Gestures: inventor touch events and device
This commit is contained in:
DeepSOIC
@@ -769,6 +769,7 @@ SET(Inventor_CPP_SRCS
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SoNavigationDragger.cpp
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SoAxisCrossKit.cpp
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SoTextLabel.cpp
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SoTouchEvents.cpp
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)
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SET(Inventor_SRCS
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${Inventor_CPP_SRCS}
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@@ -790,6 +791,7 @@ SET(Inventor_SRCS
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SoNavigationDragger.h
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SoAxisCrossKit.h
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SoTextLabel.h
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SoTouchEvents.h
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)
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SOURCE_GROUP("View3D\\Inventor" FILES ${Inventor_SRCS})
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188
src/Gui/SoTouchEvents.cpp
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188
src/Gui/SoTouchEvents.cpp
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@@ -0,0 +1,188 @@
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/***************************************************************************
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* Copyright (c) Victor Titov (DeepSOIC) *
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* (vv.titov@gmail.com) 2015 *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#include "SoTouchEvents.h"
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#include <QApplication>
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#include <QGestureEvent>
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#include <Base/Exception.h>
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SO_EVENT_SOURCE(SoGestureEvent);
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SbBool SoGestureEvent::isSoGestureEvent(const SoEvent *ev) const
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{
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return ev->isOfType(SoGestureEvent::getClassTypeId());
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}
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//----------------------------SoGesturePanEvent--------------------------------
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SO_EVENT_SOURCE(SoGesturePanEvent);
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SoGesturePanEvent::SoGesturePanEvent(QPanGesture* qpan, QWidget *widget)
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{
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totalOffset = SbVec2f(qpan->offset().x(), -qpan->offset().y());
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deltaOffset = SbVec2f(qpan->delta().x(), -qpan->delta().y());
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state = SbGestureState(qpan->state());
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Qt::KeyboardModifiers mods = QApplication::keyboardModifiers();
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this->setAltDown(mods.testFlag(Qt::AltModifier));
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this->setCtrlDown(mods.testFlag(Qt::ControlModifier));
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this->setShiftDown(mods.testFlag(Qt::ShiftModifier));
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this->setTime(SbTime::getTimeOfDay());
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}
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SbBool SoGesturePanEvent::isSoGesturePanEvent(const SoEvent *ev) const
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{
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return ev->isOfType(SoGesturePanEvent::getClassTypeId());
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}
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//----------------------------SoGesturePinchEvent--------------------------------
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SO_EVENT_SOURCE(SoGesturePinchEvent);
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SoGesturePinchEvent::SoGesturePinchEvent(QPinchGesture* qpinch, QWidget *widget)
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{
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int h = widget->height();
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QPointF widgetCorner = QPointF(widget->mapToGlobal(QPoint(0,0)));
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qreal scaleToWidget = (widget->mapFromGlobal(QPoint(800,800))-widget->mapFromGlobal(QPoint(0,0))).x()/800;
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QPointF pnt;//temporary
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pnt = qpinch->startCenterPoint();
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pnt = (pnt-widgetCorner)*scaleToWidget;//translate screen coord. into widget coord.
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startCenter = SbVec2f(pnt.x(), h - pnt.y());
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pnt = qpinch->centerPoint();
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pnt = (pnt-widgetCorner)*scaleToWidget;
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curCenter = SbVec2f(pnt.x(), h - pnt.y());
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pnt = qpinch->lastCenterPoint();
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pnt = (pnt-widgetCorner)*scaleToWidget;
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deltaCenter = curCenter - SbVec2f(pnt.x(), h - pnt.y());
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deltaZoom = qpinch->scaleFactor();
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totalZoom = qpinch->totalScaleFactor();
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deltaAngle = qpinch->rotationAngle();
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totalAngle = qpinch->totalRotationAngle();
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state = SbGestureState(qpinch->state());
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this->setPosition(SbVec2s(curCenter));
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Qt::KeyboardModifiers mods = QApplication::keyboardModifiers();
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this->setAltDown(mods.testFlag(Qt::AltModifier));
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this->setCtrlDown(mods.testFlag(Qt::ControlModifier));
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this->setShiftDown(mods.testFlag(Qt::ShiftModifier));
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this->setTime(SbTime::getTimeOfDay());
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}
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SbBool SoGesturePinchEvent::isSoGesturePinchEvent(const SoEvent *ev) const
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{
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return ev->isOfType(SoGesturePinchEvent::getClassTypeId());
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}
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//----------------------------SoGestureSwipeEvent--------------------------------
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SO_EVENT_SOURCE(SoGestureSwipeEvent);
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SoGestureSwipeEvent::SoGestureSwipeEvent(QSwipeGesture *qwsipe, QWidget *widget)
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{
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angle = qwsipe->swipeAngle();
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switch (qwsipe->verticalDirection()){
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case QSwipeGesture::Up :
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vertDir = +1;
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break;
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case QSwipeGesture::Down :
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vertDir = -1;
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break;
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default:
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vertDir = 0;
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break;
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}
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switch (qwsipe->horizontalDirection()){
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case QSwipeGesture::Right :
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vertDir = +1;
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break;
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case QSwipeGesture::Left :
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vertDir = -1;
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break;
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default:
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vertDir = 0;
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break;
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}
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state = SbGestureState(qwsipe->state());
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Qt::KeyboardModifiers mods = QApplication::keyboardModifiers();
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this->setAltDown(mods.testFlag(Qt::AltModifier));
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this->setCtrlDown(mods.testFlag(Qt::ControlModifier));
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this->setShiftDown(mods.testFlag(Qt::ShiftModifier));
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this->setTime(SbTime::getTimeOfDay());
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}
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SbBool SoGestureSwipeEvent::isSoGestureSwipeEvent(const SoEvent *ev) const
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{
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return ev->isOfType(SoGestureSwipeEvent::getClassTypeId());
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}
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//----------------------------GesturesDevice-------------------------------
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GesturesDevice::GesturesDevice(QWidget* widget)
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{
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if (SoGestureEvent::getClassTypeId().isBad()){
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SoGestureEvent::initClass();
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SoGesturePanEvent::initClass();
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SoGesturePinchEvent::initClass();
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SoGestureSwipeEvent::initClass();
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}
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if (! widget)
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throw Base::Exception("Can't create a gestures quarter input device without widget (null pointer was passed).");
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this->widget = widget;
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}
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const SoEvent* GesturesDevice::translateEvent(QEvent* event)
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{
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if (event->type() == QEvent::Gesture
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|| event->type() == QEvent::GestureOverride) {
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QGestureEvent* gevent = static_cast<QGestureEvent*>(event);
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QPinchGesture* zg = static_cast<QPinchGesture*>(gevent->gesture(Qt::PinchGesture));
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if(zg){
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gevent->setAccepted(Qt::PinchGesture,true);//prefer it over pan
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return new SoGesturePinchEvent(zg,this->widget);
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}
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QPanGesture* pg = static_cast<QPanGesture*>(gevent->gesture(Qt::PanGesture));
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if(pg){
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gevent->setAccepted(Qt::PanGesture,true);
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return new SoGesturePanEvent(pg,this->widget);
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}
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QSwipeGesture* sg = static_cast<QSwipeGesture*>(gevent->gesture(Qt::SwipeGesture));
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if(sg){
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gevent->setAccepted(Qt::SwipeGesture,true);
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return new SoGesturePanEvent(pg,this->widget);
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}
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}
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return 0;
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}
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116
src/Gui/SoTouchEvents.h
Normal file
116
src/Gui/SoTouchEvents.h
Normal file
@@ -0,0 +1,116 @@
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/***************************************************************************
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* Copyright (c) Victor Titov (DeepSOIC) *
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* (vv.titov@gmail.com) 2015 *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef SOTOUCHEVENTS_H
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#define SOTOUCHEVENTS_H
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#include <qwidget.h>
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#include <qgesture.h>
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#include <InventorAll.h>
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#include <Quarter/devices/InputDevice.h>
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namespace Quarter = SIM::Coin3D::Quarter;
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class SoGestureEvent : public SoEvent {
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SO_EVENT_HEADER();
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public:
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static void initClass(){
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SO_EVENT_INIT_CLASS(SoGestureEvent, SoEvent);
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};
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SoGestureEvent(){};
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~SoGestureEvent(){};
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SbBool isSoGestureEvent(const SoEvent* ev) const;
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enum SbGestureState {
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SbGSNoGesture = Qt::NoGesture,
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SbGSStart = Qt::GestureStarted,
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SbGSUpdate = Qt::GestureUpdated,
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SbGSEnd = Qt::GestureFinished,
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SbGsCanceled = Qt::GestureCanceled
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};
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SbGestureState state;
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};
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class SoGesturePanEvent : public SoGestureEvent {
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SO_EVENT_HEADER();
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public:
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static void initClass(){//needs to be called before the class can be used. Initializes type IDs of the class.
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SO_EVENT_INIT_CLASS(SoGesturePanEvent, SoGestureEvent);
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};
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SoGesturePanEvent() {};
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SoGesturePanEvent(QPanGesture *qpan, QWidget *widget);
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~SoGesturePanEvent(){};
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SbBool isSoGesturePanEvent(const SoEvent* ev) const;
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SbVec2f deltaOffset;
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SbVec2f totalOffset;
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};
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class SoGesturePinchEvent : public SoGestureEvent {
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SO_EVENT_HEADER();
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public:
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static void initClass(){
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SO_EVENT_INIT_CLASS(SoGesturePinchEvent, SoGestureEvent);
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};
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SoGesturePinchEvent(){};
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SoGesturePinchEvent(QPinchGesture* qpinch, QWidget* widget);
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~SoGesturePinchEvent(){};
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SbBool isSoGesturePinchEvent(const SoEvent* ev) const;
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SbVec2f startCenter;//in GL pixel coordinates (from bottom left corner of view area)
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SbVec2f curCenter;
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SbVec2f deltaCenter;
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double deltaZoom;//change of zoom factor (1.0 = no change, >1 - zoom in, 0..1 - zoom out)
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double totalZoom;//zoom factor accumulated since start of gesture.
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double deltaAngle;
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double totalAngle;
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};
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class SoGestureSwipeEvent : public SoGestureEvent {
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SO_EVENT_HEADER();
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public:
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static void initClass(){
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SO_EVENT_INIT_CLASS(SoGestureSwipeEvent, SoGestureEvent);
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};
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SoGestureSwipeEvent(){};
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SoGestureSwipeEvent(QSwipeGesture* qwsipe, QWidget *widget);
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~SoGestureSwipeEvent(){};
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SbBool isSoGestureSwipeEvent(const SoEvent* ev) const;
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double angle;
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int vertDir;//+1,0,-1 up/none/down
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int horzDir;//+1,0,-1 right/none/left
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};
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class GesturesDevice : public Quarter::InputDevice {
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public:
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GesturesDevice(QWidget* widget);//it needs to know the widget to do coordinate translation
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virtual ~GesturesDevice() {}
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virtual const SoEvent* translateEvent(QEvent* event);
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protected:
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QWidget* widget;
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};
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#endif // SOTOUCHEVENTS_H
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@@ -123,6 +123,7 @@
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#include <Inventor/draggers/SoCenterballDragger.h>
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#include <Inventor/annex/Profiler/SoProfiler.h>
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#include <SoTouchEvents.h>
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#include <qgesture.h>
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#include <WinNativeGestureRecognizers.h>
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@@ -482,6 +483,7 @@ void View3DInventorViewer::init()
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viewerEventFilter = new ViewerEventFilter;
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installEventFilter(viewerEventFilter);
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getEventFilter()->registerInputDevice(new SpaceNavigatorDevice);
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getEventFilter()->registerInputDevice(new GesturesDevice(this));
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this->grabGesture(Qt::PanGesture);
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this->grabGesture(Qt::PinchGesture);
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