File indexing completed on 2024-02-25 03:59:22

0001 /*  This file is part of the KDE libraries
0002     SPDX-FileCopyrightText: 1999 Steffen Hansen <hansen@kde.org>
0003     SPDX-FileCopyrightText: 2005 Joseph Wenninger <jowenn@kde.org>
0004 
0005     SPDX-License-Identifier: LGPL-2.0-or-later
0006 */
0007 
0008 #include "kcolormimedata.h"
0009 
0010 #include <QColor>
0011 #include <QDrag>
0012 #include <QMimeData>
0013 #include <QPainter>
0014 
0015 void KColorMimeData::populateMimeData(QMimeData *mimeData, const QColor &color)
0016 {
0017     mimeData->setColorData(color);
0018     mimeData->setText(color.name());
0019 }
0020 
0021 bool KColorMimeData::canDecode(const QMimeData *mimeData)
0022 {
0023     if (mimeData->hasColor()) {
0024         return true;
0025     }
0026     if (mimeData->hasText()) {
0027         const QString colorName = mimeData->text();
0028         if ((colorName.length() >= 4) && (colorName[0] == QLatin1Char('#'))) {
0029             return true;
0030         }
0031     }
0032     return false;
0033 }
0034 
0035 QColor KColorMimeData::fromMimeData(const QMimeData *mimeData)
0036 {
0037     if (mimeData->hasColor()) {
0038         return mimeData->colorData().value<QColor>();
0039     }
0040     if (canDecode(mimeData)) {
0041         return QColor(mimeData->text());
0042     }
0043     return QColor();
0044 }
0045 
0046 QDrag *KColorMimeData::createDrag(const QColor &color, QObject *dragsource)
0047 {
0048     QDrag *drag = new QDrag(dragsource);
0049     QMimeData *mime = new QMimeData;
0050     populateMimeData(mime, color);
0051     drag->setMimeData(mime);
0052     QPixmap colorpix(25, 20);
0053     colorpix.fill(color);
0054     QPainter p(&colorpix);
0055     p.setPen(Qt::black);
0056     p.drawRect(0, 0, 24, 19);
0057     p.end();
0058     drag->setPixmap(colorpix);
0059     drag->setHotSpot(QPoint(-5, -7));
0060     return drag;
0061 }