File indexing completed on 2025-01-19 03:53:52 

0001 /* ============================================================
0002  *
0003  * This file is a part of digiKam project
0004  * https://www.digikam.org
0005  *
0006  * Date        : 2008-03-13
0007  * Description : Image files selection dialog - List view tooltip.
0008  *
0009  * SPDX-FileCopyrightText: 2008-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
0010  *
0011  * SPDX-License-Identifier: GPL-2.0-or-later
0012  *
0013  * ============================================================ */
0014 
0015 #include "imagedialog_p.h"
0016 
0017 namespace Digikam
0018 {
0019 
0020 class Q_DECL_HIDDEN ImageDialogToolTip::Private
0021 {
0022 public:
0023 
0024     explicit Private()
0025       : view        (nullptr),
0026         catcher     (nullptr),
0027         thread      (nullptr)
0028     {
0029     }
0030 
0031     QAbstractItemView*     view;
0032     QModelIndex            index;
0033     QUrl                   url;
0034     QImage                 preview;
0035     ThumbnailImageCatcher* catcher;
0036     ThumbnailLoadThread*   thread;
0037 };
0038 
0039 ImageDialogToolTip::ImageDialogToolTip()
0040     : DItemToolTip(),
0041       d           (new Private)
0042 {
0043     d->thread  = new ThumbnailLoadThread;
0044     d->thread->setThumbnailSize(64);
0045     d->thread->setPixmapRequested(false);
0046     d->catcher = new ThumbnailImageCatcher(d->thread);
0047 }
0048 
0049 ImageDialogToolTip::~ImageDialogToolTip()
0050 {
0051     d->catcher->thread()->stopAllTasks();
0052     d->catcher->cancel();
0053 
0054     delete d->catcher->thread();
0055     delete d->catcher;
0056     delete d;
0057 }
0058 
0059 void ImageDialogToolTip::setData(QAbstractItemView* const view,
0060                                  const QModelIndex& index,
0061                                  const QUrl& url)
0062 {
0063     d->view    = view;
0064     d->index   = index;
0065     d->url     = url;
0066 
0067     d->catcher->setActive(true);
0068     d->catcher->thread()->find(ThumbnailIdentifier(d->url.toLocalFile()));
0069     d->catcher->enqueue();
0070     QList<QImage> images = d->catcher->waitForThumbnails();
0071 
0072     if (!images.isEmpty())
0073     {
0074         d->preview = images.first();
0075     }
0076     else
0077     {
0078         d->preview = QImage();
0079     }
0080 
0081     d->catcher->setActive(false);
0082 
0083     if (!d->index.isValid())
0084     {
0085         hide();
0086     }
0087     else
0088     {
0089         updateToolTip();
0090         reposition();
0091 
0092         if (isHidden() && !toolTipIsEmpty())
0093         {
0094             show();
0095         }
0096     }
0097 }
0098 
0099 QRect ImageDialogToolTip::repositionRect()
0100 {
0101     if (!d->index.isValid())
0102     {
0103         return QRect();
0104     }
0105 
0106     QRect rect = d->view->visualRect(d->index);
0107     rect.moveTopLeft(d->view->viewport()->mapToGlobal(rect.topLeft()));
0108 
0109     return rect;
0110 }
0111 
0112 QString ImageDialogToolTip::tipContents()
0113 {
0114     if (!d->index.isValid())
0115     {
0116         return QString();
0117     }
0118 
0119     QString identify = ImageDialogPreview::identifyItem(d->url, d->preview);
0120 
0121     return identify;
0122 }
0123 
0124 } // namespace Digikam