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newspark110/actions/rs_actiondrawcircletan2.cpp
Chenwenxuan edac2715f0 init
2024-03-06 14:54:30 +08:00

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8.7 KiB
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/****************************************************************************
**
* Draw circle by foci and a point on circle
Copyright (C) 2012 Dongxu Li (dongxuli2011@gmail.com)
Copyright (C) 2011 R. van Twisk (librecad@rvt.dds.nl)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
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.
**********************************************************************/
#include<vector>
#include<QAction>
#include <QMouseEvent>
#include "rs_actiondrawcircletan2.h"
#include "rs_dialogfactory.h"
#include "rs_graphicview.h"
#include "rs_commandevent.h"
#include "rs_circle.h"
#include "rs_point.h"
#include "rs_preview.h"
#include "rs_debug.h"
struct RS_ActionDrawCircleTan2::Points {
RS_CircleData cData;
RS_Vector coord;
double radius{0.};
bool valid{false};
RS_VectorSolutions centers;
std::vector<RS_AtomicEntity*> circles;
};
/**
* Constructor.
*
*/
RS_ActionDrawCircleTan2::RS_ActionDrawCircleTan2(
RS_EntityContainer& container,
RS_GraphicView& graphicView)
:RS_PreviewActionInterface("Draw circle inscribed",
container, graphicView)
, pPoints(new Points{})
{
actionType=RS2::ActionDrawCircleTan2;
}
RS_ActionDrawCircleTan2::~RS_ActionDrawCircleTan2() = default;
void RS_ActionDrawCircleTan2::init(int status) {
RS_PreviewActionInterface::init(status);
if(status>=0) {
RS_Snapper::suspend();
}
if (status==SetCircle1) {
pPoints->circles.clear();
}
}
void RS_ActionDrawCircleTan2::finish(bool updateTB){
if(pPoints->circles.size()>0){
for(auto p: pPoints->circles){
if(p) p->setHighlighted(false);
}
graphicView->redraw(RS2::RedrawDrawing);
pPoints->circles.clear();
}
RS_PreviewActionInterface::finish(updateTB);
}
void RS_ActionDrawCircleTan2::trigger() {
RS_PreviewActionInterface::trigger();
RS_Circle* circle=new RS_Circle(container, pPoints->cData);
container->addEntity(circle);
// upd. undo list:
if (document) {
document->startUndoCycle();
document->addUndoable(circle);
document->endUndoCycle();
}
for(auto p: pPoints->circles)
p->setHighlighted(false);
graphicView->redraw(RS2::RedrawDrawing);
// drawSnapper();
pPoints->circles.clear();
setStatus(SetCircle1);
RS_DEBUG->print("RS_ActionDrawCircleTan2::trigger():"
" entity added: %d", circle->getId());
}
void RS_ActionDrawCircleTan2::mouseMoveEvent(QMouseEvent* e) {
RS_DEBUG->print("RS_ActionDrawCircleTan2::mouseMoveEvent begin");
switch(getStatus() ){
case SetCenter: {
// RS_Entity* en = catchEntity(e, enTypeList, RS2::ResolveAll);
pPoints->coord= graphicView->toGraph(e->x(), e->y());
// circles[getStatus()]=static_cast<RS_Line*>(en);
if(preparePreview()) {
deletePreview();
RS_Circle* e=new RS_Circle(preview.get(), pPoints->cData);
preview->addEntity(e);
for(size_t i=0; i< pPoints->centers.size(); ++i){
preview->addEntity(new RS_Point(preview.get(), RS_PointData(pPoints->centers.at(i))));
}
drawPreview();
}
}
break;
default:
break;
}
RS_DEBUG->print("RS_ActionDrawCircleTan2::mouseMoveEvent end");
}
void RS_ActionDrawCircleTan2::setRadius(const double& r)
{
pPoints->cData.radius=r;
if(getStatus() == SetCenter){
pPoints->centers=RS_Circle::createTan2(pPoints->circles,
pPoints->cData.radius);
}
}
bool RS_ActionDrawCircleTan2::getCenters(){
if(getStatus() != SetCircle2) return false;
pPoints->centers=RS_Circle::createTan2(pPoints->circles,
pPoints->cData.radius);
pPoints->valid= (pPoints->centers.size()>0);
return pPoints->valid;
}
bool RS_ActionDrawCircleTan2::preparePreview(){
if (pPoints->valid) {
pPoints->cData.center=pPoints->centers.getClosest(pPoints->coord);
}
return pPoints->valid;
}
RS_Entity* RS_ActionDrawCircleTan2::catchCircle(QMouseEvent* e) {
RS_Entity* en = catchEntity(e,enTypeList, RS2::ResolveAll);
if (!en) return nullptr;
if (!en->isVisible()) return nullptr;
for (int i=0;i<getStatus();i++) {
if(en->getId() == pPoints->circles[i]->getId()) return nullptr; //do not pull in the same line again
}
if(en->getParent()) {
if ( en->getParent()->ignoredOnModification()){
return nullptr;
}
}
return en;
}
void RS_ActionDrawCircleTan2::mouseReleaseEvent(QMouseEvent* e) {
// Proceed to next status
if (e->button()==Qt::LeftButton) {
switch (getStatus()) {
case SetCircle1:
case SetCircle2: {
RS_Entity* en = catchCircle(e);
if (!en) return;
pPoints->circles.resize(getStatus());
pPoints->circles.push_back(static_cast<RS_AtomicEntity*>(en));
if(getStatus()==SetCircle1 || getCenters()){
pPoints->circles.at(pPoints->circles.size()-1)->setHighlighted(true);
graphicView->redraw(RS2::RedrawDrawing);
setStatus(getStatus()+1);
}
}
break;
case SetCenter:
pPoints->coord= graphicView->toGraph(e->x(), e->y());
if( preparePreview()) trigger();
break;
default:
break;
}
} else if (e->button()==Qt::RightButton) {
// Return to last status:
if(getStatus()>0){
pPoints->circles[getStatus()-1]->setHighlighted(false);
pPoints->circles.pop_back();
graphicView->redraw(RS2::RedrawDrawing);
deletePreview();
}
init(getStatus()-1);
}
}
//void RS_ActionDrawCircleTan2::coordinateEvent(RS_CoordinateEvent* e) {
//}
//fixme, support command line
/*
void RS_ActionDrawCircleTan2::commandEvent(RS_CommandEvent* e) {
QString c = e->getCommand().toLower();
if (checkCommand("help", c)) {
RS_DIALOGFACTORY->commandMessage(msgAvailableCommands()
+ getAvailableCommands().join(", "));
return;
}
switch (getStatus()) {
case SetFocus1: {
bool ok;
double m = RS_Math::eval(c, &ok);
if (ok) {
ratio = m / major.magnitude();
if (!isArc) {
trigger();
} else {
setStatus(SetAngle1);
}
} else
RS_DIALOGFACTORY->commandMessage(tr("Not a valid expression"));
}
break;
case SetAngle1: {
bool ok;
double a = RS_Math::eval(c, &ok);
if (ok) {
angle1 = RS_Math::deg2rad(a);
setStatus(SetAngle2);
} else
RS_DIALOGFACTORY->commandMessage(tr("Not a valid expression"));
}
break;
case SetAngle2: {
bool ok;
double a = RS_Math::eval(c, &ok);
if (ok) {
angle2 = RS_Math::deg2rad(a);
trigger();
} else
RS_DIALOGFACTORY->commandMessage(tr("Not a valid expression"));
}
break;
default:
break;
}
}
*/
void RS_ActionDrawCircleTan2::showOptions() {
RS_DEBUG->print("RS_ActionDrawCircleTan2::showOptions");
RS_ActionInterface::showOptions();
RS_DIALOGFACTORY->requestOptions(this, true);
RS_DEBUG->print("RS_ActionDrawCircleTan2::showOptions: OK");
}
void RS_ActionDrawCircleTan2::hideOptions() {
RS_ActionInterface::hideOptions();
RS_DIALOGFACTORY->requestOptions(this, false);
}
QStringList RS_ActionDrawCircleTan2::getAvailableCommands() {
return {};
}
void RS_ActionDrawCircleTan2::updateMouseButtonHints() {
switch (getStatus()) {
case SetCircle1:
RS_DIALOGFACTORY->updateMouseWidget(tr("Specify the first line/arc/circle"),
tr("Cancel"));
break;
case SetCircle2:
RS_DIALOGFACTORY->updateMouseWidget(tr("Specify the second line/arc/circle"),
tr("Back"));
break;
case SetCenter:
RS_DIALOGFACTORY->updateMouseWidget(tr("Select the center of the tangent circle"),
tr("Back"));
break;
default:
RS_DIALOGFACTORY->updateMouseWidget();
break;
}
}
void RS_ActionDrawCircleTan2::updateMouseCursor() {
graphicView->setMouseCursor(RS2::SelectCursor);
}
double RS_ActionDrawCircleTan2::getRadius() const{
return pPoints->cData.radius;
}
// EOF
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