236ee16da6
in one place. And remove the ability to disable the solver, since that's unlikely to be anything but confusing (and in any case, was badly implemented). This is in preparation for selective solving, of only the dirty groups. [git-p4: depot-paths = "//depot/solvespace/": change = 1769]
1262 lines
43 KiB
C++
1262 lines
43 KiB
C++
#include <stdarg.h>
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#include "solvespace.h"
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#define mView (&GraphicsWindow::MenuView)
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#define mEdit (&GraphicsWindow::MenuEdit)
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#define mReq (&GraphicsWindow::MenuRequest)
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#define mCon (&Constraint::MenuConstrain)
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#define mFile (&SolveSpace::MenuFile)
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#define mGrp (&Group::MenuGroup)
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#define S 0x100
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#define C 0x200
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const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
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{ 0, "&File", 0, NULL },
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{ 1, "&New\tCtrl+N", MNU_NEW, 'N'|C, mFile },
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{ 1, "&Open...\tCtrl+O", MNU_OPEN, 'O'|C, mFile },
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{10, "&Open Recent", MNU_OPEN_RECENT, 0, mFile },
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{ 1, "&Save\tCtrl+S", MNU_SAVE, 'S'|C, mFile },
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{ 1, "Save &As...", MNU_SAVE_AS, 0, mFile },
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{ 1, NULL, 0, 0, NULL },
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{ 1, "E&xit", MNU_EXIT, 0, mFile },
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{ 0, "&Edit", 0, NULL },
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{ 1, "&Undo\tCtrl+Z", 0, NULL },
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{ 1, "&Redo\tCtrl+Y", 0, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "&Delete\tDel", MNU_DELETE, 127, mEdit },
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{ 1, NULL, 0, NULL },
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{ 1, "&Unselect All\tEsc", MNU_UNSELECT_ALL, 27, mEdit },
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{ 0, "&View", 0, NULL },
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{ 1, "Zoom &In\t+", MNU_ZOOM_IN, '+', mView },
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{ 1, "Zoom &Out\t-", MNU_ZOOM_OUT, '-', mView },
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{ 1, "Zoom To &Fit\tF", MNU_ZOOM_TO_FIT, 'F', mView },
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{ 1, NULL, 0, NULL },
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{ 1, "Show Text &Window\tTab", MNU_SHOW_TEXT_WND, '\t', mView },
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{ 1, NULL, 0, NULL },
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{ 1, "Dimensions in &Inches", MNU_UNITS_INCHES, 0, mView },
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{ 1, "Dimensions in &Millimeters", MNU_UNITS_MM, 0, mView },
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{ 0, "&New Feature", 0, 0, NULL },
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{ 1, "&Drawing in 3d\tShift+Ctrl+D", MNU_GROUP_3D, 'D'|S|C, mGrp },
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{ 1, "Drawing in Workplane\tShift+Ctrl+W", MNU_GROUP_WRKPL, 'W'|S|C, mGrp },
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{ 1, NULL, 0, NULL },
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{ 1, "Step &Translating\tShift+Ctrl+R", MNU_GROUP_TRANS, 'T'|S|C,mGrp },
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{ 1, "Step &Rotating\tShift+Ctrl+T", MNU_GROUP_ROT, 'R'|S|C,mGrp },
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{ 1, NULL, 0, 0, NULL },
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{ 1, "Extrusion\tShift+Ctrl+X", MNU_GROUP_EXTRUDE, 'X'|S|C,mGrp },
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{ 1, NULL, 0, 0, NULL },
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{ 1, "Import...\tShift+Ctrl+I", MNU_GROUP_IMPORT, 'I'|S|C,mGrp },
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{11, "Import Recent", MNU_GROUP_RECENT, 0, mGrp },
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{ 0, "&Request", 0, NULL },
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{ 1, "Draw in &Workplane\tW", MNU_SEL_WORKPLANE, 'W', mReq },
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{ 1, "Draw Anywhere in 3d\tQ", MNU_FREE_IN_3D, 'Q', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "Datum &Point\tP", MNU_DATUM_POINT, 'P', mReq },
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{ 1, "&Workplane (Coordinate S&ystem)\tY", MNU_WORKPLANE, 'Y', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "Line &Segment\tS", MNU_LINE_SEGMENT, 'S', mReq },
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{ 1, "&Rectangle\tR", MNU_RECTANGLE, 'R', mReq },
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{ 1, "&Circle\tC", MNU_CIRCLE, 'C', mReq },
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{ 1, "&Arc of a Circle\tA", MNU_ARC, 'A', mReq },
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{ 1, "&Cubic Segment\t3", MNU_CUBIC, '3', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "Sym&bolic Variable\tB", 0, 'B', mReq },
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{ 1, "&Import From File...\tI", 0, 'I', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "To&ggle Construction\tG", MNU_CONSTRUCTION, 'G', mReq },
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{ 0, "&Constrain", 0, NULL },
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{ 1, "&Distance / Diameter\tShift+D", MNU_DISTANCE_DIA, 'D'|S, mCon },
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{ 1, "A&ngle\tShift+N", MNU_ANGLE, 'N'|S, mCon },
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{ 1, "Other S&upplementary Angle\tShift+U", MNU_OTHER_ANGLE, 'U'|S, mCon },
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{ 1, NULL, 0, NULL },
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{ 1, "&Horizontal\tShift+H", MNU_HORIZONTAL, 'H'|S, mCon },
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{ 1, "&Vertical\tShift+V", MNU_VERTICAL, 'V'|S, mCon },
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{ 1, NULL, 0, NULL },
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{ 1, "&On Point / Curve / Plane\tShift+O", MNU_ON_ENTITY, 'O'|S, mCon },
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{ 1, "E&qual Length / Radius\tShift+Q", MNU_EQUAL, 'Q'|S, mCon },
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{ 1, "Length Ra&tio\tShift+T", MNU_RATIO, 'T'|S, mCon },
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{ 1, "At &Midpoint\tShift+M", MNU_AT_MIDPOINT, 'M'|S, mCon },
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{ 1, "S&ymmetric\tShift+Y", MNU_SYMMETRIC, 'Y'|S, mCon },
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{ 1, "Para&llel\tShift+L", MNU_PARALLEL, 'L'|S, mCon },
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{ 1, "Same O&rientation\tShift+R", MNU_ORIENTED_SAME, 'R'|S, mCon },
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{ 1, NULL, 0, NULL },
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{ 1, "Sym&bolic Equation\tShift+B", 0, 'B'|S, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "Solve Once Now\tSpace", MNU_SOLVE_NOW, ' ', mCon },
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{ 0, "&Help", 0, NULL },
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{ 1, "&About\t", 0, NULL },
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{ -1 },
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};
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void GraphicsWindow::Init(void) {
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memset(this, 0, sizeof(*this));
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offset.x = offset.y = offset.z = 0;
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scale = 5;
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projRight.x = 1; projRight.y = projRight.z = 0;
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projUp.y = 1; projUp.z = projUp.x = 0;
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// And with the latest visible group active, or failing that the first
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// group after the references
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int i;
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for(i = 0; i < SS.group.n; i++) {
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Group *g = &(SS.group.elem[i]);
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if(i == 1 || g->visible) activeGroup = g->h;
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}
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SS.GetGroup(activeGroup)->Activate();
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EnsureValidActives();
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showWorkplanes = true;
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showNormals = true;
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showPoints = true;
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showConstraints = true;
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showHdnLines = false;
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showShaded = true;
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showMesh = false;
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showTextWindow = true;
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ShowTextWindow(showTextWindow);
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}
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void GraphicsWindow::NormalizeProjectionVectors(void) {
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Vector norm = projRight.Cross(projUp);
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projUp = norm.Cross(projRight);
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projUp = projUp.ScaledBy(1/projUp.Magnitude());
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projRight = projRight.ScaledBy(1/projRight.Magnitude());
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}
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Point2d GraphicsWindow::ProjectPoint(Vector p) {
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p = p.Plus(offset);
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Point2d r;
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r.x = p.Dot(projRight) * scale;
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r.y = p.Dot(projUp) * scale;
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return r;
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}
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void GraphicsWindow::AnimateOntoWorkplane(void) {
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if(!LockedInWorkplane()) return;
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Entity *w = SS.GetEntity(ActiveWorkplane());
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Quaternion quatf = w->Normal()->NormalGetNum();
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Vector offsetf = (SS.GetEntity(w->point[0])->PointGetNum()).ScaledBy(-1);
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// Get our initial orientation and translation.
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Quaternion quat0 = Quaternion::From(projRight, projUp);
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Vector offset0 = offset;
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// Make sure we take the shorter of the two possible paths.
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double mp = (quatf.Minus(quat0)).Magnitude();
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double mm = (quatf.Plus(quat0)).Magnitude();
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if(mp > mm) {
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quatf = quatf.ScaledBy(-1);
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mp = mm;
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}
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double mo = (offset0.Minus(offsetf)).Magnitude()*scale;
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// Animate transition, unless it's a tiny move.
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SDWORD dt = (mp < 0.01 && mo < 10) ? (-20) :
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(SDWORD)(100 + 1000*mp + 0.4*mo);
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SDWORD tn, t0 = GetMilliseconds();
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double s = 0;
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Quaternion dq = quatf.Times(quat0.Inverse());
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do {
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offset = (offset0.ScaledBy(1 - s)).Plus(offsetf.ScaledBy(s));
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Quaternion quat = (dq.ToThe(s)).Times(quat0);
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quat = quat.WithMagnitude(1);
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projRight = quat.RotationU();
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projUp = quat.RotationV();
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PaintGraphics();
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tn = GetMilliseconds();
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s = (tn - t0)/((double)dt);
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} while((tn - t0) < dt);
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projRight = quatf.RotationU();
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projUp = quatf.RotationV();
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offset = offsetf;
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InvalidateGraphics();
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}
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void GraphicsWindow::MenuView(int id) {
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switch(id) {
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case MNU_ZOOM_IN:
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SS.GW.scale *= 1.2;
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break;
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case MNU_ZOOM_OUT:
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SS.GW.scale /= 1.2;
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break;
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case MNU_ZOOM_TO_FIT:
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break;
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case MNU_SHOW_TEXT_WND:
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SS.GW.showTextWindow = !SS.GW.showTextWindow;
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SS.GW.EnsureValidActives();
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break;
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case MNU_UNITS_MM:
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SS.GW.viewUnits = UNIT_MM;
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SS.GW.EnsureValidActives();
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break;
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case MNU_UNITS_INCHES:
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SS.GW.viewUnits = UNIT_INCHES;
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SS.GW.EnsureValidActives();
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break;
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default: oops();
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}
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InvalidateGraphics();
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}
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char *GraphicsWindow::ToString(double v) {
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static int WhichBuf;
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static char Bufs[8][128];
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WhichBuf++;
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if(WhichBuf >= 8 || WhichBuf < 0) WhichBuf = 0;
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char *s = Bufs[WhichBuf];
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sprintf(s, "%.3f", v);
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return s;
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}
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double GraphicsWindow::FromString(char *s) {
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return atof(s);
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}
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void GraphicsWindow::EnsureValidActives(void) {
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bool change = false;
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// The active group must exist, and not be the references.
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Group *g = SS.group.FindByIdNoOops(activeGroup);
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if((!g) || (g->h.v == Group::HGROUP_REFERENCES.v)) {
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int i;
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for(i = 0; i < SS.group.n; i++) {
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if(SS.group.elem[i].h.v != Group::HGROUP_REFERENCES.v) {
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break;
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}
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}
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if(i >= SS.group.n) oops();
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activeGroup = SS.group.elem[i].h;
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SS.GetGroup(activeGroup)->Activate();
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change = true;
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}
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// The active coordinate system must also exist.
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if(LockedInWorkplane()) {
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Entity *e = SS.entity.FindByIdNoOops(ActiveWorkplane());
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if(e) {
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hGroup hgw = e->group;
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if(hgw.v != activeGroup.v && SS.GroupsInOrder(activeGroup, hgw)) {
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// The active workplane is in a group that comes after the
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// active group; so any request or constraint will fail.
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SetWorkplaneFreeIn3d();
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change = true;
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}
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} else {
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SetWorkplaneFreeIn3d();
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change = true;
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}
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}
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bool locked = LockedInWorkplane();
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CheckMenuById(MNU_FREE_IN_3D, !locked);
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CheckMenuById(MNU_SEL_WORKPLANE, locked);
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// And update the checked state for various menus
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switch(viewUnits) {
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case UNIT_MM:
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case UNIT_INCHES:
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break;
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default:
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viewUnits = UNIT_MM;
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}
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CheckMenuById(MNU_UNITS_MM, viewUnits == UNIT_MM);
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CheckMenuById(MNU_UNITS_INCHES, viewUnits == UNIT_INCHES);
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ShowTextWindow(SS.GW.showTextWindow);
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CheckMenuById(MNU_SHOW_TEXT_WND, SS.GW.showTextWindow);
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if(change) SS.TW.Show();
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}
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void GraphicsWindow::SetWorkplaneFreeIn3d(void) {
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SS.GetGroup(activeGroup)->activeWorkplane = Entity::FREE_IN_3D;
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}
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hEntity GraphicsWindow::ActiveWorkplane(void) {
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Group *g = SS.group.FindByIdNoOops(activeGroup);
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if(g) {
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return g->activeWorkplane;
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} else {
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return Entity::FREE_IN_3D;
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}
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}
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bool GraphicsWindow::LockedInWorkplane(void) {
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return (SS.GW.ActiveWorkplane().v != Entity::FREE_IN_3D.v);
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}
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void GraphicsWindow::MenuEdit(int id) {
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switch(id) {
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case MNU_UNSELECT_ALL:
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SS.GW.GroupSelection();
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if(SS.GW.gs.n == 0 && SS.GW.pending.operation == 0) {
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SS.TW.ClearSuper();
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}
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SS.GW.ClearSuper();
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HideTextEditControl();
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break;
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case MNU_DELETE: {
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int i;
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SS.request.ClearTags();
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SS.constraint.ClearTags();
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for(i = 0; i < MAX_SELECTED; i++) {
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Selection *s = &(SS.GW.selection[i]);
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hRequest r; r.v = 0;
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if(s->entity.v && s->entity.isFromRequest()) {
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r = s->entity.request();
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}
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if(r.v && !r.IsFromReferences()) {
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SS.request.Tag(r, 1);
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}
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if(s->constraint.v) {
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SS.constraint.Tag(s->constraint, 1);
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}
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}
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SS.request.RemoveTagged();
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SS.constraint.RemoveTagged();
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// An edit might be in progress for the just-deleted item. So
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// now it's not.
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HideGraphicsEditControl();
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HideTextEditControl();
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// And clear out the selection, which could contain that item.
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SS.GW.ClearSuper();
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// And regenerate to get rid of what it generates, plus anything
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// that references it (since the regen code checks for that).
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SS.GenerateAll(0, INT_MAX);
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SS.GW.EnsureValidActives();
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SS.TW.Show();
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break;
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}
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default: oops();
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}
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}
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void GraphicsWindow::MenuRequest(int id) {
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char *s;
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switch(id) {
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case MNU_SEL_WORKPLANE: {
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SS.GW.GroupSelection();
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if(SS.GW.gs.n == 1 && SS.GW.gs.workplanes == 1) {
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SS.GetGroup(SS.GW.activeGroup)->activeWorkplane =
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SS.GW.gs.entity[0];
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}
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if(!SS.GW.LockedInWorkplane()) {
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Error("Select workplane (e.g., the XY plane) "
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"before locking on.");
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break;
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}
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// Align the view with the selected workplane
|
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SS.GW.AnimateOntoWorkplane();
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SS.GW.ClearSuper();
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SS.TW.Show();
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break;
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}
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case MNU_FREE_IN_3D:
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SS.GW.SetWorkplaneFreeIn3d();
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SS.GW.EnsureValidActives();
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SS.TW.Show();
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break;
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case MNU_DATUM_POINT: s = "click to place datum point"; goto c;
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case MNU_LINE_SEGMENT: s = "click first point of line segment"; goto c;
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case MNU_CUBIC: s = "click first point of cubic segment"; goto c;
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case MNU_CIRCLE: s = "click center of circle"; goto c;
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case MNU_ARC: s = "click point on arc (draws anti-clockwise)"; goto c;
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case MNU_WORKPLANE: s = "click origin of workplane"; goto c;
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case MNU_RECTANGLE: s = "click one corner of rectangular"; goto c;
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c:
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SS.GW.pending.operation = id;
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SS.GW.pending.description = s;
|
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SS.TW.Show();
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break;
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case MNU_CONSTRUCTION: {
|
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SS.GW.GroupSelection();
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int i;
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for(i = 0; i < SS.GW.gs.entities; i++) {
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hEntity he = SS.GW.gs.entity[i];
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if(!he.isFromRequest()) continue;
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Request *r = SS.GetRequest(he.request());
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r->construction = !(r->construction);
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}
|
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SS.GW.ClearSelection();
|
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SS.GenerateAll();
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break;
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}
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default: oops();
|
|
}
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}
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void GraphicsWindow::UpdateDraggedPoint(hEntity hp, double mx, double my) {
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Entity *p = SS.GetEntity(hp);
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Vector pos = p->PointGetNum();
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UpdateDraggedNum(&pos, mx, my);
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p->PointForceTo(pos);
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}
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void GraphicsWindow::UpdateDraggedNum(Vector *pos, double mx, double my) {
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*pos = pos->Plus(projRight.ScaledBy((mx - orig.mouse.x)/scale));
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*pos = pos->Plus(projUp.ScaledBy((my - orig.mouse.y)/scale));
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orig.mouse.x = mx;
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orig.mouse.y = my;
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InvalidateGraphics();
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}
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void GraphicsWindow::MouseMoved(double x, double y, bool leftDown,
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bool middleDown, bool rightDown, bool shiftDown, bool ctrlDown)
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{
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if(GraphicsEditControlIsVisible()) return;
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|
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Point2d mp = { x, y };
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|
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// If the middle button is down, then mouse movement is used to pan and
|
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// rotate our view. This wins over everything else.
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if(middleDown) {
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hover.Clear();
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|
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double dx = (x - orig.mouse.x) / scale;
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double dy = (y - orig.mouse.y) / scale;
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// When the view is locked, permit only translation (pan).
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if(!(shiftDown || ctrlDown)) {
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offset.x = orig.offset.x + dx*projRight.x + dy*projUp.x;
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offset.y = orig.offset.y + dx*projRight.y + dy*projUp.y;
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offset.z = orig.offset.z + dx*projRight.z + dy*projUp.z;
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|
} else if(ctrlDown) {
|
|
double theta = atan2(orig.mouse.y, orig.mouse.x);
|
|
theta -= atan2(y, x);
|
|
|
|
Vector normal = orig.projRight.Cross(orig.projUp);
|
|
projRight = orig.projRight.RotatedAbout(normal, theta);
|
|
projUp = orig.projUp.RotatedAbout(normal, theta);
|
|
|
|
NormalizeProjectionVectors();
|
|
} else {
|
|
double s = 0.3*(PI/180)*scale; // degrees per pixel
|
|
projRight = orig.projRight.RotatedAbout(orig.projUp, -s*dx);
|
|
projUp = orig.projUp.RotatedAbout(orig.projRight, s*dy);
|
|
|
|
NormalizeProjectionVectors();
|
|
}
|
|
|
|
orig.projRight = projRight;
|
|
orig.projUp = projUp;
|
|
orig.offset = offset;
|
|
orig.mouse.x = x;
|
|
orig.mouse.y = y;
|
|
|
|
InvalidateGraphics();
|
|
return;
|
|
}
|
|
|
|
if(pending.operation == 0) {
|
|
double dm = orig.mouse.DistanceTo(mp);
|
|
// If we're currently not doing anything, then see if we should
|
|
// start dragging something.
|
|
if(leftDown && dm > 3) {
|
|
if(hover.entity.v) {
|
|
Entity *e = SS.GetEntity(hover.entity);
|
|
if(e->IsPoint()) {
|
|
// Start dragging this point.
|
|
ClearSelection();
|
|
pending.point = hover.entity;
|
|
pending.operation = DRAGGING_POINT;
|
|
} else if(e->type == Entity::CIRCLE) {
|
|
// Drag the radius.
|
|
ClearSelection();
|
|
pending.circle = hover.entity;
|
|
pending.operation = DRAGGING_RADIUS;
|
|
} else if(e->IsNormal()) {
|
|
ClearSelection();
|
|
pending.normal = hover.entity;
|
|
pending.operation = DRAGGING_NORMAL;
|
|
}
|
|
} else if(hover.constraint.v &&
|
|
SS.GetConstraint(hover.constraint)->HasLabel())
|
|
{
|
|
ClearSelection();
|
|
pending.constraint = hover.constraint;
|
|
pending.operation = DRAGGING_CONSTRAINT;
|
|
}
|
|
} else {
|
|
// Otherwise, just hit test and give up; but don't hit test
|
|
// if the mouse is down, because then the user could hover
|
|
// a point, mouse down (thus selecting it), and drag, in an
|
|
// effort to drag the point, but instead hover a different
|
|
// entity before we move far enough to start the drag.
|
|
if(!leftDown) HitTestMakeSelection(mp);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// If the user has started an operation from the menu, but not
|
|
// completed it, then just do the selection.
|
|
if(pending.operation < FIRST_PENDING) {
|
|
HitTestMakeSelection(mp);
|
|
return;
|
|
}
|
|
|
|
// We're currently dragging something; so do that. But if we haven't
|
|
// painted since the last time we solved, do nothing, because there's
|
|
// no sense solving a frame and not displaying it.
|
|
if(!havePainted) return;
|
|
switch(pending.operation) {
|
|
case DRAGGING_CONSTRAINT: {
|
|
Constraint *c = SS.constraint.FindById(pending.constraint);
|
|
UpdateDraggedNum(&(c->disp.offset), x, y);
|
|
break;
|
|
}
|
|
case DRAGGING_NEW_LINE_POINT:
|
|
HitTestMakeSelection(mp);
|
|
// and fall through
|
|
case DRAGGING_NEW_POINT:
|
|
case DRAGGING_POINT: {
|
|
Entity *p = SS.GetEntity(pending.point);
|
|
if((p->type == Entity::POINT_N_ROT_TRANS) &&
|
|
(shiftDown || ctrlDown))
|
|
{
|
|
// These points also come with a rotation, which the user can
|
|
// edit by pressing shift or control.
|
|
Quaternion q = p->PointGetQuaternion();
|
|
Vector p3 = p->PointGetNum();
|
|
Point2d p2 = ProjectPoint(p3);
|
|
|
|
Vector u = q.RotationU(), v = q.RotationV();
|
|
if(ctrlDown) {
|
|
double d = mp.DistanceTo(p2);
|
|
if(d < 25) {
|
|
// Don't start dragging the position about the normal
|
|
// until we're a little ways out, to get a reasonable
|
|
// reference pos
|
|
orig.mouse = mp;
|
|
break;
|
|
}
|
|
double theta = atan2(orig.mouse.y-p2.y, orig.mouse.x-p2.x);
|
|
theta -= atan2(y-p2.y, x-p2.x);
|
|
|
|
Vector gn = projRight.Cross(projUp);
|
|
u = u.RotatedAbout(gn, -theta);
|
|
v = v.RotatedAbout(gn, -theta);
|
|
} else {
|
|
double dx = -(x - orig.mouse.x);
|
|
double dy = -(y - orig.mouse.y);
|
|
double s = 0.3*(PI/180); // degrees per pixel
|
|
u = u.RotatedAbout(orig.projUp, -s*dx);
|
|
u = u.RotatedAbout(orig.projRight, s*dy);
|
|
v = v.RotatedAbout(orig.projUp, -s*dx);
|
|
v = v.RotatedAbout(orig.projRight, s*dy);
|
|
}
|
|
q = Quaternion::From(u, v);
|
|
p->PointForceQuaternionTo(q);
|
|
// Let's rotate about the selected point; so fix up the
|
|
// translation so that that point didn't move.
|
|
p->PointForceTo(p3);
|
|
orig.mouse = mp;
|
|
} else {
|
|
UpdateDraggedPoint(pending.point, x, y);
|
|
HitTestMakeSelection(mp);
|
|
}
|
|
break;
|
|
}
|
|
case DRAGGING_NEW_CUBIC_POINT: {
|
|
UpdateDraggedPoint(pending.point, x, y);
|
|
HitTestMakeSelection(mp);
|
|
|
|
hRequest hr = pending.point.request();
|
|
Vector p0 = SS.GetEntity(hr.entity(1))->PointGetNum();
|
|
Vector p3 = SS.GetEntity(hr.entity(4))->PointGetNum();
|
|
Vector p1 = p0.ScaledBy(2.0/3).Plus(p3.ScaledBy(1.0/3));
|
|
SS.GetEntity(hr.entity(2))->PointForceTo(p1);
|
|
Vector p2 = p0.ScaledBy(1.0/3).Plus(p3.ScaledBy(2.0/3));
|
|
SS.GetEntity(hr.entity(3))->PointForceTo(p2);
|
|
break;
|
|
}
|
|
case DRAGGING_NEW_ARC_POINT: {
|
|
UpdateDraggedPoint(pending.point, x, y);
|
|
HitTestMakeSelection(mp);
|
|
|
|
hRequest hr = pending.point.request();
|
|
Vector ona = SS.GetEntity(hr.entity(2))->PointGetNum();
|
|
Vector onb = SS.GetEntity(hr.entity(3))->PointGetNum();
|
|
Vector center = (ona.Plus(onb)).ScaledBy(0.5);
|
|
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(center);
|
|
break;
|
|
}
|
|
case DRAGGING_NEW_RADIUS:
|
|
case DRAGGING_RADIUS: {
|
|
Entity *circle = SS.GetEntity(pending.circle);
|
|
Vector center = SS.GetEntity(circle->point[0])->PointGetNum();
|
|
Point2d c2 = ProjectPoint(center);
|
|
double r = c2.DistanceTo(mp)/scale;
|
|
SS.GetEntity(circle->distance)->DistanceForceTo(r);
|
|
break;
|
|
}
|
|
|
|
case DRAGGING_NORMAL: {
|
|
Entity *normal = SS.GetEntity(pending.normal);
|
|
Vector p = SS.GetEntity(normal->point[0])->PointGetNum();
|
|
Point2d p2 = ProjectPoint(p);
|
|
|
|
Quaternion q = normal->NormalGetNum();
|
|
Vector u = q.RotationU(), v = q.RotationV();
|
|
|
|
if(ctrlDown) {
|
|
double theta = atan2(orig.mouse.y-p2.y, orig.mouse.x-p2.x);
|
|
theta -= atan2(y-p2.y, x-p2.x);
|
|
|
|
Vector normal = orig.projRight.Cross(orig.projUp);
|
|
u = u.RotatedAbout(normal, -theta);
|
|
v = v.RotatedAbout(normal, -theta);
|
|
} else {
|
|
double dx = -(x - orig.mouse.x);
|
|
double dy = -(y - orig.mouse.y);
|
|
double s = 0.3*(PI/180); // degrees per pixel
|
|
u = u.RotatedAbout(orig.projUp, -s*dx);
|
|
u = u.RotatedAbout(orig.projRight, s*dy);
|
|
v = v.RotatedAbout(orig.projUp, -s*dx);
|
|
v = v.RotatedAbout(orig.projRight, s*dy);
|
|
}
|
|
orig.mouse = mp;
|
|
normal->NormalForceTo(Quaternion::From(u, v));
|
|
break;
|
|
}
|
|
|
|
default: oops();
|
|
}
|
|
if(pending.operation != 0 && pending.operation != DRAGGING_CONSTRAINT) {
|
|
SS.GenerateAll();
|
|
}
|
|
havePainted = false;
|
|
}
|
|
|
|
bool GraphicsWindow::Selection::Equals(Selection *b) {
|
|
if(entity.v != b->entity.v) return false;
|
|
if(constraint.v != b->constraint.v) return false;
|
|
return true;
|
|
}
|
|
bool GraphicsWindow::Selection::IsEmpty(void) {
|
|
if(entity.v) return false;
|
|
if(constraint.v) return false;
|
|
return true;
|
|
}
|
|
void GraphicsWindow::Selection::Clear(void) {
|
|
entity.v = constraint.v = 0;
|
|
emphasized = false;
|
|
}
|
|
void GraphicsWindow::Selection::Draw(void) {
|
|
Vector refp;
|
|
if(entity.v) {
|
|
Entity *e = SS.GetEntity(entity);
|
|
e->Draw(-1);
|
|
if(emphasized) refp = e->GetReferencePos();
|
|
}
|
|
if(constraint.v) {
|
|
Constraint *c = SS.GetConstraint(constraint);
|
|
c->Draw();
|
|
if(emphasized) refp = c->GetReferencePos();
|
|
}
|
|
if(emphasized && (constraint.v || entity.v)) {
|
|
double s = 0.501/SS.GW.scale;
|
|
Vector topLeft = SS.GW.projRight.ScaledBy(-SS.GW.width*s);
|
|
topLeft = topLeft.Plus(SS.GW.projUp.ScaledBy(SS.GW.height*s));
|
|
topLeft = topLeft.Minus(SS.GW.offset);
|
|
|
|
glLineWidth(40);
|
|
glColor4d(1.0, 1.0, 0, 0.2);
|
|
glBegin(GL_LINES);
|
|
glxVertex3v(topLeft);
|
|
glxVertex3v(refp);
|
|
glEnd();
|
|
glLineWidth(1);
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::ClearSuper(void) {
|
|
HideGraphicsEditControl();
|
|
ClearPending();
|
|
ClearSelection();
|
|
hover.Clear();
|
|
EnsureValidActives();
|
|
}
|
|
|
|
void GraphicsWindow::ClearPending(void) {
|
|
memset(&pending, 0, sizeof(pending));
|
|
}
|
|
|
|
void GraphicsWindow::HitTestMakeSelection(Point2d mp) {
|
|
int i;
|
|
double d, dmin = 1e12;
|
|
Selection s;
|
|
memset(&s, 0, sizeof(s));
|
|
|
|
// Do the entities
|
|
for(i = 0; i < SS.entity.n; i++) {
|
|
Entity *e = &(SS.entity.elem[i]);
|
|
// Don't hover whatever's being dragged.
|
|
if(e->h.request().v == pending.point.request().v) continue;
|
|
|
|
d = e->GetDistance(mp);
|
|
if(d < 10 && d < dmin) {
|
|
memset(&s, 0, sizeof(s));
|
|
s.entity = e->h;
|
|
dmin = d;
|
|
}
|
|
}
|
|
|
|
// Constraints
|
|
for(i = 0; i < SS.constraint.n; i++) {
|
|
d = SS.constraint.elem[i].GetDistance(mp);
|
|
if(d < 10 && d < dmin) {
|
|
memset(&s, 0, sizeof(s));
|
|
s.constraint = SS.constraint.elem[i].h;
|
|
dmin = d;
|
|
}
|
|
}
|
|
|
|
// Faces, from the triangle mesh; these are lowest priority
|
|
if(s.constraint.v == 0 && s.entity.v == 0 && showShaded && showFaces) {
|
|
SMesh *m = &((SS.GetGroup(activeGroup))->mesh);
|
|
DWORD v = m->FirstIntersectionWith(mp);
|
|
if(v) {
|
|
s.entity.v = v;
|
|
}
|
|
}
|
|
|
|
if(!s.Equals(&hover)) {
|
|
hover = s;
|
|
InvalidateGraphics();
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::ClearSelection(void) {
|
|
for(int i = 0; i < MAX_SELECTED; i++) {
|
|
selection[i].Clear();
|
|
}
|
|
SS.TW.Show();
|
|
InvalidateGraphics();
|
|
}
|
|
|
|
void GraphicsWindow::ClearNonexistentSelectionItems(void) {
|
|
bool change = false;
|
|
for(int i = 0; i < MAX_SELECTED; i++) {
|
|
Selection *s = &(selection[i]);
|
|
if(s->constraint.v && !(SS.constraint.FindByIdNoOops(s->constraint))) {
|
|
s->constraint.v = 0;
|
|
change = true;
|
|
}
|
|
if(s->entity.v && !(SS.entity.FindByIdNoOops(s->entity))) {
|
|
s->entity.v = 0;
|
|
change = true;
|
|
}
|
|
}
|
|
if(change) InvalidateGraphics();
|
|
}
|
|
|
|
void GraphicsWindow::GroupSelection(void) {
|
|
memset(&gs, 0, sizeof(gs));
|
|
int i;
|
|
for(i = 0; i < MAX_SELECTED; i++) {
|
|
Selection *s = &(selection[i]);
|
|
if(s->entity.v) {
|
|
(gs.n)++;
|
|
|
|
Entity *e = SS.entity.FindById(s->entity);
|
|
// A list of points, and a list of all entities that aren't points.
|
|
if(e->IsPoint()) {
|
|
gs.point[(gs.points)++] = s->entity;
|
|
} else {
|
|
gs.entity[(gs.entities)++] = s->entity;
|
|
}
|
|
|
|
// And an auxiliary list of normals, including normals from
|
|
// workplanes.
|
|
if(e->IsNormal()) {
|
|
gs.anyNormal[(gs.anyNormals)++] = s->entity;
|
|
} else if(e->IsWorkplane()) {
|
|
gs.anyNormal[(gs.anyNormals)++] = e->Normal()->h;
|
|
}
|
|
|
|
// And of vectors (i.e., stuff with a direction to constrain)
|
|
if(e->HasVector()) {
|
|
gs.vector[(gs.vectors)++] = s->entity;
|
|
}
|
|
|
|
// Faces (which are special, associated/drawn with triangles)
|
|
if(e->IsFace()) {
|
|
gs.face[(gs.faces)++] = s->entity;
|
|
}
|
|
|
|
// And some aux counts too
|
|
switch(e->type) {
|
|
case Entity::WORKPLANE: (gs.workplanes)++; break;
|
|
case Entity::LINE_SEGMENT: (gs.lineSegments)++; break;
|
|
|
|
case Entity::ARC_OF_CIRCLE:
|
|
case Entity::CIRCLE: (gs.circlesOrArcs)++; break;
|
|
}
|
|
}
|
|
if(s->constraint.v) {
|
|
gs.constraint[(gs.constraints)++] = s->constraint;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::MouseMiddleDown(double x, double y) {
|
|
if(GraphicsEditControlIsVisible()) return;
|
|
|
|
orig.offset = offset;
|
|
orig.projUp = projUp;
|
|
orig.projRight = projRight;
|
|
orig.mouse.x = x;
|
|
orig.mouse.y = y;
|
|
}
|
|
|
|
hRequest GraphicsWindow::AddRequest(int type) {
|
|
Request r;
|
|
memset(&r, 0, sizeof(r));
|
|
r.group = activeGroup;
|
|
Group *g = SS.GetGroup(activeGroup);
|
|
if(g->type == Group::DRAWING_3D || g->type == Group::DRAWING_WORKPLANE) {
|
|
r.construction = false;
|
|
} else {
|
|
r.construction = true;
|
|
}
|
|
r.workplane = ActiveWorkplane();
|
|
r.type = type;
|
|
SS.request.AddAndAssignId(&r);
|
|
|
|
// We must regenerate the parameters, so that the code that tries to
|
|
// place this request's entities where the mouse is can do so. But
|
|
// we mustn't try to solve until reasonable values have been supplied
|
|
// for these new parameters, or else we'll get a numerical blowup.
|
|
SS.GenerateAll(-1, -1);
|
|
|
|
return r.h;
|
|
}
|
|
|
|
bool GraphicsWindow::ConstrainPointByHovered(hEntity pt) {
|
|
if(!hover.entity.v) return false;
|
|
|
|
Entity *e = SS.GetEntity(hover.entity);
|
|
if(e->IsPoint()) {
|
|
Constraint::ConstrainCoincident(e->h, pt);
|
|
return true;
|
|
}
|
|
if(e->IsCircle()) {
|
|
Constraint::Constrain(Constraint::PT_ON_CIRCLE,
|
|
pt, Entity::NO_ENTITY, e->h);
|
|
return true;
|
|
}
|
|
if(e->type == Entity::LINE_SEGMENT) {
|
|
Constraint::Constrain(Constraint::PT_ON_LINE,
|
|
pt, Entity::NO_ENTITY, e->h);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void GraphicsWindow::MouseLeftDown(double mx, double my) {
|
|
if(GraphicsEditControlIsVisible()) return;
|
|
|
|
// Make sure the hover is up to date.
|
|
MouseMoved(mx, my, false, false, false, false, false);
|
|
orig.mouse.x = mx;
|
|
orig.mouse.y = my;
|
|
|
|
// The current mouse location
|
|
Vector v = offset.ScaledBy(-1);
|
|
v = v.Plus(projRight.ScaledBy(mx/scale));
|
|
v = v.Plus(projUp.ScaledBy(my/scale));
|
|
|
|
hRequest hr;
|
|
switch(pending.operation) {
|
|
case MNU_DATUM_POINT:
|
|
hr = AddRequest(Request::DATUM_POINT);
|
|
SS.GetEntity(hr.entity(0))->PointForceTo(v);
|
|
|
|
ClearSuper();
|
|
|
|
pending.operation = 0;
|
|
break;
|
|
|
|
case MNU_LINE_SEGMENT:
|
|
hr = AddRequest(Request::LINE_SEGMENT);
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(v);
|
|
ConstrainPointByHovered(hr.entity(1));
|
|
|
|
ClearSuper();
|
|
|
|
pending.operation = DRAGGING_NEW_LINE_POINT;
|
|
pending.point = hr.entity(2);
|
|
pending.description = "click to place next point of line";
|
|
SS.GetEntity(pending.point)->PointForceTo(v);
|
|
break;
|
|
|
|
case MNU_RECTANGLE: {
|
|
if(!SS.GW.LockedInWorkplane()) {
|
|
Error("Can't draw rectangle in 3d; select a workplane first.");
|
|
break;
|
|
}
|
|
hRequest lns[4];
|
|
int i;
|
|
for(i = 0; i < 4; i++) {
|
|
lns[i] = AddRequest(Request::LINE_SEGMENT);
|
|
}
|
|
for(i = 0; i < 4; i++) {
|
|
Constraint::ConstrainCoincident(
|
|
lns[i].entity(1), lns[(i+1)%4].entity(2));
|
|
SS.GetEntity(lns[i].entity(1))->PointForceTo(v);
|
|
SS.GetEntity(lns[i].entity(2))->PointForceTo(v);
|
|
}
|
|
for(i = 0; i < 4; i++) {
|
|
Constraint::Constrain(
|
|
(i % 2) ? Constraint::HORIZONTAL : Constraint::VERTICAL,
|
|
Entity::NO_ENTITY, Entity::NO_ENTITY,
|
|
lns[i].entity(0));
|
|
}
|
|
ConstrainPointByHovered(lns[2].entity(1));
|
|
|
|
pending.operation = DRAGGING_NEW_POINT;
|
|
pending.point = lns[1].entity(2);
|
|
pending.description = "click to place other corner of rectangle";
|
|
break;
|
|
}
|
|
case MNU_CIRCLE:
|
|
hr = AddRequest(Request::CIRCLE);
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(32))->NormalForceTo(
|
|
Quaternion::From(SS.GW.projRight, SS.GW.projUp));
|
|
ConstrainPointByHovered(hr.entity(1));
|
|
|
|
ClearSuper();
|
|
|
|
pending.operation = DRAGGING_NEW_RADIUS;
|
|
pending.circle = hr.entity(0);
|
|
pending.description = "click to set radius";
|
|
SS.GetParam(hr.param(0))->val = 0;
|
|
break;
|
|
|
|
case MNU_ARC:
|
|
if(!SS.GW.LockedInWorkplane()) {
|
|
Error("Can't draw arc in 3d; select a workplane first.");
|
|
ClearPending();
|
|
break;
|
|
}
|
|
hr = AddRequest(Request::ARC_OF_CIRCLE);
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(2))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(3))->PointForceTo(v);
|
|
ConstrainPointByHovered(hr.entity(2));
|
|
|
|
ClearSuper();
|
|
|
|
pending.operation = DRAGGING_NEW_ARC_POINT;
|
|
pending.point = hr.entity(3);
|
|
pending.description = "click to place point";
|
|
break;
|
|
|
|
case MNU_CUBIC:
|
|
hr = AddRequest(Request::CUBIC);
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(2))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(3))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(4))->PointForceTo(v);
|
|
ConstrainPointByHovered(hr.entity(1));
|
|
|
|
ClearSuper();
|
|
|
|
pending.operation = DRAGGING_NEW_CUBIC_POINT;
|
|
pending.point = hr.entity(4);
|
|
pending.description = "click to place next point of cubic";
|
|
break;
|
|
|
|
case MNU_WORKPLANE:
|
|
hr = AddRequest(Request::WORKPLANE);
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(32))->NormalForceTo(
|
|
Quaternion::From(SS.GW.projRight, SS.GW.projUp));
|
|
ConstrainPointByHovered(hr.entity(1));
|
|
|
|
ClearSuper();
|
|
break;
|
|
|
|
case DRAGGING_RADIUS:
|
|
case DRAGGING_NEW_POINT:
|
|
// The MouseMoved event has already dragged it as desired.
|
|
ClearPending();
|
|
break;
|
|
|
|
case DRAGGING_NEW_ARC_POINT:
|
|
case DRAGGING_NEW_CUBIC_POINT:
|
|
ConstrainPointByHovered(pending.point);
|
|
ClearPending();
|
|
break;
|
|
|
|
case DRAGGING_NEW_LINE_POINT: {
|
|
if(ConstrainPointByHovered(pending.point)) {
|
|
ClearPending();
|
|
break;
|
|
}
|
|
// Create a new line segment, so that we continue drawing.
|
|
hRequest hr = AddRequest(Request::LINE_SEGMENT);
|
|
SS.GetEntity(hr.entity(1))->PointForceTo(v);
|
|
SS.GetEntity(hr.entity(2))->PointForceTo(v);
|
|
|
|
// Constrain the line segments to share an endpoint
|
|
Constraint::ConstrainCoincident(pending.point, hr.entity(1));
|
|
|
|
// And drag an endpoint of the new line segment
|
|
pending.operation = DRAGGING_NEW_LINE_POINT;
|
|
pending.point = hr.entity(2);
|
|
pending.description = "click to place next point of next line";
|
|
|
|
break;
|
|
}
|
|
|
|
case 0:
|
|
default: {
|
|
ClearPending();
|
|
|
|
if(hover.IsEmpty()) break;
|
|
|
|
// If an item is hovered, then by clicking on it, we toggle its
|
|
// selection state.
|
|
int i;
|
|
for(i = 0; i < MAX_SELECTED; i++) {
|
|
if(selection[i].Equals(&hover)) {
|
|
selection[i].Clear();
|
|
break;
|
|
}
|
|
}
|
|
if(i != MAX_SELECTED) break;
|
|
|
|
if(hover.entity.v != 0 && SS.GetEntity(hover.entity)->IsFace()) {
|
|
// In the interest of speed for the triangle drawing code,
|
|
// only two faces may be selected at a time.
|
|
int c = 0;
|
|
for(i = 0; i < MAX_SELECTED; i++) {
|
|
hEntity he = selection[i].entity;
|
|
if(he.v != 0 && SS.GetEntity(he)->IsFace()) {
|
|
c++;
|
|
if(c >= 2) selection[i].Clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < MAX_SELECTED; i++) {
|
|
if(selection[i].IsEmpty()) {
|
|
selection[i] = hover;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
SS.TW.Show();
|
|
InvalidateGraphics();
|
|
}
|
|
|
|
void GraphicsWindow::MouseLeftUp(double mx, double my) {
|
|
switch(pending.operation) {
|
|
case DRAGGING_POINT:
|
|
case DRAGGING_CONSTRAINT:
|
|
case DRAGGING_NORMAL:
|
|
case DRAGGING_RADIUS:
|
|
ClearPending();
|
|
break;
|
|
|
|
default:
|
|
break; // do nothing
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::MouseLeftDoubleClick(double mx, double my) {
|
|
if(GraphicsEditControlIsVisible()) return;
|
|
|
|
if(hover.constraint.v) {
|
|
constraintBeingEdited = hover.constraint;
|
|
ClearSuper();
|
|
|
|
Constraint *c = SS.GetConstraint(constraintBeingEdited);
|
|
Vector p3 = c->GetLabelPos();
|
|
Point2d p2 = ProjectPoint(p3);
|
|
ShowGraphicsEditControl((int)p2.x, (int)p2.y, c->exprA->Print());
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::EditControlDone(char *s) {
|
|
Expr *e = Expr::From(s);
|
|
if(e) {
|
|
Constraint *c = SS.GetConstraint(constraintBeingEdited);
|
|
Expr::FreeKeep(&(c->exprA));
|
|
c->exprA = e->DeepCopyKeep();
|
|
HideGraphicsEditControl();
|
|
SS.GenerateAll();
|
|
} else {
|
|
Error("Not a valid number or expression: '%s'", s);
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::MouseScroll(double x, double y, int delta) {
|
|
double offsetRight = offset.Dot(projRight);
|
|
double offsetUp = offset.Dot(projUp);
|
|
|
|
double righti = x/scale - offsetRight;
|
|
double upi = y/scale - offsetUp;
|
|
|
|
if(delta > 0) {
|
|
scale *= 1.2;
|
|
} else {
|
|
scale /= 1.2;
|
|
}
|
|
|
|
double rightf = x/scale - offsetRight;
|
|
double upf = y/scale - offsetUp;
|
|
|
|
offset = offset.Plus(projRight.ScaledBy(rightf - righti));
|
|
offset = offset.Plus(projUp.ScaledBy(upf - upi));
|
|
|
|
InvalidateGraphics();
|
|
}
|
|
|
|
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;
|
|
|
|
SS.GenerateAll();
|
|
InvalidateGraphics();
|
|
SS.TW.Show();
|
|
}
|
|
|
|
Vector GraphicsWindow::VectorFromProjs(double right, double up, double fwd) {
|
|
Vector n = projRight.Cross(projUp);
|
|
Vector r = offset.ScaledBy(-1);
|
|
r = r.Plus(projRight.ScaledBy(right));
|
|
r = r.Plus(projUp.ScaledBy(up));
|
|
r = r.Plus(n.ScaledBy(fwd));
|
|
return r;
|
|
}
|
|
|
|
void GraphicsWindow::Paint(int w, int h) {
|
|
havePainted = true;
|
|
width = w; height = h;
|
|
|
|
glViewport(0, 0, w, h);
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
|
|
glScaled(scale*2.0/w, scale*2.0/h, scale*1.0/30000);
|
|
|
|
double tx = projRight.Dot(offset);
|
|
double ty = projUp.Dot(offset);
|
|
Vector n = projUp.Cross(projRight);
|
|
double tz = n.Dot(offset);
|
|
double mat[16];
|
|
MakeMatrix(mat, projRight.x, projRight.y, projRight.z, tx,
|
|
projUp.x, projUp.y, projUp.z, ty,
|
|
n.x, n.y, n.z, tz,
|
|
0, 0, 0, 1);
|
|
glMultMatrixd(mat);
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
glShadeModel(GL_SMOOTH);
|
|
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glEnable(GL_BLEND);
|
|
glEnable(GL_LINE_SMOOTH);
|
|
glEnable(GL_POLYGON_OFFSET_LINE);
|
|
glEnable(GL_POLYGON_OFFSET_FILL);
|
|
glEnable(GL_DEPTH_TEST);
|
|
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
|
|
glEnable(GL_NORMALIZE);
|
|
|
|
// At the same depth, we want later lines drawn over earlier.
|
|
glDepthFunc(GL_LEQUAL);
|
|
|
|
glClearDepth(1.0);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
Vector light = VectorFromProjs(-0.49*w/scale, 0.49*h/scale, 0);
|
|
GLfloat lightPos[4] =
|
|
{ (GLfloat)light.x, (GLfloat)light.y, (GLfloat)light.z, 0 };
|
|
glLightfv(GL_LIGHT0, GL_POSITION, lightPos);
|
|
glEnable(GL_LIGHT0);
|
|
|
|
glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, 1);
|
|
GLfloat ambient[4] = { 0.4f, 0.4f, 0.4f, 1.0f };
|
|
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
|
|
|
|
glxUnlockColor();
|
|
|
|
int i, a;
|
|
// Draw the groups; this fills the polygons in a drawing group, and
|
|
// draws the solid mesh.
|
|
(SS.GetGroup(activeGroup))->Draw();
|
|
|
|
// First, draw the entire scene. We don't necessarily want to draw
|
|
// things with normal z-buffering behaviour; e.g. we always want to
|
|
// draw a line segment in front of a reference. So we have three draw
|
|
// levels, and only the first gets normal depth testing.
|
|
for(a = 0; a <= 2; a++) {
|
|
// Three levels: 0 least prominent (e.g. a reference workplane), 1 is
|
|
// middle (e.g. line segment), 2 is always in front (e.g. point).
|
|
if(a >= 1 && showHdnLines) glDisable(GL_DEPTH_TEST);
|
|
for(i = 0; i < SS.entity.n; i++) {
|
|
SS.entity.elem[i].Draw(a);
|
|
}
|
|
}
|
|
|
|
glDisable(GL_DEPTH_TEST);
|
|
// Draw the constraints
|
|
for(i = 0; i < SS.constraint.n; i++) {
|
|
SS.constraint.elem[i].Draw();
|
|
}
|
|
|
|
// Then redraw whatever the mouse is hovering over, highlighted.
|
|
glDisable(GL_DEPTH_TEST);
|
|
glxLockColorTo(1, 1, 0);
|
|
hover.Draw();
|
|
|
|
// And finally draw the selection, same mechanism.
|
|
glxLockColorTo(1, 0, 0);
|
|
for(i = 0; i < MAX_SELECTED; i++) {
|
|
selection[i].Draw();
|
|
}
|
|
}
|
|
|