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/***************************************************************************
* 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 <Inventor/nodes/SoCamera.h>
#include <QApplication>
#include "Navigation/NavigationStyle.h"
#include "View3DInventorViewer.h"
using namespace Gui;
// ----------------------------------------------------------------------------------
/* TRANSLATOR Gui::OpenSCADNavigationStyle */
TYPESYSTEM_SOURCE(Gui::OpenSCADNavigationStyle, Gui::UserNavigationStyle)
OpenSCADNavigationStyle::OpenSCADNavigationStyle() = default;
OpenSCADNavigationStyle::~OpenSCADNavigationStyle() = default;
const char* OpenSCADNavigationStyle::mouseButtons(ViewerMode mode)
{
switch (mode) {
case NavigationStyle::SELECTION:
return QT_TR_NOOP("Press left mouse button");
case NavigationStyle::PANNING:
return QT_TR_NOOP("Press right mouse button and move mouse");
case NavigationStyle::DRAGGING:
return QT_TR_NOOP("Press left mouse button and move mouse");
case NavigationStyle::ZOOMING:
return QT_TR_NOOP("Press middle mouse button or SHIFT and right mouse button");
default:
return "No description";
}
}
SbBool OpenSCADNavigationStyle::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 auto event = static_cast<const SoKeyboardEvent*>(ev);
processed = processKeyboardEvent(event);
}
// Mouse Button / Spaceball Button handling
if (type.isDerivedFrom(SoMouseButtonEvent::getClassTypeId())) {
const auto event = (const SoMouseButtonEvent*)ev;
const int button = event->getButton();
const SbBool press = event->getState() == SoButtonEvent::DOWN ? true : false;
switch (button) {
case SoMouseButtonEvent::BUTTON1:
this->lockrecenter = true;
this->button1down = press;
if (press && (curmode == NavigationStyle::SEEK_WAIT_MODE)) {
newmode = NavigationStyle::SEEK_MODE;
this->seekToPoint(pos); // implicitly calls interactiveCountInc()
processed = true;
}
else if (!press && (curmode == NavigationStyle::ZOOMING)) {
newmode = NavigationStyle::IDLE;
processed = true;
}
else if (!press && (curmode == NavigationStyle::DRAGGING)) {
this->setViewing(false);
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->lockrecenter = true;
this->button2down = press;
// Don't show the context menu after dragging, panning or zooming
if (!press && (hasDragged || hasPanned || hasZoomed)) {
processed = true;
}
else if (!press && !viewer->isEditing()) {
if (this->currentmode != NavigationStyle::ZOOMING
&& this->currentmode != NavigationStyle::DRAGGING) {
if (this->isPopupMenuEnabled()) {
this->openPopupMenu(event->getPosition());
}
}
}
// Alternative way of rotating & zooming
if (press
&& (curmode == NavigationStyle::PANNING || curmode == NavigationStyle::ZOOMING)) {
newmode = NavigationStyle::DRAGGING;
saveCursorPosition(ev);
this->centerTime = ev->getTime();
processed = true;
}
else if (!press && (curmode == NavigationStyle::DRAGGING)) {
newmode = NavigationStyle::IDLE;
processed = true;
}
break;
case SoMouseButtonEvent::BUTTON3:
this->button3down = press;
if (press) {
this->centerTime = ev->getTime();
setupPanningPlane(getCamera());
this->lockrecenter = false;
}
else if (curmode == NavigationStyle::PANNING) {
newmode = NavigationStyle::IDLE;
processed = true;
}
break;
default:
break;
}
}
// Mouse Movement handling
if (type.isDerivedFrom(SoLocation2Event::getClassTypeId())) {
this->lockrecenter = true;
const auto event = (const SoLocation2Event*)ev;
if (!viewer->isEditing() && curmode == NavigationStyle::SELECTION) {
if (button1down && isDraggerUnderCursor(ev->getPosition())) {
newmode = NavigationStyle::INTERACT;
}
else {
newmode = NavigationStyle::DRAGGING;
saveCursorPosition(ev);
this->centerTime = ev->getTime();
}
}
else if (curmode == NavigationStyle::ZOOMING) {
// OpenSCAD uses vertical mouse position, not horizontal
// this->zoomByCursor(posn, prevnormalized);
float value = (posn[1] - prevnormalized[1]) * 10.0f;
if (this->invertZoom) {
value = -value;
}
zoom(viewer->getSoRenderManager()->getCamera(), value);
processed = true;
}
else 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 auto 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:
if (newmode != NavigationStyle::DRAGGING && newmode != NavigationStyle::INTERACT) {
newmode = NavigationStyle::SELECTION;
}
break;
case BUTTON2DOWN:
newmode = NavigationStyle::PANNING;
break;
case BUTTON3DOWN:
case SHIFTDOWN | BUTTON2DOWN:
case SHIFTDOWN | BUTTON3DOWN:
newmode = NavigationStyle::ZOOMING;
break;
default:
break;
}
// Process when selection button is pressed together with other buttons that could trigger
// different actions.
if (this->button1down && (this->button2down || this->button3down)) {
processed = true;
}
// Prevent interrupting rubber-band selection in sketcher
if (viewer->isEditing() && curmode == NavigationStyle::SELECTION
&& newmode != NavigationStyle::IDLE) {
newmode = NavigationStyle::SELECTION;
processed = false;
}
// Reset flags when newmode is IDLE and the buttons are released
if (newmode == IDLE && !button1down && !button2down && !button3down) {
hasPanned = false;
hasDragged = false;
hasZoomed = false;
}
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;
}
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