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Copy pathmouse.cpp
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1513 lines (1321 loc) · 52.7 KB
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//-----------------------------------------------------------------------------
// Anything relating to mouse, keyboard, or 6-DOF mouse input.
//
// Copyright 2008-2013 Jonathan Westhues.
//-----------------------------------------------------------------------------
#include "solvespace.h"
void GraphicsWindow::UpdateDraggedPoint(hEntity hp, double mx, double my) {
Entity *p = SK.GetEntity(hp);
Vector pos = p->PointGetNum();
UpdateDraggedNum(&pos, mx, my);
p->PointForceTo(pos);
}
void GraphicsWindow::UpdateDraggedNum(Vector *pos, double mx, double my) {
*pos = pos->Plus(projRight.ScaledBy((mx - orig.mouse.x)/scale));
*pos = pos->Plus(projUp.ScaledBy((my - orig.mouse.y)/scale));
}
void GraphicsWindow::AddPointToDraggedList(hEntity hp) {
Entity *p = SK.GetEntity(hp);
// If an entity and its points are both selected, then its points could
// end up in the list twice. This would be bad, because it would move
// twice as far as the mouse pointer...
List<hEntity> *lhe = &(pending.points);
for(hEntity *hee = lhe->First(); hee; hee = lhe->NextAfter(hee)) {
if(hee->v == hp.v) {
// Exact same point.
return;
}
Entity *pe = SK.GetEntity(*hee);
if(pe->type == p->type &&
pe->type != Entity::POINT_IN_2D &&
pe->type != Entity::POINT_IN_3D &&
pe->group.v == p->group.v)
{
// Transform-type point, from the same group. So it handles the
// same unknowns.
return;
}
}
pending.points.Add(&hp);
}
void GraphicsWindow::StartDraggingByEntity(hEntity he) {
Entity *e = SK.GetEntity(he);
if(e->IsPoint()) {
AddPointToDraggedList(e->h);
} else if(e->type == Entity::LINE_SEGMENT ||
e->type == Entity::ARC_OF_CIRCLE ||
e->type == Entity::CUBIC ||
e->type == Entity::CUBIC_PERIODIC ||
e->type == Entity::CIRCLE ||
e->type == Entity::TTF_TEXT)
{
int pts;
EntReqTable::GetEntityInfo(e->type, e->extraPoints,
NULL, &pts, NULL, NULL);
for(int i = 0; i < pts; i++) {
AddPointToDraggedList(e->point[i]);
}
}
}
void GraphicsWindow::StartDraggingBySelection(void) {
List<Selection> *ls = &(selection);
for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) {
if(!s->entity.v) continue;
StartDraggingByEntity(s->entity);
}
// The user might select a point, and then click it again to start
// dragging; but the point just got unselected by that click. So drag
// the hovered item too, and they'll always have it.
if(hover.entity.v) StartDraggingByEntity(hover.entity);
}
void GraphicsWindow::MouseMoved(double x, double y, bool leftDown,
bool middleDown, bool rightDown, bool shiftDown, bool ctrlDown)
{
if(GraphicsEditControlIsVisible()) return;
if(context.active) return;
SS.extraLine.draw = false;
if(!orig.mouseDown) {
// If someone drags the mouse into our window with the left button
// already depressed, then we don't have our starting point; so
// don't try.
leftDown = false;
}
if(rightDown) {
middleDown = true;
shiftDown = !shiftDown;
}
if(SS.showToolbar) {
if(ToolbarMouseMoved((int)x, (int)y)) {
hover.Clear();
return;
}
}
if(!leftDown && (pending.operation == DRAGGING_POINTS ||
pending.operation == DRAGGING_MARQUEE))
{
ClearPending();
InvalidateGraphics();
}
Point2d mp = Point2d::From(x, y);
currentMousePosition = mp;
if(rightDown && orig.mouse.DistanceTo(mp) < 5 && !orig.startedMoving) {
// Avoid accidentally panning (or rotating if shift is down) if the
// user wants a context menu.
return;
}
orig.startedMoving = true;
// If the middle button is down, then mouse movement is used to pan and
// rotate our view. This wins over everything else.
if(middleDown) {
hover.Clear();
double dx = (x - orig.mouse.x) / scale;
double dy = (y - orig.mouse.y) / scale;
if(!(shiftDown || ctrlDown)) {
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();
} else if(ctrlDown) {
double theta = atan2(orig.mouse.y, orig.mouse.x);
theta -= atan2(y, x);
SS.extraLine.draw = true;
SS.extraLine.ptA = UnProjectPoint(Point2d::From(0, 0));
SS.extraLine.ptB = UnProjectPoint(mp);
Vector normal = orig.projRight.Cross(orig.projUp);
projRight = orig.projRight.RotatedAbout(normal, theta);
projUp = orig.projUp.RotatedAbout(normal, theta);
NormalizeProjectionVectors();
} else {
offset.x = orig.offset.x + dx*projRight.x + dy*projUp.x;
offset.y = orig.offset.y + dx*projRight.y + dy*projUp.y;
offset.z = orig.offset.z + dx*projRight.z + dy*projUp.z;
}
orig.projRight = projRight;
orig.projUp = projUp;
orig.offset = offset;
orig.mouse.x = x;
orig.mouse.y = y;
if(SS.TW.shown.screen == TextWindow::SCREEN_EDIT_VIEW) {
if(havePainted) {
SS.ScheduleShowTW();
}
}
InvalidateGraphics();
havePainted = false;
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) {
Entity *e = NULL;
if(hover.entity.v) e = SK.GetEntity(hover.entity);
if(e && e->type != Entity::WORKPLANE) {
Entity *e = SK.GetEntity(hover.entity);
if(e->type == Entity::CIRCLE && selection.n <= 1) {
// 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(!hoverWasSelectedOnMousedown) {
// The user clicked an unselected entity, which
// means they're dragging just the hovered thing,
// not the full selection. So clear all the selection
// except that entity.
ClearSelection();
MakeSelected(e->h);
}
StartDraggingBySelection();
if(!hoverWasSelectedOnMousedown) {
// And then clear the selection again, since they
// probably didn't want that selected if they just
// were dragging it.
ClearSelection();
}
hover.Clear();
pending.operation = DRAGGING_POINTS;
}
} else if(hover.constraint.v &&
SK.GetConstraint(hover.constraint)->HasLabel())
{
ClearSelection();
pending.constraint = hover.constraint;
pending.operation = DRAGGING_CONSTRAINT;
}
if(pending.operation != 0) {
// We just started a drag, so remember for the undo before
// the drag changes anything.
SS.UndoRemember();
} else {
if(!hover.constraint.v) {
// That's just marquee selection, which should not cause
// an undo remember.
if(dm > 10) {
if(hover.entity.v) {
// Avoid accidentally selecting workplanes when
// starting drags.
MakeUnselected(hover.entity, false);
hover.Clear();
}
pending.operation = DRAGGING_MARQUEE;
orig.marqueePoint =
UnProjectPoint(orig.mouseOnButtonDown);
}
}
}
} 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) {
// Hit testing can potentially take a lot of time.
// If we haven't painted since last time we highlighted
// something, don't hit test again, since this just causes
// a lag.
if(!havePainted) return;
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) {
if(pending.operation == DRAGGING_POINTS && ctrlDown) {
SS.extraLine.ptA = UnProjectPoint(orig.mouseOnButtonDown);
SS.extraLine.ptB = UnProjectPoint(mp);
SS.extraLine.draw = true;
}
return;
}
havePainted = false;
switch(pending.operation) {
case DRAGGING_CONSTRAINT: {
Constraint *c = SK.constraint.FindById(pending.constraint);
UpdateDraggedNum(&(c->disp.offset), x, y);
orig.mouse = mp;
InvalidateGraphics();
break;
}
case DRAGGING_NEW_LINE_POINT:
if(!ctrlDown) {
SS.GW.pending.suggestion =
SS.GW.SuggestLineConstraint(SS.GW.pending.request);
} else {
SS.GW.pending.suggestion = SUGGESTED_NONE;
}
case DRAGGING_NEW_POINT:
UpdateDraggedPoint(pending.point, x, y);
HitTestMakeSelection(mp);
SS.MarkGroupDirtyByEntity(pending.point);
orig.mouse = mp;
InvalidateGraphics();
break;
case DRAGGING_POINTS:
if(shiftDown || ctrlDown) {
// Edit the rotation associated with a POINT_N_ROT_TRANS,
// either within (ctrlDown) or out of (shiftDown) the plane
// of the screen. So first get the rotation to apply, in qt.
Quaternion qt;
if(ctrlDown) {
double d = mp.DistanceTo(orig.mouseOnButtonDown);
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-orig.mouseOnButtonDown.y,
orig.mouse.x-orig.mouseOnButtonDown.x);
theta -= atan2(y-orig.mouseOnButtonDown.y,
x-orig.mouseOnButtonDown.x);
Vector gn = projRight.Cross(projUp);
qt = Quaternion::From(gn, -theta);
SS.extraLine.draw = true;
SS.extraLine.ptA = UnProjectPoint(orig.mouseOnButtonDown);
SS.extraLine.ptB = UnProjectPoint(mp);
} else {
double dx = -(x - orig.mouse.x);
double dy = -(y - orig.mouse.y);
double s = 0.3*(PI/180); // degrees per pixel
qt = Quaternion::From(projUp, -s*dx).Times(
Quaternion::From(projRight, s*dy));
}
orig.mouse = mp;
// Now apply this rotation to the points being dragged.
List<hEntity> *lhe = &(pending.points);
for(hEntity *he = lhe->First(); he; he = lhe->NextAfter(he)) {
Entity *e = SK.GetEntity(*he);
if(e->type != Entity::POINT_N_ROT_TRANS) {
if(ctrlDown) {
Vector p = e->PointGetNum();
p = p.Minus(SS.extraLine.ptA);
p = qt.Rotate(p);
p = p.Plus(SS.extraLine.ptA);
e->PointForceTo(p);
SS.MarkGroupDirtyByEntity(e->h);
}
continue;
}
Quaternion q = e->PointGetQuaternion();
Vector p = e->PointGetNum();
q = qt.Times(q);
e->PointForceQuaternionTo(q);
// Let's rotate about the selected point; so fix up the
// translation so that that point didn't move.
e->PointForceTo(p);
SS.MarkGroupDirtyByEntity(e->h);
}
} else {
List<hEntity> *lhe = &(pending.points);
for(hEntity *he = lhe->First(); he; he = lhe->NextAfter(he)) {
UpdateDraggedPoint(*he, x, y);
SS.MarkGroupDirtyByEntity(*he);
}
orig.mouse = mp;
}
break;
case DRAGGING_NEW_CUBIC_POINT: {
UpdateDraggedPoint(pending.point, x, y);
HitTestMakeSelection(mp);
hRequest hr = pending.point.request();
if(pending.point.v == hr.entity(4).v) {
// The very first segment; dragging final point drags both
// tangent points.
Vector p0 = SK.GetEntity(hr.entity(1))->PointGetNum(),
p3 = SK.GetEntity(hr.entity(4))->PointGetNum(),
p1 = p0.ScaledBy(2.0/3).Plus(p3.ScaledBy(1.0/3)),
p2 = p0.ScaledBy(1.0/3).Plus(p3.ScaledBy(2.0/3));
SK.GetEntity(hr.entity(1+1))->PointForceTo(p1);
SK.GetEntity(hr.entity(1+2))->PointForceTo(p2);
} else {
// A subsequent segment; dragging point drags only final
// tangent point.
int i = SK.GetEntity(hr.entity(0))->extraPoints;
Vector pn = SK.GetEntity(hr.entity(4+i))->PointGetNum(),
pnm2 = SK.GetEntity(hr.entity(2+i))->PointGetNum(),
pnm1 = (pn.Plus(pnm2)).ScaledBy(0.5);
SK.GetEntity(hr.entity(3+i))->PointForceTo(pnm1);
}
orig.mouse = mp;
SS.MarkGroupDirtyByEntity(pending.point);
break;
}
case DRAGGING_NEW_ARC_POINT: {
UpdateDraggedPoint(pending.point, x, y);
HitTestMakeSelection(mp);
hRequest hr = pending.point.request();
Vector ona = SK.GetEntity(hr.entity(2))->PointGetNum();
Vector onb = SK.GetEntity(hr.entity(3))->PointGetNum();
Vector center = (ona.Plus(onb)).ScaledBy(0.5);
SK.GetEntity(hr.entity(1))->PointForceTo(center);
orig.mouse = mp;
SS.MarkGroupDirtyByEntity(pending.point);
break;
}
case DRAGGING_NEW_RADIUS:
case DRAGGING_RADIUS: {
Entity *circle = SK.GetEntity(pending.circle);
Vector center = SK.GetEntity(circle->point[0])->PointGetNum();
Point2d c2 = ProjectPoint(center);
double r = c2.DistanceTo(mp)/scale;
SK.GetEntity(circle->distance)->DistanceForceTo(r);
SS.MarkGroupDirtyByEntity(pending.circle);
break;
}
case DRAGGING_NORMAL: {
Entity *normal = SK.GetEntity(pending.normal);
Vector p = SK.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 = projRight.Cross(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(projUp, -s*dx);
u = u.RotatedAbout(projRight, s*dy);
v = v.RotatedAbout(projUp, -s*dx);
v = v.RotatedAbout(projRight, s*dy);
}
orig.mouse = mp;
normal->NormalForceTo(Quaternion::From(u, v));
SS.MarkGroupDirtyByEntity(pending.normal);
break;
}
case DRAGGING_MARQUEE:
orig.mouse = mp;
InvalidateGraphics();
break;
default: oops();
}
if(pending.operation != 0 &&
pending.operation != DRAGGING_CONSTRAINT &&
pending.operation != DRAGGING_MARQUEE)
{
SS.GenerateAll();
// Activate degraded mode, and regenerate display items without edges.
if(activeGroup.v != 0) {
bool showEdges = SS.GW.showEdges;
SS.GW.showEdges = false;
SK.GetGroup(activeGroup)->GenerateDisplayItems();
SS.GW.showEdges = showEdges;
isDegraded = true;
}
}
}
void GraphicsWindow::ClearPending(void) {
pending.points.Clear();
pending = {};
SS.ScheduleShowTW();
// If degraded mode was enabled, we need to regenerate again to get edges back.
if(isDegraded) {
isDegraded = false;
SK.GetGroup(activeGroup)->displayDirty = true;
}
}
void GraphicsWindow::MouseMiddleOrRightDown(double x, double y) {
if(GraphicsEditControlIsVisible()) return;
orig.offset = offset;
orig.projUp = projUp;
orig.projRight = projRight;
orig.mouse.x = x;
orig.mouse.y = y;
orig.startedMoving = false;
}
void GraphicsWindow::ContextMenuListStyles(void) {
CreateContextSubmenu();
Style *s;
bool empty = true;
for(s = SK.style.First(); s; s = SK.style.NextAfter(s)) {
if(s->h.v < Style::FIRST_CUSTOM) continue;
AddContextMenuItem(s->DescriptionString().c_str(), CMNU_FIRST_STYLE + s->h.v);
empty = false;
}
if(!empty) AddContextMenuItem(NULL, CONTEXT_SEPARATOR);
AddContextMenuItem("No Style", CMNU_NO_STYLE);
AddContextMenuItem("Newly Created Custom Style...", CMNU_NEW_CUSTOM_STYLE);
}
void GraphicsWindow::MouseRightUp(double x, double y) {
SS.extraLine.draw = false;
InvalidateGraphics();
// Don't show a context menu if the user is right-clicking the toolbar,
// or if they are finishing a pan.
if(ToolbarMouseMoved((int)x, (int)y)) return;
if(orig.startedMoving) return;
if(context.active) return;
if(pending.operation == DRAGGING_NEW_LINE_POINT) {
if(SS.GW.pending.suggestion != SUGGESTED_NONE) {
Constraint::Constrain(SS.GW.pending.suggestion,
Entity::NO_ENTITY, Entity::NO_ENTITY, pending.request.entity(0));
}
}
if(pending.operation == DRAGGING_NEW_LINE_POINT ||
pending.operation == DRAGGING_NEW_CUBIC_POINT)
{
// Special case; use a right click to stop drawing lines, since
// a left click would draw another one. This is quicker and more
// intuitive than hitting escape. Likewise for new cubic segments.
ClearPending();
return;
}
// The current mouse location
Vector v = offset.ScaledBy(-1);
v = v.Plus(projRight.ScaledBy(x/scale));
v = v.Plus(projUp.ScaledBy(y/scale));
context.active = true;
if(!hover.IsEmpty()) {
MakeSelected(&hover);
SS.ScheduleShowTW();
}
GroupSelection();
bool itemsSelected = (gs.n > 0 || gs.constraints > 0);
int addAfterPoint = -1;
if(itemsSelected) {
if(gs.stylables > 0) {
ContextMenuListStyles();
AddContextMenuItem("Assign to Style", CONTEXT_SUBMENU);
}
if(gs.n + gs.constraints == 1) {
AddContextMenuItem("Group Info", CMNU_GROUP_INFO);
}
if(gs.n + gs.constraints == 1 && gs.stylables == 1) {
AddContextMenuItem("Style Info", CMNU_STYLE_INFO);
}
if(gs.withEndpoints > 0) {
AddContextMenuItem("Select Edge Chain", CMNU_SELECT_CHAIN);
}
if(gs.constraints == 1 && gs.n == 0) {
Constraint *c = SK.GetConstraint(gs.constraint[0]);
if(c->HasLabel() && c->type != Constraint::COMMENT) {
AddContextMenuItem("Toggle Reference Dimension",
CMNU_REFERENCE_DIM);
}
if(c->type == Constraint::ANGLE ||
c->type == Constraint::EQUAL_ANGLE)
{
AddContextMenuItem("Other Supplementary Angle",
CMNU_OTHER_ANGLE);
}
}
if(gs.constraintLabels > 0 || gs.points > 0) {
AddContextMenuItem("Snap to Grid", CMNU_SNAP_TO_GRID);
}
if(gs.points == 1 && gs.point[0].isFromRequest()) {
Request *r = SK.GetRequest(gs.point[0].request());
int index = r->IndexOfPoint(gs.point[0]);
if((r->type == Request::CUBIC && (index > 1 && index < r->extraPoints + 2)) ||
r->type == Request::CUBIC_PERIODIC) {
AddContextMenuItem("Remove Spline Point", CMNU_REMOVE_SPLINE_PT);
}
}
if(gs.entities == 1 && gs.entity[0].isFromRequest()) {
Request *r = SK.GetRequest(gs.entity[0].request());
if(r->type == Request::CUBIC || r->type == Request::CUBIC_PERIODIC) {
Entity *e = SK.GetEntity(gs.entity[0]);
e->GetDistance(Point2d::From(x, y));
addAfterPoint = e->dogd.data;
if(addAfterPoint == -1) oops();
// Skip derivative point.
if(r->type == Request::CUBIC) addAfterPoint++;
AddContextMenuItem("Add Spline Point", CMNU_ADD_SPLINE_PT);
}
}
if(gs.points == 1) {
Entity *p = SK.GetEntity(gs.point[0]);
Constraint *c;
IdList<Constraint,hConstraint> *lc = &(SK.constraint);
for(c = lc->First(); c; c = lc->NextAfter(c)) {
if(c->type != Constraint::POINTS_COINCIDENT) continue;
if(c->ptA.v == p->h.v || c->ptB.v == p->h.v) {
break;
}
}
if(c) {
AddContextMenuItem("Delete Point-Coincident Constraint",
CMNU_DEL_COINCIDENT);
}
}
AddContextMenuItem(NULL, CONTEXT_SEPARATOR);
if(LockedInWorkplane()) {
AddContextMenuItem("Cut", CMNU_CUT_SEL);
AddContextMenuItem("Copy", CMNU_COPY_SEL);
}
}
if((SS.clipboard.r.n > 0 || SS.clipboard.c.n > 0) && LockedInWorkplane()) {
AddContextMenuItem("Paste", CMNU_PASTE);
AddContextMenuItem("Paste Transformed...", CMNU_PASTE_XFRM);
}
if(itemsSelected) {
AddContextMenuItem("Delete", CMNU_DELETE_SEL);
AddContextMenuItem(NULL, CONTEXT_SEPARATOR);
AddContextMenuItem("Unselect All", CMNU_UNSELECT_ALL);
}
// If only one item is selected, then it must be the one that we just
// selected from the hovered item; in which case unselect all and hovered
// are equivalent.
if(!hover.IsEmpty() && selection.n > 1) {
AddContextMenuItem("Unselect Hovered", CMNU_UNSELECT_HOVERED);
}
int ret = ShowContextMenu();
switch(ret) {
case CMNU_UNSELECT_ALL:
MenuEdit(MNU_UNSELECT_ALL);
break;
case CMNU_UNSELECT_HOVERED:
if(!hover.IsEmpty()) {
MakeUnselected(&hover, true);
}
break;
case CMNU_SELECT_CHAIN:
MenuEdit(MNU_SELECT_CHAIN);
break;
case CMNU_CUT_SEL:
MenuClipboard(MNU_CUT);
break;
case CMNU_COPY_SEL:
MenuClipboard(MNU_COPY);
break;
case CMNU_PASTE:
MenuClipboard(MNU_PASTE);
break;
case CMNU_PASTE_XFRM:
MenuClipboard(MNU_PASTE_TRANSFORM);
break;
case CMNU_DELETE_SEL:
MenuClipboard(MNU_DELETE);
break;
case CMNU_REFERENCE_DIM:
Constraint::MenuConstrain(MNU_REFERENCE);
break;
case CMNU_OTHER_ANGLE:
Constraint::MenuConstrain(MNU_OTHER_ANGLE);
break;
case CMNU_DEL_COINCIDENT: {
SS.UndoRemember();
if(!gs.point[0].v) break;
Entity *p = SK.GetEntity(gs.point[0]);
if(!p->IsPoint()) break;
SK.constraint.ClearTags();
Constraint *c;
for(c = SK.constraint.First(); c; c = SK.constraint.NextAfter(c)) {
if(c->type != Constraint::POINTS_COINCIDENT) continue;
if(c->ptA.v == p->h.v || c->ptB.v == p->h.v) {
c->tag = 1;
}
}
SK.constraint.RemoveTagged();
ClearSelection();
break;
}
case CMNU_SNAP_TO_GRID:
MenuEdit(MNU_SNAP_TO_GRID);
break;
case CMNU_REMOVE_SPLINE_PT: {
hRequest hr = gs.point[0].request();
Request *r = SK.GetRequest(hr);
int index = r->IndexOfPoint(gs.point[0]);
if(r->extraPoints == 0) oops();
SS.UndoRemember();
Entity *e = SK.GetEntity(r->h.entity(0));
// First, fix point-coincident constraints involving this point.
// Then, remove all other constraints, since they would otherwise
// jump to an adjacent one and mess up the bezier after generation.
FixConstraintsForPointBeingDeleted(e->point[index]);
RemoveConstraintsForPointBeingDeleted(e->point[index]);
for(int i = index; i < MAX_POINTS_IN_ENTITY - 1; i++) {
if(e->point[i + 1].v == 0) break;
Entity *p0 = SK.GetEntity(e->point[i]);
Entity *p1 = SK.GetEntity(e->point[i + 1]);
ReplacePointInConstraints(p1->h, p0->h);
p0->PointForceTo(p1->PointGetNum());
}
r->extraPoints--;
SS.MarkGroupDirtyByEntity(gs.point[0]);
SS.ScheduleGenerateAll();
ClearSelection();
break;
}
case CMNU_ADD_SPLINE_PT: {
hRequest hr = gs.entity[0].request();
Request *r = SK.GetRequest(hr);
int pointCount = r->extraPoints + ((r->type == Request::CUBIC_PERIODIC) ? 3 : 4);
if(pointCount < MAX_POINTS_IN_ENTITY) {
SS.UndoRemember();
r->extraPoints++;
SS.MarkGroupDirtyByEntity(gs.entity[0]);
SS.GenerateAll(SolveSpaceUI::GENERATE_REGEN);
Entity *e = SK.GetEntity(r->h.entity(0));
for(int i = MAX_POINTS_IN_ENTITY; i > addAfterPoint + 1; i--) {
Entity *p0 = SK.entity.FindByIdNoOops(e->point[i]);
if(p0 == NULL) continue;
Entity *p1 = SK.GetEntity(e->point[i - 1]);
ReplacePointInConstraints(p1->h, p0->h);
p0->PointForceTo(p1->PointGetNum());
}
Entity *p = SK.GetEntity(e->point[addAfterPoint + 1]);
p->PointForceTo(v);
SS.MarkGroupDirtyByEntity(gs.entity[0]);
SS.ScheduleGenerateAll();
ClearSelection();
} else {
Error("Cannot add spline point: maximum number of points reached.");
}
break;
}
case CMNU_GROUP_INFO: {
hGroup hg;
if(gs.entities == 1) {
hg = SK.GetEntity(gs.entity[0])->group;
} else if(gs.points == 1) {
hg = SK.GetEntity(gs.point[0])->group;
} else if(gs.constraints == 1) {
hg = SK.GetConstraint(gs.constraint[0])->group;
} else {
break;
}
ClearSelection();
SS.TW.GoToScreen(TextWindow::SCREEN_GROUP_INFO);
SS.TW.shown.group = hg;
SS.ScheduleShowTW();
ForceTextWindowShown();
break;
}
case CMNU_STYLE_INFO: {
hStyle hs;
if(gs.entities == 1) {
hs = Style::ForEntity(gs.entity[0]);
} else if(gs.points == 1) {
hs = Style::ForEntity(gs.point[0]);
} else if(gs.constraints == 1) {
hs = SK.GetConstraint(gs.constraint[0])->GetStyle();
} else {
break;
}
ClearSelection();
SS.TW.GoToScreen(TextWindow::SCREEN_STYLE_INFO);
SS.TW.shown.style = hs;
SS.ScheduleShowTW();
ForceTextWindowShown();
break;
}
case CMNU_NEW_CUSTOM_STYLE: {
uint32_t v = Style::CreateCustomStyle();
Style::AssignSelectionToStyle(v);
ForceTextWindowShown();
break;
}
case CMNU_NO_STYLE:
Style::AssignSelectionToStyle(0);
break;
default:
if(ret >= CMNU_FIRST_STYLE) {
Style::AssignSelectionToStyle(ret - CMNU_FIRST_STYLE);
} else {
// otherwise it was cancelled, so do nothing
contextMenuCancelTime = GetMilliseconds();
}
break;
}
context.active = false;
SS.ScheduleShowTW();
}
hRequest GraphicsWindow::AddRequest(int type) {
return AddRequest(type, true);
}
hRequest GraphicsWindow::AddRequest(int type, bool rememberForUndo) {
if(rememberForUndo) SS.UndoRemember();
Request r = {};
r.group = activeGroup;
Group *g = SK.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;
SK.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(SolveSpaceUI::GENERATE_REGEN);
SS.MarkGroupDirty(r.group);
return r.h;
}
bool GraphicsWindow::ConstrainPointByHovered(hEntity pt) {
if(!hover.entity.v) return false;
Entity *e = SK.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) {
orig.mouseDown = true;
if(GraphicsEditControlIsVisible()) {
orig.mouse = Point2d::From(mx, my);
orig.mouseOnButtonDown = orig.mouse;
HideGraphicsEditControl();
return;
}
SS.TW.HideEditControl();
if(SS.showToolbar) {
if(ToolbarMouseDown((int)mx, (int)my)) return;
}
// This will be clobbered by MouseMoved below.
SuggestedConstraint constraintSuggestion = SS.GW.pending.suggestion;
// Make sure the hover is up to date.
MouseMoved(mx, my, false, false, false, false, false);
orig.mouse.x = mx;
orig.mouse.y = my;
orig.mouseOnButtonDown = orig.mouse;
// 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 = {};
hConstraint hc = {};
switch(pending.operation) {
case MNU_DATUM_POINT:
hr = AddRequest(Request::DATUM_POINT);
SK.GetEntity(hr.entity(0))->PointForceTo(v);
ConstrainPointByHovered(hr.entity(0));
ClearSuper();
break;
case MNU_LINE_SEGMENT:
case MNU_CONSTR_SEGMENT:
hr = AddRequest(Request::LINE_SEGMENT);
SK.GetRequest(hr)->construction = (pending.operation == MNU_CONSTR_SEGMENT);
SK.GetEntity(hr.entity(1))->PointForceTo(v);
ConstrainPointByHovered(hr.entity(1));
ClearSuper();
pending.operation = DRAGGING_NEW_LINE_POINT;
pending.request = hr;
pending.point = hr.entity(2);
pending.description = "click next point of line, or press Esc";
SK.GetEntity(pending.point)->PointForceTo(v);
break;
case MNU_RECTANGLE: {
if(!SS.GW.LockedInWorkplane()) {
Error("Can't draw rectangle in 3d; select a workplane first.");
ClearSuper();
break;
}
hRequest lns[4];
int i;
SS.UndoRemember();
for(i = 0; i < 4; i++) {
lns[i] = AddRequest(Request::LINE_SEGMENT, false);
}
for(i = 0; i < 4; i++) {
Constraint::ConstrainCoincident(
lns[i].entity(1), lns[(i+1)%4].entity(2));
SK.GetEntity(lns[i].entity(1))->PointForceTo(v);
SK.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";
hr = lns[0];
break;
}
case MNU_CIRCLE:
hr = AddRequest(Request::CIRCLE);
// Centered where we clicked
SK.GetEntity(hr.entity(1))->PointForceTo(v);
// Normal to the screen
SK.GetEntity(hr.entity(32))->NormalForceTo(
Quaternion::From(SS.GW.projRight, SS.GW.projUp));
// Initial radius zero
SK.GetEntity(hr.entity(64))->DistanceForceTo(0);
ConstrainPointByHovered(hr.entity(1));
ClearSuper();
pending.operation = DRAGGING_NEW_RADIUS;
pending.circle = hr.entity(0);
pending.description = "click to set radius";
break;