File: labelDialog.C

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/* TRANSLATOR BALL::VIEW::LabelDialog

		Necessary for lupdate.
*/

// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//

#include <BALL/FORMAT/INIFile.h>
#include <BALL/VIEW/DIALOGS/labelDialog.h>
#include <BALL/VIEW/MODELS/labelModel.h>
#include <BALL/VIEW/KERNEL/mainControl.h>
#include <BALL/VIEW/KERNEL/common.h>

#include <QtWidgets/QMenuBar>
#include <QtWidgets/QLabel>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QFontDialog>
#include <QtWidgets/QRadioButton>

namespace BALL
{
	namespace VIEW
	{
		LabelDialog::LabelDialog(QWidget* parent, const char* name)
			:	QDialog(parent),
				Ui_LabelDialogData(),
				ModularWidget(name),
				id_(0)
		{
#ifdef BALL_VIEW_DEBUG
			Log.error() << "new LabelDialog " << this << std::endl;
#endif
			setupUi(this);

			// signals and slots connections
			connect( apply_button_, SIGNAL( clicked() ), this, SLOT( accept() ) );
			connect( buttonCancel, SIGNAL( clicked() ), this, SLOT( reject() ) );
			connect( edit_button, SIGNAL( clicked() ), this, SLOT( editColor() ) );
			connect( add_tag_button, SIGNAL( clicked() ), this, SLOT( addTag() ) );
			connect( font_button, SIGNAL( clicked() ), this, SLOT( fontSelected() ) );
			connect( all_items, SIGNAL( toggled(bool) ), this, SLOT( modeChanged() ) );
			connect( text_box, SIGNAL( editTextChanged(const QString&) ), this, SLOT( textChanged() ) );

			setWindowTitle(tr("Add Label"));
			setObjectName(name);

			// register the widget with the MainControl
			ModularWidget::registerWidget(this);

			hide();
		}

		LabelDialog::~LabelDialog()
		{
#ifdef BALL_VIEW_DEBUG
			Log.error() << "deleting LabelDialog " << this << std::endl;
#endif
		}

		void LabelDialog::fetchPreferences(INIFile& inifile)
		{
			ModularWidget::fetchPreferences(inifile);

			// the color value
			if (inifile.hasEntry("WINDOWS", "Label::customcolor"))
			{
				custom_color_.set(inifile.getValue("WINDOWS", "Label::customcolor"));
				setColor(color_sample_, custom_color_);
			}

			if (inifile.hasEntry("WINDOWS", "Label::font"))
			{
				font_.fromString(inifile.getValue("WINDOWS", "Label::font").c_str());
			}
			else
			{
				font_ = QFont("Helvetica", 12);
			}

			font_label->setFont(font_);

			if (inifile.hasEntry("WINDOWS", "Label::manylabels"))
			{
				all_items->setChecked(inifile.getValue("WINDOWS", "Label::manylabels").toBool());
				every_item->setChecked(!inifile.getValue("WINDOWS", "Label::manylabels").toBool());
			}
		}

		void LabelDialog::writePreferences(INIFile& inifile)
		{
			ModularWidget::writePreferences(inifile);

			// the color value
			inifile.insertValue("WINDOWS", "Label::customcolor", custom_color_);

			// the font size
			inifile.insertValue("WINDOWS", "Label::font", ascii(font_.toString()));

			// many <-> one label
			inifile.insertValue("WINDOWS", "Label::manylabels", String(!all_items->isChecked()));
		}

		void LabelDialog::onNotify(Message *message)
		{
#ifdef BALL_VIEW_DEBUG
			Log.error() << "LabelDialog " << this << " onNotify " << message << std::endl;
#endif
			// selection => store last selection for later processing
            if (RTTI::isKindOf<ControlSelectionMessage>(message))
			{
				ControlSelectionMessage* selection = RTTI::castTo<ControlSelectionMessage>(*message);
				// disabled apply button, if selection is empty
				const bool filled = !selection->getSelection().empty();
				apply_button_->setEnabled(filled);
				checkMenu(*getMainControl());
			}
		}

		void LabelDialog::initializeWidget(MainControl&)
		{
			String description = "Shortcut|Display|Create|Label";
			id_ = insertMenuEntry(MainControl::DISPLAY_CREATE, tr("&Label"), this, 
					                  SLOT(show()), description, QKeySequence("Ctrl+L"),
														tr("Add a label for selected molecular objects"),
														UIOperationMode::MODE_ADVANCED);
		}

		void LabelDialog::show()
		{
			raise();
			QDialog::show();
		}


		void LabelDialog::accept()
		{
			list<Composite*> selection = getMainControl()->getMolecularControlSelection();

			// no selection present => return
			if (selection.empty()) return;

			Representation* rep = new Representation;
			rep->setProperty(Representation::PROPERTY__ALWAYS_FRONT);
			rep->setModelType(MODEL_LABEL);

			LabelModel* model = new LabelModel;
			model->setText(ascii(text_box->currentText()));
			model->setColor(custom_color_);
			model->setFont(font_);

			if (		 all_items->isChecked()) model->setMode(LabelModel::ONE_LABEL);
			else if (		every_atom->isChecked()) model->setMode(LabelModel::ALL_ATOMS);
			else if (every_residue->isChecked()) model->setMode(LabelModel::ALL_RESIDUES);
			else if (	  every_item->isChecked()) model->setMode(LabelModel::ALL_ITEMS);

			rep->setModelProcessor(model);

			// process all objects in the selection list
			list<Composite*>::const_iterator list_it = selection.begin();
			list<const Composite*> composites;

			for (; list_it != selection.end(); ++list_it)
			{
				composites.push_back(*list_it);
			}

			rep->setComposites(composites);

			getMainControl()->insert(*rep);
			getMainControl()->update(*rep);

			text_box->addItem(text_box->currentText());

			setStatusbarText(tr("Label added."));
		}

		void LabelDialog::editColor()
		{
			custom_color_.set(chooseColor(color_sample_));
		}

		void LabelDialog::addTag()
		{
			QString tag;
			if (tag_box->currentText() == "Name")							 	tag = "%N";
			else if (tag_box->currentText() == "Residue ID") 	 	tag = "%I";
			else if (tag_box->currentText() == "Atom Type")			tag = "%T";
			else if (tag_box->currentText() == "Atom Charge") 	tag = "%C";
			else if (tag_box->currentText() == "Atom Type Name")tag = "%Y";
			else if (tag_box->currentText() == "Element") 			tag = "%E";

			text_box->lineEdit()->setText(text_box->currentText() + tag);
		}

		void LabelDialog::fontSelected()
		{
			bool ok = true;
			QFont font = QFontDialog::getFont(&ok, font_, 0);

			if (!ok) return;

			font_label->setFont(font);
			font_ = font;
		}

		void LabelDialog::modeChanged()
		{
			tag_box->setEnabled(!all_items->isChecked());
			add_tag_button->setEnabled(!all_items->isChecked());
		}

		void LabelDialog::textChanged()
		{
			apply_button_->setEnabled(text_box->currentText() != "");
		}

		void LabelDialog::checkMenu(MainControl& main_control)
		{
			if (id_)
				id_->setEnabled(main_control.getMolecularControlSelection().size() > 0 && !main_control.isBusy());
		}


	} } // namespaces