File indexing completed on 2024-04-28 04:21:23

 // SPDX-FileCopyrightText: 2003-2019 The KPhotoAlbum Development Team
 // SPDX-FileCopyrightText: 2022 Johannes Zarl-Zierl <johannes@zarl-zierl.at>
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "ThumbnailToolTip.h"
 
 #include "ThumbnailWidget.h"
 
 #include <DB/ImageDB.h>
 #include <DB/ImageInfo.h>
 #include <Utilities/FileUtil.h>
 #include <kpabase/SettingsData.h>
 
 #include <QApplication>
 #include <QCursor>
 #include <QDesktopWidget>
 #include <QScreen>
 
 /**
    \class ThumbnailToolTip
    This class takes care of showing tooltips for the individual items in the thumbnail view.
    I tried implementing this with QToolTip::maybeTip() on the iconview, but it had the
    disadvantages that either the tooltip would not follow the
    mouse( and would therefore stand on top of the image), or it flickered.
 */
 
 ThumbnailView::ThumbnailToolTip::ThumbnailToolTip(ThumbnailWidget *view)
     : Utilities::ToolTip(view, Qt::FramelessWindowHint | Qt::Window | Qt::X11BypassWindowManagerHint | Qt::Tool)
     , m_view(view)
     , m_widthInverse(false)
     , m_heightInverse(false)
 {
 }
 
 bool ThumbnailView::ThumbnailToolTip::eventFilter(QObject *o, QEvent *event)
 {
     if (o == m_view->viewport() && event->type() == QEvent::Leave)
         hide();
 
     else if (event->type() == QEvent::MouseMove || event->type() == QEvent::Wheel) {
         // We need this to be done through a timer, so the thumbnail view gets the wheel even first,
         // otherwise the fileName reported by mediaIdUnderCursor is wrong.
         QTimer::singleShot(0, this, SLOT(requestToolTip()));
     }
 
     return false;
 }
 
 void ThumbnailView::ThumbnailToolTip::requestToolTip()
 {
     const DB::FileName fileName = m_view->mediaIdUnderCursor();
     ToolTip::requestToolTip(fileName);
 }
 
 void ThumbnailView::ThumbnailToolTip::setActive(bool b)
 {
     if (b) {
         requestToolTip();
         m_view->viewport()->installEventFilter(this);
     } else {
         m_view->viewport()->removeEventFilter(this);
         hide();
     }
 }
 
 void ThumbnailView::ThumbnailToolTip::placeWindow()
 {
     // First try to set the position.
     QPoint pos = QCursor::pos() + QPoint(20, 20);
     if (m_widthInverse)
         pos.setX(pos.x() - 30 - width());
     if (m_heightInverse)
         pos.setY(pos.y() - 30 - height());
 
     QScreen *screen = qApp->screenAt(QCursor::pos());
     if (!screen)
         return;
     QRect geom = screen->geometry();
 
     // Now test whether the window moved outside the screen
     if (m_widthInverse) {
         if (pos.x() < geom.x()) {
             pos.setX(QCursor::pos().x() + 20);
             m_widthInverse = false;
         }
     } else {
         if (pos.x() + width() > geom.right()) {
             pos.setX(QCursor::pos().x() - width());
             m_widthInverse = true;
         }
     }
 
     if (m_heightInverse) {
         if (pos.y() < geom.y()) {
             pos.setY(QCursor::pos().y() + 10);
             m_heightInverse = false;
         }
     } else {
         if (pos.y() + height() > geom.bottom()) {
             pos.setY(QCursor::pos().y() - 10 - height());
             m_heightInverse = true;
         }
     }
 
     move(pos);
 }
 
 // vi:expandtab:tabstop=4 shiftwidth=4:
 
 #include "moc_ThumbnailToolTip.cpp"