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Chenwenxuan
262
actions/rs_actiondrawarc3p.cpp
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262
actions/rs_actiondrawarc3p.cpp
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/****************************************************************************
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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 <QAction>
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#include <QMouseEvent>
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#include "rs_actiondrawarc3p.h"
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#include "rs_dialogfactory.h"
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#include "rs_graphicview.h"
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#include "rs_actiondrawarc.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_coordinateevent.h"
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#include "rs_preview.h"
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struct RS_ActionDrawArc3P::Points {
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RS_ArcData data;
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/**
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* 1st point.
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*/
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RS_Vector point1;
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/**
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* 2nd point.
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*/
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RS_Vector point2;
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/**
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* 3rd point.
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*/
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RS_Vector point3;
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};
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RS_ActionDrawArc3P::RS_ActionDrawArc3P(RS_EntityContainer& container,
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RS_GraphicView& graphicView)
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:RS_PreviewActionInterface("Draw arcs 3P",
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container, graphicView)
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, pPoints(new Points())
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{
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actionType=RS2::ActionDrawArc3P;
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reset();
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}
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RS_ActionDrawArc3P::~RS_ActionDrawArc3P() = default;
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void RS_ActionDrawArc3P::reset() {
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pPoints.reset(new Points{});
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}
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void RS_ActionDrawArc3P::init(int status) {
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RS_PreviewActionInterface::init(status);
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//reset();
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}
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void RS_ActionDrawArc3P::trigger() {
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RS_PreviewActionInterface::trigger();
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preparePreview();
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if (pPoints->data.isValid()) {
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RS_Arc* arc = new RS_Arc{container, pPoints->data};
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arc->setLayerToActive();
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arc->setPenToActive();
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container->addEntity(arc);
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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(arc);
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document->endUndoCycle();
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}
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graphicView->redraw(RS2::RedrawDrawing);
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graphicView->moveRelativeZero(arc->getEndpoint());
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setStatus(SetPoint1);
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reset();
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} else {
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//RS_DIALOGFACTORY->requestWarningDialog(tr("Invalid arc data."));
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RS_DIALOGFACTORY->commandMessage(tr("Invalid arc data."));
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}
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}
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void RS_ActionDrawArc3P::preparePreview() {
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pPoints->data = {};
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if (pPoints->point1.valid && pPoints->point2.valid && pPoints->point3.valid) {
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RS_Arc arc(NULL, pPoints->data);
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bool suc = arc.createFrom3P(pPoints->point1, pPoints->point2, pPoints->point3);
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if (suc) {
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pPoints->data = arc.getData();
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}
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}
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}
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void RS_ActionDrawArc3P::mouseMoveEvent(QMouseEvent* e) {
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RS_Vector mouse = snapPoint(e);
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switch (getStatus()) {
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case SetPoint1:
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pPoints->point1 = mouse;
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break;
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case SetPoint2:
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pPoints->point2 = mouse;
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if (pPoints->point1.valid) {
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RS_Line* line = new RS_Line{preview.get(), pPoints->point1, pPoints->point2};
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deletePreview();
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preview->addEntity(line);
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drawPreview();
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}
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break;
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case SetPoint3:
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pPoints->point3 = mouse;
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preparePreview();
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if (pPoints->data.isValid()) {
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RS_Arc* arc = new RS_Arc(preview.get(), pPoints->data);
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deletePreview();
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preview->addEntity(arc);
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drawPreview();
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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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void RS_ActionDrawArc3P::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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deletePreview();
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init(getStatus()-1);
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}
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}
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void RS_ActionDrawArc3P::coordinateEvent(RS_CoordinateEvent* e) {
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if (e==NULL) {
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return;
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}
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RS_Vector mouse = e->getCoordinate();
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switch (getStatus()) {
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case SetPoint1:
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pPoints->point1 = mouse;
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graphicView->moveRelativeZero(mouse);
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setStatus(SetPoint2);
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break;
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case SetPoint2:
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pPoints->point2 = mouse;
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graphicView->moveRelativeZero(mouse);
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setStatus(SetPoint3);
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break;
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case SetPoint3:
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pPoints->point3 = mouse;
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trigger();
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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_ActionDrawArc3P::commandEvent(RS_CommandEvent* e) {
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QString c = e->getCommand().toLower();
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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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if (RS_COMMANDS->checkCommand("center", c, rtti())) {
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finish(false);
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graphicView->setCurrentAction(
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new RS_ActionDrawArc(*container, *graphicView));
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}
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}
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QStringList RS_ActionDrawArc3P::getAvailableCommands() {
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QStringList cmd;
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return cmd;
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}
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void RS_ActionDrawArc3P::updateMouseButtonHints() {
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switch (getStatus()) {
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case SetPoint1:
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RS_DIALOGFACTORY->updateMouseWidget(
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tr("Specify startpoint or [center]"),
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tr("Cancel"));
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break;
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case SetPoint2:
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RS_DIALOGFACTORY->updateMouseWidget(
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tr("Specify second point"), tr("Back"));
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break;
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case SetPoint3:
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RS_DIALOGFACTORY->updateMouseWidget(
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tr("Specify endpoint"), tr("Back"));
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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_ActionDrawArc3P::updateMouseCursor() {
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graphicView->setMouseCursor(RS2::CadCursor);
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}
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// EOF
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