File indexing completed on 2024-05-19 04:36:39

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2014 Dominik Haumann <dhaumann@kde.org>
  *
  * This library is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Library General Public License as published
  * by the Free Software Foundation, either version 2 of the License, or
  * (at your option) any later version.
  *
  * This library 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 Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, see
  * <http://www.gnu.org/licenses/>.
  */
 
 #include "IconComboBox.h"
 
 #include <QStyleOptionComboBox>
 #include <QStylePainter>
 #include <QScreen>
 #include <QWindow>
 
 #include <QDebug>
 
 IconComboBox::IconComboBox(QWidget *parent)
     : QComboBox(parent)
 {
 }
 
 QSize IconComboBox::minimumSizeHint() const
 {
     QSize sh;
     QSize is = iconSize();
     const QFontMetrics &fm = fontMetrics();
 
     const int cnt = count();
 
     for (int i = 0; i < cnt; ++i) {
         if (!itemIcon(i).isNull()) {
             sh.setWidth(qMax(sh.width(), is.width()));
         }
     }
 
     // height
     sh.setHeight(qMax(fm.lineSpacing(), 14) + 2);
     sh.setHeight(qMax(sh.height(), is.height() + 2));
 
     // add style and strut values
     QStyleOptionComboBox opt;
     initStyleOption(&opt);
     sh = style()->sizeFromContents(QStyle::CT_ComboBox, &opt, sh, this);
     return sh;
 }
 
 QSize IconComboBox::sizeHint() const
 {
     return minimumSizeHint();
 }
 
 static QRect popupGeometry(QWidget* widget)
 {
     return widget->window()->windowHandle()->screen()->geometry();
 }
 
 void IconComboBox::showPopup()
 {
     QComboBox::showPopup();
 
     // now adapt popup to original QComboBox width
     QWidget * popup = findChild<QFrame*>();
     popup->resize(QComboBox::sizeHint().width(), popup->height());
 
     // make sure the popup is on screen
     QRect popupRect = popup->rect();
     const QRect screen = popupGeometry(this);
     const int right = mapToGlobal(popupRect.bottomRight()).x();
 
     if (right > screen.right()) {
         popupRect.moveRight(popupRect.right() - (right - screen.right()));
     }
     popup->move(mapToGlobal(popupRect.topLeft()).x(), popup->y());
 }
 
 void IconComboBox::paintEvent(QPaintEvent *)
 {
     QStylePainter painter(this);
     painter.setPen(palette().color(QPalette::Text));
 
     // draw the combobox frame, focusrect and selected etc.
     QStyleOptionComboBox opt;
     initStyleOption(&opt);
     opt.currentText.clear();
     painter.drawComplexControl(QStyle::CC_ComboBox, opt);
 
     // draw the icon and text
     painter.drawControl(QStyle::CE_ComboBoxLabel, opt);
 }