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solvespace/clipboard.cpp

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//-----------------------------------------------------------------------------
// The clipboard that gets manipulated when the user selects Edit -> Cut,
// Copy, Paste, etc.; may contain entities only, not constraints.
//
// Copyright 2008-2013 Jonathan Westhues.
//-----------------------------------------------------------------------------
#include "solvespace.h"
void SolveSpace::Clipboard::Clear(void) {
c.Clear();
r.Clear();
}
hEntity SolveSpace::Clipboard::NewEntityFor(hEntity he) {
ClipboardRequest *cr;
for(cr = r.First(); cr; cr = r.NextAfter(cr)) {
if(cr->oldEnt.v == he.v) {
return cr->newReq.entity(0);
}
for(int i = 0; i < MAX_POINTS_IN_ENTITY; i++) {
if(cr->oldPointEnt[i].v == he.v) {
return cr->newReq.entity(1+i);
}
}
}
return Entity::NO_ENTITY;
}
bool SolveSpace::Clipboard::ContainsEntity(hEntity he) {
hEntity hen = NewEntityFor(he);
if(hen.v) {
return true;
} else {
return false;
}
}
void GraphicsWindow::DeleteSelection(void) {
SK.request.ClearTags();
SK.constraint.ClearTags();
List<Selection> *ls = &(selection);
for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) {
hRequest r = { 0 };
if(s->entity.v && s->entity.isFromRequest()) {
r = s->entity.request();
}
if(r.v && !r.IsFromReferences()) {
SK.request.Tag(r, 1);
}
if(s->constraint.v) {
SK.constraint.Tag(s->constraint, 1);
}
}
SK.constraint.RemoveTagged();
// Note that this regenerates and clears the selection, to avoid
// lingering references to the just-deleted items.
DeleteTaggedRequests();
}
void GraphicsWindow::CopySelection(void) {
SS.clipboard.Clear();
Entity *wrkpl = SK.GetEntity(ActiveWorkplane());
Entity *wrkpln = SK.GetEntity(wrkpl->normal);
Vector u = wrkpln->NormalU(),
v = wrkpln->NormalV(),
n = wrkpln->NormalN(),
p = SK.GetEntity(wrkpl->point[0])->PointGetNum();
List<Selection> *ls = &(selection);
for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) {
if(!s->entity.v) continue;
// Work only on entities that have requests that will generate them.
Entity *e = SK.GetEntity(s->entity);
bool hasDistance;
int req, pts;
if(!EntReqTable::GetEntityInfo(e->type, e->extraPoints,
&req, &pts, NULL, &hasDistance))
{
continue;
}
if(req == Request::WORKPLANE) continue;
ClipboardRequest cr;
ZERO(&cr);
cr.type = req;
cr.extraPoints = e->extraPoints;
cr.style = e->style;
cr.str.strcpy( e->str.str);
cr.font.strcpy( e->font.str);
cr.construction = e->construction;
for(int i = 0; i < pts; i++) {
Vector pt = SK.GetEntity(e->point[i])->PointGetNum();
pt = pt.Minus(p);
pt = pt.DotInToCsys(u, v, n);
cr.point[i] = pt;
}
if(hasDistance) {
cr.distance = SK.GetEntity(e->distance)->DistanceGetNum();
}
cr.oldEnt = e->h;
for(int i = 0; i < pts; i++) {
cr.oldPointEnt[i] = e->point[i];
}
SS.clipboard.r.Add(&cr);
}
Constraint *c;
for(c = SK.constraint.First(); c; c = SK.constraint.NextAfter(c)) {
if(c->type == Constraint::POINTS_COINCIDENT) {
if(!SS.clipboard.ContainsEntity(c->ptA)) continue;
if(!SS.clipboard.ContainsEntity(c->ptB)) continue;
} else {
continue;
}
SS.clipboard.c.Add(c);
}
}
void GraphicsWindow::PasteClipboard(Vector trans, double theta, double scale) {
Entity *wrkpl = SK.GetEntity(ActiveWorkplane());
Entity *wrkpln = SK.GetEntity(wrkpl->normal);
Vector u = wrkpln->NormalU(),
v = wrkpln->NormalV(),
n = wrkpln->NormalN(),
p = SK.GetEntity(wrkpl->point[0])->PointGetNum();
ClipboardRequest *cr;
for(cr = SS.clipboard.r.First(); cr; cr = SS.clipboard.r.NextAfter(cr)) {
hRequest hr = AddRequest(cr->type, false);
Request *r = SK.GetRequest(hr);
r->extraPoints = cr->extraPoints;
r->style = cr->style;
r->str.strcpy( cr->str.str);
r->font.strcpy( cr->font.str);
r->construction = cr->construction;
// Need to regen to get the right number of points, if extraPoints
// changed.
SS.GenerateAll(-1, -1);
SS.MarkGroupDirty(r->group);
bool hasDistance;
int i, pts;
EntReqTable::GetRequestInfo(r->type, r->extraPoints,
NULL, &pts, NULL, &hasDistance);
for(i = 0; i < pts; i++) {
Vector pt = cr->point[i];
// We need the reflection to occur within the workplane; it may
// otherwise correspond to just a rotation as projected.
if(scale < 0) {
pt.x *= -1;
}
// Likewise the scale, which could otherwise take us out of the
// workplane.
pt = pt.ScaledBy(fabs(scale));
pt = pt.ScaleOutOfCsys(u, v, Vector::From(0, 0, 0));
pt = pt.Plus(p);
pt = pt.RotatedAbout(n, theta);
pt = pt.Plus(trans);
SK.GetEntity(hr.entity(i+1))->PointForceTo(pt);
}
if(hasDistance) {
SK.GetEntity(hr.entity(64))->DistanceForceTo(
cr->distance*fabs(scale));
}
cr->newReq = hr;
MakeSelected(hr.entity(0));
for(i = 0; i < pts; i++) {
MakeSelected(hr.entity(i+1));
}
}
Constraint *c;
for(c = SS.clipboard.c.First(); c; c = SS.clipboard.c.NextAfter(c)) {
if(c->type == Constraint::POINTS_COINCIDENT) {
Constraint::ConstrainCoincident(SS.clipboard.NewEntityFor(c->ptA),
SS.clipboard.NewEntityFor(c->ptB));
}
}
SS.later.generateAll = true;
}
void GraphicsWindow::MenuClipboard(int id) {
if(id != MNU_DELETE && !SS.GW.LockedInWorkplane()) {
Error("Cut, paste, and copy work only in a workplane.\n\n"
"Select one with Sketch -> In Workplane.");
return;
}
switch(id) {
case MNU_PASTE: {
SS.UndoRemember();
Vector trans = SS.GW.projRight.ScaledBy(80/SS.GW.scale).Plus(
SS.GW.projUp .ScaledBy(40/SS.GW.scale));
SS.GW.ClearSelection();
SS.GW.PasteClipboard(trans, 0, 1);
break;
}
case MNU_PASTE_TRANSFORM: {
if(SS.clipboard.r.n == 0) {
Error("Clipboard is empty; nothing to paste.");
break;
}
Entity *wrkpl = SK.GetEntity(SS.GW.ActiveWorkplane());
Vector p = SK.GetEntity(wrkpl->point[0])->PointGetNum();
SS.TW.shown.paste.times = 1;
SS.TW.shown.paste.trans = Vector::From(0, 0, 0);
SS.TW.shown.paste.theta = 0;
SS.TW.shown.paste.origin = p;
SS.TW.shown.paste.scale = 1;
SS.TW.GoToScreen(TextWindow::SCREEN_PASTE_TRANSFORMED);
SS.GW.ForceTextWindowShown();
SS.later.showTW = true;
break;
}
case MNU_COPY:
SS.GW.CopySelection();
SS.GW.ClearSelection();
break;
case MNU_CUT:
SS.UndoRemember();
SS.GW.CopySelection();
SS.GW.DeleteSelection();
break;
case MNU_DELETE:
SS.UndoRemember();
SS.GW.DeleteSelection();
break;
default: oops();
}
}
bool TextWindow::EditControlDoneForPaste(const char *s) {
Expr *e;
switch(edit.meaning) {
case EDIT_PASTE_TIMES_REPEATED: {
e = Expr::From(s, true);
if(!e) break;
int v = (int)e->Eval();
if(v > 0) {
shown.paste.times = v;
} else {
Error("Number of copies to paste must be at least one.");
}
break;
}
case EDIT_PASTE_ANGLE:
e = Expr::From(s, true);
if(!e) break;
shown.paste.theta = WRAP_SYMMETRIC((e->Eval())*PI/180, 2*PI);
break;
case EDIT_PASTE_SCALE: {
e = Expr::From(s, true);
double v = e->Eval();
if(fabs(v) > 1e-6) {
shown.paste.scale = v;
} else {
Error("Scale cannot be zero.");
}
break;
}
default:
return false;
}
return true;
}
void TextWindow::ScreenChangePasteTransformed(int link, uint32_t v) {
char str[300];
switch(link) {
case 't':
sprintf(str, "%d", SS.TW.shown.paste.times);
SS.TW.ShowEditControl(10, 13, str);
SS.TW.edit.meaning = EDIT_PASTE_TIMES_REPEATED;
break;
case 'r':
sprintf(str, "%.3f", SS.TW.shown.paste.theta*180/PI);
SS.TW.ShowEditControl(12, 13, str);
SS.TW.edit.meaning = EDIT_PASTE_ANGLE;
break;
case 's':
sprintf(str, "%.3f", SS.TW.shown.paste.scale);
SS.TW.ShowEditControl(18, 13, str);
SS.TW.edit.meaning = EDIT_PASTE_SCALE;
break;
}
}
void TextWindow::ScreenPasteTransformed(int link, uint32_t v) {
SS.GW.GroupSelection();
switch(link) {
case 'o':
if(SS.GW.gs.points == 1 && SS.GW.gs.n == 1) {
Entity *e = SK.GetEntity(SS.GW.gs.point[0]);
SS.TW.shown.paste.origin = e->PointGetNum();
} else {
Error("Select one point to define origin of rotation.");
}
SS.GW.ClearSelection();
break;
case 't':
if(SS.GW.gs.points == 2 && SS.GW.gs.n == 2) {
Entity *pa = SK.GetEntity(SS.GW.gs.point[0]),
*pb = SK.GetEntity(SS.GW.gs.point[1]);
SS.TW.shown.paste.trans =
(pb->PointGetNum()).Minus(pa->PointGetNum());
} else {
Error("Select two points to define translation vector.");
}
SS.GW.ClearSelection();
break;
case 'g': {
if(fabs(SS.TW.shown.paste.theta) < LENGTH_EPS &&
SS.TW.shown.paste.trans.Magnitude() < LENGTH_EPS &&
SS.TW.shown.paste.times != 1)
{
Message("Transformation is identity. So all copies will be "
"exactly on top of each other.");
}
if(SS.TW.shown.paste.times*SS.clipboard.r.n > 100) {
Error("Too many items to paste; split this into smaller "
"pastes.");
break;
}
if(!SS.GW.LockedInWorkplane()) {
Error("No workplane active.");
break;
}
Entity *wrkpl = SK.GetEntity(SS.GW.ActiveWorkplane());
Entity *wrkpln = SK.GetEntity(wrkpl->normal);
Vector wn = wrkpln->NormalN();
SS.UndoRemember();
SS.GW.ClearSelection();
for(int i = 0; i < SS.TW.shown.paste.times; i++) {
Vector trans = SS.TW.shown.paste.trans.ScaledBy(i+1),
origin = SS.TW.shown.paste.origin;
double theta = SS.TW.shown.paste.theta*(i+1);
// desired transformation is Q*(p - o) + o + t =
// Q*p - Q*o + o + t = Q*p + (t + o - Q*o)
Vector t = trans.Plus(
origin).Minus(
origin.RotatedAbout(wn, theta));
SS.GW.PasteClipboard(t, theta, SS.TW.shown.paste.scale);
}
SS.TW.GoToScreen(SCREEN_LIST_OF_GROUPS);
SS.later.showTW = true;
break;
}
}
}
void TextWindow::ShowPasteTransformed(void) {
Printf(true, "%FtPASTE TRANSFORMED%E");
Printf(true, "%Ba %Ftrepeat%E %d time%s %Fl%Lt%f[change]%E",
shown.paste.times, (shown.paste.times == 1) ? "" : "s",
&ScreenChangePasteTransformed);
Printf(false, "%Bd %Ftrotate%E %@ degrees %Fl%Lr%f[change]%E",
shown.paste.theta*180/PI,
&ScreenChangePasteTransformed);
Printf(false, "%Ba %Ftabout pt%E (%s, %s, %s) %Fl%Lo%f[use selected]%E",
SS.MmToString(shown.paste.origin.x),
SS.MmToString(shown.paste.origin.y),
SS.MmToString(shown.paste.origin.z),
&ScreenPasteTransformed);
Printf(false, "%Bd %Fttranslate%E (%s, %s, %s) %Fl%Lt%f[use selected]%E",
SS.MmToString(shown.paste.trans.x),
SS.MmToString(shown.paste.trans.y),
SS.MmToString(shown.paste.trans.z),
&ScreenPasteTransformed);
Printf(false, "%Ba %Ftscale%E %@ %Fl%Ls%f[change]%E",
shown.paste.scale,
&ScreenChangePasteTransformed);
Printf(true, " %Fl%Lg%fpaste transformed now%E", &ScreenPasteTransformed);
Printf(true, "(or %Fl%Ll%fcancel operation%E)", &ScreenHome);
}
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