportedInfo.draw = false; // This clears the marks drawn to indicate which points are // still free to drag. Param *p; for(p = SK.param.First(); p; p = SK.param.NextAfter(p)) { p->free = false; } if(SS.exportMode) { SS.exportMode = false; SS.GenerateAll(SolveSpaceUI::Generate::ALL); } break; case Command::SELECT_ALL: { Entity *e; for(e = SK.entity.First(); e; e = SK.entity.NextAfter(e)) { if(e->group.v != SS.GW.activeGroup.v) continue; if(e->IsFace() || e->IsDistance()) continue; if(!e->IsVisible()) continue; SS.GW.MakeSelected(e->h); } InvalidateGraphics(); SS.ScheduleShowTW(); break; } case Command::SELECT_CHAIN: { Entity *e; int newlySelected = 0; bool didSomething; do { didSomething = false; for(e = SK.entity.First(); e; e = SK.entity.NextAfter(e)) { if(e->group.v != SS.GW.activeGroup.v) continue; if(!e->HasEndpoints()) continue; if(!e->IsVisible()) continue; Vector st = e->EndpointStart(), fi = e->EndpointFinish(); bool onChain = false, alreadySelected = false; List *ls = &(SS.GW.selection); for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) { if(!s->entity.v) continue; if(s->entity.v == e->h.v) { alreadySelected = true; continue; } Entity *se = SK.GetEntity(s->entity); if(!se->HasEndpoints()) continue; Vector sst = se->EndpointStart(), sfi = se->EndpointFinish(); if(sst.Equals(st) || sst.Equals(fi) || sfi.Equals(st) || sfi.Equals(fi)) { onChain = true; } } if(onChain && !alreadySelected) { SS.GW.MakeSelected(e->h); newlySelected++; didSomething = true; } } } while(didSomething); if(newlySelected == 0) { Error("No additional entities share endpoints with the " "selected entities."); } InvalidateGraphics(); SS.ScheduleShowTW(); break; } case Command::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::Type::LINKED) { Error("To use this command, select a point or other " "entity from an linked part, or make a link " "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); break; } case Command::SNAP_TO_GRID: { if(!SS.GW.LockedInWorkplane()) { Error("No workplane is active. Activate a workplane " "(with Sketch -> In Workplane) to define the plane " "for the snap grid."); break; } SS.GW.GroupSelection(); if(SS.GW.gs.points == 0 && SS.GW.gs.constraintLabels == 0) { Error("Can't snap these items to grid; select points, " "text comments, or constraints with a label. " "To snap a line, select its endpoints."); break; } SS.UndoRemember(); List *ls = &(SS.GW.selection); for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) { if(s->entity.v) { hEntity hp = s->entity; Entity *ep = SK.GetEntity(hp); if(!ep->IsPoint()) continue; Vector p = ep->PointGetNum(); ep->PointForceTo(SS.GW.SnapToGrid(p)); SS.GW.pending.points.Add(&hp); SS.MarkGroupDirty(ep->group); } else if(s->constraint.v) { Constraint *c = SK.GetConstraint(s->constraint); std::vector refs; c->GetReferencePoints(SS.GW.GetCamera(), &refs); c->disp.offset = c->disp.offset.Plus(SS.GW.SnapToGrid(refs[0]).Minus(refs[0])); } } // Regenerate, with these points marked as dragged so that they // get placed as close as possible to our snap grid. SS.GW.ClearPending(); SS.GW.ClearSelection(); InvalidateGraphics(); break; } case Command::UNDO: SS.UndoUndo(); break; case Command::REDO: SS.UndoRedo(); break; case Command::REGEN_ALL: SS.ReloadAllImported(); SS.GenerateAll(SolveSpaceUI::Generate::UNTIL_ACTIVE); SS.ScheduleShowTW(); break; default: ssassert(false, "Unexpected menu ID"); } } void GraphicsWindow::MenuRequest(Command id) { const char *s; switch(id) { case Command::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::Type::DRAWING_WORKPLANE) { // The group's default workplane g->activeWorkplane = g->h.entity(0); Message("No workplane selected. Activating default workplane " "for this group."); } if(!SS.GW.LockedInWorkplane()) { Error("No workplane is selected, and the active group does " "not have a default workplane. Try selecting a " "workplane, or activating a sketch-in-new-workplane " "group."); break; } // Align the view with the selected workplane SS.GW.AnimateOntoWorkplane(); SS.GW.ClearSuper(); SS.ScheduleShowTW(); break; } case Command::FREE_IN_3D: SS.GW.SetWorkplaneFreeIn3d(); SS.GW.EnsureValidActives(); SS.ScheduleShowTW(); InvalidateGraphics(); break; case Command::TANGENT_ARC: SS.GW.GroupSelection(); if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) { SS.GW.MakeTangentArc(); } else if(SS.GW.gs.n != 0) { Error("Bad selection for tangent arc at point. Select a " "single point, or select nothing to set up arc " "parameters."); } else { SS.TW.GoToScreen(TextWindow::Screen::TANGENT_ARC); SS.GW.ForceTextWindowShown(); SS.ScheduleShowTW(); InvalidateGraphics(); // repaint toolbar } break; case Command::ARC: s = "click point on arc (draws anti-clockwise)"; goto c; case Command::DATUM_POINT: s = "click to place datum point"; goto c; case Command::LINE_SEGMENT: s = "click first point of line segment"; goto c; case Command::CONSTR_SEGMENT: s = "click first point of construction line segment"; goto c; case Command::CUBIC: s = "click first point of cubic segment"; goto c; case Command::CIRCLE: s = "click center of circle"; goto c; case Command::WORKPLANE: s = "click origin of workplane"; goto c; case Command::RECTANGLE: s = "click one corner of rectangle"; goto c; case Command::TTF_TEXT: s = "click top left of text"; goto c; c: SS.GW.pending.operation = GraphicsWindow::Pending::COMMAND; SS.GW.pending.command = id; SS.GW.pending.description = s; SS.ScheduleShowTW(); InvalidateGraphics(); // repaint toolbar break; case Command::CONSTRUCTION: { SS.UndoRemember(); SS.GW.GroupSelection(); if(SS.GW.gs.entities == 0) { Error("No entities are selected. Select entities before " "trying to toggle their construction state."); } 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(); break; } case Command::SPLIT_CURVES: SS.GW.SplitLinesOrCurves(); break; default: ssassert(false, "Unexpected menu ID"); } } void GraphicsWindow::ClearSuper() { HideGraphicsEditControl(); ClearPending(); ClearSelection(); hover.Clear(); EnsureValidActives(); } void GraphicsWindow::ToggleBool(bool *v) { *v = !*v; // The faces are shown as special stippling on the shaded triangle mesh, // so not meaningful to show them and hide the shaded. if(!showShaded) showFaces = false; // If the mesh or edges were previously hidden, they haven't been generated, // and if we are going to show them, we need to generate them first. Group *g = SK.GetGroup(SS.GW.activeGroup); if(*v && (g->displayOutlines.l.n == 0 && (v == &showEdges || v == &showOutlines))) { SS.GenerateAll(SolveSpaceUI::Generate::UNTIL_ACTIVE); } SS.GW.persistentDirty = true; InvalidateGraphics(); SS.ScheduleShowTW(); } bool GraphicsWindow::SuggestLineConstraint(hRequest request, Constraint::Type *type) { if(LockedInWorkplane()) { Entity *ptA = SK.GetEntity(request.entity(1)), *ptB = SK.GetEntity(request.entity(2)); Expr *au, *av, *bu, *bv; ptA->PointGetExprsInWorkplane(ActiveWorkplane(), &au, &av); ptB->PointGetExprsInWorkplane(ActiveWorkplane(), &bu, &bv); double du = au->Minus(bu)->Eval(); double dv = av->Minus(bv)->Eval(); const double TOLERANCE_RATIO = 0.02; if(fabs(dv) > LENGTH_EPS && fabs(du / dv) < TOLERANCE_RATIO) { *type = Constraint::Type::VERTICAL; return true; } else if(fabs(du) > LENGTH_EPS && fabs(dv / du) < TOLERANCE_RATIO) { *type = Constraint::Type::HORIZONTAL; return true; } } return false; }