651 lines
17 KiB
C++
651 lines
17 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 <QRegExp>
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#include <QAction>
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#include <QMouseEvent>
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#include "rs_eventhandler.h"
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#include "rs_actioninterface.h"
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#include "rs_dialogfactory.h"
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#include "rs_commandevent.h"
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#include "rs_coordinateevent.h"
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#include "rs_commands.h"
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#include "rs_math.h"
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#include "rs_snapper.h"
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#include "rs_debug.h"
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/**
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* Constructor.
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*/
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RS_EventHandler::RS_EventHandler(QObject* parent) : QObject(parent)
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{
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connect(parent, SIGNAL(relative_zero_changed(const RS_Vector&)),
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this, SLOT(setRelativeZero(const RS_Vector&)));
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}
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/**
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* Destructor.
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*/
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RS_EventHandler::~RS_EventHandler() {
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RS_DEBUG->print("RS_EventHandler::~RS_EventHandler");
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delete defaultAction;
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defaultAction = nullptr;
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RS_DEBUG->print("RS_EventHandler::~RS_EventHandler: Deleting all actions..");
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for(auto a: currentActions){
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delete a;
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}
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currentActions.clear();
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RS_DEBUG->print("RS_EventHandler::~RS_EventHandler: Deleting all actions..: OK");
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RS_DEBUG->print("RS_EventHandler::~RS_EventHandler: OK");
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}
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/**
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* Go back in current action.
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*/
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void RS_EventHandler::back() {
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QMouseEvent e(QEvent::MouseButtonRelease, QPoint(0,0),
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Qt::RightButton, Qt::RightButton,Qt::NoModifier);
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mouseReleaseEvent(&e);
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if (!hasAction() && q_action)
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{
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q_action->setChecked(false);
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q_action = nullptr;
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}
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}
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/**
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* Go enter pressed event for current action.
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*/
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void RS_EventHandler::enter() {
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QKeyEvent e(QEvent::KeyPress, Qt::Key_Enter, 0);
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keyPressEvent(&e);
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::mousePressEvent(QMouseEvent* e) {
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if(hasAction()){
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currentActions.last()->mousePressEvent(e);
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e->accept();
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} else {
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if (defaultAction) {
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defaultAction->mousePressEvent(e);
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e->accept();
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} else {
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RS_DEBUG->print("currently no action defined");
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e->ignore();
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}
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}
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::mouseReleaseEvent(QMouseEvent* e) {
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if(hasAction()){
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// if (actionIndex>=0 && currentActions[actionIndex] &&
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// !currentActions[actionIndex]->isFinished()) {
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RS_DEBUG->print("call action %s",
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currentActions.last()->getName().toLatin1().data());
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currentActions.last()->mouseReleaseEvent(e);
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// Clean up actions - one might be finished now
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cleanUp();
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e->accept();
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} else {
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if (defaultAction) {
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defaultAction->mouseReleaseEvent(e);
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} else {
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e->ignore();
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}
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}
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::mouseMoveEvent(QMouseEvent* e)
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{
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if(hasAction())
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currentActions.last()->mouseMoveEvent(e);
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else if (defaultAction)
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defaultAction->mouseMoveEvent(e);
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::mouseLeaveEvent() {
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if(hasAction()){
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currentActions.last()->suspend();
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} else {
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if (defaultAction) {
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defaultAction->suspend();
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}
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//RS_DEBUG->print("currently no action defined");
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}
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::mouseEnterEvent() {
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if(hasAction()){
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currentActions.last()->resume();
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} else {
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if (defaultAction) {
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defaultAction->resume();
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}
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}
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::keyPressEvent(QKeyEvent* e) {
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if(hasAction()){
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currentActions.last()->keyPressEvent(e);
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} else {
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if (defaultAction) {
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defaultAction->keyPressEvent(e);
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}
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else {
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e->ignore();
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}
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//RS_DEBUG->print("currently no action defined");
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}
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}
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/**
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* Called by QG_GraphicView
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*/
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void RS_EventHandler::keyReleaseEvent(QKeyEvent* e) {
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if(hasAction()){
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currentActions.last()->keyReleaseEvent(e);
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} else {
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if (defaultAction) {
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defaultAction->keyReleaseEvent(e);
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}
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else {
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e->ignore();
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}
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//RS_DEBUG->print("currently no action defined");
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}
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}
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/**
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* Handles command line events.
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*/
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void RS_EventHandler::commandEvent(RS_CommandEvent* e) {
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RS_DEBUG->print("RS_EventHandler::commandEvent");
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QString cmd = e->getCommand();
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if (coordinateInputEnabled) {
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if (!e->isAccepted()) {
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if(hasAction()){
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// handle absolute cartesian coordinate input:
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if (cmd.contains(',') && cmd.at(0)!='@') {
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int commaPos = cmd.indexOf(',');
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RS_DEBUG->print("RS_EventHandler::commandEvent: 001");
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bool ok1, ok2;
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RS_DEBUG->print("RS_EventHandler::commandEvent: 002");
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double x = RS_Math::eval(cmd.left(commaPos), &ok1);
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RS_DEBUG->print("RS_EventHandler::commandEvent: 003a");
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double y = RS_Math::eval(cmd.mid(commaPos+1), &ok2);
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RS_DEBUG->print("RS_EventHandler::commandEvent: 004");
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if (ok1 && ok2) {
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RS_DEBUG->print("RS_EventHandler::commandEvent: 005");
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RS_CoordinateEvent ce(RS_Vector(x,y));
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RS_DEBUG->print("RS_EventHandler::commandEvent: 006");
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currentActions.last()->coordinateEvent(&ce);
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} else
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RS_DIALOGFACTORY->commandMessage(
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"Expression Syntax Error");
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e->accept();
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}
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// handle relative cartesian coordinate input:
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if (!e->isAccepted()) {
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if (cmd.contains(',') && cmd.at(0)=='@') {
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int commaPos = cmd.indexOf(',');
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bool ok1, ok2;
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double x = RS_Math::eval(cmd.mid(1, commaPos-1), &ok1);
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double y = RS_Math::eval(cmd.mid(commaPos+1), &ok2);
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if (ok1 && ok2) {
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RS_CoordinateEvent ce(RS_Vector(x,y) + relative_zero);
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currentActions.last()->coordinateEvent(&ce);
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// currentActions[actionIndex]->coordinateEvent(&ce);
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} else
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RS_DIALOGFACTORY->commandMessage(
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"Expression Syntax Error");
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e->accept();
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}
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}
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// handle absolute polar coordinate input:
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if (!e->isAccepted()) {
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if (cmd.contains('<') && cmd.at(0)!='@') {
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int commaPos = cmd.indexOf('<');
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bool ok1, ok2;
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double r = RS_Math::eval(cmd.left(commaPos), &ok1);
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double a = RS_Math::eval(cmd.mid(commaPos+1), &ok2);
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if (ok1 && ok2) {
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RS_Vector pos{
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RS_Vector::polar(r,RS_Math::deg2rad(a))};
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RS_CoordinateEvent ce(pos);
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currentActions.last()->coordinateEvent(&ce);
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} else
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RS_DIALOGFACTORY->commandMessage(
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"Expression Syntax Error");
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e->accept();
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}
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}
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// handle relative polar coordinate input:
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if (!e->isAccepted()) {
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if (cmd.contains('<') && cmd.at(0)=='@') {
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int commaPos = cmd.indexOf('<');
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bool ok1, ok2;
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double r = RS_Math::eval(cmd.mid(1, commaPos-1), &ok1);
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double a = RS_Math::eval(cmd.mid(commaPos+1), &ok2);
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if (ok1 && ok2) {
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RS_Vector pos = RS_Vector::polar(r,RS_Math::deg2rad(a));
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RS_CoordinateEvent ce(pos + relative_zero);
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currentActions.last()->coordinateEvent(&ce);
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} else
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RS_DIALOGFACTORY->commandMessage(
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"Expression Syntax Error");
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e->accept();
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}
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}
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// send command event directly to current action:
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if (!e->isAccepted()) {
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// std::cout<<"RS_EventHandler::commandEvent(RS_CommandEvent* e): sending cmd("<<qPrintable(e->getCommand()) <<") to action: "<<currentActions.last()->rtti()<<std::endl;
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currentActions.last()->commandEvent(e);
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}
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}else{
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//send the command to default action
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if (defaultAction) {
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defaultAction->commandEvent(e);
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}
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}
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// do not accept command here. Actions themselves should be responsible to accept commands
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// e->accept();
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}
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}
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RS_DEBUG->print("RS_EventHandler::commandEvent: OK");
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}
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/**
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* Enables coordinate input in the command line.
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*/
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void RS_EventHandler::enableCoordinateInput() {
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coordinateInputEnabled = true;
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}
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/**
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* Enables coordinate input in the command line.
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*/
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void RS_EventHandler::disableCoordinateInput() {
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coordinateInputEnabled = false;
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}
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/**
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* @return Current action.
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*/
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RS_ActionInterface* RS_EventHandler::getCurrentAction(){
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if(hasAction()){
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return currentActions.last();
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} else {
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return defaultAction;
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}
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}
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/**
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* @return The current default action.
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*/
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RS_ActionInterface* RS_EventHandler::getDefaultAction() const{
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return defaultAction;
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}
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/**
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* Sets the default action.
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*/
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void RS_EventHandler::setDefaultAction(RS_ActionInterface* action) {
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if (defaultAction) {
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defaultAction->finish();
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delete defaultAction;
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// defaultAction = NULL;
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}
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defaultAction = action;
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}
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/**
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* Sets the current action.
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*/
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void RS_EventHandler::setCurrentAction(RS_ActionInterface* action) {
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RS_DEBUG->print("RS_EventHandler::setCurrentAction");
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if (action==NULL) {
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return;
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}
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// Predecessor of the new action or NULL:
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RS_ActionInterface* predecessor = NULL;
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// Suspend current action:
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if(hasAction()){
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predecessor = currentActions.last();
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predecessor->suspend();
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predecessor->hideOptions();
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}
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else {
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if (defaultAction) {
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predecessor = defaultAction;
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predecessor->suspend();
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predecessor->hideOptions();
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}
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}
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// // Forget about the oldest action and make space for the new action:
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// if (actionIndex==RS_MAXACTIONS-1) {
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// // delete oldest action if necessary (usually never happens):
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// if (currentActions[0]) {
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// currentActions[0]->finish();
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// delete currentActions[0];
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// currentActions[0] = NULL;
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// }
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// // Move up actionstack (optimize):
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// for (int i=0; i<RS_MAXACTIONS-1; ++i) {
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// currentActions[i] = currentActions[i+1];
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// }
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// } else if (actionIndex<RS_MAXACTIONS-1) {
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// actionIndex++;
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// }
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// Set current action:
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currentActions.push_back(action);
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RS_DEBUG->print("RS_EventHandler::setCurrentAction: current action is: %s",
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currentActions.last()->getName().toLatin1().data());
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// Initialisation of our new action:
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RS_DEBUG->print("RS_EventHandler::setCurrentAction: init current action");
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action->init();
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// ## new:
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if (action->isFinished()==false) {
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RS_DEBUG->print("RS_EventHandler::setCurrentAction: show options");
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currentActions.last()->showOptions();
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RS_DEBUG->print("RS_EventHandler::setCurrentAction: set predecessor");
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action->setPredecessor(predecessor);
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}
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RS_DEBUG->print("RS_EventHandler::setCurrentAction: cleaning up..");
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cleanUp();
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RS_DEBUG->print("RS_EventHandler::setCurrentAction: debugging actions");
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debugActions();
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RS_DEBUG->print("RS_GraphicView::setCurrentAction: OK");
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if (q_action)
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q_action->setChecked(true);
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}
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/**
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* Kills all running selection actions. Called when a selection action
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* is launched to reduce confusion.
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*/
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void RS_EventHandler::killSelectActions() {
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for (auto it=currentActions.begin();it != currentActions.end();){
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if ((*it)->rtti()==RS2::ActionSelectSingle ||
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(*it)->rtti()==RS2::ActionSelectContour ||
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(*it)->rtti()==RS2::ActionSelectWindow ||
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(*it)->rtti()==RS2::ActionSelectIntersected ||
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(*it)->rtti()==RS2::ActionSelectLayer) {
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if( ! (*it)->isFinished()){
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(*it)->finish();
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}
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delete *it;
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it= currentActions.erase(it);
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}else{
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it++;
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}
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}
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}
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/**
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* Kills all running actions. Called when a window is closed.
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*/
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void RS_EventHandler::killAllActions()
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{
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RS_DEBUG->print(__FILE__ ": %s: line %d: begin\n", __func__, __LINE__);
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if (q_action)
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{
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q_action->setChecked(false);
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q_action = nullptr;
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}
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for(auto p: currentActions)
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{
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if (!p->isFinished())
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{
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p->finish();
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}
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}
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if (!defaultAction->isFinished())
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{
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defaultAction->finish();
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}
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RS_DEBUG->print(__FILE__ ": %s: line %d: begin\n", __func__, __LINE__);
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defaultAction->init(0);
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}
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/**
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* @return true if the action is within currentActions
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*/
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bool RS_EventHandler::isValid(RS_ActionInterface* action) const{
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return currentActions.indexOf(action) >= 0;
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}
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/**
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* @return true if there is at least one action in the action stack.
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*/
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bool RS_EventHandler::hasAction()
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{
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foreach (RS_ActionInterface* a, currentActions)
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{
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if(!a->isFinished())
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return true;
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}
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return false;
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}
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/**
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* Garbage collector for actions.
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*/
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void RS_EventHandler::cleanUp() {
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RS_DEBUG->print("RS_EventHandler::cleanUp");
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for (auto it=currentActions.begin(); it != currentActions.end();)
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{
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if( (*it)->isFinished())
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{
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delete *it;
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it= currentActions.erase(it);
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}else{
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++it;
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}
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}
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if(hasAction()){
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currentActions.last()->resume();
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currentActions.last()->showOptions();
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} else {
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if (defaultAction) {
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defaultAction->resume();
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defaultAction->showOptions();
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}
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}
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RS_DEBUG->print("RS_EventHandler::cleanUp: OK");
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}
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/**
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* Sets the snap mode for all currently active actions.
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*/
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void RS_EventHandler::setSnapMode(RS_SnapMode sm) {
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for(auto a: currentActions){
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if( ! a->isFinished()){
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a->setSnapMode(sm);
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}
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}
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if (defaultAction) {
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defaultAction->setSnapMode(sm);
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}
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}
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/**
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* Sets the snap restriction for all currently active actions.
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*/
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void RS_EventHandler::setSnapRestriction(RS2::SnapRestriction sr) {
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for(auto a: currentActions){
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if( ! a->isFinished()){
|
|
a->setSnapRestriction(sr);
|
|
}
|
|
}
|
|
|
|
if (defaultAction) {
|
|
defaultAction->setSnapRestriction(sr);
|
|
}
|
|
}
|
|
|
|
|
|
void RS_EventHandler::debugActions() const{
|
|
// std::cout<<"action queue size=:"<<currentActions.size()<<std::endl;
|
|
RS_DEBUG->print("---");
|
|
for(int i=0;i<currentActions.size();++i){
|
|
|
|
if (i == currentActions.size() - 1 ) {
|
|
RS_DEBUG->print("Current");
|
|
}
|
|
RS_DEBUG->print("Action %03d: %s [%s]",
|
|
i, currentActions.at(i)->getName().toLatin1().data(),
|
|
currentActions.at(i)->isFinished() ? "finished" : "active");
|
|
}
|
|
}
|
|
|
|
void RS_EventHandler::setQAction(QAction* action)
|
|
{
|
|
if (q_action)
|
|
{
|
|
q_action->setChecked(false);
|
|
killAllActions();
|
|
}
|
|
q_action = action;
|
|
}
|
|
|
|
void RS_EventHandler::setRelativeZero(const RS_Vector& point)
|
|
{
|
|
relative_zero = point;
|
|
}
|
|
|
|
bool RS_EventHandler::inSelectionMode()
|
|
{
|
|
switch (getCurrentAction()->rtti())
|
|
{
|
|
case RS2::ActionDefault:
|
|
case RS2::ActionSelectSingle:
|
|
case RS2::ActionSelectWindow:
|
|
case RS2::ActionDeselectWindow:
|
|
case RS2::ActionSelectContour:
|
|
case RS2::ActionSelectIntersected:
|
|
case RS2::ActionDeselectIntersected:
|
|
case RS2::ActionSelectLayer:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// EOF
|