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create/src/Gui/TinkerCADNavigationStyle.cpp

251 lines
9.5 KiB
C++

/***************************************************************************
* Copyright (c) 2021 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <Inventor/nodes/SoCamera.h>
# include <QApplication>
#endif
#include "NavigationStyle.h"
#include "View3DInventorViewer.h"
using namespace Gui;
// ----------------------------------------------------------------------------------
/* TRANSLATOR Gui::TinkerCADNavigationStyle */
TYPESYSTEM_SOURCE(Gui::TinkerCADNavigationStyle, Gui::UserNavigationStyle)
TinkerCADNavigationStyle::TinkerCADNavigationStyle()
{
}
TinkerCADNavigationStyle::~TinkerCADNavigationStyle()
{
}
const char* TinkerCADNavigationStyle::mouseButtons(ViewerMode mode)
{
switch (mode) {
case NavigationStyle::SELECTION:
return QT_TR_NOOP("Press left mouse button");
case NavigationStyle::PANNING:
return QT_TR_NOOP("Press middle mouse button");
case NavigationStyle::DRAGGING:
return QT_TR_NOOP("Press right mouse button");
case NavigationStyle::ZOOMING:
return QT_TR_NOOP("Scroll middle mouse button");
default:
return "No description";
}
}
SbBool TinkerCADNavigationStyle::processSoEvent(const SoEvent * const ev)
{
// Events when in "ready-to-seek" mode are ignored, except those
// which influence the seek mode itself -- these are handled further
// up the inheritance hierarchy.
if (this->isSeekMode()) { return inherited::processSoEvent(ev); }
// Switch off viewing mode
if (!this->isSeekMode() && !this->isAnimating() && this->isViewing())
this->setViewing(false); // by default disable viewing mode to render the scene
const SoType type(ev->getTypeId());
const SbViewportRegion & vp = viewer->getSoRenderManager()->getViewportRegion();
const SbVec2s pos(ev->getPosition());
const SbVec2f posn = normalizePixelPos(pos);
const SbVec2f prevnormalized = this->lastmouseposition;
this->lastmouseposition = posn;
// Set to true if any event processing happened. Note that it is not
// necessary to restrict ourselves to only do one "action" for an
// event, we only need this flag to see if any processing happened
// at all.
SbBool processed = false;
const ViewerMode curmode = this->currentmode;
ViewerMode newmode = curmode;
// Mismatches in state of the modifier keys happens if the user
// presses or releases them outside the viewer window.
syncModifierKeys(ev);
// give the nodes in the foreground root the chance to handle events (e.g color bar)
if (!viewer->isEditing()) {
processed = handleEventInForeground(ev);
if (processed)
return true;
}
// Keyboard handling
if (type.isDerivedFrom(SoKeyboardEvent::getClassTypeId())) {
const SoKeyboardEvent * const event = static_cast<const SoKeyboardEvent *>(ev);
processed = processKeyboardEvent(event);
}
// Mouse Button / Spaceball Button handling
if (type.isDerivedFrom(SoMouseButtonEvent::getClassTypeId())) {
const SoMouseButtonEvent * const event = (const SoMouseButtonEvent *) ev;
const int button = event->getButton();
const SbBool press = event->getState() == SoButtonEvent::DOWN ? true : false;
SbBool canOpenPopupMenu = false;
switch (button) {
case SoMouseButtonEvent::BUTTON1:
this->button1down = press;
if (press && (curmode == NavigationStyle::SEEK_WAIT_MODE)) {
newmode = NavigationStyle::SEEK_MODE;
this->seekToPoint(pos); // implicitly calls interactiveCountInc()
processed = true;
}
else if (viewer->isEditing() && (curmode == NavigationStyle::SPINNING)) {
processed = true;
}
else {
processed = processClickEvent(event);
}
break;
case SoMouseButtonEvent::BUTTON2:
// If we are in edit mode then simply ignore the RMB events
// to pass the event to the base class.
this->button2down = press;
if (press) {
mouseDownConsumedEvent = *event;
mouseDownConsumedEvent.setTime(ev->getTime());
}
else if (mouseDownConsumedEvent.getButton() == SoMouseButtonEvent::BUTTON2) {
SbTime tmp = (ev->getTime() - mouseDownConsumedEvent.getTime());
float dci = float(QApplication::doubleClickInterval())/1000.0f;
// time between press and release event
if (tmp.getValue() < dci) {
canOpenPopupMenu = true;
}
}
// About to start rotating
if (press && (curmode == NavigationStyle::IDLE)) {
// Use this variable to spot move events
saveCursorPosition(ev);
this->centerTime = ev->getTime();
processed = true;
}
else if (!press && (curmode == NavigationStyle::DRAGGING)) {
if (!viewer->isEditing() && canOpenPopupMenu) {
// If we are in drag mode but mouse hasn't been moved open the context-menu
if (this->isPopupMenuEnabled()) {
this->openPopupMenu(event->getPosition());
}
}
newmode = NavigationStyle::IDLE;
processed = true;
}
break;
case SoMouseButtonEvent::BUTTON3:
this->button3down = press;
if (press) {
this->centerTime = ev->getTime();
float ratio = vp.getViewportAspectRatio();
SbViewVolume vv = viewer->getSoRenderManager()->getCamera()->getViewVolume(ratio);
this->panningplane = vv.getPlane(viewer->getSoRenderManager()->getCamera()->focalDistance.getValue());
}
else if (curmode == NavigationStyle::PANNING) {
newmode = NavigationStyle::IDLE;
processed = true;
}
break;
default:
break;
}
}
// Mouse Movement handling
if (type.isDerivedFrom(SoLocation2Event::getClassTypeId())) {
const SoLocation2Event * const event = (const SoLocation2Event *) ev;
if (curmode == NavigationStyle::PANNING) {
float ratio = vp.getViewportAspectRatio();
panCamera(viewer->getSoRenderManager()->getCamera(), ratio, this->panningplane, posn, prevnormalized);
processed = true;
}
else if (curmode == NavigationStyle::DRAGGING) {
this->addToLog(event->getPosition(), event->getTime());
this->spin(posn);
moveCursorPosition();
processed = true;
}
}
// Spaceball & Joystick handling
if (type.isDerivedFrom(SoMotion3Event::getClassTypeId())) {
const SoMotion3Event * const event = static_cast<const SoMotion3Event *>(ev);
if (event)
this->processMotionEvent(event);
processed = true;
}
enum {
BUTTON1DOWN = 1 << 0,
BUTTON3DOWN = 1 << 1,
CTRLDOWN = 1 << 2,
SHIFTDOWN = 1 << 3,
BUTTON2DOWN = 1 << 4
};
unsigned int combo =
(this->button1down ? BUTTON1DOWN : 0) |
(this->button2down ? BUTTON2DOWN : 0) |
(this->button3down ? BUTTON3DOWN : 0) |
(this->ctrldown ? CTRLDOWN : 0) |
(this->shiftdown ? SHIFTDOWN : 0);
switch (combo) {
case 0:
if (curmode == NavigationStyle::SPINNING) { break; }
newmode = NavigationStyle::IDLE;
break;
case BUTTON1DOWN:
newmode = NavigationStyle::SELECTION;
break;
case BUTTON2DOWN:
newmode = NavigationStyle::DRAGGING;
break;
case BUTTON3DOWN:
newmode = NavigationStyle::PANNING;
break;
default:
break;
}
if (newmode != curmode) {
this->setViewingMode(newmode);
}
// If not handled in this class, pass on upwards in the inheritance
// hierarchy.
if (!processed)
processed = inherited::processSoEvent(ev);
return processed;
}