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/***************************************************************************
* Copyright (c) 2011 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::SolidWorksNavigationStyle */
TYPESYSTEM_SOURCE(Gui::SolidWorksNavigationStyle, Gui::UserNavigationStyle)
SolidWorksNavigationStyle::SolidWorksNavigationStyle()
: lockButton1(false)
{}
SolidWorksNavigationStyle::~SolidWorksNavigationStyle() = default;
const char* SolidWorksNavigationStyle::mouseButtons(ViewerMode mode)
{
switch (mode) {
case NavigationStyle::SELECTION:
return QT_TR_NOOP("Press left mouse button");
case NavigationStyle::PANNING:
return QT_TR_NOOP("Press Ctrl and middle mouse button");
case NavigationStyle::DRAGGING:
return QT_TR_NOOP("Press middle mouse button");
case NavigationStyle::ZOOMING:
return QT_TR_NOOP("Scroll mouse wheel");
default:
return "No description";
}
}
SbBool SolidWorksNavigationStyle::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 (Bug #0000911)
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* const event = (const SoMouseButtonEvent*)ev;
const int button = event->getButton();
const SbBool press = event->getState() == SoButtonEvent::DOWN ? true : false;
// SoDebugError::postInfo("processSoEvent", "button = %d", button);
switch (button) {
case SoMouseButtonEvent::BUTTON1:
this->lockrecenter = true;
this->button1down = press;
if (press && (this->currentmode == NavigationStyle::SEEK_WAIT_MODE)) {
newmode = NavigationStyle::SEEK_MODE;
this->seekToPoint(pos); // implicitly calls interactiveCountInc()
processed = true;
}
else if (press
&& (this->currentmode == NavigationStyle::PANNING
|| this->currentmode == NavigationStyle::ZOOMING)) {
newmode = NavigationStyle::DRAGGING;
saveCursorPosition(ev);
this->centerTime = ev->getTime();
processed = true;
}
else if (!press && (this->currentmode == NavigationStyle::DRAGGING)) {
processed = true;
}
else if (viewer->isEditing() && (this->currentmode == 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;
// 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::PANNING
&& this->currentmode != NavigationStyle::DRAGGING) {
if (this->isPopupMenuEnabled()) {
this->openPopupMenu(event->getPosition());
}
}
}
// Alternative way of rotating & zooming
if (press
&& (this->currentmode == NavigationStyle::PANNING
|| this->currentmode == NavigationStyle::ZOOMING)) {
newmode = NavigationStyle::DRAGGING;
saveCursorPosition(ev);
this->centerTime = ev->getTime();
processed = true;
}
this->button2down = press;
break;
case SoMouseButtonEvent::BUTTON3:
if (press) {
this->centerTime = ev->getTime();
setupPanningPlane(getCamera());
this->lockrecenter = false;
}
else {
SbTime tmp = (ev->getTime() - this->centerTime);
float dci = (float)QApplication::doubleClickInterval() / 1000.0f;
// is it just a middle click?
if (tmp.getValue() < dci && !this->lockrecenter) {
lookAtPoint(pos);
processed = true;
}
}
this->button3down = press;
break;
default:
break;
}
}
// Mouse Movement handling
if (type.isDerivedFrom(SoLocation2Event::getClassTypeId())) {
this->lockrecenter = true;
const auto* const event = (const SoLocation2Event*)ev;
if (this->currentmode == NavigationStyle::ZOOMING) {
this->zoomByCursor(posn, prevnormalized);
processed = true;
}
else if (this->currentmode == NavigationStyle::PANNING) {
float ratio = vp.getViewportAspectRatio();
panCamera(
viewer->getSoRenderManager()->getCamera(),
ratio,
this->panningplane,
posn,
prevnormalized
);
processed = true;
}
else if (this->currentmode == NavigationStyle::DRAGGING) {
this->addToLog(event->getPosition(), event->getTime());
this->spin(posn);
moveCursorPosition();
processed = true;
}
}
// Spaceball & Joystick handling
if (type.isDerivedFrom(SoMotion3Event::getClassTypeId())) {
const auto* 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;
// The left mouse button has been released right now
if (this->lockButton1) {
this->lockButton1 = false;
if (curmode != NavigationStyle::SELECTION) {
processed = true;
}
}
break;
case BUTTON1DOWN:
case CTRLDOWN | BUTTON1DOWN:
// make sure not to change the selection when stopping spinning
if (curmode == NavigationStyle::SPINNING
|| (this->lockButton1 && curmode != NavigationStyle::SELECTION)) {
newmode = NavigationStyle::IDLE;
}
else {
newmode = NavigationStyle::SELECTION;
}
break;
case SHIFTDOWN | BUTTON3DOWN:
newmode = NavigationStyle::ZOOMING;
break;
case BUTTON3DOWN:
if (newmode != NavigationStyle::DRAGGING) {
saveCursorPosition(ev);
}
newmode = NavigationStyle::DRAGGING;
break;
case CTRLDOWN | BUTTON3DOWN:
newmode = NavigationStyle::PANNING;
break;
default:
// Reset mode to IDLE when button 3 is released
// This stops the PANNING when button 3 is released but CTRL is still pressed
// This stops the ZOOMING when button 3 is released but SHIFT is still pressed
if ((curmode == NavigationStyle::PANNING || curmode == NavigationStyle::ZOOMING)
&& !this->button3down) {
newmode = NavigationStyle::IDLE;
}
break;
}
// If the selection button is pressed together with another button
// and the other button is released, don't switch to selection mode.
// Process when selection button is pressed together with other buttons that could trigger
// different actions.
if (this->button1down && (this->button2down || this->button3down)) {
this->lockButton1 = true;
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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