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#include <BALL/VIEW/KERNEL/MODES/moveMode.h>
#include <BALL/STRUCTURE/geometricProperties.h>
#include <BALL/VIEW/WIDGETS/scene.h>
#include <BALL/VIEW/RENDERING/camera.h>
#include <BALL/VIEW/KERNEL/mainControl.h>
#include <BALL/VIEW/KERNEL/message.h>
#include <QtGui/QMouseEvent>
#include <QtGui/QKeyEvent>
#define ROTATE_FACTOR 50.
#define ROTATE_FACTOR2 50.
#define TRANSLATE_FACTOR 4.
#define ZOOM_FACTOR 7.
namespace BALL
{
namespace VIEW
{
/// Different Mouse Mode actions
enum ModeAction
{
///
TRANSLATE_ACTION,
///
ZOOM_ACTION,
///
ROTATE_ACTION,
///
ROTATE_CLOCKWISE_ACTION
};
MoveMode::MoveMode(Scene* scene)
: InteractionMode(scene),
move_atom_(0)
{
String description = "Shortcut|Display|Move_Mode";
main_action_ = scene_->insertMenuEntry(MainControl::DISPLAY, tr("Move Mode"), 0,
0, description, QKeySequence("Ctrl+W"),
tr("Switch to move mode, e.g. move selected items"),
UIOperationMode::MODE_ADVANCED);
if (main_action_)
{
scene_->setIcon(main_action_, "actions/transform-move", false);
main_action_->setCheckable(true);
connect(main_action_, SIGNAL(triggered()), SLOT(modeChangeSlot_()));
}
}
void MoveMode::mouseMoveEventImpl_(QMouseEvent* evt)
{
processMoveModeMouseEvents_(evt);
}
void MoveMode::mouseReleaseEventImpl_(QMouseEvent* evt)
{
processMoveModeMouseEvents_(evt);
}
Index MoveMode::getMoveModeAction_(QMouseEvent* e)
{
// TODO make keys configurable in shortcutRegistry
if (e->modifiers() == Qt::NoModifier)
{
if (e->buttons() == Qt::LeftButton) return TRANSLATE_ACTION;
if (e->buttons() == Qt::MidButton) return ZOOM_ACTION;
if (e->buttons() == Qt::RightButton) return ROTATE_ACTION;
}
else if (e->buttons() == Qt::LeftButton)
{
if (e->modifiers() == Qt::ShiftModifier) return ZOOM_ACTION;
if (e->modifiers() == Qt::ControlModifier) return ROTATE_ACTION;
if (e->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier)) return ROTATE_CLOCKWISE_ACTION;
}
else if (e->buttons() == (Qt::LeftButton | Qt::RightButton))
{
return ROTATE_CLOCKWISE_ACTION;
}
return ROTATE_ACTION;
}
void MoveMode::processMoveModeMouseEvents_(QMouseEvent* e)
{
Camera& camera = scene_->getStage()->getCamera();
// Difference between the old and new position in the window
float delta_x = getXDiff_() / 4.0;
float delta_y = getYDiff_() / 4.0;
// stop if no movement
if (delta_x == 0 && delta_y == 0) return;
Index action = getMoveModeAction_(e);
// if we have a selection of Composites, we perform the moving here:
const HashSet<Composite*>& selection = scene_->getMainControl()->getSelection();
if (selection.size() != 0)
{
list<Composite*> composites;
std::copy(selection.begin(), selection.end(), std::front_inserter(composites));
switch (action)
{
case ZOOM_ACTION:
{
scene_->moveComposites(composites, Vector3(0,0, delta_y * ZOOM_FACTOR));
return;
}
case TRANSLATE_ACTION:
{
scene_->moveComposites(composites, Vector3(delta_x * TRANSLATE_FACTOR ,-delta_y * TRANSLATE_FACTOR, 0));
return;
}
case ROTATE_ACTION:
{
scene_->rotateComposites(composites, delta_x * ROTATE_FACTOR * 4., delta_y * ROTATE_FACTOR * 4., 0);
return;
}
case ROTATE_CLOCKWISE_ACTION:
{
scene_->rotateComposites(composites, 0, 0, delta_x * ROTATE_FACTOR * 4.);
return;
}
}
return;
}
// moving for Clipping Planes is done in DatasetControl:
// we create the Matrix for this here and send it per Message
Matrix4x4 m;
switch (action)
{
case ZOOM_ACTION:
{
Vector3 v = -scene_->getStage()->getCamera().getViewVector();
if (Maths::isZero(v.getSquareLength())) v = Vector3(1,0,0);
v.normalize();
v *= delta_y * ZOOM_FACTOR * 1.5;
m.setTranslation(v);
break;
}
case TRANSLATE_ACTION:
{
// calculate translation in x-axis direction
Vector3 right_translate = camera.getRightVector() * delta_x * TRANSLATE_FACTOR * 3.0;
// calculate translation in y-axis direction
Vector3 up_translate = camera.getLookUpVector() * delta_y * TRANSLATE_FACTOR * 3.0;
m.setTranslation(right_translate - up_translate);
break;
}
case ROTATE_ACTION:
{
delta_x *= ROTATE_FACTOR * 4.;
delta_y *= ROTATE_FACTOR * 4.;
float angle_total = fabs(delta_x) + fabs(delta_y);
Vector3 rotation_axis = (camera.getLookUpVector() * delta_x / angle_total) +
(camera.getRightVector() * delta_y / angle_total);
m.rotate(Angle(angle_total, false), rotation_axis);
break;
}
case ROTATE_CLOCKWISE_ACTION:
default:
delta_x *= ROTATE_FACTOR2;
Vector3 rotation_axis = camera.getViewVector();
m.rotate(Angle(delta_x, false), rotation_axis);
}
TransformationMessage* msg = new TransformationMessage;
msg->setMatrix(m);
scene_->notify(msg);
}
Qt::Key MoveMode::getKey() const
{
return Qt::Key_W;
}
void MoveMode::activate()
{
InteractionMode::activate();
scene_->setCursor(QCursor(Qt::SizeAllCursor));
}
void MoveMode::populateContextMenu(QMenu* menu)
{
if(move_atom_ == 0)
{
move_atom_ = new QAction(tr("Move Atom"), this);
connect(move_atom_, SIGNAL(triggered()), this, SLOT(moveAtomTriggered_()));
}
move_atom_->setEnabled(scene_->getCurrentAtom() != 0);
menu->addAction(move_atom_);
}
void MoveMode::moveAtomTriggered_()
{
if (scene_->getCurrentAtom() == 0) return;
scene_->getCurrentAtom()->setSelected(true);
scene_->notify(new CompositeMessage(*scene_->getCurrentAtom(), CompositeMessage::SELECTED_COMPOSITE));
Q_EMIT InteractionMode::requestModeChange(this);
}
}
}
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