void TransFuncIntensityGradientPainter::mouseMoveEvent(tgt::MouseEvent* event) {
event->accept();
tgt::ivec2 size = getCanvas()->getSize();
tgt::vec2 pos = tgt::vec2( static_cast<float>(event->x()) / size.x,
1.f-static_cast<float>(event->y()) / size.y);
tgt::vec2 offset = pos - mouseCoord_;
if (selectedPrimitive_) {
if (!dragging_) {
emit toggleInteractionMode(true);
dragging_ = true;
}
// test whether the movement is correct
/*bool inside = */selectedPrimitive_->move(offset);
// one or more control points are moved outside of the canvas
// -> do not allow movement and reset mouse cursor to position before movement
//if (!inside) {
//tgt::QtCanvas* canvas = static_cast<tgt::QtCanvas*>(getCanvas());
//QPoint p(static_cast<int>(mouseCoord_.x * size.x),
//static_cast<int>((1.f - mouseCoord_.y) * size.y));
//p = canvas->mapToGlobal(p);
//QCursor::setPos(p);
//}
//else {
mouseCoord_ = pos;
updateTF();
//}
}
getCanvas()->update();
}
void TransFuncIntensityGradientPainter::mouseReleaseEvent(tgt::MouseEvent* event) {
event->accept();
if (selectedPrimitive_ && dragging_) {
dragging_ = false;
emit toggleInteractionMode(false);
}
}
void DoubleSlider::mousePressEvent(QMouseEvent* e) {
e->accept();
//calculate which marker is nearest to mouse position
normalizedMousePos_ = static_cast<float>((e->pos()).x()-leftOffset_) / static_cast<float>(width()-leftOffset_-rightOffset_);
mV1_ = minValue_;
mV2_ = maxValue_;
if (e->button() == Qt::LeftButton) {
if (fabs(minValue_ - normalizedMousePos_) < fabs(maxValue_ - normalizedMousePos_)) {
leftSliderActive_ = true;
rightSliderActive_ = false;
}
else {
leftSliderActive_ = false;
rightSliderActive_ = true;
}
}
else if (e->button() == Qt::RightButton) {
leftSliderActive_ = true;
rightSliderActive_ = true;
}
moveSlider(normalizedMousePos_);
emit toggleInteractionMode(true);
}
void TransFunc1DRampEditor::stopTracking() {
toggleInteractionMode(false);
}
void TransFunc1DRampEditor::startTracking() {
toggleInteractionMode(true);
}
void DoubleSlider::mouseReleaseEvent(QMouseEvent* e) {
e->accept();
emit toggleInteractionMode(false);
}
void ColorLuminancePicker::mouseReleaseEvent(QMouseEvent* event) {
event->accept();
emit toggleInteractionMode(false);
}
void ColorLuminancePicker::mousePressEvent(QMouseEvent* event) {
emit toggleInteractionMode(true);
setVal(y2val(event->y()));
}
void TransFuncEditorIntensityRamp::stopTracking() {
toggleInteractionMode(false);
}
void TransFuncEditorIntensityRamp::startTracking() {
toggleInteractionMode(true);
}