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Chenwenxuan
2024-03-06 14:54:30 +08:00
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actions/rs_actionpolylinesegment.cpp Normal file
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/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#include <QAction>
#include <QMouseEvent>
#include "rs_actionpolylinesegment.h"
#include "rs_dialogfactory.h"
#include "rs_graphicview.h"
#include "rs_arc.h"
#include "rs_line.h"
#include "rs_polyline.h"
#include "rs_debug.h"
namespace {
std::initializer_list<RS2::EntityType>
entityType{RS2::EntityLine, RS2::EntityPolyline, RS2::EntityArc};
}
RS_ActionPolylineSegment::RS_ActionPolylineSegment(RS_EntityContainer& container,
RS_GraphicView& graphicView)
:RS_PreviewActionInterface("Create Polyline Existing from Segments",
container, graphicView) {
actionType=RS2::ActionPolylineSegment;
}
void RS_ActionPolylineSegment::init(int status) {
RS_ActionInterface::init(status);
targetEntity = nullptr;
//Experimental feature: trigger action, if already has selected entities
if (container->countSelected(true, entityType)) {
//find a selected entity
//TODO, find a better starting point
for (RS_Entity* e : *container) {
if (e->isSelected() &&
std::count(entityType.begin(), entityType.end(), e->rtti())) {
targetEntity = e;
break;
}
}
if (targetEntity) {
convertPolyline(targetEntity, true);
RS_DIALOGFACTORY->commandMessage(tr("Polyline created"));
graphicView->redraw();
RS_DIALOGFACTORY->updateSelectionWidget(container->countSelected(),container->totalSelectedLength());
finish(false);
return;
}
}
}
/**
* Utility function for convertPolyline
* Appends in current the vertex from toAdd reversing if reversed is true
* The first vertex is not added and the last is returned instead of added
*
* @retval RS_Vector with the last vertex not inserted
*
* @author Rallaz
*/
RS_Vector RS_ActionPolylineSegment::appendPol(RS_Polyline *current, RS_Polyline *toAdd, bool reversed) {
QList<RS_Entity*> entities;
for(auto v: *toAdd){
if (reversed)
entities.prepend(v);
else
entities.append(v);
}
//bad polyline without vertex
if (entities.isEmpty())
return RS_Vector(false);
double bulge=0.0;
RS_Entity* e = entities.takeFirst() ;
//First polyline vertex
if (e->rtti() == RS2::EntityArc) {
if (reversed)
current->setNextBulge(((RS_Arc*)e)->getBulge()*-1);
else
current->setNextBulge(((RS_Arc*)e)->getBulge());
}
while (!entities.isEmpty()) {
e = entities.takeFirst();
if (e->rtti()==RS2::EntityArc) {
if (reversed)
bulge = ((RS_Arc*)e)->getBulge()*-1;
else
bulge = ((RS_Arc*)e)->getBulge();
} else
bulge = 0.0;
if (reversed)
current->addVertex(e->getEndpoint(),bulge, false);
else
current->addVertex(e->getStartpoint(),bulge, false);
}
if (reversed)
return e->getStartpoint();
else
return e->getEndpoint();
}
/**
* Rearranges the lines, arcs or opened polylines entities
* in this container, non-recoursive.
* document can not be null
*
* @retval true contour are closed
* @retval false if the contour is not closed
*
* @author Rallaz
*/
bool RS_ActionPolylineSegment::convertPolyline(RS_Entity* selectedEntity, bool useSelected) {
RS_DEBUG->print("RS_ActionPolylineSegment::convertPolyline");
QList<RS_Entity*> remaining;
QList<RS_Entity*> completed;
RS_Vector start = selectedEntity->getStartpoint();
RS_Vector end = selectedEntity->getEndpoint();
if (!useSelected || (selectedEntity && selectedEntity->isSelected()))
completed.append(selectedEntity);
//get list with useful entities
for (RS_Entity* e1 : *container) {
if (useSelected && !e1->isSelected()) continue;
if (e1->isLocked() || !e1->isVisible() || e1 == selectedEntity) continue;
if (e1->rtti()==RS2::EntityLine || e1->rtti()==RS2::EntityArc
|| e1->rtti()==RS2::EntityPolyline) {
if (targetEntity->rtti()==RS2::EntityPolyline && ((RS_Polyline*)targetEntity)->isClosed())
continue;
if (e1 == selectedEntity)
continue;
remaining.append(e1);
}
}
// find all connected entities:
bool done = true;
do {
done = true;
for (int i=(remaining.size() -1) ; i>=0; --i) {
RS_Entity* e=remaining.at(i);
if (e->getEndpoint().distanceTo(start) < 1.0e-4) {
completed.prepend( e);
start = e->getStartpoint();
remaining.removeAt(i);
done = false;
} else if (e->getStartpoint().distanceTo(start) < 1.0e-4) {
completed.prepend( e);
start = e->getEndpoint();
remaining.removeAt(i);
done = false;
} else if (e->getEndpoint().distanceTo(end) < 1.0e-4) {
completed.append( e);
end = e->getStartpoint();
remaining.removeAt(i);
done = false;
} else if (e->getStartpoint().distanceTo(end) < 1.0e-4) {
completed.append( e);
end = e->getEndpoint();
remaining.removeAt(i);
done = false;
}
}
} while (!done);
//cleanup for no more needed list
remaining.clear();
bool closed = false;
if (document) {
document->startUndoCycle();
bool revert = false;
double bulge = 0.0;
if (end.distanceTo(start) < 1.0e-4)
closed = true;
RS_Polyline* newPolyline = new RS_Polyline(container, RS_PolylineData(RS_Vector(false), RS_Vector(false), closed));
newPolyline->setLayerToActive();
newPolyline->setPenToActive();
//complete polyline
end =start;
while (!completed.isEmpty()) {
RS_Entity* e2= completed.takeFirst();
e2->setUndoState(true);
document->addUndoable(e2);
if (e2->getStartpoint().distanceTo(end) < 1.0e-4) {
revert = false;
start = e2->getStartpoint();
end = e2->getEndpoint();
} else {
revert = true;
start = e2->getEndpoint();
end = e2->getStartpoint();
}
if (e2->rtti()==RS2::EntityArc) {
if (revert)
bulge = ((RS_Arc*)e2)->getBulge()*-1;
else
bulge = ((RS_Arc*)e2)->getBulge();
} else
bulge = 0.0;
if (e2->rtti()==RS2::EntityPolyline) {
newPolyline->addVertex(start, bulge);
end = appendPol(newPolyline, (RS_Polyline*)e2, revert);
} else
newPolyline->addVertex(start, bulge);
}
if (closed)
newPolyline->setClosed(true);
else
newPolyline->addVertex(end, bulge);
newPolyline->endPolyline();
container->addEntity(newPolyline);
if (graphicView) {
graphicView->drawEntity(newPolyline);
}
document->addUndoable(newPolyline);
document->endUndoCycle();
}
RS_DEBUG->print("RS_ActionPolylineSegment::convertPolyline: OK");
return closed;
}
void RS_ActionPolylineSegment::trigger() {
RS_DEBUG->print("RS_ActionPolylineSegment::trigger()");
if (targetEntity /*&& selectedSegment && targetPoint.valid */) {
targetEntity->setHighlighted(false);
graphicView->drawEntity(targetEntity);
//RLZ: do not use container->optimizeContours(); because it invalidate targetEntity
// container->optimizeContours();
convertPolyline(targetEntity);
targetEntity = nullptr;
setStatus(ChooseEntity);
RS_DIALOGFACTORY->updateSelectionWidget(container->countSelected(),container->totalSelectedLength());
}
////////////////////////////////////////2006/06/15
graphicView->redraw();
////////////////////////////////////////
}
void RS_ActionPolylineSegment::mouseReleaseEvent(QMouseEvent* e) {
if (e->button()==Qt::LeftButton) {
switch (getStatus()) {
case ChooseEntity:
targetEntity = catchEntity(e, entityType);
if (targetEntity==nullptr) {
RS_DIALOGFACTORY->commandMessage(tr("No Entity found."));
} else if (targetEntity->rtti()==RS2::EntityPolyline && ((RS_Polyline*)targetEntity)->isClosed()){
RS_DIALOGFACTORY->commandMessage(
tr("Entity can not be a closed polyline."));
} else {
//TODO, verify topology of selected
targetEntity->setHighlighted(true);
graphicView->drawEntity(targetEntity);
// setStatus(SetReferencePoint);
////////////////////////////////////////2006/06/15
graphicView->redraw();
////////////////////////////////////////
trigger();
}
break;
default:
break;
}
} else if (e->button()==Qt::RightButton) {
deleteSnapper();
if (targetEntity) {
targetEntity->setHighlighted(false);
graphicView->drawEntity(targetEntity);
////////////////////////////////////////2006/06/15
graphicView->redraw();
////////////////////////////////////////
}
init(getStatus()-1);
}
/* if (e->button())==Qt::LeftButton) {
RS_CoordinateEvent ce(snapPoint(e));
coordinateEvent(&ce);
} else if (RS2::qtToRsButtonState(e->button())==RS2::RightButton) {
deletePreview();
deleteSnapper
init(getStatus()-1);
}
*/
}
void RS_ActionPolylineSegment::updateMouseButtonHints() {
switch (getStatus()) {
case ChooseEntity:
RS_DIALOGFACTORY->updateMouseWidget(tr("Choose one of the segments on the original polyline"),
tr("Cancel"));
break;
default:
RS_DIALOGFACTORY->updateMouseWidget();
break;
}
}
void RS_ActionPolylineSegment::updateMouseCursor() {
graphicView->setMouseCursor(RS2::SelectCursor);
}
// EOF