File indexing completed on 2024-05-12 15:28:20

 /***************************************************************************
     File                 : ThemesComboBox.cpp
     Project              : LabPlot
     Description          : Preview of all themes in a QComboBox
     --------------------------------------------------------------------
     Copyright            : (C) 2017 by Alexander Semke (alexander.semke@web.de)
 
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *  This program is free software; you can redistribute it and/or modify   *
  *  it under the terms of the GNU General Public License as published by   *
  *  the Free Software Foundation; either version 2 of the License, or      *
  *  (at your option) any later version.                                    *
  *                                                                         *
  *  This program is distributed in the hope that it will be useful,        *
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  *  GNU General Public License for more details.                           *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the Free Software           *
  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
  *   Boston, MA  02110-1301  USA                                           *
  *                                                                         *
  ***************************************************************************/
 
 #include "kdefrontend/widgets/ThemesComboBox.h"
 #include "kdefrontend/widgets/ThemesWidget.h"
 
 #include <QEvent>
 #include <QGroupBox>
 #include <QVBoxLayout>
 
 #include <KLocalizedString>
 
 /*!
     \class ThemesComboBox
     \brief Preview of all themes in a QComboBox.
 
     \ingroup backend/widgets
 */
 ThemesComboBox::ThemesComboBox(QWidget* parent) : QComboBox(parent) {
     auto* layout = new QVBoxLayout;
     m_view = new ThemesWidget(this);
     m_groupBox = new QGroupBox;
 
     layout->setContentsMargins(0, 0, 0, 0);
     layout->setSpacing(0);
     layout->addWidget(m_view);
 
     m_groupBox->setLayout(layout);
     m_groupBox->setParent(parent, Qt::Popup);
     m_groupBox->hide();
     m_groupBox->installEventFilter(this);
 
     addItem(QString());
     setCurrentIndex(0);
 
     connect(m_view, &ThemesWidget::themeSelected, this, &ThemesComboBox::handleThemeChanged);
 }
 
 void ThemesComboBox::showPopup() {
     m_groupBox->show();
     m_groupBox->resize(this->width(), 250);
     m_groupBox->move(mapToGlobal( this->rect().topLeft() ));
 }
 
 void ThemesComboBox::hidePopup() {
     m_groupBox->hide();
 }
 
 /*!
     catches the MouseButtonPress-event and hides the tree view on mouse clicking.
 */
 bool ThemesComboBox::eventFilter(QObject* object, QEvent* event) {
     if ( (object == m_groupBox) && event->type() == QEvent::MouseButtonPress ) {
         m_groupBox->hide();
         this->setFocus();
         return true;
     }
 
     return QComboBox::eventFilter(object, event);
 }
 
 void ThemesComboBox::handleThemeChanged(const QString& theme) {
     if (theme != currentText()) {
         if (theme.isEmpty())
             setItemText(0, i18n("Default")); //default theme
         else
             setItemText(0, theme);
         emit currentThemeChanged(theme);
     }
 
     m_groupBox->hide();
 }