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873811d865
solvespace/graphicswin.cpp
Daniel Richard G 873811d865 Preliminary changes for FLTK support 
* Added "Show Menu Bar" and "Full Screen" menu items, which will be
  implemented in the FLTK interface. These are currently prevented from
  appearing in the Win32 interface by the HAVE_FLTK and
  HAVE_FLTK_FULLSCREEN macros.

* Moved the "Show Text Window" down below the "Show Toolbar" item, so that
  "Show Menu Bar", "Show Toolbar" and "Show Text Window" are in the same
  vertical order as their corresponding UI elements typically take on

* Added new platform-dependent routines to back the new menu items:

    void ToggleMenuBar(void);
    bool MenuBarIsVisible(void);
    void ToggleFullScreen(void);
    bool FullScreenIsActive(void);

  These are stubs in the Win32 code.

* Fleshed out the system header #includes in solvespace.h, and moved them
  to the top of the file per convention

* Rewrote the file dialog selection patterns in terms of macros that allow
  them to expand to either the FLTK or Windows formats

* Don't use __stdcall in SSGL_CALLBACK, and make SSGL_CALLBACK 'extern "C"'
  as OpenGL usually expects function pointers to point to C functions
2013-10-28 00:43:38 -04:00

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//-----------------------------------------------------------------------------
// 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 (&SolveSpace::MenuFile)
#define mGrp (&Group::MenuGroup)
#define mAna (&SolveSpace::MenuAnalyze)
#define mHelp (&SolveSpace::MenuHelp)
#define DEL DELETE_KEY
#define ESC ESCAPE_KEY
#define S SHIFT_MASK
#define C CTRL_MASK
#define F(k) (FUNCTION_KEY_BASE+(k))
const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
//level
// label id accel fn
{ 0, "&File", 0, 0, NULL },
{ 1, "&New", MNU_NEW, C|'N', mFile },
{ 1, "&Open...", MNU_OPEN, C|'O', mFile },
{ 1, "Open &Recent", MNU_OPEN_RECENT, 0, mFile },
{ 1, "&Save", MNU_SAVE, C|'S', 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, C|'Q', mFile },
{ 0, "&Edit", 0, 0, NULL },
{ 1, "&Undo", MNU_UNDO, C|'Z', mEdit },
{ 1, "&Redo", MNU_REDO, C|'Y', mEdit },
{ 1, "Re&generate All", MNU_REGEN_ALL, ' ', mEdit },
{ 1, NULL, 0, 0, NULL },
{ 1, "Snap Selection to &Grid", MNU_SNAP_TO_GRID, '.', mEdit },
{ 1, "Rotate Imported &90\260", MNU_ROTATE_90, '9', mEdit },
{ 1, NULL, 0, 0, NULL },
{ 1, "Cu&t", MNU_CUT, C|'X', mClip },
{ 1, "&Copy", MNU_COPY, C|'C', mClip },
{ 1, "&Paste", MNU_PASTE, C|'V', mClip },
{ 1, "Paste &Transformed...", MNU_PASTE_TRANSFORM,C|'T', mClip },
{ 1, "&Delete", MNU_DELETE, DEL, mClip },
{ 1, NULL, 0, 0, NULL },
{ 1, "Select &Edge Chain", MNU_SELECT_CHAIN, C|'E', mEdit },
{ 1, "Select &All", MNU_SELECT_ALL, C|'A', mEdit },
{ 1, "&Unselect All", MNU_UNSELECT_ALL, ESC, mEdit },
{ 0, "&View", 0, 0, NULL },
{ 1, "Zoom &In", MNU_ZOOM_IN, '+', mView },
{ 1, "Zoom &Out", MNU_ZOOM_OUT, '-', mView },
{ 1, "Zoom To &Fit", MNU_ZOOM_TO_FIT, 'F', mView },
{ 1, NULL, 0, 0, NULL },
{ 1, "Align View to &Workplane", MNU_ONTO_WORKPLANE, 'W', mView },
{ 1, "Nearest &Ortho View", MNU_NEAREST_ORTHO, F(2), mView },
{ 1, "Nearest &Isometric View", MNU_NEAREST_ISO, F(3), mView },
{ 1, "&Center View At Point", MNU_CENTER_VIEW, F(4), mView },
{ 1, NULL, 0, 0, NULL },
{ 1, "Show Snap &Grid", MNU_SHOW_GRID, '>', mView },
{ 1, "Use &Perspective Projection", MNU_PERSPECTIVE_PROJ,'`', mView },
{ 1, NULL, 0, 0, NULL },
#ifdef HAVE_FLTK
{ 1, "Show Menu &Bar", MNU_SHOW_MENU_BAR, F(12), mView },
#endif
{ 1, "Show &Toolbar", MNU_SHOW_TOOLBAR, 0, mView },
{ 1, "Show Text &Window", MNU_SHOW_TEXT_WND, '\t', mView },
{ 1, NULL, 0, 0, NULL },
{ 1, "Dimensions in &Inches", MNU_UNITS_INCHES, 0, mView },
{ 1, "Dimensions in &Millimeters", MNU_UNITS_MM, 0, mView },
#ifdef HAVE_FLTK_FULLSCREEN
{ 1, NULL, 0, 0, NULL },
{ 1, "&Full Screen", MNU_FULL_SCREEN, F(11), mView },
#endif
{ 0, "&New Group", 0, 0, NULL },
{ 1, "Sketch In &3d", MNU_GROUP_3D, S|'3', mGrp },
{ 1, "Sketch In New &Workplane", MNU_GROUP_WRKPL, S|'W', mGrp },
{ 1, NULL, 0, 0, NULL },
{ 1, "Step &Translating", MNU_GROUP_TRANS, S|'T', mGrp },
{ 1, "Step &Rotating", MNU_GROUP_ROT, S|'R', mGrp },
{ 1, NULL, 0, 0, NULL },
{ 1, "E&xtrude", MNU_GROUP_EXTRUDE, S|'X', mGrp },
{ 1, "&Lathe", MNU_GROUP_LATHE, S|'L', mGrp },
{ 1, NULL, 0, 0, NULL },
{ 1, "Import / Assemble...", MNU_GROUP_IMPORT, S|'I', mGrp },
{ 1, "Import Recent", MNU_GROUP_RECENT, 0, mGrp },
{ 0, "&Sketch", 0, 0, NULL },
{ 1, "In &Workplane", MNU_SEL_WORKPLANE, '2', mReq },
{ 1, "Anywhere In &3d", MNU_FREE_IN_3D, '3', mReq },
{ 1, NULL, 0, 0, NULL },
{ 1, "Datum &Point", MNU_DATUM_POINT, 'P', mReq },
{ 1, "&Workplane", MNU_WORKPLANE, 0, mReq },
{ 1, NULL, 0, 0, NULL },
{ 1, "Line &Segment", MNU_LINE_SEGMENT, 'S', mReq },
{ 1, "&Rectangle", MNU_RECTANGLE, 'R', mReq },
{ 1, "&Circle", MNU_CIRCLE, 'C', mReq },
{ 1, "&Arc of a Circle", MNU_ARC, 'A', mReq },
{ 1, "&Bezier Cubic Spline", MNU_CUBIC, 'B', mReq },
{ 1, NULL, 0, 0, NULL },
{ 1, "&Text in TrueType Font", MNU_TTF_TEXT, 'T', mReq },
{ 1, NULL, 0, 0, NULL },
{ 1, "To&ggle Construction", MNU_CONSTRUCTION, 'G', mReq },
{ 1, "Tangent &Arc at Point", MNU_TANGENT_ARC, S|'A', mReq },
{ 1, "Split Curves at &Intersection", MNU_SPLIT_CURVES, 'I', mReq },
{ 0, "&Constrain", 0, 0, NULL },
{ 1, "&Distance / Diameter", MNU_DISTANCE_DIA, 'D', mCon },
{ 1, "A&ngle", MNU_ANGLE, 'N', mCon },
{ 1, "Other S&upplementary Angle", MNU_OTHER_ANGLE, 'U', mCon },
{ 1, "Toggle R&eference Dim", MNU_REFERENCE, 'E', mCon },
{ 1, NULL, 0, 0, NULL },
{ 1, "&Horizontal", MNU_HORIZONTAL, 'H', mCon },
{ 1, "&Vertical", MNU_VERTICAL, 'V', mCon },
{ 1, NULL, 0, 0, NULL },
{ 1, "&On Point / Curve / Plane", MNU_ON_ENTITY, 'O', mCon },
{ 1, "E&qual Length / Radius / Angle", MNU_EQUAL, 'Q', mCon },
{ 1, "Length Ra&tio", MNU_RATIO, 'Z', mCon },
{ 1, "At &Midpoint", MNU_AT_MIDPOINT, 'M', mCon },
{ 1, "S&ymmetric", MNU_SYMMETRIC, 'Y', mCon },
{ 1, "Para&llel / Tangent", MNU_PARALLEL, 'L', mCon },
{ 1, "&Perpendicular", MNU_PERPENDICULAR, '[', mCon },
{ 1, "Same Orient&ation", MNU_ORIENTED_SAME, 'X', mCon },
{ 1, "Lock Point Where &Dragged", MNU_WHERE_DRAGGED, ']', mCon },
{ 1, NULL, 0, 0, NULL },
{ 1, "Comment", MNU_COMMENT, ';', mCon },
{ 0, "&Analyze", 0, 0, NULL },
{ 1, "Measure &Volume", MNU_VOLUME, C|S|'V',mAna },
{ 1, "Measure &Area", MNU_AREA, C|S|'A',mAna },
{ 1, "Show &Interfering Parts", MNU_INTERFERENCE, C|S|'I',mAna },
{ 1, "Show &Naked Edges", MNU_NAKED_EDGES, C|S|'N',mAna },
{ 1, NULL, 0, 0, NULL },
{ 1, "Show Degrees of &Freedom", MNU_SHOW_DOF, C|S|'F',mAna },
{ 1, NULL, 0, 0, NULL },
{ 1, "&Trace Point", MNU_TRACE_PT, C|S|'T',mAna },
{ 1, "&Stop Tracing...", MNU_STOP_TRACING, C|S|'S',mAna },
{ 1, "Step &Dimension...", MNU_STEP_DIM, C|S|'D',mAna },
{ 0, "&Help", 0, 0, NULL },
{ 1, "&Website / Manual", MNU_WEBSITE, 0, mHelp },
{ 1, "&About", MNU_ABOUT, 0, mHelp },
{ -1, 0, 0, 0, 0 }
};
#undef DEL
#undef ESC
#undef S
#undef C
#undef F
bool MakeAcceleratorLabel(int accel, char *out) {
if(!accel) {
out[0] = '\0';
return false;
}
const char *ctrl = accel & GraphicsWindow::CTRL_MASK ? "Ctrl+" : "";
const char *shift = accel & GraphicsWindow::SHIFT_MASK ? "Shift+" : "";
char buf[8];
buf[0] = (char)(accel & 0xff);
buf[1] = '\0';
if(accel >= GraphicsWindow::FUNCTION_KEY_BASE + 1 &&
accel <= GraphicsWindow::FUNCTION_KEY_BASE + 12) {
sprintf(buf, "F%d", accel - GraphicsWindow::FUNCTION_KEY_BASE);
}
const char *key = buf;
switch(accel) {
case '\t': key = "Tab"; break;
case ' ': key = "Space"; break;
case GraphicsWindow::ESCAPE_KEY: key = "Esc"; break;
case GraphicsWindow::DELETE_KEY: key = "Del"; break;
}
if(key[0] < '!' || key[0] > '~') oops();
if(key[0] >= 'a' && key[0] <= 'z') oops();
sprintf(out, "%s%s%s", ctrl, shift, key);
return true;
}
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.
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;
int32_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.later.showTW = true;
}
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(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, 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;
SS.later.showTW = true;
break;
case MNU_ZOOM_OUT:
SS.GW.scale /= 1.2;
SS.later.showTW = true;
break;
case MNU_ZOOM_TO_FIT:
SS.GW.ZoomToFit(false);
SS.later.showTW = true;
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_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 MNU_ONTO_WORKPLANE:
if(!SS.GW.LockedInWorkplane()) {
Error("No workplane is active.");
break;
}
SS.GW.AnimateOntoWorkplane();
SS.GW.ClearSuper();
SS.later.showTW = true;
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_MENU_BAR:
ToggleMenuBar();
SS.GW.EnsureValidActives();
InvalidateGraphics();
break;
case MNU_SHOW_TOOLBAR:
SS.showToolbar = !SS.showToolbar;
SS.GW.EnsureValidActives();
InvalidateGraphics();
break;
case MNU_SHOW_TEXT_WND:
SS.GW.showTextWindow = !SS.GW.showTextWindow;
SS.GW.EnsureValidActives();
break;
case MNU_UNITS_INCHES:
SS.viewUnits = SolveSpace::UNIT_INCHES;
SS.later.showTW = true;
SS.GW.EnsureValidActives();
break;
case MNU_UNITS_MM:
SS.viewUnits = SolveSpace::UNIT_MM;
SS.later.showTW = true;
SS.GW.EnsureValidActives();
break;
case MNU_FULL_SCREEN:
ToggleFullScreen();
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();
RadioMenuById(MNU_FREE_IN_3D, !locked);
RadioMenuById(MNU_SEL_WORKPLANE, locked);
SS.UndoEnableMenus();
switch(SS.viewUnits) {
case SolveSpace::UNIT_MM:
case SolveSpace::UNIT_INCHES:
break;
default:
SS.viewUnits = SolveSpace::UNIT_MM;
break;
}
RadioMenuById(MNU_UNITS_MM, SS.viewUnits == SolveSpace::UNIT_MM);
RadioMenuById(MNU_UNITS_INCHES, SS.viewUnits == SolveSpace::UNIT_INCHES);
ShowTextWindow(SS.GW.showTextWindow);
CheckMenuById(MNU_SHOW_TEXT_WND, SS.GW.showTextWindow);
#ifdef HAVE_FLTK
CheckMenuById(MNU_SHOW_MENU_BAR, MenuBarIsVisible());
#endif
CheckMenuById(MNU_SHOW_TOOLBAR, SS.showToolbar);
CheckMenuById(MNU_PERSPECTIVE_PROJ, SS.usePerspectiveProj);
CheckMenuById(MNU_SHOW_GRID, SS.GW.showSnapGrid);
#ifdef HAVE_FLTK_FULLSCREEN
CheckMenuById(MNU_FULL_SCREEN, FullScreenIsActive());
#endif
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();
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(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();
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;
}
break;
case MNU_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.later.showTW = true;
break;
}
case MNU_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<Selection> *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.later.showTW = true;
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.points == 0 && SS.GW.gs.comments == 0) {
Error("Can't snap these items to grid; select points or "
"text comments. To snap a line, select its endpoints.");
break;
}
SS.UndoRemember();
List<Selection> *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);
if(c->type != Constraint::COMMENT) continue;
c->disp.offset = SS.GW.SnapToGrid(c->disp.offset);
}
}
// Regenerate, with these points marked as dragged so that they
// get placed as close as possible to our snap grid.
SS.GenerateAll();
SS.GW.ClearPending();
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) {
const 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);
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.later.showTW = true;
break;
}
case MNU_FREE_IN_3D:
SS.GW.SetWorkplaneFreeIn3d();
SS.GW.EnsureValidActives();
SS.later.showTW = true;
InvalidateGraphics();
break;
case MNU_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.later.showTW = true;
}
break;
case MNU_ARC: s = "click point on arc (draws anti-clockwise)"; goto c;
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.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();
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(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;
// We might need to regenerate the mesh and edge list, since the edges
// wouldn't have been generated if they were previously hidden.
if(showEdges) (SK.GetGroup(activeGroup))->displayDirty = true;
SS.GenerateAll();
InvalidateGraphics();
SS.later.showTW = true;
}
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