533 lines
14 KiB
C++
533 lines
14 KiB
C++
/****************************************************************************
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**
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** This file is part of the LibreCAD project, a 2D CAD program
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**
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** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
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** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
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**
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file gpl-2.0.txt included in the
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** packaging of this file.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**
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** This copyright notice MUST APPEAR in all copies of the script!
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**
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**********************************************************************/
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#include<cmath>
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#include <QAction>
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#include <QMouseEvent>
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#include "rs_actiondrawpolyline.h"
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#include "rs_dialogfactory.h"
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#include "rs_graphicview.h"
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#include "rs_commands.h"
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#include "rs_commandevent.h"
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#include "rs_arc.h"
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#include "rs_line.h"
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#include "rs_polyline.h"
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#include "rs_coordinateevent.h"
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#include "rs_math.h"
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#include "rs_preview.h"
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#include "rs_debug.h"
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#ifdef EMU_C99
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#include "emu_c99.h"
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#endif
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struct RS_ActionDrawPolyline::Points {
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/**
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* Line data defined so far.
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*/
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RS_PolylineData data;
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RS_ArcData arc_data;
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/**
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* Polyline entity we're working on.
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*/
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RS_Polyline* polyline;
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/**
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* last point.
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*/
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RS_Vector point;
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RS_Vector calculatedEndpoint;
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/**
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* Start point of the series of lines. Used for close function.
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*/
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RS_Vector start;
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/**
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* Point history (for undo)
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*/
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QList<RS_Vector> history;
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/**
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* Bulge history (for undo)
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*/
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QList<double> bHistory;
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};
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RS_ActionDrawPolyline::RS_ActionDrawPolyline(RS_EntityContainer& container,
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RS_GraphicView& graphicView)
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:RS_PreviewActionInterface("Draw polylines",
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container, graphicView)
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,m_Reversed(1)
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, pPoints(new Points{})
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{
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actionType=RS2::ActionDrawPolyline;
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reset();
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}
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RS_ActionDrawPolyline::~RS_ActionDrawPolyline() = default;
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void RS_ActionDrawPolyline::reset() {
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pPoints->polyline = nullptr;
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pPoints->data = { {}, {}, false};
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pPoints->start = {};
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pPoints->history.clear();
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pPoints->bHistory.clear();
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}
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void RS_ActionDrawPolyline::init(int status) {
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reset();
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RS_PreviewActionInterface::init(status);
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}
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void RS_ActionDrawPolyline::trigger() {
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RS_PreviewActionInterface::trigger();
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if (!pPoints->polyline) return;
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// add the entity
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//RS_Polyline* polyline = new RS_Polyline(container, data);
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//polyline->setLayerToActive();
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//polyline->setPenToActive();
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//container->addEntity(polyline);
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// upd. undo list:
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if (document) {
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document->startUndoCycle();
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document->addUndoable(pPoints->polyline);
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document->endUndoCycle();
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}
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// upd view
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deleteSnapper();
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graphicView->moveRelativeZero({0.,0.});
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graphicView->drawEntity(pPoints->polyline);
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graphicView->moveRelativeZero(pPoints->polyline->getEndpoint());
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drawSnapper();
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RS_DEBUG->print("RS_ActionDrawLinePolyline::trigger(): polyline added: %d",
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pPoints->polyline->getId());
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pPoints->polyline = nullptr;
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}
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void RS_ActionDrawPolyline::mouseMoveEvent(QMouseEvent* e) {
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RS_DEBUG->print("RS_ActionDrawLinePolyline::mouseMoveEvent begin");
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RS_Vector mouse = snapPoint(e);
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double bulge=solveBulge(mouse);
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if (getStatus()==SetNextPoint && pPoints->point.valid) {
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deletePreview();
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// clearPreview();
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//RS_Polyline* p = polyline->clone();
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//p->reparent(preview);
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//preview->addEntity(p);
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if (fabs(bulge)<RS_TOLERANCE || Mode==Line) {
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preview->addEntity(new RS_Line{preview.get(), pPoints->point, mouse});
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} else
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preview->addEntity(new RS_Arc(preview.get(), pPoints->arc_data));
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drawPreview();
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}
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RS_DEBUG->print("RS_ActionDrawLinePolyline::mouseMoveEvent end");
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}
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void RS_ActionDrawPolyline::mouseReleaseEvent(QMouseEvent* e) {
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if (e->button()==Qt::LeftButton) {
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RS_CoordinateEvent ce(snapPoint(e));
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coordinateEvent(&ce);
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} else if (e->button()==Qt::RightButton) {
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if (getStatus()==SetNextPoint) {
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trigger();
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}
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deletePreview();
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// clearPreview();
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deleteSnapper();
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init(getStatus()-1);
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}
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}
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double RS_ActionDrawPolyline::solveBulge(RS_Vector mouse) {
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double b(0.);
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bool suc;
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RS_Arc arc{};
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RS_Line line{};
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double direction;
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RS_AtomicEntity* lastentity;
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calculatedSegment=false;
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switch (Mode){
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// case Line:
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// b=0.0;
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// break;
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case Tangential:
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if (pPoints->polyline){
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lastentity = static_cast<RS_AtomicEntity*>(pPoints->polyline->lastEntity());
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direction = RS_Math::correctAngle(
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lastentity->getDirection2()+M_PI);
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line.setStartpoint(pPoints->point);
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line.setEndpoint(mouse);
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double const direction2=RS_Math::correctAngle(line.getDirection2()+M_PI);
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double const delta=direction2-direction;
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if( fabs(remainder(delta,M_PI))>RS_TOLERANCE_ANGLE ) {
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b=tan(delta/2);
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suc = arc.createFrom2PBulge(pPoints->point,mouse,b);
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if (suc)
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pPoints->arc_data = arc.getData();
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else
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b=0;
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}
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break;
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// if(delta<RS_TOLERANCE_ANGLE ||
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// (delta<M_PI+RS_TOLERANCE_ANGLE &&
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// delta>M_PI-RS_TOLERANCE_ANGLE))
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// b=0;
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// else{
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// b=tan((direction2-direction)/2);
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// suc = arc.createFrom2PBulge(point,mouse,b);
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// if (suc)
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// arc_data = arc.getData();
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// else
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// b=0;
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// }
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}
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// else
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// b=0;
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// break;
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// fall-through
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case TanRad:
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if (pPoints->polyline){
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lastentity = static_cast<RS_AtomicEntity*>(pPoints->polyline->lastEntity());
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direction = RS_Math::correctAngle(
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lastentity->getDirection2()+M_PI);
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suc = arc.createFrom2PDirectionRadius(pPoints->point, mouse,
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direction,Radius);
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if (suc){
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pPoints->arc_data = arc.getData();
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b=arc.getBulge();
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pPoints->calculatedEndpoint = arc.getEndpoint();
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calculatedSegment=true;
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}
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// else
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// b=0;
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}
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// else
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// b=0;
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break;
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/* case TanAng:
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b=tan(Reversed*Angle*M_PI/720.0);
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break;
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case TanRadAng:
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b=tan(Reversed*Angle*M_PI/720.0);
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break;*/
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case Ang:
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b=tan(m_Reversed*Angle*M_PI/720.0);
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suc = arc.createFrom2PBulge(pPoints->point,mouse,b);
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if (suc)
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pPoints->arc_data = arc.getData();
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else
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b=0;
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break;
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default:
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break;
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/* case RadAngEndp:
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b=tan(Reversed*Angle*M_PI/720.0);
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break;
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case RadAngCenp:
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b=tan(Reversed*Angle*M_PI/720.0);*/
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}
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return b;
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}
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void RS_ActionDrawPolyline::coordinateEvent(RS_CoordinateEvent* e) {
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if (!e) {
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return;
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}
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RS_Vector mouse = e->getCoordinate();
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double bulge=solveBulge(mouse);
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if (calculatedSegment)
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mouse=pPoints->calculatedEndpoint;
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switch (getStatus()) {
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case SetStartpoint:
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// data.startpoint = mouse;
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//printf ("SetStartpoint\n");
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pPoints->point = mouse;
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pPoints->history.clear();
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pPoints->history.append(mouse);
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pPoints->bHistory.clear();
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pPoints->bHistory.append(0.0);
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pPoints->start = pPoints->point;
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setStatus(SetNextPoint);
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graphicView->moveRelativeZero(mouse);
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updateMouseButtonHints();
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break;
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case SetNextPoint:
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graphicView->moveRelativeZero(mouse);
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pPoints->point = mouse;
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pPoints->history.append(mouse);
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pPoints->bHistory.append(bulge);
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if (!pPoints->polyline) {
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pPoints->polyline = new RS_Polyline(container, pPoints->data);
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pPoints->polyline->addVertex(pPoints->start, 0.0);
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}
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if (pPoints->polyline) {
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pPoints->polyline->setNextBulge(bulge);
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pPoints->polyline->addVertex(mouse, 0.0);
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pPoints->polyline->setEndpoint(mouse);
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if (pPoints->polyline->count()==1) {
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pPoints->polyline->setLayerToActive();
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pPoints->polyline->setPenToActive();
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container->addEntity(pPoints->polyline);
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}
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deletePreview();
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// clearPreview();
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deleteSnapper();
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graphicView->drawEntity(pPoints->polyline);
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drawSnapper();
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}
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//trigger();
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//data.startpoint = data.endpoint;
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updateMouseButtonHints();
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//graphicView->moveRelativeZero(mouse);
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break;
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default:
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break;
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}
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}
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void RS_ActionDrawPolyline::setMode(SegmentMode m) {
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Mode=m;
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}
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int RS_ActionDrawPolyline::getMode() const{
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return Mode;
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}
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void RS_ActionDrawPolyline::setRadius(double r) {
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Radius=r;
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}
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double RS_ActionDrawPolyline::getRadius() const{
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return Radius;
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}
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void RS_ActionDrawPolyline::setAngle(double a) {
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Angle=a;
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}
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double RS_ActionDrawPolyline::getAngle() const{
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return Angle;
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}
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void RS_ActionDrawPolyline::setReversed( bool c) {
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m_Reversed=c?-1:1;
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}
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bool RS_ActionDrawPolyline::isReversed() const{
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return m_Reversed==-1;
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}
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void RS_ActionDrawPolyline::commandEvent(RS_CommandEvent* e) {
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QString c = e->getCommand().toLower();
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switch (getStatus()) {
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case SetStartpoint:
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if (checkCommand("help", c)) {
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RS_DIALOGFACTORY->commandMessage(msgAvailableCommands()
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+ getAvailableCommands().join(", "));
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return;
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}
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break;
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case SetNextPoint:
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if (checkCommand("close", c)) {
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close();
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e->accept();
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updateMouseButtonHints();
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return;
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}
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if (checkCommand("undo", c)) {
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undo();
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e->accept();
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updateMouseButtonHints();
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return;
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}
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break;
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default:
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break;
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}
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}
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QStringList RS_ActionDrawPolyline::getAvailableCommands() {
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QStringList cmd;
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switch (getStatus()) {
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case SetStartpoint:
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break;
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case SetNextPoint:
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if (pPoints->history.size()>=2) {
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cmd += command("undo");
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}
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if (pPoints->history.size()>=3) {
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cmd += command("close");
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}
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break;
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default:
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break;
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}
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return cmd;
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}
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void RS_ActionDrawPolyline::updateMouseButtonHints() {
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switch (getStatus()) {
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case SetStartpoint:
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RS_DIALOGFACTORY->updateMouseWidget(tr("Specify first point"),
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tr("Cancel"));
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break;
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case SetNextPoint: {
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QString msg = "";
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if (pPoints->history.size()>=3) {
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msg += RS_COMMANDS->command("close");
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msg += "/";
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}
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if (pPoints->history.size()>=2) {
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msg += RS_COMMANDS->command("undo");
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}
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if (pPoints->history.size()>=2) {
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RS_DIALOGFACTORY->updateMouseWidget(
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tr("Specify next point or [%1]").arg(msg),
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tr("Back"));
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} else {
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RS_DIALOGFACTORY->updateMouseWidget(
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tr("Specify next point"),
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tr("Back"));
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}
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}
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break;
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default:
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RS_DIALOGFACTORY->updateMouseWidget();
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break;
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}
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}
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void RS_ActionDrawPolyline::showOptions() {
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RS_ActionInterface::showOptions();
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RS_DIALOGFACTORY->requestOptions(this, true);
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}
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void RS_ActionDrawPolyline::hideOptions() {
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RS_ActionInterface::hideOptions();
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RS_DIALOGFACTORY->requestOptions(this, false);
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}
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void RS_ActionDrawPolyline::updateMouseCursor() {
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graphicView->setMouseCursor(RS2::CadCursor);
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}
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void RS_ActionDrawPolyline::close() {
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if (pPoints->history.size()>2 && pPoints->start.valid) {
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//data.endpoint = start;
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//trigger();
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if (pPoints->polyline) {
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if (Mode==TanRad)
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Mode=Line;
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RS_CoordinateEvent e(pPoints->polyline->getStartpoint());
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coordinateEvent(&e);
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pPoints->polyline->setClosed(true);
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}
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trigger();
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setStatus(SetStartpoint);
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graphicView->moveRelativeZero(pPoints->start);
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} else {
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RS_DIALOGFACTORY->commandMessage(
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tr("Cannot close sequence of lines: "
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"Not enough entities defined yet."));
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}
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}
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void RS_ActionDrawPolyline::undo() {
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if (pPoints->history.size()>1) {
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pPoints->history.removeLast();
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pPoints->bHistory.removeLast();
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deletePreview();
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pPoints->point = pPoints->history.last();
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if(pPoints->history.size()==1){
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graphicView->moveRelativeZero(pPoints->history.front());
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//remove polyline from container,
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//container calls delete over polyline
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container->removeEntity(pPoints->polyline);
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pPoints->polyline = nullptr;
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graphicView->drawEntity(pPoints->polyline);
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}
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if (pPoints->polyline) {
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pPoints->polyline->removeLastVertex();
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graphicView->moveRelativeZero(pPoints->polyline->getEndpoint());
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graphicView->drawEntity(pPoints->polyline);
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}
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} else {
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RS_DIALOGFACTORY->commandMessage(
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tr("Cannot undo: "
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"Not enough entities defined yet."));
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}
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}
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// EOF
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