File indexing completed on 2024-05-12 15:59:56

 /* This file is part of the KDE project
  * SPDX-FileCopyrightText: 1999 Carsten Pfeiffer (pfeiffer@kde.org)
  * SPDX-FileCopyrightText: 2002 Igor Jansen (rm@kde.org)
  * SPDX-FileCopyrightText: 2018 Boudewijn Rempt <boud@valdyas.org>
  *
  * SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "KisIconToolTip.h"
 
 #include <QTextDocument>
 #include <QUrl>
 #include <QModelIndex>
 
 #include <KisResourceModel.h>
 #include "KoCheckerBoardPainter.h"
 #include <QPainter>
 
 #include <klocalizedstring.h>
 #include "kis_assert.h"
 
 KisIconToolTip::KisIconToolTip()
 {
 }
 
 KisIconToolTip::~KisIconToolTip()
 {
 }
 
 void KisIconToolTip::setFixedToolTipThumbnailSize(const QSize &size)
 {
     m_fixedToolTipThumbnailSize = size;
 }
 
 void KisIconToolTip::setToolTipShouldRenderCheckers(bool value)
 {
     if (value) {
         m_checkersPainter.reset(new KoCheckerBoardPainter(4));
     } else {
         m_checkersPainter.reset();
     }
 }
 
 QTextDocument *KisIconToolTip::createDocument(const QModelIndex &index)
 {
     QTextDocument *doc = new QTextDocument(this);
 
     QImage thumb = index.data(Qt::DecorationRole).value<QImage>();
     if (thumb.isNull()) {
         thumb = index.data(Qt::UserRole + KisAbstractResourceModel::Thumbnail).value<QImage>();
     }
 
     if (!m_fixedToolTipThumbnailSize.isEmpty() && !thumb.isNull()) {
         int pixelSize = 48; //  // let's say, 48x48?
         if (!thumb.isNull()) {
             if (thumb.size().width() < pixelSize || thumb.size().height() < pixelSize) {
                 // this allows the pixel patterns to be displayed correctly,
                 // while the presets (which have 200x200 thumbnails) will still be pretty
                 // Fast Transformation == Nearest Neighbour
                 thumb = thumb.scaled(m_fixedToolTipThumbnailSize*devicePixelRatioF(), Qt::IgnoreAspectRatio, Qt::FastTransformation);
             } else {
                 thumb = thumb.scaled(m_fixedToolTipThumbnailSize*devicePixelRatioF(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
             }
         }
     }
 
     if (m_checkersPainter) {
         QImage image(thumb.size(), QImage::Format_ARGB32);
 
         {
             QPainter gc(&image);
             m_checkersPainter->paint(gc, thumb.rect());
             gc.drawImage(QPoint(), thumb);
         }
 
         thumb = image;
     }
 
     thumb.setDevicePixelRatio(devicePixelRatioF());
     doc->addResource(QTextDocument::ImageResource, QUrl("data:thumbnail"), thumb);
 
     QString name = index.data(Qt::DisplayRole).toString();
     QString presetDisplayName = index.data(Qt::UserRole + KisAbstractResourceModel::Name).toString().replace("_", " ");
     //This is to ensure that the other uses of this class don't get an empty string, while resource management should get a nice string.
     if (!presetDisplayName.isEmpty()) {
         name = presetDisplayName;
     }
 
     QString translatedName = index.data(Qt::UserRole + KisAbstractResourceModel::Tooltip).toString().replace("_", " ");
 
     QString tagsRow;
     QString tagsData = index.data(Qt::UserRole + KisAbstractResourceModel::Tags).toStringList().join(", ");
     if (!tagsData.isEmpty()) {
         const QString list = QString("<ul style=\"list-style-type: none; margin: 0px;\">%1</ul> ").arg(tagsData);
         tagsRow = QString("<tr><td>%1:</td><td style=\"text-align: right;\">%2</td></tr>").arg(i18n("Tags"), list);
     }
 
     QString location = index.data(Qt::UserRole + KisAbstractResourceModel::Location).toString();
 
     if (location.isEmpty()) {
         location = i18nc("a placeholder name for the default storage of resources", "resource folder");
     }
 
     const QString locationRow = QString("<tr><td>%1:</td><td style=\"text-align: right;\">%2</td></tr>").arg(i18n("Location"), location);
 
     const QString footerTable = QString("<p><table>%1%2</table></p>").arg(tagsRow).arg(locationRow);
 
     const QString image = QString("<center><img src=\"data:thumbnail\"></center>");
     QString body = QString("<h3 align=\"center\">%1</h3>%2%3").arg(name, image, footerTable);
     if (translatedName != name) {
         body = QString("<h3 align=\"center\">%1</h3><h4 align=\"center\">%2</h4>%3%4").arg(name, translatedName, image, footerTable);
     }
     const QString html = QString("<html><body>%1</body></html>").arg(body);
 
     doc->setHtml(html);
 
     const int margin = 16;
     doc->setTextWidth(qMin(doc->size().width() + 2 * margin, qreal(500.0)));
     doc->setDocumentMargin(margin);
     doc->setUseDesignMetrics(true);
 
     return doc;
 }