void Viewer::drawSelected(GLObjectList const& objects, Vec const& cameraPosition)
{
if (!m_selectionHighlighting || objects.isEmpty()) return;
// create a stencil of the highlighted region
glClearStencil(0x4);
glDisable(GL_LIGHTING);
glClear(GL_STENCIL_BUFFER_BIT);
glEnable(GL_STENCIL_TEST);
glStencilFunc(GL_ALWAYS, 0x0, 0x4);
glStencilMask(0x4);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
GLObjectList::const_iterator object;
for (object = objects.begin(); object != objects.end(); ++object) {
(*object)->draw(cameraPosition);
}
glStencilFunc(GL_EQUAL, 0x4, 0x4);
glStencilOp(GL_KEEP, GL_KEEP, GL_INVERT);
for (object = objects.begin(); object != objects.end(); ++object) {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
(*object)->drawSelected(cameraPosition);
}
glDisable(GL_STENCIL_TEST);
glDisable(GL_BLEND);
glEnable(GL_LIGHTING);
}
void Viewer::drawObjects(GLObjectList const& objects, Vec const& cameraPosition)
{
GLObjectList::const_iterator object;
for (object = objects.begin(); object != objects.end(); ++object) {
(*object)->draw(cameraPosition);
}
}
void Viewer::drawObjects(GLObjectList const& objects)
{
GLObjectList::const_iterator object;
for (object = objects.begin(); object != objects.end(); ++object) {
(*object)->draw();
}
}
void Viewer::drawLabels(GLObjectList const& objects)
{
AtomList atomList;
Layer::Atom* atom;
Layer::Charge* charge;
bool selectedOnly = (m_selectedObjects.count() > 0);
GLObjectList::const_iterator object;
for (object = objects.begin(); object!= objects.end(); ++object) {
if ( (atom = qobject_cast<Layer::Atom*>(*object)) ) {
atom->drawLabel(*this, m_labelType, s_labelFontMetrics);
if ( !selectedOnly || atom->isSelected() ) atomList.append(atom);
}else if ( (m_labelType == Layer::Atom::Charge) &&
(charge = qobject_cast<Layer::Charge*>(*object)) ) {
charge->drawLabel(*this, s_labelFontMetrics);
}
}
glDisable(GL_LIGHTING);
qglColor(foregroundColor());
QString mesg = selectedOnly ? "Selection " : "Total ";
AtomList::const_iterator iter;
double value(0.0);
if (m_labelType == Layer::Atom::Mass) {
for (iter= atomList.begin(); iter != atomList.end(); ++iter) {
value += (*iter)->getMass();
}
mesg += "mass: " + QString::number(value,'f', 3);
drawText(width()-s_labelFontMetrics.width(mesg), height()-10, mesg);
}else if (m_labelType == Layer::Atom::Charge) {
for (iter = atomList.begin(); iter != atomList.end(); ++iter) {
value += (*iter)->getCharge();
}
mesg += "charge: " + QString::number(value,'f', 2);
drawText(width()-s_labelFontMetrics.width(mesg), height()-10, mesg);
}else if (m_labelType == Layer::Atom::Spin) {
for (iter = atomList.begin(); iter != atomList.end(); ++iter) {
value += (*iter)->getSpin();
}
mesg += "spin: " + QString::number(value,'f', 2);
drawText(width()-s_labelFontMetrics.width(mesg), height()-10, mesg);
}
glEnable(GL_LIGHTING);
}
