ae53c9b0a4
* On lines where the variable type is obvious from inspection, avoid repeating the type using auto. * When possible use a ranged for loop instead of begin() and end() iterators
299 lines
11 KiB
C++
299 lines
11 KiB
C++
/***************************************************************************
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* Copyright (c) 2011 Werner Mayer <wmayer[at]users.sourceforge.net> *
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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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#ifndef _PreComp_
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# include <Inventor/nodes/SoCamera.h>
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# include <QApplication>
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#endif
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#include "NavigationStyle.h"
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#include "View3DInventorViewer.h"
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using namespace Gui;
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// ----------------------------------------------------------------------------------
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/* TRANSLATOR Gui::BlenderNavigationStyle */
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TYPESYSTEM_SOURCE(Gui::BlenderNavigationStyle, Gui::UserNavigationStyle)
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BlenderNavigationStyle::BlenderNavigationStyle() : lockButton1(false)
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{
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}
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BlenderNavigationStyle::~BlenderNavigationStyle()
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{
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}
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const char* BlenderNavigationStyle::mouseButtons(ViewerMode mode)
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{
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switch (mode) {
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case NavigationStyle::SELECTION:
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return QT_TR_NOOP("Press left mouse button");
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case NavigationStyle::PANNING:
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return QT_TR_NOOP("Press SHIFT and middle mouse button");
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case NavigationStyle::DRAGGING:
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return QT_TR_NOOP("Press middle mouse button");
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case NavigationStyle::ZOOMING:
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return QT_TR_NOOP("Scroll middle mouse button");
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default:
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return "No description";
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}
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}
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SbBool BlenderNavigationStyle::processSoEvent(const SoEvent * const ev)
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{
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// Events when in "ready-to-seek" mode are ignored, except those
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// which influence the seek mode itself -- these are handled further
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// up the inheritance hierarchy.
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if (this->isSeekMode()) {
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return inherited::processSoEvent(ev);
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}
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// Switch off viewing mode (Bug #0000911)
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if (!this->isSeekMode() && !this->isAnimating() && this->isViewing())
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this->setViewing(false); // by default disable viewing mode to render the scene
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const SoType type(ev->getTypeId());
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const SbViewportRegion & vp = viewer->getSoRenderManager()->getViewportRegion();
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const SbVec2s pos(ev->getPosition());
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const SbVec2f posn = normalizePixelPos(pos);
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const SbVec2f prevnormalized = this->lastmouseposition;
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this->lastmouseposition = posn;
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// Set to true if any event processing happened. Note that it is not
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// necessary to restrict ourselves to only do one "action" for an
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// event, we only need this flag to see if any processing happened
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// at all.
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SbBool processed = false;
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const ViewerMode curmode = this->currentmode;
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ViewerMode newmode = curmode;
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// Mismatches in state of the modifier keys happens if the user
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// presses or releases them outside the viewer window.
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syncModifierKeys(ev);
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// give the nodes in the foreground root the chance to handle events (e.g color bar)
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if (!viewer->isEditing()) {
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processed = handleEventInForeground(ev);
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if (processed)
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return true;
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}
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// Keyboard handling
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if (type.isDerivedFrom(SoKeyboardEvent::getClassTypeId())) {
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const auto event = static_cast<const SoKeyboardEvent *>(ev);
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processed = processKeyboardEvent(event);
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}
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// Mouse Button / Spaceball Button handling
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if (type.isDerivedFrom(SoMouseButtonEvent::getClassTypeId())) {
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const auto * const event = (const SoMouseButtonEvent *) ev;
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const int button = event->getButton();
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const SbBool press = event->getState() == SoButtonEvent::DOWN ? true : false;
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//SoDebugError::postInfo("processSoEvent", "button = %d", button);
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switch (button) {
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case SoMouseButtonEvent::BUTTON1:
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this->lockrecenter = true;
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this->button1down = press;
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if (press && (this->currentmode == NavigationStyle::SEEK_WAIT_MODE)) {
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newmode = NavigationStyle::SEEK_MODE;
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this->seekToPoint(pos); // implicitly calls interactiveCountInc()
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processed = true;
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}
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else if (press && (this->currentmode == NavigationStyle::PANNING ||
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this->currentmode == NavigationStyle::ZOOMING)) {
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newmode = NavigationStyle::DRAGGING;
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saveCursorPosition(ev);
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this->centerTime = ev->getTime();
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processed = true;
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}
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else if (viewer->isEditing() && (this->currentmode == NavigationStyle::SPINNING)) {
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processed = true;
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}
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else {
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processed = processClickEvent(event);
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}
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break;
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case SoMouseButtonEvent::BUTTON2:
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// If we are in edit mode then simply ignore the RMB events
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// to pass the event to the base class.
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this->lockrecenter = true;
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if (!viewer->isEditing()) {
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// If we are in zoom or pan mode ignore RMB events otherwise
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// the canvas doesn't get any release events
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if (this->currentmode != NavigationStyle::ZOOMING &&
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this->currentmode != NavigationStyle::PANNING &&
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this->currentmode != NavigationStyle::DRAGGING) {
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if (this->isPopupMenuEnabled()) {
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if (!press) { // release right mouse button
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this->openPopupMenu(event->getPosition());
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}
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}
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}
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}
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// Alternative way of rotating & zooming
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if (press && (this->currentmode == NavigationStyle::PANNING ||
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this->currentmode == NavigationStyle::ZOOMING)) {
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newmode = NavigationStyle::DRAGGING;
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saveCursorPosition(ev);
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this->centerTime = ev->getTime();
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processed = true;
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}
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this->button2down = press;
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break;
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case SoMouseButtonEvent::BUTTON3:
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if (press) {
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this->centerTime = ev->getTime();
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float ratio = vp.getViewportAspectRatio();
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SbViewVolume vv = viewer->getSoRenderManager()->getCamera()->getViewVolume(ratio);
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this->panningplane = vv.getPlane(viewer->getSoRenderManager()->getCamera()->focalDistance.getValue());
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this->lockrecenter = false;
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}
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else {
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SbTime tmp = (ev->getTime() - this->centerTime);
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float dci = (float)QApplication::doubleClickInterval()/1000.0f;
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// is it just a middle click?
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if (tmp.getValue() < dci && !this->lockrecenter) {
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if (!this->lookAtPoint(pos)) {
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panToCenter(panningplane, posn);
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this->interactiveCountDec();
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}
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processed = true;
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}
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}
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this->button3down = press;
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break;
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default:
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break;
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}
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}
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// Mouse Movement handling
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if (type.isDerivedFrom(SoLocation2Event::getClassTypeId())) {
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this->lockrecenter = true;
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const auto * const event = (const SoLocation2Event *) ev;
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if (this->currentmode == NavigationStyle::ZOOMING) {
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this->zoomByCursor(posn, prevnormalized);
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newmode = NavigationStyle::SELECTION;
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processed = true;
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}
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else if (this->currentmode == NavigationStyle::PANNING) {
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float ratio = vp.getViewportAspectRatio();
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panCamera(viewer->getSoRenderManager()->getCamera(), ratio, this->panningplane, posn, prevnormalized);
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newmode = NavigationStyle::SELECTION;
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processed = true;
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}
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else if (this->currentmode == NavigationStyle::DRAGGING) {
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this->addToLog(event->getPosition(), event->getTime());
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this->spin(posn);
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moveCursorPosition();
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processed = true;
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}
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}
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// Spaceball & Joystick handling
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if (type.isDerivedFrom(SoMotion3Event::getClassTypeId())) {
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const auto * const event = static_cast<const SoMotion3Event *>(ev);
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if (event)
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this->processMotionEvent(event);
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processed = true;
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}
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enum {
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BUTTON1DOWN = 1 << 0,
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BUTTON3DOWN = 1 << 1,
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CTRLDOWN = 1 << 2,
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SHIFTDOWN = 1 << 3,
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BUTTON2DOWN = 1 << 4
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};
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unsigned int combo =
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(this->button1down ? BUTTON1DOWN : 0) |
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(this->button2down ? BUTTON2DOWN : 0) |
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(this->button3down ? BUTTON3DOWN : 0) |
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(this->ctrldown ? CTRLDOWN : 0) |
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(this->shiftdown ? SHIFTDOWN : 0);
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switch (combo) {
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case 0:
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if (curmode == NavigationStyle::SPINNING) { break; }
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newmode = NavigationStyle::IDLE;
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// The left mouse button has been released right now but
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// we want to avoid that the event is processed elsewhere
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if (this->lockButton1) {
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this->lockButton1 = false;
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processed = true;
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}
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break;
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case BUTTON1DOWN:
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case CTRLDOWN|BUTTON1DOWN:
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// make sure not to change the selection when stopping spinning
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if (curmode == NavigationStyle::SPINNING || this->lockButton1)
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newmode = NavigationStyle::IDLE;
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else
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newmode = NavigationStyle::SELECTION;
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break;
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case BUTTON1DOWN|BUTTON2DOWN:
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newmode = NavigationStyle::PANNING;
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break;
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case SHIFTDOWN|BUTTON3DOWN:
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newmode = NavigationStyle::PANNING;
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break;
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case BUTTON3DOWN:
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if (newmode != NavigationStyle::DRAGGING) {
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saveCursorPosition(ev);
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}
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newmode = NavigationStyle::DRAGGING;
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break;
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case CTRLDOWN|SHIFTDOWN|BUTTON2DOWN:
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case CTRLDOWN|BUTTON3DOWN:
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newmode = NavigationStyle::ZOOMING;
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break;
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default:
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break;
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}
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if (newmode != curmode) {
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this->setViewingMode(newmode);
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}
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// If for dragging the buttons 1 and 3 are pressed
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// but then button 3 is released we shouldn't switch
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// into selection mode.
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if (this->button1down && this->button3down)
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this->lockButton1 = true;
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// If not handled in this class, pass on upwards in the inheritance
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// hierarchy.
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if (!processed)
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processed = inherited::processSoEvent(ev);
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return processed;
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}
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